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1
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1 // utils.cc -*- C++ -*- |
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2 /* |
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3 |
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1009
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4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton |
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1
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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1315
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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1
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21 |
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22 */ |
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23 |
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240
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24 #ifdef HAVE_CONFIG_H |
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1192
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25 #include <config.h> |
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1
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26 #endif |
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27 |
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1343
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28 #include <climits> |
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1345
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29 #include <csetjmp> |
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1346
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30 #include <cstring> |
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1343
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31 |
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1349
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32 #include <fstream.h> |
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33 #include <iostream.h> |
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34 #include <strstream.h> |
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35 |
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1350
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36 #ifdef HAVE_UNISTD_H |
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1
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37 #include <sys/types.h> |
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38 #include <unistd.h> |
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39 #endif |
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367
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40 |
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526
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41 #include <Complex.h> |
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287
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42 |
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138
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43 #if defined (HAVE_TERMIOS_H) |
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44 #include <termios.h> |
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45 #elif defined (HAVE_TERMIO_H) |
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1
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46 #include <termio.h> |
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138
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47 #elif defined (HAVE_SGTTY_H) |
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1
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48 #include <sgtty.h> |
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49 #else |
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50 LOSE! LOSE! |
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51 #endif |
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52 |
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581
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53 #include <readline/tilde.h> |
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1465
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54 |
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55 #ifndef HAVE_STRNCASECMP |
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56 extern "C" int strncasecmp (const char*, const char*, size_t); |
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57 #endif |
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1
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58 |
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59 #include "SLStack.h" |
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60 |
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1352
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61 #include "defun.h" |
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62 #include "dirfns.h" |
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63 #include "error.h" |
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64 #include "gripes.h" |
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65 #include "help.h" |
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66 #include "input.h" |
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67 #include "mappers.h" |
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68 #include "oct-obj.h" |
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69 #include "octave-hist.h" |
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70 #include "octave.h" |
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71 #include "pager.h" |
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1155
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72 #include "pathsearch.h" |
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1352
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73 #include "sysdir.h" |
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1
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74 #include "tree-const.h" |
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75 #include "unwind-prot.h" |
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1352
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76 #include "user-prefs.h" |
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77 #include "utils.h" |
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78 #include "variables.h" |
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1
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79 |
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80 // Top level context (?) |
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81 extern jmp_buf toplevel; |
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82 |
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581
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83 // Save a string. |
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84 |
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1
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85 char * |
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86 strsave (const char *s) |
