Mercurial > octave
annotate libinterp/corefcn/input.cc @ 25659:e6d3f4f9473c
always provide definitions for deprecated functions
Previously, deprecated functions that were defined in source files
instead of as inline functions in header files were not available even
when OCTAVE_USE_DEPRECATED_FUNCTIONS was defined (declarations were
made available, but the definitions were not present, so using them
was impossible).
* input.cc, utils.cc, oct-base64.cc: Always provide
definitions of deprecated functions that are defined in source files.
* lo-specfun.cc: Delete wrappers for functions no longer exist.
* input.h, input.cc (set_default_prompts): Delete wrapper for functon
that no longer exists.
* MArray-i.cc, MArray-s.cc: Delete instantiations of functions that no
longer exist.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 23 Jul 2018 10:15:26 -0400 |
parents | 467729037209 |
children | ba8227df92ae |
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" |
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40 #include "iconv-wrappers.h" |
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41 #include "localcharset-wrapper.h" |
4153 | 42 #include "quit.h" |
1755 | 43 #include "str-vec.h" |
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44 #include "uniconv-wrappers.h" |
1755 | 45 |
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46 #include "builtin-defun-decls.h" |
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47 #include "call-stack.h" |
1352 | 48 #include "defun.h" |
49 #include "dirfns.h" | |
1 | 50 #include "error.h" |
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51 #include "errwarn.h" |
3016 | 52 #include "help.h" |
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53 #include "hook-fcn.h" |
1 | 54 #include "input.h" |
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55 #include "interpreter-private.h" |
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56 #include "interpreter.h" |
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57 #include "lex.h" |
5832 | 58 #include "load-path.h" |
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59 #include "octave.h" |
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60 #include "octave-link.h" |
1352 | 61 #include "oct-map.h" |
1742 | 62 #include "oct-hist.h" |
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63 #include "interpreter.h" |
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64 #include "octave-link.h" |
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65 #include "ovl.h" |
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66 #include "ov-fcn-handle.h" |
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67 #include "ov-usr-fcn.h" |
1 | 68 #include "pager.h" |
529 | 69 #include "parse.h" |
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70 #include "pt-eval.h" |
3805 | 71 #include "pt-stmt.h" |
1352 | 72 #include "sighandlers.h" |
1114 | 73 #include "sysdep.h" |
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74 #include "interpreter.h" |
3098 | 75 #include "unwind-prot.h" |
1352 | 76 #include "utils.h" |
77 #include "variables.h" | |
529 | 78 |
3165 | 79 // The time we last printed a prompt. |
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80 octave::sys::time Vlast_prompt_time = 0.0; |
3165 | 81 |
3804 | 82 // TRUE after a call to completion_matches. |
2299 | 83 bool octave_completion_matches_called = false; |
84 | |
6257 | 85 // TRUE if the plotting system has requested a call to drawnow at |
86 // the next user prompt. | |
7409 | 87 bool Vdrawnow_requested = false; |
6257 | 88 |
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89 // TRUE if we are in debugging mode. |
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90 bool Vdebugging = false; |
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91 |
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92 // TRUE if we are recording line numbers in a source file. |
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93 // Always true except when debugging and taking input directly from |
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94 // the terminal. |
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95 bool Vtrack_line_num = true; |
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96 |
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97 static std::string |
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98 quoting_filename (const std::string& text, int, char quote) |
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99 { |
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100 if (quote) |
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101 return text; |
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102 else |
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103 return ("'" + text); |
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104 } |
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105 |
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106 // Try to parse a partial command line in reverse, excluding trailing TEXT. |
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107 // If it appears a variable has been indexed by () or {}, |
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108 // return that expression, |
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109 // to allow autocomplete of field names of arrays of structures. |
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110 static std::string |
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111 find_indexed_expression (const std::string& text) |
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112 { |
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113 std::string line = octave::command_editor::get_line_buffer (); |
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114 |
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115 int pos = line.length () - text.length (); |
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116 int curly_count = 0; |
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117 int paren_count = 0; |
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118 |
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119 int last = --pos; |
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120 |
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121 while (pos >= 0 && (line[pos] == ')' || line[pos] == '}')) |
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122 { |
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123 if (line[pos] == ')') |
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124 paren_count++; |
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125 else if (line[pos] == '}') |
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126 curly_count++; |
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127 |
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128 while (curly_count + paren_count > 0 && --pos >= 0) |
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129 { |
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130 if (line[pos] == ')') |
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131 paren_count++; |
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132 else if (line[pos] == '(') |
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133 paren_count--; |
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134 else if (line[pos] == '}') |
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135 curly_count++; |
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136 else if (line[pos] == '{') |
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137 curly_count--; |
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138 } |
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139 |
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140 while (--pos >= 0 && line[pos] == ' ') |
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141 ; |
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142 } |
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143 |
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144 while (pos >= 0 && (isalnum (line[pos]) || line[pos] == '_')) |
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145 pos--; |
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146 |
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147 if (++pos >= 0) |
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148 return (line.substr (pos, last + 1 - pos)); |
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149 else |
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150 return std::string (); |
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151 } |
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152 |
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153 static inline bool |
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154 is_variable (octave::symbol_table& symtab, const std::string& name) |
1822 | 155 { |
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156 bool retval = false; |
5142 | 157 |
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158 if (! name.empty ()) |
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159 { |
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160 octave::symbol_scope scope = symtab.current_scope (); |
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162 octave_value val = scope ? scope.varval (name) : octave_value (); |
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163 |
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164 retval = val.is_defined (); |
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165 } |
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167 return retval; | |
168 } | |
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170 static string_vector |
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171 generate_struct_completions (const std::string& text, |
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172 std::string& prefix, std::string& hint) |
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174 string_vector names; |
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175 |
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176 size_t pos = text.rfind ('.'); |
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177 bool array = false; |
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179 if (pos != std::string::npos) |
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181 if (pos == text.length ()) |
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182 hint = ""; |
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183 else |
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184 hint = text.substr (pos+1); |
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185 |
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186 prefix = text.substr (0, pos); |
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187 |
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188 if (prefix == "") |
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189 { |
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190 array = true; |
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191 prefix = find_indexed_expression (text); |
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192 } |
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194 std::string base_name = prefix; |
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195 |
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196 pos = base_name.find_first_of ("{(. "); |
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197 |
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198 if (pos != std::string::npos) |
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199 base_name = base_name.substr (0, pos); |
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201 octave::symbol_table& symtab |
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202 = octave::__get_symbol_table__ ("generate_struct_completions"); |
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203 |
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204 if (is_variable (symtab, base_name)) |
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205 { |
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206 int parse_status; |
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207 |
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208 octave::unwind_protect frame; |
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209 |
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210 frame.protect_var (discard_error_messages); |
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211 frame.protect_var (discard_warning_messages); |
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213 discard_error_messages = true; |
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214 discard_warning_messages = true; |
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215 |
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216 try |
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217 { |
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218 octave_value tmp = octave::eval_string (prefix, true, parse_status); |
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219 |
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220 frame.run (); |
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222 if (tmp.is_defined () |
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223 && (tmp.isstruct () || tmp.isjava () || tmp.is_classdef_object ())) |
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224 names = tmp.map_keys (); |
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225 } |
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226 catch (const octave::execution_exception&) |
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227 { |
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228 octave::interpreter::recover_from_exception (); |
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229 } |
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230 } |
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232 | |
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233 // Undo look-back that found the array expression, |
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234 // but insert an extra "." to distinguish from the non-struct case. |
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235 if (array) |
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236 prefix = "."; |
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237 |
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238 return names; |
6257 | 239 } |
240 | |
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241 // FIXME: this will have to be much smarter to work "correctly". |
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242 static bool |
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243 looks_like_struct (const std::string& text, char prev_char) |
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245 bool retval = (! text.empty () |
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246 && (text != "." || prev_char == ')' || prev_char == '}') |
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247 && text.find_first_of (octave::sys::file_ops::dir_sep_chars ()) == std::string::npos |
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248 && text.find ("..") == std::string::npos |
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249 && text.rfind ('.') != std::string::npos); |
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251 #if 0 |
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252 symbol_record *sr = curr_sym_tab->lookup (text); |
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253 |
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254 if (sr && ! sr->is_function ()) |
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255 { |
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256 int parse_status; |
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257 |
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258 octave::unwind_protect frame; |
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259 |
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260 frame.protect_var (discard_error_messages); |
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261 |
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262 discard_error_messages = true; |
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263 |
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264 octave_value tmp = eval_string (text, true, parse_status); |
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265 |
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266 frame.run (); |
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267 |
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268 retval = (tmp.is_defined () && tmp.isstruct ()); |
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269 } |
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270 #endif |
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271 |
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272 return retval; |
1 | 273 } |
274 | |
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275 // FIXME: make this generate filenames when appropriate. |
2921 | 276 |
2247 | 277 static string_vector |
3523 | 278 generate_possible_completions (const std::string& text, std::string& prefix, |
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279 std::string& hint, bool& deemed_struct) |
