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1 /* |
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2 |
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1884
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3 Copyright (C) 1996 John W. Eaton |
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604
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 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 |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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1192
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24 #include <config.h> |
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604
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25 #endif |
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26 |
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1343
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27 #include <cfloat> |
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28 #include <cstring> |
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29 #include <cctype> |
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30 |
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1728
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31 #include <string> |
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32 |
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604
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33 #include <iostream.h> |
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34 #include <fstream.h> |
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35 #include <strstream.h> |
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36 |
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1961
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37 #include "byte-swap.h" |
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38 #include "data-conv.h" |
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2318
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39 #include "mach-info.h" |
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1792
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40 #include "oct-glob.h" |
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1755
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41 #include "str-vec.h" |
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42 |
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1352
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43 #include "defun.h" |
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604
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44 #include "error.h" |
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777
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45 #include "gripes.h" |
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1352
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46 #include "help.h" |
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47 #include "load-save.h" |
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1742
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48 #include "mappers.h" |
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1750
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49 #include "oct-obj.h" |
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1352
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50 #include "pager.h" |
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1750
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51 #include "pt-exp.h" |
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2371
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52 #include "pt-fvc.h" |
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1352
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53 #include "symtab.h" |
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54 #include "sysdep.h" |
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55 #include "unwind-prot.h" |
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604
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56 #include "utils.h" |
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2371
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57 #include "variables.h" |
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58 |
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2194
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59 // The default output format. May be one of "binary", "text", or |
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60 // "mat-binary". |
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61 static string Vdefault_save_format; |
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62 |
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63 // The number of decimal digits to use when writing ascii data. |
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64 static int Vsave_precision; |
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65 |
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872
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66 // Used when converting Inf to something that gnuplot can read. |
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67 |
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68 #ifndef OCT_RBV |
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69 #define OCT_RBV DBL_MAX / 100.0 |
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70 #endif |
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71 |
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72 enum load_save_format |
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73 { |
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74 LS_ASCII, |
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75 LS_BINARY, |
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2511
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76 LS_MAT_ASCII, |
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77 LS_MAT_BINARY, |
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78 LS_UNKNOWN, |
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79 }; |
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80 |
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630
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81 // XXX FIXME XXX -- shouldn't this be implemented in terms of other |
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82 // functions that are already available? |
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83 |
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84 // Install a variable with name NAME and the value specified TC in the |
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85 // symbol table. If FORCE is nonzero, replace any existing definition |
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86 // for NAME. If GLOBAL is nonzero, make the variable global. |
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87 // |
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88 // Assumes TC is defined. |
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89 |
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90 static void |
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91 install_loaded_variable (int force, char *name, const octave_value& val, |
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92 int global, char *doc) |
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93 { |
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94 // Is there already a symbol by this name? If so, what is it? |
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95 |
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96 symbol_record *lsr = curr_sym_tab->lookup (name, 0, 0); |
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97 |
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98 int is_undefined = 1; |
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99 int is_variable = 0; |
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100 int is_function = 0; |
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101 int is_global = 0; |
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102 |
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103 if (lsr) |
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104 { |
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105 is_undefined = ! lsr->is_defined (); |
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106 is_variable = lsr->is_variable (); |
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107 is_function = lsr->is_function (); |
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108 is_global = lsr->is_linked_to_global (); |
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109 } |
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110 |
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111 symbol_record *sr = 0; |
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112 |
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113 if (global) |
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114 { |
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115 if (is_global || is_undefined) |
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116 { |
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117 if (force || is_undefined) |
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118 { |
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119 lsr = curr_sym_tab->lookup (name, 1, 0); |
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120 link_to_global_variable (lsr); |
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121 sr = lsr; |
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122 } |
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123 else |
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124 { |
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125 warning ("load: global variable name `%s' exists.", name); |
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126 warning ("use `load -force' to overwrite"); |
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127 } |
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128 } |
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129 else if (is_function) |
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130 { |
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131 if (force) |
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132 { |
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133 lsr = curr_sym_tab->lookup (name, 1, 0); |
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134 link_to_global_variable (lsr); |
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135 sr = lsr; |
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136 } |
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137 else |
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138 { |
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139 warning ("load: `%s' is currently a function in this scope", name); |
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140 warning ("`load -force' will load variable and hide function"); |
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141 } |
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142 } |
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143 else if (is_variable) |
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144 { |
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145 if (force) |
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146 { |
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147 lsr = curr_sym_tab->lookup (name, 1, 0); |
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148 link_to_global_variable (lsr); |
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149 sr = lsr; |
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150 } |
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151 else |
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152 { |
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153 warning ("load: local variable name `%s' exists.", name); |
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154 warning ("use `load -force' to overwrite"); |
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155 } |
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156 } |
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157 else |
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158 error ("load: unable to load data for unknown symbol type"); |
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159 } |
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160 else |
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161 { |
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162 if (is_global) |
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163 { |
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164 if (force || is_undefined) |
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165 { |
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166 lsr = curr_sym_tab->lookup (name, 1, 0); |
