Mercurial > octave
annotate libinterp/corefcn/interpreter.h @ 26376:00f796120a6d stable
maint: Update copyright dates in all source files.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 02 Jan 2019 16:32:43 -0500 |
parents | 8a15f3bace49 |
children | fff643eb3514 44a019d01aa5 |
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1 /* |
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2 |
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3 Copyright (C) 2002-2019 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 |
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9 the Free Software Foundation, either version 3 of the License, or |
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10 (at your option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License 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, see |
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19 <https://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #if ! defined (octave_interpreter_h) |
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24 #define octave_interpreter_h 1 |
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25 |
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26 #include "octave-config.h" |
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27 |
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28 #include <string> |
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29 |
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30 #include "child-list.h" |
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31 #include "quit.h" |
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32 #include "str-vec.h" |
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33 |
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34 #include "dynamic-ld.h" |
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35 #include "environment.h" |
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36 #include "gtk-manager.h" |
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37 #include "help.h" |
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38 #include "input.h" |
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39 #include "load-path.h" |
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40 #include "load-save.h" |
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41 #include "oct-hist.h" |
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42 #include "oct-stream.h" |
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43 #include "ov-classdef.h" |
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44 #include "ov-typeinfo.h" |
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45 #include "pager.h" |
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46 #include "pt-eval.h" |
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47 #include "settings.h" |
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48 #include "symtab.h" |
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49 #include "url-handle-manager.h" |
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50 |
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51 extern OCTINTERP_API bool quit_allowed; |
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52 |
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53 // TRUE means we are ready to interpret commands, but not everything |
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54 // is ready for interactive use. |
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55 extern OCTINTERP_API bool octave_interpreter_ready; |
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56 |
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57 // TRUE means we've processed all the init code and we are good to go. |
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58 extern OCTINTERP_API bool octave_initialized; |
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59 |
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60 namespace octave |
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61 { |
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62 class profiler; |
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63 class call_stack; |
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64 class child_list; |
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65 |
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66 // The application object contains a pointer to the current |
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67 // interpreter and the interpreter contains a pointer back to the |
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68 // application context so we need a forward declaration for one (or |
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69 // both) of them... |
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70 |
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71 class application; |
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72 |
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73 class OCTINTERP_API interpreter |
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74 { |
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75 public: |
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76 |
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77 // Create an interpreter object and perform basic initialization. |
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78 |
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79 interpreter (application *app_context = nullptr); |
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80 |
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81 // No copying, at least not yet... |
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82 |
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83 interpreter (const interpreter&) = delete; |
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84 |
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85 interpreter& operator = (const interpreter&) = delete; |
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86 |
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87 // Clean up the interpreter object. |
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88 |
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89 ~interpreter (void); |
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90 |
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91 void intern_nargin (octave_idx_type nargs); |
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92 |
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93 // If creating an embedded interpreter, you may inhibit reading |
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94 // the command history file by calling initialize_history with |
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95 // read_history_file = false prior to calling initialize. |
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96 |
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97 void initialize_history (bool read_history_file = false); |
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98 |
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99 // If creating an embedded interpreter, you may inhibit setting |
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100 // the default compiled-in path by calling intialize_load_path |
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101 // with set_initial_path = false prior calling initialize. After |
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102 // that, you can add directories to the load path to set up a |
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103 // custom path. |
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104 |
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105 void initialize_load_path (bool set_initial_path = true); |
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106 |
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107 // Load command line history, set the load path. |
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108 |
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109 void initialize (void); |
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110 |
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111 // Initialize the interpreter (if not already done by an explicit |
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112 // call to intialize), execute startup files, --eval option code, |
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113 // script files, and/or interactive commands. |
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114 |
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115 int execute (void); |
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116 |
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117 bool interactive (void) const |
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118 { |
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119 return m_interactive; |
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120 } |
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121 |
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122 void interactive (bool arg) |
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123 { |
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124 m_interactive = arg; |
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125 } |
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126 |
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127 void read_site_files (bool flag) |
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128 { |
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129 m_read_site_files = flag; |
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130 } |
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131 |
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132 void read_init_files (bool flag) |
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133 { |
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134 m_read_init_files = flag; |
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135 } |
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136 |
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137 void verbose (bool flag) |
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138 { |
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139 m_verbose = flag; |
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140 } |
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141 |
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142 void inhibit_startup_message (bool flag) |
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143 { |
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144 m_inhibit_startup_message = flag; |
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145 } |
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146 |
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147 bool initialized (void) const |
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148 { |
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149 return m_initialized; |
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150 } |
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151 |
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152 environment& get_environment (void) |
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153 { |
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154 return m_environment; |
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155 } |
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156 |
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157 settings& get_settings (void) |
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158 { |
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159 return m_settings; |
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160 } |
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161 |
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162 help_system& get_help_system (void) |
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163 { |
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164 return m_help_system; |
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165 } |
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166 |
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167 input_system& get_input_system (void) |
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168 { |
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169 return m_input_system; |
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170 } |
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171 |
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172 output_system& get_output_system (void) |
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173 { |
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174 return m_output_system; |
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175 } |
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176 |
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177 history_system& get_history_system (void) |
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178 { |
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179 return m_history_system; |
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180 } |
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181 |
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182 dynamic_loader& get_dynamic_loader (void) |
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183 { |
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184 return m_dynamic_loader; |
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185 } |
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186 |
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187 load_path& get_load_path (void) |
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188 { |
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189 return m_load_path; |
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190 } |
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191 |