1280 | 280 { |
2247 | 281 string_vector names; |
1280 | 282 |
2921 | 283 prefix = ""; |
1280 | 284 |
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285 char prev_char = octave::command_editor::get_prev_char (text.length ()); |
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286 deemed_struct = looks_like_struct (text, prev_char); |
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287 |
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288 if (deemed_struct) |
1430 | 289 names = generate_struct_completions (text, prefix, hint); |
290 else | |
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291 names = octave::make_name_list (); |
1280 | 292 |
2944 | 293 // Sort and remove duplicates. |
2348 | 294 |
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295 names.sort (true); |
2348 | 296 |
1280 | 297 return names; |
298 } | |
299 | |
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300 static bool |
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301 is_completing_dirfns (void) |
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302 { |
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303 static std::string dirfns_commands[] = {"cd", "ls"}; |
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304 static const size_t dirfns_commands_length = 2; |
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305 |
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306 bool retval = false; |
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307 |
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308 std::string line = octave::command_editor::get_line_buffer (); |
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309 |
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310 for (size_t i = 0; i < dirfns_commands_length; i++) |
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311 { |
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312 int index = line.find (dirfns_commands[i] + ' '); |
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313 |
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314 if (index == 0) |
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315 { |
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316 retval = true; |
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317 break; |
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318 } |
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319 } |
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320 |
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321 return retval; |
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322 } |
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323 |
3536 | 324 static std::string |
3523 | 325 generate_completion (const std::string& text, int state) |
1280 | 326 { |
3523 | 327 std::string retval; |
2944 | 328 |
3523 | 329 static std::string prefix; |
330 static std::string hint; | |
1280 | 331 |
2921 | 332 static size_t hint_len = 0; |
1280 | 333 |
1 | 334 static int list_index = 0; |
2921 | 335 static int name_list_len = 0; |
4604 | 336 static int name_list_total_len = 0; |
2247 | 337 static string_vector name_list; |
4604 | 338 static string_vector file_name_list; |
1 | 339 |
1280 | 340 static int matches = 0; |
1 | 341 |
342 if (state == 0) | |
343 { | |
344 list_index = 0; | |
345 | |
2921 | 346 prefix = ""; |
1280 | 347 |
2921 | 348 hint = text; |
1280 | 349 |
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350 // No reason to display symbols while completing a |
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351 // file/directory operation. |
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352 |
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353 bool deemed_struct = false; |
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354 |
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355 if (is_completing_dirfns ()) |
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356 name_list = string_vector (); |
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357 else |
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358 name_list = generate_possible_completions (text, prefix, hint, |
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359 deemed_struct); |
1280 | 360 |
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361 name_list_len = name_list.numel (); |
2921 | 362 |
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363 // If the line was something like "a{1}." then text = "." but |
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364 // we don't want to expand all the . files. |
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365 if (! deemed_struct) |
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366 { |
4604 | 367 |
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368 file_name_list = octave::command_editor::generate_filename_completions (text); |
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369 |
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370 name_list.append (file_name_list); |
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371 |
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372 } |
4604 | 373 |
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374 name_list_total_len = name_list.numel (); |
4604 | 375 |
2921 | 376 hint_len = hint.length (); |
1280 | 377 |
378 matches = 0; | |
2247 | 379 |
2921 | 380 for (int i = 0; i < name_list_len; i++) |
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381 if (hint == name_list[i].substr (0, hint_len)) |
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382 matches++; |
1 | 383 } |
384 | |
4604 | 385 if (name_list_total_len > 0 && matches > 0) |
1 | 386 { |
4604 | 387 while (list_index < name_list_total_len) |
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388 { |
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389 std::string name = name_list[list_index]; |
2247 | 390 |
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391 list_index++; |
2247 | 392 |
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393 if (hint == name.substr (0, hint_len)) |
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394 { |
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395 // Special case: array reference forces prefix="." |
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396 // in generate_struct_completions () |
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397 if (list_index <= name_list_len && ! prefix.empty ()) |
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398 retval = (prefix == "." ? "" : prefix) + '.' + name; |
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399 else |
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400 retval = name; |
1280 | 401 |
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402 char prev_char = octave::command_editor::get_prev_char |
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403 (text.length ()); |
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404 if (matches == 1 && looks_like_struct (retval, prev_char)) |
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405 { |
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406 // Don't append anything, since we don't know |
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407 // whether it should be '(' or '.'. |
4179 | 408 |
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409 octave::command_editor::set_completion_append_character ('\0'); |
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410 } |
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411 else |
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412 { |
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413 octave::input_system& input_sys |
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414 = octave::__get_input_system__ ("generate_completion"); |
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415 |
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416 octave::command_editor::set_completion_append_character |
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417 (input_sys.completion_append_char ()); |
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418 } |
1280 | 419 |
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420 break; |
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421 } |
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422 } |
1 | 423 } |
424 | |
2944 | 425 return retval; |
1 | 426 } |
427 | |
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428 namespace octave |
6979 | 429 { |
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430 // Use literal "octave" in default setting for PS1 instead of |
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431 // "\\s" to avoid setting the prompt to "octave.exe" or |
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432 // "octave-gui", etc. |
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433 |
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434 input_system::input_system (interpreter& interp) |
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435 : m_interpreter (interp), m_PS1 (R"(octave:\#> )"), m_PS2 ("> "), |
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436 m_completion_append_char (' '), m_gud_mode (false), |
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437 m_mfile_encoding ("utf-8"), m_last_debugging_command ("\n"), |
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438 m_input_event_hook_functions () |
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439 { |
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440 #if defined (OCTAVE_USE_WINDOWS_API) |
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441 m_mfile_encoding = "system"; |
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442 #endif |
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443 } |
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444 |
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445 void input_system::initialize (bool line_editing) |
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446 { |
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447 // Force default line editor if we don't want readline editing. |
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448 if (! line_editing) |
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449 { |
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450 command_editor::force_default_editor (); |
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451 return; |
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452 } |
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453 |
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454 // If we are using readline, this allows conditional parsing of the |
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455 // .inputrc file. |
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456 |
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457 octave::command_editor::set_name ("Octave"); |
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458 |
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459 // FIXME: this needs to include a comma too, but that |
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460 // causes trouble for the new struct element completion code. |
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461 |
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462 static const char *s = "\t\n !\"\'*+-/:;<=>(){}[\\]^`~"; |
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463 |
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464 octave::command_editor::set_basic_word_break_characters (s); |
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465 |
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466 octave::command_editor::set_completer_word_break_characters (s); |
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467 |
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468 octave::command_editor::set_basic_quote_characters (R"(")"); |
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469 |
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470 octave::command_editor::set_filename_quote_characters (" \t\n\\\"'@<>=;|&()#$`?*[!:{"); |
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471 |
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472 octave::command_editor::set_completer_quote_characters (R"('")"); |
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473 |
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474 octave::command_editor::set_completion_function (generate_completion); |
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475 |
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476 octave::command_editor::set_quoting_function (quoting_filename); |
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477 } |
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478 |
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479 octave_value |
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480 input_system::PS1 (const octave_value_list& args, int nargout) |
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481 { |
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482 return set_internal_variable (m_PS1, args, nargout, "PS1"); |
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483 } |
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484 |
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485 octave_value |
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486 input_system::PS2 (const octave_value_list& args, int nargout) |
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487 { |
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488 return set_internal_variable (m_PS2, args, nargout, "PS2"); |
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489 } |
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490 |
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491 octave_value |
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492 input_system::completion_append_char (const octave_value_list& args, |
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493 int nargout) |
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494 { |
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495 return set_internal_variable (m_completion_append_char, args, nargout, |
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496 "completion_append_char"); |
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497 } |
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498 |
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499 octave_value |
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500 input_system::gud_mode (const octave_value_list& args, int nargout) |
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501 { |
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502 return set_internal_variable (m_gud_mode, args, nargout, "__gud_mode__"); |
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503 } |
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505 octave_value |
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506 input_system::mfile_encoding (const octave_value_list& args, int nargout) |
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507 { |
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508 // Save current value in case there is an error in the additional |
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509 // validation below. |
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510 |
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511 std::string saved_encoding = m_mfile_encoding; |
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512 |
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513 // We must pass the actual variable to change here for temporary |
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514 // "local" settings to work properly. |
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515 |
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516 octave_value retval |
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517 = set_internal_variable (m_mfile_encoding, args, nargout, |
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518 "__mfile_encoding__"); |
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519 |
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520 // Additional validation if the encoding has changed. |
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522 if (m_mfile_encoding != saved_encoding) |
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523 { |
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524 if (m_mfile_encoding.empty ()) |
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525 { |
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526 #if defined (OCTAVE_USE_WINDOWS_API) |
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527 m_mfile_encoding = "system"; |
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528 #else |
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529 m_mfile_encoding = "utf-8"; |
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530 #endif |
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531 } |
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532 else |
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533 { |
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534 std::transform (m_mfile_encoding.begin (), |
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535 m_mfile_encoding.end (), |
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536 m_mfile_encoding.begin (), ::tolower); |