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167 link_to_global_variable (lsr); |
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168 sr = lsr; |
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169 } |
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170 else |
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171 { |
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172 warning ("load: global variable name `%s' exists.", name); |
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173 warning ("use `load -force' to overwrite"); |
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174 } |
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175 } |
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176 else if (is_function) |
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177 { |
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178 if (force) |
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179 { |
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180 lsr = curr_sym_tab->lookup (name, 1, 0); |
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181 link_to_global_variable (lsr); |
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182 sr = lsr; |
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183 } |
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184 else |
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185 { |
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186 warning ("load: `%s' is currently a function in this scope", name); |
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187 warning ("`load -force' will load variable and hide function"); |
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188 } |
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189 } |
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190 else if (is_variable || is_undefined) |
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191 { |
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192 if (force || is_undefined) |
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193 { |
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194 lsr = curr_sym_tab->lookup (name, 1, 0); |
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195 sr = lsr; |
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196 } |
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197 else |
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198 { |
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199 warning ("load: local variable name `%s' exists.", name); |
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200 warning ("use `load -force' to overwrite"); |
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201 } |
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202 } |
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203 else |
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774
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204 error ("load: unable to load data for unknown symbol type"); |
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205 } |
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206 |
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207 if (sr) |
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208 { |
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2371
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209 sr->define (val); |
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210 if (doc) |
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211 sr->document (doc); |
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212 return; |
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213 } |
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214 else |
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215 error ("load: unable to load variable `%s'", name); |
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216 |
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217 return; |
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218 } |
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219 |
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220 // Functions for reading ascii data. |
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221 |
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222 // Skip white space and comments on stream IS. |
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223 |
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224 static void |
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225 skip_comments (istream& is) |
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226 { |
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227 char c = '\0'; |
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228 while (is.get (c)) |
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229 { |
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230 if (c == ' ' || c == '\t' || c == '\n') |
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231 ; // Skip whitespace on way to beginning of next line. |
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232 else |
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233 break; |
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234 } |
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235 |
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236 for (;;) |
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237 { |
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238 if (is && c == '#') |
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239 while (is.get (c) && c != '\n') |
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240 ; // Skip to beginning of next line, ignoring everything. |
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241 else |
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242 break; |
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243 } |
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244 } |
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245 |
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246 // Extract a KEYWORD and its value from stream IS, returning the |
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247 // associated value in a new string. |
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248 // |
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249 // Input should look something like: |
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250 // |
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918
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251 // #[ \t]*keyword[ \t]*:[ \t]*string-value[ \t]*\n |
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252 |
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253 static char * |
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254 extract_keyword (istream& is, char *keyword) |
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255 { |
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256 char *retval = 0; |
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257 |
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258 char c; |
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259 while (is.get (c)) |
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260 { |
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261 if (c == '#') |
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262 { |
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2795
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263 ostrstream buf; |
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264 |
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604
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265 while (is.get (c) && (c == ' ' || c == '\t' || c == '#')) |
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266 ; // Skip whitespace and comment characters. |
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267 |
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268 if (isalpha (c)) |
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269 buf << c; |
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270 |
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271 while (is.get (c) && isalpha (c)) |
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272 buf << c; |
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273 |
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274 buf << ends; |
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275 char *tmp = buf.str (); |
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276 int match = (strncmp (tmp, keyword, strlen (keyword)) == 0); |
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277 delete [] tmp; |
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278 |
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279 if (match) |
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280 { |
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281 ostrstream value; |
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282 while (is.get (c) && (c == ' ' || c == '\t' || c == ':')) |
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283 ; // Skip whitespace and the colon. |
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284 |
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285 if (c != '\n') |
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286 { |
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287 value << c; |
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288 while (is.get (c) && c != '\n') |
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289 value << c; |
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290 } |
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291 value << ends; |
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292 retval = value.str (); |
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293 break; |
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294 } |
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295 } |
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296 } |
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918
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297 |
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298 if (retval) |
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299 { |
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300 int len = strlen (retval); |
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301 if (len > 0) |
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302 { |
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303 char *ptr = retval + len - 1; |
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304 while (*ptr == ' ' || *ptr == '\t') |
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305 ptr--; |
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306 *(ptr+1) = '\0'; |
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307 } |
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308 } |
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309 |
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604
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310 return retval; |
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311 } |
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312 |
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313 // Match KEYWORD on stream IS, placing the associated value in VALUE, |
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314 // returning 1 if successful and 0 otherwise. |
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315 // |
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316 // Input should look something like: |
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317 // |
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918
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318 // [ \t]*keyword[ \t]*int-value.*\n |
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604
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319 |
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320 static int |
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321 extract_keyword (istream& is, char *keyword, int& value) |
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322 { |
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323 int status = 0; |
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324 value = 0; |
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325 |
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326 char c; |
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327 while (is.get (c)) |
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328 { |
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329 if (c == '#') |
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330 { |
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2795
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331 ostrstream buf; |
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332 |
