Mercurial > octave
annotate libinterp/corefcn/input.cc @ 25054:6652d3823428 stable
maint: Update copyright dates in all source files.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 30 Mar 2018 09:19:05 -0400 |
parents | 6e4121c39957 |
children | 82445187633e cb3ead3cf859 |
rev | line source |
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1 | 1 /* |
2 | |
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3 Copyright (C) 1993-2018 John W. Eaton |
1 | 4 |
5 This file is part of Octave. | |
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. |
1 | 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. |
1 | 16 |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
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19 <https://www.gnu.org/licenses/>. |
1 | 20 |
21 */ | |
22 | |
2939 | 23 // Get command input interactively or from files. |
1 | 24 |
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25 #if defined (HAVE_CONFIG_H) |
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26 # include "config.h" |
1 | 27 #endif |
28 | |
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29 #include <cstdio> |
1343 | 30 #include <cstdlib> |
31 #include <cstring> | |
32 #include <cassert> | |
33 | |
3503 | 34 #include <iostream> |
5765 | 35 #include <sstream> |
1728 | 36 #include <string> |
37 | |
2927 | 38 #include "cmd-edit.h" |
3189 | 39 #include "file-ops.h" |
4153 | 40 #include "quit.h" |
1755 | 41 #include "str-vec.h" |
42 | |
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43 #include "bp-table.h" |
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44 #include "builtin-defun-decls.h" |
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45 #include "call-stack.h" |
1352 | 46 #include "defun.h" |
47 #include "dirfns.h" | |
1 | 48 #include "error.h" |
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49 #include "errwarn.h" |
3016 | 50 #include "help.h" |
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51 #include "hook-fcn.h" |
1 | 52 #include "input.h" |
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53 #include "interpreter-private.h" |
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54 #include "interpreter.h" |
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55 #include "lex.h" |
5832 | 56 #include "load-path.h" |
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57 #include "octave.h" |
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58 #include "octave-link.h" |
1352 | 59 #include "oct-map.h" |
1742 | 60 #include "oct-hist.h" |
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61 #include "interpreter.h" |
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62 #include "octave-link.h" |
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63 #include "ovl.h" |
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64 #include "ov-fcn-handle.h" |
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65 #include "ov-usr-fcn.h" |
1 | 66 #include "pager.h" |
529 | 67 #include "parse.h" |
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68 #include "pt-eval.h" |
3805 | 69 #include "pt-stmt.h" |
1352 | 70 #include "sighandlers.h" |
1114 | 71 #include "sysdep.h" |
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72 #include "interpreter.h" |
3098 | 73 #include "unwind-prot.h" |
1352 | 74 #include "utils.h" |
75 #include "variables.h" | |
529 | 76 |
2181 | 77 // Primary prompt string. |
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78 static std::string VPS1; |
2181 | 79 |
80 // Secondary prompt string. | |
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81 static std::string VPS2; |
2181 | 82 |
3165 | 83 // The time we last printed a prompt. |
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84 octave::sys::time Vlast_prompt_time = 0.0; |
3165 | 85 |
2181 | 86 // Character to append after successful command-line completion attempts. |
5794 | 87 static char Vcompletion_append_char = ' '; |
2181 | 88 |
3804 | 89 // TRUE after a call to completion_matches. |
2299 | 90 bool octave_completion_matches_called = false; |
91 | |
6257 | 92 // TRUE if the plotting system has requested a call to drawnow at |
93 // the next user prompt. | |
7409 | 94 bool Vdrawnow_requested = false; |
6257 | 95 |
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96 // TRUE if we are in debugging mode. |
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97 bool Vdebugging = false; |
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98 |
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99 // TRUE if we are recording line numbers in a source file. |
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100 // Always true except when debugging and taking input directly from |
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101 // the terminal. |
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102 bool Vtrack_line_num = true; |
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103 |
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104 // If we are in debugging mode, this is the last command entered, so |
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105 // that we can repeat the previous command if the user just types RET. |
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106 static std::string last_debugging_command = "\n"; |
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107 |
7294 | 108 // TRUE if we are running in the Emacs GUD mode. |
109 static bool Vgud_mode = false; | |
110 | |
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111 static hook_function_list input_event_hook_functions; |
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112 |
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113 // For octave_quit. |
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114 void |
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115 remove_input_event_hook_functions (void) |
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116 { |
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117 input_event_hook_functions.clear (); |
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118 } |
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119 |
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120 void |
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121 set_default_prompts (void) |
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122 { |
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123 // Use literal "octave" instead of "\\s" to avoid setting the prompt |
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124 // to "octave.exe" or "octave-gui", etc. |
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125 |
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126 VPS1 = R"(octave:\#> )"; |
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127 VPS2 = "> "; |
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128 std::string VPS4 = "+ "; |
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129 |
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130 octave_link::set_default_prompts (VPS1, VPS2, VPS4); |
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131 } |
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132 |
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133 static std::string |
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134 gnu_readline (const std::string& s, bool& eof) |
1822 | 135 { |
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136 octave_quit (); |
5142 | 137 |
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138 eof = false; |
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139 |
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140 std::string retval = octave::command_editor::readline (s, eof); |
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141 |
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142 if (! eof && retval.empty ()) |
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143 retval = "\n"; |
1822 | 144 |
145 return retval; | |
146 } | |
581 | 147 |
6257 | 148 static inline std::string |
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149 interactive_input (const std::string& s, bool& eof) |
6257 | 150 { |
151 Vlast_prompt_time.stamp (); | |
152 | |
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153 if (Vdrawnow_requested && octave::application::interactive ()) |
6257 | 154 { |
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155 bool eval_error = false; |
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156 |
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157 try |
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158 { |
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159 Fdrawnow (); |
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160 } |
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161 catch (const octave::execution_exception& e) |
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162 { |
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163 eval_error = true; |
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164 |
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165 std::string stack_trace = e.info (); |
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166 |
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167 if (! stack_trace.empty ()) |
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168 std::cerr << stack_trace; |
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169 |
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170 if (octave::application::interactive ()) |
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171 octave::interpreter::recover_from_exception (); |
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172 } |
6257 | 173 |
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174 octave::flush_stdout (); |
6367 | 175 |
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176 // We set Vdrawnow_requested to false even if there is an error in |
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177 // drawnow so that the error doesn't reappear at every prompt. |
6305 | 178 |
6257 | 179 Vdrawnow_requested = false; |
6305 | 180 |
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181 if (eval_error) |
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182 return "\n"; |
6257 | 183 } |
184 | |
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185 return gnu_readline (s, eof); |
6257 | 186 } |
187 | |
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188 namespace octave |
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190 std::string base_reader::octave_gets (bool& eof) |
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191 { |
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192 octave_quit (); |
5142 | 193 |
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194 eof = false; |
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195 |
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196 std::string retval; |
1 | 197 |
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198 // Process pre input event hook function prior to flushing output and |
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199 // printing the prompt. |
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200 |
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201 if (application::interactive ()) |
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202 { |
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203 if (! Vdebugging) |
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204 octave_link::exit_debugger_event (); |
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205 |
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206 octave_link::pre_input_event (); |
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207 |
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208 octave_link::set_workspace (); |
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209 } |
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210 |
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211 bool history_skip_auto_repeated_debugging_command = false; |
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212 |
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213 std::string ps = (m_pflag > 0) ? VPS1 : VPS2; |
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214 |