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538 std::string codepage = (m_mfile_encoding.compare ("system") == 0) |
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539 ? octave_locale_charset_wrapper () : m_mfile_encoding; |
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541 // Check for valid codepage. |
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542 void *codec |
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543 = octave_iconv_open_wrapper (codepage.c_str (), "utf-8"); |
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544 |
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545 if (errno == EINVAL) |
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546 { |
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547 m_mfile_encoding = saved_encoding; |
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549 error ("__mfile_encoding__: conversion from codepage '%s' not supported", |
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550 codepage.c_str ()); |
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551 } |
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553 octave_iconv_close_wrapper (codec); |
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554 } |
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555 } |
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556 |
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557 return retval; |
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558 } |
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559 |
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560 bool input_system::yes_or_no (const std::string& prompt) |
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561 { |
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562 std::string prompt_string = prompt + "(yes or no) "; |
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564 while (1) |
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565 { |
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566 bool eof = false; |
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567 |
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568 std::string input_buf = interactive_input (prompt_string, eof); |
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570 if (input_buf == "yes") |
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571 return true; |
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572 else if (input_buf == "no") |
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573 return false; |
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574 else |
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575 message (nullptr, "Please answer yes or no."); |
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576 } |
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577 } |
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578 |
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579 std::string input_system::interactive_input (const std::string& s, bool& eof) |
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580 { |
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581 Vlast_prompt_time.stamp (); |
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582 |
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583 if (Vdrawnow_requested && octave::application::interactive ()) |
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584 { |
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585 bool eval_error = false; |
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587 try |
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588 { |
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589 Fdrawnow (); |
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590 } |
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591 catch (const octave::execution_exception& e) |
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592 { |
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593 eval_error = true; |
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594 |
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595 std::string stack_trace = e.info (); |
269 | 596 |
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597 if (! stack_trace.empty ()) |
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598 std::cerr << stack_trace; |
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599 |
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600 if (octave::application::interactive ()) |
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601 octave::interpreter::recover_from_exception (); |
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602 } |
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603 |
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604 octave::flush_stdout (); |
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605 |
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606 // We set Vdrawnow_requested to false even if there is an error in |
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607 // drawnow so that the error doesn't reappear at every prompt. |
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608 |
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609 Vdrawnow_requested = false; |
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610 |
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611 if (eval_error) |
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612 return "\n"; |
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613 } |
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614 |
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615 return gnu_readline (s, eof); |
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616 } |
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617 |
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618 // If the user simply hits return, this will produce an empty matrix. |
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619 |
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620 octave_value_list |
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621 input_system::get_user_input (const octave_value_list& args, int nargout) |
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622 { |
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623 octave_value_list retval; |
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624 |
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625 int read_as_string = 0; |
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626 |
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627 if (args.length () == 2) |
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628 read_as_string++; |
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629 |
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630 std::string prompt = args(0).xstring_value ("input: unrecognized argument"); |
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631 |
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632 output_system& output_sys = __get_output_system__ ("do_sync"); |
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633 |
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634 output_sys.reset (); |
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635 |
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636 octave_diary << prompt; |
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637 |
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638 bool eof = false; |
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639 |
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640 std::string input_buf = interactive_input (prompt.c_str (), eof); |
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641 |
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642 if (input_buf.empty ()) |
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643 error ("input: reading user-input failed!"); |
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644 |
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645 size_t len = input_buf.length (); |
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646 |
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647 octave_diary << input_buf; |
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648 |
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649 if (input_buf[len - 1] != '\n') |
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650 octave_diary << "\n"; |
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651 |
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652 if (len < 1) |
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653 return read_as_string ? octave_value ("") : octave_value (Matrix ()); |
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654 |
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655 if (read_as_string) |
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656 { |
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657 // FIXME: fix gnu_readline and octave_gets instead! |
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658 if (input_buf.length () == 1 && input_buf[0] == '\n') |
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659 retval(0) = ""; |
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660 else |
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661 retval(0) = input_buf; |
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662 } |
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663 else |
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664 { |
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665 int parse_status = 0; |
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666 |
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667 retval = octave::eval_string (input_buf, true, parse_status, nargout); |
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668 |
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669 if (! Vdebugging && retval.empty ()) |
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670 retval(0) = Matrix (); |
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671 } |
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672 |
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673 return retval; |
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674 } |
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675 |
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676 octave_value input_system::keyboard (const octave_value_list& args) |
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677 { |
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678 octave_value retval; |
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679 |
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680 int nargin = args.length (); |
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681 |
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682 assert (nargin == 0 || nargin == 1); |
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683 |
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684 octave::unwind_protect frame; |
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685 |
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686 frame.add_fcn (octave::command_history::ignore_entries, |
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687 octave::command_history::ignoring_entries ()); |
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688 |
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689 octave::command_history::ignore_entries (false); |
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690 |
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691 frame.protect_var (Vdebugging); |
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692 |
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693 octave::call_stack& cs = m_interpreter.get_call_stack (); |
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694 |
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695 frame.add_method (cs, &octave::call_stack::restore_frame, |
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696 cs.current_frame ()); |
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697 |
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698 // FIXME: probably we just want to print one line, not the |
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699 // entire statement, which might span many lines... |
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700 // |
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701 // tree_print_code tpc (octave_stdout); |
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702 // stmt.accept (tpc); |
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703 |
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704 Vdebugging = true; |
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705 Vtrack_line_num = false; |
3180 | 706 |
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707 std::string prompt = "debug> "; |
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708 if (nargin > 0) |
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709 prompt = args(0).string_value (); |
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710 |
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711 get_debug_input (prompt); |
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712 |
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713 return retval; |
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714 } |
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715 |
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716 bool input_system::have_input_event_hooks (void) const |
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717 { |
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718 return ! m_input_event_hook_functions.empty (); |
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719 } |
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720 |
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721 void input_system::add_input_event_hook (const hook_function& hook_fcn) |
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722 { |
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|
723 m_input_event_hook_functions.insert (hook_fcn.id (), hook_fcn); |
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724 } |
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
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diff
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|
725 |
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726 bool input_system::remove_input_event_hook (const std::string& hook_fcn_id) |
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727 { |
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|
728 hook_function_list::iterator p |
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729 = m_input_event_hook_functions.find (hook_fcn_id); |
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|
730 |
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|
731 if (p == m_input_event_hook_functions.end ()) |
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732 return false; |
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|
733 |
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|
734 m_input_event_hook_functions.erase (p); |
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735 return true; |
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|
736 } |
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|
737 |
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738 void input_system::clear_input_event_hooks (void) |
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|
739 { |
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|
740 m_input_event_hook_functions.clear (); |
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741 } |
269 | 742 |
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743 void input_system::run_input_event_hooks (void) |
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744 { |
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745 m_input_event_hook_functions.run (); |
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|
746 } |
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|
747 |
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748 std::string |
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749 input_system::gnu_readline (const std::string& s, bool& eof) const |
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750 { |
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751 octave_quit (); |
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|
752 |
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753 eof = false; |
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754 |
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755 std::string retval = octave::command_editor::readline (s, eof); |
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756 |
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757 if (! eof && retval.empty ()) |
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758 retval = "\n"; |
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|
759 |
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760 return retval; |
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|
761 } |
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|
762 |
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|
763 static void |
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|
764 execute_in_debugger_handler (const std::pair<std::string, int>& arg) |
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765 { |
