Mercurial > octave
annotate libinterp/corefcn/input.cc @ 27932:b018f553fd85
maint: Use Octave coding conventions in libinterp/
* __ftp__.cc, __ichol__.cc, call-stack.cc, error.h, event-manager.cc,
file-io.cc, gl-render.cc, graphics.cc, help.cc, input.cc, interpreter.cc,
load-path.cc, load-save.cc, ls-hdf5.cc, ls-hdf5.h, mex.cc, oct-hist.cc,
oct-stream.cc, sighandlers.h, stack-frame.cc, stack-frame.h, strfns.cc,
syminfo.cc, sysdep.cc, text-engine.h, url-handle-manager.h, urlwrite.cc,
xpow.cc, __init_fltk__.cc, __ode15__.cc, ccolamd.cc, colamd.cc, cdef-class.cc,
cdef-manager.cc, cdef-manager.h, cdef-method.cc, cdef-object.cc,
cdef-package.h, cdef-property.cc, ov-class.cc, ov-classdef.cc, ov-cx-sparse.cc,
ov-fcn-handle.cc, ov-fcn-inline.cc, ov-fcn.h, ov-java.cc, ov-typeinfo.h,
bp-table.cc, jit-ir.h, jit-typeinfo.h, pt-classdef.h, pt-eval.cc, pt-eval.h,
pt-idx.cc: Use Octave coding conventions in libinterp.
author | Rik <rik@octave.org> |
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date | Fri, 10 Jan 2020 17:25:12 -0800 |
parents | bd51beb6205e |
children | 376ca9022b7e f0a3f4527ba6 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1993-2020 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
1 | 25 |
2939 | 26 // Get command input interactively or from files. |
1 | 27 |
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28 #if defined (HAVE_CONFIG_H) |
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29 # include "config.h" |
1 | 30 #endif |
31 | |
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32 #include <cstdio> |
1343 | 33 #include <cstdlib> |
34 #include <cstring> | |
35 #include <cassert> | |
36 | |
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37 #include <algorithm> |
3503 | 38 #include <iostream> |
5765 | 39 #include <sstream> |
1728 | 40 #include <string> |
41 | |
2927 | 42 #include "cmd-edit.h" |
3189 | 43 #include "file-ops.h" |
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44 #include "iconv-wrappers.h" |
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45 #include "localcharset-wrapper.h" |
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46 #include "oct-string.h" |
4153 | 47 #include "quit.h" |
1755 | 48 #include "str-vec.h" |
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49 #include "uniconv-wrappers.h" |
1755 | 50 |
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51 #include "builtin-defun-decls.h" |
1352 | 52 #include "defun.h" |
1 | 53 #include "error.h" |
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54 #include "errwarn.h" |
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55 #include "event-manager.h" |
3016 | 56 #include "help.h" |
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57 #include "hook-fcn.h" |
1 | 58 #include "input.h" |
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59 #include "interpreter-private.h" |
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60 #include "interpreter.h" |
5832 | 61 #include "load-path.h" |
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62 #include "octave.h" |
1352 | 63 #include "oct-map.h" |
1742 | 64 #include "oct-hist.h" |
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65 #include "interpreter.h" |
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66 #include "event-manager.h" |
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67 #include "ovl.h" |
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68 #include "ov-fcn-handle.h" |
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69 #include "ov-usr-fcn.h" |
1 | 70 #include "pager.h" |
529 | 71 #include "parse.h" |
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72 #include "pt-eval.h" |
3805 | 73 #include "pt-stmt.h" |
1352 | 74 #include "sighandlers.h" |
1114 | 75 #include "sysdep.h" |
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76 #include "interpreter.h" |
3098 | 77 #include "unwind-prot.h" |
1352 | 78 #include "utils.h" |
79 #include "variables.h" | |
529 | 80 |
3165 | 81 // The time we last printed a prompt. |
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82 octave::sys::time Vlast_prompt_time = 0.0; |
3165 | 83 |
3804 | 84 // TRUE after a call to completion_matches. |
2299 | 85 bool octave_completion_matches_called = false; |
86 | |
6257 | 87 // TRUE if the plotting system has requested a call to drawnow at |
88 // the next user prompt. | |
7409 | 89 bool Vdrawnow_requested = false; |
6257 | 90 |
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91 // TRUE if we are recording line numbers in a source file. |
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92 // Always true except when debugging and taking input directly from |
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93 // the terminal. |
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94 bool Vtrack_line_num = true; |
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95 |
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96 namespace octave |
6257 | 97 { |
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98 static std::string |
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99 quoting_filename (const std::string& text, int, char quote) |
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100 { |
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101 if (quote) |
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102 return text; |
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103 else |
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104 return ("'" + text); |
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105 } |
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106 |
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107 // Try to parse a partial command line in reverse, excluding trailing TEXT. |
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108 // If it appears a variable has been indexed by () or {}, |
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109 // return that expression, |
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110 // to allow autocomplete of field names of arrays of structures. |
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111 static std::string |
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112 find_indexed_expression (const std::string& text) |
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113 { |
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114 std::string line = command_editor::get_line_buffer (); |
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115 |
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116 int pos = line.length () - text.length (); |
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117 int curly_count = 0; |
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118 int paren_count = 0; |
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119 |
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120 int last = --pos; |
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121 |
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122 while (pos >= 0 && (line[pos] == ')' || line[pos] == '}')) |
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123 { |
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124 if (line[pos] == ')') |
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125 paren_count++; |
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126 else |
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127 curly_count++; |
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128 |
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129 while (curly_count + paren_count > 0 && --pos >= 0) |
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130 { |
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131 if (line[pos] == ')') |
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132 paren_count++; |
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133 else if (line[pos] == '(') |
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134 paren_count--; |
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135 else if (line[pos] == '}') |
