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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 |
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101 if (tmp) |
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102 { |
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103 retval = tmp; |
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104 free (tmp); |
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105 } |
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106 } |
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107 |
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108 return retval; |
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109 } |
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110 |
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111 static string_vector |
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112 make_retval (char **tmp) |
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113 { |
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114 string_vector retval; |
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115 |
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116 if (tmp) |
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117 { |
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118 int count = 0; |
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119 char **ptr = tmp; |
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120 while (*ptr++) |
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121 count++; |
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122 |
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123 retval.resize (count); |
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124 |
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125 for (int i = 0; i < count; i++) |
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126 retval[i] = tmp[i]; |
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127 } |
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128 |
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129 return retval; |
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130 } |
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131 |
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132 static void |
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133 free_c_array (char **tmp) |
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134 { |
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135 if (tmp) |
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136 { |
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137 char **ptr = tmp; |
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138 |
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139 while (char *elt = *ptr++) |
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140 if (elt) |
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141 free (elt); |
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142 |
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143 free (tmp); |
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144 } |
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145 } |
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146 |
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147 string_vector |
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148 dir_path::find_all (const std::string& nm) |
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149 { |
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150 string_vector retval; |
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151 |
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152 if (initialized) |
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153 { |
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154 char **tmp = ::octave_kpse_all_path_search (p.c_str (), nm.c_str ()); |
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155 |
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156 retval = make_retval (tmp); |
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157 |
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158 free_c_array (tmp); |
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159 } |
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160 |
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161 return retval; |
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162 } |
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163 |
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164 static const char ** |
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165 make_c_names (const string_vector& names) |
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166 { |
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167 int len = names.length (); |
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168 |
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169 const char **c_names = new const char *[len+1]; |
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170 |
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171 for (int i = 0; i < len; i++) |
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172 c_names[i] = strsave (names[i].c_str ()); |
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173 |
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174 c_names[len] = 0; |
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175 |
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176 return c_names; |
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177 } |
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178 |
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179 static void |
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180 delete_c_names (const char **c_names) |
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181 { |
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182 const char **p = c_names; |
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183 |
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184 while (const char *elt = *p++) |
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185 delete [] elt; |
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186 |
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187 delete [] c_names; |
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188 } |
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189 |
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190 std::string |
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191 dir_path::find_first_of (const string_vector& names) |
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192 { |
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193 std::string retval; |
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194 |
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195 if (initialized) |
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196 { |
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197 const char **c_names = make_c_names (names); |
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198 |
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199 char *tmp = ::octave_kpse_path_find_first_of (p.c_str (), c_names, true); |
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200 |
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201 delete_c_names (c_names); |
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202 |
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203 if (tmp) |
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204 { |
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205 retval = tmp; |
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206 free (tmp); |
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207 } |
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208 } |
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209 |
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210 return retval; |
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211 } |
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212 |
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213 string_vector |
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214 dir_path::find_all_first_of (const string_vector& names) |
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215 { |
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216 string_vector retval; |
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217 |
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218 if (initialized) |
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219 { |
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220 const char **c_names = make_c_names (names); |
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221 |
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222 char **tmp = ::octave_kpse_all_path_find_first_of (p.c_str (), c_names); |
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223 |
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224 delete_c_names (c_names); |
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225 |
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226 retval = make_retval (tmp); |
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227 |
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228 free_c_array (tmp); |
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229 } |
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230 |
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231 return retval; |
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232 } |
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233 |
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234 void |
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235 dir_path::set_program_name (const std::string& nm) |
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236 { |
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237 std::string selfautodir = octave_env::getenv ("SELFAUTODIR"); |
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238 std::string selfautoloc = octave_env::getenv ("SELFAUTOLOC"); |
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239 std::string selfautoparent = octave_env::getenv ("SELFAUTOPARENT"); |
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240 |
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241 ::octave_kpse_set_progname (nm.c_str ()); |
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242 |
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243 // Calling kpse_set_progname has the unfortunate side-effect of |
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244 // exporting the following variables. If they were empty when we |
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245 // started, we make them empty again so that they will not interfere |
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246 // with TeX if it is run as a subprocess of Octave (if they were set |
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247 // before, we want to preserve their values). |
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248 // |
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249 // XXX FIXME XXX -- is there a reasonable way to actually remove |
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250 // them from the environment? |
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251 |
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252 if (selfautodir.empty ()) |
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253 octave_env::putenv ("SELFAUTODIR", ""); |
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254 |
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255 if (selfautoloc.empty ()) |
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256 octave_env::putenv ("SELFAUTOLOC", ""); |
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257 |
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258 if (selfautoparent.empty ()) |
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259 octave_env::putenv ("SELFAUTOPARENT", ""); |
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260 } |
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261 |
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262 void |
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263 dir_path::init (void) |
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264 { |
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265 if (! octave_kpathsea_initialized) |
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266 { |
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267 char *s = getenv ("KPATHSEA_DEBUG"); |
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268 |
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269 if (s) |
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270 kpathsea_debug |= atoi (s); |
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271 |
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272 octave_kpathsea_initialized = true; |
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273 } |
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274 |
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275 char *t1 = 0; |
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276 |
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277 if (p_default.empty ()) |
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278 t1 = ::octave_kpse_path_expand (p_orig.c_str ()); |
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279 else |
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280 { |
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281 char *t2 |
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282 = ::octave_kpse_expand_default (p_orig.c_str (), p_default.c_str ()); |
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283 |
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284 t1 = ::octave_kpse_path_expand (t2); |
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285 |
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286 if (t2) |
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287 free (t2); |
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288 } |
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289 |
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290 if (t1) |
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291 { |
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292 p = t1; |
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293 free (t1); |
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294 } |
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295 else |
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296 p = std::string (); |
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297 |
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298 int count = 0; |
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299 char *path_elt = ::octave_kpse_path_element (p.c_str ()); |
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300 while (path_elt) |
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301 { |
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302 path_elt = ::octave_kpse_path_element (0); |
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303 count++; |
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304 } |
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305 |
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306 pv.resize (count); |
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307 |
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308 path_elt = ::octave_kpse_path_element (p.c_str ()); |
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309 |
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310 for (int i = 0; i < count; i++) |
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311 { |
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312 pv[i] = path_elt; |
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313 path_elt = ::octave_kpse_path_element (0); |
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314 } |
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315 |
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316 initialized = true; |
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317 } |
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318 |
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319 /* |
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320 ;;; Local Variables: *** |
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321 ;;; mode: C++ *** |
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322 ;;; End: *** |
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323 */ |