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87 { |
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526
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88 if (! s) |
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89 return 0; |
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1
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90 |
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91 int len = strlen (s); |
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92 char *tmp = new char [len+1]; |
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93 tmp = strcpy (tmp, s); |
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94 return tmp; |
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95 } |
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96 |
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581
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97 // Concatenate two strings. |
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98 |
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1
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99 char * |
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100 strconcat (const char *s, const char *t) |
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101 { |
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102 int len = strlen (s) + strlen (t); |
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103 char *tmp = new char [len+1]; |
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104 strcpy (tmp, s); |
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1266
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105 strcat (tmp, t); |
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106 return tmp; |
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1
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107 } |
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108 |
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581
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109 // Throw away input until a given character is read. |
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110 |
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1
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111 void |
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112 discard_until (istream& stream, char character) |
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113 { |
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114 int c; |
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115 for (;;) |
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116 { |
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117 stream >> c; |
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118 if (c == EOF || c == character) |
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119 break; |
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120 } |
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121 if (c != EOF) |
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122 stream.putback ((char) c); |
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123 } |
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124 |
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607
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125 #if 0 |
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126 |
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127 // XXX UNTESTED XXX |
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128 |
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129 // Read input until a given character is read. Returns characters |
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130 // read in a new string that must be freed by the caller. |
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131 |
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132 char * |
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133 read_until (istream& stream, char character) |
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134 { |
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135 int grow_size = 8; |
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136 int limit = grow_size; |
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137 char *buf = new char [limit]; |
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138 char *bp = buf; |
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139 |
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140 get_more: |
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141 is.getline (bp, limit, character); |
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142 |
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143 if (is.gcount () == 0) |
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144 { |
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145 delete [] buf; |
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146 return 0; |
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147 } |
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148 |
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149 if (is.gcount () == limit && buf[limit-1] != '\0') |
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150 { |
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151 char *tmp = new char [limit + grow_size]; |
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152 strcpy (tmp, buf); |
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153 delete [] buf; |
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154 buf = tmp; |
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155 bp = tmp + limit - 1; |
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156 limit += grow_size; |
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157 grow_size *= 2; |
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158 goto get_more; |
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159 } |
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160 |
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161 return buf; |
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162 } |
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163 #endif |
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164 |
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661
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165 // Get a temporary file name. |
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643
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166 |
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167 char * |
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168 octave_tmp_file_name (void) |
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169 { |
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662
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170 static char *retval = 0; |
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171 |
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172 if (retval) |
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173 free (retval); |
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174 |
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175 retval = tempnam (0, "oct-"); |