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215 std::string prompt = command_editor::decode_prompt_string (ps); |
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216 |
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217 pipe_handler_error_count = 0; |
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218 |
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219 flush_stdout (); |
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221 pager_stream::reset (); |
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222 diary_stream::reset (); |
2618 | 223 |
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224 octave_diary << prompt; |
1 | 225 |
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226 retval = interactive_input (prompt, eof); |
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228 // There is no need to update the load_path cache if there is no |
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229 // user input. |
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230 if (retval != "\n" |
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231 && retval.find_first_not_of (" \t\n\r") != std::string::npos) |
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232 { |
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233 load_path& lp = __get_load_path__ ("base_reader::octave_gets"); |
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234 |
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235 lp.update (); |
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236 |
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237 if (Vdebugging) |
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238 last_debugging_command = retval; |
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239 else |
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240 last_debugging_command = "\n"; |
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241 } |
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242 else if (Vdebugging) |
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243 { |
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244 retval = last_debugging_command; |
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245 history_skip_auto_repeated_debugging_command = true; |
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246 } |
1 | 247 |
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248 if (retval != "\n") |
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249 { |
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250 if (! history_skip_auto_repeated_debugging_command) |
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251 { |
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252 if (command_history::add (retval)) |
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253 octave_link::append_history (retval); |
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254 } |
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256 octave_diary << retval; |
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258 if (retval.back () != '\n') |
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259 octave_diary << "\n"; |
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260 } |
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261 else |
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262 octave_diary << "\n"; |
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264 // Process post input event hook function after the internal history |
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265 // list has been updated. |
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267 if (application::interactive ()) |
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268 octave_link::post_input_event (); |
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269 |
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270 return retval; |
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271 } |
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273 bool base_reader::reading_fcn_file (void) const |
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274 { |
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275 return m_lexer ? m_lexer->m_reading_fcn_file : false; |
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276 } |
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277 |
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278 bool base_reader::reading_classdef_file (void) const |
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279 { |
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280 return m_lexer ? m_lexer->m_reading_classdef_file : false; |
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281 } |
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282 |
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283 bool base_reader::reading_script_file (void) const |
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284 { |
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285 return m_lexer ? m_lexer->m_reading_script_file : false; |
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286 } |
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287 |
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288 class |
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289 terminal_reader : public base_reader |
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290 { |
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291 public: |
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292 |
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293 terminal_reader (base_lexer *lxr = nullptr) |
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294 : base_reader (lxr) |
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295 { } |
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296 |
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297 std::string get_input (bool& eof); |
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298 |
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299 std::string input_source (void) const { return s_in_src; } |
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300 |
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301 bool input_from_terminal (void) const { return true; } |
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302 |
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303 private: |
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304 |
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305 static const std::string s_in_src; |
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306 }; |
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307 |
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308 class |
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309 file_reader : public base_reader |
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310 { |
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311 public: |
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312 |
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313 file_reader (FILE *f_arg, base_lexer *lxr = nullptr) |
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314 : base_reader (lxr), m_file (f_arg) { } |
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315 |
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316 std::string get_input (bool& eof); |
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317 |
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318 std::string input_source (void) const { return s_in_src; } |
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319 |
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320 bool input_from_file (void) const { return true; } |
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321 |
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322 private: |
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323 |
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324 FILE *m_file; |
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325 |
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326 static const std::string s_in_src; |
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327 }; |
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328 |
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329 class |
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330 eval_string_reader : public base_reader |
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331 { |
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332 public: |
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333 |
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334 eval_string_reader (const std::string& str, base_lexer *lxr = nullptr) |
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335 : base_reader (lxr), m_eval_string (str) |
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336 { } |
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337 |
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338 std::string get_input (bool& eof); |
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339 |
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340 std::string input_source (void) const { return s_in_src; } |
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341 |
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342 bool input_from_eval_string (void) const { return true; } |
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343 |
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344 private: |
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345 |
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346 std::string m_eval_string; |
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347 |
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348 static const std::string s_in_src; |
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349 }; |
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350 |
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351 input_reader::input_reader (base_lexer *lxr) |
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352 : m_rep (new terminal_reader (lxr)) |
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353 { } |
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354 |
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355 input_reader::input_reader (FILE *file, base_lexer *lxr) |
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356 : m_rep (new file_reader (file, lxr)) |
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357 { } |
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358 |
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359 input_reader::input_reader (const std::string& str, base_lexer *lxr) |
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360 : m_rep (new eval_string_reader (str, lxr)) |
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361 { } |
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362 } |
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363 |
581 | 364 // Fix things up so that input can come from the standard input. This |
365 // may need to become much more complicated, which is why it's in a | |
366 // separate function. | |
367 | |
1 | 368 FILE * |
369 get_input_from_stdin (void) | |
370 { | |
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371 octave::command_editor::set_input_stream (stdin); |
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372 return octave::command_editor::get_input_stream (); |
1 | 373 } |
374 | |
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375 // FIXME: make this generate filenames when appropriate. |
2921 | 376 |
2247 | 377 static string_vector |
3523 | 378 generate_possible_completions (const std::string& text, std::string& prefix, |
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379 std::string& hint, bool& deemed_struct) |
1280 | 380 { |
2247 | 381 string_vector names; |
1280 | 382 |
2921 | 383 prefix = ""; |
1280 | 384 |
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385 char prev_char = octave::command_editor::get_prev_char (text.length ()); |
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386 deemed_struct = looks_like_struct (text, prev_char); |
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387 |
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388 if (deemed_struct) |
1430 | 389 names = generate_struct_completions (text, prefix, hint); |