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136 curly_count++; |
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137 else if (line[pos] == '{') |
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138 curly_count--; |
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139 } |
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140 |
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141 while (--pos >= 0 && line[pos] == ' ') |
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142 ; |
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143 } |
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144 |
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145 while (pos >= 0 && (isalnum (line[pos]) || line[pos] == '_')) |
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146 pos--; |
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147 |
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148 if (++pos >= 0) |
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149 return (line.substr (pos, last + 1 - pos)); |
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150 else |
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151 return std::string (); |
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152 } |
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153 |
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154 static string_vector |
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155 generate_struct_completions (const std::string& text, |
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156 std::string& prefix, std::string& hint) |
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157 { |
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158 string_vector names; |
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159 |
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160 size_t pos = text.rfind ('.'); |
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161 bool array = false; |
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162 |
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163 if (pos != std::string::npos) |
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164 { |
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165 if (pos == text.length ()) |
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166 hint = ""; |
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167 else |
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168 hint = text.substr (pos+1); |
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169 |
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170 prefix = text.substr (0, pos); |
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171 |
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172 if (prefix == "") |
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173 { |
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174 array = true; |
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175 prefix = find_indexed_expression (text); |
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176 } |
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177 |
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178 std::string base_name = prefix; |
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179 |
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180 pos = base_name.find_first_of ("{(. "); |
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181 |
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182 if (pos != std::string::npos) |
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183 base_name = base_name.substr (0, pos); |
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184 |
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185 interpreter& interp |
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186 = __get_interpreter__ ("generate_struct_completions"); |
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187 |
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188 if (interp.is_variable (base_name)) |
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189 { |
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190 int parse_status; |
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191 |
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192 error_system& es = interp.get_error_system (); |
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193 |
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194 unwind_protect frame; |
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195 |
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196 frame.add_method (es, &error_system::set_discard_warning_messages, |
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197 es.discard_warning_messages ()); |
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198 |
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199 es.discard_warning_messages (true); |
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200 |
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201 try |
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202 { |
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203 octave_value tmp |
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204 = interp.eval_string (prefix, true, parse_status); |
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205 |
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206 frame.run (); |
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207 |
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208 if (tmp.is_defined () |
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209 && (tmp.isstruct () || tmp.isjava () || tmp.is_classdef_object ())) |
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210 names = tmp.map_keys (); |
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211 } |
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212 catch (const execution_exception&) |
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213 { |
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214 interp.recover_from_exception (); |
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215 } |
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216 } |
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217 } |
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218 |
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219 // Undo look-back that found the array expression, |
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220 // but insert an extra "." to distinguish from the non-struct case. |
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221 if (array) |
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222 prefix = "."; |
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223 |
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224 return names; |
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225 } |
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226 |
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227 // FIXME: this will have to be much smarter to work "correctly". |
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228 static bool |
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229 looks_like_struct (const std::string& text, char prev_char) |
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230 { |
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231 bool retval = (! text.empty () |
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232 && (text != "." || prev_char == ')' || prev_char == '}') |
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233 && text.find_first_of (sys::file_ops::dir_sep_chars ()) == std::string::npos |
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234 && text.find ("..") == std::string::npos |
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235 && text.rfind ('.') != std::string::npos); |
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236 |
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237 return retval; |
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238 } |
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239 |