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176 |
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661
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177 if (! retval) |
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178 error ("can't open temporary file!"); |
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662
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179 |
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661
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180 return retval; |
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643
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181 } |
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182 |
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801
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183 DEFUN ("octave_tmp_file_name", Foctave_tmp_file_name, |
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184 Soctave_tmp_file_name, 0, 1, |
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185 "octave_tmp_file_name ()") |
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186 { |
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187 tree_constant retval; |
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188 |
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189 if (args.length () == 0) |
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190 retval = octave_tmp_file_name (); |
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191 else |
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192 print_usage ("octave_tmp_file_name"); |
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193 |
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194 return retval; |
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195 } |
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196 |
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1
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197 char ** |
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198 pathstring_to_vector (char *pathstring) |
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199 { |
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526
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200 static char **path = 0; |
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1
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201 |
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526
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202 if (pathstring) |
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1
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203 { |
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204 int nelem = 0; |
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240
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205 char *tmp_path = strsave (pathstring); |
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206 if (*tmp_path != '\0') |
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1
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207 { |
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208 nelem++; |
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240
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209 char *ptr = tmp_path; |
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1
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210 while (*ptr != '\0') |
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211 { |
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1104
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212 if (*ptr == SEPCHAR) |
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1
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213 nelem++; |
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214 ptr++; |
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215 } |
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216 } |
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217 |
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240
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218 char **foo = path; |
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219 while (foo && *foo) |
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244
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220 delete [] *foo++; |
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1
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221 delete [] path; |
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244
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222 |
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1
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223 path = new char * [nelem+1]; |
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526
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224 path[nelem] = 0; |
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1
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225 |
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226 int i = 0; |
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240
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227 char *ptr = tmp_path; |
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1
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228 while (i < nelem) |
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229 { |
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1104
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230 char *end = strchr (ptr, SEPCHAR); |
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526
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231 if (end) |
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1
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232 *end = '\0'; |
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233 char *result = tilde_expand (ptr); |
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234 path[i] = strsave (result); |
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235 free (result); |
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236 ptr = end + 1; |
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237 i++; |
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238 } |
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239 |
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240
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240 delete [] tmp_path; |
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1
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241 } |
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242 |
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243 return path; |
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244 } |
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245 |
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581
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246 // Return to the main command loop in octave.cc. |
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247 |
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189
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248 void |
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1
