Mercurial > jwe > octave
annotate libinterp/corefcn/load-path.h @ 30152:4f039927308b
maint: use "s_" prefix for static variables in class load_path.
* load-path.cc, load-path.h: Use "s_" prefix for static variables in class
load_path.
author | Rik <rik@octave.org> |
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date | Thu, 09 Sep 2021 20:07:29 -0700 |
parents | 1955fc6e2128 |
children | 14b098a6ba46 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 2006-2021 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
5832 | 25 |
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26 #if ! defined (octave_load_path_h) |
5832 | 27 #define octave_load_path_h 1 |
28 | |
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29 #include "octave-config.h" |
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30 |
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31 #include <functional> |
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32 #include <iosfwd> |
5832 | 33 #include <list> |
34 #include <map> | |
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35 #include <set> |
5832 | 36 #include <string> |
37 | |
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38 #include "oct-time.h" |
5835 | 39 #include "pathsearch.h" |
5832 | 40 #include "str-vec.h" |
41 | |
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42 OCTAVE_NAMESPACE_BEGIN |
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43 |
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44 class |
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45 OCTINTERP_API |
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46 load_path |
5832 | 47 { |
48 public: | |
49 | |
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50 load_path (interpreter& interp); |
5832 | 51 |
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52 typedef void (*hook_fcn_ptr) (const std::string& dir); |
5832 | 53 |
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54 load_path (const load_path&) = delete; |
5832 | 55 |
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56 load_path& operator = (const load_path&) = delete; |
5832 | 57 |
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58 ~load_path (void) = default; |
5832 | 59 |
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60 void initialize (bool set_initial_path = false); |
5832 | 61 |
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62 void clear (void); |
7336 | 63 |
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64 void set (const std::string& p, bool warn = false, bool is_init = false); |
7336 | 65 |
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66 void append (const std::string& dir, bool warn = false); |
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67 |
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68 void prepend (const std::string& dir, bool warn = false); |
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69 |
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70 bool remove (const std::string& dir); |
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71 |
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72 void update (void) const; |
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73 |
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74 bool contains_canonical (const std::string& dir_name) const; |
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75 |
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76 bool contains_file_in_dir (const std::string& file_name, |
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77 const std::string& dir_name); |
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78 |
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79 std::string find_method (const std::string& class_name, |
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80 const std::string& meth, |
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81 std::string& dir_name, |
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82 const std::string& pack_name = "") |
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83 { |
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84 return get_package (pack_name).find_method (class_name, meth, dir_name); |
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85 } |
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86 |
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87 std::string find_method (const std::string& class_name, |
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88 const std::string& meth, |
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89 const std::string& pack_name = "") |
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90 { |
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91 std::string dir_name; |
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92 return find_method (class_name, meth, dir_name, pack_name); |
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93 } |
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94 |
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95 std::list<std::string> methods (const std::string& class_name, |
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96 const std::string& pack_name = "") |
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97 { |
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98 return get_package (pack_name).methods (class_name); |
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99 } |
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100 |
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101 std::list<std::string> overloads (const std::string& meth) const; |
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102 |
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103 bool find_package (const std::string& package_name) const |
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104 { |
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105 return (m_package_map.find (package_name) != m_package_map.end ()); |
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106 } |
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107 |
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108 std::list<std::string> |
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109 get_all_package_names (bool only_top_level = true) const; |
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110 |
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111 std::string find_fcn (const std::string& fcn, std::string& dir_name, |
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112 const std::string& pack_name = "") |
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113 { |
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114 return get_package (pack_name).find_fcn (fcn, dir_name); |
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115 } |
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116 |
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117 std::string find_fcn (const std::string& fcn, |
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118 const std::string& pack_name = "") |
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119 { |
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120 std::string dir_name; |
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121 return find_fcn (fcn, dir_name, pack_name); |
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122 } |
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123 |
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124 std::string find_private_fcn (const std::string& dir, |
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125 const std::string& fcn, |
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126 const std::string& pack_name = "") |
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127 { |
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128 return get_package (pack_name).find_private_fcn (dir, fcn); |
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129 } |
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130 |
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131 std::string find_fcn_file (const std::string& fcn, |
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132 const std::string& pack_name = "") |
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133 { |
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134 std::string dir_name; |
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135 return get_package (pack_name).find_fcn (fcn, dir_name, M_FILE); |
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136 } |
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137 |
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138 std::string find_oct_file (const std::string& fcn, |
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139 const std::string& pack_name = "") |
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140 { |
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141 std::string dir_name; |
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142 return get_package (pack_name).find_fcn (fcn, dir_name, M_FILE); |
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143 } |