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240 // FIXME: make this generate filenames when appropriate. |
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241 |
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242 static string_vector |
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243 generate_possible_completions (const std::string& text, std::string& prefix, |
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244 std::string& hint, bool& deemed_struct) |
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245 { |
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246 string_vector names; |
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247 |
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248 prefix = ""; |
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249 |
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250 char prev_char = command_editor::get_prev_char (text.length ()); |
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251 deemed_struct = looks_like_struct (text, prev_char); |
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252 |
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253 if (deemed_struct) |
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254 names = generate_struct_completions (text, prefix, hint); |
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255 else |
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256 names = make_name_list (); |
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257 |
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258 // Sort and remove duplicates. |
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259 |
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260 names.sort (true); |
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261 |
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262 return names; |
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263 } |
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264 |
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265 static bool |
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266 is_completing_dirfns (void) |
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267 { |
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268 static std::string dirfns_commands[] = {"cd", "isfile", "isfolder", "ls"}; |
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269 static const size_t dirfns_commands_length = 4; |
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270 |
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271 bool retval = false; |
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272 |
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273 std::string line = command_editor::get_line_buffer (); |
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274 |
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275 for (size_t i = 0; i < dirfns_commands_length; i++) |
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276 { |
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277 int index = line.find (dirfns_commands[i] + ' '); |
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278 |
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279 if (index == 0) |
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280 { |
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281 retval = true; |
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282 break; |
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283 } |
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284 } |
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285 |
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286 return retval; |
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287 } |
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288 |
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289 static std::string |
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290 generate_completion (const std::string& text, int state) |
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291 { |
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292 std::string retval; |
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293 |
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294 static std::string prefix; |
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295 static std::string hint; |
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296 |
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297 static size_t hint_len = 0; |
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298 |
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299 static int list_index = 0; |
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300 static int name_list_len = 0; |
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301 static int name_list_total_len = 0; |
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302 static string_vector name_list; |
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303 static string_vector file_name_list; |
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304 |
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305 static int matches = 0; |
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306 |
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307 if (state == 0) |
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308 { |
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309 list_index = 0; |
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310 |
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311 prefix = ""; |
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312 |
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313 hint = text; |
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314 |
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315 // No reason to display symbols while completing a |
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316 // file/directory operation. |
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317 |
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318 bool deemed_struct = false; |
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319 |
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320 if (is_completing_dirfns ()) |
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321 name_list = string_vector (); |
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322 else |
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323 name_list = generate_possible_completions (text, prefix, hint, |
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324 deemed_struct); |
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325 |
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326 name_list_len = name_list.numel (); |
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327 |
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328 // If the line was something like "a{1}." then text = "." but |
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329 // we don't want to expand all the . files. |
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330 if (! deemed_struct) |
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331 { |
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332 |
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333 file_name_list = command_editor::generate_filename_completions (text); |
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334 |
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335 name_list.append (file_name_list); |
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336 |
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337 } |
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338 |
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339 name_list_total_len = name_list.numel (); |
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340 |
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341 hint_len = hint.length (); |
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342 |
