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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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296
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4 Copyright (C) 1992, 1993, 1994 John W. Eaton |
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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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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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24 /* |
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25 |
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400
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26 The 12 functions listed below were adapted from a similar functions |
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27 from GNU Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 |
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28 Free Software Foundation, Inc. |
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29 |
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30 polite_directory_format absolute_pathname |
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31 absolute_program base_pathname |
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32 read_octal sub_append_string |
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33 decode_prompt_string pathname_backup |
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34 make_absolute get_working_directory |
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320
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35 change_to_directory gethostname |
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36 |
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37 */ |
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38 |
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240
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39 #ifdef HAVE_CONFIG_H |
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40 #include "config.h" |
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41 #endif |
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42 |
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43 #include <sys/types.h> |
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44 #ifdef HAVE_UNISTD_H |
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45 #include <unistd.h> |
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46 #endif |
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47 #include <sys/param.h> |
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48 #include <setjmp.h> |
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49 #include <string.h> |
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50 #include <stdlib.h> |
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51 #include <stdio.h> |
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52 #include <time.h> |
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53 #include <math.h> |
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54 #include <limits.h> |
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55 #include <iostream.h> |
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56 #include <strstream.h> |
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57 #include <fstream.h> |
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367
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58 |
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59 // This mess suggested by the autoconf manual. |
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60 // unistd.h defines _POSIX_VERSION on POSIX.1 systems. |
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61 #if defined(DIRENT) || defined(_POSIX_VERSION) |
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62 #include <dirent.h> |
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367
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63 #define NLENGTH(dirent) (strlen((dirent)->d_name)) |
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64 #else /* not (DIRENT or _POSIX_VERSION) */ |
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65 #define dirent direct |
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66 #define NLENGTH(dirent) ((dirent)->d_namlen) |
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67 #ifdef SYSNDIR |
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68 #include <sys/ndir.h> |
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69 #endif /* SYSNDIR */ |
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70 #ifdef SYSDIR |
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71 #include <sys/dir.h> |
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72 #endif /* SYSDIR */ |
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73 #ifdef NDIR |
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74 #include <ndir.h> |
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75 #endif /* NDIR */ |
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76 #endif /* not (DIRENT or _POSIX_VERSION) */ |
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77 |
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287
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78 #ifndef HAVE_STRCASECMP |
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79 extern "C" |
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80 { |
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81 extern int strcasecmp (const char*, const char*); |
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82 } |
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83 #endif |
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84 |
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85 #ifndef HAVE_STRNCASECMP |
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86 extern "C" |
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87 { |
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88 extern int strncasecmp (const char*, const char*, size_t); |
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89 } |
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90 #endif |
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91 |
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138
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92 extern "C" |
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93 { |
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94 #if defined (HAVE_TERMIOS_H) |
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95 #include <termios.h> |
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96 #elif defined (HAVE_TERMIO_H) |
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97 #include <termio.h> |
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138
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98 #elif defined (HAVE_SGTTY_H) |
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99 #include <sgtty.h> |
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100 #else |
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101 LOSE! LOSE! |
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102 #endif |
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103 |
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400
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104 extern int ioctl (); |
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138
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105 char *tilde_expand (char *s); /* From readline's tilde.c */ |
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106 } |
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107 |
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108 #include "SLStack.h" |
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109 |
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110 #include "statdefs.h" |
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111 #include "procstream.h" |
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112 #include "user-prefs.h" |
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113 #include "variables.h" |
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114 #include "error.h" |
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115 #include "utils.h" |
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175
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116 #include "input.h" |
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117 #include "octave.h" |
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118 #include "mappers.h" |
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119 #include "version.h" |
