Mercurial > hg > octave-kai > gnulib-hg
annotate lib/regexec.c @ 10955:5c229a7fba2a
Avoid gcc warnings on cygwin.
* lib/regex_internal.c (re_string_reconstruct) [!RE_ENABLE_I18N]:
Avoid unused variable.
* lib/regexec.c (check_arrival_add_next_nodes) [!RE_ENABLE_I18N]:
Likewise.
Signed-off-by: Eric Blake <ebb9@byu.net>
| author | Eric Blake <ebb9@byu.net> |
|---|---|
| date | Mon, 22 Dec 2008 06:11:32 -0700 |
| parents | 6b412972dce7 |
| children | 7e353646d8a6 |
| rev | line source |
|---|---|
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1 /* Extended regular expression matching and search library. |
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2 Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, |
| 8540 | 3 Inc. |
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4 This file is part of the GNU C Library. |
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5 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>. |
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6 |
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7 This program is free software; you can redistribute it and/or modify |
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8 it under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation; either version 2, or (at your option) |
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10 any later version. |
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11 |
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12 This program is distributed in the hope that it will be useful, |
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License along |
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18 with this program; if not, write to the Free Software Foundation, |
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19 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ |
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20 |
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21 static reg_errcode_t match_ctx_init (re_match_context_t *cache, int eflags, |
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22 Idx n) internal_function; |
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23 static void match_ctx_clean (re_match_context_t *mctx) internal_function; |
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24 static void match_ctx_free (re_match_context_t *cache) internal_function; |
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25 static reg_errcode_t match_ctx_add_entry (re_match_context_t *cache, Idx node, |
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26 Idx str_idx, Idx from, Idx to) |
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27 internal_function; |
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28 static Idx search_cur_bkref_entry (const re_match_context_t *mctx, Idx str_idx) |
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29 internal_function; |
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30 static reg_errcode_t match_ctx_add_subtop (re_match_context_t *mctx, Idx node, |
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31 Idx str_idx) internal_function; |
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32 static re_sub_match_last_t * match_ctx_add_sublast (re_sub_match_top_t *subtop, |
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33 Idx node, Idx str_idx) |
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34 internal_function; |
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35 static void sift_ctx_init (re_sift_context_t *sctx, re_dfastate_t **sifted_sts, |
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36 re_dfastate_t **limited_sts, Idx last_node, |
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37 Idx last_str_idx) |
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38 internal_function; |
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39 static reg_errcode_t re_search_internal (const regex_t *preg, |
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40 const char *string, Idx length, |
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41 Idx start, Idx last_start, Idx stop, |
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42 size_t nmatch, regmatch_t pmatch[], |
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43 int eflags) internal_function; |
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44 static regoff_t re_search_2_stub (struct re_pattern_buffer *bufp, |
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45 const char *string1, Idx length1, |
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46 const char *string2, Idx length2, |
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47 Idx start, regoff_t range, |
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48 struct re_registers *regs, |
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49 Idx stop, bool ret_len) internal_function; |
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50 static regoff_t re_search_stub (struct re_pattern_buffer *bufp, |
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51 const char *string, Idx length, Idx start, |
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52 regoff_t range, Idx stop, |
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53 struct re_registers *regs, |
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54 bool ret_len) internal_function; |
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55 static unsigned int re_copy_regs (struct re_registers *regs, regmatch_t *pmatch, |
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56 Idx nregs, int regs_allocated) |
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57 internal_function; |
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58 static reg_errcode_t prune_impossible_nodes (re_match_context_t *mctx) |
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59 internal_function; |
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60 static Idx check_matching (re_match_context_t *mctx, bool fl_longest_match, |
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61 Idx *p_match_first) internal_function; |
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62 static Idx check_halt_state_context (const re_match_context_t *mctx, |
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63 const re_dfastate_t *state, Idx idx) |
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64 internal_function; |
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65 static void update_regs (const re_dfa_t *dfa, regmatch_t *pmatch, |
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66 regmatch_t *prev_idx_match, Idx cur_node, |
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67 Idx cur_idx, Idx nmatch) internal_function; |
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68 static reg_errcode_t push_fail_stack (struct re_fail_stack_t *fs, |
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69 Idx str_idx, Idx dest_node, Idx nregs, |
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70 regmatch_t *regs, |
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71 re_node_set *eps_via_nodes) |
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72 internal_function; |
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73 static reg_errcode_t set_regs (const regex_t *preg, |
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74 const re_match_context_t *mctx, |
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75 size_t nmatch, regmatch_t *pmatch, |
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76 bool fl_backtrack) internal_function; |
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77 static reg_errcode_t free_fail_stack_return (struct re_fail_stack_t *fs) |
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78 internal_function; |
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79 |
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80 #ifdef RE_ENABLE_I18N |
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81 static int sift_states_iter_mb (const re_match_context_t *mctx, |
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82 re_sift_context_t *sctx, |
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83 Idx node_idx, Idx str_idx, Idx max_str_idx) |
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84 internal_function; |
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85 #endif /* RE_ENABLE_I18N */ |
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86 static reg_errcode_t sift_states_backward (const re_match_context_t *mctx, |
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87 re_sift_context_t *sctx) |
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88 internal_function; |
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89 static reg_errcode_t build_sifted_states (const re_match_context_t *mctx, |
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90 re_sift_context_t *sctx, Idx str_idx, |
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91 re_node_set *cur_dest) |
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92 internal_function; |
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93 static reg_errcode_t update_cur_sifted_state (const re_match_context_t *mctx, |
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94 re_sift_context_t *sctx, |
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95 Idx str_idx, |
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96 re_node_set *dest_nodes) |
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97 internal_function; |
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98 static reg_errcode_t add_epsilon_src_nodes (const re_dfa_t *dfa, |
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99 re_node_set *dest_nodes, |
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100 const re_node_set *candidates) |
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101 internal_function; |
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102 static bool check_dst_limits (const re_match_context_t *mctx, |
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103 const re_node_set *limits, |
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104 Idx dst_node, Idx dst_idx, Idx src_node, |
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105 Idx src_idx) internal_function; |
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106 static int check_dst_limits_calc_pos_1 (const re_match_context_t *mctx, |
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107 int boundaries, Idx subexp_idx, |
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108 Idx from_node, Idx bkref_idx) |
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109 internal_function; |
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110 static int check_dst_limits_calc_pos (const re_match_context_t *mctx, |
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111 Idx limit, Idx subexp_idx, |
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112 Idx node, Idx str_idx, |
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113 Idx bkref_idx) internal_function; |
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114 static reg_errcode_t check_subexp_limits (const re_dfa_t *dfa, |
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115 re_node_set *dest_nodes, |
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116 const re_node_set *candidates, |
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117 re_node_set *limits, |
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118 struct re_backref_cache_entry *bkref_ents, |
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119 Idx str_idx) internal_function; |
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120 static reg_errcode_t sift_states_bkref (const re_match_context_t *mctx, |
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121 re_sift_context_t *sctx, |
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122 Idx str_idx, const re_node_set *candidates) |
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123 internal_function; |
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124 static reg_errcode_t merge_state_array (const re_dfa_t *dfa, |
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125 re_dfastate_t **dst, |
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126 re_dfastate_t **src, Idx num) |
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127 internal_function; |
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128 static re_dfastate_t *find_recover_state (reg_errcode_t *err, |
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129 re_match_context_t *mctx) internal_function; |
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130 static re_dfastate_t *transit_state (reg_errcode_t *err, |
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131 re_match_context_t *mctx, |
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132 re_dfastate_t *state) internal_function; |
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133 static re_dfastate_t *merge_state_with_log (reg_errcode_t *err, |
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134 re_match_context_t *mctx, |
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135 re_dfastate_t *next_state) |
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136 internal_function; |
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137 static reg_errcode_t check_subexp_matching_top (re_match_context_t *mctx, |
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138 re_node_set *cur_nodes, |
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139 Idx str_idx) internal_function; |
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140 #if 0 |
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141 static re_dfastate_t *transit_state_sb (reg_errcode_t *err, |
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142 re_match_context_t *mctx, |
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143 re_dfastate_t *pstate) |
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144 internal_function; |
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145 #endif |
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146 #ifdef RE_ENABLE_I18N |
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147 static reg_errcode_t transit_state_mb (re_match_context_t *mctx, |
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148 re_dfastate_t *pstate) |
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149 internal_function; |
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150 #endif /* RE_ENABLE_I18N */ |
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151 static reg_errcode_t transit_state_bkref (re_match_context_t *mctx, |
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152 const re_node_set *nodes) |
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153 internal_function; |
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154 static reg_errcode_t get_subexp (re_match_context_t *mctx, |
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155 Idx bkref_node, Idx bkref_str_idx) |
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156 internal_function; |
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157 static reg_errcode_t get_subexp_sub (re_match_context_t *mctx, |
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158 const re_sub_match_top_t *sub_top, |
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159 re_sub_match_last_t *sub_last, |
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160 Idx bkref_node, Idx bkref_str) |
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161 internal_function; |
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162 static Idx find_subexp_node (const re_dfa_t *dfa, const re_node_set *nodes, |
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163 Idx subexp_idx, int type) internal_function; |
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164 static reg_errcode_t check_arrival (re_match_context_t *mctx, |
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165 state_array_t *path, Idx top_node, |
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166 Idx top_str, Idx last_node, Idx last_str, |
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167 int type) internal_function; |
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168 static reg_errcode_t check_arrival_add_next_nodes (re_match_context_t *mctx, |
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169 Idx str_idx, |
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170 re_node_set *cur_nodes, |
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171 re_node_set *next_nodes) |
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172 internal_function; |
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173 static reg_errcode_t check_arrival_expand_ecl (const re_dfa_t *dfa, |
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174 re_node_set *cur_nodes, |
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175 Idx ex_subexp, int type) |
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176 internal_function; |
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177 static reg_errcode_t check_arrival_expand_ecl_sub (const re_dfa_t *dfa, |
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178 re_node_set *dst_nodes, |
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179 Idx target, Idx ex_subexp, |
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180 int type) internal_function; |
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181 static reg_errcode_t expand_bkref_cache (re_match_context_t *mctx, |
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182 re_node_set *cur_nodes, Idx cur_str, |
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183 Idx subexp_num, int type) |
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184 internal_function; |
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185 static bool build_trtable (const re_dfa_t *dfa, |
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186 re_dfastate_t *state) internal_function; |
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187 #ifdef RE_ENABLE_I18N |
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188 static int check_node_accept_bytes (const re_dfa_t *dfa, Idx node_idx, |
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189 const re_string_t *input, Idx idx) |
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190 internal_function; |
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191 # ifdef _LIBC |
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192 static unsigned int find_collation_sequence_value (const unsigned char *mbs, |
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193 size_t name_len) |
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194 internal_function; |
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195 # endif /* _LIBC */ |
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196 #endif /* RE_ENABLE_I18N */ |
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197 static Idx group_nodes_into_DFAstates (const re_dfa_t *dfa, |
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198 const re_dfastate_t *state, |
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199 re_node_set *states_node, |
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200 bitset_t *states_ch) internal_function; |
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201 static bool check_node_accept (const re_match_context_t *mctx, |
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202 const re_token_t *node, Idx idx) |
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203 internal_function; |
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204 static reg_errcode_t extend_buffers (re_match_context_t *mctx) |
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205 internal_function; |
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206 |
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207 /* Entry point for POSIX code. */ |
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208 |
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209 /* regexec searches for a given pattern, specified by PREG, in the |
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210 string STRING. |
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211 |
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212 If NMATCH is zero or REG_NOSUB was set in the cflags argument to |
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213 `regcomp', we ignore PMATCH. Otherwise, we assume PMATCH has at |
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214 least NMATCH elements, and we set them to the offsets of the |
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215 corresponding matched substrings. |
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216 |
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217 EFLAGS specifies `execution flags' which affect matching: if |
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218 REG_NOTBOL is set, then ^ does not match at the beginning of the |
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219 string; if REG_NOTEOL is set, then $ does not match at the end. |
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220 |
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221 We return 0 if we find a match and REG_NOMATCH if not. */ |
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222 |
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223 int |
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224 regexec (preg, string, nmatch, pmatch, eflags) |
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225 const regex_t *_Restrict_ preg; |
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226 const char *_Restrict_ string; |
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227 size_t nmatch; |
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228 regmatch_t pmatch[_Restrict_arr_]; |
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229 int eflags; |
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230 { |
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231 reg_errcode_t err; |
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232 Idx start, length; |
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233 #ifdef _LIBC |
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234 re_dfa_t *dfa = (re_dfa_t *) preg->buffer; |
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235 #endif |
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236 |
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237 if (eflags & ~(REG_NOTBOL | REG_NOTEOL | REG_STARTEND)) |
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238 return REG_BADPAT; |
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239 |
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240 if (eflags & REG_STARTEND) |
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241 { |
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242 start = pmatch[0].rm_so; |
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243 length = pmatch[0].rm_eo; |
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244 } |
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245 else |
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246 { |
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247 start = 0; |
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248 length = strlen (string); |
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249 } |
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250 |
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251 __libc_lock_lock (dfa->lock); |
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252 if (preg->no_sub) |
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253 err = re_search_internal (preg, string, length, start, length, |
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254 length, 0, NULL, eflags); |
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255 else |
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256 err = re_search_internal (preg, string, length, start, length, |
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257 length, nmatch, pmatch, eflags); |
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258 __libc_lock_unlock (dfa->lock); |
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259 return err != REG_NOERROR; |
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260 } |
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261 |
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262 #ifdef _LIBC |
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263 # include <shlib-compat.h> |
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264 versioned_symbol (libc, __regexec, regexec, GLIBC_2_3_4); |
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265 |
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266 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) |
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267 __typeof__ (__regexec) __compat_regexec; |
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268 |
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269 int |
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270 attribute_compat_text_section |
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271 __compat_regexec (const regex_t *_Restrict_ preg, |
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272 const char *_Restrict_ string, size_t nmatch, |
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273 regmatch_t pmatch[], int eflags) |
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274 { |
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275 return regexec (preg, string, nmatch, pmatch, |
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276 eflags & (REG_NOTBOL | REG_NOTEOL)); |
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277 } |
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278 compat_symbol (libc, __compat_regexec, regexec, GLIBC_2_0); |
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279 # endif |
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280 #endif |
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281 |
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282 /* Entry points for GNU code. */ |
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283 |
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284 /* re_match, re_search, re_match_2, re_search_2 |
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285 |
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286 The former two functions operate on STRING with length LENGTH, |
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287 while the later two operate on concatenation of STRING1 and STRING2 |
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288 with lengths LENGTH1 and LENGTH2, respectively. |
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289 |
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290 re_match() matches the compiled pattern in BUFP against the string, |
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291 starting at index START. |
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292 |
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293 re_search() first tries matching at index START, then it tries to match |
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294 starting from index START + 1, and so on. The last start position tried |
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295 is START + RANGE. (Thus RANGE = 0 forces re_search to operate the same |
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296 way as re_match().) |
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297 |
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298 The parameter STOP of re_{match,search}_2 specifies that no match exceeding |
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299 the first STOP characters of the concatenation of the strings should be |
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300 concerned. |
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301 |
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302 If REGS is not NULL, and BUFP->no_sub is not set, the offsets of the match |
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303 and all groups is stored in REGS. (For the "_2" variants, the offsets are |
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304 computed relative to the concatenation, not relative to the individual |
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305 strings.) |
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306 |
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307 On success, re_match* functions return the length of the match, re_search* |
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308 return the position of the start of the match. Return value -1 means no |
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309 match was found and -2 indicates an internal error. */ |
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310 |
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311 regoff_t |
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312 re_match (bufp, string, length, start, regs) |
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313 struct re_pattern_buffer *bufp; |
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314 const char *string; |
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315 Idx length, start; |
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316 struct re_registers *regs; |
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317 { |
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318 return re_search_stub (bufp, string, length, start, 0, length, regs, true); |
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319 } |
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320 #ifdef _LIBC |
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321 weak_alias (__re_match, re_match) |
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322 #endif |
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323 |
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324 regoff_t |
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325 re_search (bufp, string, length, start, range, regs) |
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326 struct re_pattern_buffer *bufp; |
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327 const char *string; |
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328 Idx length, start; |
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329 regoff_t range; |
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330 struct re_registers *regs; |
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331 { |
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332 return re_search_stub (bufp, string, length, start, range, length, regs, |
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333 false); |
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334 } |
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335 #ifdef _LIBC |
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336 weak_alias (__re_search, re_search) |
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337 #endif |
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338 |
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339 regoff_t |
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340 re_match_2 (bufp, string1, length1, string2, length2, start, regs, stop) |
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341 struct re_pattern_buffer *bufp; |
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342 const char *string1, *string2; |
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343 Idx length1, length2, start, stop; |
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344 struct re_registers *regs; |
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345 { |
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346 return re_search_2_stub (bufp, string1, length1, string2, length2, |
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347 start, 0, regs, stop, true); |
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348 } |
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349 #ifdef _LIBC |
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350 weak_alias (__re_match_2, re_match_2) |
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351 #endif |
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352 |
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353 regoff_t |
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354 re_search_2 (bufp, string1, length1, string2, length2, start, range, regs, stop) |
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355 struct re_pattern_buffer *bufp; |
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356 const char *string1, *string2; |
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357 Idx length1, length2, start, stop; |
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358 regoff_t range; |
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359 struct re_registers *regs; |
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360 { |
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361 return re_search_2_stub (bufp, string1, length1, string2, length2, |
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362 start, range, regs, stop, false); |
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363 } |
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364 #ifdef _LIBC |
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365 weak_alias (__re_search_2, re_search_2) |
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366 #endif |
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367 |
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368 static regoff_t |
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369 internal_function |
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370 re_search_2_stub (struct re_pattern_buffer *bufp, |
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371 const char *string1, Idx length1, |
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372 const char *string2, Idx length2, |
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373 Idx start, regoff_t range, struct re_registers *regs, |
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374 Idx stop, bool ret_len) |
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375 { |
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376 const char *str; |
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377 regoff_t rval; |
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378 Idx len = length1 + length2; |
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379 char *s = NULL; |
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380 |
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381 if (BE (length1 < 0 || length2 < 0 || stop < 0 || len < length1, 0)) |
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382 return -2; |
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383 |
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384 /* Concatenate the strings. */ |
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385 if (length2 > 0) |
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386 if (length1 > 0) |
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387 { |
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388 s = re_malloc (char, len); |
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389 |
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390 if (BE (s == NULL, 0)) |
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391 return -2; |
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392 #ifdef _LIBC |
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393 memcpy (__mempcpy (s, string1, length1), string2, length2); |
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394 #else |
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395 memcpy (s, string1, length1); |
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396 memcpy (s + length1, string2, length2); |
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397 #endif |
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398 str = s; |
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399 } |
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400 else |
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401 str = string2; |
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402 else |
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403 str = string1; |
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404 |
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405 rval = re_search_stub (bufp, str, len, start, range, stop, regs, |
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406 ret_len); |
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407 re_free (s); |
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408 return rval; |
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409 } |
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410 |
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411 /* The parameters have the same meaning as those of re_search. |
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412 Additional parameters: |
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413 If RET_LEN is true the length of the match is returned (re_match style); |
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414 otherwise the position of the match is returned. */ |
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415 |
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416 static regoff_t |
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417 internal_function |
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418 re_search_stub (struct re_pattern_buffer *bufp, |
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419 const char *string, Idx length, |
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420 Idx start, regoff_t range, Idx stop, struct re_registers *regs, |
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421 bool ret_len) |
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422 { |
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423 reg_errcode_t result; |
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424 regmatch_t *pmatch; |
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425 Idx nregs; |
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426 regoff_t rval; |
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427 int eflags = 0; |
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6079
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* config/srclist.txt: Add glibc bug 1225.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6076
diff
changeset
|
428 #ifdef _LIBC |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
429 re_dfa_t *dfa = (re_dfa_t *) bufp->buffer; |
|
6079
221ad521f976
* config/srclist.txt: Add glibc bug 1225.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6076
diff
changeset
|
430 #endif |
|
6186
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
431 Idx last_start = start + range; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
432 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
433 /* Check for out-of-range. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
434 if (BE (start < 0 || start > length, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
435 return -1; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
436 if (BE (length < last_start || (0 <= range && last_start < start), 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
437 last_start = length; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
438 else if (BE (last_start < 0 || (range < 0 && start <= last_start), 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
439 last_start = 0; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
440 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
441 __libc_lock_lock (dfa->lock); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
442 |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
443 eflags |= (bufp->not_bol) ? REG_NOTBOL : 0; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
444 eflags |= (bufp->not_eol) ? REG_NOTEOL : 0; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
445 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
446 /* Compile fastmap if we haven't yet. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
447 if (start < last_start && bufp->fastmap != NULL && !bufp->fastmap_accurate) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
448 re_compile_fastmap (bufp); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
449 |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
450 if (BE (bufp->no_sub, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
451 regs = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
452 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
453 /* We need at least 1 register. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
454 if (regs == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
455 nregs = 1; |
|
6726
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Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
456 else if (BE (bufp->regs_allocated == REGS_FIXED |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
457 && regs->num_regs <= bufp->re_nsub, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
458 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
459 nregs = regs->num_regs; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
460 if (BE (nregs < 1, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
461 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
462 /* Nothing can be copied to regs. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
463 regs = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
464 nregs = 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
465 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
466 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
467 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
468 nregs = bufp->re_nsub + 1; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
469 pmatch = re_malloc (regmatch_t, nregs); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
470 if (BE (pmatch == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
471 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
472 rval = -2; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
473 goto out; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
474 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
475 |
|
6186
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
476 result = re_search_internal (bufp, string, length, start, last_start, stop, |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
477 nregs, pmatch, eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
478 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
479 rval = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
480 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
481 /* I hope we needn't fill ther regs with -1's when no match was found. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
482 if (result != REG_NOERROR) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
483 rval = -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
484 else if (regs != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
485 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
486 /* If caller wants register contents data back, copy them. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
487 bufp->regs_allocated = re_copy_regs (regs, pmatch, nregs, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
488 bufp->regs_allocated); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
489 if (BE (bufp->regs_allocated == REGS_UNALLOCATED, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
490 rval = -2; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
491 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
492 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
493 if (BE (rval == 0, 1)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
494 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
495 if (ret_len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
496 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
497 assert (pmatch[0].rm_so == start); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
498 rval = pmatch[0].rm_eo - start; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
499 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
500 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
501 rval = pmatch[0].rm_so; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
502 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
503 re_free (pmatch); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
504 out: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
505 __libc_lock_unlock (dfa->lock); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
506 return rval; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
507 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
508 |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
509 static unsigned int |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
510 internal_function |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
511 re_copy_regs (struct re_registers *regs, regmatch_t *pmatch, Idx nregs, |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
512 int regs_allocated) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
513 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
514 int rval = REGS_REALLOCATE; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
515 Idx i; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
516 Idx need_regs = nregs + 1; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
517 /* We need one extra element beyond `num_regs' for the `-1' marker GNU code |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
518 uses. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
519 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
520 /* Have the register data arrays been allocated? */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
521 if (regs_allocated == REGS_UNALLOCATED) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
522 { /* No. So allocate them with malloc. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
523 regs->start = re_malloc (regoff_t, need_regs); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
524 if (BE (regs->start == NULL, 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
525 return REGS_UNALLOCATED; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
526 regs->end = re_malloc (regoff_t, need_regs); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
527 if (BE (regs->end == NULL, 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
528 { |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
529 re_free (regs->start); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
530 return REGS_UNALLOCATED; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
531 } |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
532 regs->num_regs = need_regs; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
533 } |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
534 else if (regs_allocated == REGS_REALLOCATE) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
535 { /* Yes. If we need more elements than were already |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
536 allocated, reallocate them. If we need fewer, just |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
537 leave it alone. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
538 if (BE (need_regs > regs->num_regs, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
539 { |
|
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540 regoff_t *new_start = re_realloc (regs->start, regoff_t, need_regs); |
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541 regoff_t *new_end; |
