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4218
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1 /* Character handling in C locale. |
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2 |
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3 Copyright 2000-2003 Free Software Foundation, Inc. |
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4 |
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5 This program is free software; you can redistribute it and/or modify |
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6 it under the terms of the GNU General Public License as published by |
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7 the Free Software Foundation; either version 2 of the License, or |
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8 (at your option) any later version. |
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9 |
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10 This program is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 GNU General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU General Public License |
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16 along with this program; if not, write to the Free Software |
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17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
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18 |
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19 /* Specification. */ |
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20 #include "c-ctype.h" |
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21 |
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22 #undef c_isalnum |
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23 #undef c_isalpha |
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24 #undef c_isascii |
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25 #undef c_isblank |
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26 #undef c_iscntrl |
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27 #undef c_isdigit |
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28 #undef c_islower |
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29 #undef c_isgraph |
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30 #undef c_isprint |
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31 #undef c_ispunct |
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32 #undef c_isspace |
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33 #undef c_isupper |
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34 #undef c_isxdigit |
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35 #undef c_tolower |
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36 #undef c_toupper |
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37 |
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38 /* The function isascii is not locale dependent. Its use in EBCDIC is |
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39 questionable. */ |
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40 bool |
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41 c_isascii (int c) |
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42 { |
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4219
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43 return (c >= 0x00 && c <= 0x7f); |
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4218
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44 } |
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45 |
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46 bool |
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47 c_isalnum (int c) |
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48 { |
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49 #if C_CTYPE_CONSECUTIVE_DIGITS \ |
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50 && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
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51 #if C_CTYPE_ASCII |
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52 return ((c >= '0' && c <= '9') |
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53 || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z')); |
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54 #else |
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55 return ((c >= '0' && c <= '9') |
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56 || (c >= 'A' && c <= 'Z') |
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57 || (c >= 'a' && c <= 'z')); |
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58 #endif |
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59 #else |
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60 switch (c) |
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61 { |
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62 case '0': case '1': case '2': case '3': case '4': case '5': |
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63 case '6': case '7': case '8': case '9': |
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64 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
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65 case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
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66 case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
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67 case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
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68 case 'Y': case 'Z': |
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69 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
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70 case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
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71 case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
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72 case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
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73 case 'y': case 'z': |
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74 return 1; |
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75 default: |
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76 return 0; |
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77 } |
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78 #endif |
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79 } |
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80 |
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81 bool |
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82 c_isalpha (int c) |
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83 { |
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84 #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
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85 #if C_CTYPE_ASCII |
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86 return ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'); |
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87 #else |
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88 return ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')); |
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89 #endif |
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90 #else |
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91 switch (c) |
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92 { |
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93 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
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94 case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
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95 case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
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96 case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
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97 case 'Y': case 'Z': |
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98 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
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99 case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
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100 case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
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101 case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
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102 case 'y': case 'z': |
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103 return 1; |
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104 default: |
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105 return 0; |
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106 } |
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107 #endif |
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108 } |
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109 |
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110 bool |
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111 c_isblank (int c) |
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112 { |
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113 return (c == ' ' || c == '\t'); |
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114 } |
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115 |
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116 bool |
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117 c_iscntrl (int c) |
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118 { |
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119 #if C_CTYPE_ASCII |
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120 return ((c & ~0x1f) == 0 || c == 0x7f); |
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121 #else |
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122 switch (c) |
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123 { |
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124 case ' ': case '!': case '"': case '#': case '$': case '%': |
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125 case '&': case '\'': case '(': case ')': case '*': case '+': |
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126 case ',': case '-': case '.': case '/': |
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127 case '0': case '1': case '2': case '3': case '4': case '5': |
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128 case '6': case '7': case '8': case '9': |
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129 case ':': case ';': case '<': case '=': case '>': case '?': |
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130 case '@': |
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131 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
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132 case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
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133 case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
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134 case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
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135 case 'Y': case 'Z': |