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|
766 octave_link::execute_in_debugger_event (arg.first, arg.second); |
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|
767 } |
1 | 768 |
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769 void input_system::get_debug_input (const std::string& prompt) |
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770 { |
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771 octave::unwind_protect frame; |
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|
772 |
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773 octave::tree_evaluator& tw = m_interpreter.get_evaluator (); |
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774 |
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775 bool silent = tw.quiet_breakpoint_flag (false); |
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776 |
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777 octave::call_stack& cs = m_interpreter.get_call_stack (); |
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778 |
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779 octave_user_code *caller = cs.caller_user_code (); |
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780 std::string nm; |
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|
781 int curr_debug_line; |
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782 |
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783 if (caller) |
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|
784 { |
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|
785 nm = caller->fcn_file_name (); |
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|
786 |
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|
787 if (nm.empty ()) |
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|
788 nm = caller->name (); |
16395
fc491da603f6
also provide a hook for exiting debugger
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parents:
16386
diff
changeset
|
789 |
25407
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790 curr_debug_line = cs.caller_user_code_line (); |
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|
791 } |
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|
792 else |
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changeset
|
793 curr_debug_line = cs.current_line (); |
16468
0f143f68078d
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parents:
16438
diff
changeset
|
794 |
25407
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|
795 std::ostringstream buf; |
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|
796 |
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|
797 if (! nm.empty ()) |
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|
798 { |
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changeset
|
799 if (m_gud_mode) |
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|
800 { |
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diff
changeset
|
801 static char ctrl_z = 'Z' & 0x1f; |
16374
8b0a04cbdc9d
provide hook function for dbstop events
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parents:
16373
diff
changeset
|
802 |
25407
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new input_system class to manage user input for the interpreter
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|
803 buf << ctrl_z << ctrl_z << nm << ':' << curr_debug_line; |
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|
804 } |
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diff
changeset
|
805 else |
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diff
changeset
|
806 { |
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diff
changeset
|
807 // FIXME: we should come up with a clean way to detect |
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|
808 // that we are stopped on the no-op command that marks the |
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809 // end of a function or script. |
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|
810 |
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|
811 if (! silent) |
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|
812 { |
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diff
changeset
|
813 buf << "stopped in " << nm; |
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diff
changeset
|
814 |
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diff
changeset
|
815 if (curr_debug_line > 0) |
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diff
changeset
|
816 buf << " at line " << curr_debug_line; |
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diff
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|
817 } |
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diff
changeset
|
818 |
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diff
changeset
|
819 octave_link::enter_debugger_event (nm, curr_debug_line); |
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|
820 |
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diff
changeset
|
821 octave_link::set_workspace (); |
23728
b40b7243a782
new class for caching file contents for debug and echo
John W. Eaton <jwe@octave.org>
parents:
23723
diff
changeset
|
822 |
25407
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|
823 frame.add_fcn (execute_in_debugger_handler, |
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changeset
|
824 std::pair<std::string, int> (nm, curr_debug_line)); |
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|
825 |
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changeset
|
826 if (! silent) |
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|
827 { |
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|
828 std::string line_buf; |
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|
829 |
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diff
changeset
|
830 if (caller) |
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diff
changeset
|
831 line_buf = caller->get_code_line (curr_debug_line); |
8658
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changeset
|
832 |
25407
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|
833 if (! line_buf.empty ()) |
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|
834 buf << "\n" << curr_debug_line << ": " << line_buf; |
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|
835 } |
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diff
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|
836 } |
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diff
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|
837 } |
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diff
changeset
|
838 |
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diff
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|
839 if (silent) |
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changeset
|
840 octave::command_editor::erase_empty_line (true); |
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diff
changeset
|
841 |
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842 std::string msg = buf.str (); |
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843 |
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844 if (! msg.empty ()) |
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845 std::cerr << msg << std::endl; |
3180 | 846 |
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847 frame.add_method (*this, &octave::input_system::set_PS1, m_PS1); |
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848 m_PS1 = prompt; |
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849 |
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850 // FIXME: should debugging be possible in an embedded interpreter? |
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851 |
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852 octave::application *app = octave::application::app (); |
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853 |
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854 if (! app->interactive ()) |
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855 { |
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856 |
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857 frame.add_method (app, &octave::application::interactive, |
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858 app->interactive ()); |
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859 |
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860 frame.add_method (app, &octave::application::forced_interactive, |
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861 app->forced_interactive ()); |
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862 |
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863 app->interactive (true); |
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864 |
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865 app->forced_interactive (true); |
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866 } |
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867 |
25441
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868 octave::parser curr_parser (m_interpreter); |
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869 |
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870 while (Vdebugging) |
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871 { |
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872 try |
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873 { |
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874 Vtrack_line_num = false; |
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875 |
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876 reset_error_handler (); |
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877 |
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878 curr_parser.reset (); |
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879 |
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880 int retval = curr_parser.run (); |
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881 |
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882 if (octave::command_editor::interrupt (false)) |
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883 break; |
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884 else |
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885 { |
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886 if (retval == 0 && curr_parser.m_stmt_list) |
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887 { |
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|
888 curr_parser.m_stmt_list->accept (tw); |
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889 |
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890 if (octave_completion_matches_called) |
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891 octave_completion_matches_called = false; |
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892 } |
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|
893 |
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894 octave_quit (); |
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|
895 } |
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|
896 } |
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897 catch (const octave::execution_exception& e) |
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898 { |
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|
899 std::string stack_trace = e.info (); |
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|
900 |
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|
901 if (! stack_trace.empty ()) |
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902 std::cerr << stack_trace; |
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|
903 |
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|
904 // Ignore errors when in debugging mode; |
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|
905 octave::interpreter::recover_from_exception (); |
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|
906 } |
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|
907 } |
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|
908 } |
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|
909 |
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|
910 std::string base_reader::octave_gets (bool& eof) |
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|
911 { |
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|
912 octave_quit (); |
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|
913 |
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|
914 eof = false; |
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|
915 |
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diff
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|
916 std::string retval; |
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|
917 |
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|
918 // Process pre input event hook function prior to flushing output and |
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|
919 // printing the prompt. |
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|
920 |
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|
921 if (application::interactive ()) |
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|
922 { |
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diff
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|
923 if (! Vdebugging) |
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|
924 octave_link::exit_debugger_event (); |
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|
925 |
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|
926 octave_link::pre_input_event (); |
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|
927 |
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diff
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|
928 octave_link::set_workspace (); |
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diff
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|
929 } |
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diff
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|
930 |
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changeset
|
931 bool history_skip_auto_repeated_debugging_command = false; |
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|
932 |
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|
933 input_system& input_sys = __get_input_system__ ("base_reader::octave_gets"); |
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|
934 |
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|
935 std::string ps = (m_pflag > 0) ? input_sys.PS1 () : input_sys.PS2 (); |
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|
936 |
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|
937 std::string prompt = command_editor::decode_prompt_string (ps); |
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|
938 |
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|
939 pipe_handler_error_count = 0; |
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940 |
25435
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|
941 output_system& output_sys = __get_output_system__ ("do_sync"); |
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|
942 |
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|
943 output_sys.reset (); |
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|
944 |
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|
945 octave_diary << prompt; |
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|
946 |
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diff
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|
947 retval = input_sys.interactive_input (prompt, eof); |
12907
6e1b9f079e0f
allow debugging when input is not coming from a tty
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12573
diff
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|
948 |
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|
949 // There is no need to update the load_path cache if there is no |
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|
950 // user input. |
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|
951 if (retval != "\n" |
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|
952 && retval.find_first_not_of (" \t\n\r") != std::string::npos) |
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|
953 { |
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|
954 load_path& lp = __get_load_path__ ("base_reader::octave_gets"); |
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|
955 |
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|
956 lp.update (); |
16151 | 957 |
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|
958 if (Vdebugging) |
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|
959 input_sys.last_debugging_command (retval); |
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|
960 else |
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changeset
|
961 input_sys.last_debugging_command ("\n"); |
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|
962 } |
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963 else if (Vdebugging) |
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964 { |
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|
965 retval = input_sys.last_debugging_command (); |
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966 history_skip_auto_repeated_debugging_command = true; |
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967 } |
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|
968 |
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969 if (retval != "\n") |