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144 |
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145 std::string find_mex_file (const std::string& fcn, |
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146 const std::string& pack_name = "") |
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147 { |
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148 std::string dir_name; |
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149 return get_package (pack_name).find_fcn (fcn, dir_name, M_FILE); |
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150 } |
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151 |
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152 std::string find_file (const std::string& file) const; |
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153 |
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154 std::string find_dir (const std::string& dir) const; |
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155 |
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156 string_vector find_matching_dirs (const std::string& dir) const; |
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157 |
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158 std::string find_first_of (const string_vector& files) const; |
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159 |
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160 string_vector find_all_first_of (const string_vector& files) const; |
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161 |
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162 string_vector dirs (void) const; |
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163 |
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164 std::list<std::string> dir_list (void) const; |
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165 |
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166 string_vector files (const std::string& dir, bool omit_exts = false) const; |
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167 |
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168 string_vector fcn_names (void) const; |
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169 |
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170 std::string path (void) const; |
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171 |
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172 void display (std::ostream& os) const; |
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173 |
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174 std::function<void (const std::string&)> get_add_hook (void) |
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175 { |
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176 return add_hook; |
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177 } |
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178 |
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179 std::function<void (const std::string&)> get_remove_hook (void) |
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180 { |
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181 return remove_hook; |
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182 } |
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183 |
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184 void set_add_hook (const std::function<void (const std::string&)>& f) |
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185 { |
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186 add_hook = f; |
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187 } |
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188 |
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189 void set_remove_hook (const std::function<void (const std::string&)>& f) |
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190 { |
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191 remove_hook = f; |
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192 } |
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193 |
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194 void read_dir_config (const std::string& dir) const; |
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195 |
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196 void execute_pkg_add (const std::string& dir); |
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197 void execute_pkg_del (const std::string& dir); |
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198 |
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199 void set_command_line_path (const std::string& p) |
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200 { |
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201 if (m_command_line_path.empty ()) |
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202 m_command_line_path = p; |
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203 else |
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204 m_command_line_path += directory_path::path_sep_str () + p; |
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205 } |
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206 |
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207 std::string get_command_line_path (void) const |
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208 { |
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209 return m_command_line_path; |
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210 } |
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211 |
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212 std::string system_path (void) const { return s_sys_path; } |
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213 |
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214 static const int M_FILE = 1; |
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215 static const int OCT_FILE = 2; |
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216 static const int MEX_FILE = 4; |
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217 |
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218 private: |
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219 |
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220 class dir_info |
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221 { |
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222 public: |
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223 |
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224 // <FCN_NAME, TYPE> |
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225 typedef std::map<std::string, int> fcn_file_map_type; |
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226 |
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227 typedef fcn_file_map_type::const_iterator const_fcn_file_map_iterator; |
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228 typedef fcn_file_map_type::iterator fcn_file_map_iterator; |
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229 |
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230 struct class_info |
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231 { |
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232 class_info (void) : method_file_map (), private_file_map () { } |
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233 |
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234 class_info (const class_info& ci) |
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235 : method_file_map (ci.method_file_map), |
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236 private_file_map (ci.private_file_map) |
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237 { } |
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238 |
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239 class_info& operator = (const class_info& ci) |
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240 { |
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241 if (this != &ci) |
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242 { |
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243 method_file_map = ci.method_file_map; |
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244 private_file_map = ci.private_file_map; |
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245 } |
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246 return *this; |
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247 } |
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248 |
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249 ~class_info (void) = default; |
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250 |
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251 fcn_file_map_type method_file_map; |
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252 fcn_file_map_type private_file_map; |
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253 }; |
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254 |
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255 // <CLASS_NAME, CLASS_INFO> |
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256 typedef std::map<std::string, class_info> method_file_map_type; |
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257 |