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542 if (BE (new_start == NULL, 0)) |
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543 return REGS_UNALLOCATED; |
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544 new_end = re_realloc (regs->end, regoff_t, need_regs); |
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545 if (BE (new_end == NULL, 0)) |
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546 { |
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547 re_free (new_start); |
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548 return REGS_UNALLOCATED; |
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549 } |
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550 regs->start = new_start; |
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551 regs->end = new_end; |
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552 regs->num_regs = need_regs; |
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553 } |
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554 } |
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555 else |
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556 { |
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557 assert (regs_allocated == REGS_FIXED); |
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558 /* This function may not be called with REGS_FIXED and nregs too big. */ |
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559 assert (regs->num_regs >= nregs); |
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560 rval = REGS_FIXED; |
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561 } |
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562 |
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563 /* Copy the regs. */ |
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564 for (i = 0; i < nregs; ++i) |
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565 { |
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566 regs->start[i] = pmatch[i].rm_so; |
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567 regs->end[i] = pmatch[i].rm_eo; |
|
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568 } |
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569 for ( ; i < regs->num_regs; ++i) |
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570 regs->start[i] = regs->end[i] = -1; |
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571 |
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572 return rval; |
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573 } |
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574 |
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|
575 /* Set REGS to hold NUM_REGS registers, storing them in STARTS and |
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576 ENDS. Subsequent matches using PATTERN_BUFFER and REGS will use |
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577 this memory for recording register information. STARTS and ENDS |
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578 must be allocated using the malloc library routine, and must each |
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579 be at least NUM_REGS * sizeof (regoff_t) bytes long. |
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580 |
|
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581 If NUM_REGS == 0, then subsequent matches should allocate their own |
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|
582 register data. |
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583 |
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584 Unless this function is called, the first search or match using |
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585 PATTERN_BUFFER will allocate its own register data, without |
|
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|
586 freeing the old data. */ |
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587 |
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|
588 void |
|
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589 re_set_registers (bufp, regs, num_regs, starts, ends) |
|
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590 struct re_pattern_buffer *bufp; |
|
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591 struct re_registers *regs; |
|
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592 __re_size_t num_regs; |
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593 regoff_t *starts, *ends; |
|
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594 { |
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595 if (num_regs) |
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596 { |
|
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597 bufp->regs_allocated = REGS_REALLOCATE; |
|
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|
598 regs->num_regs = num_regs; |
|
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599 regs->start = starts; |
|
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600 regs->end = ends; |
|
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|
601 } |
|
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|
602 else |
|
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|
603 { |
|
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|
604 bufp->regs_allocated = REGS_UNALLOCATED; |
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605 regs->num_regs = 0; |
|
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|
606 regs->start = regs->end = NULL; |
|
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|
607 } |
|
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|
608 } |
|
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|
609 #ifdef _LIBC |
|
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|
610 weak_alias (__re_set_registers, re_set_registers) |
|
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|
611 #endif |
|
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|
612 |
|
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|
613 /* Entry points compatible with 4.2 BSD regex library. We don't define |
|
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|
614 them unless specifically requested. */ |
|
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|
615 |
|
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|
616 #if defined _REGEX_RE_COMP || defined _LIBC |
|
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|
617 int |
|
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|
618 # ifdef _LIBC |
|
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|
619 weak_function |
|
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|
620 # endif |
|
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|
621 re_exec (s) |
|
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|
622 const char *s; |
|
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|
623 { |
|
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|
624 return 0 == regexec (&re_comp_buf, s, 0, NULL, 0); |
|
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|
625 } |
|
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|
626 #endif /* _REGEX_RE_COMP */ |
|
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|
627 |
|
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|
628 /* Internal entry point. */ |
|
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changeset
|
629 |
|
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|
630 /* Searches for a compiled pattern PREG in the string STRING, whose |
|
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|
631 length is LENGTH. NMATCH, PMATCH, and EFLAGS have the same |
|
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|
632 meaning as with regexec. LAST_START is START + RANGE, where |
|
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|
633 START and RANGE have the same meaning as with re_search. |
|
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|
634 Return REG_NOERROR if we find a match, and REG_NOMATCH if not, |
|
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changeset
|
635 otherwise return the error code. |
|
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|
636 Note: We assume front end functions already check ranges. |
|
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|
637 (0 <= LAST_START && LAST_START <= LENGTH) */ |
|
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changeset
|
638 |
|
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changeset
|
639 static reg_errcode_t |
|
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* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
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diff
changeset
|
640 internal_function |
|
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changeset
|
641 re_search_internal (const regex_t *preg, |
|
6184
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
642 const char *string, Idx length, |
|
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changeset
|
643 Idx start, Idx last_start, Idx stop, |
|
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diff
changeset
|
644 size_t nmatch, regmatch_t pmatch[], |
|
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changeset
|
645 int eflags) |
|
5968
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|
646 { |
|
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|
647 reg_errcode_t err; |
|
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|
648 const re_dfa_t *dfa = (const re_dfa_t *) preg->buffer; |
|
6184
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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changeset
|
649 Idx left_lim, right_lim; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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changeset
|
650 int incr; |
|
6195
25eaa608fc4e
Use bool where appropriate.
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changeset
|
651 bool fl_longest_match; |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
652 int match_kind; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
653 Idx match_first; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
654 Idx match_last = REG_MISSING; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
655 Idx extra_nmatch; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
656 bool sb; |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
657 int ch; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
658 #if defined _LIBC || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
659 re_match_context_t mctx = { .dfa = dfa }; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
660 #else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
661 re_match_context_t mctx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
662 #endif |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
663 char *fastmap = ((preg->fastmap != NULL && preg->fastmap_accurate |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
664 && start != last_start && !preg->can_be_null) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
665 ? preg->fastmap : NULL); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
666 RE_TRANSLATE_TYPE t = preg->translate; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
667 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
668 #if !(defined _LIBC || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
669 memset (&mctx, '\0', sizeof (re_match_context_t)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
670 mctx.dfa = dfa; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
671 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
672 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
673 extra_nmatch = (nmatch > preg->re_nsub) ? nmatch - (preg->re_nsub + 1) : 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
674 nmatch -= extra_nmatch; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
675 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
676 /* Check if the DFA haven't been compiled. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
677 if (BE (preg->used == 0 || dfa->init_state == NULL |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
678 || dfa->init_state_word == NULL || dfa->init_state_nl == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
679 || dfa->init_state_begbuf == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
680 return REG_NOMATCH; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
681 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
682 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
683 /* We assume front-end functions already check them. */ |
|
6186
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
684 assert (0 <= last_start && last_start <= length); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
685 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
686 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
687 /* If initial states with non-begbuf contexts have no elements, |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
688 the regex must be anchored. If preg->newline_anchor is set, |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
689 we'll never use init_state_nl, so do not check it. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
690 if (dfa->init_state->nodes.nelem == 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
691 && dfa->init_state_word->nodes.nelem == 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
692 && (dfa->init_state_nl->nodes.nelem == 0 |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
693 || !preg->newline_anchor)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
694 { |
|
6186
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
695 if (start != 0 && last_start != 0) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
696 return REG_NOMATCH; |
|
6186
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
697 start = last_start = 0; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
698 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
699 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
700 /* We must check the longest matching, if nmatch > 0. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
701 fl_longest_match = (nmatch != 0 || dfa->nbackref); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
702 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
703 err = re_string_allocate (&mctx.input, string, length, dfa->nodes_len + 1, |
|
10079
6b412972dce7
Fix violation of <stdbool.h> replacement in regex.
Eric Blake <ebb9@byu.net>
parents:
8540
diff
changeset
|
704 preg->translate, (preg->syntax & RE_ICASE) != 0, |
|
6b412972dce7
Fix violation of <stdbool.h> replacement in regex.
Eric Blake <ebb9@byu.net>
parents:
8540
diff
changeset
|
705 dfa); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
706 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
707 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
708 mctx.input.stop = stop; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
709 mctx.input.raw_stop = stop; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
710 mctx.input.newline_anchor = preg->newline_anchor; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
711 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
712 err = match_ctx_init (&mctx, eflags, dfa->nbackref * 2); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
713 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
714 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
715 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
716 /* We will log all the DFA states through which the dfa pass, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
717 if nmatch > 1, or this dfa has "multibyte node", which is a |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
718 back-reference or a node which can accept multibyte character or |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
719 multi character collating element. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
720 if (nmatch > 1 || dfa->has_mb_node) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
721 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
722 /* Avoid overflow. */ |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
723 if (BE (SIZE_MAX / sizeof (re_dfastate_t *) <= mctx.input.bufs_len, 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
724 { |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
725 err = REG_ESPACE; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
726 goto free_return; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
727 } |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
728 |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
729 mctx.state_log = re_malloc (re_dfastate_t *, mctx.input.bufs_len + 1); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
730 if (BE (mctx.state_log == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
731 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
732 err = REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
733 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
734 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
735 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
736 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
737 mctx.state_log = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
738 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
739 match_first = start; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
740 mctx.input.tip_context = (eflags & REG_NOTBOL) ? CONTEXT_BEGBUF |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
741 : CONTEXT_NEWLINE | CONTEXT_BEGBUF; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
742 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
743 /* Check incrementally whether of not the input string match. */ |
|
6186
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
744 incr = (last_start < start) ? -1 : 1; |
|
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
745 left_lim = (last_start < start) ? last_start : start; |
|
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
746 right_lim = (last_start < start) ? start : last_start; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
747 sb = dfa->mb_cur_max == 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
748 match_kind = |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
749 (fastmap |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
750 ? ((sb || !(preg->syntax & RE_ICASE || t) ? 4 : 0) |
|
6186
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
751 | (start <= last_start ? 2 : 0) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
752 | (t != NULL ? 1 : 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
753 : 8); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
754 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
755 for (;; match_first += incr) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
756 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
757 err = REG_NOMATCH; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
758 if (match_first < left_lim || right_lim < match_first) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
759 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
760 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
761 /* Advance as rapidly as possible through the string, until we |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
762 find a plausible place to start matching. This may be done |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
763 with varying efficiency, so there are various possibilities: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
764 only the most common of them are specialized, in order to |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
765 save on code size. We use a switch statement for speed. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
766 switch (match_kind) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
767 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
768 case 8: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
769 /* No fastmap. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
770 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
771 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
772 case 7: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
773 /* Fastmap with single-byte translation, match forward. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
774 while (BE (match_first < right_lim, 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
775 && !fastmap[t[(unsigned char) string[match_first]]]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
776 ++match_first; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
777 goto forward_match_found_start_or_reached_end; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
778 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
779 case 6: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
780 /* Fastmap without translation, match forward. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
781 while (BE (match_first < right_lim, 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
782 && !fastmap[(unsigned char) string[match_first]]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
783 ++match_first; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
784 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
785 forward_match_found_start_or_reached_end: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
786 if (BE (match_first == right_lim, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
787 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
788 ch = match_first >= length |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
789 ? 0 : (unsigned char) string[match_first]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
790 if (!fastmap[t ? t[ch] : ch]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
791 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
792 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
793 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
794 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
795 case 4: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
796 case 5: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
797 /* Fastmap without multi-byte translation, match backwards. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
798 while (match_first >= left_lim) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
799 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
800 ch = match_first >= length |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
801 ? 0 : (unsigned char) string[match_first]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
802 if (fastmap[t ? t[ch] : ch]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
803 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
804 --match_first; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
805 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
806 if (match_first < left_lim) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
807 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
808 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
809 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
810 default: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
811 /* In this case, we can't determine easily the current byte, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
812 since it might be a component byte of a multibyte |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
813 character. Then we use the constructed buffer instead. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
814 for (;;) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
815 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
816 /* If MATCH_FIRST is out of the valid range, reconstruct the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
817 buffers. */ |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
818 __re_size_t offset = match_first - mctx.input.raw_mbs_idx; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
819 if (BE (offset >= (__re_size_t) mctx.input.valid_raw_len, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
820 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
821 err = re_string_reconstruct (&mctx.input, match_first, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
822 eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
823 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
824 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
825 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
826 offset = match_first - mctx.input.raw_mbs_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
827 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
828 /* If MATCH_FIRST is out of the buffer, leave it as '\0'. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
829 Note that MATCH_FIRST must not be smaller than 0. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
830 ch = (match_first >= length |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
831 ? 0 : re_string_byte_at (&mctx.input, offset)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
832 if (fastmap[ch]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
833 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
834 match_first += incr; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
835 if (match_first < left_lim || match_first > right_lim) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
836 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
837 err = REG_NOMATCH; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
838 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
839 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
840 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
841 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
842 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
843 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
844 /* Reconstruct the buffers so that the matcher can assume that |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
845 the matching starts from the beginning of the buffer. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
846 err = re_string_reconstruct (&mctx.input, match_first, eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
847 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
848 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
849 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
850 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
851 /* Don't consider this char as a possible match start if it part, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
852 yet isn't the head, of a multibyte character. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
853 if (!sb && !re_string_first_byte (&mctx.input, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
854 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
855 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
856 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
857 /* It seems to be appropriate one, then use the matcher. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
858 /* We assume that the matching starts from 0. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
859 mctx.state_log_top = mctx.nbkref_ents = mctx.max_mb_elem_len = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
860 match_last = check_matching (&mctx, fl_longest_match, |
|
6186
7a0537a5ad1b
* lib/regex_internal.c (re_string_reconstruct): Don't assume buffer
Paul Eggert <eggert@cs.ucla.edu>
parents:
6185
diff
changeset
|
861 start <= last_start ? &match_first : NULL); |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
862 if (match_last != REG_MISSING) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
863 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
864 if (BE (match_last == REG_ERROR, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
865 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
866 err = REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
867 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
868 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
869 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
870 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
871 mctx.match_last = match_last; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
872 if ((!preg->no_sub && nmatch > 1) || dfa->nbackref) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
873 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
874 re_dfastate_t *pstate = mctx.state_log[match_last]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
875 mctx.last_node = check_halt_state_context (&mctx, pstate, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
876 match_last); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
877 } |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
878 if ((!preg->no_sub && nmatch > 1 && dfa->has_plural_match) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
879 || dfa->nbackref) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
880 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
881 err = prune_impossible_nodes (&mctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
882 if (err == REG_NOERROR) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
883 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
884 if (BE (err != REG_NOMATCH, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
885 goto free_return; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
886 match_last = REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
887 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
888 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
889 break; /* We found a match. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
890 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
891 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
892 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
893 match_ctx_clean (&mctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
894 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
895 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
896 #ifdef DEBUG |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
897 assert (match_last != REG_MISSING); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
898 assert (err == REG_NOERROR); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
899 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
900 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
901 /* Set pmatch[] if we need. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
902 if (nmatch > 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
903 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
904 Idx reg_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
905 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
906 /* Initialize registers. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
907 for (reg_idx = 1; reg_idx < nmatch; ++reg_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
908 pmatch[reg_idx].rm_so = pmatch[reg_idx].rm_eo = -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
909 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
910 /* Set the points where matching start/end. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
911 pmatch[0].rm_so = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
912 pmatch[0].rm_eo = mctx.match_last; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
913 /* FIXME: This function should fail if mctx.match_last exceeds |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
914 the maximum possible regoff_t value. We need a new error |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
915 code REG_OVERFLOW. */ |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
916 |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
917 if (!preg->no_sub && nmatch > 1) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
918 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
919 err = set_regs (preg, &mctx, nmatch, pmatch, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
920 dfa->has_plural_match && dfa->nbackref > 0); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
921 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
922 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
923 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
924 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
925 /* At last, add the offset to the each registers, since we slided |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
926 the buffers so that we could assume that the matching starts |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
927 from 0. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
928 for (reg_idx = 0; reg_idx < nmatch; ++reg_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
929 if (pmatch[reg_idx].rm_so != -1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
930 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
931 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
932 if (BE (mctx.input.offsets_needed != 0, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
933 { |
|
6173
0728607db20f
* lib/regexec.c (re_search_internal): Simplify update of
Paul Eggert <eggert@cs.ucla.edu>
parents:
6171
diff
changeset
|
934 pmatch[reg_idx].rm_so = |
|
0728607db20f
* lib/regexec.c (re_search_internal): Simplify update of
Paul Eggert <eggert@cs.ucla.edu>
parents:
6171
diff
changeset
|
935 (pmatch[reg_idx].rm_so == mctx.input.valid_len |
|
0728607db20f
* lib/regexec.c (re_search_internal): Simplify update of
Paul Eggert <eggert@cs.ucla.edu>
parents:
6171
diff
changeset
|
936 ? mctx.input.valid_raw_len |
|
0728607db20f
* lib/regexec.c (re_search_internal): Simplify update of
Paul Eggert <eggert@cs.ucla.edu>
parents:
6171
diff
changeset
|
937 : mctx.input.offsets[pmatch[reg_idx].rm_so]); |
|
0728607db20f
* lib/regexec.c (re_search_internal): Simplify update of
Paul Eggert <eggert@cs.ucla.edu>
parents:
6171
diff
changeset
|
938 pmatch[reg_idx].rm_eo = |
|
0728607db20f
* lib/regexec.c (re_search_internal): Simplify update of
Paul Eggert <eggert@cs.ucla.edu>
parents:
6171
diff
changeset
|
939 (pmatch[reg_idx].rm_eo == mctx.input.valid_len |
|
0728607db20f
* lib/regexec.c (re_search_internal): Simplify update of
Paul Eggert <eggert@cs.ucla.edu>
parents:
6171
diff
changeset
|
940 ? mctx.input.valid_raw_len |
|
0728607db20f
* lib/regexec.c (re_search_internal): Simplify update of
Paul Eggert <eggert@cs.ucla.edu>
parents:
6171
diff
changeset
|
941 : mctx.input.offsets[pmatch[reg_idx].rm_eo]); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
942 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
943 #else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
944 assert (mctx.input.offsets_needed == 0); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
945 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
946 pmatch[reg_idx].rm_so += match_first; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
947 pmatch[reg_idx].rm_eo += match_first; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
948 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
949 for (reg_idx = 0; reg_idx < extra_nmatch; ++reg_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
950 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
951 pmatch[nmatch + reg_idx].rm_so = -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
952 pmatch[nmatch + reg_idx].rm_eo = -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
953 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
954 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
955 if (dfa->subexp_map) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
956 for (reg_idx = 0; reg_idx + 1 < nmatch; reg_idx++) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
957 if (dfa->subexp_map[reg_idx] != reg_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
958 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
959 pmatch[reg_idx + 1].rm_so |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
960 = pmatch[dfa->subexp_map[reg_idx] + 1].rm_so; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
961 pmatch[reg_idx + 1].rm_eo |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
962 = pmatch[dfa->subexp_map[reg_idx] + 1].rm_eo; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
963 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
964 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
965 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
966 free_return: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
967 re_free (mctx.state_log); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
968 if (dfa->nbackref) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
969 match_ctx_free (&mctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
970 re_string_destruct (&mctx.input); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
971 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
972 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
973 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
974 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
975 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
976 prune_impossible_nodes (re_match_context_t *mctx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
977 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
978 const re_dfa_t *const dfa = mctx->dfa; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
979 Idx halt_node, match_last; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
980 reg_errcode_t ret; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
981 re_dfastate_t **sifted_states; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
982 re_dfastate_t **lim_states = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
983 re_sift_context_t sctx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
984 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
985 assert (mctx->state_log != NULL); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
986 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
987 match_last = mctx->match_last; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
988 halt_node = mctx->last_node; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
989 |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
990 /* Avoid overflow. */ |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
991 if (BE (SIZE_MAX / sizeof (re_dfastate_t *) <= match_last, 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
992 return REG_ESPACE; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
993 |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
994 sifted_states = re_malloc (re_dfastate_t *, match_last + 1); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
995 if (BE (sifted_states == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
996 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
997 ret = REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
998 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
999 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1000 if (dfa->nbackref) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1001 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1002 lim_states = re_malloc (re_dfastate_t *, match_last + 1); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1003 if (BE (lim_states == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1004 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1005 ret = REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1006 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1007 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1008 while (1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1009 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1010 memset (lim_states, '\0', |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1011 sizeof (re_dfastate_t *) * (match_last + 1)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1012 sift_ctx_init (&sctx, sifted_states, lim_states, halt_node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1013 match_last); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1014 ret = sift_states_backward (mctx, &sctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1015 re_node_set_free (&sctx.limits); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1016 if (BE (ret != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1017 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1018 if (sifted_states[0] != NULL || lim_states[0] != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1019 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1020 do |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1021 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1022 --match_last; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1023 if (! REG_VALID_INDEX (match_last)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1024 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1025 ret = REG_NOMATCH; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1026 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1027 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1028 } while (mctx->state_log[match_last] == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1029 || !mctx->state_log[match_last]->halt); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1030 halt_node = check_halt_state_context (mctx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1031 mctx->state_log[match_last], |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1032 match_last); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1033 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1034 ret = merge_state_array (dfa, sifted_states, lim_states, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1035 match_last + 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1036 re_free (lim_states); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1037 lim_states = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1038 if (BE (ret != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1039 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1040 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1041 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1042 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1043 sift_ctx_init (&sctx, sifted_states, lim_states, halt_node, match_last); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1044 ret = sift_states_backward (mctx, &sctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1045 re_node_set_free (&sctx.limits); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1046 if (BE (ret != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1047 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1048 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1049 re_free (mctx->state_log); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1050 mctx->state_log = sifted_states; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1051 sifted_states = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1052 mctx->last_node = halt_node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1053 mctx->match_last = match_last; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1054 ret = REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1055 free_return: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1056 re_free (sifted_states); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1057 re_free (lim_states); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1058 return ret; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1059 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1060 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1061 /* Acquire an initial state and return it. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1062 We must select appropriate initial state depending on the context, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1063 since initial states may have constraints like "\<", "^", etc.. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1064 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1065 static inline re_dfastate_t * |
|
6084
87075d885cc5
* config/srclist.txt: Add glibc bug 1231.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6082
diff
changeset
|
1066 __attribute ((always_inline)) internal_function |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1067 acquire_init_state_context (reg_errcode_t *err, const re_match_context_t *mctx, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1068 Idx idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1069 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1070 const re_dfa_t *const dfa = mctx->dfa; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1071 if (dfa->init_state->has_constraint) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1072 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1073 unsigned int context; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1074 context = re_string_context_at (&mctx->input, idx - 1, mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1075 if (IS_WORD_CONTEXT (context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1076 return dfa->init_state_word; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1077 else if (IS_ORDINARY_CONTEXT (context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1078 return dfa->init_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1079 else if (IS_BEGBUF_CONTEXT (context) && IS_NEWLINE_CONTEXT (context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1080 return dfa->init_state_begbuf; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1081 else if (IS_NEWLINE_CONTEXT (context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1082 return dfa->init_state_nl; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1083 else if (IS_BEGBUF_CONTEXT (context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1084 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1085 /* It is relatively rare case, then calculate on demand. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1086 return re_acquire_state_context (err, dfa, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1087 dfa->init_state->entrance_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1088 context); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1089 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1090 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1091 /* Must not happen? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1092 return dfa->init_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1093 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1094 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1095 return dfa->init_state; |
|
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1096 } |
|
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|
1097 |
|
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|
1098 /* Check whether the regular expression match input string INPUT or not, |
|
6184
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1099 and return the index where the matching end. Return REG_MISSING if |
|
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|
1100 there is no match, and return REG_ERROR in case of an error. |
|
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|
1101 FL_LONGEST_MATCH means we want the POSIX longest matching. |
|
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|
1102 If P_MATCH_FIRST is not NULL, and the match fails, it is set to the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1103 next place where we may want to try matching. |
|
541fed6ae301
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|
1104 Note that the matcher assume that the maching starts from the current |
|
541fed6ae301
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|
1105 index of the buffer. */ |
|
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|
1106 |
|
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|
1107 static Idx |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
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|
1108 internal_function |
|
6195
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Use bool where appropriate.