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120 #include "defaults.h" |
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121 #include "tree-const.h" |
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122 #include "unwind-prot.h" |
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123 #include "octave-hist.h" |
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124 |
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138
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125 #ifndef STDIN_FILENO |
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126 #define STDIN_FILENO 1 |
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127 #endif |
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128 |
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129 // Top level context (?) |
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130 extern jmp_buf toplevel; |
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131 |
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478
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132 // The number of lines we\'ve plotted so far. |
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133 extern int plot_line_count; |
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134 |
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135 // Pipe to gnuplot. |
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136 static oprocstream plot_stream; |
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137 |
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138 // Non-zero means follow symbolic links that point to directories just |
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139 // as if they are real directories. |
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140 static int follow_symbolic_links = 1; |
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141 |
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142 #ifndef MAXPATHLEN |
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143 #define MAXPATHLEN 1024 |
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144 #endif |
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145 |
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146 // The size that strings change by. |
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147 #ifndef DEFAULT_ARRAY_SIZE |
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148 #define DEFAULT_ARRAY_SIZE 512 |
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149 #endif |
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150 |
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151 // The growth rate for the prompt string. |
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152 #ifndef PROMPT_GROWTH |
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153 #define PROMPT_GROWTH 50 |
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154 #endif |
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155 |
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156 #ifndef MAX |
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157 #define MAX(a,b) ((a) > (b) ? (a) : (b)) |
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158 #endif |
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159 |
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160 #ifndef MIN |
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161 #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
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162 #endif |
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163 |
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164 // Where to find the site-wide configuration file |
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165 #ifndef OCTAVE_HOME |
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166 #define OCTAVE_HOME "/usr/local" |
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167 #endif |
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168 |
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169 // Temp storage for a path. |
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170 static char tdir[MAXPATHLEN]; |
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171 |
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172 // List of files to delete when we exit or crash. |
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173 static SLStack <char *> tmp_files; |
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174 |
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175 /* |
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176 * Save a string. |
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177 */ |
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178 char * |
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179 strsave (const char *s) |
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180 { |
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181 if (s == (char *) NULL) |
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182 return (char *) NULL; |
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183 |
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184 int len = strlen (s); |
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185 char *tmp = new char [len+1]; |
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186 tmp = strcpy (tmp, s); |
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187 return tmp; |
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188 } |
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189 |
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190 /* |
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191 * Concatenate two strings. |
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192 */ |
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193 char * |
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194 strconcat (const char *s, const char *t) |
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195 { |
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196 int len = strlen (s) + strlen (t); |
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197 char *tmp = new char [len+1]; |
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198 strcpy (tmp, s); |
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199 return strcat (tmp, t); |
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200 } |
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201 |
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202 /* |
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203 * Throw away input until a given character is read. |
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204 */ |
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205 void |
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206 discard_until (istream& stream, char character) |
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207 { |
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208 int c; |
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209 for (;;) |
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210 { |
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211 stream >> c; |
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212 if (c == EOF || c == character) |
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213 break; |
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214 } |
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215 if (c != EOF) |
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216 stream.putback ((char) c); |
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217 } |
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218 |
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219 void |
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220 check_dimensions (int& nr, int& nc, const char *warnfor) |
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221 { |
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222 if (nr < 0 || nc < 0) |
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223 { |
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224 if (user_pref.treat_neg_dim_as_zero) |
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225 nr = nc = 0; |
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226 else |
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143
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227 error ("%s: can't create a matrix with negative dimensions", |
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228 warnfor); |
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229 } |