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970 { |
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971 if (! history_skip_auto_repeated_debugging_command) |
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972 { |
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973 if (command_history::add (retval)) |
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974 octave_link::append_history (retval); |
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975 } |
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976 |
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977 octave_diary << retval; |
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|
978 |
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979 if (retval.back () != '\n') |
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980 octave_diary << "\n"; |
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981 } |
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982 else |
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983 octave_diary << "\n"; |
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984 |
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985 // Process post input event hook function after the internal history |
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986 // list has been updated. |
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987 |
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988 if (application::interactive ()) |
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989 octave_link::post_input_event (); |
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990 |
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991 return retval; |
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992 } |
9999
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993 |
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994 bool base_reader::reading_fcn_file (void) const |
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995 { |
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996 return m_lexer ? m_lexer->m_reading_fcn_file : false; |
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997 } |
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998 |
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999 bool base_reader::reading_classdef_file (void) const |
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1000 { |
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1001 return m_lexer ? m_lexer->m_reading_classdef_file : false; |
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1002 } |
9999
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1003 |
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1004 bool base_reader::reading_script_file (void) const |
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1005 { |
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1006 return m_lexer ? m_lexer->m_reading_script_file : false; |
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1007 } |
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1008 |
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1009 class |
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1010 terminal_reader : public base_reader |
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1011 { |
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1012 public: |
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1013 |
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1014 terminal_reader (base_lexer *lxr = nullptr) |
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1015 : base_reader (lxr) |
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1016 { } |
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1017 |
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1018 std::string get_input (bool& eof); |
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1019 |
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1020 std::string input_source (void) const { return s_in_src; } |
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1021 |
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1022 bool input_from_terminal (void) const { return true; } |
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1023 |
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1024 private: |
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1025 |
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1026 static const std::string s_in_src; |
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1027 }; |
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1028 |
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1029 class |
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1030 file_reader : public base_reader |
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1031 { |
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1032 public: |
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1033 |
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1034 file_reader (FILE *f_arg, base_lexer *lxr = nullptr) |
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1035 : base_reader (lxr), m_file (f_arg) { } |
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1036 |
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1037 std::string get_input (bool& eof); |
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1038 |
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1039 std::string input_source (void) const { return s_in_src; } |
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1040 |
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|
1041 bool input_from_file (void) const { return true; } |
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|
1042 |
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1043 private: |
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1044 |
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|
1045 FILE *m_file; |
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1046 |
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1047 static const std::string s_in_src; |
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1048 }; |
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|
1049 |
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|
1050 class |
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1051 eval_string_reader : public base_reader |
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1052 { |
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1053 public: |
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|
1054 |
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1055 eval_string_reader (const std::string& str, base_lexer *lxr = nullptr) |
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1056 : base_reader (lxr), m_eval_string (str) |
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1057 { } |
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1058 |
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1059 std::string get_input (bool& eof); |
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1060 |
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|
1061 std::string input_source (void) const { return s_in_src; } |
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1062 |
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1063 bool input_from_eval_string (void) const { return true; } |
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1064 |
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1065 private: |
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1066 |
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|
1067 std::string m_eval_string; |
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1068 |
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|
1069 static const std::string s_in_src; |
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1070 }; |
20739
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1071 |
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1072 input_reader::input_reader (base_lexer *lxr) |
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1073 : m_rep (new terminal_reader (lxr)) |
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1074 { } |
529 | 1075 |
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1076 input_reader::input_reader (FILE *file, base_lexer *lxr) |
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1077 : m_rep (new file_reader (file, lxr)) |
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|
1078 { } |
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|
1079 |
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|
1080 input_reader::input_reader (const std::string& str, base_lexer *lxr) |
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1081 : m_rep (new eval_string_reader (str, lxr)) |
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1082 { } |
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1083 |
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1084 const std::string base_reader::s_in_src ("invalid"); |
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1085 |
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1086 const std::string terminal_reader::s_in_src ("terminal"); |
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1087 |
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1088 std::string |
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1089 terminal_reader::get_input (bool& eof) |
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1090 { |
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1091 octave_quit (); |
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1092 |
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1093 eof = false; |
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1094 |
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1095 return octave_gets (eof); |
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1096 } |
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1097 |
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1098 const std::string file_reader::s_in_src ("file"); |
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1099 |
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1100 std::string |
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1101 file_reader::get_input (bool& eof) |
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1102 { |
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1103 octave_quit (); |
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1104 |
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1105 eof = false; |
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1106 |
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1107 std::string src_str = octave_fgets (m_file, eof); |
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1108 |
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1109 octave::input_system& input_sys |
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1110 = octave::__get_input_system__ ("get_input"); |
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1111 |
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1112 std::string mfile_encoding = input_sys.mfile_encoding (); |
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1113 |
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1114 std::string encoding |
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1115 = (mfile_encoding.compare ("system") == 0 |
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1116 ? octave_locale_charset_wrapper () : mfile_encoding); |
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1117 |
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1118 if (encoding.compare ("utf-8") == 0) |
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1119 { |
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1120 // Check for BOM and strip it |
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1121 if (src_str.compare (0, 3, "\xef\xbb\xbf") == 0) |
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1122 src_str.erase (0, 3); |
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1123 } |
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1124 else |
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1125 { |
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1126 // convert encoding to UTF-8 before returning string |
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1127 const char *src = src_str.c_str (); |
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1128 size_t srclen = src_str.length (); |
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1129 |
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1130 size_t length; |
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1131 uint8_t *utf8_str = nullptr; |
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1132 |
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1133 utf8_str = octave_u8_conv_from_encoding (encoding.c_str (), src, srclen, |
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1134 &length); |
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1135 |
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1136 if (! utf8_str) |
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1137 error ("file_reader::get_input: converting from codepage '%s' to UTF-8: %s", |
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1138 encoding.c_str (), std::strerror (errno)); |
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1139 |
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1140 octave::unwind_protect frame; |
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1141 frame.add_fcn (::free, static_cast<void *> (utf8_str)); |
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1142 |
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1143 src_str = std::string (reinterpret_cast<char *> (utf8_str), length); |
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1144 } |
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1145 |
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1146 return src_str; |
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1147 } |
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1148 |
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1149 const std::string eval_string_reader::s_in_src ("eval_string"); |
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1150 |
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1151 std::string |
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1152 eval_string_reader::get_input (bool& eof) |
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1153 { |
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1154 octave_quit (); |
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1155 |
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1156 eof = false; |
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1157 |
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1158 std::string retval; |
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1159 |
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1160 retval = m_eval_string; |
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1161 |
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1162 // Clear the eval string so that the next call will return |
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1163 // an empty character string with EOF = true. |
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1164 m_eval_string = ""; |
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1165 |
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1166 if (retval.empty ()) |
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1167 eof = true; |
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1168 |
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1169 return retval; |
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1170 } |
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1171 } |
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1172 |
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1173 DEFMETHOD (input, interp, args, nargout, |
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1174 doc: /* -*- texinfo -*- |
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1175 @deftypefn {} {@var{ans} =} input (@var{prompt}) |
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1176 @deftypefnx {} {@var{ans} =} input (@var{prompt}, "s") |
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1177 Print @var{prompt} and wait for user input. |
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1178 |
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1179 For example, |
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1180 |
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1181 @example |
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1182 input ("Pick a number, any number! ") |
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1183 @end example |
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1184 |
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1185 @noindent |
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1186 prints the prompt |
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1187 |
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1188 @example |
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1189 Pick a number, any number! |
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1190 @end example |
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1191 |
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1192 @noindent |