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258 typedef method_file_map_type::const_iterator const_method_file_map_iterator; |
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259 typedef method_file_map_type::iterator method_file_map_iterator; |
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260 |
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261 // <PACKAGE_NAME, DIR_INFO> |
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262 typedef std::map<std::string, dir_info> package_dir_map_type; |
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263 |
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264 typedef package_dir_map_type::const_iterator const_package_dir_map_iterator; |
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265 typedef package_dir_map_type::iterator package_dir_map_iterator; |
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266 |
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267 // This default constructor is only provided so we can create a |
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268 // std::map of dir_info objects. You should not use this |
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269 // constructor for any other purpose. |
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270 dir_info (void) = default; |
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271 |
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272 dir_info (const std::string& d) |
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273 : dir_name (d), abs_dir_name (), is_relative (false), |
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274 dir_mtime (), dir_time_last_checked (), all_files (), fcn_files (), |
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275 private_file_map (), method_file_map (), package_dir_map () |
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276 { |
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277 initialize (); |
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278 } |
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279 |
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280 dir_info (const dir_info&) = default; |
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281 |
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282 ~dir_info (void) = default; |
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283 |
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284 dir_info& operator = (const dir_info&) = default; |
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285 |
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286 bool update (void); |
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287 |
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288 std::string dir_name; |
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289 std::string abs_dir_name; |
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290 bool is_relative; |
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291 sys::time dir_mtime; |
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292 sys::time dir_time_last_checked; |
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293 string_vector all_files; |
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294 string_vector fcn_files; |
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295 fcn_file_map_type private_file_map; |
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296 method_file_map_type method_file_map; |
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297 package_dir_map_type package_dir_map; |
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298 |
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299 bool is_package (const std::string& name) const; |
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300 |
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301 private: |
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302 |
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303 void initialize (void); |
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304 |
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305 void get_file_list (const std::string& d); |
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306 |
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307 void get_private_file_map (const std::string& d); |
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308 |
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309 void get_method_file_map (const std::string& d, |
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310 const std::string& class_name); |
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311 |
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312 void get_package_dir (const std::string& d, |
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313 const std::string& package_name); |
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314 |
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315 friend fcn_file_map_type get_fcn_files (const std::string& d); |
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316 }; |
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317 |
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318 class file_info |
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319 { |
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320 public: |
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321 |
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322 file_info (const std::string& d, int t) : dir_name (d), types (t) { } |
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323 |
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324 file_info (const file_info& fi) |
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325 : dir_name (fi.dir_name), types (fi.types) { } |
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326 |
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327 ~file_info (void) = default; |
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328 |
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329 file_info& operator = (const file_info& fi) |
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330 { |
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331 if (&fi != this) |
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332 { |
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333 dir_name = fi.dir_name; |
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334 types = fi.types; |
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335 } |
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336 |
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337 return *this; |
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338 } |
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339 |
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340 std::string dir_name; |
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341 int types; |
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342 }; |
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344 // We maintain two ways of looking at the same information. |
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345 // |
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346 // First, a list of directories and the set of "public" files and |
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347 // private files (those found in the special "private" subdirectory) |
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348 // in each directory. |
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349 // |
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350 // Second, a map from filenames (the union of all "public" files for all |
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351 // directories, but without filename extensions) to a list of |
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352 // corresponding information (directory name and file types). This |
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353 // way, we can quickly find shadowed filenames and look up all |
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354 // overloaded functions (in the "@" directories used to implement |
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355 // classes). |
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356 |
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357 typedef std::list<dir_info> dir_info_list_type; |
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358 |
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359 typedef dir_info_list_type::const_iterator const_dir_info_list_iterator; |
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360 typedef dir_info_list_type::iterator dir_info_list_iterator; |
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361 |
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362 typedef std::map<std::string, dir_info> abs_dir_cache_type; |
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363 |
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364 typedef abs_dir_cache_type::const_iterator const_abs_dir_cache_iterator; |
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365 typedef abs_dir_cache_type::iterator abs_dir_cache_iterator; |
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366 |
