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annotate libinterp/corefcn/input.h @ 33617:ec2635a02328 bytecode-interpreter tip

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maint: Merge default to bytecode-interpreter.
author Markus Mützel <markus.muetzel@gmx.de>
date Tue, 21 May 2024 18:29:03 +0200
parents 7cf694a5fde8
children
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2024 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 ////////////////////////////////////////////////////////////////////////
1
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25
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26 // Use the GNU readline library for command line editing and history.
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27
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28 #if ! defined (octave_input_h)
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29 #define octave_input_h 1
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30
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31 #include "octave-config.h"
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32
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33 #include <cstdio>
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34
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35 #include <memory>
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36 #include <string>
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37 #include <unordered_map>
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38
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39 #include "hook-fcn.h"
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40 #include "oct-time.h"
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41 #include "ovl.h"
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42 #include "pager.h"
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43
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44 // TRUE after a call to completion_matches.
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45 extern OCTINTERP_API bool octave_completion_matches_called;
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46
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47 // TRUE if the plotting system has requested a call to drawnow at
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48 // the next user prompt.
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49 extern OCTINTERP_API bool Vdrawnow_requested;
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50
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51 extern OCTINTERP_API octave::sys::time Vlast_prompt_time;
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52
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53 class octave_value;
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54
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55 OCTAVE_BEGIN_NAMESPACE(octave)
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56
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57 class interpreter;
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58
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59 class input_system
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60 {
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61 public:
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62
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63 input_system (interpreter& interp);
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64
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65 void initialize (bool line_editing);
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66
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67 octave_value PS1 (const octave_value_list& args, int nargout);
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68
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69 std::string PS1 () const { return m_PS1; }
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70
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71 std::string PS1 (const std::string& s)
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72 {
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73 std::string val = m_PS1;
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74 m_PS1 = s;
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75 return val;
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76 }
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77
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78 void set_PS1 (const std::string& s) { m_PS1 = s; }
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79
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80 octave_value PS2 (const octave_value_list& args, int nargout);
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81
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82 std::string PS2 () const { return m_PS2; }
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83
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84 std::string PS2 (const std::string& s)
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85 {
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86 std::string val = m_PS2;
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87 m_PS2 = s;
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88 return val;
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89 }
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90
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91 void set_PS2 (const std::string& s) { m_PS2 = s; }
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92
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93 std::string last_debugging_command () const
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94 {
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95 return m_last_debugging_command;
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96 }
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97
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98 std::string last_debugging_command (const std::string& s)
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99 {
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100 std::string val = m_last_debugging_command;
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101 m_last_debugging_command = s;
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102 return val;
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103 }
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104
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105 octave_value
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106 completion_append_char (const octave_value_list& args, int nargout);
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107
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108 char completion_append_char () const
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109 {
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110 return m_completion_append_char;
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111 }
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112
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113 char completion_append_char (char c)
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114 {
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115 char val = m_completion_append_char;
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116 m_completion_append_char = c;
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117 return val;
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118 }
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119
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120 void set_completion_append_char (char c) { m_completion_append_char = c; }
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121
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122 octave_value gud_mode (const octave_value_list& args, int nargout);
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123
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124 bool gud_mode () const { return m_gud_mode; }
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125
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126 bool gud_mode (bool flag)
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127 {
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128 bool val = m_gud_mode;
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129 m_gud_mode = flag;
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130 return val;
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131 }
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132
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133 void set_gud_mode (bool flag) { m_gud_mode = flag; }
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134
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135 octave_value mfile_encoding (const octave_value_list& args, int nargout);
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136
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137 std::string mfile_encoding () const { return m_mfile_encoding; }
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138
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139 std::string mfile_encoding (const std::string& s)
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140 {
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141 std::string val = m_mfile_encoding;
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142 m_mfile_encoding = s;
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143 return val;
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144 }
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145
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146 void set_mfile_encoding (const std::string& s) { m_mfile_encoding = s; }
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147
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148 std::string dir_encoding (const std::string& dir);
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149
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150 void set_dir_encoding (const std::string& dir, std::string& enc);
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151
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152 octave_value
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153 auto_repeat_debug_command (const octave_value_list& args, int nargout);
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154
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155 bool auto_repeat_debug_command () const
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156 {
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157 return m_auto_repeat_debug_command;
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158 }
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159
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160 bool auto_repeat_debug_command (bool val)
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161 {
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162 bool old_val = m_auto_repeat_debug_command;
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163 m_auto_repeat_debug_command = val;
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164 return old_val;
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165 }
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166
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167 bool yes_or_no (const std::string& prompt);
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168
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169 std::string interactive_input (const std::string& s, bool& eof);
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170
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171 octave_value_list
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172 get_user_input (const octave_value_list& args, int nargout);
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173
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174 bool have_input_event_hooks () const;
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175
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176 void add_input_event_hook (const hook_function& hook_fcn);
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177
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178 bool remove_input_event_hook (const std::string& hook_fcn_id);
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179
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180 void clear_input_event_hooks ();
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181
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182 void run_input_event_hooks ();
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183
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184 private:
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185
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186 interpreter& m_interpreter;
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187
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188 // Primary prompt string.