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604
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333 while (is.get (c) && (c == ' ' || c == '\t' || c == '#')) |
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334 ; // Skip whitespace and comment characters. |
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335 |
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336 if (isalpha (c)) |
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337 buf << c; |
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338 |
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339 while (is.get (c) && isalpha (c)) |
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340 buf << c; |
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341 |
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342 buf << ends; |
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343 char *tmp = buf.str (); |
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344 int match = (strncmp (tmp, keyword, strlen (keyword)) == 0); |
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345 delete [] tmp; |
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346 |
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347 if (match) |
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348 { |
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349 while (is.get (c) && (c == ' ' || c == '\t' || c == ':')) |
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350 ; // Skip whitespace and the colon. |
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351 |
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352 is.putback (c); |
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353 if (c != '\n') |
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354 is >> value; |
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355 if (is) |
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356 status = 1; |
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357 while (is.get (c) && c != '\n') |
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358 ; // Skip to beginning of next line; |
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359 break; |
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360 } |
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361 } |
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362 } |
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363 return status; |
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364 } |
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365 |
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366 // Extract one value (scalar, matrix, string, etc.) from stream IS and |
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367 // place it in TC, returning the name of the variable. If the value |
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368 // is tagged as global in the file, return nonzero in GLOBAL. |
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369 // |
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370 // FILENAME is used for error messages. |
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371 // |
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372 // The data is expected to be in the following format: |
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373 // |
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374 // The input file must have a header followed by some data. |
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375 // |
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376 // All lines in the header must begin with a `#' character. |
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377 // |
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378 // The header must contain a list of keyword and value pairs with the |
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379 // keyword and value separated by a colon. |
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380 // |
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381 // Keywords must appear in the following order: |
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382 // |
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383 // # name: <name> |
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384 // # type: <type> |
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385 // # <info> |
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386 // |
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387 // Where: |
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388 // |
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389 // <name> : a valid identifier |
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390 // |
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391 // <type> : <typename> |
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392 // | global <typename> |
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393 // |
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394 // <typename> : scalar |
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395 // | complex scalar |
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396 // | matrix |
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397 // | complex matrix |
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398 // | string |
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399 // | range |
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1427
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400 // | string array |
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604
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401 // |
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402 // <info> : <matrix info> |
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403 // | <string info> |
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1427
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404 // | <string array info> |
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604
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405 // |
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406 // <matrix info> : # rows: <integer> |
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1427
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407 // : # columns: <integer> |
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604
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408 // |
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1427
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409 // <string info> : # length: <integer> |
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410 // |
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411 // <string array info> : # elements: <integer> |
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412 // : # length: <integer> (once before each string) |
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604
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413 // |
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414 // Formatted ASCII data follows the header. |
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415 // |
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416 // Example: |
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417 // |
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418 // # name: foo |
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419 // # type: matrix |
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420 // # rows: 2 |
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421 // # columns: 2 |
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422 // 2 4 |
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423 // 1 3 |
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424 // |
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1427
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425 // Example: |
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426 // |
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427 // # name: foo |
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428 // # type: string array |
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429 // # elements: 5 |
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430 // # length: 4 |
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431 // this |
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432 // # length: 2 |
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433 // is |
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434 // # length: 1 |
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435 // a |
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436 // # length: 6 |
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437 // string |
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438 // # length: 5 |
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439 // array |
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440 // |
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604
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441 // XXX FIXME XXX -- this format is fairly rigid, and doesn't allow for |
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442 // arbitrary comments, etc. Someone should fix that. |
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443 |
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444 static char * |
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1755
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445 read_ascii_data (istream& is, const string& filename, int& global, |
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2086
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446 octave_value& tc) |
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604
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447 { |
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1358
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448 // Read name for this entry or break on EOF. |
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604
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449 |
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450 char *name = extract_keyword (is, "name"); |
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451 |
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452 if (! name) |
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453 return 0; |
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454 |
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455 if (! *name) |
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456 { |
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1755
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457 error ("load: empty name keyword found in file `%s'", |
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458 filename.c_str ()); |
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604
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459 delete [] name; |
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460 return 0; |
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461 } |
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462 |
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463 |
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464 if (! valid_identifier (name)) |
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465 { |
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1755
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466 error ("load: bogus identifier `%s' found in file `%s'", name, |
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467 filename.c_str ()); |
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604
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468 delete [] name; |
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469 return 0; |
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470 } |
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471 |
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1358
|
472 // Look for type keyword. |
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604
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473 |
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474 char *tag = extract_keyword (is, "type"); |
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475 |
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476 if (tag && *tag) |
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477 { |
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478 char *ptr = strchr (tag, ' '); |
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479 if (ptr) |
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480 { |
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481 *ptr = '\0'; |
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482 global = (strncmp (tag, "global", 6) == 0); |
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483 *ptr = ' '; |
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484 if (global) |
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485 ptr++; |