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367 typedef std::list<file_info> file_info_list_type; |
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368 |
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369 typedef file_info_list_type::const_iterator const_file_info_list_iterator; |
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370 typedef file_info_list_type::iterator file_info_list_iterator; |
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371 |
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372 // <FCN_NAME, FILE_INFO_LIST> |
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373 typedef std::map<std::string, file_info_list_type> fcn_map_type; |
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374 |
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375 typedef fcn_map_type::const_iterator const_fcn_map_iterator; |
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376 typedef fcn_map_type::iterator fcn_map_iterator; |
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377 |
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378 // <DIR_NAME, <FCN_NAME, TYPES>> |
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379 typedef std::map<std::string, dir_info::fcn_file_map_type> |
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380 private_fcn_map_type; |
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381 |
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382 typedef private_fcn_map_type::const_iterator const_private_fcn_map_iterator; |
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383 typedef private_fcn_map_type::iterator private_fcn_map_iterator; |
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384 |
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385 // <CLASS_NAME, <FCN_NAME, FILE_INFO_LIST>> |
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386 typedef std::map<std::string, fcn_map_type> method_map_type; |
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387 |
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388 typedef method_map_type::const_iterator const_method_map_iterator; |
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389 typedef method_map_type::iterator method_map_iterator; |
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390 |
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391 class package_info |
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392 { |
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393 public: |
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394 |
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395 package_info (const std::string& package_name = "") |
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396 : m_package_name (package_name), m_dir_list (), m_fcn_map (), |
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397 m_private_fcn_map (), |
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398 m_method_map () |
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399 { } |
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400 |
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401 package_info (const package_info& l) |
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402 : m_package_name (l.m_package_name), m_dir_list (l.m_dir_list), |
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403 m_private_fcn_map (l.m_private_fcn_map), m_method_map (l.m_method_map) |
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404 { } |
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405 |
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406 ~package_info (void) = default; |
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407 |
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408 package_info& operator = (const package_info& l) |
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409 { |
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410 if (&l != this) |
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411 { |
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412 m_package_name = l.m_package_name; |
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413 m_dir_list = l.m_dir_list; |
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414 m_fcn_map = l.m_fcn_map; |
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415 m_private_fcn_map = l.m_private_fcn_map; |
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416 m_method_map = l.m_method_map; |
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417 } |
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418 |
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419 return *this; |
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420 } |
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421 |
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422 void add (const dir_info& di, bool at_end, bool updating) |
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423 { |
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424 if (at_end) |
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425 m_dir_list.push_back (di.dir_name); |
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426 else |
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427 m_dir_list.push_front (di.dir_name); |
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428 |
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429 add_to_fcn_map (di, at_end, updating); |
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430 |
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431 add_to_private_fcn_map (di); |
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432 |
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433 add_to_method_map (di, at_end); |
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434 } |
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435 |
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436 void move (const dir_info& di, bool at_end); |
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437 |
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438 void remove (const dir_info& di); |
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439 |
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440 void clear (void) |
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441 { |
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442 m_dir_list.clear (); |
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443 |
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444 m_fcn_map.clear (); |
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445 |
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446 m_private_fcn_map.clear (); |
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447 |
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448 m_method_map.clear (); |
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449 } |
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450 |
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451 void display (std::ostream& out) const; |
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452 |
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453 std::string |
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454 find_fcn (const std::string& fcn, std::string& dir_name, |
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455 int type = M_FILE | OCT_FILE | MEX_FILE) const; |
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456 |
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457 std::string |
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458 find_private_fcn (const std::string& dir, const std::string& fcn, |
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459 int type = M_FILE | OCT_FILE | MEX_FILE) const; |
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460 |
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461 std::string |
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462 find_method (const std::string& class_name, const std::string& meth, |
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463 std::string& dir_name, |
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464 int type = M_FILE | OCT_FILE | MEX_FILE) const; |
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465 |
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466 std::list<std::string> methods (const std::string& class_name) const; |
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467 |
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468 void overloads (const std::string& meth, std::list<std::string>& l) const; |
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469 |
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470 string_vector fcn_names (void) const; |
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471 |
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472 private: |
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473 |
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474 void add_to_fcn_map (const dir_info& di, bool at_end, bool updating); |
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475 |
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476 void add_to_private_fcn_map (const dir_info& di); |