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249 jump_to_top_level (void) |
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250 { |
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251 run_all_unwind_protects (); |
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252 |
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253 longjmp (toplevel, 1); |
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254 } |
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255 |
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256 int |
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526
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257 almost_match (const char *std, const char *s, int min_match_len, |
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258 int case_sens) |
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1
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259 { |
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260 int stdlen = strlen (std); |
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261 int slen = strlen (s); |
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262 |
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263 return (slen <= stdlen |
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264 && slen >= min_match_len |
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287
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265 && (case_sens |
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266 ? (strncmp (std, s, slen) == 0) |
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267 : (strncasecmp (std, s, slen) == 0))); |
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268 } |
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269 |
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581
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270 // Ugh. |
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271 |
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287
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272 int |
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273 keyword_almost_match (const char **std, int *min_len, const char *s, |
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274 int min_toks_to_match, int max_toks) |
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275 { |
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276 int status = 0; |
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277 int tok_count = 0; |
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278 int toks_matched = 0; |
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279 |
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526
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280 if (! s || *s == '\0' || max_toks < 1) |
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287
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281 return status; |
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282 |
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283 char *kw = strsave (s); |
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284 |
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285 char *t = kw; |
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286 while (*t != '\0') |
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287 { |
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288 if (*t == '\t') |
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289 *t = ' '; |
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290 t++; |
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291 } |
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292 |
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293 char *beg = kw; |
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294 while (*beg == ' ') |
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295 beg++; |
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296 |
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297 if (*beg == '\0') |
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298 return status; |
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299 |
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300 |
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301 char **to_match = new char * [max_toks + 1]; |
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526
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302 const char **s1 = std; |
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287
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303 char **s2 = to_match; |
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304 |
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526
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305 if (! s1 || ! s2) |
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287
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306 goto done; |
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307 |
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308 s2[tok_count] = beg; |
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309 char *end; |
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526
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310 while ((end = strchr (beg, ' ')) != 0) |
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287
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311 { |
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312 *end = '\0'; |
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313 beg = end + 1; |
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314 |
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315 while (*beg == ' ') |
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316 beg++; |
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317 |
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318 if (*beg == '\0') |
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319 break; |
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320 |
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321 tok_count++; |
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322 if (tok_count >= max_toks) |
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323 goto done; |
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324 |
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325 s2[tok_count] = beg; |
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326 } |
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526
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327 s2[tok_count+1] = 0; |
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287
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328 |
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329 s2 = to_match; |
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330 |
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331 for (;;) |
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332 { |
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333 if (! almost_match (*s1, *s2, min_len[toks_matched], 0)) |
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334 goto done; |