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486 else |
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487 ptr = tag; |
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488 } |
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489 else |
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490 ptr = tag; |
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491 |
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492 if (strncmp (ptr, "scalar", 6) == 0) |
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493 { |
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494 double tmp; |
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495 is >> tmp; |
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496 if (is) |
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|
497 tc = tmp; |
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|
498 else |
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|
499 error ("load: failed to load scalar constant"); |
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|
500 } |
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|
501 else if (strncmp (ptr, "matrix", 6) == 0) |
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502 { |
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|
503 int nr = 0, nc = 0; |
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|
504 |
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1275
|
505 if (extract_keyword (is, "rows", nr) && nr >= 0 |
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|
506 && extract_keyword (is, "columns", nc) && nc >= 0) |
|
604
|
507 { |
|
1275
|
508 if (nr > 0 && nc > 0) |
|
|
509 { |
|
|
510 Matrix tmp (nr, nc); |
|
|
511 is >> tmp; |
|
|
512 if (is) |
|
|
513 tc = tmp; |
|
|
514 else |
|
|
515 error ("load: failed to load matrix constant"); |
|
|
516 } |
|
|
517 else if (nr == 0 || nc == 0) |
|
|
518 tc = Matrix (nr, nc); |
|
604
|
519 else |
|
1275
|
520 panic_impossible (); |
|
604
|
521 } |
|
|
522 else |
|
|
523 error ("load: failed to extract number of rows and columns"); |
|
|
524 } |
|
|
525 else if (strncmp (ptr, "complex scalar", 14) == 0) |
|
|
526 { |
|
|
527 Complex tmp; |
|
|
528 is >> tmp; |
|
|
529 if (is) |
|
|
530 tc = tmp; |
|
|
531 else |
|
|
532 error ("load: failed to load complex scalar constant"); |
|
|
533 } |
|
|
534 else if (strncmp (ptr, "complex matrix", 14) == 0) |
|
|
535 { |
|
|
536 int nr = 0, nc = 0; |
|
|
537 |
|
|
538 if (extract_keyword (is, "rows", nr) && nr > 0 |
|
|
539 && extract_keyword (is, "columns", nc) && nc > 0) |
|
|
540 { |
|
|
541 ComplexMatrix tmp (nr, nc); |
|
|
542 is >> tmp; |
|
|
543 if (is) |
|
|
544 tc = tmp; |
|
|
545 else |
|
|
546 error ("load: failed to load complex matrix constant"); |
|
|
547 } |
|
|
548 else |
|
|
549 error ("load: failed to extract number of rows and columns"); |
|
|
550 } |
|
1427
|
551 else if (strncmp (ptr, "string array", 12) == 0) |
|
|
552 { |
|
|
553 int elements; |
|
|
554 if (extract_keyword (is, "elements", elements) && elements > 0) |
|
|
555 { |
|
1572
|
556 // XXX FIXME XXX -- need to be able to get max length |
|
|
557 // before doing anything. |
|
|
558 |
|
|
559 charMatrix chm (elements, 0); |
|
|
560 int max_len = 0; |
|
1427
|
561 for (int i = 0; i < elements; i++) |
|
|
562 { |
|
|
563 int len; |
|
|
564 if (extract_keyword (is, "length", len) && len > 0) |
|
|
565 { |
|
2497
|
566 char *tmp = new char [len+1]; |
|
1427
|
567 if (! is.read (tmp, len)) |
|
|
568 { |
|
|
569 error ("load: failed to load string constant"); |
|
|
570 break; |
|
|
571 } |
|
|
572 else |
|
1572
|
573 { |
|
2498
|
574 tmp [len] = '\0'; |
|
1572
|
575 if (len > max_len) |
|
|
576 { |
|
|
577 max_len = len; |
|
|
578 chm.resize (elements, max_len, 0); |
|
|
579 } |
|
|
580 chm.insert (tmp, i, 0); |
|
|
581 } |
|
1427
|
582 delete [] tmp; |
|
|
583 } |
|
|
584 else |
|
|
585 error ("load: failed to extract string length for element %d", i+1); |
|
|
586 } |
|
|
587 |
|
|
588 if (! error_state) |
|
2499
|
589 tc = octave_value (chm, true); |
|
1427
|
590 } |
|
|
591 else |
|
|
592 error ("load: failed to extract number of string elements"); |
|
|
593 } |
|
604
|
594 else if (strncmp (ptr, "string", 6) == 0) |
|
|
595 { |
|
|
596 int len; |
|
|
597 if (extract_keyword (is, "length", len) && len > 0) |
|
|
598 { |
|
|
599 char *tmp = new char [len+1]; |
|
|
600 is.get (tmp, len+1, EOF); |
|
|
601 if (is) |
|
|
602 tc = tmp; |
|
|
603 else |
|
|
604 error ("load: failed to load string constant"); |
|
|
605 } |
|
|
606 else |
|
|
607 error ("load: failed to extract string length"); |
|
|
608 } |
|
|
609 else if (strncmp (ptr, "range", 5) == 0) |
|
|
610 { |
|
1358
|
611 // # base, limit, range comment added by save(). |
|
|
612 |
|
604
|
613 skip_comments (is); |
|
|
614 Range tmp; |
|
|
615 is >> tmp; |
|
|
616 if (is) |
|
|
617 tc = tmp; |
|
|
618 else |
|
|
619 error ("load: failed to load range constant"); |
|
|
620 } |
|
|
621 else |
|
|
622 error ("load: unknown constant type `%s'", tag); |
|
|
623 } |
|
|
624 else |
|
|
625 error ("load: failed to extract keyword specifying value type"); |
|
|
626 |
|
|
627 delete [] tag; |
|
|
628 |
|
|
629 if (error_state) |
|
|
630 { |
|
1755
|
631 error ("load: reading file %s", filename.c_str ()); |
|
604
|
632 return 0; |
|
|
633 } |
|
|
634 |
|
|
635 return name; |
|
|
636 } |
|
|
637 |
|
|
638 // Extract one value (scalar, matrix, string, etc.) from stream IS and |
|
|
639 // place it in TC, returning the name of the variable. If the value |
|
|
640 // is tagged as global in the file, return nonzero in GLOBAL. If SWAP |
|
|
641 // is nonzero, swap bytes after reading. |
|
|
642 // |
|
|
643 // The data is expected to be in the following format: |
|
|
644 // |
|
867
|
645 // Header (one per file): |
|
|
646 // ===================== |
|
604
|
647 // |
|
867
|
648 // object type bytes |
|
|
649 // ------ ---- ----- |
|
|
650 // magic number string 10 |
|
604
|
651 // |
|
867
|
652 // float format integer 1 |
|
|
653 // |
|
604
|
654 // |
|
867
|
655 // Data (one set for each item): |
|
|
656 // ============================ |
|
604
|
657 // |
|
867
|
658 // object type bytes |
|
|
659 // ------ ---- ----- |
|
|
660 // name_length integer 4 |
|
604
|
661 // |
|
867
|
662 // name string name_length |
|
604
|
663 // |
|
867
|
664 // doc_length integer 4 |
|
|
665 // |
|
|
666 // doc string doc_length |
|
604
|
667 // |
|
867
|
668 // global flag integer 1 |
|
604
|
669 // |
|
867
|
670 // data type integer 1 |
|
604
|
671 // |
|
867
|
672 // data (one of): |
|
|
673 // |
|
|
674 // scalar: |
|
|
675 // data real 8 |
|
604
|
676 // |
|
867
|
677 // complex scalar: |
|
|
678 // data complex 16 |
|
|
679 // |
|
|
680 // matrix: |
|
|
681 // rows integer 4 |
|
|
682 // columns integer 4 |
|
|
683 // data real r*c*8 |
|
604
|
684 // |
|
867
|
685 // complex matrix: |
|
|
686 // rows integer 4 |
|
|
687 // columns integer 4 |
|
|
688 // data complex r*c*16 |
|
604
|
689 // |
|
867
|
690 // string: |
|
|
691 // length int 4 |
|
|
692 // data string length |
|
604
|
693 // |
|
867
|
694 // range: |
|
|
695 // base real 8 |
|
|
696 // limit real 8 |
|
|
697 // increment real 8 |
|
604
|
698 // |
|
1427
|
699 // string array |
|
|
700 // elements int 4 |
|
|
701 // |
|
|
702 // for each element: |
|
|
703 // length int 4 |
|
|
704 // data string length |
|
|
705 // |
|
604
|
706 // FILENAME is used for error messages. |
|
|
707 |
|
|
708 static char * |
|
2318
|
709 read_binary_data (istream& is, int swap, |
|
|
710 oct_mach_info::float_format fmt, |
|
1755
|
711 const string& filename, int& global, |
|
2086
|
712 octave_value& tc, char *&doc) |
|
604
|
713 { |
|
|
714 char tmp = 0; |
|
|
715 |
|
|
716 FOUR_BYTE_INT name_len = 0, doc_len = 0; |
|
|
717 char *name = 0; |
|
|
718 |
|
|
719 doc = 0; |
|
|
720 |
|
1358
|
721 // We expect to fail here, at the beginning of a record, so not |
|
|
722 // being able to read another name should not result in an error. |
|
867
|
723 |
|
604
|
724 is.read (&name_len, 4); |
|
|
725 if (! is) |
|
867
|
726 return 0; |
|
604
|
727 if (swap) |
|
|
728 swap_4_bytes ((char *) &name_len); |
|
|
729 |
|
|
730 name = new char [name_len+1]; |
|
|
731 name[name_len] = '\0'; |
|
|
732 if (! is.read (name, name_len)) |
|
|
733 goto data_read_error; |
|
|
734 |
|
|
735 is.read (&doc_len, 4); |
|
|
736 if (! is) |
|
|
737 goto data_read_error; |
|
|
738 if (swap) |
|
|
739 swap_4_bytes ((char *) &doc_len); |
|
|
740 |
|
|
741 doc = new char [doc_len+1]; |
|
|
742 doc[doc_len] = '\0'; |
|
|
743 if (! is.read (doc, doc_len)) |
|
|
744 goto data_read_error; |
|
|
745 |
|
|
746 if (! is.read (&tmp, 1)) |
|
|
747 goto data_read_error; |
|
|
748 global = tmp ? 1 : 0; |
|
|
749 |
|
|
750 tmp = 0; |
|
|
751 if (! is.read (&tmp, 1)) |
|
|
752 goto data_read_error; |
|
|
753 |
|
|
754 switch (tmp) |
|
|
755 { |
|
|
756 case 1: |
|
|
757 { |
|
630
|
758 if (! is.read (&tmp, 1)) |
|
604
|
759 goto data_read_error; |
|
630
|
760 double dtmp; |
|
|
761 read_doubles (is, &dtmp, (save_type) tmp, 1, swap, fmt); |
|
774
|
762 if (error_state || ! is) |
|
630
|
763 goto data_read_error; |
|
604
|
764 tc = dtmp; |
|
|
765 } |
|
|
766 break; |
|
|
767 |
|
|
768 case 2: |
|
|
769 { |
|
|
770 FOUR_BYTE_INT nr, nc; |
|
|
771 if (! is.read (&nr, 4)) |
|
|
772 goto data_read_error; |
|
|
773 if (swap) |
|
|
774 swap_4_bytes ((char *) &nr); |
|
|
775 if (! is.read (&nc, 4)) |
|
|
776 goto data_read_error; |
|
|
777 if (swap) |
|
|
778 swap_4_bytes ((char *) &nc); |
|
|
779 if (! is.read (&tmp, 1)) |
|
|
780 goto data_read_error; |
|
|
781 Matrix m (nr, nc); |
|
|
782 double *re = m.fortran_vec (); |
|
|
783 int len = nr * nc; |
|
|
784 read_doubles (is, re, (save_type) tmp, len, swap, fmt); |
|
774
|
785 if (error_state || ! is) |
|
604
|
786 goto data_read_error; |
|
|
787 tc = m; |
|
|
788 } |
|
|
789 break; |
|
|
790 |
|
|
791 case 3: |
|
|
792 { |
|
630
|
793 if (! is.read (&tmp, 1)) |
|
604
|
794 goto data_read_error; |
|
630
|
795 Complex ctmp; |
|
|
796 read_doubles (is, (double *) &ctmp, (save_type) tmp, 2, swap, fmt); |
|
774
|
797 if (error_state || ! is) |
|
630
|
798 goto data_read_error; |
|
604
|
799 tc = ctmp; |
|
|
800 } |
|
|
801 break; |
|
|
802 |
|
|
803 case 4: |
|
|
804 { |
|
|
805 FOUR_BYTE_INT nr, nc; |
|
|
806 if (! is.read (&nr, 4)) |
|
|
807 goto data_read_error; |
|
|
808 if (swap) |
|
|
809 swap_4_bytes ((char *) &nr); |
|
|
810 if (! is.read (&nc, 4)) |
|
|
811 goto data_read_error; |
|
|
812 if (swap) |
|
|
813 swap_4_bytes ((char *) &nc); |
|
|
814 if (! is.read (&tmp, 1)) |
|
|
815 goto data_read_error; |
|
|
816 ComplexMatrix m (nr, nc); |
|
|
817 Complex *im = m.fortran_vec (); |
|
|
818 int len = nr * nc; |
|
630
|
819 read_doubles (is, (double *) im, (save_type) tmp, 2*len, |
|
|
820 swap, fmt); |
|
774
|
821 if (error_state || ! is) |
|
604
|
822 goto data_read_error; |
|
|
823 tc = m; |
|
|
824 } |
|
|
825 break; |
|
|
826 |
|
|
827 case 5: |
|
|
828 { |
|
1427
|
829 FOUR_BYTE_INT len; |
|
604
|
830 if (! is.read (&len, 4)) |
|
|
831 goto data_read_error; |
|
|
832 if (swap) |
|
|
833 swap_4_bytes ((char *) &len); |
|
|
834 char *s = new char [len+1]; |
|
|
835 if (! is.read (s, len)) |
|
|
836 { |
|
|
837 delete [] s; |
|
|
838 goto data_read_error; |
|
|
839 } |
|
|
840 s[len] = '\0'; |
|
|
841 tc = s; |
|
|
842 } |
|
|
843 break; |
|
|
844 |
|
|
845 case 6: |
|
|
846 { |
|
630
|
847 if (! is.read (&tmp, 1)) |
|
|
848 goto data_read_error; |
|
604
|
849 double bas, lim, inc; |
|
|
850 if (! is.read (&bas, 8)) |
|
|
851 goto data_read_error; |
|
|
852 if (swap) |
|
|
853 swap_8_bytes ((char *) &bas); |
|
|
854 if (! is.read (&lim, 8)) |
|
|
855 goto data_read_error; |
|
|
856 if (swap) |
|
|
857 swap_8_bytes ((char *) &lim); |
|
|
858 if (! is.read (&inc, 8)) |
|
|
859 goto data_read_error; |
|
|
860 if (swap) |
|
|
861 swap_8_bytes ((char *) &inc); |
|
|
862 Range r (bas, lim, inc); |
|
|
863 tc = r; |
|
|
864 } |
|
|
865 break; |
|
|
866 |
|
1427
|
867 case 7: |
|
|
868 { |
|
|
869 FOUR_BYTE_INT elements; |
|
|
870 if (! is.read (&elements, 4)) |
|
|
871 goto data_read_error; |
|
|
872 if (swap) |
|
|
873 swap_4_bytes ((char *) &elements); |
|
1572
|
874 charMatrix chm (elements, 0); |
|
|
875 int max_len = 0; |
|
1427
|
876 for (int i = 0; i < elements; i++) |
|
|
877 { |
|
|
878 FOUR_BYTE_INT len; |
|
|
879 if (! is.read (&len, 4)) |
|
|
880 goto data_read_error; |
|
|
881 if (swap) |
|
|
882 swap_4_bytes ((char *) &len); |
|
2497
|
883 char *tmp = new char [len+1]; |
|
1427
|
884 if (! is.read (tmp, len)) |
|
|
885 { |
|
|
886 delete [] tmp; |
|
|
887 goto data_read_error; |
|
|
888 } |
|
1572
|
889 if (len > max_len) |
|
|
890 { |
|
|
891 max_len = len; |
|
|
892 chm.resize (elements, max_len, 0); |
|
|
893 } |
|
2497
|
894 tmp [len] = '\0'; |
|
1572
|
895 chm.insert (tmp, i, 0); |
|
1427
|
896 delete [] tmp; |
|
|
897 } |
|
2499
|
898 tc = octave_value (chm, true); |
|
1427
|
899 } |
|
|
900 break; |
|
|
901 |
|
604
|
902 default: |
|
|
903 data_read_error: |
|
1755
|