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|
1109 check_matching (re_match_context_t *mctx, bool fl_longest_match, |
|
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|
1110 Idx *p_match_first) |
|
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|
1111 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
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|
1112 const re_dfa_t *const dfa = mctx->dfa; |
|
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|
1113 reg_errcode_t err; |
|
6184
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|
1114 Idx match = 0; |
|
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1115 Idx match_last = REG_MISSING; |
|
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|
1116 Idx cur_str_idx = re_string_cur_idx (&mctx->input); |
|
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|
1117 re_dfastate_t *cur_state; |
|
6195
25eaa608fc4e
Use bool where appropriate.
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|
1118 bool at_init_state = p_match_first != NULL; |
|
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|
1119 Idx next_start_idx = cur_str_idx; |
|
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|
1120 |
|
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|
1121 err = REG_NOERROR; |
|
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parents:
diff
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|
1122 cur_state = acquire_init_state_context (&err, mctx, cur_str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1123 /* An initial state must not be NULL (invalid). */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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changeset
|
1124 if (BE (cur_state == NULL, 0)) |
|
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|
1125 { |
|
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|
1126 assert (err == REG_ESPACE); |
|
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|
1127 return REG_ERROR; |
|
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|
1128 } |
|
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|
1129 |
|
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|
1130 if (mctx->state_log != NULL) |
|
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|
1131 { |
|
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|
1132 mctx->state_log[cur_str_idx] = cur_state; |
|
541fed6ae301
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|
1133 |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1134 /* Check OP_OPEN_SUBEXP in the initial state in case that we use them |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1135 later. E.g. Processing back references. */ |
|
541fed6ae301
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diff
changeset
|
1136 if (BE (dfa->nbackref, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1137 { |
|
6195
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Use bool where appropriate.
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|
1138 at_init_state = false; |
|
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parents:
diff
changeset
|
1139 err = check_subexp_matching_top (mctx, &cur_state->nodes, 0); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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changeset
|
1140 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1141 return err; |
|
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diff
changeset
|
1142 |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1143 if (cur_state->has_backref) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1144 { |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
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|
1145 err = transit_state_bkref (mctx, &cur_state->nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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changeset
|
1146 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
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|
1147 return err; |
|
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parents:
diff
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|
1148 } |
|
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|
1149 } |
|
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|
1150 } |
|
541fed6ae301
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|
1151 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1152 /* If the RE accepts NULL string. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1153 if (BE (cur_state->halt, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1154 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1155 if (!cur_state->has_constraint |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
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|
1156 || check_halt_state_context (mctx, cur_state, cur_str_idx)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1157 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1158 if (!fl_longest_match) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1159 return cur_str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1160 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1161 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1162 match_last = cur_str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1163 match = 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1164 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1165 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1166 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1167 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1168 while (!re_string_eoi (&mctx->input)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1169 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
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|
1170 re_dfastate_t *old_state = cur_state; |
|
6184
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|
1171 Idx next_char_idx = re_string_cur_idx (&mctx->input) + 1; |
|
5968
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diff
changeset
|
1172 |
|
541fed6ae301
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parents:
diff
changeset
|
1173 if (BE (next_char_idx >= mctx->input.bufs_len, 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1174 || (BE (next_char_idx >= mctx->input.valid_len, 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1175 && mctx->input.valid_len < mctx->input.len)) |
|
541fed6ae301
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parents:
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|
1176 { |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1177 err = extend_buffers (mctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1178 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
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|
1179 { |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
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|
1180 assert (err == REG_ESPACE); |
|
6184
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|
1181 return REG_ERROR; |
|
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|
1182 } |
|
541fed6ae301
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|
1183 } |
|
541fed6ae301
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diff
changeset
|
1184 |
|
541fed6ae301
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diff
changeset
|
1185 cur_state = transit_state (&err, mctx, cur_state); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1186 if (mctx->state_log != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1187 cur_state = merge_state_with_log (&err, mctx, cur_state); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1188 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1189 if (cur_state == NULL) |
|
541fed6ae301
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parents:
diff
changeset
|
1190 { |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1191 /* Reached the invalid state or an error. Try to recover a valid |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1192 state using the state log, if available and if we have not |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1193 already found a valid (even if not the longest) match. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1194 if (BE (err != REG_NOERROR, 0)) |
|
6184
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
1195 return REG_ERROR; |
|
5968
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parents:
diff
changeset
|
1196 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1197 if (mctx->state_log == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1198 || (match && !fl_longest_match) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1199 || (cur_state = find_recover_state (&err, mctx)) == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1200 break; |
|
541fed6ae301
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diff
changeset
|
1201 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1202 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1203 if (BE (at_init_state, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1204 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1205 if (old_state == cur_state) |
|
541fed6ae301
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|
1206 next_start_idx = next_char_idx; |
|
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|
1207 else |
|
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|
1208 at_init_state = false; |
|
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|
1209 } |
|
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|
1210 |
|
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|
1211 if (cur_state->halt) |
|
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|
1212 { |
|
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|
1213 /* Reached a halt state. |
|
541fed6ae301
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diff
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|
1214 Check the halt state can satisfy the current context. */ |
|
541fed6ae301
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diff
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|
1215 if (!cur_state->has_constraint |
|
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|
1216 || check_halt_state_context (mctx, cur_state, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1217 re_string_cur_idx (&mctx->input))) |
|
541fed6ae301
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|
1218 { |
|
541fed6ae301
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diff
changeset
|
1219 /* We found an appropriate halt state. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1220 match_last = re_string_cur_idx (&mctx->input); |
|
541fed6ae301
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|
1221 match = 1; |
|
541fed6ae301
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|
1222 |
|
541fed6ae301
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diff
changeset
|
1223 /* We found a match, do not modify match_first below. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
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diff
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|
1224 p_match_first = NULL; |
|
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* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
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diff
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|
1225 if (!fl_longest_match) |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1226 break; |
|
541fed6ae301
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|
1227 } |
|
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diff
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|
1228 } |
|
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|
1229 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1230 |
|
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Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
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|
1231 if (p_match_first) |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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|
1232 *p_match_first += next_start_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1233 |
|
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diff
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|
1234 return match_last; |
|
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Paul Eggert <eggert@cs.ucla.edu>
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|
1235 } |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1236 |
|
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parents:
diff
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|
1237 /* Check NODE match the current context. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1238 |
|
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|
1239 static bool |
|
6076
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* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
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6069
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|
1240 internal_function |
|
6184
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
1241 check_halt_node_context (const re_dfa_t *dfa, Idx node, unsigned int context) |
|
5968
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Paul Eggert <eggert@cs.ucla.edu>
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|
1242 { |
|
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parents:
diff
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|
1243 re_token_type_t type = dfa->nodes[node].type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1244 unsigned int constraint = dfa->nodes[node].constraint; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1245 if (type != END_OF_RE) |
|
6195
25eaa608fc4e
Use bool where appropriate.
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|
1246 return false; |
|
5968
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1247 if (!constraint) |
|
6195
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|
1248 return true; |
|
5968
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diff
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|
1249 if (NOT_SATISFY_NEXT_CONSTRAINT (constraint, context)) |
|
6195
25eaa608fc4e
Use bool where appropriate.
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|
1250 return false; |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
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6186
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|
1251 return true; |
|
5968
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Paul Eggert <eggert@cs.ucla.edu>
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diff
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|
1252 } |
|
541fed6ae301
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diff
changeset
|
1253 |
|
541fed6ae301
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parents:
diff
changeset
|
1254 /* Check the halt state STATE match the current context. |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
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|
1255 Return 0 if not match, if the node, STATE has, is a halt node and |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1256 match the context, return the node. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
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diff
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|
1257 |
|
6184
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
1258 static Idx |
|
6076
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* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
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6069
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|
1259 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
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|
1260 check_halt_state_context (const re_match_context_t *mctx, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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diff
changeset
|
1261 const re_dfastate_t *state, Idx idx) |
|
5968
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Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
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|
1262 { |
|
6184
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
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diff
changeset
|
1263 Idx i; |
|
5968
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* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1264 unsigned int context; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1265 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1266 assert (state->halt); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1267 #endif |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1268 context = re_string_context_at (&mctx->input, idx, mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1269 for (i = 0; i < state->nodes.nelem; ++i) |
|
541fed6ae301
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Paul Eggert <eggert@cs.ucla.edu>
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diff
changeset
|
1270 if (check_halt_node_context (mctx->dfa, state->nodes.elems[i], context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1271 return state->nodes.elems[i]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1272 return 0; |
|
541fed6ae301
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Paul Eggert <eggert@cs.ucla.edu>
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diff
changeset
|
1273 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1274 |
|
541fed6ae301
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parents:
diff
changeset
|
1275 /* Compute the next node to which "NFA" transit from NODE("NFA" is a NFA |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1276 corresponding to the DFA). |
|
6184
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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changeset
|
1277 Return the destination node, and update EPS_VIA_NODES; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
1278 return REG_MISSING in case of errors. */ |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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diff
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|
1279 |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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parents:
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diff
changeset
|
1280 static Idx |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
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6069
diff
changeset
|
1281 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1282 proceed_next_node (const re_match_context_t *mctx, Idx nregs, regmatch_t *regs, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1283 Idx *pidx, Idx node, re_node_set *eps_via_nodes, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
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parents:
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changeset
|
1284 struct re_fail_stack_t *fs) |
|
5968
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* modules/regex (Files): Add lib/regex_internal.c,
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changeset
|
1285 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
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parents:
6236
diff
changeset
|
1286 const re_dfa_t *const dfa = mctx->dfa; |
|
6184
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changeset
|
1287 Idx i; |
|
6195
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|
1288 bool ok; |
|
5968
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diff
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|
1289 if (IS_EPSILON_NODE (dfa->nodes[node].type)) |
|
541fed6ae301
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changeset
|
1290 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1291 re_node_set *cur_nodes = &mctx->state_log[*pidx]->nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1292 re_node_set *edests = &dfa->edests[node]; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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changeset
|
1293 Idx dest_node; |
|
6195
25eaa608fc4e
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|
1294 ok = re_node_set_insert (eps_via_nodes, node); |
|
25eaa608fc4e
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6186
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|
1295 if (BE (! ok, 0)) |
|
6184
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|
1296 return REG_ERROR; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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diff
changeset
|
1297 /* Pick up a valid destination, or return REG_MISSING if none |
|
f1728546eca4
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diff
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|
1298 is found. */ |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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changeset
|
1299 for (dest_node = REG_MISSING, i = 0; i < edests->nelem; ++i) |
|
5968
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diff
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|
1300 { |
|
6184
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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changeset
|
1301 Idx candidate = edests->elems[i]; |
|
5968
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diff
changeset
|
1302 if (!re_node_set_contains (cur_nodes, candidate)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1303 continue; |
|
6184
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|
1304 if (dest_node == REG_MISSING) |
|
5968
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diff
changeset
|
1305 dest_node = candidate; |
|
541fed6ae301
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diff
changeset
|
1306 |
|
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diff
changeset
|
1307 else |
|
541fed6ae301
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changeset
|
1308 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1309 /* In order to avoid infinite loop like "(a*)*", return the second |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1310 epsilon-transition if the first was already considered. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1311 if (re_node_set_contains (eps_via_nodes, dest_node)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1312 return candidate; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1313 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1314 /* Otherwise, push the second epsilon-transition on the fail stack. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1315 else if (fs != NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1316 && push_fail_stack (fs, *pidx, candidate, nregs, regs, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1317 eps_via_nodes)) |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1318 return REG_ERROR; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1319 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1320 /* We know we are going to exit. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1321 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1322 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1323 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1324 return dest_node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1325 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1326 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1327 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1328 Idx naccepted = 0; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1329 re_token_type_t type = dfa->nodes[node].type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1330 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1331 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1332 if (dfa->nodes[node].accept_mb) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1333 naccepted = check_node_accept_bytes (dfa, node, &mctx->input, *pidx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1334 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1335 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1336 if (type == OP_BACK_REF) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1337 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1338 Idx subexp_idx = dfa->nodes[node].opr.idx + 1; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1339 naccepted = regs[subexp_idx].rm_eo - regs[subexp_idx].rm_so; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1340 if (fs != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1341 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1342 if (regs[subexp_idx].rm_so == -1 || regs[subexp_idx].rm_eo == -1) |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1343 return REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1344 else if (naccepted) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1345 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1346 char *buf = (char *) re_string_get_buffer (&mctx->input); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1347 if (memcmp (buf + regs[subexp_idx].rm_so, buf + *pidx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1348 naccepted) != 0) |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1349 return REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1350 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1351 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1352 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1353 if (naccepted == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1354 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1355 Idx dest_node; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
1356 ok = re_node_set_insert (eps_via_nodes, node); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
1357 if (BE (! ok, 0)) |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1358 return REG_ERROR; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1359 dest_node = dfa->edests[node].elems[0]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1360 if (re_node_set_contains (&mctx->state_log[*pidx]->nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1361 dest_node)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1362 return dest_node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1363 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1364 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1365 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1366 if (naccepted != 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1367 || check_node_accept (mctx, dfa->nodes + node, *pidx)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1368 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1369 Idx dest_node = dfa->nexts[node]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1370 *pidx = (naccepted == 0) ? *pidx + 1 : *pidx + naccepted; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1371 if (fs && (*pidx > mctx->match_last || mctx->state_log[*pidx] == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1372 || !re_node_set_contains (&mctx->state_log[*pidx]->nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1373 dest_node))) |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1374 return REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1375 re_node_set_empty (eps_via_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1376 return dest_node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1377 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1378 } |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1379 return REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1380 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1381 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1382 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1383 internal_function |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1384 push_fail_stack (struct re_fail_stack_t *fs, Idx str_idx, Idx dest_node, |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1385 Idx nregs, regmatch_t *regs, re_node_set *eps_via_nodes) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1386 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1387 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1388 Idx num = fs->num++; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1389 if (fs->num == fs->alloc) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1390 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1391 struct re_fail_stack_ent_t *new_array; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1392 new_array = realloc (fs->stack, (sizeof (struct re_fail_stack_ent_t) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1393 * fs->alloc * 2)); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1394 if (new_array == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1395 return REG_ESPACE; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1396 fs->alloc *= 2; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1397 fs->stack = new_array; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1398 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1399 fs->stack[num].idx = str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1400 fs->stack[num].node = dest_node; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1401 fs->stack[num].regs = re_malloc (regmatch_t, nregs); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1402 if (fs->stack[num].regs == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1403 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1404 memcpy (fs->stack[num].regs, regs, sizeof (regmatch_t) * nregs); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1405 err = re_node_set_init_copy (&fs->stack[num].eps_via_nodes, eps_via_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1406 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1407 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1408 |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1409 static Idx |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1410 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1411 pop_fail_stack (struct re_fail_stack_t *fs, Idx *pidx, Idx nregs, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1412 regmatch_t *regs, re_node_set *eps_via_nodes) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1413 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1414 Idx num = --fs->num; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1415 assert (REG_VALID_INDEX (num)); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1416 *pidx = fs->stack[num].idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1417 memcpy (regs, fs->stack[num].regs, sizeof (regmatch_t) * nregs); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1418 re_node_set_free (eps_via_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1419 re_free (fs->stack[num].regs); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1420 *eps_via_nodes = fs->stack[num].eps_via_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1421 return fs->stack[num].node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1422 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1423 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1424 /* Set the positions where the subexpressions are starts/ends to registers |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1425 PMATCH. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1426 Note: We assume that pmatch[0] is already set, and |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1427 pmatch[i].rm_so == pmatch[i].rm_eo == -1 for 0 < i < nmatch. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1428 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1429 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1430 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1431 set_regs (const regex_t *preg, const re_match_context_t *mctx, size_t nmatch, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1432 regmatch_t *pmatch, bool fl_backtrack) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1433 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1434 const re_dfa_t *dfa = (const re_dfa_t *) preg->buffer; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1435 Idx idx, cur_node; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1436 re_node_set eps_via_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1437 struct re_fail_stack_t *fs; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1438 struct re_fail_stack_t fs_body = { 0, 2, NULL }; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1439 regmatch_t *prev_idx_match; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
1440 bool prev_idx_match_malloced = false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1441 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1442 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1443 assert (nmatch > 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1444 assert (mctx->state_log != NULL); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1445 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1446 if (fl_backtrack) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1447 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1448 fs = &fs_body; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1449 fs->stack = re_malloc (struct re_fail_stack_ent_t, fs->alloc); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1450 if (fs->stack == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1451 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1452 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1453 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1454 fs = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1455 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1456 cur_node = dfa->init_node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1457 re_node_set_init_empty (&eps_via_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1458 |
|
6125
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1459 if (__libc_use_alloca (nmatch * sizeof (regmatch_t))) |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1460 prev_idx_match = (regmatch_t *) alloca (nmatch * sizeof (regmatch_t)); |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1461 else |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1462 { |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1463 prev_idx_match = re_malloc (regmatch_t, nmatch); |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1464 if (prev_idx_match == NULL) |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1465 { |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1466 free_fail_stack_return (fs); |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1467 return REG_ESPACE; |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1468 } |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
1469 prev_idx_match_malloced = true; |
|
6125
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1470 } |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1471 memcpy (prev_idx_match, pmatch, sizeof (regmatch_t) * nmatch); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1472 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1473 for (idx = pmatch[0].rm_so; idx <= pmatch[0].rm_eo ;) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1474 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1475 update_regs (dfa, pmatch, prev_idx_match, cur_node, idx, nmatch); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1476 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1477 if (idx == pmatch[0].rm_eo && cur_node == mctx->last_node) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1478 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1479 Idx reg_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1480 if (fs) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1481 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1482 for (reg_idx = 0; reg_idx < nmatch; ++reg_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1483 if (pmatch[reg_idx].rm_so > -1 && pmatch[reg_idx].rm_eo == -1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1484 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1485 if (reg_idx == nmatch) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1486 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1487 re_node_set_free (&eps_via_nodes); |
|
6125
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1488 if (prev_idx_match_malloced) |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1489 re_free (prev_idx_match); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1490 return free_fail_stack_return (fs); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1491 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1492 cur_node = pop_fail_stack (fs, &idx, nmatch, pmatch, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1493 &eps_via_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1494 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1495 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1496 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1497 re_node_set_free (&eps_via_nodes); |
|
6125
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1498 if (prev_idx_match_malloced) |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1499 re_free (prev_idx_match); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1500 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1501 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1502 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1503 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1504 /* Proceed to next node. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1505 cur_node = proceed_next_node (mctx, nmatch, pmatch, &idx, cur_node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1506 &eps_via_nodes, fs); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1507 |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1508 if (BE (! REG_VALID_INDEX (cur_node), 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1509 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1510 if (BE (cur_node == REG_ERROR, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1511 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1512 re_node_set_free (&eps_via_nodes); |