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1193 and waits for the user to enter a value. The string entered by the user |
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1194 is evaluated as an expression, so it may be a literal constant, a variable |
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1195 name, or any other valid Octave code. |
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1196 |
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1197 The number of return arguments, their size, and their class depend on the |
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1198 expression entered. |
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1199 |
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1200 If you are only interested in getting a literal string value, you can call |
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1201 @code{input} with the character string @qcode{"s"} as the second argument. |
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1202 This tells Octave to return the string entered by the user directly, without |
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1203 evaluating it first. |
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1204 |
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1205 Because there may be output waiting to be displayed by the pager, it is a |
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1206 good idea to always call @code{fflush (stdout)} before calling @code{input}. |
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1207 This will ensure that all pending output is written to the screen before |
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1208 your prompt. |
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1209 @seealso{yes_or_no, kbhit, pause, menu, listdlg} |
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1210 @end deftypefn */) |
529 | 1211 { |
1212 int nargin = args.length (); | |
1213 | |
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1214 if (nargin < 1 || nargin > 2) |
5823 | 1215 print_usage (); |
529 | 1216 |
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1217 octave::input_system& input_sys = interp.get_input_system (); |
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1218 |
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1219 return input_sys.get_user_input (args, std::max (nargout, 1)); |
529 | 1220 } |
1221 | |
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1222 DEFMETHOD (yes_or_no, interp, args, , |
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1223 doc: /* -*- texinfo -*- |
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1224 @deftypefn {} {@var{ans} =} yes_or_no ("@var{prompt}") |
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1225 Ask the user a yes-or-no question. |
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1226 |
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1227 Return logical true if the answer is yes or false if the answer is no. |
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1228 |
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1229 Takes one argument, @var{prompt}, which is the string to display when asking |
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1230 the question. @var{prompt} should end in a space; @code{yes-or-no} adds the |
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1231 string @samp{(yes or no) } to it. The user must confirm the answer with |
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1232 @key{RET} and can edit it until it has been confirmed. |
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1233 @seealso{input} |
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1234 @end deftypefn */) |
5640 | 1235 { |
1236 int nargin = args.length (); | |
1237 | |
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1238 if (nargin > 1) |
5823 | 1239 print_usage (); |
5640 | 1240 |
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1241 octave::input_system& input_sys = interp.get_input_system (); |
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1242 |
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1243 std::string prompt; |
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1244 |
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1245 if (nargin == 1) |
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1246 prompt = args(0).xstring_value ("yes_or_no: PROMPT must be a string"); |
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1247 |
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1248 return ovl (input_sys.yes_or_no (prompt)); |
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1249 } |
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1250 |
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1251 DEFMETHOD (keyboard, interp, args, , |
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1252 doc: /* -*- texinfo -*- |
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1253 @deftypefn {} {} keyboard () |
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1254 @deftypefnx {} {} keyboard ("@var{prompt}") |
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1255 Stop m-file execution and enter debug mode. |
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1256 |
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1257 When the @code{keyboard} function is executed, Octave prints a prompt and |
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1258 waits for user input. The input strings are then evaluated and the results |
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1259 are printed. This makes it possible to examine the values of variables |
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1260 within a function, and to assign new values if necessary. To leave the |
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1261 prompt and return to normal execution type @samp{return} or @samp{dbcont}. |
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1262 The @code{keyboard} function does not return an exit status. |
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1263 |
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1264 If @code{keyboard} is invoked without arguments, a default prompt of |
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1265 @samp{debug> } is used. |
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1266 @seealso{dbstop, dbcont, dbquit} |
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1267 @end deftypefn */) |
529 | 1268 { |
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1269 if (args.length () > 1) |
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1270 print_usage (); |
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1271 |
21743
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1272 octave::unwind_protect frame; |
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1273 |
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1274 octave::call_stack& cs = interp.get_call_stack (); |
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1275 |
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1276 frame.add_method (cs, &octave::call_stack::restore_frame, |
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1277 cs.current_frame ()); |
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1278 |
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1279 // Skip the frame assigned to the keyboard function. |
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1280 cs.goto_frame_relative (0); |
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1281 |
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1282 octave::tree_evaluator& tw = interp.get_evaluator (); |
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1283 |
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1284 tw.debug_mode (true); |
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1285 tw.quiet_breakpoint_flag (false); |
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1286 tw.current_frame (cs.current_frame ()); |
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1287 |
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1288 octave::input_system& input_sys = interp.get_input_system (); |
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1289 |
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1290 input_sys.keyboard (args); |
529 | 1291 |
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1292 return ovl (); |
529 | 1293 } |
1294 | |
2234 | 1295 DEFUN (completion_matches, args, nargout, |
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1296 doc: /* -*- texinfo -*- |
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1297 @deftypefn {} {} completion_matches (@var{hint}) |
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1298 Generate possible completions given @var{hint}. |
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1299 |
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1300 This function is provided for the benefit of programs like Emacs which |
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1301 might be controlling Octave and handling user input. The current |
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1302 command number is not incremented when this function is called. This is |
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1303 a feature, not a bug. |
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1304 @end deftypefn */) |
2234 | 1305 { |
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1306 if (args.length () != 1) |
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1307 print_usage (); |
2234 | 1308 |
20939
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1309 octave_value retval; |
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1310 |
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1311 std::string hint = args(0).string_value (); |
2234 | 1312 |
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1313 int n = 32; |
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1314 |
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1315 string_vector list (n); |
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1316 |
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1317 int k = 0; |
2234 | 1318 |
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1319 for (;;) |
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1320 { |
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1321 std::string cmd = generate_completion (hint, k); |
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1322 |
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1323 if (! cmd.empty ()) |
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1324 { |
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1325 if (k == n) |
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1326 { |
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1327 n *= 2; |
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changeset
|
1328 list.resize (n); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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10186
diff
changeset
|
1329 } |
2234 | 1330 |
20801
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eliminate return statements after calls to print_usage
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diff
changeset
|
1331 list[k++] = cmd; |
20555
f90c8372b7ba
eliminate many more simple uses of error_state
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20239
diff
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|
1332 } |
f90c8372b7ba
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diff
changeset
|
1333 else |
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diff
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|
1334 { |
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eliminate return statements after calls to print_usage
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|
1335 list.resize (k); |
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|
1336 break; |
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diff
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|
1337 } |
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|
1338 } |
20555
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eliminate many more simple uses of error_state
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|
1339 |
20801
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eliminate return statements after calls to print_usage
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|
1340 if (nargout > 0) |
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|
1341 { |
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|
1342 if (! list.empty ()) |
a542a9bf177e
eliminate return statements after calls to print_usage
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diff
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|
1343 retval = list; |
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|
1344 else |
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|
1345 retval = ""; |
2234 | 1346 } |
1347 else | |
20801
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|
1348 { |
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diff
changeset
|
1349 // We don't use string_vector::list_in_columns here |
a542a9bf177e
eliminate return statements after calls to print_usage
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diff
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|
1350 // because it will be easier for Emacs if the names |
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eliminate return statements after calls to print_usage
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|
1351 // appear in a single column. |
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eliminate return statements after calls to print_usage
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diff
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|
1352 |
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|
1353 int len = list.numel (); |
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|
1354 |
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|
1355 for (int i = 0; i < len; i++) |
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eliminate return statements after calls to print_usage
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|
1356 octave_stdout << list[i] << "\n"; |
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|
1357 } |
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|
1358 |
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changeset
|
1359 octave_completion_matches_called = true; |
2234 | 1360 |
1361 return retval; | |
1362 } | |
1363 | |
20239
48284e32530b
test: Add tests for 'echo' and 'completion_matches' builtins
Mike Miller <mtmiller@octave.org>
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diff
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|
1364 /* |
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diff
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|
1365 %!assert (ischar (completion_matches (""))) |
48284e32530b
test: Add tests for 'echo' and 'completion_matches' builtins
Mike Miller <mtmiller@octave.org>
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|
1366 %!assert (ischar (completion_matches ("a"))) |
48284e32530b
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|
1367 %!assert (ischar (completion_matches (" "))) |
48284e32530b
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Mike Miller <mtmiller@octave.org>
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diff
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|
1368 %!assert (isempty (completion_matches (" "))) |
48284e32530b
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Mike Miller <mtmiller@octave.org>
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diff
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|
1369 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("")))))) |
48284e32530b
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diff
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|
1370 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("a")))))) |
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|
1371 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("ab")))))) |
48284e32530b
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diff
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|
1372 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("abs")))))) |
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diff
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|
1373 %!assert (! any (strcmp ("abs", deblank (cellstr (completion_matches ("absa")))))) |
48284e32530b
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diff
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|
1374 |
48284e32530b
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diff
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|
1375 %!error completion_matches () |
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test: Add tests for 'echo' and 'completion_matches' builtins
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diff
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|
1376 %!error completion_matches (1, 2) |
48284e32530b
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diff
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|
1377 */ |
48284e32530b
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diff
changeset
|
1378 |
16879
cc3743a91652
Rename read_readline_init_file to readline_read_init_file.