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343 matches = 0; |
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344 |
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345 for (int i = 0; i < name_list_len; i++) |
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346 if (hint == name_list[i].substr (0, hint_len)) |
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347 matches++; |
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348 } |
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349 |
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350 if (name_list_total_len > 0 && matches > 0) |
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351 { |
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352 while (list_index < name_list_total_len) |
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353 { |
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354 std::string name = name_list[list_index]; |
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355 |
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356 list_index++; |
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357 |
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358 if (hint == name.substr (0, hint_len)) |
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359 { |
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360 // Special case: array reference forces prefix="." |
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361 // in generate_struct_completions () |
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362 if (list_index <= name_list_len && ! prefix.empty ()) |
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363 retval = (prefix == "." ? "" : prefix) + '.' + name; |
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364 else |
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365 retval = name; |
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366 |
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367 char prev_char = |
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368 command_editor::get_prev_char (text.length ()); |
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369 |
27101
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370 if (matches == 1 && looks_like_struct (retval, prev_char)) |
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371 { |
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372 // Don't append anything, since we don't know |
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373 // whether it should be '(' or '.'. |
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374 |
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375 command_editor::set_completion_append_character ('\0'); |
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376 } |
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377 else |
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378 { |
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379 input_system& input_sys |
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380 = __get_input_system__ ("generate_completion"); |
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381 |
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382 command_editor::set_completion_append_character |
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383 (input_sys.completion_append_char ()); |
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384 } |
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385 |
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386 break; |
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387 } |
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388 } |
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389 } |
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390 |
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391 return retval; |
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392 } |
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393 |
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394 // Use literal "octave" in default setting for PS1 instead of |
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395 // "\\s" to avoid setting the prompt to "octave.exe" or |
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396 // "octave-gui", etc. |
6257 | 397 |
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398 input_system::input_system (interpreter& interp) |
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399 : m_interpreter (interp), m_PS1 (R"(octave:\#> )"), m_PS2 ("> "), |
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400 m_completion_append_char (' '), m_gud_mode (false), |
27272
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401 m_mfile_encoding ("system"), m_last_debugging_command ("\n"), |
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402 m_input_event_hook_functions () |
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403 { |
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404 } |
22171
0a4c5a90f286
Allow tab completion of arrays of structures.
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405 |
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406 void input_system::initialize (bool line_editing) |
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407 { |
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408 // Force default line editor if we don't want readline editing. |
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409 if (! line_editing) |
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410 { |
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411 command_editor::force_default_editor (); |
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412 return; |
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413 } |
6257 | 414 |
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415 // If we are using readline, this allows conditional parsing of the |
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416 // .inputrc file. |
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417 |
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418 command_editor::set_name ("Octave"); |
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419 |
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420 // FIXME: this needs to include a comma too, but that |
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421 // causes trouble for the new struct element completion code. |
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422 |
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423 static const char *s = "\t\n !\"\'*+-/:;<=>(){}[\\]^`~"; |
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424 |
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425 command_editor::set_basic_word_break_characters (s); |
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426 |
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427 command_editor::set_completer_word_break_characters (s); |
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428 |
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429 command_editor::set_basic_quote_characters (R"(")"); |
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430 |
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431 command_editor::set_filename_quote_characters (" \t\n\\\"'@<>=;|&()#$`?*[!:{"); |
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432 |
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433 command_editor::set_completer_quote_characters (R"('")"); |
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434 |
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435 command_editor::set_completion_function (generate_completion); |
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436 |
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437 command_editor::set_quoting_function (quoting_filename); |
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438 } |
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439 |
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440 octave_value |