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230 } |
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231 |
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232 /* |
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233 * Set terminal in raw mode. From less-177. |
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234 * |
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235 * Change terminal to "raw mode", or restore to "normal" mode. |
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236 * "Raw mode" means |
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237 * 1. An outstanding read will complete on receipt of a single keystroke. |
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238 * 2. Input is not echoed. |
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239 * 3. On output, \n is mapped to \r\n. |
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240 * 4. \t is NOT expanded into spaces. |
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241 * 5. Signal-causing characters such as ctrl-C (interrupt), |
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242 * etc. are NOT disabled. |
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243 * It doesn't matter whether an input \n is mapped to \r, or vice versa. |
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244 */ |
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245 void |
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246 raw_mode (int on) |
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247 { |
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248 static int curr_on = 0; |
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249 |
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250 int tty_fd = STDIN_FILENO; |
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178
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251 if (! isatty (tty_fd)) |
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252 { |
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253 if (interactive) |
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254 error ("stdin is not a tty!"); |
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255 return; |
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256 } |
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257 |
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258 if (on == curr_on) |
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259 return; |
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260 |
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261 #if defined (HAVE_TERMIOS_H) |
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262 { |
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263 struct termios s; |
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264 static struct termios save_term; |
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265 |
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266 if (on) |
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267 { |
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268 // Get terminal modes. |
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269 |
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138
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270 tcgetattr (tty_fd, &s); |
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271 |
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272 // Save modes and set certain variables dependent on modes. |
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273 |
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274 save_term = s; |
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275 // ospeed = s.c_cflag & CBAUD; |
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276 // erase_char = s.c_cc[VERASE]; |
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277 // kill_char = s.c_cc[VKILL]; |
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278 |
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279 // Set the modes to the way we want them. |
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280 |
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281 s.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL); |
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282 s.c_oflag |= (OPOST|ONLCR); |
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283 #if defined (OCRNL) |
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284 s.c_oflag &= ~(OCRNL); |
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285 #endif |
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286 #if defined (ONOCR) |
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287 s.c_oflag &= ~(ONOCR); |
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288 #endif |
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289 #if defined (ONLRET) |
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290 s.c_oflag &= ~(ONLRET); |
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291 #endif |
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292 s.c_cc[VMIN] = 1; |
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293 s.c_cc[VTIME] = 0; |
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294 } |
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295 else |
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296 { |
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297 // Restore saved modes. |
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298 s = save_term; |
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299 } |
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138
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300 tcsetattr (tty_fd, TCSAFLUSH, &s); |
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301 } |
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138
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302 #elif defined (HAVE_TERMIO_H) |
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303 { |
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304 struct termio s; |
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305 static struct termio save_term; |
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306 |
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307 if (on) |
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308 { |
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309 // Get terminal modes. |
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310 |
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311 ioctl (tty_fd, TCGETA, &s); |
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312 |
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313 // Save modes and set certain variables dependent on modes. |
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314 |
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315 save_term = s; |
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316 // ospeed = s.c_cflag & CBAUD; |
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317 // erase_char = s.c_cc[VERASE]; |
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318 // kill_char = s.c_cc[VKILL]; |
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319 |
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320 // Set the modes to the way we want them. |
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321 |
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322 s.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL); |
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323 s.c_oflag |= (OPOST|ONLCR); |
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397
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324 #if defined (OCRNL) |
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325 s.c_oflag &= ~(OCRNL); |
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326 #endif |
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327 #if defined (ONOCR) |
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328 s.c_oflag &= ~(ONOCR); |
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329 #endif |
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330 #if defined (ONLRET) |
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331 s.c_oflag &= ~(ONLRET); |
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367
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332 #endif |
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333 s.c_cc[VMIN] = 1; |
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334 s.c_cc[VTIME] = 0; |
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335 } |