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189 std::string m_PS1;
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190
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191 // Secondary prompt string.
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192 std::string m_PS2;
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193
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194 // Character to append after successful command-line completion
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195 // attempts.
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196 char m_completion_append_char;
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197
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198 // TRUE if we are running in the Emacs GUD mode.
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199 bool m_gud_mode;
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200
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201 // Codepage which is used to read .m files
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202 std::string m_mfile_encoding;
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203
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204 // map of directories -> used mfile encoding
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205 std::unordered_map<std::string, std::string> m_dir_encoding;
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206
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207 // TRUE means repeat last debug command if the user just types RET.
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208 bool m_auto_repeat_debug_command;
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209
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210 // If we are in debugging mode, this is the last command entered,
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211 // so that we can repeat the previous command if the user just
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212 // types RET.
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213 std::string m_last_debugging_command;
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214
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215 hook_function_list m_input_event_hook_functions;
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216
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217 bool m_initialized;
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218
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219 std::string gnu_readline (const std::string& s, bool& eof) const;
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220 };
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221
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222 class base_reader
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223 {
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224 public:
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225
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226 friend class input_reader;
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227
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228 base_reader (interpreter& interp)
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229 : m_interpreter (interp)
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230 { }
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231
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232 OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (base_reader)
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233
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234 virtual ~base_reader () = default;
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235
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236 virtual std::string get_input (const std::string& prompt, bool& eof) = 0;
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237
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238 virtual std::string input_source () const { return s_in_src; }
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239
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240 std::string octave_gets (const std::string& prompt, bool& eof);
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241
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242 virtual bool input_from_terminal () const { return false; }
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243
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244 virtual bool input_from_file () const { return false; }
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245
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246 virtual bool input_from_eval_string () const { return false; }
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247
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248 protected:
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249
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250 interpreter& m_interpreter;
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251
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252 private:
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253
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254 static const std::string s_in_src;
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255 };
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256
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257 class input_reader
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258 {
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259 public:
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260
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261 input_reader () = delete;
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262
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263 input_reader (interpreter& interp);
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264
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265 input_reader (interpreter& interp, FILE *file);
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266
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267 input_reader (interpreter& interp, FILE *file, const std::string& enc);
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268
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269 input_reader (interpreter& interp, const std::string& str);
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270
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271 OCTAVE_DEFAULT_COPY_DELETE (input_reader)
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272
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273 std::string get_input (const std::string& prompt, bool& eof)
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274 {
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275 return m_rep->get_input (prompt, eof);
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276 }
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277
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278 std::string input_source () const
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279 {
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280 return m_rep->input_source ();
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281 }
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282
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283 bool input_from_terminal () const
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284 {
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285 return m_rep->input_from_terminal ();
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286 }
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287
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288 bool input_from_file () const
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289 {
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290 return m_rep->input_from_file ();
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291 }
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292
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293 bool input_from_eval_string () const
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294 {
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295 return m_rep->input_from_eval_string ();
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296 }
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297
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298 private:
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299
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300 std::shared_ptr<base_reader> m_rep;
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301 };
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302
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303 OCTAVE_END_NAMESPACE(octave)
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304
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
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305 #endif