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335 |
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336 toks_matched++; |
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337 |
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338 s1++; |
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339 s2++; |
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340 |
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341 if (! *s2) |
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342 { |
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343 status = (toks_matched >= min_toks_to_match); |
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344 goto done; |
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345 } |
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346 |
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347 if (! *s1) |
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348 goto done; |
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349 } |
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350 |
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351 done: |
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352 |
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353 delete [] kw; |
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354 delete [] to_match; |
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355 |
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356 return status; |
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1
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357 } |
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358 |
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359 char ** |
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338
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360 get_fcn_file_names (int& num, const char *dir, int no_suffix) |
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1
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361 { |
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362 static int num_max = 256; |
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363 char **retval = new char * [num_max]; |
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364 int i = 0; |
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365 |
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366 DIR *dirp = opendir (dir); |
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526
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367 if (dirp) |
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1
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368 { |
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369 struct dirent *entry; |
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526
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370 while ((entry = readdir (dirp)) != 0) |
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1
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371 { |
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372 int len = NLENGTH (entry); |
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826
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373 #ifdef WITH_DLD |
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374 if ((len > 2 |
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375 && entry->d_name[len-2] == '.' |
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376 && entry->d_name[len-1] == 'm') |
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377 || (len > 4 |
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378 && entry->d_name[len-4] == '.' |
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379 && entry->d_name[len-3] == 'o' |
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380 && entry->d_name[len-2] == 'c' |
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381 && entry->d_name[len-1] == 't')) |
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382 #else |
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1
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383 if (len > 2 |
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384 && entry->d_name[len-2] == '.' |
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385 && entry->d_name[len-1] == 'm') |
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826
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386 #endif |
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1
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387 { |
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388 retval[i] = strsave (entry->d_name); |
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389 if (no_suffix) |
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826
|
390 { |
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391 if (retval[i][len-1] == 'm') |
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392 retval[i][len-2] = '\0'; |
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393 else |
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394 retval[i][len-4] = '\0'; |
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395 } |
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1
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396 |
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397 i++; |
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398 |
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399 if (i == num_max - 1) |
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400 { |
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1358
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401 // Reallocate the array. Only copy pointers, not |
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402 // the strings they point to, then only delete the |
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403 // original array of pointers, and not the strings |
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404 // they point to. |
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244
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405 |
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1
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406 num_max += 256; |
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407 char **tmp = new char * [num_max]; |
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408 for (int j = 0; j < i; j++) |
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409 tmp[j] = retval[j]; |
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410 |
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244
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411 delete [] retval; |
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412 |
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1
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413 retval = tmp; |
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|
414 } |
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415 } |
|
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416 } |
|
106
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417 closedir (dirp); |
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1
