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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <cstdlib> |
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28 |
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29 #include <string> |
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30 |
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31 #include "lo-utils.h" |
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32 #include "oct-env.h" |
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33 #include "oct-kpse.h" |
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34 #include "pathsearch.h" |
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35 #include "str-vec.h" |
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36 #include "str-vec.h" |
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37 |
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38 static bool octave_kpathsea_initialized = false; |
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39 |
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40 string_vector |
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41 dir_path::elements (void) |
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42 { |
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43 return initialized ? pv : string_vector (); |
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44 } |
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45 |
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46 string_vector |
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47 dir_path::all_directories (void) |
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48 { |
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49 int count = 0; |
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50 string_vector retval; |
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51 |
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52 if (initialized) |
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53 { |
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54 int len = pv.length (); |
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55 |
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56 int nmax = len > 32 ? len : 32; |
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57 |
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58 retval.resize (len); |
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59 |
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60 for (int i = 0; i < len; i++) |
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61 { |
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62 str_llist_type *elt_dirs |
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63 = ::octave_kpse_element_dirs (pv[i].c_str ()); |
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64 |
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65 if (elt_dirs) |
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66 { |
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67 str_llist_elt_type *dir; |
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68 |
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69 for (dir = *elt_dirs; dir; dir = STR_LLIST_NEXT (*dir)) |
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70 { |
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71 char *elt_dir = STR_LLIST (*dir); |
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72 |
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73 if (elt_dir) |
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74 { |
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75 if (count == nmax) |
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76 nmax *= 2; |
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77 |
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78 retval.resize (nmax); |
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79 |
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80 retval[count++] = elt_dir; |
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81 } |
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82 } |
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83 } |
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84 } |
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85 |
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86 retval.resize (count); |
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87 } |
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88 |
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89 return retval; |
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90 } |
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91 |
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92 std::string |
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93 dir_path::find_first (const std::string& nm) |
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94 { |
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95 std::string retval; |
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96 |
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97 if (initialized) |
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98 { |
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99 char *tmp = ::octave_kpse_path_search (p.c_str (), nm.c_str (), true); |
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100 if (tmp) |
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101 { |
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102 retval = tmp; |
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103 free (tmp); |
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104 } |
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105 } |
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106 |
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107 return retval; |
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108 } |
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109 |
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110 string_vector |
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111 dir_path::find_all (const std::string& nm) |
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112 { |
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113 string_vector retval; |
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114 |
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115 if (initialized) |
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116 { |
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117 char **tmp = ::octave_kpse_all_path_search (p.c_str (), nm.c_str ()); |
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118 |
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119 if (tmp) |
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120 { |
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121 int count = 0; |
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122 char **ptr = tmp; |
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123 while (*ptr++) |
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124 count++; |
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125 |
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126 retval.resize (count); |
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127 |
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128 for (int i = 0; i < count; i++) |
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129 retval[i] = tmp[i]; |
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130 } |
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131 } |
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132 |
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133 return retval; |
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134 } |
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135 |
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136 void |
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137 dir_path::set_program_name (const std::string& nm) |
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138 { |
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139 std::string selfautodir = octave_env::getenv ("SELFAUTODIR"); |
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140 std::string selfautoloc = octave_env::getenv ("SELFAUTOLOC"); |
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141 std::string selfautoparent = octave_env::getenv ("SELFAUTOPARENT"); |
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142 |
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143 ::octave_kpse_set_progname (nm.c_str ()); |
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144 |
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145 // Calling kpse_set_progname has the unfortunate side-effect of |
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146 // exporting the following variables. If they were empty when we |
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147 // started, we make them empty again so that they will not interfere |
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148 // with TeX if it is run as a subprocess of Octave (if they were set |
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149 // before, we want to preserve their values). |
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150 // |
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151 // XXX FIXME XXX -- is there a reasonable way to actually remove |
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152 // them from the environment? |
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153 |
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154 if (selfautodir.empty ()) |
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155 octave_env::putenv ("SELFAUTODIR", ""); |
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156 |
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157 if (selfautoloc.empty ()) |
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158 octave_env::putenv ("SELFAUTOLOC", ""); |
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159 |
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160 if (selfautoparent.empty ()) |
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161 octave_env::putenv ("SELFAUTOPARENT", ""); |
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162 } |
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163 |
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164 void |
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165 dir_path::init (void) |
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166 { |
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167 if (! octave_kpathsea_initialized) |
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168 { |
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169 char *s = getenv ("KPATHSEA_DEBUG"); |
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170 |
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171 if (s) |
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172 kpathsea_debug |= atoi (s); |
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173 |
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174 octave_kpathsea_initialized = true; |
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175 } |
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176 |
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177 char *t1 = 0; |
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178 |
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179 if (p_default.empty ()) |
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180 t1 = ::octave_kpse_path_expand (p_orig.c_str ()); |
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181 else |
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182 { |
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183 char *t2 |
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184 = ::octave_kpse_expand_default (p_orig.c_str (), p_default.c_str ()); |
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185 |
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186 t1 = ::octave_kpse_path_expand (t2); |
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187 |
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188 if (t2) |
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189 free (t2); |
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190 } |
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191 |
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192 if (t1) |
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193 { |
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194 p = t1; |
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195 free (t1); |
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196 } |
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197 else |
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198 p = std::string (); |
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199 |
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200 int count = 0; |
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201 char *path_elt = ::octave_kpse_path_element (p.c_str ()); |
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202 while (path_elt) |
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203 { |
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204 path_elt = ::octave_kpse_path_element (0); |
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205 count++; |
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206 } |
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207 |
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208 pv.resize (count); |
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209 |
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210 path_elt = ::octave_kpse_path_element (p.c_str ()); |
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211 |
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212 for (int i = 0; i < count; i++) |
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213 { |
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214 pv[i] = path_elt; |
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215 path_elt = ::octave_kpse_path_element (0); |
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216 } |
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217 |
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218 initialized = true; |
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219 } |
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220 |
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221 /* |
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222 ;;; Local Variables: *** |
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223 ;;; mode: C++ *** |
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224 ;;; End: *** |
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225 */ |