Rik <rik@octave.org>
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16816
diff
changeset
|
1379 DEFUN (readline_read_init_file, args, , |
21966
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|
1380 doc: /* -*- texinfo -*- |
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|
1381 @deftypefn {} {} readline_read_init_file (@var{file}) |
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|
1382 Read the readline library initialization file @var{file}. |
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|
1383 |
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|
1384 If @var{file} is omitted, read the default initialization file |
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move docstrings in C++ files out of C strings and into comments
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|
1385 (normally @file{~/.inputrc}). |
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|
1386 |
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diff
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|
1387 @xref{Readline Init File, , , readline, GNU Readline Library}, |
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move docstrings in C++ files out of C strings and into comments
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|
1388 for details. |
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|
1389 @seealso{readline_re_read_init_file} |
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|
1390 @end deftypefn */) |
3189 | 1391 { |
1392 int nargin = args.length (); | |
1393 | |
20801
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|
1394 if (nargin > 1) |
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|
1395 print_usage (); |
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|
1396 |
3189 | 1397 if (nargin == 0) |
21748
176536b15d68
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John W. Eaton <jwe@octave.org>
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21743
diff
changeset
|
1398 octave::command_editor::read_init_file (); |
20801
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eliminate return statements after calls to print_usage
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diff
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|
1399 else |
3189 | 1400 { |
5872 | 1401 std::string file = args(0).string_value (); |
3189 | 1402 |
21748
176536b15d68
use namespace for command_editor and command_history classes
John W. Eaton <jwe@octave.org>
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diff
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|
1403 octave::command_editor::read_init_file (file); |
3189 | 1404 } |
1405 | |
20941
a4f5da7c5463
maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
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20940
diff
changeset
|
1406 return ovl (); |
3189 | 1407 } |
1408 | |
16880
1aebb613a5ac
Rename re_read_readline_init_file to readline_re_read_init_file.
Rik <rik@octave.org>
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diff
changeset
|
1409 DEFUN (readline_re_read_init_file, args, , |
21966
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|
1410 doc: /* -*- texinfo -*- |
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|
1411 @deftypefn {} {} readline_re_read_init_file () |
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|
1412 Re-read the last readline library initialization file that was read. |
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|
1413 |
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|
1414 @xref{Readline Init File, , , readline, GNU Readline Library}, |
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|
1415 for details. |
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|
1416 @seealso{readline_read_init_file} |
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|
1417 @end deftypefn */) |
7758
8e14a01ffe9f
input.cc (Fre_read_readline_init_file): new function
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|
1418 { |
20801
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|
1419 if (args.length () != 0) |
7758
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diff
changeset
|
1420 print_usage (); |
8e14a01ffe9f
input.cc (Fre_read_readline_init_file): new function
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diff
changeset
|
1421 |
21748
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changeset
|
1422 octave::command_editor::re_read_init_file (); |
20801
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|
1423 |
20941
a4f5da7c5463
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Rik <rik@octave.org>
parents:
20940
diff
changeset
|
1424 return ovl (); |
7758
8e14a01ffe9f
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John W. Eaton <jwe@octave.org>
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|
1425 } |
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diff
changeset
|
1426 |
16349
610617eb84d1
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diff
changeset
|
1427 static int |
610617eb84d1
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16347
diff
changeset
|
1428 internal_input_event_hook_fcn (void) |
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diff
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|
1429 { |
25407
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diff
changeset
|
1430 octave::input_system& input_sys |
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25402
diff
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|
1431 = octave::__get_input_system__ ("internal_input_event_hook_fcn"); |
16349
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|
1432 |
25407
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diff
changeset
|
1433 input_sys.run_input_event_hooks (); |
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25402
diff
changeset
|
1434 |
ab10403a0b50
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diff
changeset
|
1435 if (! input_sys.have_input_event_hooks ()) |
21748
176536b15d68
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21743
diff
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|
1436 octave::command_editor::remove_event_hook (internal_input_event_hook_fcn); |
16152
c48847a781d5
* input.cc (input_event_hook): Return 0.
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16151
diff
changeset
|
1437 |
c48847a781d5
* input.cc (input_event_hook): Return 0.
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diff
changeset
|
1438 return 0; |
3498 | 1439 } |
1440 | |
25407
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|
1441 DEFMETHOD (add_input_event_hook, interp, args, , |
ab10403a0b50
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|
1442 doc: /* -*- texinfo -*- |
21966
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|
1443 @deftypefn {} {@var{id} =} add_input_event_hook (@var{fcn}) |
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|
1444 @deftypefnx {} {@var{id} =} add_input_event_hook (@var{fcn}, @var{data}) |
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|
1445 Add the named function or function handle @var{fcn} to the list of functions |
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|
1446 to call periodically when Octave is waiting for input. |
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|
1447 |
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|
1448 The function should have the form |
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|
1449 |
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|
1450 @example |
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|
1451 @var{fcn} (@var{data}) |
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|
1452 @end example |
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|
1453 |
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|
1454 If @var{data} is omitted, Octave calls the function without any arguments. |
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|
1455 |
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changeset
|
1456 The returned identifier may be used to remove the function handle from the |
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|
1457 list of input hook functions. |
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|
1458 @seealso{remove_input_event_hook} |
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|
1459 @end deftypefn */) |
3498 | 1460 { |
1461 int nargin = args.length (); | |
1462 | |
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1463 if (nargin < 1 || nargin > 2) |
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1464 print_usage (); |
3498 | 1465 |
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1466 octave_value user_data; |
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1467 |
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1468 if (nargin == 2) |
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1469 user_data = args(1); |
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1470 |
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1471 octave::input_system& input_sys = interp.get_input_system (); |
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1472 |
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1473 hook_function hook_fcn (args(0), user_data); |
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1474 |
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|
1475 if (! input_sys.have_input_event_hooks ()) |
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1476 octave::command_editor::add_event_hook (internal_input_event_hook_fcn); |
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1477 |
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1478 input_sys.add_input_event_hook (hook_fcn); |
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|
1479 |
21127
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Rik <rik@octave.org>
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|
1480 return ovl (hook_fcn.id ()); |
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1481 } |
3498 | 1482 |
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1483 DEFMETHOD (remove_input_event_hook, interp, args, , |
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1484 doc: /* -*- texinfo -*- |
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1485 @deftypefn {} {} remove_input_event_hook (@var{name}) |
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1486 @deftypefnx {} {} remove_input_event_hook (@var{fcn_id}) |
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1487 Remove the named function or function handle with the given identifier |
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1488 from the list of functions to call periodically when Octave is waiting |
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1489 for input. |
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1490 @seealso{add_input_event_hook} |
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1491 @end deftypefn */) |
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1492 { |
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|
1493 int nargin = args.length (); |
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1494 |
20801
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|
1495 if (nargin < 1 || nargin > 2) |
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|
1496 print_usage (); |
16347
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|
1497 |
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|
1498 std::string hook_fcn_id = args(0).string_value ("remove_input_event_hook: argument not valid as a hook function name or id"); |
3498 | 1499 |
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1500 bool warn = (nargin < 2); |
3498 | 1501 |
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|
1502 octave::input_system& input_sys = interp.get_input_system (); |
3498 | 1503 |
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|
1504 if (! input_sys.remove_input_event_hook (hook_fcn_id) && warn) |
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1505 warning ("remove_input_event_hook: %s not found in list", |
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1506 hook_fcn_id.c_str ()); |
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1507 |
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|
1508 if (! input_sys.have_input_event_hooks ()) |
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|
1509 octave::command_editor::remove_event_hook (internal_input_event_hook_fcn); |
3498 | 1510 |
20941
a4f5da7c5463
maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
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|
1511 return ovl (); |
3498 | 1512 } |
1513 | |
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|
1514 DEFMETHOD (PS1, interp, args, nargout, |
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|
1515 doc: /* -*- texinfo -*- |
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1516 @deftypefn {} {@var{val} =} PS1 () |
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1517 @deftypefnx {} {@var{old_val} =} PS1 (@var{new_val}) |
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1518 @deftypefnx {} {} PS1 (@var{new_val}, "local") |
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1519 Query or set the primary prompt string. |
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|
1520 |
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|
1521 When executing interactively, Octave displays the primary prompt when it is |
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1522 ready to read a command. |
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|
1523 |
24595
5ed2e9248ee9
doc: Tweaks to use single quotes instead of double quotes (bug #52870).