390 else | |
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391 names = octave::make_name_list (); |
1280 | 392 |
2944 | 393 // Sort and remove duplicates. |
2348 | 394 |
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395 names.sort (true); |
2348 | 396 |
1280 | 397 return names; |
398 } | |
399 | |
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400 static bool |
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401 is_completing_dirfns (void) |
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402 { |
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403 static std::string dirfns_commands[] = {"cd", "ls"}; |
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404 static const size_t dirfns_commands_length = 2; |
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405 |
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406 bool retval = false; |
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407 |
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408 std::string line = octave::command_editor::get_line_buffer (); |
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409 |
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410 for (size_t i = 0; i < dirfns_commands_length; i++) |
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411 { |
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412 int index = line.find (dirfns_commands[i] + ' '); |
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413 |
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414 if (index == 0) |
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415 { |
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416 retval = true; |
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417 break; |
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418 } |
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419 } |
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420 |
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421 return retval; |
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422 } |
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423 |
3536 | 424 static std::string |
3523 | 425 generate_completion (const std::string& text, int state) |
1280 | 426 { |
3523 | 427 std::string retval; |
2944 | 428 |
3523 | 429 static std::string prefix; |
430 static std::string hint; | |
1280 | 431 |
2921 | 432 static size_t hint_len = 0; |
1280 | 433 |
1 | 434 static int list_index = 0; |
2921 | 435 static int name_list_len = 0; |
4604 | 436 static int name_list_total_len = 0; |
2247 | 437 static string_vector name_list; |
4604 | 438 static string_vector file_name_list; |
1 | 439 |
1280 | 440 static int matches = 0; |
1 | 441 |
442 if (state == 0) | |
443 { | |
444 list_index = 0; | |
445 | |
2921 | 446 prefix = ""; |
1280 | 447 |
2921 | 448 hint = text; |
1280 | 449 |
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450 // No reason to display symbols while completing a |
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451 // file/directory operation. |
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452 |
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453 bool deemed_struct = false; |
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454 |
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455 if (is_completing_dirfns ()) |
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456 name_list = string_vector (); |
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457 else |
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458 name_list = generate_possible_completions (text, prefix, hint, |
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459 deemed_struct); |
1280 | 460 |
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461 name_list_len = name_list.numel (); |
2921 | 462 |
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463 // If the line was something like "a{1}." then text = "." but |
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464 // we don't want to expand all the . files. |
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465 if (! deemed_struct) |
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466 { |
4604 | 467 |
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468 file_name_list = octave::command_editor::generate_filename_completions (text); |
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469 |
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470 name_list.append (file_name_list); |
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471 |
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472 } |
4604 | 473 |
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474 name_list_total_len = name_list.numel (); |
4604 | 475 |
2921 | 476 hint_len = hint.length (); |
1280 | 477 |
478 matches = 0; | |
2247 | 479 |
2921 | 480 for (int i = 0; i < name_list_len; i++) |
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481 if (hint == name_list[i].substr (0, hint_len)) |
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482 matches++; |
1 | 483 } |
484 | |
4604 | 485 if (name_list_total_len > 0 && matches > 0) |
1 | 486 { |
4604 | 487 while (list_index < name_list_total_len) |
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488 { |
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489 std::string name = name_list[list_index]; |
2247 | 490 |
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491 list_index++; |
2247 | 492 |
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493 if (hint == name.substr (0, hint_len)) |
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494 { |
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495 // Special case: array reference forces prefix="." |
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496 // in generate_struct_completions () |
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497 if (list_index <= name_list_len && ! prefix.empty ()) |
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498 retval = (prefix == "." ? "" : prefix) + '.' + name; |
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499 else |
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500 retval = name; |
1280 | 501 |
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502 char prev_char = octave::command_editor::get_prev_char |
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503 (text.length ()); |
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504 if (matches == 1 && looks_like_struct (retval, prev_char)) |
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505 { |
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506 // Don't append anything, since we don't know |
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507 // whether it should be '(' or '.'. |
4179 | 508 |
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509 octave::command_editor::set_completion_append_character ('\0'); |
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510 } |
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511 else |
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512 octave::command_editor::set_completion_append_character |
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513 (Vcompletion_append_char); |
1280 | 514 |
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515 break; |
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516 } |
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517 } |
1 | 518 } |
519 | |
2944 | 520 return retval; |
1 | 521 } |
522 | |
6979 | 523 static std::string |
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524 quoting_filename (const std::string& text, int, char quote) |
6979 | 525 { |
526 if (quote) | |
527 return text; | |
528 else | |
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529 return ("'" + text); |
6979 | 530 } |
531 | |
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532 // Try to parse a partial command line in reverse, excluding trailing TEXT. |
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533 // If it appears a variable has been indexed by () or {}, |
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534 // return that expression, |
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535 // to allow autocomplete of field names of arrays of structures. |
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536 std::string |
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537 find_indexed_expression (const std::string& text) |
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538 { |
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539 std::string line = octave::command_editor::get_line_buffer (); |
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540 |
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541 int pos = line.length () - text.length (); |
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542 int curly_count = 0; |
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543 int paren_count = 0; |
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544 |
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545 int last = --pos; |
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546 |
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547 while (pos >= 0 && (line[pos] == ')' || line[pos] == '}')) |
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548 { |
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549 if (line[pos] == ')') |
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550 paren_count++; |
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551 else if (line[pos] == '}') |
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552 curly_count++; |
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553 |
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554 while (curly_count + paren_count > 0 && --pos >= 0) |
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555 { |
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556 if (line[pos] == ')') |
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557 paren_count++; |
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558 else if (line[pos] == '(') |
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559 paren_count--; |
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560 else if (line[pos] == '}') |
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561 curly_count++; |
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562 else if (line[pos] == '{') |
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563 curly_count--; |
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564 } |
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565 |
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566 while (--pos >= 0 && line[pos] == ' ') |
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567 ; |
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568 } |
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569 |
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570 while (pos >= 0 && (isalnum (line[pos]) || line[pos] == '_')) |
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571 pos--; |
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572 |
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573 if (++pos >= 0) |
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574 return (line.substr (pos, last + 1 - pos)); |
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575 else |
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576 return std::string (); |
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577 } |
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578 |
2927 | 579 void |
580 initialize_command_input (void) | |
581 { | |
582 // If we are using readline, this allows conditional parsing of the | |
583 // .inputrc file. | |
269 | 584 |
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585 octave::command_editor::set_name ("Octave"); |
1358 | 586 |
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587 // FIXME: this needs to include a comma too, but that |
3933 | 588 // causes trouble for the new struct element completion code. |
589 | |
4272 | 590 static const char *s = "\t\n !\"\'*+-/:;<=>(){}[\\]^`~"; |
3933 | 591 |
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592 octave::command_editor::set_basic_word_break_characters (s); |
3933 | 593 |
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594 octave::command_editor::set_completer_word_break_characters (s); |