904 error ("load: trouble reading binary file `%s'", filename.c_str ()); |
|
604
|
905 delete [] name; |
|
|
906 name = 0; |
|
|
907 break; |
|
|
908 } |
|
|
909 |
|
|
910 return name; |
|
|
911 } |
|
|
912 |
|
2511
|
913 static void |
|
|
914 get_lines_and_columns (istream& is, const string& filename, int& nr, int& nc) |
|
|
915 { |
|
|
916 streampos pos = is.tellg (); |
|
|
917 |
|
|
918 int file_line_number = 0; |
|
|
919 |
|
|
920 nr = 0; |
|
|
921 nc = 0; |
|
|
922 |
|
2795
|
923 while (is && ! error_state) |
|
2511
|
924 { |
|
2795
|
925 string buf; |
|
|
926 |
|
|
927 char c; |
|
|
928 while (is.get (c)) |
|
|
929 { |
|
|
930 if (c == '\n') |
|
|
931 break; |
|
|
932 |
|
|
933 buf += c; |
|
|
934 } |
|
2511
|
935 |
|
|
936 file_line_number++; |
|
|
937 |
|
2795
|
938 size_t beg = buf.find_first_not_of (" \t"); |
|
|
939 |
|
|
940 int tmp_nc = 0; |
|
|
941 |
|
|
942 while (beg != NPOS) |
|
2511
|
943 { |
|
2795
|
944 tmp_nc++; |
|
|
945 |
|
|
946 size_t end = buf.find_first_of (" \t", beg); |
|
|
947 |
|
|
948 if (end != NPOS) |
|
|
949 beg = buf.find_first_not_of (" \t", end); |
|
|
950 else |
|
|
951 break; |
|
|
952 } |
|
|
953 |
|
|
954 if (tmp_nc > 0) |
|
|
955 { |
|
2511
|
956 if (nc == 0) |
|
|
957 { |
|
|
958 nc = tmp_nc; |
|
|
959 nr++; |
|
|
960 } |
|
|
961 else if (nc == tmp_nc) |
|
|
962 nr++; |
|
|
963 else |
|
|
964 error ("load: %s: inconsistent number of columns near line %d", |
|
|
965 filename.c_str (), file_line_number); |
|
|
966 } |
|
|
967 } |
|
|
968 |
|
|
969 if (nr == 0 || nc == 0) |
|
|
970 error ("load: file `%s' seems to be empty!", filename.c_str ()); |
|
|
971 |
|
|
972 is.clear (); |
|
|
973 is.seekg (pos, ios::beg); |
|
|
974 } |
|
|
975 |
|
|
976 // Extract a matrix from a file of numbers only. |
|
|
977 // |
|
|
978 // Comments are not allowed. The file should only have numeric values. |
|
|
979 // |
|
|
980 // Reads the file twice. Once to find the number of rows and columns, |
|
|
981 // and once to extract the matrix. |
|
|
982 // |
|
|
983 // FILENAME is used for error messages. |
|
|
984 // |
|
|
985 // This format provides no way to tag the data as global. |
|
|
986 |
|
|
987 static char * |
|
|
988 read_mat_ascii_data (istream& is, const string& filename, |
|
|
989 octave_value& tc) |
|
|
990 { |
|
|
991 char *name = 0; |
|
|
992 |
|
|
993 string varname; |
|
|
994 |
|
|
995 size_t pos = filename.find ('.'); |
|
|
996 |
|
|
997 if (pos != NPOS) |
|
|
998 varname = filename.substr (0, pos); |
|
|
999 else |
|
|
1000 varname = filename; |
|
|
1001 |
|
|
1002 if (valid_identifier (varname.c_str ())) |
|
|
1003 { |
|
|
1004 int nr = 0; |
|
|
1005 int nc = 0; |
|
|
1006 |
|
|
1007 get_lines_and_columns (is, filename, nr, nc); |
|
|
1008 |
|
2795
|
1009 if (! error_state && nr > 0 && nc > 0) |
|
2511
|
1010 { |
|
|
1011 Matrix tmp (nr, nc); |
|
|
1012 |
|
|
1013 is >> tmp; |
|
|
1014 |
|
|
1015 if (is) |
|
|
1016 { |
|
|
1017 tc = tmp; |
|
|
1018 |
|
|
1019 name = strsave (varname.c_str ()); |
|
|
1020 } |
|
|
1021 else |
|
|
1022 error ("load: failed to read matrix from file `%s'", |
|
|
1023 filename.c_str ()); |
|
|
1024 } |
|
|
1025 else |
|
|
1026 error ("load: unable to extract matrix size from file `%s'", |
|
|
1027 filename.c_str ()); |
|
|
1028 } |
|
|
1029 else |
|
|
1030 error ("load: unable to convert filename `%s' to valid identifier", |
|
|
1031 filename.c_str ()); |
|
|
1032 |
|
|
1033 return name; |
|
|
1034 } |
|
|
1035 |
|
604
|
1036 // Read LEN elements of data from IS in the format specified by |
|
|
1037 // PRECISION, placing the result in DATA. If SWAP is nonzero, swap |
|
|
1038 // the bytes of each element before copying to DATA. FLT_FMT |
|
|
1039 // specifies the format of the data if we are reading floating point |
|
|
1040 // numbers. |
|
|
1041 |
|
|
1042 static void |
|
|
1043 read_mat_binary_data (istream& is, double *data, int precision, |
|
2318
|
1044 int len, int swap, |
|
|
1045 oct_mach_info::float_format flt_fmt) |
|
604
|
1046 { |
|
|
1047 switch (precision) |
|
|
1048 { |
|
|
1049 case 0: |
|
630
|
1050 read_doubles (is, data, LS_DOUBLE, len, swap, flt_fmt); |
|
604
|
1051 break; |
|
|
1052 |
|
|
1053 case 1: |
|
630
|
1054 read_doubles (is, data, LS_FLOAT, len, swap, flt_fmt); |
|
604
|
1055 break; |
|
|
1056 |
|
|
1057 case 2: |
|
|
1058 read_doubles (is, data, LS_INT, len, swap, flt_fmt); |
|
|
1059 break; |
|
|
1060 |
|
|
1061 case 3: |
|
|
1062 read_doubles (is, data, LS_SHORT, len, swap, flt_fmt); |
|
|
1063 break; |
|
|
1064 |
|
|
1065 case 4: |
|
|
1066 read_doubles (is, data, LS_U_SHORT, len, swap, flt_fmt); |
|
|
1067 break; |
|
|
1068 |
|
|
1069 case 5: |
|
|
1070 read_doubles (is, data, LS_U_CHAR, len, swap, flt_fmt); |
|
|
1071 break; |
|
|
1072 |
|
|
1073 default: |
|
|
1074 break; |
|
|
1075 } |
|
|
1076 } |
|
|
1077 |
|
|
1078 static int |
|
|
1079 read_mat_file_header (istream& is, int& swap, FOUR_BYTE_INT& mopt, |
|
|
1080 FOUR_BYTE_INT& nr, FOUR_BYTE_INT& nc, |
|
|
1081 FOUR_BYTE_INT& imag, FOUR_BYTE_INT& len, |
|
|
1082 int quiet = 0) |
|
|
1083 { |
|
671
|
1084 swap = 0; |
|
|
1085 |
|
1358
|
1086 // We expect to fail here, at the beginning of a record, so not |
|
|
1087 // being able to read another mopt value should not result in an |
|
|
1088 // error. |
|
911
|
1089 |
|
604
|
1090 is.read (&mopt, 4); |
|
|
1091 if (! is) |
|
911
|
1092 return 1; |
|
604
|
1093 |
|
|
1094 if (! is.read (&nr, 4)) |
|
|
1095 goto data_read_error; |
|
|
1096 |
|
|
1097 if (! is.read (&nc, 4)) |
|
|
1098 goto data_read_error; |
|
|
1099 |
|
|
1100 if (! is.read (&imag, 4)) |
|
|
1101 goto data_read_error; |
|
|
1102 |
|
|
1103 if (! is.read (&len, 4)) |
|
|
1104 goto data_read_error; |
|
|
1105 |
|
|
1106 // If mopt is nonzero and the byte order is swapped, mopt will be |
|
|
1107 // bigger than we expect, so we swap bytes. |
|
|
1108 // |
|
|
1109 // If mopt is zero, it means the file was written on a little endian |
|
|
1110 // machine, and we only need to swap if we are running on a big endian |
|
|
1111 // machine. |
|
|
1112 // |
|
|
1113 // Gag me. |
|
|
1114 |
|
2318
|
1115 if (oct_mach_info::words_big_endian () && mopt == 0) |
|
604
|
1116 swap = 1; |
|
|
1117 |
|
1358
|
1118 // mopt is signed, therefore byte swap may result in negative value. |
|
911
|
1119 |
|
|
1120 if (mopt > 9999 || mopt < 0) |
|
604
|
1121 swap = 1; |
|
|
1122 |
|
|
1123 if (swap) |
|
|
1124 { |
|
|
1125 swap_4_bytes ((char *) &mopt); |
|
|
1126 swap_4_bytes ((char *) &nr); |
|
|
1127 swap_4_bytes ((char *) &nc); |
|
|
1128 swap_4_bytes ((char *) &imag); |
|
|
1129 swap_4_bytes ((char *) &len); |
|
|
1130 } |
|
|
1131 |
|
911
|
1132 if (mopt > 9999 || mopt < 0 || imag > 1 || imag < 0) |
|
604
|
1133 { |
|
|
1134 if (! quiet) |
|
|
1135 error ("load: can't read binary file"); |
|
|
1136 return -1; |
|
|
1137 } |
|
|
1138 |
|
|
1139 return 0; |
|
|
1140 |
|
|
1141 data_read_error: |
|
|
1142 return -1; |
|
|
1143 } |
|
|
1144 |
|
617
|
1145 // We don't just use a cast here, because we need to be able to detect |
|
|
1146 // possible errors. |
|
|
1147 |
|
2318
|
1148 static oct_mach_info::float_format |
|
|
1149 mopt_digit_to_float_format (int mach) |
|
617
|
1150 { |
|
2318
|
1151 oct_mach_info::float_format flt_fmt = oct_mach_info::unknown; |
|
619
|
1152 |
|
617
|
1153 switch (mach) |
|
|
1154 { |
|
|
1155 case 0: |
|
2318
|
1156 flt_fmt = oct_mach_info::ieee_little_endian; |
|
617
|
1157 break; |
|
|
1158 |
|
|
1159 case 1: |
|
2318
|
1160 flt_fmt = oct_mach_info::ieee_big_endian; |
|
617
|
1161 break; |
|
|
1162 |
|
|
1163 case 2: |
|
2318
|
1164 flt_fmt = oct_mach_info::vax_d; |
|
617
|
1165 break; |
|
|
1166 |
|
|
1167 case 3: |
|
2318
|
1168 flt_fmt = oct_mach_info::vax_g; |
|
617
|
1169 break; |
|
|
1170 |
|
|
1171 case 4: |
|
2318
|
1172 flt_fmt = oct_mach_info::cray; |
|
617
|
1173 break; |
|
|
1174 |
|
|
1175 default: |
|
2318
|
1176 flt_fmt = oct_mach_info::unknown; |
|
617
|
1177 break; |
|
|
1178 } |
|
619
|
1179 |
|
|
1180 return flt_fmt; |
|
617
|
1181 } |
|
619
|
1182 |
|
2318
|
1183 static int |
|
|
1184 float_format_to_mopt_digit (oct_mach_info::float_format flt_fmt) |
|
|
1185 { |
|
|
1186 int retval = -1; |
|
|
1187 |
|
|
1188 switch (flt_fmt) |
|
|
1189 { |
|
|
1190 case oct_mach_info::ieee_little_endian: |
|
|
1191 retval = 0; |
|
|
1192 break; |
|
|
1193 |
|
|
1194 case oct_mach_info::ieee_big_endian: |
|
|
1195 retval = 1; |
|
|
1196 break; |
|
|
1197 |
|
|
1198 case oct_mach_info::vax_d: |
|
|
1199 retval = 2; |
|
|
1200 break; |
|
|
1201 |
|
|
1202 case oct_mach_info::vax_g: |
|
|
1203 retval = 3; |
|
|
1204 break; |
|
|
1205 |
|
|
1206 case oct_mach_info::cray: |
|
|
1207 retval = 4; |
|
|
1208 break; |
|
|
1209 |
|
|
1210 default: |
|
|
1211 break; |
|
|
1212 } |
|
|
1213 |
|
|
1214 return retval; |
|
|
1215 } |
|
|
1216 |
|
604
|
1217 // Extract one value (scalar, matrix, string, etc.) from stream IS and |
|
|
1218 // place it in TC, returning the name of the variable. |
|
|
1219 // |
|
|
1220 // The data is expected to be in Matlab's .mat format, though not all |
|
|
1221 // the features of that format are supported. |
|
|
1222 // |
|
|
1223 // FILENAME is used for error messages. |
|
|
1224 // |
|
|
1225 // This format provides no way to tag the data as global. |
|
|
1226 |
|
|
1227 static char * |
|
1755
|
1228 read_mat_binary_data (istream& is, const string& filename, |
|
2086
|
1229 octave_value& tc) |
|
604
|
1230 { |
|
1358
|
1231 // These are initialized here instead of closer to where they are |
|
|
1232 // first used to avoid errors from gcc about goto crossing |
|
|
1233 // initialization of variable. |
|
604
|
1234 |
|
|
1235 Matrix re; |
|
2318
|
1236 oct_mach_info::float_format flt_fmt = oct_mach_info::unknown; |
|
604
|
1237 char *name = 0; |
|
|
1238 int swap = 0, type = 0, prec = 0, mach = 0, dlen = 0; |
|
|
1239 |
|
|
1240 FOUR_BYTE_INT mopt, nr, nc, imag, len; |
|
|
1241 |
|
|
1242 int err = read_mat_file_header (is, swap, mopt, nr, nc, imag, len); |
|
|
1243 if (err) |
|
|
1244 { |
|
|
1245 if (err < 0) |
|
|
1246 goto data_read_error; |
|
|
1247 else |
|
|
1248 return 0; |
|
|
1249 } |
|
|
1250 |
|
|
1251 type = mopt % 10; // Full, sparse, etc. |
|
|
1252 mopt /= 10; // Eliminate first digit. |
|
|
1253 prec = mopt % 10; // double, float, int, etc. |
|
|
1254 mopt /= 100; // Skip unused third digit too. |
|
|
1255 mach = mopt % 10; // IEEE, VAX, etc. |
|
|
1256 |
|
2318
|
1257 flt_fmt = mopt_digit_to_float_format (mach); |
|
|
1258 |
|
|
1259 if (flt_fmt == oct_mach_info::unknown) |
|
604
|
1260 { |
|
|
1261 error ("load: unrecognized binary format!"); |
|
|
1262 return 0; |
|
|
1263 } |
|
|
1264 |
|
|
1265 if (type != 0 && type != 1) |
|
|
1266 { |
|
|
1267 error ("load: can't read sparse matrices"); |
|
|
1268 return 0; |
|
|
1269 } |
|
|
1270 |
|
|
1271 if (imag && type == 1) |
|
|
1272 { |
|
|
1273 error ("load: encountered complex matrix with string flag set!"); |
|
|
1274 return 0; |
|
|
1275 } |
|
|
1276 |
|
2345
|
1277 // LEN includes the terminating character, and the file is also |
|
2436
|
1278 // supposed to include it, but apparently not all files do. Either |
|
|
1279 // way, I think this should work. |
|
2345
|
1280 |
|
2436
|
1281 name = new char [len+1]; |
|
604
|
1282 if (! is.read (name, len)) |
|
|
1283 goto data_read_error; |
|
2436
|
1284 name[len] = '\0'; |
|
604
|
1285 |
|
|
1286 dlen = nr * nc; |
|
|
1287 if (dlen < 0) |
|
|
1288 goto data_read_error; |
|
|
1289 |
|
|
1290 re.resize (nr, nc); |
|
|
1291 |
|
|
1292 read_mat_binary_data (is, re.fortran_vec (), prec, dlen, swap, flt_fmt); |
|
|
1293 |
|
|
1294 if (! is || error_state) |
|
|
1295 { |
|
|
1296 error ("load: reading matrix data for `%s'", name); |
|
|
1297 goto data_read_error; |
|
|
1298 } |
|
|
1299 |
|
|
1300 if (imag) |
|
|
1301 { |
|
|
1302 Matrix im (nr, nc); |
|
|
1303 |
|
|
1304 read_mat_binary_data (is, im.fortran_vec (), prec, dlen, swap, flt_fmt); |
|
|
1305 |
|
|
1306 if (! is || error_state) |
|
|
1307 { |
|
|
1308 error ("load: reading imaginary matrix data for `%s'", name); |
|
|
1309 goto data_read_error; |
|
|
1310 } |
|
|
1311 |
|
|
1312 ComplexMatrix ctmp (nr, nc); |
|
|
1313 |
|
|
1314 for (int j = 0; j < nc; j++) |
|
|
1315 for (int i = 0; i < nr; i++) |
|
2305
|
1316 ctmp (i, j) = Complex (re (i, j), im (i, j)); |
|
604
|
1317 |
|
|
1318 tc = ctmp; |
|
|
1319 } |
|
|
1320 else |
|
|
1321 tc = re; |
|
|
1322 |
|
1427
|
1323 if (type == 1) |
|
604
|
1324 tc = tc.convert_to_str (); |
|
|
1325 |
|
|
1326 return name; |
|
|
1327 |
|
|
1328 data_read_error: |
|
1755
|
1329 error ("load: trouble reading binary file `%s'", filename.c_str ()); |
|
604
|
1330 delete [] name; |
|
|
1331 return 0; |
|
|
1332 } |
|
|
1333 |
|
|
1334 // Return nonzero if NAME matches one of the given globbing PATTERNS. |
|
|
1335 |
|
|
1336 static int |
|
1755
|
1337 matches_patterns (const string_vector& patterns, int pat_idx, |
|
1792
|
1338 int num_pat, const string& name) |
|
604
|
1339 { |
|
1755
|
1340 for (int i = pat_idx; i < num_pat; i++) |
|
604
|
1341 { |
|
1792
|
1342 glob_match pattern (patterns[i]); |