|
6125
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1513 if (prev_idx_match_malloced) |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1514 re_free (prev_idx_match); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1515 free_fail_stack_return (fs); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1516 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1517 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1518 if (fs) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1519 cur_node = pop_fail_stack (fs, &idx, nmatch, pmatch, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1520 &eps_via_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1521 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1522 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1523 re_node_set_free (&eps_via_nodes); |
|
6125
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1524 if (prev_idx_match_malloced) |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1525 re_free (prev_idx_match); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1526 return REG_NOMATCH; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1527 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1528 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1529 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1530 re_node_set_free (&eps_via_nodes); |
|
6125
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1531 if (prev_idx_match_malloced) |
|
4af02335816a
* config/srclist.txt: Add glibc bug 1245.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6119
diff
changeset
|
1532 re_free (prev_idx_match); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1533 return free_fail_stack_return (fs); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1534 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1535 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1536 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1537 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1538 free_fail_stack_return (struct re_fail_stack_t *fs) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1539 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1540 if (fs) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1541 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1542 Idx fs_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1543 for (fs_idx = 0; fs_idx < fs->num; ++fs_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1544 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1545 re_node_set_free (&fs->stack[fs_idx].eps_via_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1546 re_free (fs->stack[fs_idx].regs); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1547 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1548 re_free (fs->stack); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1549 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1550 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1551 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1552 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1553 static void |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1554 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1555 update_regs (const re_dfa_t *dfa, regmatch_t *pmatch, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1556 regmatch_t *prev_idx_match, Idx cur_node, Idx cur_idx, Idx nmatch) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1557 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1558 int type = dfa->nodes[cur_node].type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1559 if (type == OP_OPEN_SUBEXP) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1560 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1561 Idx reg_num = dfa->nodes[cur_node].opr.idx + 1; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1562 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1563 /* We are at the first node of this sub expression. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1564 if (reg_num < nmatch) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1565 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1566 pmatch[reg_num].rm_so = cur_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1567 pmatch[reg_num].rm_eo = -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1568 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1569 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1570 else if (type == OP_CLOSE_SUBEXP) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1571 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1572 Idx reg_num = dfa->nodes[cur_node].opr.idx + 1; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1573 if (reg_num < nmatch) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1574 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1575 /* We are at the last node of this sub expression. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1576 if (pmatch[reg_num].rm_so < cur_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1577 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1578 pmatch[reg_num].rm_eo = cur_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1579 /* This is a non-empty match or we are not inside an optional |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1580 subexpression. Accept this right away. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1581 memcpy (prev_idx_match, pmatch, sizeof (regmatch_t) * nmatch); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1582 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1583 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1584 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1585 if (dfa->nodes[cur_node].opt_subexp |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1586 && prev_idx_match[reg_num].rm_so != -1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1587 /* We transited through an empty match for an optional |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1588 subexpression, like (a?)*, and this is not the subexp's |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1589 first match. Copy back the old content of the registers |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1590 so that matches of an inner subexpression are undone as |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1591 well, like in ((a?))*. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1592 memcpy (pmatch, prev_idx_match, sizeof (regmatch_t) * nmatch); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1593 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1594 /* We completed a subexpression, but it may be part of |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1595 an optional one, so do not update PREV_IDX_MATCH. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1596 pmatch[reg_num].rm_eo = cur_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1597 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1598 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1599 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1600 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1601 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1602 /* This function checks the STATE_LOG from the SCTX->last_str_idx to 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1603 and sift the nodes in each states according to the following rules. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1604 Updated state_log will be wrote to STATE_LOG. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1605 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1606 Rules: We throw away the Node `a' in the STATE_LOG[STR_IDX] if... |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1607 1. When STR_IDX == MATCH_LAST(the last index in the state_log): |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1608 If `a' isn't the LAST_NODE and `a' can't epsilon transit to |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1609 the LAST_NODE, we throw away the node `a'. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1610 2. When 0 <= STR_IDX < MATCH_LAST and `a' accepts |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1611 string `s' and transit to `b': |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1612 i. If 'b' isn't in the STATE_LOG[STR_IDX+strlen('s')], we throw |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1613 away the node `a'. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1614 ii. If 'b' is in the STATE_LOG[STR_IDX+strlen('s')] but 'b' is |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1615 thrown away, we throw away the node `a'. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1616 3. When 0 <= STR_IDX < MATCH_LAST and 'a' epsilon transit to 'b': |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1617 i. If 'b' isn't in the STATE_LOG[STR_IDX], we throw away the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1618 node `a'. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1619 ii. If 'b' is in the STATE_LOG[STR_IDX] but 'b' is thrown away, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1620 we throw away the node `a'. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1621 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1622 #define STATE_NODE_CONTAINS(state,node) \ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1623 ((state) != NULL && re_node_set_contains (&(state)->nodes, node)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1624 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1625 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1626 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1627 sift_states_backward (const re_match_context_t *mctx, re_sift_context_t *sctx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1628 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1629 reg_errcode_t err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1630 int null_cnt = 0; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1631 Idx str_idx = sctx->last_str_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1632 re_node_set cur_dest; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1633 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1634 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1635 assert (mctx->state_log != NULL && mctx->state_log[str_idx] != NULL); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1636 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1637 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1638 /* Build sifted state_log[str_idx]. It has the nodes which can epsilon |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1639 transit to the last_node and the last_node itself. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1640 err = re_node_set_init_1 (&cur_dest, sctx->last_node); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1641 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1642 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1643 err = update_cur_sifted_state (mctx, sctx, str_idx, &cur_dest); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1644 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1645 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1646 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1647 /* Then check each states in the state_log. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1648 while (str_idx > 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1649 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1650 /* Update counters. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1651 null_cnt = (sctx->sifted_states[str_idx] == NULL) ? null_cnt + 1 : 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1652 if (null_cnt > mctx->max_mb_elem_len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1653 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1654 memset (sctx->sifted_states, '\0', |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1655 sizeof (re_dfastate_t *) * str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1656 re_node_set_free (&cur_dest); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1657 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1658 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1659 re_node_set_empty (&cur_dest); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1660 --str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1661 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1662 if (mctx->state_log[str_idx]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1663 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1664 err = build_sifted_states (mctx, sctx, str_idx, &cur_dest); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1665 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1666 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1667 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1668 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1669 /* Add all the nodes which satisfy the following conditions: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1670 - It can epsilon transit to a node in CUR_DEST. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1671 - It is in CUR_SRC. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1672 And update state_log. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1673 err = update_cur_sifted_state (mctx, sctx, str_idx, &cur_dest); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1674 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1675 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1676 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1677 err = REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1678 free_return: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1679 re_node_set_free (&cur_dest); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1680 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1681 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1682 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1683 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1684 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1685 build_sifted_states (const re_match_context_t *mctx, re_sift_context_t *sctx, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1686 Idx str_idx, re_node_set *cur_dest) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1687 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1688 const re_dfa_t *const dfa = mctx->dfa; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1689 const re_node_set *cur_src = &mctx->state_log[str_idx]->non_eps_nodes; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1690 Idx i; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1691 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1692 /* Then build the next sifted state. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1693 We build the next sifted state on `cur_dest', and update |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1694 `sifted_states[str_idx]' with `cur_dest'. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1695 Note: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1696 `cur_dest' is the sifted state from `state_log[str_idx + 1]'. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1697 `cur_src' points the node_set of the old `state_log[str_idx]' |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1698 (with the epsilon nodes pre-filtered out). */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1699 for (i = 0; i < cur_src->nelem; i++) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1700 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1701 Idx prev_node = cur_src->elems[i]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1702 int naccepted = 0; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
1703 bool ok; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1704 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1705 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1706 re_token_type_t type = dfa->nodes[prev_node].type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1707 assert (!IS_EPSILON_NODE (type)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1708 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1709 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1710 /* If the node may accept `multi byte'. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1711 if (dfa->nodes[prev_node].accept_mb) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1712 naccepted = sift_states_iter_mb (mctx, sctx, prev_node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1713 str_idx, sctx->last_str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1714 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1715 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1716 /* We don't check backreferences here. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1717 See update_cur_sifted_state(). */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1718 if (!naccepted |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1719 && check_node_accept (mctx, dfa->nodes + prev_node, str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1720 && STATE_NODE_CONTAINS (sctx->sifted_states[str_idx + 1], |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1721 dfa->nexts[prev_node])) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1722 naccepted = 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1723 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1724 if (naccepted == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1725 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1726 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1727 if (sctx->limits.nelem) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1728 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1729 Idx to_idx = str_idx + naccepted; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1730 if (check_dst_limits (mctx, &sctx->limits, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1731 dfa->nexts[prev_node], to_idx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1732 prev_node, str_idx)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1733 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1734 } |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
1735 ok = re_node_set_insert (cur_dest, prev_node); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
1736 if (BE (! ok, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1737 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1738 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1739 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1740 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1741 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1742 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1743 /* Helper functions. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1744 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1745 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1746 internal_function |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1747 clean_state_log_if_needed (re_match_context_t *mctx, Idx next_state_log_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1748 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1749 Idx top = mctx->state_log_top; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1750 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1751 if (next_state_log_idx >= mctx->input.bufs_len |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1752 || (next_state_log_idx >= mctx->input.valid_len |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1753 && mctx->input.valid_len < mctx->input.len)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1754 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1755 reg_errcode_t err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1756 err = extend_buffers (mctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1757 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1758 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1759 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1760 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1761 if (top < next_state_log_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1762 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1763 memset (mctx->state_log + top + 1, '\0', |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1764 sizeof (re_dfastate_t *) * (next_state_log_idx - top)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1765 mctx->state_log_top = next_state_log_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1766 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1767 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1768 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1769 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1770 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1771 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1772 merge_state_array (const re_dfa_t *dfa, re_dfastate_t **dst, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1773 re_dfastate_t **src, Idx num) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1774 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1775 Idx st_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1776 reg_errcode_t err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1777 for (st_idx = 0; st_idx < num; ++st_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1778 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1779 if (dst[st_idx] == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1780 dst[st_idx] = src[st_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1781 else if (src[st_idx] != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1782 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1783 re_node_set merged_set; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1784 err = re_node_set_init_union (&merged_set, &dst[st_idx]->nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1785 &src[st_idx]->nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1786 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1787 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1788 dst[st_idx] = re_acquire_state (&err, dfa, &merged_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1789 re_node_set_free (&merged_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1790 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1791 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1792 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1793 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1794 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1795 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1796 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1797 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1798 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1799 update_cur_sifted_state (const re_match_context_t *mctx, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1800 re_sift_context_t *sctx, Idx str_idx, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1801 re_node_set *dest_nodes) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1802 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1803 const re_dfa_t *const dfa = mctx->dfa; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1804 reg_errcode_t err = REG_NOERROR; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1805 const re_node_set *candidates; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1806 candidates = ((mctx->state_log[str_idx] == NULL) ? NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1807 : &mctx->state_log[str_idx]->nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1808 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1809 if (dest_nodes->nelem == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1810 sctx->sifted_states[str_idx] = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1811 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1812 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1813 if (candidates) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1814 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1815 /* At first, add the nodes which can epsilon transit to a node in |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1816 DEST_NODE. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1817 err = add_epsilon_src_nodes (dfa, dest_nodes, candidates); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1818 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1819 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1820 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1821 /* Then, check the limitations in the current sift_context. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1822 if (sctx->limits.nelem) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1823 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1824 err = check_subexp_limits (dfa, dest_nodes, candidates, &sctx->limits, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1825 mctx->bkref_ents, str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1826 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1827 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1828 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1829 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1830 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1831 sctx->sifted_states[str_idx] = re_acquire_state (&err, dfa, dest_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1832 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1833 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1834 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1835 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1836 if (candidates && mctx->state_log[str_idx]->has_backref) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1837 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1838 err = sift_states_bkref (mctx, sctx, str_idx, candidates); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1839 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1840 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1841 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1842 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1843 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1844 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1845 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1846 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
1847 add_epsilon_src_nodes (const re_dfa_t *dfa, re_node_set *dest_nodes, |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
1848 const re_node_set *candidates) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1849 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1850 reg_errcode_t err = REG_NOERROR; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
1851 Idx i; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1852 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1853 re_dfastate_t *state = re_acquire_state (&err, dfa, dest_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1854 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1855 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1856 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1857 if (!state->inveclosure.alloc) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1858 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1859 err = re_node_set_alloc (&state->inveclosure, dest_nodes->nelem); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1860 if (BE (err != REG_NOERROR, 0)) |
|
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|
1861 return REG_ESPACE; |
|
541fed6ae301
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|
1862 for (i = 0; i < dest_nodes->nelem; i++) |
|
541fed6ae301
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|
1863 re_node_set_merge (&state->inveclosure, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1864 dfa->inveclosures + dest_nodes->elems[i]); |
|
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|
1865 } |
|
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|
1866 return re_node_set_add_intersect (dest_nodes, candidates, |
|
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|
1867 &state->inveclosure); |
|
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|
1868 } |
|
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|
1869 |
|
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|
1870 static reg_errcode_t |
|
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* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
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|
1871 internal_function |
|
6726
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|
1872 sub_epsilon_src_nodes (const re_dfa_t *dfa, Idx node, re_node_set *dest_nodes, |
|
6076
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* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
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6069
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|
1873 const re_node_set *candidates) |
|
5968
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* modules/regex (Files): Add lib/regex_internal.c,
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|
1874 { |
|
6184
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|
1875 Idx ecl_idx; |
|
5968
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Paul Eggert <eggert@cs.ucla.edu>
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diff
changeset
|
1876 reg_errcode_t err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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parents:
diff
changeset
|
1877 re_node_set *inv_eclosure = dfa->inveclosures + node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1878 re_node_set except_nodes; |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1879 re_node_set_init_empty (&except_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1880 for (ecl_idx = 0; ecl_idx < inv_eclosure->nelem; ++ecl_idx) |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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|
1881 { |
|
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|
1882 Idx cur_node = inv_eclosure->elems[ecl_idx]; |
|
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|
1883 if (cur_node == node) |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1884 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1885 if (IS_EPSILON_NODE (dfa->nodes[cur_node].type)) |
|
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|
1886 { |
|
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On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
1887 Idx edst1 = dfa->edests[cur_node].elems[0]; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
1888 Idx edst2 = ((dfa->edests[cur_node].nelem > 1) |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
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|
1889 ? dfa->edests[cur_node].elems[1] : REG_MISSING); |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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|
1890 if ((!re_node_set_contains (inv_eclosure, edst1) |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1891 && re_node_set_contains (dest_nodes, edst1)) |
|
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|
1892 || (REG_VALID_NONZERO_INDEX (edst2) |
|
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diff
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|
1893 && !re_node_set_contains (inv_eclosure, edst2) |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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|
1894 && re_node_set_contains (dest_nodes, edst2))) |
|
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|
1895 { |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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diff
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|
1896 err = re_node_set_add_intersect (&except_nodes, candidates, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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|
1897 dfa->inveclosures + cur_node); |
|
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|
1898 if (BE (err != REG_NOERROR, 0)) |
|
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|
1899 { |
|
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|
1900 re_node_set_free (&except_nodes); |
|
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diff
changeset
|
1901 return err; |
|
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|
1902 } |
|
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|
1903 } |
|
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|
1904 } |
|
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|
1905 } |
|
541fed6ae301
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|
1906 for (ecl_idx = 0; ecl_idx < inv_eclosure->nelem; ++ecl_idx) |
|
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|
1907 { |
|
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|
1908 Idx cur_node = inv_eclosure->elems[ecl_idx]; |
|
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|
1909 if (!re_node_set_contains (&except_nodes, cur_node)) |
|
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|
1910 { |
|
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|
1911 Idx idx = re_node_set_contains (dest_nodes, cur_node) - 1; |
|
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|
1912 re_node_set_remove_at (dest_nodes, idx); |
|
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|
1913 } |
|
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|
1914 } |
|
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|
1915 re_node_set_free (&except_nodes); |
|
541fed6ae301
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|
1916 return REG_NOERROR; |
|
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|
1917 } |
|
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|
1918 |
|
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|
1919 static bool |
|
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|
1920 internal_function |
|
6185
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* lib/regcomp.c (search_duplicated_node): Make first pointer arg
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|
1921 check_dst_limits (const re_match_context_t *mctx, const re_node_set *limits, |
|
6184
f1728546eca4
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|
1922 Idx dst_node, Idx dst_idx, Idx src_node, Idx src_idx) |
|
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|
1923 { |
|
6726
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Merge regex changes from libc, removing some of our
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|
1924 const re_dfa_t *const dfa = mctx->dfa; |
|
6184
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|
1925 Idx lim_idx, src_pos, dst_pos; |
|
f1728546eca4
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|
1926 |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
1927 Idx dst_bkref_idx = search_cur_bkref_entry (mctx, dst_idx); |
|
f1728546eca4
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|
1928 Idx src_bkref_idx = search_cur_bkref_entry (mctx, src_idx); |
|
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|
1929 for (lim_idx = 0; lim_idx < limits->nelem; ++lim_idx) |
|
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|
1930 { |
|
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|
1931 Idx subexp_idx; |
|
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|
1932 struct re_backref_cache_entry *ent; |
|
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|
1933 ent = mctx->bkref_ents + limits->elems[lim_idx]; |
|
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|
1934 subexp_idx = dfa->nodes[ent->node].opr.idx; |
|
541fed6ae301
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|
1935 |
|
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|
1936 dst_pos = check_dst_limits_calc_pos (mctx, limits->elems[lim_idx], |
|
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|
1937 subexp_idx, dst_node, dst_idx, |
|
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|
1938 dst_bkref_idx); |
|
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|
1939 src_pos = check_dst_limits_calc_pos (mctx, limits->elems[lim_idx], |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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|
1940 subexp_idx, src_node, src_idx, |
|
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|
1941 src_bkref_idx); |
|
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|
1942 |
|
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|
1943 /* In case of: |
|
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|
1944 <src> <dst> ( <subexp> ) |
|
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|
1945 ( <subexp> ) <src> <dst> |
|
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changeset
|
1946 ( <subexp1> <src> <subexp2> <dst> <subexp3> ) */ |
|
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|
1947 if (src_pos == dst_pos) |
|
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|
1948 continue; /* This is unrelated limitation. */ |
|
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changeset
|
1949 else |
|
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|
1950 return true; |
|
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|
1951 } |
|
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Use bool where appropriate.