3933 | 595 |
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596 octave::command_editor::set_basic_quote_characters (R"(")"); |
2944 | 597 |
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598 octave::command_editor::set_filename_quote_characters (" \t\n\\\"'@<>=;|&()#$`?*[!:{"); |
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599 octave::command_editor::set_completer_quote_characters (R"('")"); |
6979 | 600 |
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601 octave::command_editor::set_completion_function (generate_completion); |
6979 | 602 |
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603 octave::command_editor::set_quoting_function (quoting_filename); |
269 | 604 } |
605 | |
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606 static void |
16438
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607 execute_in_debugger_handler (const std::pair<std::string, int>& arg) |
16419
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608 { |
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609 octave_link::execute_in_debugger_event (arg.first, arg.second); |
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610 } |
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611 |
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612 static void |
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613 get_debug_input (octave::interpreter& interp, const std::string& prompt) |
269 | 614 { |
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615 octave::unwind_protect frame; |
16395
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616 |
22196
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617 bool silent = octave::tree_evaluator::quiet_breakpoint_flag; |
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618 octave::tree_evaluator::quiet_breakpoint_flag = false; |
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619 |
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620 octave::call_stack& cs = interp.get_call_stack (); |
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621 |
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622 octave_user_code *caller = cs.caller_user_code (); |
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623 std::string nm; |
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624 int curr_debug_line; |
8658
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625 |
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626 if (caller) |
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627 { |
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628 nm = caller->fcn_file_name (); |
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629 |
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630 if (nm.empty ()) |
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631 nm = caller->name (); |
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632 |
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633 curr_debug_line = cs.caller_user_code_line (); |
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634 } |
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635 else |
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636 curr_debug_line = cs.current_line (); |
3180 | 637 |
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638 std::ostringstream buf; |
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639 |
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640 if (! nm.empty ()) |
3180 | 641 { |
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642 if (Vgud_mode) |
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643 { |
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644 static char ctrl_z = 'Z' & 0x1f; |
269 | 645 |
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646 buf << ctrl_z << ctrl_z << nm << ':' << curr_debug_line; |
10315
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647 } |
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648 else |
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changeset
|
649 { |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
parents:
17744
diff
changeset
|
650 // FIXME: we should come up with a clean way to detect |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10186
diff
changeset
|
651 // that we are stopped on the no-op command that marks the |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10186
diff
changeset
|
652 // end of a function or script. |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8503
diff
changeset
|
653 |
19379
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
18694
diff
changeset
|
654 if (! silent) |
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
18694
diff
changeset
|
655 { |
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
18694
diff
changeset
|
656 buf << "stopped in " << nm; |
1 | 657 |
19379
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
18694
diff
changeset
|
658 if (curr_debug_line > 0) |
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
18694
diff
changeset
|
659 buf << " at line " << curr_debug_line; |
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
18694
diff
changeset
|
660 } |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8503
diff
changeset
|
661 |
25034
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
662 octave_link::enter_debugger_event (nm, curr_debug_line); |
16395
fc491da603f6
also provide a hook for exiting debugger
John W. Eaton <jwe@octave.org>
parents:
16386
diff
changeset
|
663 |
25034
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
664 octave_link::set_workspace (); |
16468
0f143f68078d
use signal/slot for updating workspace instead of using event listener
John W. Eaton <jwe@octave.org>
parents:
16438
diff
changeset
|
665 |
25034
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
666 frame.add_fcn (execute_in_debugger_handler, |
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
667 std::pair<std::string, int> (nm, curr_debug_line)); |
16374
8b0a04cbdc9d
provide hook function for dbstop events
John W. Eaton <jwe@octave.org>
parents:
16373
diff
changeset
|
668 |
25034
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
669 if (! silent) |
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
670 { |
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
671 std::string line_buf; |
23728
b40b7243a782
new class for caching file contents for debug and echo
John W. Eaton <jwe@octave.org>
parents:
23723
diff
changeset
|
672 |
25034
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
673 if (caller) |
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
674 line_buf = caller->get_code_line (curr_debug_line); |
8658
73c4516fae10
New evaluator and debugger derived from tree-walker class
John W. Eaton <jwe@octave.org>
parents:
8503
diff
changeset
|
675 |
25034
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
676 if (! line_buf.empty ()) |
6e4121c39957
enable debugging flag and code echo for command-line functions
John W. Eaton <jwe@octave.org>
parents:
24833
diff
changeset
|
677 buf << "\n" << curr_debug_line << ": " << line_buf; |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10186
diff
changeset
|
678 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10186
diff
changeset
|
679 } |
3180 | 680 } |
681 | |
19379
c1ce43276b86
avoid printing debug location in cmd window when using GUI to step
John W. Eaton <jwe@octave.org>
parents:
18694
diff
changeset
|
682 if (silent) |
21748
176536b15d68
use namespace for command_editor and command_history classes
John W. Eaton <jwe@octave.org>
parents:
21743
diff
changeset
|
683 octave::command_editor::erase_empty_line (true); |
19595
be7ac98fab43
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19379
diff
changeset
|
684 |
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7758
diff
changeset
|
685 std::string msg = buf.str (); |
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7758
diff
changeset
|
686 |
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7758
diff
changeset
|
687 if (! msg.empty ()) |
9484
bbe033dcfe13
make dbwhere work when called at keyboard prompt
John W. Eaton <jwe@octave.org>
parents:
9483
diff
changeset
|
688 std::cerr << msg << std::endl; |
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7758
diff
changeset
|
689 |
10066
2cd940306a06
make unwind_protect frames local
Jaroslav Hajek <highegg@gmail.com>
parents:
9999
diff
changeset
|
690 frame.protect_var (VPS1); |
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7758
diff
changeset
|
691 VPS1 = prompt; |
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7758
diff
changeset
|
692 |
23111
252975fdc444
more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents:
23110
diff
changeset
|
693 // FIXME: should debugging be possible in an embedded interpreter? |
252975fdc444
more refactoring of interpreter and application classes
John W. Eaton <jwe@octave.org>
parents:
23110
diff
changeset
|
694 |
22089
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
695 octave::application *app = octave::application::app (); |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
696 |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
697 if (! app->interactive ()) |
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7758
diff
changeset
|
698 { |
22089
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
699 |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
700 frame.add_method (app, &octave::application::interactive, |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
701 app->interactive ()); |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
702 |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
703 frame.add_method (app, &octave::application::forced_interactive, |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
704 app->forced_interactive ()); |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
705 |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
706 app->interactive (true); |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
707 |
c2c668b3051b
use classes for octave application and interpreter
John W. Eaton <jwe@octave.org>
parents:
22051
diff
changeset
|
708 app->forced_interactive (true); |
12907
6e1b9f079e0f
allow debugging when input is not coming from a tty
John W. Eaton <jwe@octave.org>
parents:
12573
diff
changeset
|
709 } |
6e1b9f079e0f
allow debugging when input is not coming from a tty
John W. Eaton <jwe@octave.org>
parents:
12573
diff
changeset
|
710 |
22196
dd992fd74fce
put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents:
22171
diff
changeset
|
711 octave::parser curr_parser; |
16151 | 712 |
23728
b40b7243a782
new class for caching file contents for debug and echo
John W. Eaton <jwe@octave.org>
parents:
23723
diff
changeset
|
713 octave::tree_evaluator& tw = interp.get_evaluator (); |
23532
084245f9bd03
pass reference to evaluator to octave_function call methods
John W. Eaton <jwe@octave.org>
parents:
23438
diff
changeset
|
714 |
12907
6e1b9f079e0f
allow debugging when input is not coming from a tty
John W. Eaton <jwe@octave.org>
parents:
12573
diff
changeset
|
715 while (Vdebugging) |
6e1b9f079e0f
allow debugging when input is not coming from a tty
John W. Eaton <jwe@octave.org>
parents:
12573
diff
changeset
|
716 { |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
717 try |
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
718 { |
22164
5d4a286061c8
Track line numbers when in debug mode (bug #45764)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
22094
diff
changeset
|
719 Vtrack_line_num = false; |
5d4a286061c8
Track line numbers when in debug mode (bug #45764)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
22094
diff
changeset
|
720 |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
721 reset_error_handler (); |
12907
6e1b9f079e0f
allow debugging when input is not coming from a tty
John W. Eaton <jwe@octave.org>
parents:
12573
diff
changeset
|
722 |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
723 curr_parser.reset (); |
9999
653716f3d976
get_debug_input: force interactive input mode; don't get user input unless stdin is a tty
John W. Eaton <jwe@octave.org>
parents:
9485
diff
changeset
|
724 |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
725 int retval = curr_parser.run (); |
9999
653716f3d976
get_debug_input: force interactive input mode; don't get user input unless stdin is a tty