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336 else |
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337 { |
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338 // Restore saved modes. |
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339 s = save_term; |
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340 } |
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341 ioctl (tty_fd, TCSETAW, &s); |
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342 } |
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343 #elif defined (HAVE_SGTTY_H) |
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344 { |
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345 struct sgttyb s; |
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346 static struct sgttyb save_term; |
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347 |
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348 if (on) |
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349 { |
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350 // Get terminal modes. |
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351 |
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352 ioctl (tty_fd, TIOCGETP, &s); |
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353 |
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354 // Save modes and set certain variables dependent on modes. |
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355 |
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356 save_term = s; |
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357 // ospeed = s.sg_ospeed; |
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358 // erase_char = s.sg_erase; |
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359 // kill_char = s.sg_kill; |
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360 |
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361 // Set the modes to the way we want them. |
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362 |
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363 s.sg_flags |= CBREAK; |
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364 s.sg_flags &= ~(ECHO); |
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365 } |
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366 else |
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367 { |
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368 // Restore saved modes. |
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369 s = save_term; |
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370 } |
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138
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371 ioctl (tty_fd, TIOCSETN, &s); |
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372 } |
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373 #else |
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374 LOSE! LOSE! |
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375 #endif |
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376 |
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377 curr_on = on; |
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378 } |
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379 |
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380 /* |
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381 * Read one character from the terminal. |
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382 */ |
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383 int |
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384 kbhit (void) |
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385 { |
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386 int c; |
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387 raw_mode (1); |
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388 c = cin.get (); |
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389 raw_mode (0); |
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390 return c; |
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391 } |
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392 |
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393 char ** |
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394 pathstring_to_vector (char *pathstring) |
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395 { |
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396 static char **path = (char **) NULL; |
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397 |
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398 if (pathstring != (char *) NULL) |
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399 { |
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400 int nelem = 0; |
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240
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401 char *tmp_path = strsave (pathstring); |
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402 if (*tmp_path != '\0') |
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1
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403 { |
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404 nelem++; |
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240
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405 char *ptr = tmp_path; |
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1
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406 while (*ptr != '\0') |
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407 { |
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408 if (*ptr == ':') |
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409 nelem++; |
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410 ptr++; |
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411 } |
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412 } |
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413 |
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240
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414 char **foo = path; |
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415 while (foo && *foo) |
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244
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416 delete [] *foo++; |
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1
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417 delete [] path; |
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244
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418 |
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1
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419 path = new char * [nelem+1]; |
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420 path[nelem] = (char *) NULL; |
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421 |
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422 int i = 0; |
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240
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423 char *ptr = tmp_path; |
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1
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424 while (i < nelem) |
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425 { |
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426 char *end = strchr (ptr, ':'); |
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427 if (end != (char *) NULL) |
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428 *end = '\0'; |
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429 char *result = tilde_expand (ptr); |
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430 path[i] = strsave (result); |
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431 free (result); |
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432 ptr = end + 1; |
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433 i++; |
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434 } |
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435 |
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240
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436 delete [] tmp_path; |
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1
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437 } |
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438 |
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439 return path; |
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440 } |
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441 |
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195
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442 char * |
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1