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441 input_system::PS1 (const octave_value_list& args, int nargout) |
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442 { |
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443 return set_internal_variable (m_PS1, args, nargout, "PS1"); |
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444 } |
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445 |
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446 octave_value |
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447 input_system::PS2 (const octave_value_list& args, int nargout) |
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448 { |
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449 return set_internal_variable (m_PS2, args, nargout, "PS2"); |
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450 } |
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451 |
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452 octave_value |
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453 input_system::completion_append_char (const octave_value_list& args, |
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454 int nargout) |
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455 { |
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456 return set_internal_variable (m_completion_append_char, args, nargout, |
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457 "completion_append_char"); |
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458 } |
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459 |
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460 octave_value |
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461 input_system::gud_mode (const octave_value_list& args, int nargout) |
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462 { |
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463 return set_internal_variable (m_gud_mode, args, nargout, "__gud_mode__"); |
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464 } |
269 | 465 |
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466 octave_value |
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467 input_system::mfile_encoding (const octave_value_list& args, int nargout) |
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468 { |
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469 // Save current value in case there is an error in the additional |
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470 // validation below. |
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471 |
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472 std::string saved_encoding = m_mfile_encoding; |
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473 |
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474 // We must pass the actual variable to change here for temporary |
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475 // "local" settings to work properly. |
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476 |
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477 octave_value retval |
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478 = set_internal_variable (m_mfile_encoding, args, nargout, |
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479 "__mfile_encoding__"); |
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480 |
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481 // Additional validation if the encoding has changed. |
1358 | 482 |
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483 if (m_mfile_encoding != saved_encoding) |
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484 { |
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485 if (m_mfile_encoding.empty ()) |
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486 { |
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487 m_mfile_encoding = "system"; |
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488 } |
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489 else |
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490 { |
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491 std::transform (m_mfile_encoding.begin (), |
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492 m_mfile_encoding.end (), |
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493 m_mfile_encoding.begin (), ::tolower); |
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495 std::string encoding = (m_mfile_encoding.compare ("system") == 0) |
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496 ? octave_locale_charset_wrapper () : m_mfile_encoding; |
3933 | 497 |
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498 // Check for valid encoding name. |
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499 void *codec |
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500 = octave_iconv_open_wrapper (encoding.c_str (), "utf-8"); |
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501 |
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502 if (codec == reinterpret_cast<void *> (-1)) |
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503 { |
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504 m_mfile_encoding = saved_encoding; |
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505 if (errno == EINVAL) |
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506 error ("__mfile_encoding__: conversion from encoding '%s' " |
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507 "not supported", encoding.c_str ()); |
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508 else |
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509 error ("__mfile_encoding__: error %d opening encoding '%s'.", |
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510 errno, encoding.c_str ()); |
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511 } |
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512 else |
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513 octave_iconv_close_wrapper (codec); |
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514 } |
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515 |
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516 } |
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517 |
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518 // Synchronize the related gui preference for editor encoding |
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519 feval ("__event_manager_gui_preference__", |
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520 ovl ("editor/default_encoding", m_mfile_encoding)); |
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521 |
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522 return retval; |
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523 } |
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524 |
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525 bool input_system::yes_or_no (const std::string& prompt) |
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526 { |
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527 std::string prompt_string = prompt + "(yes or no) "; |
6367 | 528 |
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529 while (1) |
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530 { |
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531 bool eof = false; |
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532 |
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533 std::string input_buf = interactive_input (prompt_string, eof); |
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535 if (input_buf == "yes") |
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536 return true; |
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537 else if (input_buf == "no") |
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538 return false; |
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539 else |
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540 message (nullptr, "Please answer yes or no."); |
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541 } |
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542 } |