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136 case '[': case '\\': case ']': case '^': case '_': case '`': |
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137 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
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138 case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
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139 case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
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140 case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
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141 case 'y': case 'z': |
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142 case '{': case '|': case '}': case '~': |
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143 return 0; |
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144 default: |
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145 return 1; |
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146 } |
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147 #endif |
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148 } |
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149 |
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150 bool |
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151 c_isdigit (int c) |
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152 { |
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153 #if C_CTYPE_CONSECUTIVE_DIGITS |
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154 return (c >= '0' && c <= '9'); |
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155 #else |
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156 switch (c) |
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157 { |
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158 case '0': case '1': case '2': case '3': case '4': case '5': |
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159 case '6': case '7': case '8': case '9': |
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160 return 1; |
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161 default: |
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162 return 0; |
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163 } |
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164 #endif |
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165 } |
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166 |
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167 bool |
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168 c_islower (int c) |
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169 { |
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170 #if C_CTYPE_CONSECUTIVE_LOWERCASE |
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171 return (c >= 'a' && c <= 'z'); |
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172 #else |
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173 switch (c) |
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174 { |
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175 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
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176 case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
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177 case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
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178 case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
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179 case 'y': case 'z': |
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180 return 1; |
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181 default: |
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182 return 0; |
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183 } |
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184 #endif |
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185 } |
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186 |
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187 bool |
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188 c_isgraph (int c) |
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189 { |
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190 #if C_CTYPE_ASCII |
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191 return (c >= '!' && c <= '~'); |
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192 #else |
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193 switch (c) |
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194 { |
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195 case '!': case '"': case '#': case '$': case '%': case '&': |
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196 case '\'': case '(': case ')': case '*': case '+': case ',': |
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197 case '-': case '.': case '/': |
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198 case '0': case '1': case '2': case '3': case '4': case '5': |
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199 case '6': case '7': case '8': case '9': |
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200 case ':': case ';': case '<': case '=': case '>': case '?': |
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201 case '@': |
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202 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
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203 case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
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204 case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
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205 case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
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206 case 'Y': case 'Z': |
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207 case '[': case '\\': case ']': case '^': case '_': case '`': |
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208 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
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209 case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
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210 case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
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211 case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
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212 case 'y': case 'z': |
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213 case '{': case '|': case '}': case '~': |
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214 return 1; |
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215 default: |
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216 return 0; |
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217 } |
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218 #endif |
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219 } |
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220 |
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221 bool |
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222 c_isprint (int c) |
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223 { |
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224 #if C_CTYPE_ASCII |
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225 return (c >= ' ' && c <= '~'); |
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226 #else |
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227 switch (c) |
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228 { |
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229 case ' ': case '!': case '"': case '#': case '$': case '%': |
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230 case '&': case '\'': case '(': case ')': case '*': case '+': |
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231 case ',': case '-': case '.': case '/': |
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232 case '0': case '1': case '2': case '3': case '4': case '5': |
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233 case '6': case '7': case '8': case '9': |
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234 case ':': case ';': case '<': case '=': case '>': case '?': |
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235 case '@': |
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236 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
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237 case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
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238 case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
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239 case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
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240 case 'Y': case 'Z': |
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241 case '[': case '\\': case ']': case '^': case '_': case '`': |
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242 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
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243 case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
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244 case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
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245 case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
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246 case 'y': case 'z': |
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247 case '{': case '|': case '}': case '~': |
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248 return 1; |
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249 default: |
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250 return 0; |
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251 } |
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252 #endif |
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253 } |
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254 |
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255 bool |
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256 c_ispunct (int c) |
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257 { |
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258 #if C_CTYPE_ASCII |
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259 return ((c >= '!' && c <= '~') |
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260 && !((c >= '0' && c <= '9') |
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261 || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'))); |
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262 #else |
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263 switch (c) |
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264 { |
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265 case '!': case '"': case '#': case '$': case '%': case '&': |
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266 case '\'': case '(': case ')': case '*': case '+': case ',': |
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267 case '-': case '.': case '/': |