|
|
1343 if (pattern.match (name)) |
|
604
|
1344 return 1; |
|
|
1345 } |
|
|
1346 return 0; |
|
|
1347 } |
|
|
1348 |
|
|
1349 static int |
|
|
1350 read_binary_file_header (istream& is, int& swap, |
|
2318
|
1351 oct_mach_info::float_format& flt_fmt, |
|
|
1352 int quiet = 0) |
|
604
|
1353 { |
|
|
1354 int magic_len = 10; |
|
|
1355 char magic [magic_len+1]; |
|
|
1356 is.read (magic, magic_len); |
|
|
1357 magic[magic_len] = '\0'; |
|
|
1358 if (strncmp (magic, "Octave-1-L", magic_len) == 0) |
|
2318
|
1359 swap = oct_mach_info::words_big_endian (); |
|
604
|
1360 else if (strncmp (magic, "Octave-1-B", magic_len) == 0) |
|
2318
|
1361 swap = ! oct_mach_info::words_big_endian (); |
|
604
|
1362 else |
|
|
1363 { |
|
|
1364 if (! quiet) |
|
|
1365 error ("load: can't read binary file"); |
|
|
1366 return -1; |
|
|
1367 } |
|
|
1368 |
|
|
1369 char tmp = 0; |
|
|
1370 is.read (&tmp, 1); |
|
|
1371 |
|
2318
|
1372 flt_fmt = mopt_digit_to_float_format (tmp); |
|
|
1373 |
|
|
1374 if (flt_fmt == oct_mach_info::unknown) |
|
604
|
1375 { |
|
|
1376 if (! quiet) |
|
|
1377 error ("load: unrecognized binary format!"); |
|
|
1378 return -1; |
|
|
1379 } |
|
|
1380 |
|
|
1381 return 0; |
|
|
1382 } |
|
|
1383 |
|
|
1384 static load_save_format |
|
1750
|
1385 get_file_format (const string& fname, const string& orig_fname) |
|
604
|
1386 { |
|
|
1387 load_save_format retval = LS_UNKNOWN; |
|
|
1388 |
|
1750
|
1389 ifstream file (fname.c_str ()); |
|
604
|
1390 |
|
|
1391 if (! file) |
|
|
1392 { |
|
1750
|
1393 error ("load: couldn't open input file `%s'", orig_fname.c_str ()); |
|
604
|
1394 return retval; |
|
|
1395 } |
|
|
1396 |
|
|
1397 int swap; |
|
2318
|
1398 oct_mach_info::float_format flt_fmt = oct_mach_info::unknown; |
|
604
|
1399 |
|
|
1400 if (read_binary_file_header (file, swap, flt_fmt, 1) == 0) |
|
|
1401 retval = LS_BINARY; |
|
|
1402 else |
|
|
1403 { |
|
|
1404 file.seekg (0, ios::beg); |
|
|
1405 |
|
|
1406 FOUR_BYTE_INT mopt, nr, nc, imag, len; |
|
1180
|
1407 |
|
|
1408 int err = read_mat_file_header (file, swap, mopt, nr, nc, imag, len, 1); |
|
|
1409 |
|
|
1410 if (! err) |
|
604
|
1411 retval = LS_MAT_BINARY; |
|
|
1412 else |
|
|
1413 { |
|
2511
|
1414 file.clear (); |
|
604
|
1415 file.seekg (0, ios::beg); |
|
|
1416 |
|
|
1417 char *tmp = extract_keyword (file, "name"); |
|
1180
|
1418 |
|
604
|
1419 if (tmp) |
|
1180
|
1420 { |
|
|
1421 retval = LS_ASCII; |
|
2511
|
1422 |
|
1180
|
1423 delete [] tmp; |
|
|
1424 } |
|
2511
|
1425 else |
|
|
1426 { |
|
|
1427 // Try reading the file as numbers only, determining the |
|
|
1428 // number of rows and columns from the data. We don't |
|
|
1429 // even bother to check to see if the first item in the |
|
|
1430 // file is a number, so that get_complete_line() can |
|
|
1431 // skip any comments that might appear at the top of the |
|
|
1432 // file. |
|
|
1433 |
|
|
1434 retval = LS_MAT_ASCII; |
|
|
1435 } |
|
604
|
1436 } |
|
|
1437 } |
|
|
1438 |
|
|
1439 file.close (); |
|
|
1440 |
|
|
1441 if (retval == LS_UNKNOWN) |
|
1750
|
1442 error ("load: unable to determine file format for `%s'", |
|
|
1443 orig_fname.c_str ()); |
|
604
|
1444 |
|
|
1445 return retval; |
|
|
1446 } |
|
|
1447 |
|
2086
|
1448 static octave_value_list |
|
1755
|
1449 do_load (istream& stream, const string& orig_fname, int force, |
|
2318
|
1450 load_save_format format, oct_mach_info::float_format flt_fmt, |
|
1755
|
1451 int list_only, int swap, int verbose, const string_vector& argv, |
|
|
1452 int argv_idx, int argc, int nargout) |
|
604
|
1453 { |
|
2086
|
1454 octave_value_list retval; |
|
604
|
1455 |
|
621
|
1456 ostrstream output_buf; |
|
604
|
1457 int count = 0; |
|
|
1458 for (;;) |
|
|
1459 { |
|
|
1460 int global = 0; |
|
2086
|
1461 octave_value tc; |
|
604
|
1462 |
|
|
1463 char *name = 0; |
|
|
1464 char *doc = 0; |
|
|
1465 |
|
|
1466 switch (format) |
|
|
1467 { |
|
|
1468 case LS_ASCII: |
|
|
1469 name = read_ascii_data (stream, orig_fname, global, tc); |
|
|
1470 break; |
|
|
1471 |
|
|
1472 case LS_BINARY: |
|
|
1473 name = read_binary_data (stream, swap, flt_fmt, orig_fname, |
|
|
1474 global, tc, doc); |
|
|
1475 break; |
|
|
1476 |
|
2511
|
1477 case LS_MAT_ASCII: |
|
|
1478 name = read_mat_ascii_data (stream, orig_fname, tc); |
|
|
1479 break; |
|
|
1480 |
|
604
|
1481 case LS_MAT_BINARY: |
|
|
1482 name = read_mat_binary_data (stream, orig_fname, tc); |
|
|
1483 break; |
|
|
1484 |
|
|
1485 default: |
|
775
|
1486 gripe_unrecognized_data_fmt ("load"); |
|
604
|
1487 break; |
|
|
1488 } |
|
|
1489 |
|
867
|
1490 if (error_state || stream.eof () || ! name) |
|
604
|
1491 { |
|
867
|
1492 delete [] name; |
|
|
1493 delete [] doc; |
|
2511
|
1494 |
|
604
|
1495 break; |
|
|
1496 } |
|
|
1497 else if (! error_state && name) |
|
|
1498 { |
|
|
1499 if (tc.is_defined ()) |
|
|
1500 { |
|
1755
|
1501 if (argv_idx == argc |
|
|
1502 || matches_patterns (argv, argv_idx, argc, name)) |
|
604
|
1503 { |
|
|
1504 count++; |
|
621
|
1505 if (list_only) |
|
|
1506 { |
|
|
1507 if (verbose) |
|
|
1508 { |
|
|
1509 if (count == 1) |
|
|
1510 output_buf |
|
|
1511 << "type rows cols name\n" |
|
|
1512 << "==== ==== ==== ====\n"; |
|
|
1513 |
|
2371
|
1514 string type = tc.type_name (); |
|
|
1515 output_buf.form ("%-16s", type.c_str ()); |
|
621
|
1516 output_buf.form ("%7d", tc.rows ()); |
|
|
1517 output_buf.form ("%7d", tc.columns ()); |
|
|
1518 output_buf << " "; |
|
|
1519 } |
|
|
1520 output_buf << name << "\n"; |
|
|
1521 } |
|
|
1522 else |
|
|
1523 { |
|
|
1524 install_loaded_variable (force, name, tc, global, doc); |
|
|
1525 } |
|
604
|
1526 } |
|
2511
|
1527 |
|
|
1528 delete [] name; |
|
|
1529 delete [] doc; |
|
|
1530 |
|
|
1531 // Only attempt to read one item from a headless text file. |
|
|
1532 |
|
|
1533 if (format == LS_MAT_ASCII) |
|
|
1534 break; |
|
604
|
1535 } |
|
|
1536 else |
|
|
1537 error ("load: unable to load variable `%s'", name); |
|
|
1538 } |
|
|
1539 else |
|
|
1540 { |
|
|
1541 if (count == 0) |
|
|
1542 error ("load: are you sure `%s' is an Octave data file?", |
|
1755
|
1543 orig_fname.c_str ()); |
|
604
|
1544 |
|
867
|
1545 delete [] name; |
|
|
1546 delete [] doc; |
|
2511
|
1547 |
|
604
|
1548 break; |
|
|
1549 } |
|
|
1550 } |
|
|
1551 |
|
621
|
1552 if (list_only && count) |
|
|
1553 { |
|
2095
|
1554 output_buf << ends; |
|
|
1555 |
|
|
1556 char *msg = output_buf.str (); |
|
|
1557 |
|
621
|
1558 if (nargout > 0) |
|
2095
|
1559 retval = msg; |
|
621
|
1560 else |
|
2095
|
1561 octave_stdout << msg; |
|
|
1562 |
|
|
1563 delete [] msg; |
|
621
|
1564 } |
|
|
1565 |
|
863
|
1566 return retval; |
|
|
1567 } |
|
|
1568 |
|
1957
|
1569 DEFUN_TEXT (load, args, nargout, |
|
910
|
1570 "load [-force] [-ascii] [-binary] [-mat-binary] file [pattern ...]\n\ |
|
863
|
1571 \n\ |
|
|
1572 Load variables from a file.\n\ |
|
|
1573 \n\ |
|
|
1574 If no argument is supplied to select a format, load tries to read the |
|
|
1575 named file as an Octave binary, then as a .mat file, and then as an |
|
|
1576 Octave text file.\n\ |
|
|
1577 \n\ |
|
|
1578 If the option -force is given, variables with the same names as those |
|
|
1579 found in the file will be replaced with the values read from the file.") |
|
|
1580 { |
|
2086
|
1581 octave_value_list retval; |
|
863
|
1582 |
|
1755
|
1583 int argc = args.length () + 1; |
|
|
1584 |
|
1968
|
1585 string_vector argv = args.make_argv ("load"); |
|
1755
|
1586 |
|
|
1587 if (error_state) |
|
|
1588 return retval; |
|
863
|
1589 |
|
|
1590 int force = 0; |
|
|
1591 |
|
1358
|
1592 // It isn't necessary to have the default load format stored in a |
|
|
1593 // user preference variable since we can determine the type of file |
|
|
1594 // as we are reading. |
|
863
|
1595 |
|
|
1596 load_save_format format = LS_UNKNOWN; |
|
|
1597 |
|
|
1598 int list_only = 0; |
|
|
1599 int verbose = 0; |
|
|
1600 |
|
1755
|
1601 int i; |
|
|
1602 for (i = 1; i < argc; i++) |
|
863
|
1603 { |
|
1755
|
1604 if (argv[i] == "-force" || argv[i] == "-f") |
|
863
|
1605 { |
|
|
1606 force++; |
|
|
1607 } |
|
1755
|
1608 else if (argv[i] == "-list" || argv[i] == "-l") |
|
863
|
1609 { |
|
|
1610 list_only = 1; |
|
|
1611 } |
|
1755
|
1612 else if (argv[i] == "-verbose" || argv[i] == "-v") |
|
863
|
1613 { |
|
|
1614 verbose = 1; |
|
|
1615 } |
|
1755
|
1616 else if (argv[i] == "-ascii" || argv[i] == "-a") |
|
863
|
1617 { |
|
|
1618 format = LS_ASCII; |
|
|
1619 } |
|
1755
|
1620 else if (argv[i] == "-binary" || argv[i] == "-b") |
|
863
|
1621 { |
|
|
1622 format = LS_BINARY; |
|
|
1623 } |
|
1755
|
1624 else if (argv[i] == "-mat-binary" || argv[i] == "-m") |
|
863
|
1625 { |
|
|
1626 format = LS_MAT_BINARY; |
|
|
1627 } |
|
|
1628 else |
|
|
1629 break; |
|
|
1630 } |
|
|
1631 |
|
1755
|
1632 if (i == argc) |
|
863
|
1633 { |
|
2057
|
1634 print_usage ("load"); |
|
863
|
1635 return retval; |
|
|
1636 } |
|
|
1637 |
|
1755
|
1638 string orig_fname = argv[i]; |
|
863
|
1639 |
|
2318
|
1640 oct_mach_info::float_format flt_fmt = oct_mach_info::unknown; |
|
863
|
1641 |
|
|
1642 int swap = 0; |
|
|
1643 |
|
1755
|
1644 if (argv[i] == "-") |
|
863
|
1645 { |
|
1755
|
1646 i++; |
|
863
|
1647 |
|
|
1648 if (format != LS_UNKNOWN) |
|
|
1649 { |
|
1358
|
1650 // XXX FIXME XXX -- if we have already seen EOF on a |
|
|
1651 // previous call, how do we fix up the state of cin so that |
|
|
1652 // we can get additional input? I'm afraid that we can't |
|
|
1653 // fix this using cin only. |
|
863
|
1654 |
|
|
1655 retval = do_load (cin, orig_fname, force, format, flt_fmt, |
|
1755
|
1656 list_only, swap, verbose, argv, i, argc, |
|
863
|
1657 nargout); |
|
|
1658 } |
|
|
1659 else |
|
|
1660 error ("load: must specify file format if reading from stdin"); |
|
|
1661 } |
|
|
1662 else |
|
|
1663 { |
|
1755
|
1664 string fname = oct_tilde_expand (argv[i]); |
|
863
|
1665 |
|
|
1666 if (format == LS_UNKNOWN) |
|
|
1667 format = get_file_format (fname, orig_fname); |
|
|
1668 |
|
|
1669 if (format != LS_UNKNOWN) |
|
|
1670 { |
|
1755
|
1671 i++; |
|
863
|
1672 |
|
|
1673 unsigned mode = ios::in; |
|
|
1674 if (format == LS_BINARY || format == LS_MAT_BINARY) |
|
|
1675 mode |= ios::bin; |
|
|
1676 |
|
1750
|
1677 ifstream file (fname.c_str (), mode); |
|
863
|
1678 |
|
|
1679 if (file) |
|
|
1680 { |
|
|
1681 if (format == LS_BINARY) |
|
|
1682 { |
|
|
1683 if (read_binary_file_header (file, swap, flt_fmt) < 0) |
|
|
1684 { |
|
|
1685 file.close (); |
|
|
1686 return retval; |
|
|
1687 } |
|
|
1688 } |
|
|
1689 |
|
|
1690 retval = do_load (file, orig_fname, force, format, |
|
|
1691 flt_fmt, list_only, swap, verbose, |
|
1755
|
1692 argv, i, argc, nargout); |
|
863
|
1693 |
|
|
1694 file.close (); |
|
|
1695 } |
|
|
1696 else |
|
1755
|
1697 error ("load: couldn't open input file `%s'", |
|
|
1698 orig_fname.c_str ()); |
|
863
|
1699 } |
|
|
1700 } |
|
604
|
1701 |
|
|
1702 return retval; |
|
|
1703 } |
|
|
1704 |
|
|
1705 // Return nonzero if PATTERN has any special globbing chars in it. |
|
|
1706 |
|
|
1707 static int |
|
1755
|
1708 glob_pattern_p (const string& pattern) |
|
604
|
1709 { |
|
|
1710 int open = 0; |
|
|
1711 |
|
1755
|
1712 int len = pattern.length (); |
|
|
1713 |
|
|
1714 for (int i = 0; i < len; i++) |
|
604
|
1715 { |
|
1755
|
1716 char c = pattern[i]; |
|
|
1717 |
|
604
|
1718 switch (c) |
|
|
1719 { |
|
|
1720 case '?': |
|
|
1721 case '*': |
|
|
1722 return 1; |
|
|
1723 |
|
|
1724 case '[': // Only accept an open brace if there is a close |
|
|
1725 open++; // brace to match it. Bracket expressions must be |
|
|
1726 continue; // complete, according to Posix.2 |
|
|
1727 |
|
|
1728 case ']': |
|
|
1729 if (open) |
|
|
1730 return 1; |
|
|
1731 continue; |
|
|
1732 |
|
|
1733 case '\\': |
|
1755
|
1734 if (i == len - 1) |
|
604
|
1735 return 0; |
|
|
1736 |
|
|
1737 default: |
|
|
1738 continue; |
|
|
1739 } |
|
|
1740 } |
|
|
1741 |
|
|
1742 return 0; |
|
|
1743 } |
|
|
1744 |
|
618
|
1745 // MAX_VAL and MIN_VAL are assumed to have integral values even though |
|
|
1746 // they are stored in doubles. |
|
|
1747 |
|
604
|
1748 static save_type |
|
|
1749 get_save_type (double max_val, double min_val) |
|
|
1750 { |
|
|
1751 save_type st = LS_DOUBLE; |
|
|
1752 |
|
|
1753 if (max_val < 256 && min_val > -1) |
|
|
1754 st = LS_U_CHAR; |
|
|
1755 else if (max_val < 65536 && min_val > -1) |
|
|
1756 st = LS_U_SHORT; |
|
618
|
1757 else if (max_val < 4294967295 && min_val > -1) |
|
|
1758 st = LS_U_INT; |
|
|
1759 else if (max_val < 128 && min_val >= -128) |
|
|
1760 st = LS_CHAR; |
|
604
|
1761 else if (max_val < 32768 && min_val >= -32768) |
|
|
1762 st = LS_SHORT; |
|
|
1763 else if (max_val < 2147483648 && min_val > -2147483648) |
|
|
1764 st = LS_INT; |
|
|
1765 |
|
|
1766 return st; |
|
|
1767 } |
|
|
1768 |
|
|
1769 // Save the data from TC along with the corresponding NAME, help |
|
|
1770 // string DOC, and global flag MARK_AS_GLOBAL on stream OS in the |
|
1427
|
1771 // binary format described above for read_binary_data. |
|
604
|
1772 |
|
|
1773 static int |
|
2086
|