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543 |
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544 std::string input_system::interactive_input (const std::string& s, bool& eof) |
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545 { |
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546 Vlast_prompt_time.stamp (); |
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547 |
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548 if (Vdrawnow_requested && m_interpreter.interactive ()) |
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549 { |
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550 bool eval_error = false; |
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552 try |
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553 { |
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554 Fdrawnow (m_interpreter); |
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555 } |
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556 catch (const execution_exception& e) |
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557 { |
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558 eval_error = true; |
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559 |
27471 | 560 m_interpreter.handle_exception (e); |
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561 } |
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562 |
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563 flush_stdout (); |
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564 |
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565 // We set Vdrawnow_requested to false even if there is an error in |
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566 // drawnow so that the error doesn't reappear at every prompt. |
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567 |
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568 Vdrawnow_requested = false; |
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569 |
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570 if (eval_error) |
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571 return "\n"; |
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572 } |
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573 |
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574 return gnu_readline (s, eof); |
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575 } |
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576 |
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577 // If the user simply hits return, this will produce an empty matrix. |
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579 octave_value_list |
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580 input_system::get_user_input (const octave_value_list& args, int nargout) |
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581 { |
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582 octave_value_list retval; |
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583 |
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584 int read_as_string = 0; |
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585 |
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586 if (args.length () == 2) |
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587 read_as_string++; |
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588 |
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589 std::string prompt = args(0).xstring_value ("input: unrecognized argument"); |
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590 |
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591 output_system& output_sys = m_interpreter.get_output_system (); |
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592 |
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593 output_sys.reset (); |
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594 |
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595 octave_diary << prompt; |
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596 |
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597 bool eof = false; |
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598 |
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599 std::string input_buf = interactive_input (prompt.c_str (), eof); |
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600 |
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601 if (input_buf.empty ()) |
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602 error ("input: reading user-input failed!"); |
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603 |
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604 size_t len = input_buf.length (); |
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605 |
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606 octave_diary << input_buf; |
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607 |
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608 if (input_buf[len - 1] != '\n') |
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609 octave_diary << "\n"; |
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610 |
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611 if (read_as_string) |
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612 { |
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613 // FIXME: fix gnu_readline and octave_gets instead! |
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614 if (input_buf.length () == 1 && input_buf[0] == '\n') |
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615 retval(0) = ""; |
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616 else |
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617 retval(0) = input_buf; |
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618 } |
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619 else |
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620 { |
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621 int parse_status = 0; |
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622 |
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623 retval |
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624 = m_interpreter.eval_string (input_buf, true, parse_status, nargout); |
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625 |
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626 tree_evaluator& tw = m_interpreter.get_evaluator (); |
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627 |
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628 if (! tw.in_debug_repl () && retval.empty ()) |
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629 retval(0) = Matrix (); |
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630 } |
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631 |
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632 return retval; |
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633 } |
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634 |
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635 bool input_system::have_input_event_hooks (void) const |
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636 { |
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637 return ! m_input_event_hook_functions.empty (); |
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638 } |
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639 |
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640 void input_system::add_input_event_hook (const hook_function& hook_fcn) |
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641 { |
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642 m_input_event_hook_functions.insert (hook_fcn.id (), hook_fcn); |
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643 } |
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644 |
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645 bool input_system::remove_input_event_hook (const std::string& hook_fcn_id) |
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646 { |
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647 hook_function_list::iterator p |