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|
1952 return false; |
|
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|
1953 } |
|
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|
1954 |
|
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changeset
|
1955 static int |
|
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* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
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|
1956 internal_function |
|
6185
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|
1957 check_dst_limits_calc_pos_1 (const re_match_context_t *mctx, int boundaries, |
|
6184
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|
1958 Idx subexp_idx, Idx from_node, Idx bkref_idx) |
|
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|
1959 { |
|
6726
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Merge regex changes from libc, removing some of our
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|
1960 const re_dfa_t *const dfa = mctx->dfa; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
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changeset
|
1961 const re_node_set *eclosures = dfa->eclosures + from_node; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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|
1962 Idx node_idx; |
|
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|
1963 |
|
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changeset
|
1964 /* Else, we are on the boundary: examine the nodes on the epsilon |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
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diff
changeset
|
1965 closure. */ |
|
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* modules/regex (Files): Add lib/regex_internal.c,
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changeset
|
1966 for (node_idx = 0; node_idx < eclosures->nelem; ++node_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
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changeset
|
1967 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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parents:
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|
1968 Idx node = eclosures->elems[node_idx]; |
|
5968
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parents:
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changeset
|
1969 switch (dfa->nodes[node].type) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1970 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1971 case OP_BACK_REF: |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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parents:
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changeset
|
1972 if (bkref_idx != REG_MISSING) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1973 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1974 struct re_backref_cache_entry *ent = mctx->bkref_ents + bkref_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1975 do |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1976 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
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parents:
6174
diff
changeset
|
1977 Idx dst; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
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diff
changeset
|
1978 int cpos; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1979 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1980 if (ent->node != node) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1981 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1982 |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
1983 if (subexp_idx < BITSET_WORD_BITS |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
1984 && !(ent->eps_reachable_subexps_map |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
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parents:
6236
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changeset
|
1985 & ((bitset_word_t) 1 << subexp_idx))) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1986 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1987 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1988 /* Recurse trying to reach the OP_OPEN_SUBEXP and |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1989 OP_CLOSE_SUBEXP cases below. But, if the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1990 destination node is the same node as the source |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1991 node, don't recurse because it would cause an |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1992 infinite loop: a regex that exhibits this behavior |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1993 is ()\1*\1* */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1994 dst = dfa->edests[node].elems[0]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1995 if (dst == from_node) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1996 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1997 if (boundaries & 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1998 return -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
1999 else /* if (boundaries & 2) */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2000 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2001 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2002 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2003 cpos = |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2004 check_dst_limits_calc_pos_1 (mctx, boundaries, subexp_idx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2005 dst, bkref_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2006 if (cpos == -1 /* && (boundaries & 1) */) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2007 return -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2008 if (cpos == 0 && (boundaries & 2)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2009 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2010 |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
2011 if (subexp_idx < BITSET_WORD_BITS) |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2012 ent->eps_reachable_subexps_map |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2013 &= ~((bitset_word_t) 1 << subexp_idx); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2014 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2015 while (ent++->more); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2016 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2017 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2018 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2019 case OP_OPEN_SUBEXP: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2020 if ((boundaries & 1) && subexp_idx == dfa->nodes[node].opr.idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2021 return -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2022 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2023 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2024 case OP_CLOSE_SUBEXP: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2025 if ((boundaries & 2) && subexp_idx == dfa->nodes[node].opr.idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2026 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2027 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2028 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2029 default: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2030 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2031 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2032 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2033 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2034 return (boundaries & 2) ? 1 : 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2035 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2036 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2037 static int |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2038 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2039 check_dst_limits_calc_pos (const re_match_context_t *mctx, Idx limit, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2040 Idx subexp_idx, Idx from_node, Idx str_idx, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2041 Idx bkref_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2042 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2043 struct re_backref_cache_entry *lim = mctx->bkref_ents + limit; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2044 int boundaries; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2045 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2046 /* If we are outside the range of the subexpression, return -1 or 1. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2047 if (str_idx < lim->subexp_from) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2048 return -1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2049 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2050 if (lim->subexp_to < str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2051 return 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2052 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2053 /* If we are within the subexpression, return 0. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2054 boundaries = (str_idx == lim->subexp_from); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2055 boundaries |= (str_idx == lim->subexp_to) << 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2056 if (boundaries == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2057 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2058 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2059 /* Else, examine epsilon closure. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2060 return check_dst_limits_calc_pos_1 (mctx, boundaries, subexp_idx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2061 from_node, bkref_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2062 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2063 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2064 /* Check the limitations of sub expressions LIMITS, and remove the nodes |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2065 which are against limitations from DEST_NODES. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2066 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2067 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2068 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2069 check_subexp_limits (const re_dfa_t *dfa, re_node_set *dest_nodes, |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2070 const re_node_set *candidates, re_node_set *limits, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2071 struct re_backref_cache_entry *bkref_ents, Idx str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2072 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2073 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2074 Idx node_idx, lim_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2075 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2076 for (lim_idx = 0; lim_idx < limits->nelem; ++lim_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2077 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2078 Idx subexp_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2079 struct re_backref_cache_entry *ent; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2080 ent = bkref_ents + limits->elems[lim_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2081 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2082 if (str_idx <= ent->subexp_from || ent->str_idx < str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2083 continue; /* This is unrelated limitation. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2084 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2085 subexp_idx = dfa->nodes[ent->node].opr.idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2086 if (ent->subexp_to == str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2087 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2088 Idx ops_node = REG_MISSING; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2089 Idx cls_node = REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2090 for (node_idx = 0; node_idx < dest_nodes->nelem; ++node_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2091 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2092 Idx node = dest_nodes->elems[node_idx]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2093 re_token_type_t type = dfa->nodes[node].type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2094 if (type == OP_OPEN_SUBEXP |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2095 && subexp_idx == dfa->nodes[node].opr.idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2096 ops_node = node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2097 else if (type == OP_CLOSE_SUBEXP |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2098 && subexp_idx == dfa->nodes[node].opr.idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2099 cls_node = node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2100 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2101 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2102 /* Check the limitation of the open subexpression. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2103 /* Note that (ent->subexp_to = str_idx != ent->subexp_from). */ |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2104 if (REG_VALID_INDEX (ops_node)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2105 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2106 err = sub_epsilon_src_nodes (dfa, ops_node, dest_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2107 candidates); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2108 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2109 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2110 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2111 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2112 /* Check the limitation of the close subexpression. */ |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2113 if (REG_VALID_INDEX (cls_node)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2114 for (node_idx = 0; node_idx < dest_nodes->nelem; ++node_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2115 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2116 Idx node = dest_nodes->elems[node_idx]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2117 if (!re_node_set_contains (dfa->inveclosures + node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2118 cls_node) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2119 && !re_node_set_contains (dfa->eclosures + node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2120 cls_node)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2121 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2122 /* It is against this limitation. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2123 Remove it form the current sifted state. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2124 err = sub_epsilon_src_nodes (dfa, node, dest_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2125 candidates); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2126 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2127 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2128 --node_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2129 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2130 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2131 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2132 else /* (ent->subexp_to != str_idx) */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2133 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2134 for (node_idx = 0; node_idx < dest_nodes->nelem; ++node_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2135 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2136 Idx node = dest_nodes->elems[node_idx]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2137 re_token_type_t type = dfa->nodes[node].type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2138 if (type == OP_CLOSE_SUBEXP || type == OP_OPEN_SUBEXP) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2139 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2140 if (subexp_idx != dfa->nodes[node].opr.idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2141 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2142 /* It is against this limitation. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2143 Remove it form the current sifted state. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2144 err = sub_epsilon_src_nodes (dfa, node, dest_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2145 candidates); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2146 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2147 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2148 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2149 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2150 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2151 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2152 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2153 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2154 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2155 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2156 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2157 sift_states_bkref (const re_match_context_t *mctx, re_sift_context_t *sctx, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2158 Idx str_idx, const re_node_set *candidates) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2159 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2160 const re_dfa_t *const dfa = mctx->dfa; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2161 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2162 Idx node_idx, node; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2163 re_sift_context_t local_sctx; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2164 Idx first_idx = search_cur_bkref_entry (mctx, str_idx); |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2165 |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2166 if (first_idx == REG_MISSING) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2167 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2168 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2169 local_sctx.sifted_states = NULL; /* Mark that it hasn't been initialized. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2170 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2171 for (node_idx = 0; node_idx < candidates->nelem; ++node_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2172 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2173 Idx enabled_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2174 re_token_type_t type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2175 struct re_backref_cache_entry *entry; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2176 node = candidates->elems[node_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2177 type = dfa->nodes[node].type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2178 /* Avoid infinite loop for the REs like "()\1+". */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2179 if (node == sctx->last_node && str_idx == sctx->last_str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2180 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2181 if (type != OP_BACK_REF) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2182 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2183 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2184 entry = mctx->bkref_ents + first_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2185 enabled_idx = first_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2186 do |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2187 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2188 Idx subexp_len; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2189 Idx to_idx; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2190 Idx dst_node; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
2191 bool ok; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2192 re_dfastate_t *cur_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2193 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2194 if (entry->node != node) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2195 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2196 subexp_len = entry->subexp_to - entry->subexp_from; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2197 to_idx = str_idx + subexp_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2198 dst_node = (subexp_len ? dfa->nexts[node] |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2199 : dfa->edests[node].elems[0]); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2200 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2201 if (to_idx > sctx->last_str_idx |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2202 || sctx->sifted_states[to_idx] == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2203 || !STATE_NODE_CONTAINS (sctx->sifted_states[to_idx], dst_node) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2204 || check_dst_limits (mctx, &sctx->limits, node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2205 str_idx, dst_node, to_idx)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2206 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2207 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2208 if (local_sctx.sifted_states == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2209 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2210 local_sctx = *sctx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2211 err = re_node_set_init_copy (&local_sctx.limits, &sctx->limits); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2212 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2213 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2214 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2215 local_sctx.last_node = node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2216 local_sctx.last_str_idx = str_idx; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
2217 ok = re_node_set_insert (&local_sctx.limits, enabled_idx); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
2218 if (BE (! ok, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2219 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2220 err = REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2221 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2222 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2223 cur_state = local_sctx.sifted_states[str_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2224 err = sift_states_backward (mctx, &local_sctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2225 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2226 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2227 if (sctx->limited_states != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2228 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2229 err = merge_state_array (dfa, sctx->limited_states, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2230 local_sctx.sifted_states, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2231 str_idx + 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2232 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2233 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2234 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2235 local_sctx.sifted_states[str_idx] = cur_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2236 re_node_set_remove (&local_sctx.limits, enabled_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2237 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2238 /* mctx->bkref_ents may have changed, reload the pointer. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2239 entry = mctx->bkref_ents + enabled_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2240 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2241 while (enabled_idx++, entry++->more); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2242 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2243 err = REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2244 free_return: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2245 if (local_sctx.sifted_states != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2246 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2247 re_node_set_free (&local_sctx.limits); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2248 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2249 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2250 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2251 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2252 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2253 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2254 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2255 static int |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2256 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2257 sift_states_iter_mb (const re_match_context_t *mctx, re_sift_context_t *sctx, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2258 Idx node_idx, Idx str_idx, Idx max_str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2259 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2260 const re_dfa_t *const dfa = mctx->dfa; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2261 int naccepted; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2262 /* Check the node can accept `multi byte'. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2263 naccepted = check_node_accept_bytes (dfa, node_idx, &mctx->input, str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2264 if (naccepted > 0 && str_idx + naccepted <= max_str_idx && |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2265 !STATE_NODE_CONTAINS (sctx->sifted_states[str_idx + naccepted], |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2266 dfa->nexts[node_idx])) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2267 /* The node can't accept the `multi byte', or the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2268 destination was already thrown away, then the node |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2269 could't accept the current input `multi byte'. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2270 naccepted = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2271 /* Otherwise, it is sure that the node could accept |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2272 `naccepted' bytes input. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2273 return naccepted; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2274 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2275 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2276 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2277 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2278 /* Functions for state transition. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2279 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2280 /* Return the next state to which the current state STATE will transit by |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2281 accepting the current input byte, and update STATE_LOG if necessary. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2282 If STATE can accept a multibyte char/collating element/back reference |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2283 update the destination of STATE_LOG. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2284 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2285 static re_dfastate_t * |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2286 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2287 transit_state (reg_errcode_t *err, re_match_context_t *mctx, |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2288 re_dfastate_t *state) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2289 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2290 re_dfastate_t **trtable; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2291 unsigned char ch; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2292 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2293 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2294 /* If the current state can accept multibyte. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2295 if (BE (state->accept_mb, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2296 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2297 *err = transit_state_mb (mctx, state); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2298 if (BE (*err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2299 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2300 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2301 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2302 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2303 /* Then decide the next state with the single byte. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2304 #if 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2305 if (0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2306 /* don't use transition table */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2307 return transit_state_sb (err, mctx, state); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2308 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2309 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2310 /* Use transition table */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2311 ch = re_string_fetch_byte (&mctx->input); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2312 for (;;) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2313 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2314 trtable = state->trtable; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2315 if (BE (trtable != NULL, 1)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2316 return trtable[ch]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2317 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2318 trtable = state->word_trtable; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2319 if (BE (trtable != NULL, 1)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2320 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2321 unsigned int context; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2322 context |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2323 = re_string_context_at (&mctx->input, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2324 re_string_cur_idx (&mctx->input) - 1, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2325 mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2326 if (IS_WORD_CONTEXT (context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2327 return trtable[ch + SBC_MAX]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2328 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2329 return trtable[ch]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2330 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2331 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2332 if (!build_trtable (mctx->dfa, state)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2333 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2334 *err = REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2335 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2336 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2337 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2338 /* Retry, we now have a transition table. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2339 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2340 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2341 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2342 /* Update the state_log if we need */ |
| 8540 | 2343 static re_dfastate_t * |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2344 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2345 merge_state_with_log (reg_errcode_t *err, re_match_context_t *mctx, |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2346 re_dfastate_t *next_state) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2347 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2348 const re_dfa_t *const dfa = mctx->dfa; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2349 Idx cur_idx = re_string_cur_idx (&mctx->input); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2350 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2351 if (cur_idx > mctx->state_log_top) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2352 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2353 mctx->state_log[cur_idx] = next_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2354 mctx->state_log_top = cur_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2355 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2356 else if (mctx->state_log[cur_idx] == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2357 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2358 mctx->state_log[cur_idx] = next_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2359 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2360 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2361 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2362 re_dfastate_t *pstate; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2363 unsigned int context; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2364 re_node_set next_nodes, *log_nodes, *table_nodes = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2365 /* If (state_log[cur_idx] != 0), it implies that cur_idx is |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2366 the destination of a multibyte char/collating element/ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2367 back reference. Then the next state is the union set of |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2368 these destinations and the results of the transition table. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2369 pstate = mctx->state_log[cur_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2370 log_nodes = pstate->entrance_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2371 if (next_state != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2372 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2373 table_nodes = next_state->entrance_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2374 *err = re_node_set_init_union (&next_nodes, table_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2375 log_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2376 if (BE (*err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2377 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2378 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2379 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2380 next_nodes = *log_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2381 /* Note: We already add the nodes of the initial state, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2382 then we don't need to add them here. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2383 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2384 context = re_string_context_at (&mctx->input, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2385 re_string_cur_idx (&mctx->input) - 1, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2386 mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2387 next_state = mctx->state_log[cur_idx] |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2388 = re_acquire_state_context (err, dfa, &next_nodes, context); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2389 /* We don't need to check errors here, since the return value of |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2390 this function is next_state and ERR is already set. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2391 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2392 if (table_nodes != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2393 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2394 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2395 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2396 if (BE (dfa->nbackref, 0) && next_state != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2397 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2398 /* Check OP_OPEN_SUBEXP in the current state in case that we use them |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2399 later. We must check them here, since the back references in the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2400 next state might use them. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2401 *err = check_subexp_matching_top (mctx, &next_state->nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2402 cur_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2403 if (BE (*err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2404 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2405 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2406 /* If the next state has back references. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2407 if (next_state->has_backref) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2408 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2409 *err = transit_state_bkref (mctx, &next_state->nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2410 if (BE (*err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2411 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2412 next_state = mctx->state_log[cur_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2413 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2414 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2415 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2416 return next_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2417 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2418 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2419 /* Skip bytes in the input that correspond to part of a |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2420 multi-byte match, then look in the log for a state |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2421 from which to restart matching. */ |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2422 static re_dfastate_t * |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2423 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2424 find_recover_state (reg_errcode_t *err, re_match_context_t *mctx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2425 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2426 re_dfastate_t *cur_state; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2427 do |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2428 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2429 Idx max = mctx->state_log_top; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2430 Idx cur_str_idx = re_string_cur_idx (&mctx->input); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2431 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2432 do |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2433 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2434 if (++cur_str_idx > max) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2435 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2436 re_string_skip_bytes (&mctx->input, 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2437 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2438 while (mctx->state_log[cur_str_idx] == NULL); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2439 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2440 cur_state = merge_state_with_log (err, mctx, NULL); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2441 } |
|
6119
c3bf2ea44695
Make regex safe for g++. This fixes one real bug (an "err"
Paul Eggert <eggert@cs.ucla.edu>
parents:
6101
diff
changeset
|
2442 while (*err == REG_NOERROR && cur_state == NULL); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2443 return cur_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2444 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2445 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2446 /* Helper functions for transit_state. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2447 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2448 /* From the node set CUR_NODES, pick up the nodes whose types are |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2449 OP_OPEN_SUBEXP and which have corresponding back references in the regular |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2450 expression. And register them to use them later for evaluating the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2451 correspoding back references. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2452 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2453 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2454 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2455 check_subexp_matching_top (re_match_context_t *mctx, re_node_set *cur_nodes, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2456 Idx str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2457 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2458 const re_dfa_t *const dfa = mctx->dfa; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2459 Idx node_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2460 reg_errcode_t err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2461 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2462 /* TODO: This isn't efficient. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2463 Because there might be more than one nodes whose types are |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2464 OP_OPEN_SUBEXP and whose index is SUBEXP_IDX, we must check all |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2465 nodes. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2466 E.g. RE: (a){2} */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2467 for (node_idx = 0; node_idx < cur_nodes->nelem; ++node_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2468 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2469 Idx node = cur_nodes->elems[node_idx]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2470 if (dfa->nodes[node].type == OP_OPEN_SUBEXP |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
2471 && dfa->nodes[node].opr.idx < BITSET_WORD_BITS |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
2472 && (dfa->used_bkref_map |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2473 & ((bitset_word_t) 1 << dfa->nodes[node].opr.idx))) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2474 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2475 err = match_ctx_add_subtop (mctx, node, str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2476 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2477 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2478 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2479 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2480 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2481 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2482 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2483 #if 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2484 /* Return the next state to which the current state STATE will transit by |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2485 accepting the current input byte. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2486 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2487 static re_dfastate_t * |
|
6174
6039b763ad3c
* lib/regcomp.c (re_comp) [defined _REGEX_RE_COMP || defined _LIBC]:
Paul Eggert <eggert@cs.ucla.edu>
parents:
6173
diff
changeset
|
2488 transit_state_sb (reg_errcode_t *err, re_match_context_t *mctx, |
|
6039b763ad3c
* lib/regcomp.c (re_comp) [defined _REGEX_RE_COMP || defined _LIBC]:
Paul Eggert <eggert@cs.ucla.edu>
parents:
6173
diff
changeset
|