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418 } |
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419 |
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526
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420 retval[i] = 0; |
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1
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421 num = i; |
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422 |
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423 return retval; |
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424 } |
|
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425 |
|
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426 char ** |
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338
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427 get_fcn_file_names (int& num, int no_suffix) |
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1
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428 { |
|
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429 static int num_max = 1024; |
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430 char **retval = new char * [num_max]; |
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431 int i = 0; |
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432 |
|
679
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433 char *path_elt = kpse_path_element (user_pref.loadpath); |
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1
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434 |
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679
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435 while (path_elt) |
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1
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436 { |
|
679
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437 str_llist_type *elt_dirs = kpse_element_dirs (path_elt); |
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438 |
|
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439 str_llist_elt_type *dir; |
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440 for (dir = *elt_dirs; dir; dir = STR_LLIST_NEXT (*dir)) |
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1
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441 { |
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679
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442 char *elt_dir = STR_LLIST (*dir); |
|
1
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443 |
|
679
|
444 if (elt_dir) |
|
1
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445 { |
|
679
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446 int tmp_num; |
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447 char **names = get_fcn_file_names (tmp_num, elt_dir, no_suffix); |
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448 |
|
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449 if (i + tmp_num >= num_max - 1) |
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|
450 { |
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1358
|
451 // Reallocate the array. Only copy pointers, not |
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|
452 // the strings they point to, then only delete the |
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|
453 // original array of pointers, and not the strings |
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454 // they point to. |
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244
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455 |
|
679
|
456 num_max += 1024; |
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457 char **tmp = new char * [num_max]; |
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|
458 for (int j = 0; j < i; j++) |
|
|
459 tmp[j] = retval[j]; |
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1
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460 |
|
679
|
461 delete [] retval; |
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244
|
462 |
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679
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463 retval = tmp; |
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|
464 } |
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1
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465 |
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679
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466 int k = 0; |
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467 while (k < tmp_num) |
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468 retval[i++] = names[k++]; |
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|
469 } |
|
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470 } |
|
1
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471 |
|
679
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472 path_elt = kpse_path_element (0); |
|
1
|
473 } |
|
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474 |
|
526
|
475 retval[i] = 0; |
|
1
|
476 num = i; |
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477 |
|
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478 return retval; |
|
|
479 } |
|
|
480 |
|
1086
|
481 // Convert X to the nearest integer value. Should not pass NaN to |
|
|
482 // this function. |
|
|
483 |
|
1
|
484 int |
|
|
485 NINT (double x) |
|
|
486 { |
|
|
487 if (x > INT_MAX) |
|
|
488 return INT_MAX; |
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|
489 else if (x < INT_MIN) |
|
|
490 return INT_MIN; |
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|
491 else |
|
|
492 return (x > 0) ? ((int) (x + 0.5)) : ((int) (x - 0.5)); |
|
|
493 } |
|
|
494 |
|
|
495 double |
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|
496 D_NINT (double x) |
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|
497 { |
|
|
498 if (xisinf (x) || xisnan (x)) |
|
|
499 return x; |
|
|
500 else |
|
|
501 return floor (x + 0.5); |
|
|
502 } |
|
|
503 |
|
526
|
504 // XXX FIXME XXX -- put these in some file, and make them extern. |
|
|
505 |
|
|
506 static int |
|
|
507 all_strings (const Octave_object& args) |
|
|
508 { |
|
|
509 int n = args.length (); |
|
712
|
510 for (int i = 0; i < n; i++) |
|
610
|
511 if (! args(i).is_string ()) |
|
526
|
512 return 0; |
|
|
513 return 1; |
|
|
514 } |
|
|
515 |
|
|
516 char ** |
|
578
|
517 make_argv (const Octave_object& args, const char *fcn_name) |
|
526
|
518 { |
|
|
519 char **argv = 0; |
|
|
520 if (all_strings (args)) |
|
|
521 { |
|
|
522 int n = args.length (); |
|
|
523 argv = new char * [n + 1]; |
|
578
|
524 argv[0] = strsave (fcn_name); |
|
712
|
525 for (int i = 0; i < n; i++) |
|
|
526 argv[i+1] = strsave (args(i).string_value ()); |
|
526
|
527 } |
|
|
528 else |
|
578
|
529 error ("%s: expecting all arguments to be strings", fcn_name); |
|
526
|
530 |
|
|
531 return argv; |
|
|
532 } |
|
|
533 |
|
719
|
534 // Return non-zero if either NR or NC is zero. Return -1 if this |
|
|
535 // should be considered fatal; return 1 if this is ok. |
|
|
536 |
|
628
|
537 int |
|
|
538 empty_arg (const char *name, int nr, int nc) |
|
|
539 { |
|
|
540 int is_empty = 0; |
|
|
541 |
|
|
542 if (nr == 0 || nc == 0) |
|
|
543 { |
|
|