John W. Eaton <jwe@octave.org>
parents:
9485
diff
changeset
|
726 |
21748
176536b15d68
use namespace for command_editor and command_history classes
John W. Eaton <jwe@octave.org>
parents:
21743
diff
changeset
|
727 if (octave::command_editor::interrupt (false)) |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
728 break; |
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
729 else |
16382
389b09a914e2
allow gui to force readline to return from its idle/read loop
John W. Eaton <jwe@octave.org>
parents:
16381
diff
changeset
|
730 { |
23694
4a62da62af09
use m_ prefix for member variables in parser
John W. Eaton <jwe@octave.org>
parents:
23553
diff
changeset
|
731 if (retval == 0 && curr_parser.m_stmt_list) |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
732 { |
23694
4a62da62af09
use m_ prefix for member variables in parser
John W. Eaton <jwe@octave.org>
parents:
23553
diff
changeset
|
733 curr_parser.m_stmt_list->accept (tw); |
9999
653716f3d976
get_debug_input: force interactive input mode; don't get user input unless stdin is a tty
John W. Eaton <jwe@octave.org>
parents:
9485
diff
changeset
|
734 |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
735 if (octave_completion_matches_called) |
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
736 octave_completion_matches_called = false; |
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
737 } |
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
738 |
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
739 octave_quit (); |
16382
389b09a914e2
allow gui to force readline to return from its idle/read loop
John W. Eaton <jwe@octave.org>
parents:
16381
diff
changeset
|
740 } |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
741 } |
22327
d0562b3159c7
move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
22323
diff
changeset
|
742 catch (const octave::execution_exception& e) |
20639
31219c56874f
don't exit debugger if an error occurs (bug #46251)
John W. Eaton <jwe@octave.org>
parents:
20582
diff
changeset
|
743 { |
20739
9e8a6d6d6de9
restore stack trace for errors that occur in debug mode
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
744 std::string stack_trace = e.info (); |
9e8a6d6d6de9
restore stack trace for errors that occur in debug mode
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
745 |
9e8a6d6d6de9
restore stack trace for errors that occur in debug mode
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
746 if (! stack_trace.empty ()) |
9e8a6d6d6de9
restore stack trace for errors that occur in debug mode
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
747 std::cerr << stack_trace; |
9e8a6d6d6de9
restore stack trace for errors that occur in debug mode
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
748 |
20756
200ae1d650b7
propagate octave_execution_exception objects through try/catch blocks
John W. Eaton <jwe@octave.org>
parents:
20743
diff
changeset
|
749 // Ignore errors when in debugging mode; |
23110
af48d8be62b3
move recover_from_exception and atexit functions inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
23084
diff
changeset
|
750 octave::interpreter::recover_from_exception (); |
9999
653716f3d976
get_debug_input: force interactive input mode; don't get user input unless stdin is a tty
John W. Eaton <jwe@octave.org>
parents:
9485
diff
changeset
|
751 } |
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7758
diff
changeset
|
752 } |
529 | 753 } |
754 | |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
755 namespace octave |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
756 { |
24833
7c88cf242111
use m_ prefix for data members in more classes
John W. Eaton <jwe@octave.org>
parents:
24732
diff
changeset
|
757 const std::string base_reader::s_in_src ("invalid"); |
16195
b52d2f9294b6
use class for reading lexer input
John W. Eaton <jwe@octave.org>
parents:
16187
diff
changeset
|
758 |
24833
7c88cf242111
use m_ prefix for data members in more classes
John W. Eaton <jwe@octave.org>
parents:
24732
diff
changeset
|
759 const std::string terminal_reader::s_in_src ("terminal"); |
16195
b52d2f9294b6
use class for reading lexer input
John W. Eaton <jwe@octave.org>
parents:
16187
diff
changeset
|
760 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
761 std::string |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
762 terminal_reader::get_input (bool& eof) |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
763 { |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
764 octave_quit (); |
16195
b52d2f9294b6
use class for reading lexer input
John W. Eaton <jwe@octave.org>
parents:
16187
diff
changeset
|
765 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
766 eof = false; |
16195
b52d2f9294b6
use class for reading lexer input
John W. Eaton <jwe@octave.org>
parents:
16187
diff
changeset
|
767 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
768 return octave_gets (eof); |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
769 } |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
770 |
24833
7c88cf242111
use m_ prefix for data members in more classes
John W. Eaton <jwe@octave.org>
parents:
24732
diff
changeset
|
771 const std::string file_reader::s_in_src ("file"); |
16195
b52d2f9294b6
use class for reading lexer input
John W. Eaton <jwe@octave.org>
parents:
16187
diff
changeset
|
772 |
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773 std::string |
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774 file_reader::get_input (bool& eof) |
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775 { |
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776 octave_quit (); |
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777 |
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778 eof = false; |
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779 |
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780 return octave_fgets (m_file, eof); |
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781 } |
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782 |
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783 const std::string eval_string_reader::s_in_src ("eval_string"); |
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784 |
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785 std::string |
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786 eval_string_reader::get_input (bool& eof) |
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787 { |
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788 octave_quit (); |
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789 |
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790 eof = false; |
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791 |
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792 std::string retval; |
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793 |
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794 retval = m_eval_string; |
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795 |
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796 // Clear the eval string so that the next call will return |
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797 // an empty character string with EOF = true. |
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798 m_eval_string = ""; |
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799 |
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800 if (retval.empty ()) |
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801 eof = true; |
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802 |
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803 return retval; |
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804 } |
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805 } |
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806 |
581 | 807 // If the user simply hits return, this will produce an empty matrix. |
808 | |
2086 | 809 static octave_value_list |
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810 get_user_input (const octave_value_list& args, int nargout) |
529 | 811 { |
3100 | 812 octave_value_list retval; |
529 | 813 |
814 int read_as_string = 0; | |
815 | |
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816 if (args.length () == 2) |
529 | 817 read_as_string++; |
818 | |
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819 std::string prompt = args(0).xstring_value ("input: unrecognized argument"); |
4975 | 820 |
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821 octave::flush_stdout (); |
529 | 822 |
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823 octave::pager_stream::reset (); |
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824 octave::diary_stream::reset (); |
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825 |
4565 | 826 octave_diary << prompt; |
827 | |
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828 bool eof = false; |
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829 |
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830 std::string input_buf = interactive_input (prompt.c_str (), eof); |
529 | 831 |
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832 if (input_buf.empty ()) |
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833 error ("input: reading user-input failed!"); |
529 | 834 |
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835 size_t len = input_buf.length (); |
4565 | 836 |
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837 octave_diary << input_buf; |
4565 | 838 |
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839 if (input_buf[len - 1] != '\n') |
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840 octave_diary << "\n"; |
3772 | 841 |
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842 if (len < 1) |
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843 return read_as_string ? octave_value ("") : octave_value (Matrix ()); |
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844 |
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845 if (read_as_string) |
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846 { |
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847 // FIXME: fix gnu_readline and octave_gets instead! |
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848 if (input_buf.length () == 1 && input_buf[0] == '\n') |
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849 retval(0) = ""; |
529 | 850 else |
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851 retval(0) = input_buf; |
529 | 852 } |
853 else | |
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854 { |
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855 int parse_status = 0; |
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856 |
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857 retval = octave::eval_string (input_buf, true, parse_status, nargout); |
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858 |
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859 if (! Vdebugging && retval.empty ()) |
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860 retval(0) = Matrix (); |
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861 } |
529 | 862 |
863 return retval; | |
864 } | |
865 | |
3100 | 866 DEFUN (input, args, nargout, |
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867 doc: /* -*- texinfo -*- |
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868 @deftypefn {} {@var{ans} =} input (@var{prompt}) |
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869 @deftypefnx {} {@var{ans} =} input (@var{prompt}, "s") |
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870 Print @var{prompt} and wait for user input. |
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871 |
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872 For example, |
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873 |
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874 @example |
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875 input ("Pick a number, any number! ") |
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876 @end example |
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877 |
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878 @noindent |
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879 prints the prompt |
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880 |