1774 save_binary_data (ostream& os, const octave_value& tc, |
|
1755
|
1775 const string& name, const string& doc, |
|
|
1776 int mark_as_global, int save_as_floats) |
|
604
|
1777 { |
|
620
|
1778 int fail = 0; |
|
|
1779 |
|
1755
|
1780 FOUR_BYTE_INT name_len = name.length (); |
|
604
|
1781 |
|
|
1782 os.write (&name_len, 4); |
|
1755
|
1783 os << name; |
|
|
1784 |
|
|
1785 FOUR_BYTE_INT doc_len = doc.length (); |
|
604
|
1786 |
|
|
1787 os.write (&doc_len, 4); |
|
1755
|
1788 os << doc; |
|
604
|
1789 |
|
|
1790 char tmp; |
|
|
1791 |
|
|
1792 tmp = mark_as_global; |
|
|
1793 os.write (&tmp, 1); |
|
|
1794 |
|
620
|
1795 if (tc.is_real_scalar ()) |
|
604
|
1796 { |
|
|
1797 tmp = 1; |
|
|
1798 os.write (&tmp, 1); |
|
630
|
1799 tmp = (char) LS_DOUBLE; |
|
|
1800 os.write (&tmp, 1); |
|
604
|
1801 double tmp = tc.double_value (); |
|
|
1802 os.write (&tmp, 8); |
|
|
1803 } |
|
620
|
1804 else if (tc.is_real_matrix ()) |
|
604
|
1805 { |
|
|
1806 tmp = 2; |
|
|
1807 os.write (&tmp, 1); |
|
|
1808 Matrix m = tc.matrix_value (); |
|
|
1809 FOUR_BYTE_INT nr = m.rows (); |
|
|
1810 FOUR_BYTE_INT nc = m.columns (); |
|
|
1811 os.write (&nr, 4); |
|
|
1812 os.write (&nc, 4); |
|
|
1813 int len = nr * nc; |
|
|
1814 save_type st = LS_DOUBLE; |
|
630
|
1815 if (save_as_floats) |
|
|
1816 { |
|
1963
|
1817 if (m.too_large_for_float ()) |
|
630
|
1818 { |
|
|
1819 warning ("save: some values too large to save as floats --"); |
|
|
1820 warning ("save: saving as doubles instead"); |
|
|
1821 } |
|
|
1822 else |
|
|
1823 st = LS_FLOAT; |
|
|
1824 } |
|
|
1825 else if (len > 8192) // XXX FIXME XXX -- make this configurable. |
|
604
|
1826 { |
|
|
1827 double max_val, min_val; |
|
1963
|
1828 if (m.all_integers (max_val, min_val)) |
|
604
|
1829 st = get_save_type (max_val, min_val); |
|
|
1830 } |
|
630
|
1831 const double *mtmp = m.data (); |
|
604
|
1832 write_doubles (os, mtmp, st, len); |
|
|
1833 } |
|
|
1834 else if (tc.is_complex_scalar ()) |
|
|
1835 { |
|
|
1836 tmp = 3; |
|
|
1837 os.write (&tmp, 1); |
|
630
|
1838 tmp = (char) LS_DOUBLE; |
|
|
1839 os.write (&tmp, 1); |
|
604
|
1840 Complex tmp = tc.complex_value (); |
|
|
1841 os.write (&tmp, 16); |
|
|
1842 } |
|
|
1843 else if (tc.is_complex_matrix ()) |
|
|
1844 { |
|
|
1845 tmp = 4; |
|
|
1846 os.write (&tmp, 1); |
|
|
1847 ComplexMatrix m = tc.complex_matrix_value (); |
|
|
1848 FOUR_BYTE_INT nr = m.rows (); |
|
|
1849 FOUR_BYTE_INT nc = m.columns (); |
|
|
1850 os.write (&nr, 4); |
|
|
1851 os.write (&nc, 4); |
|
|
1852 int len = nr * nc; |
|
|
1853 save_type st = LS_DOUBLE; |
|
630
|
1854 if (save_as_floats) |
|
|
1855 { |
|
1963
|
1856 if (m.too_large_for_float ()) |
|
630
|
1857 { |
|
|
1858 warning ("save: some values too large to save as floats --"); |
|
|
1859 warning ("save: saving as doubles instead"); |
|
|
1860 } |
|
|
1861 else |
|
|
1862 st = LS_FLOAT; |
|
|
1863 } |
|
|
1864 else if (len > 4096) // XXX FIXME XXX -- make this configurable. |
|
604
|
1865 { |
|
|
1866 double max_val, min_val; |
|
1963
|
1867 if (m.all_integers (max_val, min_val)) |
|
604
|
1868 st = get_save_type (max_val, min_val); |
|
|
1869 } |
|
630
|
1870 const Complex *mtmp = m.data (); |
|
|
1871 write_doubles (os, (const double *) mtmp, st, 2*len); |
|
604
|
1872 } |
|
|
1873 else if (tc.is_string ()) |
|
|
1874 { |
|
1427
|
1875 tmp = 7; |
|
604
|
1876 os.write (&tmp, 1); |
|
1427
|
1877 FOUR_BYTE_INT nr = tc.rows (); |
|
|
1878 os.write (&nr, 4); |
|
2494
|
1879 charMatrix chm = tc.char_matrix_value (); |
|
1427
|
1880 for (int i = 0; i < nr; i++) |
|
|
1881 { |
|
1572
|
1882 FOUR_BYTE_INT len = chm.cols (); |
|
1427
|
1883 os.write (&len, 4); |
|
1728
|
1884 string tstr = chm.row_as_string (i); |
|
|
1885 const char *tmp = tstr.data (); |
|
1427
|
1886 os.write (tmp, len); |
|
|
1887 } |
|
604
|
1888 } |
|
|
1889 else if (tc.is_range ()) |
|
|
1890 { |
|
|
1891 tmp = 6; |
|
|
1892 os.write (&tmp, 1); |
|
630
|
1893 tmp = (char) LS_DOUBLE; |
|
|
1894 os.write (&tmp, 1); |
|
604
|
1895 Range r = tc.range_value (); |
|
|
1896 double bas = r.base (); |
|
|
1897 double lim = r.limit (); |
|
|
1898 double inc = r.inc (); |
|
|
1899 os.write (&bas, 8); |
|
|
1900 os.write (&lim, 8); |
|
|
1901 os.write (&inc, 8); |
|
|
1902 } |
|
|
1903 else |
|
620
|
1904 { |
|
|
1905 gripe_wrong_type_arg ("save", tc); |
|
|
1906 fail = 1; |
|
|
1907 } |
|
604
|
1908 |
|
620
|
1909 return (os && ! fail); |
|
604
|
1910 } |
|
|
1911 |
|
667
|
1912 // Save the data from TC along with the corresponding NAME on stream OS |
|
|
1913 // in the MatLab binary format. |
|
|
1914 |
|
|
1915 static int |
|
2086
|
1916 save_mat_binary_data (ostream& os, const octave_value& tc, |
|
1755
|
1917 const string& name) |
|
667
|
1918 { |
|
|
1919 int fail = 0; |
|
|
1920 |
|
|
1921 FOUR_BYTE_INT mopt = 0; |
|
|
1922 |
|
|
1923 mopt += tc.is_string () ? 1 : 0; |
|
2318
|
1924 |
|
|
1925 oct_mach_info::float_format flt_fmt = |
|
|
1926 oct_mach_info::native_float_format ();; |
|
|
1927 |
|
|
1928 mopt += 1000 * float_format_to_mopt_digit (flt_fmt); |
|
667
|
1929 |
|
|
1930 os.write (&mopt, 4); |
|
|
1931 |
|
|
1932 FOUR_BYTE_INT nr = tc.rows (); |
|
|
1933 os.write (&nr, 4); |
|
|
1934 |
|
|
1935 FOUR_BYTE_INT nc = tc.columns (); |
|
|
1936 os.write (&nc, 4); |
|
|
1937 |
|
|
1938 int len = nr * nc; |
|
|
1939 |
|
|
1940 FOUR_BYTE_INT imag = tc.is_complex_type () ? 1 : 0; |
|
|
1941 os.write (&imag, 4); |
|
|
1942 |
|
2345
|
1943 // LEN includes the terminating character, and the file is also |
|
|
1944 // supposed to include it. |
|
|
1945 |
|
|
1946 FOUR_BYTE_INT name_len = name.length () + 1; |
|
667
|
1947 |
|
|
1948 os.write (&name_len, 4); |
|
2345
|
1949 os << name << '\0'; |
|
667
|
1950 |
|
|
1951 if (tc.is_real_scalar ()) |
|
|
1952 { |
|
|
1953 double tmp = tc.double_value (); |
|
|
1954 os.write (&tmp, 8); |
|
|
1955 } |
|
911
|
1956 else if (tc.is_real_matrix ()) |
|
667
|
1957 { |
|
|
1958 Matrix m = tc.matrix_value (); |
|
|
1959 os.write (m.data (), 8 * len); |
|
|
1960 } |
|
|
1961 else if (tc.is_complex_scalar ()) |
|
|
1962 { |
|
|
1963 Complex tmp = tc.complex_value (); |
|
|
1964 os.write (&tmp, 16); |
|
|
1965 } |
|
|
1966 else if (tc.is_complex_matrix ()) |
|
|
1967 { |
|
|
1968 ComplexMatrix m_cmplx = tc.complex_matrix_value (); |
|
|
1969 Matrix m = ::real(m_cmplx); |
|
|
1970 os.write (m.data (), 8 * len); |
|
|
1971 m = ::imag(m_cmplx); |
|
|
1972 os.write (m.data (), 8 * len); |
|
|
1973 } |
|
|
1974 else if (tc.is_string ()) |
|
|
1975 { |
|
|
1976 begin_unwind_frame ("save_mat_binary_data"); |
|
2181
|
1977 unwind_protect_int (Vimplicit_str_to_num_ok); |
|
|
1978 Vimplicit_str_to_num_ok = 1; |
|
667
|
1979 Matrix m = tc.matrix_value (); |
|
|
1980 os.write (m.data (), 8 * len); |
|
|
1981 run_unwind_frame ("save_mat_binary_data"); |
|
|
1982 } |
|
911
|
1983 else if (tc.is_range ()) |
|
|
1984 { |
|
|
1985 Range r = tc.range_value (); |
|
|
1986 double base = r.base (); |
|
|
1987 double inc = r.inc (); |
|
|
1988 int nel = r.nelem (); |
|
|
1989 for (int i = 0; i < nel; i++) |
|
|
1990 { |
|
|
1991 double x = base + i * inc; |
|
|
1992 os.write (&x, 8); |
|
|
1993 } |
|
|
1994 } |
|
667
|
1995 else |
|
|
1996 { |
|
|
1997 gripe_wrong_type_arg ("save", tc); |
|
|
1998 fail = 1; |
|
|
1999 } |
|
|
2000 |
|
|
2001 return (os && ! fail); |
|
|
2002 } |
|
|
2003 |
|
620
|
2004 static void |
|
|
2005 ascii_save_type (ostream& os, char *type, int mark_as_global) |
|
|
2006 { |
|
|
2007 if (mark_as_global) |
|
|
2008 os << "# type: global "; |
|
|
2009 else |
|
|
2010 os << "# type: "; |
|
|
2011 |
|
|
2012 os << type << "\n"; |
|
|
2013 } |
|
|
2014 |
|
872
|
2015 static Matrix |
|
|
2016 strip_infnan (const Matrix& m) |
|
|
2017 { |
|
|
2018 int nr = m.rows (); |
|
|
2019 int nc = m.columns (); |
|
|
2020 |
|
|
2021 Matrix retval (nr, nc); |
|
|
2022 |
|
|
2023 int k = 0; |
|
|
2024 for (int i = 0; i < nr; i++) |
|
|
2025 { |
|
|
2026 for (int j = 0; j < nc; j++) |
|
|
2027 { |
|
2305
|
2028 double d = m (i, j); |
|
872
|
2029 if (xisnan (d)) |
|
|
2030 goto next_row; |
|
|
2031 else |
|
2305
|
2032 retval (k, j) = xisinf (d) ? (d > 0 ? OCT_RBV : -OCT_RBV) : d; |
|
872
|
2033 } |
|
|
2034 k++; |
|
|
2035 |
|
|
2036 next_row: |
|
|
2037 continue; |
|
|
2038 } |
|
|
2039 |
|
|
2040 if (k > 0) |
|
|
2041 retval.resize (k, nc); |
|
|
2042 |
|
|
2043 return retval; |
|
|
2044 } |
|
|
2045 |
|
|
2046 static ComplexMatrix |
|
|
2047 strip_infnan (const ComplexMatrix& m) |
|
|
2048 { |
|
|
2049 int nr = m.rows (); |
|
|
2050 int nc = m.columns (); |
|
|
2051 |
|
|
2052 ComplexMatrix retval (nr, nc); |
|
|
2053 |
|
|
2054 int k = 0; |
|
|
2055 for (int i = 0; i < nr; i++) |
|
|
2056 { |
|
|
2057 for (int j = 0; j < nc; j++) |
|
|
2058 { |
|
2305
|
2059 Complex c = m (i, j); |
|
872
|
2060 if (xisnan (c)) |
|
|
2061 goto next_row; |
|
|
2062 else |
|
|
2063 { |
|
|
2064 double re = real (c); |
|
|
2065 double im = imag (c); |
|
|
2066 |
|
|
2067 re = xisinf (re) ? (re > 0 ? OCT_RBV : -OCT_RBV) : re; |
|
|
2068 im = xisinf (im) ? (im > 0 ? OCT_RBV : -OCT_RBV) : im; |
|
|
2069 |
|
2305
|
2070 retval (k, j) = Complex (re, im); |
|
872
|
2071 } |
|
|
2072 } |
|
|
2073 k++; |
|
|
2074 |
|
|
2075 next_row: |
|
|
2076 continue; |
|
|
2077 } |
|
|
2078 |
|
|
2079 if (k > 0) |
|
|
2080 retval.resize (k, nc); |
|
|
2081 |
|
|
2082 return retval; |
|
|
2083 } |
|
|
2084 |
|
620
|
2085 // Save the data from TC along with the corresponding NAME, and global |
|
604
|
2086 // flag MARK_AS_GLOBAL on stream OS in the plain text format described |
|
1755
|
2087 // above for load_ascii_data. If NAME is empty, the name: line is not |
|
604
|
2088 // generated. PRECISION specifies the number of decimal digits to print. |
|
872
|
2089 // If STRIP_NAN_AND_INF is nonzero, rows containing NaNs are deleted, |
|
|
2090 // and Infinite values are converted to +/-OCT_RBV (A Real Big Value, |
|
|
2091 // but not so big that gnuplot can't handle it when trying to compute |
|
|
2092 // axis ranges, etc.). |
|
|
2093 // |
|
|
2094 // Assumes ranges and strings cannot contain Inf or NaN values. |
|
|
2095 // |
|
|
2096 // Returns 1 for success and 0 for failure. |
|
604
|
2097 |
|
|
2098 // XXX FIXME XXX -- should probably write the help string here too. |
|
|
2099 |
|
|
2100 int |
|
2086
|
2101 save_ascii_data (ostream& os, const octave_value& tc, |
|
1755
|
2102 const string& name, int strip_nan_and_inf, |
|
872
|
2103 int mark_as_global, int precision) |
|
604
|
2104 { |
|
872
|
2105 int success = 1; |
|
620
|
2106 |
|
604
|
2107 if (! precision) |
|
2194
|
2108 precision = Vsave_precision; |
|
604
|
2109 |
|
1755
|
2110 if (! name.empty ()) |
|
604
|
2111 os << "# name: " << name << "\n"; |
|
|
2112 |
|
|
2113 long old_precision = os.precision (); |
|
|
2114 os.precision (precision); |
|
|
2115 |
|
620
|
2116 if (tc.is_real_scalar ()) |
|
|
2117 { |
|
|
2118 ascii_save_type (os, "scalar", mark_as_global); |
|
872
|
2119 |
|
|
2120 double d = tc.double_value (); |
|
|
2121 if (strip_nan_and_inf) |
|
|
2122 { |
|
|
2123 if (xisnan (d)) |
|
|
2124 { |
|
|
2125 error ("only value to plot is NaN"); |
|
|
2126 success = 0; |
|
|
2127 } |
|
|
2128 else |
|
|
2129 { |
|
|
2130 d = xisinf (d) ? (d > 0 ? OCT_RBV : -OCT_RBV) : d; |
|
|
2131 os << d << "\n"; |
|
|
2132 } |
|
|
2133 } |
|
|
2134 else |
|
|
2135 os << d << "\n"; |
|
620
|
2136 } |
|
|
2137 else if (tc.is_real_matrix ()) |
|
|
2138 { |
|
|
2139 ascii_save_type (os, "matrix", mark_as_global); |
|
|
2140 os << "# rows: " << tc.rows () << "\n" |
|
872
|
2141 << "# columns: " << tc.columns () << "\n"; |
|
|
2142 |
|
|
2143 Matrix tmp = tc.matrix_value (); |
|
|
2144 if (strip_nan_and_inf) |
|
|
2145 tmp = strip_infnan (tmp); |
|
|
2146 |
|
|
2147 os << tmp; |
|
620
|
2148 } |
|
|
2149 else if (tc.is_complex_scalar ()) |
|
|
2150 { |
|
|
2151 ascii_save_type (os, "complex scalar", mark_as_global); |
|
872
|
2152 |
|
|
2153 Complex c = tc.complex_value (); |
|
|
2154 if (strip_nan_and_inf) |
|
|
2155 { |
|
|
2156 if (xisnan (c)) |
|
|
2157 { |
|
|
2158 error ("only value to plot is NaN"); |
|
|
2159 success = 0; |
|
|
2160 } |
|
|
2161 else |
|
|
2162 { |
|
|
2163 double re = real (c); |
|
|
2164 double im = imag (c); |
|
|
2165 |
|
|
2166 re = xisinf (re) ? (re > 0 ? OCT_RBV : -OCT_RBV) : re; |
|
|
2167 im = xisinf (im) ? (im > 0 ? OCT_RBV : -OCT_RBV) : im; |
|
|
2168 |
|
|
2169 c = Complex (re, im); |
|
|
2170 |
|
|
2171 os << c << "\n"; |
|
|
2172 } |
|
|
2173 } |
|
|
2174 else |
|
|
2175 os << c << "\n"; |
|
620
|
2176 } |
|
|
2177 else if (tc.is_complex_matrix ()) |
|
604
|
2178 { |
|
620
|
2179 ascii_save_type (os, "complex matrix", mark_as_global); |
|
|
2180 os << "# rows: " << tc.rows () << "\n" |
|
875
|
2181 << "# columns: " << tc.columns () << "\n"; |
|
|
2182 |
|
|
2183 ComplexMatrix tmp = tc.complex_matrix_value (); |
|
872
|
2184 if (strip_nan_and_inf) |
|
|
2185 tmp = strip_infnan (tmp); |
|
|
2186 |
|
|
2187 os << tmp; |
|
620
|
2188 } |
|
|
2189 else if (tc.is_string ()) |
|
|
2190 { |
|
1427
|
2191 ascii_save_type (os, "string array", mark_as_global); |
|