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268 case ':': case ';': case '<': case '=': case '>': case '?': |
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269 case '@': |
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270 case '[': case '\\': case ']': case '^': case '_': case '`': |
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271 case '{': case '|': case '}': case '~': |
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272 return 1; |
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273 default: |
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274 return 0; |
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275 } |
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276 #endif |
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277 } |
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278 |
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279 bool |
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280 c_isspace (int c) |
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281 { |
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282 return (c == ' ' || c == '\t' |
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283 || c == '\n' || c == '\v' || c == '\f' || c == '\r'); |
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284 } |
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285 |
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286 bool |
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287 c_isupper (int c) |
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288 { |
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289 #if C_CTYPE_CONSECUTIVE_UPPERCASE |
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290 return (c >= 'A' && c <= 'Z'); |
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291 #else |
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292 switch (c) |
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293 { |
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294 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
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295 case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
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296 case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
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297 case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
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298 case 'Y': case 'Z': |
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299 return 1; |
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300 default: |
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301 return 0; |
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302 } |
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303 #endif |
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304 } |
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305 |
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306 bool |
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307 c_isxdigit (int c) |
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308 { |
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309 #if C_CTYPE_CONSECUTIVE_DIGITS \ |
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310 && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
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311 #if C_CTYPE_ASCII |
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312 return ((c >= '0' && c <= '9') |
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313 || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'F')); |
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314 #else |
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315 return ((c >= '0' && c <= '9') |
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316 || (c >= 'A' && c <= 'F') |
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317 || (c >= 'a' && c <= 'f')); |
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318 #endif |
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319 #else |
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320 switch (c) |
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321 { |
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322 case '0': case '1': case '2': case '3': case '4': case '5': |
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323 case '6': case '7': case '8': case '9': |
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324 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
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325 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
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326 return 1; |
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327 default: |
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328 return 0; |
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329 } |
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330 #endif |
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331 } |
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332 |
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333 int |
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334 c_tolower (int c) |
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335 { |
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336 #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
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337 return (c >= 'A' && c <= 'Z' ? c - 'A' + 'a' : c); |
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338 #else |
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339 switch (c) |
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340 { |
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341 case 'A': return 'a'; |
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342 case 'B': return 'b'; |
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343 case 'C': return 'c'; |
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344 case 'D': return 'd'; |
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345 case 'E': return 'e'; |
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346 case 'F': return 'f'; |
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347 case 'G': return 'g'; |
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348 case 'H': return 'h'; |
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349 case 'I': return 'i'; |
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350 case 'J': return 'j'; |
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351 case 'K': return 'k'; |
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352 case 'L': return 'l'; |
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353 case 'M': return 'm'; |
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354 case 'N': return 'n'; |
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355 case 'O': return 'o'; |
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356 case 'P': return 'p'; |
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357 case 'Q': return 'q'; |
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358 case 'R': return 'r'; |
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359 case 'S': return 's'; |
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360 case 'T': return 't'; |
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361 case 'U': return 'u'; |
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362 case 'V': return 'v'; |
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363 case 'W': return 'w'; |
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364 case 'X': return 'x'; |
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365 case 'Y': return 'y'; |
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366 case 'Z': return 'z'; |
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367 default: return c; |
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368 } |
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369 #endif |
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370 } |
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371 |
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372 int |
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373 c_toupper (int c) |
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374 { |
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375 #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
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376 return (c >= 'a' && c <= 'z' ? c - 'a' + 'A' : c); |
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377 #else |
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378 switch (c) |
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379 { |
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380 case 'a': return 'A'; |
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381 case 'b': return 'B'; |
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382 case 'c': return 'C'; |
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383 case 'd': return 'D'; |
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384 case 'e': return 'E'; |
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385 case 'f': return 'F'; |
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386 case 'g': return 'G'; |
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387 case 'h': return 'H'; |
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388 case 'i': return 'I'; |
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389 case 'j': return 'J'; |
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390 case 'k': return 'K'; |
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391 case 'l': return 'L'; |
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392 case 'm': return 'M'; |
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393 case 'n': return 'N'; |
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394 case 'o': return 'O'; |
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395 case 'p': return 'P'; |
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396 case 'q': return 'Q'; |
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397 case 'r': return 'R'; |
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398 case 's': return 'S'; |
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399 case 't': return 'T'; |
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400 case 'u': return 'U'; |
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401 case 'v': return 'V'; |
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402 case 'w': return 'W'; |
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403 case 'x': return 'X'; |
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404 case 'y': return 'Y'; |
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405 case 'z': return 'Z'; |
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406 default: return c; |
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407 } |
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408 #endif |
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409 } |