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443 octave_home (void) |
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444 { |
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422
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445 #ifdef RUN_IN_PLACE |
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446 static char *home = OCTAVE_HOME; |
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447 return home; |
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448 #else |
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1
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449 static char *home = (char *) NULL; |
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450 delete [] home; |
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451 char *oh = getenv ("OCTAVE_HOME"); |
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452 if (oh != (char *) NULL) |
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453 home = strsave (oh); |
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454 else |
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455 home = strsave (OCTAVE_HOME); |
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456 return home; |
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422
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457 #endif |
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1
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458 } |
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459 |
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195
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460 char * |
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1
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461 octave_lib_dir (void) |
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462 { |
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422
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463 #ifdef RUN_IN_PLACE |
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464 static char *ol = OCTAVE_LIB_DIR; |
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465 return ol; |
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466 #else |
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1
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467 static char *ol = (char *) NULL; |
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468 delete [] ol; |
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469 char *oh = octave_home (); |
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470 char *tmp = strconcat (oh, "/lib/octave/"); |
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471 ol = strconcat (tmp, version_string); |
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224
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472 delete [] tmp; |
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1
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473 return ol; |
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422
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474 #endif |
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1
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475 } |
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476 |
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195
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477 char * |
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186
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478 octave_info_dir (void) |
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479 { |
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422
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480 #ifdef RUN_IN_PLACE |
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481 static char *oi = OCTAVE_INFO_DIR; |
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482 return oi; |
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483 #else |
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186
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484 static char *oi = (char *) NULL; |
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485 delete [] oi; |
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486 char *oh = octave_home (); |
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487 oi = strconcat (oh, "/info/"); |
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488 return oi; |
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422
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489 #endif |
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186
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490 } |
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491 |
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224
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492 /* |
|
|
493 * Handle OCTAVE_PATH from the environment like TeX handles TEXINPUTS. |
|
|
494 * If the path starts with `:', prepend the standard path. If it ends |
|
|
495 * with `:' append the standard path. If it begins and ends with |
|
|
496 * `:', do both (which is useless, but the luser asked for it...). |
|
|
497 * |
|
|
498 * This function may eventually be called more than once, so be |
|
|
499 * careful not to create memory leaks. |
|
|
500 */ |
|
1
|
501 char * |
|
|
502 default_path (void) |
|
|
503 { |
|
|
504 static char *pathstring = (char *) NULL; |
|
|
505 delete [] pathstring; |
|
224
|
506 |
|
|
507 static char *std_path = (char *) NULL; |
|
|
508 delete [] std_path; |
|
|
509 |
|
|
510 char *libdir = octave_lib_dir (); |
|
|
511 |
|
|
512 std_path = strconcat (".:", libdir); |
|
|
513 |
|
1
|
514 char *oct_path = getenv ("OCTAVE_PATH"); |
|
224
|
515 |
|
1
|
516 if (oct_path != (char *) NULL) |
|
224
|
517 { |
|
|
518 pathstring = strsave (oct_path); |
|
|
519 |
|
|
520 if (pathstring[0] == ':') |
|
|
521 { |
|
|
522 char *tmp = pathstring; |
|
|
523 pathstring = strconcat (std_path, pathstring); |
|
|
524 delete [] tmp; |
|
|
525 } |
|
|
526 |
|
|
527 int tmp_len = strlen (pathstring); |
|
|
528 if (pathstring[tmp_len-1] == ':') |
|
|
529 { |
|
|
530 char *tmp = pathstring; |
|
|
531 pathstring = strconcat (pathstring, std_path); |
|
|
532 delete [] tmp; |
|
|
533 } |
|
|
534 } |
|
1
|
535 else |
|
224
|
536 pathstring = strsave (std_path); |
|
|
537 |
|
1
|
538 return pathstring; |
|
|
539 } |
|
|
540 |
|
|
541 char * |
|
186
|
542 default_info_file (void) |
|
|
543 { |
|
|
544 static char *info_file_string = (char *) NULL; |
|
|
545 delete [] info_file_string; |
|
|
546 char *oct_info_file = getenv ("OCTAVE_INFO_FILE"); |
|
|
547 if (oct_info_file != (char *) NULL) |
|
|
548 info_file_string = strsave (oct_info_file); |
|
|
549 else |
|
|
550 { |
|
|
551 char *infodir = octave_info_dir (); |
|
478
|
552 info_file_string = strconcat (infodir, "/octave.info"); |
|
186
|
553 } |
|
|
554 return info_file_string; |
|
|
555 } |
|
|
556 |
|
|
557 char * |
|
195
|
558 default_editor (void) |
|
|
559 { |
|
|
560 static char *editor_string = (char *) NULL; |
|
|
561 delete [] editor_string; |
|
|
562 char *env_editor = getenv ("EDITOR"); |
|
|
563 if (env_editor == (char *) NULL || *env_editor == '\0') |
|
|
564 editor_string = strsave ("vi"); |
|
|
565 else |
|
|
566 editor_string = strsave (env_editor); |
|
|
567 return editor_string; |
|
|
568 } |
|
|
569 |
|
|
570 char * |
|
1
|
571 get_site_defaults (void) |
|
|
572 { |
|
|
573 static char *sd = (char *) NULL; |
|
|
574 delete [] sd; |
|
|
575 char *libdir = octave_lib_dir (); |
|
|
576 sd = strconcat (libdir, "/octaverc"); |
|
|
577 return sd; |
|
|
578 } |
|
|
579 |
|
|
580 char * |
|
|
581 default_pager (void) |
|
|
582 { |
|
|
583 static char *pager_binary = (char *) NULL; |
|
|
584 delete [] pager_binary; |
|
|
585 char *pgr = getenv ("PAGER"); |
|
|
586 if (pgr != (char *) NULL) |
|
|
587 pager_binary = strsave (pgr); |
|
|
588 else |
|
|
589 #ifdef DEFAULT_PAGER |
|
|
590 pager_binary = strsave (DEFAULT_PAGER); |
|
|
591 #else |
|
|
592 pager_binary = strsave (""); |
|
|
593 #endif |
|
|
594 |
|
|
595 return pager_binary; |
|
|
596 } |
|
|
597 |
|
|
598 /* |
|
|
599 * See if the given file is in the path. |
|
|
600 */ |
|
|
601 char * |
|
164
|
602 file_in_path (const char *name, const char *suffix) |
|
1
|
603 { |
|
240
|
604 char *retval = (char *) NULL; |
|
|
605 |
|
1
|
606 char *nm = strconcat ("/", name); |
|
|
607 if (suffix != (char *) NULL) |
|
|
608 { |
|
240
|
609 char *tmp = nm; |
|
1
|
610 nm = strconcat (tmp, suffix); |
|
|
611 delete [] tmp; |
|
|
612 } |
|
|
613 |
|
240
|
614 if (! the_current_working_directory) |
|
1
|