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192 load_save_system& get_load_save_system (void) |
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193 { |
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194 return m_load_save_system; |
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195 } |
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196 |
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197 symbol_table& get_symbol_table (void) |
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198 { |
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199 return m_symbol_table; |
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200 } |
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201 |
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202 type_info& get_type_info (void) |
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203 { |
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204 return m_type_info; |
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205 } |
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206 |
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207 symbol_scope get_current_scope (void); |
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208 symbol_scope require_current_scope (const std::string& who); |
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209 |
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|
210 call_stack& get_call_stack (void); |
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211 |
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212 profiler& get_profiler (void); |
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213 |
23532
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214 tree_evaluator& get_evaluator (void); |
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215 |
23738
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216 stream_list& get_stream_list (void); |
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217 |
24734
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218 child_list& get_child_list (void) |
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219 { |
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220 return m_child_list; |
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221 } |
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222 |
23742
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|
223 url_handle_manager& get_url_handle_manager (void); |
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224 |
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|
225 cdef_manager& get_cdef_manager (void) |
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226 { |
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227 return m_cdef_manager; |
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228 } |
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229 |
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230 gtk_manager& get_gtk_manager (void) |
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231 { |
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232 return m_gtk_manager; |
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233 } |
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234 |
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235 void mlock (void); |
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236 |
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237 void munlock (const std::string& nm); |
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238 |
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|
239 bool mislocked (const std::string& nm); |
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240 |
26113
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241 octave_value_list eval_string (const std::string& eval_str, bool silent, |
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242 int& parse_status, int nargout); |
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243 |
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244 octave_value eval_string (const std::string& eval_str, bool silent, |
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245 int& parse_status); |
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246 |
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247 octave_value_list eval_string (const octave_value& arg, bool silent, |
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248 int& parse_status, int nargout); |
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249 |
23110
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250 static void recover_from_exception (void); |
af48d8be62b3
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251 |
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252 static void add_atexit_function (const std::string& fname); |
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253 |
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254 static bool remove_atexit_function (const std::string& fname); |
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255 |
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256 static interpreter * the_interpreter (void) { return instance; } |
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257 |
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258 private: |
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259 |
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260 // The interpreter instance; Currently it is only possible to |
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261 // have one, so OCTAVE_THREAD_LOCAL will normally be defined to be |
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262 // empty. Eventually we would like to allow multiple interpreters |
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263 // to be active at once, but they will still be limited to one per |
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264 // thread. When that is possible, OCTAVE_THREAD_LOCAL can be |
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265 // replaced by the C++ thread_local keyword. For now, use a macro |
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266 // to allow experimenting with thread_local storage. |
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267 |
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268 OCTAVE_THREAD_LOCAL static interpreter *instance; |
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269 |
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270 static std::list<std::string> atexit_functions; |
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271 |
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272 void display_startup_message (void) const; |
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273 |
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274 int execute_startup_files (void) const; |
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275 |
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276 int execute_eval_option_code (void); |
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277 |
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278 int execute_command_line_file (void); |
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279 |
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280 int main_loop (void); |
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281 |
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282 void cleanup (void); |
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283 |
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284 application *m_app_context; |
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285 |
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286 environment m_environment; |
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287 |
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288 settings m_settings; |
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289 |
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290 help_system m_help_system; |
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291 |
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292 input_system m_input_system; |
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293 |
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294 output_system m_output_system; |
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295 |
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296 history_system m_history_system; |
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297 |
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298 dynamic_loader m_dynamic_loader; |
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299 |
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300 load_path m_load_path; |
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301 |
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302 load_save_system m_load_save_system; |
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303 |
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304 type_info m_type_info; |
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305 |
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306 symbol_table m_symbol_table; |
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307 |
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308 tree_evaluator m_evaluator; |
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309 |
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310 stream_list m_stream_list; |
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311 |
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312 child_list m_child_list; |
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313 |
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314 url_handle_manager m_url_handle_manager; |
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315 |
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316 cdef_manager m_cdef_manager; |
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317 |
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318 gtk_manager m_gtk_manager; |
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319 |
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320 // TRUE means this is an interactive interpreter (forced or not). |
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321 bool m_interactive; |
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322 |
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323 bool m_read_site_files; |
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324 |
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325 bool m_read_init_files; |
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326 |
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327 bool m_verbose; |
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328 |
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329 bool m_inhibit_startup_message; |
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330 |
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331 bool m_load_path_initialized; |
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332 |
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333 bool m_history_initialized; |
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334 |
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335 bool m_initialized; |
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336 |
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337 void maximum_braindamage (void); |
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338 |
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339 void execute_pkg_add (const std::string& dir); |
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340 }; |
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341 } |
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342 |
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343 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
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344 |
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345 OCTAVE_DEPRECATED (4.4, "use 'octave::interpreter::recover_from_exception' instead") |
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346 static inline void |
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347 recover_from_exception (void) |
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348 { |
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349 octave::interpreter::recover_from_exception (); |
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350 } |
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351 |
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352 OCTAVE_DEPRECATED (4.4, "use 'octave::interpreter::add_atexit_function' instead") |
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353 static inline void |
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354 add_atexit_function (const std::string& fname) |
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355 { |
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356 octave::interpreter::add_atexit_function (fname); |
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357 } |
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358 |
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359 OCTAVE_DEPRECATED (4.4, "use 'octave::interpreter::remove_atexit_function' instead") |
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360 static inline bool |
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361 remove_atexit_function (const std::string& fname) |
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362 { |
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363 return octave::interpreter::remove_atexit_function (fname); |
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364 } |
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365 |
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366 #endif |
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367 |
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368 #endif |