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477 |
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478 void add_to_method_map (const dir_info& di, bool at_end); |
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479 |
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480 void move_fcn_map (const std::string& dir, |
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481 const string_vector& fcn_files, bool at_end); |
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482 |
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483 void move_method_map (const std::string& dir, bool at_end); |
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484 |
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485 void remove_fcn_map (const std::string& dir, |
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486 const string_vector& fcn_files); |
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487 |
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488 void remove_private_fcn_map (const std::string& dir); |
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489 |
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490 void remove_method_map (const std::string& dir); |
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491 |
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492 bool check_file_type (std::string& fname, int type, int possible_types, |
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493 const std::string& fcn, const char *who) const; |
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494 |
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495 void print_types (std::ostream& os, int types) const; |
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496 |
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497 void print_fcn_list (std::ostream& os, |
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498 const dir_info::fcn_file_map_type& lst) const; |
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499 |
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500 std::string m_package_name; |
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501 |
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502 std::list<std::string> m_dir_list; |
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503 |
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504 fcn_map_type m_fcn_map; |
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505 |
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506 private_fcn_map_type m_private_fcn_map; |
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507 |
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508 method_map_type m_method_map; |
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509 }; |
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510 |
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511 // <PACKAGE_NAME, PACKAGE_INFO> |
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512 typedef std::map<std::string, package_info> package_map_type; |
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513 |
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514 typedef package_map_type::const_iterator const_package_map_iterator; |
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515 typedef package_map_type::iterator package_map_iterator; |
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516 |
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517 std::function<void (const std::string&)> add_hook; |
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518 |
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519 std::function<void (const std::string&)> remove_hook; |
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520 |
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521 void execute_pkg_add_or_del (const std::string& dir, |
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522 const std::string& script_file); |
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523 |
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524 const_dir_info_list_iterator find_dir_info (const std::string& dir) const; |
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525 dir_info_list_iterator find_dir_info (const std::string& dir); |
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526 |
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527 bool contains (const std::string& dir) const; |
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528 |
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529 void move (dir_info_list_iterator i, bool at_end); |
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530 |
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531 void move (const dir_info& di, bool at_end, const std::string& pname = ""); |
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532 |
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533 void remove (const dir_info& di, const std::string& pname = ""); |
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534 |
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535 void add (const std::string& dir, bool at_end, bool warn); |
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536 |
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537 void add (const dir_info& di, bool at_end, const std::string& pname = "", |
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538 bool updating = false) const; |
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539 |
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540 bool is_package (const std::string& name) const; |
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541 |
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542 package_info& get_package (const std::string& name) const |
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543 { |
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544 if (! name.empty () && is_package (name)) |
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545 { |
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546 package_map_iterator l = m_package_map.find (name); |
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547 |
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548 if (l == m_package_map.end ()) |
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549 l = m_package_map.insert (m_package_map.end (), |
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550 package_map_type::value_type (name, package_info (name))); |
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551 |
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552 return l->second; |
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553 } |
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554 |
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555 return m_top_level_package; |
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556 } |
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557 |
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558 string_vector get_file_list (const dir_info::fcn_file_map_type& lst) const; |
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559 |
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560 friend dir_info::fcn_file_map_type get_fcn_files (const std::string& d); |
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561 |
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562 //-------- |
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563 |
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564 static std::string s_sys_path; |
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565 |
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566 static abs_dir_cache_type s_abs_dir_cache; |
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567 |
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568 interpreter& m_interpreter; |
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569 |
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570 mutable package_map_type m_package_map; |
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571 |
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572 mutable package_info m_top_level_package; |
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573 |
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574 mutable dir_info_list_type m_dir_info_list; |
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575 |
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576 mutable std::set<std::string> m_init_dirs; |
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577 |
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578 std::string m_command_line_path; |
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579 |
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580 }; |
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581 |
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582 extern std::string |
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583 genpath (const std::string& dir, const string_vector& skip = "private"); |
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584 |
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585 OCTAVE_NAMESPACE_END |
5832 | 586 |
587 #endif |