615 get_working_directory ("file_in_path"); |
|
|
616 |
|
|
617 char **path = pathstring_to_vector (user_pref.loadpath); |
|
|
618 |
|
|
619 char **ptr = path; |
|
|
620 if (ptr != (char **) NULL) |
|
|
621 { |
|
|
622 while (*ptr != (char *) NULL) |
|
|
623 { |
|
240
|
624 char *tmp = strconcat (*ptr, nm); |
|
|
625 char *p = make_absolute (tmp, the_current_working_directory); |
|
|
626 delete [] tmp; |
|
1
|
627 ifstream in_file (p); |
|
|
628 if (in_file) |
|
|
629 { |
|
|
630 in_file.close (); |
|
240
|
631 retval = p; |
|
|
632 goto done; |
|
1
|
633 } |
|
|
634 delete [] p; |
|
|
635 ptr++; |
|
|
636 } |
|
|
637 } |
|
|
638 |
|
240
|
639 done: |
|
1
|
640 delete [] nm; |
|
240
|
641 return retval; |
|
1
|
642 } |
|
|
643 |
|
|
644 /* |
|
338
|
645 * See if there is an function file in the path. If so, return the |
|
|
646 * full path to the file. |
|
1
|
647 */ |
|
|
648 char * |
|
338
|
649 fcn_file_in_path (const char *name) |
|
1
|
650 { |
|
341
|
651 return file_in_path (name, ".m"); |
|
1
|
652 } |
|
|
653 |
|
|
654 /* |
|
|
655 * Return a pretty pathname. If the first part of the pathname is the |
|
|
656 * same as $HOME, then replace that with `~'. |
|
|
657 */ |
|
|
658 char * |
|
|
659 polite_directory_format (char *name) |
|
|
660 { |
|
|
661 int l = home_directory ? strlen (home_directory) : 0; |
|
|
662 |
|
|
663 if (l > 1 && strncmp (home_directory, name, l) == 0 |
|
240
|
664 && (! name[l] || name[l] == '/')) |
|
1
|
665 { |
|
|
666 strcpy (tdir + 1, name + l); |
|
|
667 tdir[0] = '~'; |
|
|
668 return (tdir); |
|
|
669 } |
|
|
670 else |
|
|
671 return name; |
|
|
672 } |
|
|
673 |
|
|
674 /* |
|
|
675 * Return 1 if STRING contains an absolute pathname, else 0. |
|
|
676 */ |
|
|
677 int |
|
164
|
678 absolute_pathname (const char *string) |
|
1
|
679 { |
|
240
|
680 if (! string || ! *string) |
|
1
|
681 return 0; |
|
|
682 |
|
|
683 if (*string == '/') |
|
|
684 return 1; |
|
|
685 |
|
|
686 if (*string++ == '.') |
|
|
687 { |
|
240
|
688 if ((! *string) || *string == '/') |
|
1
|
689 return 1; |
|
|
690 |
|
|
691 if (*string++ == '.') |
|
240
|
692 if (! *string || *string == '/') |
|
1
|
693 return 1; |
|
|
694 } |
|
|
695 return 0; |
|
|
696 } |
|
|
697 |
|
|
698 /* |
|
|
699 * Return 1 if STRING is an absolute program name; it is absolute if |
|
|
700 * it contains any slashes. This is used to decide whether or not to |
|
|
701 * look up through $PATH. |
|
|
702 */ |
|
|
703 int |
|
164
|
704 absolute_program (const char *string) |
|
1
|
705 { |
|
|
706 return (strchr (string, '/') != (char *)NULL); |
|
|
707 } |
|
|
708 |
|
|
709 /* |
|
|
710 * Return the `basename' of the pathname in STRING (the stuff after |
|
|
711 * the last '/'). If STRING is not a full pathname, simply return it. |
|
|
712 */ |
|
|
713 char * |
|
|
714 base_pathname (char *string) |
|
|
715 { |
|
|
716 char *p = strrchr (string, '/'); |
|
|
717 |
|
240
|
718 if (! absolute_pathname (string)) |
|
1
|
719 return (string); |
|
|
720 |
|
|
721 if (p) |
|
|
722 return (++p); |
|
|
723 else |
|
|
724 return (string); |
|
|
725 } |
|
|
726 |
|
|
727 /* |
|
|
728 * Return the octal number parsed from STRING, or -1 to indicate that |
|
|
729 * the string contained a bad number. |
|
|
730 */ |
|
|
731 int |
|
164
|
732 read_octal (const char *string) |
|
1
|
733 { |
|
|
734 int result = 0; |
|
|
735 int digits = 0; |
|
|
736 |
|
|
737 while (*string && *string >= '0' && *string < '8') |
|
|
738 { |
|
|
739 digits++; |
|
|
740 result = (result * 8) + *string++ - '0'; |
|
|
741 } |
|
|
742 |
|
240
|
743 if (! digits || result > 0777 || *string) |
|
1
|
744 result = -1; |
|
|
745 |
|
|
746 return result; |
|
|
747 } |
|
|
748 |
|
|
749 /* |
|
|
750 * Append SOURCE to TARGET at INDEX. SIZE is the current amount of |
|
|
751 * space allocated to TARGET. SOURCE can be NULL, in which case |
|
|
752 * nothing happens. Gets rid of SOURCE by free ()ing it. Returns |
|
|
753 * TARGET in case the location has changed. |
|
|
754 */ |
|
|
755 char * |
|
|
756 sub_append_string (char *source, char *target, int *index, int *size) |
|
|
757 { |
|
|
758 if (source) |
|
|
759 { |
|
|
760 while ((int)strlen (source) >= (int)(*size - *index)) |
|
|
761 { |
|
|
762 char *tmp = new char [*size += DEFAULT_ARRAY_SIZE]; |
|
|
763 strcpy (tmp, target); |
|
|
764 delete [] target; |
|
|
765 target = tmp; |
|
|
766 } |
|
|
767 |
|
|
768 strcat (target, source); |
|
|
769 *index += strlen (source); |
|
|
770 |
|
|
771 delete [] source; |
|
|
772 } |
|
|
773 return target; |
|
|
774 } |
|
|
775 |
|
|
776 /* |
|
|
777 * Return a string which will be printed as a prompt. The string may |
|
|
778 * contain special characters which are decoded as follows: |
|
|
779 * |
|
|
780 * \t the time |
|
|
781 * \d the date |
|
|
782 * \n CRLF |
|
|
783 * \s the name of the shell (program) |
|
|
784 * \w the current working directory |
|
|
785 * \W the last element of PWD |
|
|
786 * \u your username |
|
|
787 * \h the hostname |
|
|
788 * \# the command number of this command |
|
|
789 * \! the history number of this command |
|
|
790 * \$ a $ or a # if you are root |
|
|
791 * \<octal> character code in octal |
|
|
792 * \\ a backslash |
|
|
793 */ |
|
|
794 char * |
|
164
|
795 decode_prompt_string (const char *string) |
|
1
|
796 { |
|
|
797 int result_size = PROMPT_GROWTH; |
|
|
798 int result_index = 0; |
|
|
799 char *result = new char [PROMPT_GROWTH]; |
|
|
800 int c; |
|
|
801 char *temp = (char *)NULL; |
|
|
802 |
|
|
803 result[0] = 0; |
|
|
804 while (c = *string++) |
|
|
805 { |
|
|
806 if (c == '\\') |
|
|
807 { |
|
|
808 c = *string; |
|
|
809 |
|
|
810 switch (c) |
|
|
811 { |
|
|
812 case '0': |
|
|
813 case '1': |
|
|
814 case '2': |
|
|
815 case '3': |
|
|
816 case '4': |
|
|
817 case '5': |
|
|
818 case '6': |
|
|
819 case '7': |
|
|
820 { |
|
|
821 char octal_string[4]; |
|
|
822 int n; |
|
|
823 |
|
|
824 strncpy (octal_string, string, 3); |
|
|
825 octal_string[3] = '\0'; |
|
|
826 |
|
|
827 n = read_octal (octal_string); |
|
|
828 |
|
|
829 temp = strsave ("\\"); |
|
|
830 if (n != -1) |
|
|
831 { |
|
|
832 string += 3; |
|
|
833 temp[0] = n; |
|
|
834 } |
|
|
835 |
|
|
836 c = 0; |
|
|
837 goto add_string; |
|
|
838 } |
|
|
839 |
|
|
840 case 't': |
|
|
841 case 'd': |
|
|
842 /* Make the current time/date into a string. */ |
|
|
843 { |
|
160
|
844 time_t the_time = time (0); |
|
1
|
845 char *ttemp = ctime (&the_time); |
|
|
846 temp = strsave (ttemp); |
|
|
847 |
|
|
848 if (c == 't') |
|
|
849 { |
|
|
850 strcpy (temp, temp + 11); |
|
|
851 temp[8] = '\0'; |
|
|
852 } |
|
|
853 else |
|
|
854 temp[10] = '\0'; |
|
|
855 |
|
|
856 goto add_string; |
|
|
857 } |
|
|
858 |
|
|
859 case 'n': |
|
240
|
860 if (! no_line_editing) |
|
1
|
861 temp = strsave ("\r\n"); |
|
|
862 else |
|
|
863 temp = strsave ("\n"); |
|
|
864 goto add_string; |
|
|
865 |
|
|
866 case 's': |
|
|
867 { |
|
|
868 temp = base_pathname (prog_name); |
|
|
869 temp = strsave (temp); |
|
|
870 goto add_string; |
|
|
871 } |
|
|
872 |
|
|
873 case 'w': |
|
|
874 case 'W': |
|
|
875 { |
|
|
876 char t_string[MAXPATHLEN]; |
|
|
877 #define EFFICIENT |
|
|
878 #ifdef EFFICIENT |
|
|
879 |
|
|
880 // Use the value of PWD because it is much more effecient. |
|
|
881 |
|
|
882 temp = user_pref.pwd; |
|
|
883 |
|
240
|
884 if (! temp) |
|
1
|
885 getcwd (t_string, MAXPATHLEN); |
|
|
886 else |
|
|
887 strcpy (t_string, temp); |
|
|
888 #else |
|
|
889 getcwd (t_string, MAXPATHLEN); |
|
|
890 #endif /* EFFICIENT */ |
|
|
891 |
|
|
892 if (c == 'W') |
|
|
893 { |
|
|
894 char *dir = strrchr (t_string, '/'); |
|
|
895 if (dir && dir != t_string) |
|
|
896 strcpy (t_string, dir + 1); |
|
|
897 temp = strsave (t_string); |
|
|
898 } |
|
|
899 else |
|
|
900 temp = strsave (polite_directory_format (t_string)); |
|
|
901 goto add_string; |
|
|
902 } |
|
|
903 |
|
|
904 case 'u': |
|
|
905 { |
|
|
906 temp = strsave (user_name); |
|
|
907 |
|
|
908 goto add_string; |
|
|
909 } |
|
|
910 |
|
|
911 case 'h': |
|
|
912 { |
|
|
913 char *t_string; |
|
|
914 |
|
|
915 temp = strsave (host_name); |
|
|
916 if (t_string = strchr (temp, '.')) |
|
|
917 *t_string = '\0'; |
|
|
918 |
|
|
919 goto add_string; |
|
|
920 } |
|
|
921 |
|
|
922 case '#': |
|
|
923 { |
|
278
|
924 char number_buffer[128]; |
|
1
|
925 sprintf (number_buffer, "%d", current_command_number); |
|
|
926 temp = strsave (number_buffer); |
|
|
927 goto add_string; |
|
|
928 } |
|
|
929 |
|
|
930 case '!': |
|
|
931 { |
|
278
|
932 char number_buffer[128]; |
|
1
|
933 int num = current_history_number (); |
|
|
934 if (num > 0) |
|
|
935 sprintf (number_buffer, "%d", num); |