Rik <rik@octave.org>
parents:
23219
diff
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|
1524 The default value of the primary prompt string is @qcode{'octave:\#> '}. |
21966
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1525 To change it, use a command like |
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|
1526 |
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|
1527 @example |
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1528 PS1 ("\\u@@\\H> ") |
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1529 @end example |
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|
1530 |
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|
1531 @noindent |
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1532 which will result in the prompt @samp{boris@@kremvax> } for the user |
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|
1533 @samp{boris} logged in on the host @samp{kremvax.kgb.su}. Note that two |
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|
1534 backslashes are required to enter a backslash into a double-quoted |
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|
1535 character string. @xref{Strings}. |
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|
1536 |
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|
1537 You can also use ANSI escape sequences if your terminal supports them. |
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|
1538 This can be useful for coloring the prompt. For example, |
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|
1539 |
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|
1540 @example |
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|
1541 PS1 ('\[\033[01;31m\]\s:\#> \[\033[0m\]') |
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1542 @end example |
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|
1543 |
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|
1544 @noindent |
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|
1545 will give the default Octave prompt a red coloring. |
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|
1546 |
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|
1547 When called from inside a function with the @qcode{"local"} option, the |
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|
1548 variable is changed locally for the function and any subroutines it calls. |
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1549 The original variable value is restored when exiting the function. |
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1550 @seealso{PS2, PS4} |
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|
1551 @end deftypefn */) |
5794 | 1552 { |
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|
1553 octave::input_system& input_sys = interp.get_input_system (); |
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|
1554 |
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|
1555 return input_sys.PS1 (args, nargout); |
5794 | 1556 } |
2181 | 1557 |
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|
1558 DEFMETHOD (PS2, interp, args, nargout, |
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|
1559 doc: /* -*- texinfo -*- |
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1560 @deftypefn {} {@var{val} =} PS2 () |
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|
1561 @deftypefnx {} {@var{old_val} =} PS2 (@var{new_val}) |
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1562 @deftypefnx {} {} PS2 (@var{new_val}, "local") |
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|
1563 Query or set the secondary prompt string. |
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|
1564 |
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|
1565 The secondary prompt is printed when Octave is expecting additional input to |
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|
1566 complete a command. For example, if you are typing a @code{for} loop that |
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|
1567 spans several lines, Octave will print the secondary prompt at the beginning |
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|
1568 of each line after the first. The default value of the secondary prompt |
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|
1569 string is @qcode{"> "}. |
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|
1570 |
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|
1571 When called from inside a function with the @qcode{"local"} option, the |
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|
1572 variable is changed locally for the function and any subroutines it calls. |
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1573 The original variable value is restored when exiting the function. |
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1574 @seealso{PS1, PS4} |
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|
1575 @end deftypefn */) |
5794 | 1576 { |
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|
1577 octave::input_system& input_sys = interp.get_input_system (); |
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|
1578 |
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|
1579 return input_sys.PS2 (args, nargout); |
5794 | 1580 } |
2181 | 1581 |
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|
1582 DEFMETHOD (completion_append_char, interp, args, nargout, |
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|
1583 doc: /* -*- texinfo -*- |
21966
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|
1584 @deftypefn {} {@var{val} =} completion_append_char () |
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1585 @deftypefnx {} {@var{old_val} =} completion_append_char (@var{new_val}) |
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1586 @deftypefnx {} {} completion_append_char (@var{new_val}, "local") |
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1587 Query or set the internal character variable that is appended to |
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1588 successful command-line completion attempts. |
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1589 |
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1590 The default value is @qcode{" "} (a single space). |
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1591 |
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1592 When called from inside a function with the @qcode{"local"} option, the |
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1593 variable is changed locally for the function and any subroutines it calls. |
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1594 The original variable value is restored when exiting the function. |
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1595 @end deftypefn */) |
5794 | 1596 { |
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1597 octave::input_system& input_sys = interp.get_input_system (); |
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1598 |
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1599 return input_sys.completion_append_char (args, nargout); |
5794 | 1600 } |
3019 | 1601 |
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1602 DEFMETHOD (__request_drawnow__, , args, , |
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1603 doc: /* -*- texinfo -*- |
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1604 @deftypefn {} {} __request_drawnow__ () |
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1605 @deftypefnx {} {} __request_drawnow__ (@var{flag}) |
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1606 Undocumented internal function. |
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1607 @end deftypefn */) |
6257 | 1608 { |
1609 int nargin = args.length (); | |
1610 | |
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1611 if (nargin > 1) |
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1612 print_usage (); |
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1613 |
6257 | 1614 if (nargin == 0) |
1615 Vdrawnow_requested = true; | |
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1616 else |
6257 | 1617 Vdrawnow_requested = args(0).bool_value (); |
1618 | |
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1619 return ovl (); |
6257 | 1620 } |
1621 | |
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1622 DEFMETHOD (__gud_mode__, interp, args, nargout, |
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1623 doc: /* -*- texinfo -*- |
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1624 @deftypefn {} {} __gud_mode__ () |
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1625 Undocumented internal function. |
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1626 @end deftypefn */) |
7294 | 1627 { |
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1628 octave::input_system& input_sys = interp.get_input_system (); |
20939
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1629 |
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1630 return input_sys.gud_mode (args, nargout); |
7294 | 1631 } |
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1632 |
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1633 DEFMETHOD (__mfile_encoding__, interp, args, nargout, |
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1634 doc: /* -*- texinfo -*- |
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1635 @deftypefn {} {@var{current_encoding} =} __mfile_encoding__ (@var{new_encoding}) |
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1636 Set and query the codepage that is used for reading .m files. |
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1637 @end deftypefn */) |
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1638 { |
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1639 octave::input_system& input_sys = interp.get_input_system (); |
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1640 |
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1641 return input_sys.mfile_encoding (args, nargout); |
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1642 } |
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1643 |
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1644 // Always define these functions. The macro is intended to allow the |
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1645 // declarations to be hidden, not so that Octave will not provide the |
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1646 // functions if they are requested. |
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1647 |
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1648 // #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
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1649 |
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1650 bool |
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1651 octave_yes_or_no (const std::string& prompt) |
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1652 { |
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1653 octave::input_system& input_sys |
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1654 = octave::__get_input_system__ ("set_default_prompts"); |
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1655 |
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1656 return input_sys.yes_or_no (prompt); |
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1657 } |
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1658 |
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1659 octave_value |
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1660 do_keyboard (const octave_value_list& args) |
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1661 { |
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1662 octave::input_system& input_sys |
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1663 = octave::__get_input_system__ ("do_keyboard"); |
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1664 |
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1665 return input_sys.keyboard (args); |
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1666 } |
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1667 |
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1668 void |
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1669 remove_input_event_hook_functions (void) |
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1670 { |
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1671 octave::input_system& input_sys |
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1672 = octave::__get_input_system__ ("remove_input_event_hook_functions"); |
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1673 |
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1674 input_sys.clear_input_event_hooks (); |
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1675 } |
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1676 |
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1677 // Fix things up so that input can come from the standard input. This |
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1678 // may need to become much more complicated, which is why it's in a |
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1679 // separate function. |
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1680 |
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1681 FILE * |
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1682 get_input_from_stdin (void) |
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1683 { |
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1684 octave::command_editor::set_input_stream (stdin); |
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1685 return octave::command_editor::get_input_stream (); |
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1686 } |
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1687 |
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1688 // #endif |