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881 @example |
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882 Pick a number, any number! |
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883 @end example |
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884 |
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885 @noindent |
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886 and waits for the user to enter a value. The string entered by the user |
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887 is evaluated as an expression, so it may be a literal constant, a variable |
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888 name, or any other valid Octave code. |
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889 |
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890 The number of return arguments, their size, and their class depend on the |
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891 expression entered. |
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892 |
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893 If you are only interested in getting a literal string value, you can call |
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894 @code{input} with the character string @qcode{"s"} as the second argument. |
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895 This tells Octave to return the string entered by the user directly, without |
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896 evaluating it first. |
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897 |
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898 Because there may be output waiting to be displayed by the pager, it is a |
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899 good idea to always call @code{fflush (stdout)} before calling @code{input}. |
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900 This will ensure that all pending output is written to the screen before |
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901 your prompt. |
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902 @seealso{yes_or_no, kbhit, pause, menu, listdlg} |
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903 @end deftypefn */) |
529 | 904 { |
905 int nargin = args.length (); | |
906 | |
20801
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907 if (nargin < 1 || nargin > 2) |
5823 | 908 print_usage (); |
529 | 909 |
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910 return get_user_input (args, std::max (nargout, 1)); |
529 | 911 } |
912 | |
5640 | 913 bool |
914 octave_yes_or_no (const std::string& prompt) | |
915 { | |
916 std::string prompt_string = prompt + "(yes or no) "; | |
917 | |
918 while (1) | |
919 { | |
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920 bool eof = false; |
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921 |
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922 std::string input_buf = interactive_input (prompt_string, eof); |
5640 | 923 |
924 if (input_buf == "yes") | |
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925 return true; |
5640 | 926 else if (input_buf == "no") |
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927 return false; |
5640 | 928 else |
23795
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parents:
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diff
changeset
|
929 message (nullptr, "Please answer yes or no."); |
5640 | 930 } |
931 } | |
932 | |
933 DEFUN (yes_or_no, args, , | |
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diff
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|
934 doc: /* -*- texinfo -*- |
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935 @deftypefn {} {@var{ans} =} yes_or_no ("@var{prompt}") |
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936 Ask the user a yes-or-no question. |
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937 |
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|
938 Return logical true if the answer is yes or false if the answer is no. |
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939 |
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940 Takes one argument, @var{prompt}, which is the string to display when asking |
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|
941 the question. @var{prompt} should end in a space; @code{yes-or-no} adds the |
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942 string @samp{(yes or no) } to it. The user must confirm the answer with |
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943 @key{RET} and can edit it until it has been confirmed. |
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944 @seealso{input} |
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945 @end deftypefn */) |
5640 | 946 { |
947 int nargin = args.length (); | |
948 | |
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|
949 if (nargin > 1) |
5823 | 950 print_usage (); |
5640 | 951 |
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952 std::string prompt; |
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|
953 |
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954 if (nargin == 1) |
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955 prompt = args(0).xstring_value ("yes_or_no: PROMPT must be a string"); |
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956 |
21127
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Rik <rik@octave.org>
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957 return ovl (octave_yes_or_no (prompt)); |
5640 | 958 } |
959 | |
3707 | 960 octave_value |
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961 do_keyboard (octave::interpreter& interp, const octave_value_list& args) |
3707 | 962 { |
963 octave_value retval; | |
964 | |
965 int nargin = args.length (); | |
966 | |
967 assert (nargin == 0 || nargin == 1); | |
968 | |
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969 octave::unwind_protect frame; |
3707 | 970 |
21748
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971 frame.add_fcn (octave::command_history::ignore_entries, |
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972 octave::command_history::ignoring_entries ()); |
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973 |
21748
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974 octave::command_history::ignore_entries (false); |
3707 | 975 |
10066
2cd940306a06
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976 frame.protect_var (Vdebugging); |
7752
40c428ea3408
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977 |
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978 octave::call_stack& cs = interp.get_call_stack (); |
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979 |
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980 frame.add_method (cs, &octave::call_stack::restore_frame, |
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981 cs.current_frame ()); |
3707 | 982 |
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983 // FIXME: probably we just want to print one line, not the |
9484
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984 // entire statement, which might span many lines... |
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985 // |
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986 // tree_print_code tpc (octave_stdout); |
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987 // stmt.accept (tpc); |
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988 |
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989 Vdebugging = true; |
22164
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Track line numbers when in debug mode (bug #45764)
Lachlan Andrew <lachlanbis@gmail.com>
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990 Vtrack_line_num = false; |
3707 | 991 |
7787
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992 std::string prompt = "debug> "; |
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993 if (nargin > 0) |
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994 prompt = args(0).string_value (); |
4233 | 995 |
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996 get_debug_input (interp, prompt); |
3707 | 997 |
998 return retval; | |
999 } | |
1000 | |
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1001 octave_value |
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1002 do_keyboard (const octave_value_list& args) |
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1003 { |
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1004 octave::interpreter& interp = octave::__get_interpreter__ ("do_keyboard"); |
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1005 |
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1006 return do_keyboard (interp, args); |
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1007 } |
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1008 |
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1009 DEFMETHOD (keyboard, interp, args, , |
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1010 doc: /* -*- texinfo -*- |
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1011 @deftypefn {} {} keyboard () |
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1012 @deftypefnx {} {} keyboard ("@var{prompt}") |
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1013 Stop m-file execution and enter debug mode. |
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1014 |
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1015 When the @code{keyboard} function is executed, Octave prints a prompt and |
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1016 waits for user input. The input strings are then evaluated and the results |
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1017 are printed. This makes it possible to examine the values of variables |
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1018 within a function, and to assign new values if necessary. To leave the |
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1019 prompt and return to normal execution type @samp{return} or @samp{dbcont}. |
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1020 The @code{keyboard} function does not return an exit status. |
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1021 |
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1022 If @code{keyboard} is invoked without arguments, a default prompt of |
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1023 @samp{debug> } is used. |
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1024 @seealso{dbstop, dbcont, dbquit} |
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1025 @end deftypefn */) |
529 | 1026 { |
20819
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1027 if (args.length () > 1) |
20801
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1028 print_usage (); |
10186
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1029 |
21743
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1030 octave::unwind_protect frame; |
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1031 |
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1032 octave::call_stack& cs = interp.get_call_stack (); |
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1033 |
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1034 frame.add_method (cs, &octave::call_stack::restore_frame, |
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1035 cs.current_frame ()); |
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1036 |
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1037 // Skip the frame assigned to the keyboard function. |
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1038 cs.goto_frame_relative (0); |
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1039 |
22196
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1040 octave::tree_evaluator::debug_mode = true; |
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1041 octave::tree_evaluator::quiet_breakpoint_flag = false; |
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1042 |
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1043 octave::tree_evaluator::current_frame = cs.current_frame (); |
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1044 |
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1045 do_keyboard (interp, args); |
529 | 1046 |
20941
a4f5da7c5463
maint: Replace "octave_value_list ()" with "ovl ()".