2489 re_dfastate_t *state) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2490 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2491 const re_dfa_t *const dfa = mctx->dfa; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2492 re_node_set next_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2493 re_dfastate_t *next_state; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2494 Idx node_cnt, cur_str_idx = re_string_cur_idx (&mctx->input); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2495 unsigned int context; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2496 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2497 *err = re_node_set_alloc (&next_nodes, state->nodes.nelem + 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2498 if (BE (*err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2499 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2500 for (node_cnt = 0; node_cnt < state->nodes.nelem; ++node_cnt) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2501 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2502 Idx cur_node = state->nodes.elems[node_cnt]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2503 if (check_node_accept (mctx, dfa->nodes + cur_node, cur_str_idx)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2504 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2505 *err = re_node_set_merge (&next_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2506 dfa->eclosures + dfa->nexts[cur_node]); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2507 if (BE (*err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2508 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2509 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2510 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2511 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2512 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2513 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2514 context = re_string_context_at (&mctx->input, cur_str_idx, mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2515 next_state = re_acquire_state_context (err, dfa, &next_nodes, context); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2516 /* We don't need to check errors here, since the return value of |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2517 this function is next_state and ERR is already set. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2518 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2519 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2520 re_string_skip_bytes (&mctx->input, 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2521 return next_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2522 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2523 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2524 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2525 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2526 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2527 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2528 transit_state_mb (re_match_context_t *mctx, re_dfastate_t *pstate) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2529 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2530 const re_dfa_t *const dfa = mctx->dfa; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2531 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2532 Idx i; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2533 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2534 for (i = 0; i < pstate->nodes.nelem; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2535 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2536 re_node_set dest_nodes, *new_nodes; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2537 Idx cur_node_idx = pstate->nodes.elems[i]; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2538 int naccepted; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2539 Idx dest_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2540 unsigned int context; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2541 re_dfastate_t *dest_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2542 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2543 if (!dfa->nodes[cur_node_idx].accept_mb) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2544 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2545 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2546 if (dfa->nodes[cur_node_idx].constraint) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2547 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2548 context = re_string_context_at (&mctx->input, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2549 re_string_cur_idx (&mctx->input), |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2550 mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2551 if (NOT_SATISFY_NEXT_CONSTRAINT (dfa->nodes[cur_node_idx].constraint, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2552 context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2553 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2554 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2555 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2556 /* How many bytes the node can accept? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2557 naccepted = check_node_accept_bytes (dfa, cur_node_idx, &mctx->input, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2558 re_string_cur_idx (&mctx->input)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2559 if (naccepted == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2560 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2561 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2562 /* The node can accepts `naccepted' bytes. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2563 dest_idx = re_string_cur_idx (&mctx->input) + naccepted; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2564 mctx->max_mb_elem_len = ((mctx->max_mb_elem_len < naccepted) ? naccepted |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2565 : mctx->max_mb_elem_len); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2566 err = clean_state_log_if_needed (mctx, dest_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2567 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2568 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2569 #ifdef DEBUG |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2570 assert (dfa->nexts[cur_node_idx] != REG_MISSING); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2571 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2572 new_nodes = dfa->eclosures + dfa->nexts[cur_node_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2573 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2574 dest_state = mctx->state_log[dest_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2575 if (dest_state == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2576 dest_nodes = *new_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2577 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2578 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2579 err = re_node_set_init_union (&dest_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2580 dest_state->entrance_nodes, new_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2581 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2582 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2583 } |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2584 context = re_string_context_at (&mctx->input, dest_idx - 1, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2585 mctx->eflags); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2586 mctx->state_log[dest_idx] |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2587 = re_acquire_state_context (&err, dfa, &dest_nodes, context); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2588 if (dest_state != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2589 re_node_set_free (&dest_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2590 if (BE (mctx->state_log[dest_idx] == NULL && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2591 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2592 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2593 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2594 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2595 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2596 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2597 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2598 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2599 transit_state_bkref (re_match_context_t *mctx, const re_node_set *nodes) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2600 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2601 const re_dfa_t *const dfa = mctx->dfa; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2602 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2603 Idx i; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2604 Idx cur_str_idx = re_string_cur_idx (&mctx->input); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2605 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2606 for (i = 0; i < nodes->nelem; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2607 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2608 Idx dest_str_idx, prev_nelem, bkc_idx; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2609 Idx node_idx = nodes->elems[i]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2610 unsigned int context; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2611 const re_token_t *node = dfa->nodes + node_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2612 re_node_set *new_dest_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2613 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2614 /* Check whether `node' is a backreference or not. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2615 if (node->type != OP_BACK_REF) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2616 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2617 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2618 if (node->constraint) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2619 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2620 context = re_string_context_at (&mctx->input, cur_str_idx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2621 mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2622 if (NOT_SATISFY_NEXT_CONSTRAINT (node->constraint, context)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2623 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2624 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2625 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2626 /* `node' is a backreference. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2627 Check the substring which the substring matched. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2628 bkc_idx = mctx->nbkref_ents; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2629 err = get_subexp (mctx, node_idx, cur_str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2630 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2631 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2632 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2633 /* And add the epsilon closures (which is `new_dest_nodes') of |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2634 the backreference to appropriate state_log. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2635 #ifdef DEBUG |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2636 assert (dfa->nexts[node_idx] != REG_MISSING); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2637 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2638 for (; bkc_idx < mctx->nbkref_ents; ++bkc_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2639 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2640 Idx subexp_len; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2641 re_dfastate_t *dest_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2642 struct re_backref_cache_entry *bkref_ent; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2643 bkref_ent = mctx->bkref_ents + bkc_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2644 if (bkref_ent->node != node_idx || bkref_ent->str_idx != cur_str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2645 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2646 subexp_len = bkref_ent->subexp_to - bkref_ent->subexp_from; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2647 new_dest_nodes = (subexp_len == 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2648 ? dfa->eclosures + dfa->edests[node_idx].elems[0] |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2649 : dfa->eclosures + dfa->nexts[node_idx]); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2650 dest_str_idx = (cur_str_idx + bkref_ent->subexp_to |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2651 - bkref_ent->subexp_from); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2652 context = re_string_context_at (&mctx->input, dest_str_idx - 1, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2653 mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2654 dest_state = mctx->state_log[dest_str_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2655 prev_nelem = ((mctx->state_log[cur_str_idx] == NULL) ? 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2656 : mctx->state_log[cur_str_idx]->nodes.nelem); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2657 /* Add `new_dest_node' to state_log. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2658 if (dest_state == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2659 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2660 mctx->state_log[dest_str_idx] |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2661 = re_acquire_state_context (&err, dfa, new_dest_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2662 context); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2663 if (BE (mctx->state_log[dest_str_idx] == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2664 && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2665 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2666 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2667 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2668 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2669 re_node_set dest_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2670 err = re_node_set_init_union (&dest_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2671 dest_state->entrance_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2672 new_dest_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2673 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2674 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2675 re_node_set_free (&dest_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2676 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2677 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2678 mctx->state_log[dest_str_idx] |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2679 = re_acquire_state_context (&err, dfa, &dest_nodes, context); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2680 re_node_set_free (&dest_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2681 if (BE (mctx->state_log[dest_str_idx] == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2682 && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2683 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2684 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2685 /* We need to check recursively if the backreference can epsilon |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2686 transit. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2687 if (subexp_len == 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2688 && mctx->state_log[cur_str_idx]->nodes.nelem > prev_nelem) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2689 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2690 err = check_subexp_matching_top (mctx, new_dest_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2691 cur_str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2692 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2693 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2694 err = transit_state_bkref (mctx, new_dest_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2695 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2696 goto free_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2697 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2698 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2699 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2700 err = REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2701 free_return: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2702 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2703 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2704 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2705 /* Enumerate all the candidates which the backreference BKREF_NODE can match |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2706 at BKREF_STR_IDX, and register them by match_ctx_add_entry(). |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2707 Note that we might collect inappropriate candidates here. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2708 However, the cost of checking them strictly here is too high, then we |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2709 delay these checking for prune_impossible_nodes(). */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2710 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2711 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2712 internal_function |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2713 get_subexp (re_match_context_t *mctx, Idx bkref_node, Idx bkref_str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2714 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2715 const re_dfa_t *const dfa = mctx->dfa; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2716 Idx subexp_num, sub_top_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2717 const char *buf = (const char *) re_string_get_buffer (&mctx->input); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2718 /* Return if we have already checked BKREF_NODE at BKREF_STR_IDX. */ |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2719 Idx cache_idx = search_cur_bkref_entry (mctx, bkref_str_idx); |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2720 if (cache_idx != REG_MISSING) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2721 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2722 const struct re_backref_cache_entry *entry |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2723 = mctx->bkref_ents + cache_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2724 do |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2725 if (entry->node == bkref_node) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2726 return REG_NOERROR; /* We already checked it. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2727 while (entry++->more); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2728 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2729 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2730 subexp_num = dfa->nodes[bkref_node].opr.idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2731 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2732 /* For each sub expression */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2733 for (sub_top_idx = 0; sub_top_idx < mctx->nsub_tops; ++sub_top_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2734 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2735 reg_errcode_t err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2736 re_sub_match_top_t *sub_top = mctx->sub_tops[sub_top_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2737 re_sub_match_last_t *sub_last; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2738 Idx sub_last_idx, sl_str, bkref_str_off; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2739 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2740 if (dfa->nodes[sub_top->node].opr.idx != subexp_num) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2741 continue; /* It isn't related. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2742 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2743 sl_str = sub_top->str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2744 bkref_str_off = bkref_str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2745 /* At first, check the last node of sub expressions we already |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2746 evaluated. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2747 for (sub_last_idx = 0; sub_last_idx < sub_top->nlasts; ++sub_last_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2748 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2749 regoff_t sl_str_diff; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2750 sub_last = sub_top->lasts[sub_last_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2751 sl_str_diff = sub_last->str_idx - sl_str; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2752 /* The matched string by the sub expression match with the substring |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2753 at the back reference? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2754 if (sl_str_diff > 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2755 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2756 if (BE (bkref_str_off + sl_str_diff > mctx->input.valid_len, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2757 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2758 /* Not enough chars for a successful match. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2759 if (bkref_str_off + sl_str_diff > mctx->input.len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2760 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2761 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2762 err = clean_state_log_if_needed (mctx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2763 bkref_str_off |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2764 + sl_str_diff); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2765 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2766 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2767 buf = (const char *) re_string_get_buffer (&mctx->input); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2768 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2769 if (memcmp (buf + bkref_str_off, buf + sl_str, sl_str_diff) != 0) |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2770 /* We don't need to search this sub expression any more. */ |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2771 break; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2772 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2773 bkref_str_off += sl_str_diff; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2774 sl_str += sl_str_diff; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2775 err = get_subexp_sub (mctx, sub_top, sub_last, bkref_node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2776 bkref_str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2777 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2778 /* Reload buf, since the preceding call might have reallocated |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2779 the buffer. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2780 buf = (const char *) re_string_get_buffer (&mctx->input); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2781 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2782 if (err == REG_NOMATCH) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2783 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2784 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2785 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2786 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2787 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2788 if (sub_last_idx < sub_top->nlasts) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2789 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2790 if (sub_last_idx > 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2791 ++sl_str; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2792 /* Then, search for the other last nodes of the sub expression. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2793 for (; sl_str <= bkref_str_idx; ++sl_str) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2794 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2795 Idx cls_node; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2796 regoff_t sl_str_off; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2797 const re_node_set *nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2798 sl_str_off = sl_str - sub_top->str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2799 /* The matched string by the sub expression match with the substring |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2800 at the back reference? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2801 if (sl_str_off > 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2802 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2803 if (BE (bkref_str_off >= mctx->input.valid_len, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2804 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2805 /* If we are at the end of the input, we cannot match. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2806 if (bkref_str_off >= mctx->input.len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2807 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2808 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2809 err = extend_buffers (mctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2810 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2811 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2812 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2813 buf = (const char *) re_string_get_buffer (&mctx->input); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2814 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2815 if (buf [bkref_str_off++] != buf[sl_str - 1]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2816 break; /* We don't need to search this sub expression |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2817 any more. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2818 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2819 if (mctx->state_log[sl_str] == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2820 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2821 /* Does this state have a ')' of the sub expression? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2822 nodes = &mctx->state_log[sl_str]->nodes; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2823 cls_node = find_subexp_node (dfa, nodes, subexp_num, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2824 OP_CLOSE_SUBEXP); |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2825 if (cls_node == REG_MISSING) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2826 continue; /* No. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2827 if (sub_top->path == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2828 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2829 sub_top->path = calloc (sizeof (state_array_t), |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2830 sl_str - sub_top->str_idx + 1); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2831 if (sub_top->path == NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2832 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2833 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2834 /* Can the OP_OPEN_SUBEXP node arrive the OP_CLOSE_SUBEXP node |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2835 in the current context? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2836 err = check_arrival (mctx, sub_top->path, sub_top->node, |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2837 sub_top->str_idx, cls_node, sl_str, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2838 OP_CLOSE_SUBEXP); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2839 if (err == REG_NOMATCH) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2840 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2841 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2842 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2843 sub_last = match_ctx_add_sublast (sub_top, cls_node, sl_str); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2844 if (BE (sub_last == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2845 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2846 err = get_subexp_sub (mctx, sub_top, sub_last, bkref_node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2847 bkref_str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2848 if (err == REG_NOMATCH) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2849 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2850 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2851 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2852 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2853 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2854 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2855 /* Helper functions for get_subexp(). */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2856 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2857 /* Check SUB_LAST can arrive to the back reference BKREF_NODE at BKREF_STR. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2858 If it can arrive, register the sub expression expressed with SUB_TOP |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2859 and SUB_LAST. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2860 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2861 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2862 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2863 get_subexp_sub (re_match_context_t *mctx, const re_sub_match_top_t *sub_top, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2864 re_sub_match_last_t *sub_last, Idx bkref_node, Idx bkref_str) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2865 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2866 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2867 Idx to_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2868 /* Can the subexpression arrive the back reference? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2869 err = check_arrival (mctx, &sub_last->path, sub_last->node, |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2870 sub_last->str_idx, bkref_node, bkref_str, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2871 OP_OPEN_SUBEXP); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2872 if (err != REG_NOERROR) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2873 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2874 err = match_ctx_add_entry (mctx, bkref_node, bkref_str, sub_top->str_idx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2875 sub_last->str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2876 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2877 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2878 to_idx = bkref_str + sub_last->str_idx - sub_top->str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2879 return clean_state_log_if_needed (mctx, to_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2880 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2881 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2882 /* Find the first node which is '(' or ')' and whose index is SUBEXP_IDX. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2883 Search '(' if FL_OPEN, or search ')' otherwise. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2884 TODO: This function isn't efficient... |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2885 Because there might be more than one nodes whose types are |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2886 OP_OPEN_SUBEXP and whose index is SUBEXP_IDX, we must check all |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2887 nodes. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2888 E.g. RE: (a){2} */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2889 |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2890 static Idx |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2891 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2892 find_subexp_node (const re_dfa_t *dfa, const re_node_set *nodes, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2893 Idx subexp_idx, int type) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2894 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2895 Idx cls_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2896 for (cls_idx = 0; cls_idx < nodes->nelem; ++cls_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2897 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2898 Idx cls_node = nodes->elems[cls_idx]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2899 const re_token_t *node = dfa->nodes + cls_node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2900 if (node->type == type |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2901 && node->opr.idx == subexp_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2902 return cls_node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2903 } |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2904 return REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2905 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2906 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2907 /* Check whether the node TOP_NODE at TOP_STR can arrive to the node |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2908 LAST_NODE at LAST_STR. We record the path onto PATH since it will be |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2909 heavily reused. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2910 Return REG_NOERROR if it can arrive, or REG_NOMATCH otherwise. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2911 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2912 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
2913 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2914 check_arrival (re_match_context_t *mctx, state_array_t *path, Idx top_node, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2915 Idx top_str, Idx last_node, Idx last_str, int type) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2916 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2917 const re_dfa_t *const dfa = mctx->dfa; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2918 reg_errcode_t err = REG_NOERROR; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2919 Idx subexp_num, backup_cur_idx, str_idx, null_cnt; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2920 re_dfastate_t *cur_state = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2921 re_node_set *cur_nodes, next_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2922 re_dfastate_t **backup_state_log; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2923 unsigned int context; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2924 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2925 subexp_num = dfa->nodes[top_node].opr.idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2926 /* Extend the buffer if we need. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2927 if (BE (path->alloc < last_str + mctx->max_mb_elem_len + 1, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2928 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2929 re_dfastate_t **new_array; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
2930 Idx old_alloc = path->alloc; |
|
6206
ca2f5d46eeb6
Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents:
6195
diff
changeset
|
2931 Idx new_alloc = old_alloc + last_str + mctx->max_mb_elem_len + 1; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2932 if (BE (new_alloc < old_alloc, 0) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2933 || BE (SIZE_MAX / sizeof (re_dfastate_t *) < new_alloc, 0)) |
|
6206
ca2f5d46eeb6
Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents:
6195
diff
changeset
|
2934 return REG_ESPACE; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2935 new_array = re_realloc (path->array, re_dfastate_t *, new_alloc); |
|
6206
ca2f5d46eeb6
Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents:
6195
diff
changeset
|
2936 if (BE (new_array == NULL, 0)) |
|
ca2f5d46eeb6
Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents:
6195
diff
changeset
|
2937 return REG_ESPACE; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2938 path->array = new_array; |
|
6206
ca2f5d46eeb6
Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents:
6195
diff
changeset
|
2939 path->alloc = new_alloc; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2940 memset (new_array + old_alloc, '\0', |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2941 sizeof (re_dfastate_t *) * (path->alloc - old_alloc)); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2942 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2943 |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2944 str_idx = path->next_idx ? path->next_idx : top_str; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2945 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2946 /* Temporary modify MCTX. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2947 backup_state_log = mctx->state_log; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2948 backup_cur_idx = mctx->input.cur_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2949 mctx->state_log = path->array; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2950 mctx->input.cur_idx = str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2951 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2952 /* Setup initial node set. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2953 context = re_string_context_at (&mctx->input, str_idx - 1, mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2954 if (str_idx == top_str) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2955 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2956 err = re_node_set_init_1 (&next_nodes, top_node); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2957 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2958 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2959 err = check_arrival_expand_ecl (dfa, &next_nodes, subexp_num, type); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2960 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2961 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2962 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2963 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2964 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2965 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2966 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2967 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2968 cur_state = mctx->state_log[str_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2969 if (cur_state && cur_state->has_backref) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2970 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2971 err = re_node_set_init_copy (&next_nodes, &cur_state->nodes); |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2972 if (BE (err != REG_NOERROR, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2973 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2974 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2975 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2976 re_node_set_init_empty (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2977 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2978 if (str_idx == top_str || (cur_state && cur_state->has_backref)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2979 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2980 if (next_nodes.nelem) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2981 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2982 err = expand_bkref_cache (mctx, &next_nodes, str_idx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2983 subexp_num, type); |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
2984 if (BE (err != REG_NOERROR, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2985 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2986 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2987 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2988 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2989 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2990 cur_state = re_acquire_state_context (&err, dfa, &next_nodes, context); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2991 if (BE (cur_state == NULL && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2992 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2993 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2994 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2995 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2996 mctx->state_log[str_idx] = cur_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2997 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2998 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
2999 for (null_cnt = 0; str_idx < last_str && null_cnt <= mctx->max_mb_elem_len;) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3000 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3001 re_node_set_empty (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3002 if (mctx->state_log[str_idx + 1]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3003 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3004 err = re_node_set_merge (&next_nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3005 &mctx->state_log[str_idx + 1]->nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3006 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3007 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3008 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3009 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3010 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3011 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3012 if (cur_state) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3013 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3014 err = check_arrival_add_next_nodes (mctx, str_idx, |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3015 &cur_state->non_eps_nodes, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3016 &next_nodes); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3017 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3018 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3019 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3020 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3021 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3022 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3023 ++str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3024 if (next_nodes.nelem) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3025 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3026 err = check_arrival_expand_ecl (dfa, &next_nodes, subexp_num, type); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3027 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3028 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3029 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3030 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3031 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3032 err = expand_bkref_cache (mctx, &next_nodes, str_idx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3033 subexp_num, type); |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3034 if (BE (err != REG_NOERROR, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3035 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3036 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3037 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3038 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3039 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3040 context = re_string_context_at (&mctx->input, str_idx - 1, mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3041 cur_state = re_acquire_state_context (&err, dfa, &next_nodes, context); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3042 if (BE (cur_state == NULL && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3043 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3044 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3045 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3046 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3047 mctx->state_log[str_idx] = cur_state; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3048 null_cnt = cur_state == NULL ? null_cnt + 1 : 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3049 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3050 re_node_set_free (&next_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3051 cur_nodes = (mctx->state_log[last_str] == NULL ? NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3052 : &mctx->state_log[last_str]->nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3053 path->next_idx = str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3054 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3055 /* Fix MCTX. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3056 mctx->state_log = backup_state_log; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3057 mctx->input.cur_idx = backup_cur_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3058 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3059 /* Then check the current node set has the node LAST_NODE. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3060 if (cur_nodes != NULL && re_node_set_contains (cur_nodes, last_node)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3061 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3062 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3063 return REG_NOMATCH; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3064 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3065 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3066 /* Helper functions for check_arrival. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3067 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3068 /* Calculate the destination nodes of CUR_NODES at STR_IDX, and append them |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3069 to NEXT_NODES. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3070 TODO: This function is similar to the functions transit_state*(), |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3071 however this function has many additional works. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3072 Can't we unify them? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3073 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3074 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
3075 internal_function |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3076 check_arrival_add_next_nodes (re_match_context_t *mctx, Idx str_idx, |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3077 re_node_set *cur_nodes, re_node_set *next_nodes) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3078 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3079 const re_dfa_t *const dfa = mctx->dfa; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3080 bool ok; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3081 Idx cur_idx; |
| 10955 | 3082 #ifdef RE_ENABLE_I18N |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3083 reg_errcode_t err = REG_NOERROR; |
| 10955 | 3084 #endif |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3085 re_node_set union_set; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3086 re_node_set_init_empty (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3087 for (cur_idx = 0; cur_idx < cur_nodes->nelem; ++cur_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3088 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3089 int naccepted = 0; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3090 Idx cur_node = cur_nodes->elems[cur_idx]; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3091 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3092 re_token_type_t type = dfa->nodes[cur_node].type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3093 assert (!IS_EPSILON_NODE (type)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3094 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3095 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3096 /* If the node may accept `multi byte'. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3097 if (dfa->nodes[cur_node].accept_mb) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3098 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3099 naccepted = check_node_accept_bytes (dfa, cur_node, &mctx->input, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3100 str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3101 if (naccepted > 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3102 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3103 re_dfastate_t *dest_state; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3104 Idx next_node = dfa->nexts[cur_node]; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3105 Idx next_idx = str_idx + naccepted; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3106 dest_state = mctx->state_log[next_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3107 re_node_set_empty (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3108 if (dest_state) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3109 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3110 err = re_node_set_merge (&union_set, &dest_state->nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3111 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3112 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3113 re_node_set_free (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3114 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3115 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3116 } |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3117 ok = re_node_set_insert (&union_set, next_node); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3118 if (BE (! ok, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3119 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3120 re_node_set_free (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3121 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3122 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3123 mctx->state_log[next_idx] = re_acquire_state (&err, dfa, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3124 &union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3125 if (BE (mctx->state_log[next_idx] == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3126 && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3127 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3128 re_node_set_free (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3129 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3130 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3131 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3132 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3133 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3134 if (naccepted |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3135 || check_node_accept (mctx, dfa->nodes + cur_node, str_idx)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3136 { |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3137 ok = re_node_set_insert (next_nodes, dfa->nexts[cur_node]); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3138 if (BE (! ok, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3139 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3140 re_node_set_free (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3141 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3142 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3143 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3144 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3145 re_node_set_free (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3146 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3147 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3148 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3149 /* For all the nodes in CUR_NODES, add the epsilon closures of them to |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3150 CUR_NODES, however exclude the nodes which are: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3151 - inside the sub expression whose number is EX_SUBEXP, if FL_OPEN. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3152 - out of the sub expression whose number is EX_SUBEXP, if !FL_OPEN. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3153 */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3154 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3155 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