|
|
936 else |
|
|
937 strcpy (number_buffer, "!"); |
|
|
938 temp = strsave (number_buffer); |
|
|
939 goto add_string; |
|
|
940 } |
|
|
941 |
|
|
942 case '$': |
|
|
943 temp = strsave (geteuid () == 0 ? "#" : "$"); |
|
|
944 goto add_string; |
|
|
945 |
|
|
946 case '\\': |
|
|
947 temp = strsave ("\\"); |
|
|
948 goto add_string; |
|
|
949 |
|
|
950 default: |
|
|
951 temp = strsave ("\\ "); |
|
|
952 temp[1] = c; |
|
|
953 |
|
|
954 add_string: |
|
|
955 if (c) |
|
|
956 string++; |
|
|
957 result = |
|
|
958 (char *)sub_append_string (temp, result, |
|
|
959 &result_index, &result_size); |
|
|
960 temp = (char *)NULL; /* Free ()'ed in sub_append_string (). */ |
|
|
961 result[result_index] = '\0'; |
|
|
962 break; |
|
|
963 } |
|
|
964 } |
|
|
965 else |
|
|
966 { |
|
|
967 while (3 + result_index > result_size) |
|
|
968 { |
|
|
969 char *tmp = new char [result_size += PROMPT_GROWTH]; |
|
|
970 strcpy (tmp, result); |
|
|
971 delete [] result; |
|
|
972 result = tmp; |
|
|
973 } |
|
|
974 result[result_index++] = c; |
|
|
975 result[result_index] = '\0'; |
|
|
976 } |
|
|
977 } |
|
|
978 |
|
|
979 #if 0 |
|
|
980 /* I don't really think that this is a good idea. Do you? */ |
|
240
|
981 if (! find_variable ("NO_PROMPT_VARS")) |
|
1
|
982 { |
|
|
983 WORD_LIST *expand_string (), *list; |
|
|
984 char *string_list (); |
|
|
985 |
|
|
986 list = expand_string (result, 1); |
|
|
987 free (result); |
|
|
988 result = string_list (list); |
|
|
989 dispose_words (list); |
|
|
990 } |
|
|
991 #endif |
|
|
992 |
|
|
993 return result; |
|
|
994 } |
|
|
995 |
|
|
996 /* |
|
|
997 * Remove the last N directories from PATH. Do not PATH blank. |
|
164
|
998 * PATH must contain enough space for MAXPATHLEN characters. |
|
1
|
999 */ |
|
|
1000 void |
|
|
1001 pathname_backup (char *path, int n) |
|
|
1002 { |
|
|
1003 register char *p; |
|
|
1004 |
|
240
|
1005 if (! *path) |
|
1
|
1006 return; |
|
|
1007 |
|
|
1008 p = path + (strlen (path) - 1); |
|
|
1009 |
|
|
1010 while (n--) |
|
|
1011 { |
|
|
1012 while (*p == '/' && p != path) |
|
|
1013 p--; |
|
|
1014 |
|
|
1015 while (*p != '/' && p != path) |
|
|
1016 p--; |
|
|
1017 |
|
|
1018 *++p = '\0'; |
|
|
1019 } |
|
|
1020 } |
|
|
1021 |
|
|
1022 /* |
|
|
1023 * Turn STRING (a pathname) into an absolute pathname, assuming that |
|
|
1024 * DOT_PATH contains the symbolic location of '.'. This always |
|
|
1025 * returns a new string, even if STRING was an absolute pathname to |
|
|
1026 * begin with. |
|
|
1027 */ |
|
|
1028 char * |
|
164
|
1029 make_absolute (const char *string, const char *dot_path) |
|
1
|
1030 { |
|
|
1031 static char current_path[MAXPATHLEN]; |
|
|
1032 register char *cp; |
|
|
1033 |
|
240
|
1034 if (! dot_path || *string == '/') |
|
1
|
1035 return strsave (string); |
|
|
1036 |
|
|
1037 strcpy (current_path, dot_path); |
|
|
1038 |
|
240
|
1039 if (! current_path[0]) |
|
1
|
1040 strcpy (current_path, "./"); |
|
|
1041 |
|
|
1042 cp = current_path + (strlen (current_path) - 1); |
|
|
1043 |
|
|
1044 if (*cp++ != '/') |
|
|
1045 *cp++ = '/'; |
|
|
1046 |
|
|
1047 *cp = '\0'; |
|
|
1048 |
|
|
1049 while (*string) |
|
|
1050 { |
|
|
1051 if (*string == '.') |
|
|
1052 { |
|
240
|
1053 if (! string[1]) |
|
1
|
1054 return strsave (current_path); |
|
|
1055 |
|
|
1056 if (string[1] == '/') |
|
|
1057 { |
|
|
1058 string += 2; |
|
|
1059 continue; |
|
|
1060 } |
|
|
1061 |
|
240
|
1062 if (string[1] == '.' && (string[2] == '/' || ! string[2])) |
|
1
|
1063 { |
|
|
1064 string += 2; |
|
|
1065 |
|
|
1066 if (*string) |
|
|
1067 string++; |
|
|
1068 |
|
|
1069 pathname_backup (current_path, 1); |
|
|
1070 cp = current_path + strlen (current_path); |
|
|
1071 continue; |
|
|
1072 } |
|
|
1073 } |
|
|
1074 |
|
|
1075 while (*string && *string != '/') |
|
|
1076 *cp++ = *string++; |
|
|
1077 |
|
|
1078 if (*string) |
|
|
1079 *cp++ = *string++; |
|
|
1080 |
|
|
1081 *cp = '\0'; |
|
|
1082 } |
|
|
1083 return strsave (current_path); |
|
|
1084 } |
|
|
1085 |
|
|
1086 /* |
|
|
1087 * Return a consed string which is the current working directory. |
|
|
1088 * FOR_WHOM is the name of the caller for error printing. |
|
|
1089 */ |
|
|
1090 char * |
|
164
|
1091 get_working_directory (const char *for_whom) |
|
1
|
1092 { |
|
240
|
1093 if (! follow_symbolic_links) |
|
1
|
1094 { |
|
|
1095 if (the_current_working_directory) |
|
|
1096 delete [] the_current_working_directory; |
|
|
1097 |
|
|
1098 the_current_working_directory = (char *)NULL; |
|
|
1099 } |
|
|
1100 |
|
240
|
1101 if (! the_current_working_directory) |
|
1
|
1102 { |
|
|
1103 char *directory; |
|
|
1104 |
|
|
1105 the_current_working_directory = new char [MAXPATHLEN]; |
|
|
1106 directory = getcwd (the_current_working_directory, MAXPATHLEN); |
|
240
|
1107 if (! directory) |
|
1
|
1108 { |
|
|
1109 message (for_whom, the_current_working_directory); |
|
|
1110 delete [] the_current_working_directory; |
|
|
1111 the_current_working_directory = (char *)NULL; |
|
|
1112 return (char *)NULL; |
|
|
1113 } |
|
|
1114 } |
|
|
1115 |
|
|
1116 return the_current_working_directory; |
|
|
1117 } |
|
|
1118 |
|
|
1119 /* |
|
|
1120 * Do the work of changing to the directory NEWDIR. Handle symbolic |
|
|
1121 * link following, etc. |
|
|
1122 */ |
|
|
1123 int |
|
164
|
1124 change_to_directory (const char *newdir) |
|
1
|
1125 { |
|
|
1126 char *t; |
|
|
1127 |
|
|
1128 if (follow_symbolic_links) |
|
|
1129 { |
|
240
|
1130 if (! the_current_working_directory) |
|
1
|
1131 get_working_directory ("cd_links"); |
|
|
1132 |
|
|
1133 if (the_current_working_directory) |
|
|
1134 t = make_absolute (newdir, the_current_working_directory); |
|
|
1135 else |
|
|
1136 t = strsave (newdir); |
|
|
1137 |
|
|
1138 /* Get rid of trailing `/'. */ |
|
|
1139 { |
|
|
1140 register int len_t = strlen (t); |
|
|
1141 if (len_t > 1) |
|
|
1142 { |
|
|
1143 --len_t; |
|
|
1144 if (t[len_t] == '/') |
|
|
1145 t[len_t] = '\0'; |
|
|
1146 } |
|
|
1147 } |
|
|
1148 |
|
|
1149 if (chdir (t) < 0) |
|
|
1150 { |
|
|
1151 delete [] t; |
|
|
1152 return 0; |
|
|
1153 } |
|
|
1154 |
|
|
1155 if (the_current_working_directory) |
|
|
1156 strcpy (the_current_working_directory, t); |
|
|
1157 |
|
|
1158 delete [] t; |
|
|
1159 return 1; |
|
|
1160 } |
|
|
1161 else |
|
|
1162 { |
|
|
1163 if (chdir (newdir) < 0) |
|
|
1164 return 0; |
|
|
1165 else |
|
|
1166 return 1; |
|
|
1167 } |
|
|
1168 } |
|
|
1169 |
|
320
|
1170 #if !defined (HAVE_GETHOSTNAME) && defined (HAVE_SYS_UTSNAME_H) |
|
|
1171 extern "C" |
|
|
1172 { |
|
|
1173 #include <sys/utsname.h> |
|
|
1174 int |
|
|
1175 gethostname (char *name, int namelen) |
|
|
1176 { |
|
|
1177 int i; |
|
|
1178 struct utsname ut; |
|
|
1179 |
|
|
1180 --namelen; |
|
|
1181 |
|
|
1182 uname (&ut); |
|
|
1183 i = strlen (ut.nodename) + 1; |
|
|
1184 strncpy (name, ut.nodename, i < namelen ? i : namelen); |
|
|
1185 name[namelen] = '\0'; |
|
|
1186 |
|
|
1187 return 0; |
|
|
1188 } |
|
|
1189 } |
|
|
1190 #endif |
|
|
1191 |
|
1
|
1192 /* |
|
|
1193 * Has file `A' been modified after time `T'? |
|
|
1194 * |
|
|
1195 * case: |
|
|
1196 * |
|
|
1197 * a newer than t returns 1 |
|
|
1198 * a older than t returns 0 |
|
|
1199 * stat on a fails returns -1 |
|
|
1200 */ |
|
|
1201 int |
|
164
|
1202 is_newer (const char *fa, time_t t) |
|
1
|
1203 { |
|
|
1204 struct stat fa_sb; |
|
|
1205 register int fa_stat; |
|
|
1206 register int status = 0; |
|
|
1207 |
|
|
1208 fa_stat = stat (fa, &fa_sb); |
|
|
1209 if (fa_stat != 0) |
|
|
1210 status = -1; |
|
|
1211 |
|
|
1212 if (status != 0) |
|
|
1213 return status; |
|
|
1214 |
|
|
1215 return (fa_sb.st_mtime > t); |
|
|
1216 } |
|
|
1217 |
|
|
1218 /* |
|
|
1219 * Return to the main command loop in octave.cc. |
|
|
1220 */ |
|
189
|
1221 void |
|
1
|
1222 jump_to_top_level (void) |
|
|
1223 { |
|
|
1224 run_all_unwind_protects (); |
|
|
1225 |
|
|
1226 longjmp (toplevel, 1); |
|
|
1227 } |
|
|
1228 |
|
|
1229 /* |
|
|
1230 * Gag. |
|
|
1231 */ |
|
|
1232 char * |
|
|
1233 s_plural (int i) |
|
|
1234 { |
|
|
1235 static char *empty = ""; |
|
|
1236 static char *s = "s"; |
|
|
1237 return i == 1 ? empty : s; |
|
|
1238 } |
|
|
1239 |
|
|
1240 char * |
|
|
1241 es_plural (int i) |
|
|
1242 { |
|
|
1243 static char *empty = ""; |
|
|
1244 static char *es = "es"; |
|
|
1245 return i == 1 ? es : empty; |
|
|
1246 } |
|
|
1247 |
|
|
1248 char * |
|
|
1249 save_in_tmp_file (tree_constant& t, int ndim = 2, int parametric = 0) |
|
|
1250 { |
|
|
1251 char *name = strsave (tmpnam ((char *) NULL)); |
|
|
1252 if (name != (char *) NULL) |
|
|
1253 { |
|
|
1254 ofstream file (name); |