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20940
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1047 return ovl (); |
529 | 1048 } |
1049 | |
2234 | 1050 DEFUN (completion_matches, args, nargout, |
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1051 doc: /* -*- texinfo -*- |
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1052 @deftypefn {} {} completion_matches (@var{hint}) |
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1053 Generate possible completions given @var{hint}. |
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1054 |
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1055 This function is provided for the benefit of programs like Emacs which |
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1056 might be controlling Octave and handling user input. The current |
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1057 command number is not incremented when this function is called. This is |
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1058 a feature, not a bug. |
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1059 @end deftypefn */) |
2234 | 1060 { |
20819
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1061 if (args.length () != 1) |
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1062 print_usage (); |
2234 | 1063 |
20939
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1064 octave_value retval; |
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1065 |
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1066 std::string hint = args(0).string_value (); |
2234 | 1067 |
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1068 int n = 32; |
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1069 |
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1070 string_vector list (n); |
20555
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1071 |
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1072 int k = 0; |
2234 | 1073 |
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1074 for (;;) |
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1075 { |
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1076 std::string cmd = generate_completion (hint, k); |
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1077 |
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1078 if (! cmd.empty ()) |
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1079 { |
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1080 if (k == n) |
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1081 { |
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1082 n *= 2; |
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1083 list.resize (n); |
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1084 } |
2234 | 1085 |
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1086 list[k++] = cmd; |
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1087 } |
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1088 else |
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1089 { |
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1090 list.resize (k); |
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1091 break; |
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1092 } |
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1093 } |
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1094 |
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1095 if (nargout > 0) |
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1096 { |
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1097 if (! list.empty ()) |
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1098 retval = list; |
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1099 else |
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1100 retval = ""; |
2234 | 1101 } |
1102 else | |
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1103 { |
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1104 // We don't use string_vector::list_in_columns here |
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1105 // because it will be easier for Emacs if the names |
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1106 // appear in a single column. |
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1107 |
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1108 int len = list.numel (); |
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1109 |
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1110 for (int i = 0; i < len; i++) |
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1111 octave_stdout << list[i] << "\n"; |
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1112 } |
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1113 |
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1114 octave_completion_matches_called = true; |
2234 | 1115 |
1116 return retval; | |
1117 } | |
1118 | |
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1119 /* |
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1120 %!assert (ischar (completion_matches (""))) |
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1121 %!assert (ischar (completion_matches ("a"))) |
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1122 %!assert (ischar (completion_matches (" "))) |
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1123 %!assert (isempty (completion_matches (" "))) |
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1124 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("")))))) |
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1125 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("a")))))) |
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1126 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("ab")))))) |
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1127 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("abs")))))) |
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1128 %!assert (! any (strcmp ("abs", deblank (cellstr (completion_matches ("absa")))))) |
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1129 |
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1130 %!error completion_matches () |
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1131 %!error completion_matches (1, 2) |
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1132 */ |
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1133 |
16879
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1134 DEFUN (readline_read_init_file, args, , |
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1135 doc: /* -*- texinfo -*- |
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1136 @deftypefn {} {} readline_read_init_file (@var{file}) |
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1137 Read the readline library initialization file @var{file}. |
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1138 |
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1139 If @var{file} is omitted, read the default initialization file |
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1140 (normally @file{~/.inputrc}). |
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1141 |
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1142 @xref{Readline Init File, , , readline, GNU Readline Library}, |
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1143 for details. |
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1144 @seealso{readline_re_read_init_file} |
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1145 @end deftypefn */) |
3189 | 1146 { |
1147 int nargin = args.length (); | |
1148 | |
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1149 if (nargin > 1) |
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1150 print_usage (); |
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1151 |
3189 | 1152 if (nargin == 0) |
21748
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1153 octave::command_editor::read_init_file (); |
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1154 else |
3189 | 1155 { |
5872 | 1156 std::string file = args(0).string_value (); |
3189 | 1157 |
21748
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1158 octave::command_editor::read_init_file (file); |
3189 | 1159 } |
1160 | |
20941
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1161 return ovl (); |
3189 | 1162 } |
1163 | |
16880
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Rename re_read_readline_init_file to readline_re_read_init_file.
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1164 DEFUN (readline_re_read_init_file, args, , |
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1165 doc: /* -*- texinfo -*- |
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1166 @deftypefn {} {} readline_re_read_init_file () |
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1167 Re-read the last readline library initialization file that was read. |
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1168 |
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1169 @xref{Readline Init File, , , readline, GNU Readline Library}, |
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1170 for details. |
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1171 @seealso{readline_read_init_file} |
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1172 @end deftypefn */) |
7758
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1173 { |
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1174 if (args.length () != 0) |
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1175 print_usage (); |
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1176 |
21748
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1177 octave::command_editor::re_read_init_file (); |
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1178 |
20941
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1179 return ovl (); |
7758
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1180 } |
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1181 |
16349
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1182 static int |
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1183 internal_input_event_hook_fcn (void) |
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1184 { |
16378
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1185 input_event_hook_functions.run (); |
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1186 |
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1187 if (input_event_hook_functions.empty ()) |
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1188 octave::command_editor::remove_event_hook (internal_input_event_hook_fcn); |
16152
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1189 |
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1190 return 0; |
3498 | 1191 } |
1192 | |
9215
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1193 DEFUN (add_input_event_hook, args, , |
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1194 doc: /* -*- texinfo -*- |
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1195 @deftypefn {} {@var{id} =} add_input_event_hook (@var{fcn}) |
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1196 @deftypefnx {} {@var{id} =} add_input_event_hook (@var{fcn}, @var{data}) |
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1197 Add the named function or function handle @var{fcn} to the list of functions |
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1198 to call periodically when Octave is waiting for input. |
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1199 |
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1200 The function should have the form |
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1201 |
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1202 @example |
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1203 @var{fcn} (@var{data}) |
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1204 @end example |
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1205 |
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1206 If @var{data} is omitted, Octave calls the function without any arguments. |
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1207 |
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1208 The returned identifier may be used to remove the function handle from the |
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1209 list of input hook functions. |
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1210 @seealso{remove_input_event_hook} |
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1211 @end deftypefn */) |
3498 | 1212 { |
1213 int nargin = args.length (); | |
1214 | |
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1215 if (nargin < 1 || nargin > 2) |
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1216 print_usage (); |
3498 | 1217 |
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1218 octave_value user_data; |
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1219 |
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1220 if (nargin == 2) |
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1221 user_data = args(1); |