544 int flag = user_pref.propagate_empty_matrices; |
|
|
545 |
|
|
546 if (flag < 0) |
|
636
|
547 { |
|
|
548 gripe_empty_arg (name, 0); |
|
|
549 is_empty = 1; |
|
|
550 } |
|
673
|
551 else if (flag == 0) |
|
636
|
552 { |
|
|
553 gripe_empty_arg (name, 1); |
|
|
554 is_empty = -1; |
|
|
555 } |
|
719
|
556 else |
|
|
557 is_empty = 1; |
|
628
|
558 } |
|
|
559 |
|
|
560 return is_empty; |
|
|
561 } |
|
|
562 |
|
581
|
563 // Format a list in neat columns. Mostly stolen from GNU ls. This |
|
|
564 // should maybe be in utils.cc. |
|
|
565 |
|
526
|
566 ostrstream& |
|
|
567 list_in_columns (ostrstream& os, char **list) |
|
|
568 { |
|
1358
|
569 // Compute the maximum name length. |
|
526
|
570 |
|
|
571 int max_name_length = 0; |
|
|
572 int total_names = 0; |
|
1321
|
573 char **names = 0; |
|
|
574 for (names = list; *names; names++) |
|
526
|
575 { |
|
|
576 total_names++; |
|
|
577 int name_length = strlen (*names); |
|
|
578 if (name_length > max_name_length) |
|
|
579 max_name_length = name_length; |
|
|
580 } |
|
|
581 |
|
1358
|
582 // Allow at least two spaces between names. |
|
526
|
583 |
|
|
584 max_name_length += 2; |
|
|
585 |
|
1358
|
586 // Calculate the maximum number of columns that will fit. |
|
526
|
587 |
|
|
588 int line_length = terminal_columns (); |
|
|
589 int cols = line_length / max_name_length; |
|
|
590 if (cols == 0) |
|
|
591 cols = 1; |
|
|
592 |
|
1358
|
593 // Calculate the number of rows that will be in each column except |
|
|
594 // possibly for a short column on the right. |
|
526
|
595 |
|
|
596 int rows = total_names / cols + (total_names % cols != 0); |
|
|
597 |
|
1358
|
598 // Recalculate columns based on rows. |
|
526
|
599 |
|
|
600 cols = total_names / rows + (total_names % rows != 0); |
|
|
601 |
|
|
602 names = list; |
|
|
603 int count; |
|
|
604 for (int row = 0; row < rows; row++) |
|
|
605 { |
|
|
606 count = row; |
|
|
607 int pos = 0; |
|
|
608 |
|
1358
|
609 // Print the next row. |
|
526
|
610 |
|
|
611 while (1) |
|
|
612 { |
|
|
613 os << *(names + count); |
|
|
614 int name_length = strlen (*(names + count)); |
|
|
615 |
|
|
616 count += rows; |
|
|
617 if (count >= total_names) |
|
|
618 break; |
|
|
619 |
|
|
620 int spaces_to_pad = max_name_length - name_length; |
|
|
621 for (int i = 0; i < spaces_to_pad; i++) |
|
|
622 os << " "; |
|
|
623 pos += max_name_length; |
|
|
624 } |
|
|
625 os << "\n"; |
|
|
626 } |
|
|
627 |
|
|
628 return os; |
|
|
629 } |
|
|
630 |
|
581
|
631 // See if the given file is in the path. |
|
|
632 |
|
526
|
633 char * |
|
686
|
634 search_path_for_file (const char *path, const char *name) |
|
|
635 { |
|
|
636 char *retval = 0; |
|
|
637 |
|
|
638 char *tmp = kpse_path_search (path, name, kpathsea_true); |
|
|
639 |
|
|
640 if (tmp) |
|
|
641 { |
|
|
642 retval = make_absolute (tmp, the_current_working_directory); |
|
|
643 free (tmp); |
|
|
644 } |
|
|
645 |
|
|
646 return retval; |
|
|
647 } |
|
|
648 |
|
912
|
649 DEFUN ("file_in_path", Ffile_in_path, Sfile_in_path, 3, 1, |
|
686
|
650 "file_in_path (PATH, NAME)") |
|
|
651 { |
|
|
652 Octave_object retval; |
|
|
653 |
|
|
654 DEFINE_ARGV("file_in_path"); |
|
|
655 |
|
|
656 if (argc == 3) |
|
|
657 { |
|
|
658 char *fname = search_path_for_file (argv[1], argv[2]); |
|
|
659 |
|
|
660 if (fname) |
|
|
661 retval = fname; |
|
|
662 else |
|
|
663 retval = Matrix (); |
|
|
664 } |
|
|
665 else |
|
|
666 print_usage ("file_in_path"); |
|
|
667 |
|
|
668 DELETE_ARGV; |
|
|
669 |
|
|
670 return retval; |
|
|
671 } |
|
|
672 |
|
|
673 |
|
|
674 char * |
|
526
|
675 file_in_path (const char *name, const char *suffix) |
|
|
676 { |
|
|
677 char *retval = 0; |
|
|
678 |
|
1266
|
679 char *nm = 0; |
|
686
|
680 |
|
526
|
681 if (suffix) |
|
1266
|
682 nm = strconcat (name, suffix); |
|
|
683 else |
|
|
684 nm = strsave (name); |
|
526
|
685 |
|
|
686 if (! the_current_working_directory) |
|
|
687 get_working_directory ("file_in_path"); |
|
|
688 |
|
686
|
689 retval = search_path_for_file (user_pref.loadpath, nm); |
|
526
|
690 |
|
686
|
691 delete [] nm; |
|
526
|
692 |
|
|
693 return retval; |
|
|
694 } |
|
|
695 |
|
581
|
696 // See if there is an function file in the path. If so, return the |
|
|
697 // full path to the file. |
|
|
698 |
|
526
|
699 char * |
|
|
700 fcn_file_in_path (const char *name) |
|
|
701 { |
|
908
|
702 if (name) |
|
|
703 { |
|
|
704 int len = strlen (name); |
|
|
705 |
|
|
706 if (name [len - 2] == '.' && name [len - 1] == 'm') |
|
|
707 return file_in_path (name, ""); |
|
|
708 else |
|
|
709 return file_in_path (name, ".m"); |
|
|
710 } |
|
|
711 else |
|
|
712 return 0; |
|
526
|
713 } |
|
|
714 |
|
581
|
715 // See if there is an octave file in the path. If so, return the |
|
|
716 // full path to the file. |
|
|
717 |
|
572
|
718 char * |
|
|
719 oct_file_in_path (const char *name) |
|
|
720 { |
|
908
|
721 if (name) |
|
|
722 { |
|
|
723 int len = strlen (name); |
|
|
724 |
|
|
725 if (name [len - 4] == '.' && name [len - 3] == 'o' |
|
|
726 && name [len - 2] == 'c' && name [len - 1] == 't') |
|
|
727 return file_in_path (name, ""); |
|
|
728 else |
|
|
729 return file_in_path (name, ".oct"); |
|
|
730 } |
|
|
731 else |
|
|
732 return 0; |
|
572
|
733 } |
|
|
734 |
|
801
|
735 char * |
|
|
736 undo_string_escape (char c) |
|
|
737 { |
|
|
738 static char retval[2]; |
|
|
739 retval[1] = '\0'; |
|
|
740 |
|
|
741 if (! c) |
|
|
742 return 0; |
|
|
743 |
|
|
744 switch (c) |
|
|
745 { |
|
|
746 case '\a': |
|
|
747 return "\\a"; |
|
|
748 |
|
|
749 case '\b': // backspace |
|
|
750 return "\\b"; |
|
|
751 |
|
|
752 case '\f': // formfeed |
|
|
753 return "\\f"; |
|
|
754 |
|
|
755 case '\n': // newline |
|
|
756 return "\\n"; |
|
|
757 |
|
|
758 case '\r': // carriage return |
|
|
759 return "\\r"; |
|
|
760 |
|
|
761 case '\t': // horizontal tab |
|
|
762 return "\\t"; |
|
|
763 |
|
|
764 case '\v': // vertical tab |
|
|
765 return "\\v"; |
|
|
766 |
|
|
767 case '\\': // backslash |
|
|
768 return "\\\\"; |
|
|
769 |
|
|
770 case '"': // double quote |
|
|
771 return "\\\""; |
|
|
772 |
|
|
773 default: |
|
|
774 retval[0] = c; |
|
|
775 return retval; |
|
|
776 } |
|
|
777 } |
|
|
778 |
|
|
779 char * |
|
1363
|
780 undo_string_escapes (const char *s) |
|
801
|
781 { |
|
|
782 ostrstream buf; |
|
|
783 |
|
|
784 char *t; |
|
1215
|
785 while ((t = undo_string_escape (*s++))) |
|
801
|
786 buf << t; |
|
|
787 buf << ends; |
|
|
788 |
|
|
789 return buf.str (); |
|
|
790 } |
|
|
791 |
|
|
792 DEFUN ("undo_string_escapes", Fundo_string_escapes, |
|
|
793 Sundo_string_escapes, 1, 1, |
|
|
794 "undo_string_escapes (STRING)") |
|
|
795 { |
|
|
796 tree_constant retval; |
|
|
797 |
|
|
798 int nargin = args.length (); |
|
|
799 |
|
|
800 if (nargin == 1 && args(0).is_string ()) |
|
|
801 { |
|
|
802 char *str = undo_string_escapes (args(0).string_value ()); |
|
|
803 retval = str; |
|
|
804 delete [] str; |
|
|
805 } |
|
|
806 else |
|
1023
|
807 print_usage ("undo_string_escapes"); |
|
801
|
808 |
|
|
809 return retval; |
|
|
810 } |
|
|
811 |
|
572
|
812 /* |
|
1
|
813 ;;; Local Variables: *** |
|
|
814 ;;; mode: C++ *** |
|
|
815 ;;; page-delimiter: "^/\\*" *** |
|
|
816 ;;; End: *** |
|
|
817 */ |