|
|
1255 if (file) |
|
|
1256 { |
|
|
1257 switch (ndim) |
|
|
1258 { |
|
|
1259 case 2: |
|
|
1260 t.save (file); |
|
|
1261 break; |
|
|
1262 case 3: |
|
|
1263 t.save_three_d (file, parametric); |
|
|
1264 break; |
|
|
1265 default: |
|
|
1266 panic_impossible (); |
|
|
1267 break; |
|
|
1268 } |
|
|
1269 } |
|
|
1270 else |
|
|
1271 { |
|
|
1272 error ("couldn't open temporary output file `%s'", name); |
|
|
1273 delete [] name; |
|
|
1274 name = (char *) NULL; |
|
|
1275 } |
|
|
1276 } |
|
|
1277 return name; |
|
|
1278 } |
|
|
1279 |
|
|
1280 void |
|
|
1281 mark_for_deletion (const char *filename) |
|
|
1282 { |
|
|
1283 char *tmp = strsave (filename); |
|
|
1284 tmp_files.push (tmp); |
|
|
1285 } |
|
|
1286 |
|
|
1287 void |
|
|
1288 cleanup_tmp_files (void) |
|
|
1289 { |
|
|
1290 while (! tmp_files.empty ()) |
|
|
1291 { |
|
|
1292 char *filename = tmp_files.pop (); |
|
|
1293 unlink (filename); |
|
|
1294 delete [] filename; |
|
|
1295 } |
|
|
1296 } |
|
|
1297 |
|
|
1298 int |
|
|
1299 send_to_plot_stream (const char *cmd) |
|
|
1300 { |
|
|
1301 // From sighandlers.cc: |
|
|
1302 extern int pipe_handler_error_count; |
|
|
1303 |
|
|
1304 static int initialized = 0; |
|
|
1305 |
|
|
1306 if (! plot_stream.is_open ()) |
|
|
1307 { |
|
478
|
1308 plot_line_count = 0; |
|
|
1309 |
|
1
|
1310 char *plot_prog = user_pref.gnuplot_binary; |
|
|
1311 if (plot_prog != (char *) NULL) |
|
|
1312 { |
|
|
1313 plot_stream.open (plot_prog); |
|
|
1314 if (! plot_stream.is_open ()) |
|
|
1315 { |
|
|
1316 warning ("plot: unable to open pipe to `%s'", |
|
|
1317 plot_prog); |
|
|
1318 |
|
|
1319 if (strcmp (plot_prog, "gnuplot") != 0) |
|
|
1320 { |
|
217
|
1321 warning ("having trouble finding plotting program."); |
|
|
1322 warning ("trying again with `gnuplot'"); |
|
1
|
1323 goto last_chance; |
|
|
1324 } |
|
|
1325 } |
|
|
1326 } |
|
|
1327 else |
|
|
1328 { |
|
|
1329 last_chance: |
|
|
1330 |
|
|
1331 plot_stream.open ("gnuplot"); |
|
|
1332 |
|
|
1333 if (! plot_stream.is_open ()) |
|
|
1334 { |
|
|
1335 error ("plot: unable to open pipe to `%s'", plot_prog); |
|
|
1336 return -1; |
|
|
1337 } |
|
|
1338 } |
|
|
1339 } |
|
|
1340 |
|
|
1341 if (! initialized) |
|
|
1342 { |
|
|
1343 initialized = 1; |
|
|
1344 plot_stream << "set data style lines\n"; |
|
|
1345 } |
|
|
1346 |
|
|
1347 plot_stream << cmd; |
|
|
1348 plot_stream.flush (); |
|
|
1349 pipe_handler_error_count = 0; |
|
|
1350 |
|
|
1351 return 0; |
|
|
1352 } |
|
|
1353 |
|
|
1354 void |
|
|
1355 close_plot_stream (void) |
|
|
1356 { |
|
|
1357 if (plot_stream.is_open ()) |
|
|
1358 plot_stream.close (); |
|
478
|
1359 |
|
|
1360 plot_line_count = 0; |
|
1
|
1361 } |
|
|
1362 |
|
|
1363 int |
|
287
|
1364 almost_match (const char *std, const char *s, |
|
|
1365 int min_match_len = 1, int case_sens = 1) |
|
1
|
1366 { |
|
|
1367 int stdlen = strlen (std); |
|
|
1368 int slen = strlen (s); |
|
|
1369 |
|
|
1370 return (slen <= stdlen |
|
|
1371 && slen >= min_match_len |
|
287
|
1372 && (case_sens |
|
|
1373 ? (strncmp (std, s, slen) == 0) |
|
|
1374 : (strncasecmp (std, s, slen) == 0))); |
|
|
1375 } |
|
|
1376 |
|
|
1377 /* |
|
|
1378 * Ugh. |
|
|
1379 */ |
|
|
1380 int |
|
|
1381 keyword_almost_match (const char **std, int *min_len, const char *s, |
|
|
1382 int min_toks_to_match, int max_toks) |
|
|
1383 { |
|
|
1384 int status = 0; |
|
|
1385 int tok_count = 0; |
|
|
1386 int toks_matched = 0; |
|
|
1387 |
|
|
1388 if (s == NULL || *s == '\0' || max_toks < 1) |
|
|
1389 return status; |
|
|
1390 |
|
|
1391 char *kw = strsave (s); |
|
|
1392 |
|
|
1393 char *t = kw; |
|
|
1394 while (*t != '\0') |
|
|
1395 { |
|
|
1396 if (*t == '\t') |
|
|
1397 *t = ' '; |
|
|
1398 t++; |
|
|
1399 } |
|
|
1400 |
|
|
1401 char *beg = kw; |
|
|
1402 while (*beg == ' ') |
|
|
1403 beg++; |
|
|
1404 |
|
|
1405 if (*beg == '\0') |
|
|
1406 return status; |
|
|
1407 |
|
|
1408 |
|
|
1409 char **to_match = new char * [max_toks + 1]; |
|
|
1410 char **s1 = std; |
|
|
1411 char **s2 = to_match; |
|
|
1412 |
|
|
1413 if (s1 == NULL || s2 == NULL) |
|
|
1414 goto done; |
|
|
1415 |
|
|
1416 s2[tok_count] = beg; |
|
|
1417 char *end; |
|
|
1418 while ((end = strchr (beg, ' ')) != NULL) |
|
|
1419 { |
|
|
1420 *end = '\0'; |
|
|
1421 beg = end + 1; |
|
|
1422 |
|
|
1423 while (*beg == ' ') |
|
|
1424 beg++; |
|
|
1425 |
|
|
1426 if (*beg == '\0') |
|
|
1427 break; |
|
|
1428 |
|
|
1429 tok_count++; |
|
|
1430 if (tok_count >= max_toks) |
|
|
1431 goto done; |
|
|
1432 |
|
|
1433 s2[tok_count] = beg; |
|
|
1434 } |
|
|
1435 s2[tok_count+1] = NULL; |
|
|
1436 |
|
|
1437 s2 = to_match; |
|
|
1438 |
|
|
1439 for (;;) |
|
|
1440 { |
|
|
1441 if (! almost_match (*s1, *s2, min_len[toks_matched], 0)) |
|
|
1442 goto done; |
|
|
1443 |
|
|
1444 toks_matched++; |
|
|
1445 |
|
|
1446 s1++; |
|
|
1447 s2++; |
|
|
1448 |
|
|
1449 if (! *s2) |
|
|
1450 { |
|
|
1451 status = (toks_matched >= min_toks_to_match); |
|
|
1452 goto done; |
|
|
1453 } |
|
|
1454 |
|
|
1455 if (! *s1) |
|
|
1456 goto done; |
|
|
1457 } |
|
|
1458 |
|
|
1459 done: |
|
|
1460 |
|
|
1461 delete [] kw; |
|
|
1462 delete [] to_match; |
|
|
1463 |
|
|
1464 return status; |
|
1
|
1465 } |
|
|
1466 |
|
|
1467 char ** |
|
338
|
1468 get_fcn_file_names (int& num, const char *dir, int no_suffix) |
|
1
|
1469 { |
|
|
1470 static int num_max = 256; |
|
|
1471 char **retval = new char * [num_max]; |
|
|
1472 int i = 0; |
|
|
1473 |
|
|
1474 DIR *dirp = opendir (dir); |
|
|
1475 if (dirp != (DIR *) NULL) |
|
|
1476 { |
|
|
1477 struct dirent *entry; |
|
|
1478 while ((entry = readdir (dirp)) != (struct dirent *) NULL) |
|
|
1479 { |
|
|
1480 int len = NLENGTH (entry); |
|
|
1481 if (len > 2 |
|
|
1482 && entry->d_name[len-2] == '.' |
|
|
1483 && entry->d_name[len-1] == 'm') |
|
|
1484 { |
|
|
1485 retval[i] = strsave (entry->d_name); |
|
|
1486 if (no_suffix) |
|
|
1487 retval[i][len-2] = '\0'; |
|
|
1488 |
|
|
1489 i++; |
|
|
1490 |
|
|
1491 if (i == num_max - 1) |
|
|
1492 { |
|
244
|
1493 // Reallocate the array. Only copy pointers, not the strings they |
|
|
1494 // point to, then only delete the original array of pointers, and not |
|
|
1495 // the strings they point to. |
|
|
1496 |
|
1
|
1497 num_max += 256; |
|
|
1498 char **tmp = new char * [num_max]; |
|
|
1499 for (int j = 0; j < i; j++) |
|
|
1500 tmp[j] = retval[j]; |
|
|
1501 |
|
244
|
1502 delete [] retval; |
|
|
1503 |
|
1
|
1504 retval = tmp; |
|
|
1505 } |
|
|
1506 } |
|
|
1507 } |
|
106
|
1508 closedir (dirp); |
|
1
|
1509 } |
|
|
1510 |
|
|
1511 retval[i] = (char *) NULL; |
|
|
1512 num = i; |
|
|
1513 |
|
|
1514 return retval; |
|
|
1515 } |
|
|
1516 |
|
|
1517 char ** |
|
338
|
1518 get_fcn_file_names (int& num, int no_suffix) |
|
1
|
1519 { |
|
|
1520 static int num_max = 1024; |
|
|
1521 char **retval = new char * [num_max]; |
|
|
1522 int i = 0; |
|
|
1523 |
|
|
1524 char **path = pathstring_to_vector (user_pref.loadpath); |
|
|
1525 |
|
|
1526 char **ptr = path; |
|
|
1527 if (ptr != (char **) NULL) |
|
|
1528 { |
|
|
1529 while (*ptr != (char *) NULL) |
|
|
1530 { |
|
|
1531 int tmp_num; |
|
338
|
1532 char **names = get_fcn_file_names (tmp_num, *ptr, no_suffix); |
|
1
|
1533 |
|
|
1534 if (i + tmp_num >= num_max - 1) |
|
|
1535 { |
|
244
|
1536 // Reallocate the array. Only copy pointers, not the strings they |
|
|
1537 // point to, then only delete the original array of pointers, and not |
|
|
1538 // the strings they point to. |
|
|
1539 |
|
1
|
1540 num_max += 1024; |
|
|
1541 char **tmp = new char * [num_max]; |
|
|
1542 for (int j = 0; j < i; j++) |
|
|
1543 tmp[j] = retval[j]; |
|
|
1544 |
|
244
|
1545 delete [] retval; |
|
|
1546 |
|
1
|
1547 retval = tmp; |
|
|
1548 } |
|
|
1549 |
|
|
1550 int k = 0; |
|
|
1551 while (k < tmp_num) |
|
|
1552 retval[i++] = names[k++]; |
|
|
1553 |
|
|
1554 ptr++; |
|
|
1555 } |
|
|
1556 } |
|
|
1557 |
|
|
1558 retval[i] = (char *) NULL; |
|
|
1559 num = i; |
|
|
1560 |
|
|
1561 return retval; |
|
|
1562 } |
|
|
1563 |
|
|
1564 int |
|
|
1565 NINT (double x) |
|
|
1566 { |
|
|
1567 if (x > INT_MAX) |
|
|
1568 return INT_MAX; |
|
|
1569 else if (x < INT_MIN) |
|
|
1570 return INT_MIN; |
|
|
1571 else |
|
|
1572 return (x > 0) ? ((int) (x + 0.5)) : ((int) (x - 0.5)); |
|
|
1573 } |
|
|
1574 |
|
|
1575 double |
|
|
1576 D_NINT (double x) |
|
|
1577 { |
|
|
1578 if (xisinf (x) || xisnan (x)) |
|
|
1579 return x; |
|
|
1580 else |
|
|
1581 return floor (x + 0.5); |
|
|
1582 } |
|
|
1583 |
|
|
1584 /* |
|
|
1585 ;;; Local Variables: *** |
|
|
1586 ;;; mode: C++ *** |
|
|
1587 ;;; page-delimiter: "^/\\*" *** |
|
|
1588 ;;; End: *** |
|
|
1589 */ |