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1222 |
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1223 hook_function hook_fcn (args(0), user_data); |
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1224 |
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1225 if (input_event_hook_functions.empty ()) |
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1226 octave::command_editor::add_event_hook (internal_input_event_hook_fcn); |
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1227 |
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1228 input_event_hook_functions.insert (hook_fcn.id (), hook_fcn); |
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1229 |
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1230 return ovl (hook_fcn.id ()); |
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1231 } |
3498 | 1232 |
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1233 DEFUN (remove_input_event_hook, args, , |
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1234 doc: /* -*- texinfo -*- |
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1235 @deftypefn {} {} remove_input_event_hook (@var{name}) |
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1236 @deftypefnx {} {} remove_input_event_hook (@var{fcn_id}) |
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1237 Remove the named function or function handle with the given identifier |
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1238 from the list of functions to call periodically when Octave is waiting |
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1239 for input. |
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1240 @seealso{add_input_event_hook} |
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1241 @end deftypefn */) |
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1242 { |
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1243 int nargin = args.length (); |
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1244 |
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1245 if (nargin < 1 || nargin > 2) |
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1246 print_usage (); |
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1247 |
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1248 std::string hook_fcn_id = args(0).string_value ("remove_input_event_hook: argument not valid as a hook function name or id"); |
3498 | 1249 |
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1250 bool warn = (nargin < 2); |
3498 | 1251 |
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1252 hook_function_list::iterator p |
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1253 = input_event_hook_functions.find (hook_fcn_id); |
3498 | 1254 |
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1255 if (p != input_event_hook_functions.end ()) |
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1256 input_event_hook_functions.erase (p); |
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1257 else if (warn) |
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1258 warning ("remove_input_event_hook: %s not found in list", |
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1259 hook_fcn_id.c_str ()); |
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1260 |
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1261 if (input_event_hook_functions.empty ()) |
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1262 octave::command_editor::remove_event_hook (internal_input_event_hook_fcn); |
3498 | 1263 |
20941
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1264 return ovl (); |
3498 | 1265 } |
1266 | |
5794 | 1267 DEFUN (PS1, args, nargout, |
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1268 doc: /* -*- texinfo -*- |
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1269 @deftypefn {} {@var{val} =} PS1 () |
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1270 @deftypefnx {} {@var{old_val} =} PS1 (@var{new_val}) |
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1271 @deftypefnx {} {} PS1 (@var{new_val}, "local") |
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1272 Query or set the primary prompt string. |
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1273 |
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1274 When executing interactively, Octave displays the primary prompt when it is |
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1275 ready to read a command. |
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1276 |
24595
5ed2e9248ee9
doc: Tweaks to use single quotes instead of double quotes (bug #52870).
Rik <rik@octave.org>
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diff
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|
1277 The default value of the primary prompt string is @qcode{'octave:\#> '}. |
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1278 To change it, use a command like |
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1279 |
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1280 @example |
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1281 PS1 ("\\u@@\\H> ") |
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1282 @end example |
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1283 |
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1284 @noindent |
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1285 which will result in the prompt @samp{boris@@kremvax> } for the user |
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1286 @samp{boris} logged in on the host @samp{kremvax.kgb.su}. Note that two |
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1287 backslashes are required to enter a backslash into a double-quoted |
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1288 character string. @xref{Strings}. |
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1289 |
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1290 You can also use ANSI escape sequences if your terminal supports them. |
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1291 This can be useful for coloring the prompt. For example, |
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1292 |
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1293 @example |
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1294 PS1 ('\[\033[01;31m\]\s:\#> \[\033[0m\]') |
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1295 @end example |
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1296 |
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1297 @noindent |
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1298 will give the default Octave prompt a red coloring. |
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1299 |
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1300 When called from inside a function with the @qcode{"local"} option, the |
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1301 variable is changed locally for the function and any subroutines it calls. |
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1302 The original variable value is restored when exiting the function. |
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1303 @seealso{PS2, PS4} |
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1304 @end deftypefn */) |
5794 | 1305 { |
1306 return SET_INTERNAL_VARIABLE (PS1); | |
1307 } | |
2181 | 1308 |
5794 | 1309 DEFUN (PS2, args, nargout, |
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1310 doc: /* -*- texinfo -*- |
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1311 @deftypefn {} {@var{val} =} PS2 () |
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1312 @deftypefnx {} {@var{old_val} =} PS2 (@var{new_val}) |
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1313 @deftypefnx {} {} PS2 (@var{new_val}, "local") |
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1314 Query or set the secondary prompt string. |
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1315 |
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1316 The secondary prompt is printed when Octave is expecting additional input to |
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1317 complete a command. For example, if you are typing a @code{for} loop that |
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1318 spans several lines, Octave will print the secondary prompt at the beginning |
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1319 of each line after the first. The default value of the secondary prompt |
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1320 string is @qcode{"> "}. |
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1321 |
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1322 When called from inside a function with the @qcode{"local"} option, the |
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1323 variable is changed locally for the function and any subroutines it calls. |
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1324 The original variable value is restored when exiting the function. |
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1325 @seealso{PS1, PS4} |
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1326 @end deftypefn */) |
5794 | 1327 { |
1328 return SET_INTERNAL_VARIABLE (PS2); | |
1329 } | |
2181 | 1330 |
5794 | 1331 DEFUN (completion_append_char, args, nargout, |
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1332 doc: /* -*- texinfo -*- |
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1333 @deftypefn {} {@var{val} =} completion_append_char () |
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1334 @deftypefnx {} {@var{old_val} =} completion_append_char (@var{new_val}) |
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1335 @deftypefnx {} {} completion_append_char (@var{new_val}, "local") |
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1336 Query or set the internal character variable that is appended to |
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1337 successful command-line completion attempts. |
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1338 |
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1339 The default value is @qcode{" "} (a single space). |
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1340 |
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1341 When called from inside a function with the @qcode{"local"} option, the |
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1342 variable is changed locally for the function and any subroutines it calls. |
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1343 The original variable value is restored when exiting the function. |
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1344 @end deftypefn */) |
5794 | 1345 { |
1346 return SET_INTERNAL_VARIABLE (completion_append_char); | |
1347 } | |
3019 | 1348 |
6257 | 1349 DEFUN (__request_drawnow__, args, , |
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1350 doc: /* -*- texinfo -*- |
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1351 @deftypefn {} {} __request_drawnow__ () |
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1352 @deftypefnx {} {} __request_drawnow__ (@var{flag}) |
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1353 Undocumented internal function. |
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1354 @end deftypefn */) |
6257 | 1355 { |
1356 int nargin = args.length (); | |
1357 | |
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1358 if (nargin > 1) |
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1359 print_usage (); |
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1360 |
6257 | 1361 if (nargin == 0) |
1362 Vdrawnow_requested = true; | |
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1363 else |
6257 | 1364 Vdrawnow_requested = args(0).bool_value (); |
1365 | |
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1366 return ovl (); |
6257 | 1367 } |
1368 | |
7294 | 1369 DEFUN (__gud_mode__, args, , |
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1370 doc: /* -*- texinfo -*- |
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1371 @deftypefn {} {} __gud_mode__ () |
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1372 Undocumented internal function. |
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1373 @end deftypefn */) |
7294 | 1374 { |
1375 int nargin = args.length (); | |
1376 | |
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1377 if (nargin > 1) |
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1378 print_usage (); |
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1379 |
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1380 octave_value_list retval; |
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1381 |
7294 | 1382 if (nargin == 0) |
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1383 retval = ovl (Vgud_mode); |
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1384 else |
7294 | 1385 Vgud_mode = args(0).bool_value (); |
1386 | |
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1387 return retval; |
7294 | 1388 } |