2494
|
2192 charMatrix chm = tc.char_matrix_value (); |
|
1572
|
2193 int elements = chm.rows (); |
|
1427
|
2194 os << "# elements: " << elements << "\n"; |
|
|
2195 for (int i = 0; i < elements; i++) |
|
|
2196 { |
|
1572
|
2197 int len = chm.cols (); |
|
1427
|
2198 os << "# length: " << len << "\n"; |
|
1728
|
2199 string tstr = chm.row_as_string (i); |
|
1742
|
2200 const char *tmp = tstr.data (); |
|
1572
|
2201 os.write (tmp, len); |
|
1427
|
2202 os << "\n"; |
|
|
2203 } |
|
620
|
2204 } |
|
872
|
2205 else if (tc.is_range ()) |
|
620
|
2206 { |
|
|
2207 ascii_save_type (os, "range", mark_as_global); |
|
|
2208 Range tmp = tc.range_value (); |
|
|
2209 os << "# base, limit, increment\n" |
|
|
2210 << tmp.base () << " " |
|
|
2211 << tmp.limit () << " " |
|
|
2212 << tmp.inc () << "\n"; |
|
|
2213 } |
|
|
2214 else |
|
|
2215 { |
|
|
2216 gripe_wrong_type_arg ("save", tc); |
|
872
|
2217 success = 0; |
|
604
|
2218 } |
|
|
2219 |
|
|
2220 os.precision (old_precision); |
|
|
2221 |
|
872
|
2222 return (os && success); |
|
604
|
2223 } |
|
|
2224 |
|
|
2225 // Save the info from sr on stream os in the format specified by fmt. |
|
|
2226 |
|
|
2227 static void |
|
630
|
2228 do_save (ostream& os, symbol_record *sr, load_save_format fmt, |
|
|
2229 int save_as_floats) |
|
604
|
2230 { |
|
|
2231 if (! sr->is_variable ()) |
|
|
2232 { |
|
|
2233 error ("save: can only save variables, not functions"); |
|
|
2234 return; |
|
|
2235 } |
|
|
2236 |
|
1755
|
2237 string name = sr->name (); |
|
|
2238 string help = sr->help (); |
|
604
|
2239 int global = sr->is_linked_to_global (); |
|
2371
|
2240 tree_fvc *tmp = sr->def (); |
|
|
2241 octave_value tc = tmp->eval (0); |
|
604
|
2242 |
|
1755
|
2243 if (tc.is_undefined ()) |
|
604
|
2244 return; |
|
|
2245 |
|
|
2246 switch (fmt) |
|
|
2247 { |
|
|
2248 case LS_ASCII: |
|
872
|
2249 save_ascii_data (os, tc, name, 0, global); |
|
604
|
2250 break; |
|
|
2251 |
|
|
2252 case LS_BINARY: |
|
630
|
2253 save_binary_data (os, tc, name, help, global, save_as_floats); |
|
604
|
2254 break; |
|
|
2255 |
|
667
|
2256 case LS_MAT_BINARY: |
|
|
2257 save_mat_binary_data (os, tc, name); |
|
|
2258 break; |
|
|
2259 |
|
604
|
2260 default: |
|
775
|
2261 gripe_unrecognized_data_fmt ("save"); |
|
604
|
2262 break; |
|
|
2263 } |
|
|
2264 } |
|
|
2265 |
|
|
2266 // Save variables with names matching PATTERN on stream OS in the |
|
|
2267 // format specified by FMT. If SAVE_BUILTINS is nonzero, also save |
|
|
2268 // builtin variables with names that match PATTERN. |
|
|
2269 |
|
|
2270 static int |
|
1755
|
2271 save_vars (ostream& os, const string& pattern, int save_builtins, |
|
630
|
2272 load_save_format fmt, int save_as_floats) |
|
604
|
2273 { |
|
|
2274 int count; |
|
|
2275 |
|
|
2276 symbol_record **vars = curr_sym_tab->glob |
|
|
2277 (count, pattern, symbol_def::USER_VARIABLE, SYMTAB_ALL_SCOPES); |
|
|
2278 |
|
|
2279 int saved = count; |
|
|
2280 |
|
|
2281 int i; |
|
|
2282 |
|
|
2283 for (i = 0; i < count; i++) |
|
620
|
2284 { |
|
630
|
2285 do_save (os, vars[i], fmt, save_as_floats); |
|
620
|
2286 |
|
|
2287 if (error_state) |
|
|
2288 break; |
|
|
2289 } |
|
604
|
2290 |
|
|
2291 delete [] vars; |
|
|
2292 |
|
620
|
2293 if (! error_state && save_builtins) |
|
604
|
2294 { |
|
|
2295 symbol_record **vars = global_sym_tab->glob |
|
|
2296 (count, pattern, symbol_def::BUILTIN_VARIABLE, SYMTAB_ALL_SCOPES); |
|
|
2297 |
|
|
2298 saved += count; |
|
|
2299 |
|
|
2300 for (i = 0; i < count; i++) |
|
620
|
2301 { |
|
630
|
2302 do_save (os, vars[i], fmt, save_as_floats); |
|
620
|
2303 |
|
|
2304 if (error_state) |
|
|
2305 break; |
|
|
2306 } |
|
604
|
2307 |
|
|
2308 delete [] vars; |
|
|
2309 } |
|
|
2310 |
|
|
2311 return saved; |
|
|
2312 } |
|
|
2313 |
|
|
2314 static load_save_format |
|
|
2315 get_default_save_format (void) |
|
|
2316 { |
|
|
2317 load_save_format retval = LS_ASCII; |
|
|
2318 |
|
2194
|
2319 string fmt = Vdefault_save_format; |
|
1755
|
2320 |
|
|
2321 if (fmt == "binary") |
|
604
|
2322 retval = LS_BINARY; |
|
1755
|
2323 else if (fmt == "mat-binary" || fmt =="mat_binary") |
|
911
|
2324 retval = LS_MAT_BINARY; |
|
604
|
2325 |
|
|
2326 return retval; |
|
|
2327 } |
|
|
2328 |
|
863
|
2329 static void |
|
2095
|
2330 write_binary_header (ostream& os, load_save_format format) |
|
863
|
2331 { |
|
|
2332 if (format == LS_BINARY) |
|
|
2333 { |
|
2318
|
2334 os << (oct_mach_info::words_big_endian () |
|
|
2335 ? "Octave-1-B" : "Octave-1-L"); |
|
863
|
2336 |
|
2318
|
2337 oct_mach_info::float_format flt_fmt = |
|
|
2338 oct_mach_info::native_float_format (); |
|
|
2339 |
|
|
2340 char tmp = (char) float_format_to_mopt_digit (flt_fmt); |
|
2095
|
2341 |
|
|
2342 os.write (&tmp, 1); |
|
863
|
2343 } |
|
|
2344 } |
|
|
2345 |
|
|
2346 static void |
|
1755
|
2347 save_vars (const string_vector& argv, int argv_idx, int argc, |
|
|
2348 ostream& os, int save_builtins, load_save_format fmt, |
|
|
2349 int save_as_floats) |
|
863
|
2350 { |
|
|
2351 write_binary_header (os, fmt); |
|
|
2352 |
|
1755
|
2353 if (argv_idx == argc) |
|
863
|
2354 { |
|
|
2355 save_vars (os, "*", save_builtins, fmt, save_as_floats); |
|
|
2356 } |
|
|
2357 else |
|
|
2358 { |
|
1755
|
2359 for (int i = argv_idx; i < argc; i++) |
|
863
|
2360 { |
|
1755
|
2361 if (! save_vars (os, argv[i], save_builtins, fmt, save_as_floats)) |
|
863
|
2362 { |
|
1755
|
2363 warning ("save: no such variable `%s'", argv[i].c_str ()); |
|
863
|
2364 } |
|
|
2365 } |
|
|
2366 } |
|
|
2367 } |
|
|
2368 |
|
1380
|
2369 void |
|
|
2370 save_user_variables (void) |
|
|
2371 { |
|
|
2372 // XXX FIXME XXX -- should choose better file name? |
|
|
2373 |
|
|
2374 const char *fname = "octave-core"; |
|
|
2375 |
|
|
2376 message (0, "attempting to save variables to `%s'...", fname); |
|
|
2377 |
|
|
2378 load_save_format format = get_default_save_format (); |
|
|
2379 |
|
|
2380 unsigned mode = ios::out|ios::trunc; |
|
|
2381 if (format == LS_BINARY || format == LS_MAT_BINARY) |
|
|
2382 mode |= ios::bin; |
|
|
2383 |
|
|
2384 ofstream file (fname, mode); |
|
|
2385 |
|
|
2386 if (file) |
|
|
2387 { |
|
1755
|
2388 save_vars (string_vector (), 0, 0, file, 0, format, 0); |
|
1380
|
2389 message (0, "save to `%s' complete", fname); |
|
|
2390 } |
|
|
2391 else |
|
|
2392 warning ("unable to open `%s' for writing...", fname); |
|
|
2393 } |
|
|
2394 |
|
1957
|
2395 DEFUN_TEXT (save, args, , |
|
910
|
2396 "save [-ascii] [-binary] [-float-binary] [-mat-binary] \n\ |
|
667
|
2397 [-save-builtins] file [pattern ...]\n\ |
|
604
|
2398 \n\ |
|
|
2399 save variables in a file") |
|
|
2400 { |
|
2086
|
2401 octave_value_list retval; |
|
604
|
2402 |
|
1755
|
2403 int argc = args.length () + 1; |
|
|
2404 |
|
1968
|
2405 string_vector argv = args.make_argv ("save"); |
|
1755
|
2406 |
|
|
2407 if (error_state) |
|
|
2408 return retval; |
|
604
|
2409 |
|
1358
|
2410 // Here is where we would get the default save format if it were |
|
|
2411 // stored in a user preference variable. |
|
604
|
2412 |
|
|
2413 int save_builtins = 0; |
|
|
2414 |
|
630
|
2415 int save_as_floats = 0; |
|
|
2416 |
|
604
|
2417 load_save_format format = get_default_save_format (); |
|
|
2418 |
|
1755
|
2419 int i; |
|
|
2420 for (i = 1; i < argc; i++) |
|
604
|
2421 { |
|
1755
|
2422 if (argv[i] == "-ascii" || argv[i] == "-a") |
|
604
|
2423 { |
|
|
2424 format = LS_ASCII; |
|
|
2425 } |
|
1755
|
2426 else if (argv[i] == "-binary" || argv[i] == "-b") |
|
604
|
2427 { |
|
|
2428 format = LS_BINARY; |
|
|
2429 } |
|
1755
|
2430 else if (argv[i] == "-mat-binary" || argv[i] == "-m") |
|
667
|
2431 { |
|
|
2432 format = LS_MAT_BINARY; |
|
|
2433 } |
|
1755
|
2434 else if (argv[i] == "-float-binary" || argv[i] == "-f") |
|
630
|
2435 { |
|
|
2436 format = LS_BINARY; |
|
|
2437 save_as_floats = 1; |
|
|
2438 } |
|
1755
|
2439 else if (argv[i] == "-save-builtins") |
|
604
|
2440 { |
|
|
2441 save_builtins = 1; |
|
|
2442 } |
|
|
2443 else |
|
|
2444 break; |
|
|
2445 } |
|
|
2446 |
|
2057
|
2447 if (i == argc) |
|
604
|
2448 { |
|
|
2449 print_usage ("save"); |
|
|
2450 return retval; |
|
|
2451 } |
|
|
2452 |
|
630
|
2453 if (save_as_floats && format == LS_ASCII) |
|
|
2454 { |
|
|
2455 error ("save: cannot specify both -ascii and -float-binary"); |
|
|
2456 return retval; |
|
|
2457 } |
|
|
2458 |
|
1755
|
2459 if (argv[i] == "-") |
|
604
|
2460 { |
|
1755
|
2461 i++; |
|
863
|
2462 |
|
1358
|
2463 // XXX FIXME XXX -- should things intended for the screen end up |
|
2086
|
2464 // in a octave_value (string)? |
|
863
|
2465 |
|
2095
|
2466 save_vars (argv, i, argc, octave_stdout, save_builtins, format, |
|
863
|
2467 save_as_floats); |
|
604
|
2468 } |
|
1755
|
2469 |
|
|
2470 // Guard against things like `save a*', which are probably mistakes... |
|
|
2471 |
|
|
2472 else if (i == argc - 1 && glob_pattern_p (argv[i])) |
|
|
2473 { |
|
|
2474 print_usage ("save"); |
|
604
|
2475 return retval; |
|
|
2476 } |
|
|
2477 else |
|
|
2478 { |
|
1755
|
2479 string fname = oct_tilde_expand (argv[i]); |
|
|
2480 |
|
|
2481 i++; |
|
604
|
2482 |
|
911
|
2483 unsigned mode = ios::out|ios::trunc; |
|
604
|
2484 if (format == LS_BINARY || format == LS_MAT_BINARY) |
|
|
2485 mode |= ios::bin; |
|
|
2486 |
|
1750
|
2487 ofstream file (fname.c_str (), mode); |
|
863
|
2488 |
|
|
2489 if (file) |
|
|
2490 { |
|
1755
|
2491 save_vars (argv, i, argc, file, save_builtins, format, |
|
863
|
2492 save_as_floats); |
|
|
2493 } |
|
|
2494 else |
|
604
|
2495 { |
|
1755
|
2496 error ("save: couldn't open output file `%s'", fname.c_str ()); |
|
604
|
2497 return retval; |
|
|
2498 } |
|
|
2499 } |
|
|
2500 |
|
|
2501 return retval; |
|
|
2502 } |
|
|
2503 |
|
|
2504 // Maybe this should be a static function in tree-plot.cc? |
|
|
2505 |
|
620
|
2506 // If TC is matrix, save it on stream OS in a format useful for |
|
604
|
2507 // making a 3-dimensional plot with gnuplot. If PARAMETRIC is |
|
|
2508 // nonzero, assume a parametric 3-dimensional plot will be generated. |
|
|
2509 |
|
|
2510 int |
|
2086
|
2511 save_three_d (ostream& os, const octave_value& tc, int parametric) |
|
604
|
2512 { |
|
620
|
2513 int fail = 0; |
|
604
|
2514 |
|
620
|
2515 int nr = tc.rows (); |
|
|
2516 int nc = tc.columns (); |
|
|
2517 |
|
|
2518 if (tc.is_real_matrix ()) |
|
604
|
2519 { |
|
|
2520 os << "# 3D data...\n" |
|
|
2521 << "# type: matrix\n" |
|
|
2522 << "# total rows: " << nr << "\n" |
|
|
2523 << "# total columns: " << nc << "\n"; |
|
|
2524 |
|
|
2525 if (parametric) |
|
|
2526 { |
|
|
2527 int extras = nc % 3; |
|
|
2528 if (extras) |
|
|
2529 warning ("ignoring last %d columns", extras); |
|
|
2530 |
|
620
|
2531 Matrix tmp = tc.matrix_value (); |
|
872
|
2532 tmp = strip_infnan (tmp); |
|
|
2533 nr = tmp.rows (); |
|
|
2534 |
|
604
|
2535 for (int i = 0; i < nc-extras; i += 3) |
|
|
2536 { |
|
|
2537 os << tmp.extract (0, i, nr-1, i+2); |
|
|
2538 if (i+3 < nc-extras) |
|
|
2539 os << "\n"; |
|
|
2540 } |
|
|
2541 } |
|
|
2542 else |
|
|
2543 { |
|
620
|
2544 Matrix tmp = tc.matrix_value (); |
|
872
|
2545 tmp = strip_infnan (tmp); |
|
|
2546 nr = tmp.rows (); |
|
|
2547 |
|
604
|
2548 for (int i = 0; i < nc; i++) |
|
|
2549 { |
|
|
2550 os << tmp.extract (0, i, nr-1, i); |
|
|
2551 if (i+1 < nc) |
|
|
2552 os << "\n"; |
|
|
2553 } |
|
|
2554 } |
|
620
|
2555 } |
|
|
2556 else |
|
|
2557 { |
|
604
|
2558 ::error ("for now, I can only save real matrices in 3D format"); |
|
620
|
2559 fail = 1; |
|
604
|
2560 } |
|
620
|
2561 |
|
|
2562 return (os && ! fail); |
|
604
|
2563 } |
|
|
2564 |
|
2194
|
2565 static int |
|
|
2566 default_save_format (void) |
|
|
2567 { |
|
|
2568 int status = 0; |
|
|
2569 |
|
|
2570 string s = builtin_string_variable ("default_save_format"); |
|
|
2571 |
|
|
2572 if (s.empty ()) |
|
|
2573 { |
|
|
2574 gripe_invalid_value_specified ("default_save_format"); |
|
|
2575 status = -1; |
|
|
2576 } |
|
|
2577 else |
|
|
2578 Vdefault_save_format = s; |
|
|
2579 |
|
|
2580 return status; |
|
|
2581 } |
|
|
2582 |
|
|
2583 static int |
|
|
2584 save_precision (void) |
|
|
2585 { |
|
|
2586 double val; |
|
|
2587 if (builtin_real_scalar_variable ("save_precision", val) |
|
|
2588 && ! xisnan (val)) |
|
|
2589 { |
|
|
2590 int ival = NINT (val); |
|
|
2591 if (ival >= 0 && (double) ival == val) |
|
|
2592 { |
|
|
2593 Vsave_precision = ival; |
|
|
2594 return 0; |
|
|
2595 } |
|
|
2596 } |
|
|
2597 gripe_invalid_value_specified ("save_precision"); |
|
|
2598 return -1; |
|
|
2599 } |
|
|
2600 |
|
|
2601 void |
|
|
2602 symbols_of_load_save (void) |
|
|
2603 { |
|
|
2604 DEFVAR (default_save_format, "ascii", 0, default_save_format, |
|
|
2605 "default format for files created with save, may be one of\n\ |
|
|
2606 \"binary\", \"text\", or \"mat-binary\""); |
|
|
2607 |
|
|
2608 DEFVAR (save_precision, 15.0, 0, save_precision, |
|
|
2609 "number of significant figures kept by the ASCII save command"); |
|
|
2610 } |
|
|
2611 |
|
604
|
2612 /* |
|
|
2613 ;;; Local Variables: *** |
|
|
2614 ;;; mode: C++ *** |
|
|
2615 ;;; End: *** |
|
|
2616 */ |