3156 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3157 check_arrival_expand_ecl (const re_dfa_t *dfa, re_node_set *cur_nodes, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3158 Idx ex_subexp, int type) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3159 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3160 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3161 Idx idx, outside_node; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3162 re_node_set new_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3163 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3164 assert (cur_nodes->nelem); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3165 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3166 err = re_node_set_alloc (&new_nodes, cur_nodes->nelem); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3167 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3168 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3169 /* Create a new node set NEW_NODES with the nodes which are epsilon |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3170 closures of the node in CUR_NODES. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3171 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3172 for (idx = 0; idx < cur_nodes->nelem; ++idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3173 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3174 Idx cur_node = cur_nodes->elems[idx]; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3175 const re_node_set *eclosure = dfa->eclosures + cur_node; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3176 outside_node = find_subexp_node (dfa, eclosure, ex_subexp, type); |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3177 if (outside_node == REG_MISSING) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3178 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3179 /* There are no problematic nodes, just merge them. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3180 err = re_node_set_merge (&new_nodes, eclosure); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3181 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3182 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3183 re_node_set_free (&new_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3184 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3185 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3186 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3187 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3188 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3189 /* There are problematic nodes, re-calculate incrementally. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3190 err = check_arrival_expand_ecl_sub (dfa, &new_nodes, cur_node, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3191 ex_subexp, type); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3192 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3193 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3194 re_node_set_free (&new_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3195 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3196 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3197 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3198 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3199 re_node_set_free (cur_nodes); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3200 *cur_nodes = new_nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3201 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3202 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3203 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3204 /* Helper function for check_arrival_expand_ecl. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3205 Check incrementally the epsilon closure of TARGET, and if it isn't |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3206 problematic append it to DST_NODES. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3207 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3208 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
3209 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3210 check_arrival_expand_ecl_sub (const re_dfa_t *dfa, re_node_set *dst_nodes, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3211 Idx target, Idx ex_subexp, int type) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3212 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3213 Idx cur_node; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3214 for (cur_node = target; !re_node_set_contains (dst_nodes, cur_node);) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3215 { |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3216 bool ok; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3217 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3218 if (dfa->nodes[cur_node].type == type |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3219 && dfa->nodes[cur_node].opr.idx == ex_subexp) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3220 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3221 if (type == OP_CLOSE_SUBEXP) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3222 { |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3223 ok = re_node_set_insert (dst_nodes, cur_node); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3224 if (BE (! ok, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3225 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3226 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3227 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3228 } |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3229 ok = re_node_set_insert (dst_nodes, cur_node); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3230 if (BE (! ok, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3231 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3232 if (dfa->edests[cur_node].nelem == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3233 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3234 if (dfa->edests[cur_node].nelem == 2) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3235 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3236 reg_errcode_t err; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3237 err = check_arrival_expand_ecl_sub (dfa, dst_nodes, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3238 dfa->edests[cur_node].elems[1], |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3239 ex_subexp, type); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3240 if (BE (err != REG_NOERROR, 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3241 return err; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3242 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3243 cur_node = dfa->edests[cur_node].elems[0]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3244 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3245 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3246 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3247 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3248 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3249 /* For all the back references in the current state, calculate the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3250 destination of the back references by the appropriate entry |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3251 in MCTX->BKREF_ENTS. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3252 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3253 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
3254 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
3255 expand_bkref_cache (re_match_context_t *mctx, re_node_set *cur_nodes, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3256 Idx cur_str, Idx subexp_num, int type) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3257 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3258 const re_dfa_t *const dfa = mctx->dfa; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3259 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3260 Idx cache_idx_start = search_cur_bkref_entry (mctx, cur_str); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3261 struct re_backref_cache_entry *ent; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3262 |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3263 if (cache_idx_start == REG_MISSING) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3264 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3265 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3266 restart: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3267 ent = mctx->bkref_ents + cache_idx_start; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3268 do |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3269 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3270 Idx to_idx, next_node; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3271 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3272 /* Is this entry ENT is appropriate? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3273 if (!re_node_set_contains (cur_nodes, ent->node)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3274 continue; /* No. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3275 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3276 to_idx = cur_str + ent->subexp_to - ent->subexp_from; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3277 /* Calculate the destination of the back reference, and append it |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3278 to MCTX->STATE_LOG. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3279 if (to_idx == cur_str) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3280 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3281 /* The backreference did epsilon transit, we must re-check all the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3282 node in the current state. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3283 re_node_set new_dests; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3284 reg_errcode_t err2, err3; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3285 next_node = dfa->edests[ent->node].elems[0]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3286 if (re_node_set_contains (cur_nodes, next_node)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3287 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3288 err = re_node_set_init_1 (&new_dests, next_node); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3289 err2 = check_arrival_expand_ecl (dfa, &new_dests, subexp_num, type); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3290 err3 = re_node_set_merge (cur_nodes, &new_dests); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3291 re_node_set_free (&new_dests); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3292 if (BE (err != REG_NOERROR || err2 != REG_NOERROR |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3293 || err3 != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3294 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3295 err = (err != REG_NOERROR ? err |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3296 : (err2 != REG_NOERROR ? err2 : err3)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3297 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3298 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3299 /* TODO: It is still inefficient... */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3300 goto restart; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3301 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3302 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3303 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3304 re_node_set union_set; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3305 next_node = dfa->nexts[ent->node]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3306 if (mctx->state_log[to_idx]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3307 { |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3308 bool ok; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3309 if (re_node_set_contains (&mctx->state_log[to_idx]->nodes, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3310 next_node)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3311 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3312 err = re_node_set_init_copy (&union_set, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3313 &mctx->state_log[to_idx]->nodes); |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3314 ok = re_node_set_insert (&union_set, next_node); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3315 if (BE (err != REG_NOERROR || ! ok, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3316 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3317 re_node_set_free (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3318 err = err != REG_NOERROR ? err : REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3319 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3320 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3321 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3322 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3323 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3324 err = re_node_set_init_1 (&union_set, next_node); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3325 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3326 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3327 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3328 mctx->state_log[to_idx] = re_acquire_state (&err, dfa, &union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3329 re_node_set_free (&union_set); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3330 if (BE (mctx->state_log[to_idx] == NULL |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3331 && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3332 return err; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3333 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3334 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3335 while (ent++->more); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3336 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3337 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3338 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3339 /* Build transition table for the state. |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3340 Return true if successful. */ |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3341 |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3342 static bool |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
3343 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3344 build_trtable (const re_dfa_t *dfa, re_dfastate_t *state) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3345 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3346 reg_errcode_t err; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3347 Idx i, j; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3348 int ch; |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3349 bool need_word_trtable = false; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3350 bitset_word_t elem, mask; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3351 bool dests_node_malloced = false; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3352 bool dest_states_malloced = false; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3353 Idx ndests; /* Number of the destination states from `state'. */ |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3354 re_dfastate_t **trtable; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3355 re_dfastate_t **dest_states = NULL, **dest_states_word, **dest_states_nl; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3356 re_node_set follows, *dests_node; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3357 bitset_t *dests_ch; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3358 bitset_t acceptable; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3359 |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3360 struct dests_alloc |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3361 { |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3362 re_node_set dests_node[SBC_MAX]; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3363 bitset_t dests_ch[SBC_MAX]; |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3364 } *dests_alloc; |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3365 |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3366 /* We build DFA states which corresponds to the destination nodes |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3367 from `state'. `dests_node[i]' represents the nodes which i-th |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3368 destination state contains, and `dests_ch[i]' represents the |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3369 characters which i-th destination state accepts. */ |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3370 if (__libc_use_alloca (sizeof (struct dests_alloc))) |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3371 dests_alloc = (struct dests_alloc *) alloca (sizeof (struct dests_alloc)); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3372 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3373 { |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3374 dests_alloc = re_malloc (struct dests_alloc, 1); |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3375 if (BE (dests_alloc == NULL, 0)) |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3376 return false; |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3377 dests_node_malloced = true; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3378 } |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3379 dests_node = dests_alloc->dests_node; |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3380 dests_ch = dests_alloc->dests_ch; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3381 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3382 /* Initialize transiton table. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3383 state->word_trtable = state->trtable = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3384 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3385 /* At first, group all nodes belonging to `state' into several |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3386 destinations. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3387 ndests = group_nodes_into_DFAstates (dfa, state, dests_node, dests_ch); |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3388 if (BE (! REG_VALID_NONZERO_INDEX (ndests), 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3389 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3390 if (dests_node_malloced) |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3391 free (dests_alloc); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3392 if (ndests == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3393 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3394 state->trtable = (re_dfastate_t **) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3395 calloc (sizeof (re_dfastate_t *), SBC_MAX); |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3396 return true; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3397 } |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3398 return false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3399 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3400 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3401 err = re_node_set_alloc (&follows, ndests + 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3402 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3403 goto out_free; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3404 |
|
6206
ca2f5d46eeb6
Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents:
6195
diff
changeset
|
3405 /* Avoid arithmetic overflow in size calculation. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3406 if (BE ((((SIZE_MAX - (sizeof (re_node_set) + sizeof (bitset_t)) * SBC_MAX) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3407 / (3 * sizeof (re_dfastate_t *))) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3408 < ndests), |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3409 0)) |
|
6206
ca2f5d46eeb6
Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents:
6195
diff
changeset
|
3410 goto out_free; |
|
ca2f5d46eeb6
Check for arithmetic overflow when calculating sizes, to prevent
Paul Eggert <eggert@cs.ucla.edu>
parents:
6195
diff
changeset
|
3411 |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3412 if (__libc_use_alloca ((sizeof (re_node_set) + sizeof (bitset_t)) * SBC_MAX |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3413 + ndests * 3 * sizeof (re_dfastate_t *))) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3414 dest_states = (re_dfastate_t **) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3415 alloca (ndests * 3 * sizeof (re_dfastate_t *)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3416 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3417 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3418 dest_states = (re_dfastate_t **) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3419 malloc (ndests * 3 * sizeof (re_dfastate_t *)); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3420 if (BE (dest_states == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3421 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3422 out_free: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3423 if (dest_states_malloced) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3424 free (dest_states); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3425 re_node_set_free (&follows); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3426 for (i = 0; i < ndests; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3427 re_node_set_free (dests_node + i); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3428 if (dests_node_malloced) |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3429 free (dests_alloc); |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3430 return false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3431 } |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3432 dest_states_malloced = true; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3433 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3434 dest_states_word = dest_states + ndests; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3435 dest_states_nl = dest_states_word + ndests; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3436 bitset_empty (acceptable); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3437 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3438 /* Then build the states for all destinations. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3439 for (i = 0; i < ndests; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3440 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3441 Idx next_node; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3442 re_node_set_empty (&follows); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3443 /* Merge the follows of this destination states. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3444 for (j = 0; j < dests_node[i].nelem; ++j) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3445 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3446 next_node = dfa->nexts[dests_node[i].elems[j]]; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3447 if (next_node != REG_MISSING) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3448 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3449 err = re_node_set_merge (&follows, dfa->eclosures + next_node); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3450 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3451 goto out_free; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3452 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3453 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3454 dest_states[i] = re_acquire_state_context (&err, dfa, &follows, 0); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3455 if (BE (dest_states[i] == NULL && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3456 goto out_free; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3457 /* If the new state has context constraint, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3458 build appropriate states for these contexts. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3459 if (dest_states[i]->has_constraint) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3460 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3461 dest_states_word[i] = re_acquire_state_context (&err, dfa, &follows, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3462 CONTEXT_WORD); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3463 if (BE (dest_states_word[i] == NULL && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3464 goto out_free; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3465 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3466 if (dest_states[i] != dest_states_word[i] && dfa->mb_cur_max > 1) |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3467 need_word_trtable = true; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3468 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3469 dest_states_nl[i] = re_acquire_state_context (&err, dfa, &follows, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3470 CONTEXT_NEWLINE); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3471 if (BE (dest_states_nl[i] == NULL && err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3472 goto out_free; |
|
10079
6b412972dce7
Fix violation of <stdbool.h> replacement in regex.
Eric Blake <ebb9@byu.net>
parents:
8540
diff
changeset
|
3473 } |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3474 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3475 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3476 dest_states_word[i] = dest_states[i]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3477 dest_states_nl[i] = dest_states[i]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3478 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3479 bitset_merge (acceptable, dests_ch[i]); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3480 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3481 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3482 if (!BE (need_word_trtable, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3483 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3484 /* We don't care about whether the following character is a word |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3485 character, or we are in a single-byte character set so we can |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3486 discern by looking at the character code: allocate a |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3487 256-entry transition table. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3488 trtable = state->trtable = |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3489 (re_dfastate_t **) calloc (sizeof (re_dfastate_t *), SBC_MAX); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3490 if (BE (trtable == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3491 goto out_free; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3492 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3493 /* For all characters ch...: */ |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3494 for (i = 0; i < BITSET_WORDS; ++i) |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3495 for (ch = i * BITSET_WORD_BITS, elem = acceptable[i], mask = 1; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3496 elem; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3497 mask <<= 1, elem >>= 1, ++ch) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3498 if (BE (elem & 1, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3499 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3500 /* There must be exactly one destination which accepts |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3501 character ch. See group_nodes_into_DFAstates. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3502 for (j = 0; (dests_ch[j][i] & mask) == 0; ++j) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3503 ; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3504 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3505 /* j-th destination accepts the word character ch. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3506 if (dfa->word_char[i] & mask) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3507 trtable[ch] = dest_states_word[j]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3508 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3509 trtable[ch] = dest_states[j]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3510 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3511 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3512 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3513 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3514 /* We care about whether the following character is a word |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3515 character, and we are in a multi-byte character set: discern |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3516 by looking at the character code: build two 256-entry |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3517 transition tables, one starting at trtable[0] and one |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3518 starting at trtable[SBC_MAX]. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3519 trtable = state->word_trtable = |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3520 (re_dfastate_t **) calloc (sizeof (re_dfastate_t *), 2 * SBC_MAX); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3521 if (BE (trtable == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3522 goto out_free; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3523 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3524 /* For all characters ch...: */ |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3525 for (i = 0; i < BITSET_WORDS; ++i) |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3526 for (ch = i * BITSET_WORD_BITS, elem = acceptable[i], mask = 1; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3527 elem; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3528 mask <<= 1, elem >>= 1, ++ch) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3529 if (BE (elem & 1, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3530 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3531 /* There must be exactly one destination which accepts |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3532 character ch. See group_nodes_into_DFAstates. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3533 for (j = 0; (dests_ch[j][i] & mask) == 0; ++j) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3534 ; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3535 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3536 /* j-th destination accepts the word character ch. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3537 trtable[ch] = dest_states[j]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3538 trtable[ch + SBC_MAX] = dest_states_word[j]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3539 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3540 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3541 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3542 /* new line */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3543 if (bitset_contain (acceptable, NEWLINE_CHAR)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3544 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3545 /* The current state accepts newline character. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3546 for (j = 0; j < ndests; ++j) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3547 if (bitset_contain (dests_ch[j], NEWLINE_CHAR)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3548 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3549 /* k-th destination accepts newline character. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3550 trtable[NEWLINE_CHAR] = dest_states_nl[j]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3551 if (need_word_trtable) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3552 trtable[NEWLINE_CHAR + SBC_MAX] = dest_states_nl[j]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3553 /* There must be only one destination which accepts |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3554 newline. See group_nodes_into_DFAstates. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3555 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3556 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3557 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3558 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3559 if (dest_states_malloced) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3560 free (dest_states); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3561 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3562 re_node_set_free (&follows); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3563 for (i = 0; i < ndests; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3564 re_node_set_free (dests_node + i); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3565 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3566 if (dests_node_malloced) |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3567 free (dests_alloc); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3568 |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3569 return true; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3570 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3571 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3572 /* Group all nodes belonging to STATE into several destinations. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3573 Then for all destinations, set the nodes belonging to the destination |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3574 to DESTS_NODE[i] and set the characters accepted by the destination |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3575 to DEST_CH[i]. This function return the number of destinations. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3576 |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3577 static Idx |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
3578 internal_function |
|
6185
6b09f7f6ba73
* lib/regcomp.c (search_duplicated_node): Make first pointer arg
Paul Eggert <eggert@cs.ucla.edu>
parents:
6184
diff
changeset
|
3579 group_nodes_into_DFAstates (const re_dfa_t *dfa, const re_dfastate_t *state, |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3580 re_node_set *dests_node, bitset_t *dests_ch) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3581 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3582 reg_errcode_t err; |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3583 bool ok; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3584 Idx i, j, k; |
|
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3585 Idx ndests; /* Number of the destinations from `state'. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3586 bitset_t accepts; /* Characters a node can accept. */ |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3587 const re_node_set *cur_nodes = &state->nodes; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3588 bitset_empty (accepts); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3589 ndests = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3590 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3591 /* For all the nodes belonging to `state', */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3592 for (i = 0; i < cur_nodes->nelem; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3593 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3594 re_token_t *node = &dfa->nodes[cur_nodes->elems[i]]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3595 re_token_type_t type = node->type; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3596 unsigned int constraint = node->constraint; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3597 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3598 /* Enumerate all single byte character this node can accept. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3599 if (type == CHARACTER) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3600 bitset_set (accepts, node->opr.c); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3601 else if (type == SIMPLE_BRACKET) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3602 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3603 bitset_merge (accepts, node->opr.sbcset); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3604 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3605 else if (type == OP_PERIOD) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3606 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3607 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3608 if (dfa->mb_cur_max > 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3609 bitset_merge (accepts, dfa->sb_char); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3610 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3611 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3612 bitset_set_all (accepts); |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3613 if (!(dfa->syntax & RE_DOT_NEWLINE)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3614 bitset_clear (accepts, '\n'); |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3615 if (dfa->syntax & RE_DOT_NOT_NULL) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3616 bitset_clear (accepts, '\0'); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3617 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3618 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3619 else if (type == OP_UTF8_PERIOD) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3620 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3621 if (ASCII_CHARS % BITSET_WORD_BITS == 0) |
|
6816
336c26d193b7
* regexec.c (group_nodes_into_DFAstates): Fix a buffer overrun
Paul Eggert <eggert@cs.ucla.edu>
parents:
6726
diff
changeset
|
3622 memset (accepts, -1, ASCII_CHARS / CHAR_BIT); |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3623 else |
|
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3624 bitset_merge (accepts, utf8_sb_map); |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3625 if (!(dfa->syntax & RE_DOT_NEWLINE)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3626 bitset_clear (accepts, '\n'); |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3627 if (dfa->syntax & RE_DOT_NOT_NULL) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3628 bitset_clear (accepts, '\0'); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3629 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3630 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3631 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3632 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3633 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3634 /* Check the `accepts' and sift the characters which are not |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3635 match it the context. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3636 if (constraint) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3637 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3638 if (constraint & NEXT_NEWLINE_CONSTRAINT) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3639 { |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3640 bool accepts_newline = bitset_contain (accepts, NEWLINE_CHAR); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3641 bitset_empty (accepts); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3642 if (accepts_newline) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3643 bitset_set (accepts, NEWLINE_CHAR); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3644 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3645 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3646 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3647 if (constraint & NEXT_ENDBUF_CONSTRAINT) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3648 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3649 bitset_empty (accepts); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3650 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3651 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3652 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3653 if (constraint & NEXT_WORD_CONSTRAINT) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3654 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3655 bitset_word_t any_set = 0; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3656 if (type == CHARACTER && !node->word_char) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3657 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3658 bitset_empty (accepts); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3659 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3660 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3661 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3662 if (dfa->mb_cur_max > 1) |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3663 for (j = 0; j < BITSET_WORDS; ++j) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3664 any_set |= (accepts[j] &= (dfa->word_char[j] | ~dfa->sb_char[j])); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3665 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3666 #endif |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3667 for (j = 0; j < BITSET_WORDS; ++j) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3668 any_set |= (accepts[j] &= dfa->word_char[j]); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3669 if (!any_set) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3670 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3671 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3672 if (constraint & NEXT_NOTWORD_CONSTRAINT) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3673 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3674 bitset_word_t any_set = 0; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3675 if (type == CHARACTER && node->word_char) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3676 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3677 bitset_empty (accepts); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3678 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3679 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3680 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3681 if (dfa->mb_cur_max > 1) |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3682 for (j = 0; j < BITSET_WORDS; ++j) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3683 any_set |= (accepts[j] &= ~(dfa->word_char[j] & dfa->sb_char[j])); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3684 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3685 #endif |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3686 for (j = 0; j < BITSET_WORDS; ++j) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3687 any_set |= (accepts[j] &= ~dfa->word_char[j]); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3688 if (!any_set) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3689 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3690 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3691 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3692 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3693 /* Then divide `accepts' into DFA states, or create a new |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3694 state. Above, we make sure that accepts is not empty. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3695 for (j = 0; j < ndests; ++j) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3696 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3697 bitset_t intersec; /* Intersection sets, see below. */ |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3698 bitset_t remains; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3699 /* Flags, see below. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3700 bitset_word_t has_intersec, not_subset, not_consumed; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3701 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3702 /* Optimization, skip if this state doesn't accept the character. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3703 if (type == CHARACTER && !bitset_contain (dests_ch[j], node->opr.c)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3704 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3705 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3706 /* Enumerate the intersection set of this state and `accepts'. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3707 has_intersec = 0; |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3708 for (k = 0; k < BITSET_WORDS; ++k) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3709 has_intersec |= intersec[k] = accepts[k] & dests_ch[j][k]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3710 /* And skip if the intersection set is empty. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3711 if (!has_intersec) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3712 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3713 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3714 /* Then check if this state is a subset of `accepts'. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3715 not_subset = not_consumed = 0; |
|
6214
afb93b90dcb8
Change bitset word type from unsigned int to unsigned long int,
Paul Eggert <eggert@cs.ucla.edu>
parents:
6206
diff
changeset
|
3716 for (k = 0; k < BITSET_WORDS; ++k) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3717 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3718 not_subset |= remains[k] = ~accepts[k] & dests_ch[j][k]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3719 not_consumed |= accepts[k] = accepts[k] & ~dests_ch[j][k]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3720 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3721 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3722 /* If this state isn't a subset of `accepts', create a |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3723 new group state, which has the `remains'. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3724 if (not_subset) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3725 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3726 bitset_copy (dests_ch[ndests], remains); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3727 bitset_copy (dests_ch[j], intersec); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3728 err = re_node_set_init_copy (dests_node + ndests, &dests_node[j]); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3729 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3730 goto error_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3731 ++ndests; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3732 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3733 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3734 /* Put the position in the current group. */ |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3735 ok = re_node_set_insert (&dests_node[j], cur_nodes->elems[i]); |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
3736 if (BE (! ok, 0)) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3737 goto error_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3738 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3739 /* If all characters are consumed, go to next node. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3740 if (!not_consumed) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3741 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3742 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3743 /* Some characters remain, create a new group. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3744 if (j == ndests) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3745 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3746 bitset_copy (dests_ch[ndests], accepts); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3747 err = re_node_set_init_1 (dests_node + ndests, cur_nodes->elems[i]); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3748 if (BE (err != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3749 goto error_return; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3750 ++ndests; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3751 bitset_empty (accepts); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3752 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3753 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3754 return ndests; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3755 error_return: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3756 for (j = 0; j < ndests; ++j) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3757 re_node_set_free (dests_node + j); |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3758 return REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3759 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3760 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3761 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3762 /* Check how many bytes the node `dfa->nodes[node_idx]' accepts. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3763 Return the number of the bytes the node accepts. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3764 STR_IDX is the current index of the input string. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3765 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3766 This function handles the nodes which can accept one character, or |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3767 one collating element like '.', '[a-z]', opposite to the other nodes |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3768 can only accept one byte. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3769 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3770 static int |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
3771 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3772 check_node_accept_bytes (const re_dfa_t *dfa, Idx node_idx, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3773 const re_string_t *input, Idx str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3774 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3775 const re_token_t *node = dfa->nodes + node_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3776 int char_len, elem_len; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3777 Idx i; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3778 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3779 if (BE (node->type == OP_UTF8_PERIOD, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3780 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3781 unsigned char c = re_string_byte_at (input, str_idx), d; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3782 if (BE (c < 0xc2, 1)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3783 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3784 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3785 if (str_idx + 2 > input->len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3786 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3787 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3788 d = re_string_byte_at (input, str_idx + 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3789 if (c < 0xe0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3790 return (d < 0x80 || d > 0xbf) ? 0 : 2; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3791 else if (c < 0xf0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3792 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3793 char_len = 3; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3794 if (c == 0xe0 && d < 0xa0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3795 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3796 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3797 else if (c < 0xf8) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3798 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3799 char_len = 4; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3800 if (c == 0xf0 && d < 0x90) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3801 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3802 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3803 else if (c < 0xfc) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3804 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3805 char_len = 5; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3806 if (c == 0xf8 && d < 0x88) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3807 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3808 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3809 else if (c < 0xfe) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3810 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3811 char_len = 6; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3812 if (c == 0xfc && d < 0x84) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3813 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3814 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3815 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3816 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3817 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3818 if (str_idx + char_len > input->len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3819 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3820 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3821 for (i = 1; i < char_len; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3822 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3823 d = re_string_byte_at (input, str_idx + i); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3824 if (d < 0x80 || d > 0xbf) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3825 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3826 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3827 return char_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3828 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3829 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3830 char_len = re_string_char_size_at (input, str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3831 if (node->type == OP_PERIOD) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3832 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3833 if (char_len <= 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3834 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3835 /* FIXME: I don't think this if is needed, as both '\n' |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3836 and '\0' are char_len == 1. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3837 /* '.' accepts any one character except the following two cases. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3838 if ((!(dfa->syntax & RE_DOT_NEWLINE) && |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3839 re_string_byte_at (input, str_idx) == '\n') || |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
3840 ((dfa->syntax & RE_DOT_NOT_NULL) && |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3841 re_string_byte_at (input, str_idx) == '\0')) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3842 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3843 return char_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3844 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3845 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3846 elem_len = re_string_elem_size_at (input, str_idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3847 if ((elem_len <= 1 && char_len <= 1) || char_len == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3848 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3849 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3850 if (node->type == COMPLEX_BRACKET) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3851 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3852 const re_charset_t *cset = node->opr.mbcset; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3853 # ifdef _LIBC |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3854 const unsigned char *pin |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3855 = ((const unsigned char *) re_string_get_buffer (input) + str_idx); |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3856 Idx j; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3857 uint32_t nrules; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3858 # endif /* _LIBC */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3859 int match_len = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3860 wchar_t wc = ((cset->nranges || cset->nchar_classes || cset->nmbchars) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3861 ? re_string_wchar_at (input, str_idx) : 0); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3862 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3863 /* match with multibyte character? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3864 for (i = 0; i < cset->nmbchars; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3865 if (wc == cset->mbchars[i]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3866 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3867 match_len = char_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3868 goto check_node_accept_bytes_match; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3869 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3870 /* match with character_class? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3871 for (i = 0; i < cset->nchar_classes; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3872 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3873 wctype_t wt = cset->char_classes[i]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3874 if (__iswctype (wc, wt)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3875 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3876 match_len = char_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3877 goto check_node_accept_bytes_match; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3878 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3879 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3880 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3881 # ifdef _LIBC |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3882 nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3883 if (nrules != 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3884 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3885 unsigned int in_collseq = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3886 const int32_t *table, *indirect; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3887 const unsigned char *weights, *extra; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3888 const char *collseqwc; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3889 int32_t idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3890 /* This #include defines a local function! */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3891 # include <locale/weight.h> |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3892 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3893 /* match with collating_symbol? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3894 if (cset->ncoll_syms) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3895 extra = (const unsigned char *) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3896 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3897 for (i = 0; i < cset->ncoll_syms; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3898 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3899 const unsigned char *coll_sym = extra + cset->coll_syms[i]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3900 /* Compare the length of input collating element and |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3901 the length of current collating element. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3902 if (*coll_sym != elem_len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3903 continue; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3904 /* Compare each bytes. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3905 for (j = 0; j < *coll_sym; j++) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3906 if (pin[j] != coll_sym[1 + j]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3907 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3908 if (j == *coll_sym) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3909 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3910 /* Match if every bytes is equal. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3911 match_len = j; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3912 goto check_node_accept_bytes_match; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3913 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3914 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3915 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3916 if (cset->nranges) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3917 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3918 if (elem_len <= char_len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3919 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3920 collseqwc = _NL_CURRENT (LC_COLLATE, _NL_COLLATE_COLLSEQWC); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3921 in_collseq = __collseq_table_lookup (collseqwc, wc); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3922 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3923 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3924 in_collseq = find_collation_sequence_value (pin, elem_len); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3925 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3926 /* match with range expression? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3927 for (i = 0; i < cset->nranges; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3928 if (cset->range_starts[i] <= in_collseq |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3929 && in_collseq <= cset->range_ends[i]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3930 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3931 match_len = elem_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3932 goto check_node_accept_bytes_match; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3933 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3934 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3935 /* match with equivalence_class? */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3936 if (cset->nequiv_classes) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3937 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3938 const unsigned char *cp = pin; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3939 table = (const int32_t *) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3940 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3941 weights = (const unsigned char *) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3942 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTMB); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3943 extra = (const unsigned char *) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3944 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAMB); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3945 indirect = (const int32_t *) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3946 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTMB); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3947 idx = findidx (&cp); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3948 if (idx > 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3949 for (i = 0; i < cset->nequiv_classes; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3950 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3951 int32_t equiv_class_idx = cset->equiv_classes[i]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3952 size_t weight_len = weights[idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3953 if (weight_len == weights[equiv_class_idx]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3954 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
3955 Idx cnt = 0; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3956 while (cnt <= weight_len |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3957 && (weights[equiv_class_idx + 1 + cnt] |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3958 == weights[idx + 1 + cnt])) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3959 ++cnt; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3960 if (cnt > weight_len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3961 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3962 match_len = elem_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3963 goto check_node_accept_bytes_match; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3964 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3965 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3966 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3967 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3968 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3969 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3970 # endif /* _LIBC */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3971 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3972 /* match with range expression? */ |
|
7689
b4806b1ec9e4
Fix some incompatibilities with gcc -ansi -pedantic.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6816
diff
changeset
|
3973 #if __GNUC__ >= 2 && ! (__STDC_VERSION__ < 199901L && __STRICT_ANSI__) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3974 wchar_t cmp_buf[] = {L'\0', L'\0', wc, L'\0', L'\0', L'\0'}; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3975 #else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3976 wchar_t cmp_buf[] = {L'\0', L'\0', L'\0', L'\0', L'\0', L'\0'}; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3977 cmp_buf[2] = wc; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3978 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3979 for (i = 0; i < cset->nranges; ++i) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3980 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3981 cmp_buf[0] = cset->range_starts[i]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3982 cmp_buf[4] = cset->range_ends[i]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3983 if (wcscoll (cmp_buf, cmp_buf + 2) <= 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3984 && wcscoll (cmp_buf + 2, cmp_buf + 4) <= 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3985 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3986 match_len = char_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3987 goto check_node_accept_bytes_match; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3988 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3989 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3990 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3991 check_node_accept_bytes_match: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3992 if (!cset->non_match) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3993 return match_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3994 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3995 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3996 if (match_len > 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3997 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3998 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
3999 return (elem_len > char_len) ? elem_len : char_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4000 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4001 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4002 return 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4003 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4004 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4005 # ifdef _LIBC |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4006 static unsigned int |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4007 internal_function |
|
6174
6039b763ad3c
* lib/regcomp.c (re_comp) [defined _REGEX_RE_COMP || defined _LIBC]:
Paul Eggert <eggert@cs.ucla.edu>
parents:
6173
diff
changeset
|
4008 find_collation_sequence_value (const unsigned char *mbs, size_t mbs_len) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4009 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4010 uint32_t nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4011 if (nrules == 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4012 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4013 if (mbs_len == 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4014 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4015 /* No valid character. Match it as a single byte character. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4016 const unsigned char *collseq = (const unsigned char *) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4017 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_COLLSEQMB); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4018 return collseq[mbs[0]]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4019 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4020 return UINT_MAX; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4021 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4022 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4023 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4024 int32_t idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4025 const unsigned char *extra = (const unsigned char *) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4026 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4027 int32_t extrasize = (const unsigned char *) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4028 _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB + 1) - extra; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4029 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4030 for (idx = 0; idx < extrasize;) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4031 { |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4032 int mbs_cnt; |
|
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4033 bool found = false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4034 int32_t elem_mbs_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4035 /* Skip the name of collating element name. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4036 idx = idx + extra[idx] + 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4037 elem_mbs_len = extra[idx++]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4038 if (mbs_len == elem_mbs_len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4039 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4040 for (mbs_cnt = 0; mbs_cnt < elem_mbs_len; ++mbs_cnt) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4041 if (extra[idx + mbs_cnt] != mbs[mbs_cnt]) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4042 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4043 if (mbs_cnt == elem_mbs_len) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4044 /* Found the entry. */ |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4045 found = true; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4046 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4047 /* Skip the byte sequence of the collating element. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4048 idx += elem_mbs_len; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4049 /* Adjust for the alignment. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4050 idx = (idx + 3) & ~3; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4051 /* Skip the collation sequence value. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4052 idx += sizeof (uint32_t); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4053 /* Skip the wide char sequence of the collating element. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4054 idx = idx + sizeof (uint32_t) * (extra[idx] + 1); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4055 /* If we found the entry, return the sequence value. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4056 if (found) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4057 return *(uint32_t *) (extra + idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4058 /* Skip the collation sequence value. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4059 idx += sizeof (uint32_t); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4060 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4061 return UINT_MAX; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4062 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4063 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4064 # endif /* _LIBC */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4065 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4066 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4067 /* Check whether the node accepts the byte which is IDX-th |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4068 byte of the INPUT. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4069 |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4070 static bool |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4071 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4072 check_node_accept (const re_match_context_t *mctx, const re_token_t *node, |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4073 Idx idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4074 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4075 unsigned char ch; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4076 ch = re_string_byte_at (&mctx->input, idx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4077 switch (node->type) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4078 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4079 case CHARACTER: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4080 if (node->opr.c != ch) |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4081 return false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4082 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4083 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4084 case SIMPLE_BRACKET: |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4085 if (!bitset_contain (node->opr.sbcset, ch)) |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4086 return false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4087 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4088 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4089 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4090 case OP_UTF8_PERIOD: |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4091 if (ch >= ASCII_CHARS) |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4092 return false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4093 /* FALLTHROUGH */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4094 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4095 case OP_PERIOD: |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4096 if ((ch == '\n' && !(mctx->dfa->syntax & RE_DOT_NEWLINE)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4097 || (ch == '\0' && (mctx->dfa->syntax & RE_DOT_NOT_NULL))) |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4098 return false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4099 break; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4100 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4101 default: |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4102 return false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4103 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4104 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4105 if (node->constraint) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4106 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4107 /* The node has constraints. Check whether the current context |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4108 satisfies the constraints. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4109 unsigned int context = re_string_context_at (&mctx->input, idx, |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4110 mctx->eflags); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4111 if (NOT_SATISFY_NEXT_CONSTRAINT (node->constraint, context)) |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4112 return false; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4113 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4114 |
|
6195
25eaa608fc4e
Use bool where appropriate.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6186
diff
changeset
|
4115 return true; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4116 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4117 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4118 /* Extend the buffers, if the buffers have run out. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4119 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4120 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4121 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4122 extend_buffers (re_match_context_t *mctx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4123 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4124 reg_errcode_t ret; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4125 re_string_t *pstr = &mctx->input; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4126 |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4127 /* Avoid overflow. */ |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4128 if (BE (SIZE_MAX / 2 / sizeof (re_dfastate_t *) <= pstr->bufs_len, 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4129 return REG_ESPACE; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4130 |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4131 /* Double the lengthes of the buffers. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4132 ret = re_string_realloc_buffers (pstr, pstr->bufs_len * 2); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4133 if (BE (ret != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4134 return ret; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4135 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4136 if (mctx->state_log != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4137 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4138 /* And double the length of state_log. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4139 /* XXX We have no indication of the size of this buffer. If this |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4140 allocation fail we have no indication that the state_log array |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4141 does not have the right size. */ |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4142 re_dfastate_t **new_array = re_realloc (mctx->state_log, re_dfastate_t *, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4143 pstr->bufs_len + 1); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4144 if (BE (new_array == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4145 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4146 mctx->state_log = new_array; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4147 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4148 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4149 /* Then reconstruct the buffers. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4150 if (pstr->icase) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4151 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4152 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4153 if (pstr->mb_cur_max > 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4154 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4155 ret = build_wcs_upper_buffer (pstr); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4156 if (BE (ret != REG_NOERROR, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4157 return ret; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4158 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4159 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4160 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4161 build_upper_buffer (pstr); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4162 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4163 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4164 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4165 #ifdef RE_ENABLE_I18N |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4166 if (pstr->mb_cur_max > 1) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4167 build_wcs_buffer (pstr); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4168 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4169 #endif /* RE_ENABLE_I18N */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4170 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4171 if (pstr->trans != NULL) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4172 re_string_translate_buffer (pstr); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4173 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4174 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4175 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4176 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4177 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4178 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4179 /* Functions for matching context. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4180 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4181 /* Initialize MCTX. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4182 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4183 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4184 internal_function |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4185 match_ctx_init (re_match_context_t *mctx, int eflags, Idx n) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4186 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4187 mctx->eflags = eflags; |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4188 mctx->match_last = REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4189 if (n > 0) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4190 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4191 /* Avoid overflow. */ |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4192 size_t max_object_size = |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4193 MAX (sizeof (struct re_backref_cache_entry), |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4194 sizeof (re_sub_match_top_t *)); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4195 if (BE (SIZE_MAX / max_object_size < n, 0)) |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4196 return REG_ESPACE; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4197 |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4198 mctx->bkref_ents = re_malloc (struct re_backref_cache_entry, n); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4199 mctx->sub_tops = re_malloc (re_sub_match_top_t *, n); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4200 if (BE (mctx->bkref_ents == NULL || mctx->sub_tops == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4201 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4202 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4203 /* Already zero-ed by the caller. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4204 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4205 mctx->bkref_ents = NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4206 mctx->nbkref_ents = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4207 mctx->nsub_tops = 0; */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4208 mctx->abkref_ents = n; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4209 mctx->max_mb_elem_len = 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4210 mctx->asub_tops = n; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4211 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4212 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4213 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4214 /* Clean the entries which depend on the current input in MCTX. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4215 This function must be invoked when the matcher changes the start index |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4216 of the input, or changes the input string. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4217 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4218 static void |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4219 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4220 match_ctx_clean (re_match_context_t *mctx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4221 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4222 Idx st_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4223 for (st_idx = 0; st_idx < mctx->nsub_tops; ++st_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4224 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4225 Idx sl_idx; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4226 re_sub_match_top_t *top = mctx->sub_tops[st_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4227 for (sl_idx = 0; sl_idx < top->nlasts; ++sl_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4228 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4229 re_sub_match_last_t *last = top->lasts[sl_idx]; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4230 re_free (last->path.array); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4231 re_free (last); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4232 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4233 re_free (top->lasts); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4234 if (top->path) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4235 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4236 re_free (top->path->array); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4237 re_free (top->path); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4238 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4239 free (top); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4240 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4241 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4242 mctx->nsub_tops = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4243 mctx->nbkref_ents = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4244 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4245 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4246 /* Free all the memory associated with MCTX. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4247 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4248 static void |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4249 internal_function |
|
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4250 match_ctx_free (re_match_context_t *mctx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4251 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4252 /* First, free all the memory associated with MCTX->SUB_TOPS. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4253 match_ctx_clean (mctx); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4254 re_free (mctx->sub_tops); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4255 re_free (mctx->bkref_ents); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4256 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4257 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4258 /* Add a new backreference entry to MCTX. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4259 Note that we assume that caller never call this function with duplicate |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4260 entry, and call with STR_IDX which isn't smaller than any existing entry. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4261 */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4262 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4263 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4264 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4265 match_ctx_add_entry (re_match_context_t *mctx, Idx node, Idx str_idx, Idx from, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4266 Idx to) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4267 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4268 if (mctx->nbkref_ents >= mctx->abkref_ents) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4269 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4270 struct re_backref_cache_entry* new_entry; |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4271 new_entry = re_realloc (mctx->bkref_ents, struct re_backref_cache_entry, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4272 mctx->abkref_ents * 2); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4273 if (BE (new_entry == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4274 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4275 re_free (mctx->bkref_ents); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4276 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4277 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4278 mctx->bkref_ents = new_entry; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4279 memset (mctx->bkref_ents + mctx->nbkref_ents, '\0', |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4280 sizeof (struct re_backref_cache_entry) * mctx->abkref_ents); |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4281 mctx->abkref_ents *= 2; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4282 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4283 if (mctx->nbkref_ents > 0 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4284 && mctx->bkref_ents[mctx->nbkref_ents - 1].str_idx == str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4285 mctx->bkref_ents[mctx->nbkref_ents - 1].more = 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4286 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4287 mctx->bkref_ents[mctx->nbkref_ents].node = node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4288 mctx->bkref_ents[mctx->nbkref_ents].str_idx = str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4289 mctx->bkref_ents[mctx->nbkref_ents].subexp_from = from; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4290 mctx->bkref_ents[mctx->nbkref_ents].subexp_to = to; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4291 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4292 /* This is a cache that saves negative results of check_dst_limits_calc_pos. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4293 If bit N is clear, means that this entry won't epsilon-transition to |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4294 an OP_OPEN_SUBEXP or OP_CLOSE_SUBEXP for the N+1-th subexpression. If |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4295 it is set, check_dst_limits_calc_pos_1 will recurse and try to find one |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4296 such node. |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4297 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4298 A backreference does not epsilon-transition unless it is empty, so set |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4299 to all zeros if FROM != TO. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4300 mctx->bkref_ents[mctx->nbkref_ents].eps_reachable_subexps_map |
|
6171
5862ee08bfc1
* lib/regcomp.c (re_compile_fastmap_iter, init_dfa, init_word_char):
Paul Eggert <eggert@cs.ucla.edu>
parents:
6125
diff
changeset
|
4301 = (from == to ? -1 : 0); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4302 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4303 mctx->bkref_ents[mctx->nbkref_ents++].more = 0; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4304 if (mctx->max_mb_elem_len < to - from) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4305 mctx->max_mb_elem_len = to - from; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4306 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4307 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4308 |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4309 /* Return the first entry with the same str_idx, or REG_MISSING if none is |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4310 found. Note that MCTX->BKREF_ENTS is already sorted by MCTX->STR_IDX. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4311 |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4312 static Idx |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4313 internal_function |
|
6185
6b09f7f6ba73
* lib/regcomp.c (search_duplicated_node): Make first pointer arg
Paul Eggert <eggert@cs.ucla.edu>
parents:
6184
diff
changeset
|
4314 search_cur_bkref_entry (const re_match_context_t *mctx, Idx str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4315 { |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4316 Idx left, right, mid, last; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4317 last = right = mctx->nbkref_ents; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4318 for (left = 0; left < right;) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4319 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4320 mid = (left + right) / 2; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4321 if (mctx->bkref_ents[mid].str_idx < str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4322 left = mid + 1; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4323 else |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4324 right = mid; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4325 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4326 if (left < last && mctx->bkref_ents[left].str_idx == str_idx) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4327 return left; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4328 else |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4329 return REG_MISSING; |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4330 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4331 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4332 /* Register the node NODE, whose type is OP_OPEN_SUBEXP, and which matches |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4333 at STR_IDX. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4334 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4335 static reg_errcode_t |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4336 internal_function |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4337 match_ctx_add_subtop (re_match_context_t *mctx, Idx node, Idx str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4338 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4339 #ifdef DEBUG |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4340 assert (mctx->sub_tops != NULL); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4341 assert (mctx->asub_tops > 0); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4342 #endif |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4343 if (BE (mctx->nsub_tops == mctx->asub_tops, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4344 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4345 Idx new_asub_tops = mctx->asub_tops * 2; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4346 re_sub_match_top_t **new_array = re_realloc (mctx->sub_tops, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4347 re_sub_match_top_t *, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4348 new_asub_tops); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4349 if (BE (new_array == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4350 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4351 mctx->sub_tops = new_array; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4352 mctx->asub_tops = new_asub_tops; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4353 } |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4354 mctx->sub_tops[mctx->nsub_tops] = calloc (1, sizeof (re_sub_match_top_t)); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4355 if (BE (mctx->sub_tops[mctx->nsub_tops] == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4356 return REG_ESPACE; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4357 mctx->sub_tops[mctx->nsub_tops]->node = node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4358 mctx->sub_tops[mctx->nsub_tops++]->str_idx = str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4359 return REG_NOERROR; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4360 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4361 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4362 /* Register the node NODE, whose type is OP_CLOSE_SUBEXP, and which matches |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4363 at STR_IDX, whose corresponding OP_OPEN_SUBEXP is SUB_TOP. */ |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4364 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4365 static re_sub_match_last_t * |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4366 internal_function |
|
6184
f1728546eca4
On 64-bit hosts (where size_t is 64 bits and int is 32 bits), the
Paul Eggert <eggert@cs.ucla.edu>
parents:
6174
diff
changeset
|
4367 match_ctx_add_sublast (re_sub_match_top_t *subtop, Idx node, Idx str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4368 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4369 re_sub_match_last_t *new_entry; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4370 if (BE (subtop->nlasts == subtop->alasts, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4371 { |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4372 Idx new_alasts = 2 * subtop->alasts + 1; |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4373 re_sub_match_last_t **new_array = re_realloc (subtop->lasts, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4374 re_sub_match_last_t *, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4375 new_alasts); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4376 if (BE (new_array == NULL, 0)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4377 return NULL; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4378 subtop->lasts = new_array; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4379 subtop->alasts = new_alasts; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4380 } |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4381 new_entry = calloc (1, sizeof (re_sub_match_last_t)); |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4382 if (BE (new_entry != NULL, 1)) |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4383 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4384 subtop->lasts[subtop->nlasts] = new_entry; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4385 new_entry->node = node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4386 new_entry->str_idx = str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4387 ++subtop->nlasts; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4388 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
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|
4389 return new_entry; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4390 } |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4391 |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4392 static void |
|
6076
e2dd51f6e259
* config/srclist.txt: Add glibc bugs 1220, 1221, 1222.
Paul Eggert <eggert@cs.ucla.edu>
parents:
6069
diff
changeset
|
4393 internal_function |
|
6726
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4394 sift_ctx_init (re_sift_context_t *sctx, re_dfastate_t **sifted_sts, |
|
af9abbcedfbd
Merge regex changes from libc, removing some of our
Paul Eggert <eggert@cs.ucla.edu>
parents:
6236
diff
changeset
|
4395 re_dfastate_t **limited_sts, Idx last_node, Idx last_str_idx) |
|
5968
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4396 { |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4397 sctx->sifted_states = sifted_sts; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4398 sctx->limited_states = limited_sts; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4399 sctx->last_node = last_node; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4400 sctx->last_str_idx = last_str_idx; |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4401 re_node_set_init_empty (&sctx->limits); |
|
541fed6ae301
* modules/regex (Files): Add lib/regex_internal.c,
Paul Eggert <eggert@cs.ucla.edu>
parents:
diff
changeset
|
4402 } |