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648 = m_input_event_hook_functions.find (hook_fcn_id); |
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649 |
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650 if (p == m_input_event_hook_functions.end ()) |
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651 return false; |
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652 |
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653 m_input_event_hook_functions.erase (p); |
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654 return true; |
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655 } |
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656 |
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657 void input_system::clear_input_event_hooks (void) |
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658 { |
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659 m_input_event_hook_functions.clear (); |
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660 } |
269 | 661 |
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662 void input_system::run_input_event_hooks (void) |
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663 { |
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664 m_input_event_hook_functions.run (); |
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665 } |
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666 |
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667 std::string |
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668 input_system::gnu_readline (const std::string& s, bool& eof) const |
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669 { |
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670 octave_quit (); |
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671 |
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672 eof = false; |
8658
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673 |
27102
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674 std::string retval = command_editor::readline (s, eof); |
25407
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675 |
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676 if (! eof && retval.empty ()) |
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677 retval = "\n"; |
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678 |
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679 return retval; |
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680 } |
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diff
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681 |
27527
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refactor input_reader class and its use in lexer
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682 std::string base_reader::octave_gets (const std::string& prompt, bool& eof) |
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683 { |
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684 octave_quit (); |
5142 | 685 |
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686 eof = false; |
16097
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improve end of file handling for lexer input
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|
687 |
23061
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688 std::string retval; |
1 | 689 |
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690 // Process pre input event hook function prior to flushing output and |
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691 // printing the prompt. |
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|
692 |
27502
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693 tree_evaluator& tw = m_interpreter.get_evaluator (); |
27037
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make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
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|
694 |
27502
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John W. Eaton <jwe@octave.org>
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changeset
|
695 event_manager& evmgr = m_interpreter.get_event_manager (); |
27261
dccdc3b001a2
eliminate static functions from octave_link class
John W. Eaton <jwe@octave.org>
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27200
diff
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|
696 |
27502
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697 if (m_interpreter.interactive ()) |
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698 { |
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|
699 if (! tw.in_debug_repl ()) |
27263
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27261
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|
700 evmgr.exit_debugger_event (); |
16438
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use signals instead of event queue for entering/leaving debug mode
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16433
diff
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|
701 |
27263
99aa1bcb8848
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John W. Eaton <jwe@octave.org>
parents:
27261
diff
changeset
|
702 evmgr.pre_input_event (); |
16468
0f143f68078d
use signal/slot for updating workspace instead of using event listener
John W. Eaton <jwe@octave.org>
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16438
diff
changeset
|
703 |
27263
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John W. Eaton <jwe@octave.org>
parents:
27261
diff
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|
704 evmgr.set_workspace (); |
23061
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
705 } |
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diff
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|
706 |
23061
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diff
changeset
|
707 bool history_skip_auto_repeated_debugging_command = false; |
8841
c74389115610
auto repeat for debugging commands
John W. Eaton <jwe@octave.org>
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8749
diff
changeset
|
708 |
27502
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
John W. Eaton <jwe@octave.org>
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diff
changeset
|
709 input_system& input_sys = m_interpreter.get_input_system (); |
25407
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new input_system class to manage user input for the interpreter
John W. Eaton <jwe@octave.org>
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|
710 |
23696
08036a7f3660
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John W. Eaton <jwe@octave.org>
parents:
23694
diff
changeset
|
711 pipe_handler_error_count = 0; |
16198
2c5c538be353
clean up input.cc and eliminate ff_instream global variable
John W. Eaton <jwe@octave.org>
parents:
16195
diff
changeset
|
712 |
27502
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
John W. Eaton <jwe@octave.org>
parents:
27474
diff
changeset
|
713 output_system& output_sys = m_interpreter.get_output_system (); |
1755 | 714 |
25435
a52e6fb674b1
eliminate some singletons and static & global variables
John W. Eaton <jwe@octave.org>
parents:
25407
diff
changeset
|
715 output_sys.reset (); |
2618 | 716 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
717 octave_diary << prompt; |
1 | 718 |
25407
ab10403a0b50
new input_system class to manage user input for the interpreter
John W. Eaton <jwe@octave.org>
parents:
25402
diff
changeset
|
719 retval = input_sys.interactive_input (prompt, eof); |
581 | 720 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
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diff
changeset
|
721 // There is no need to update the load_path cache if there is no |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
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diff
changeset
|
722 // user input. |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
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diff
changeset
|
723 if (retval != "\n" |
aedc662896a3
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
724 && retval.find_first_not_of (" \t\n\r") != std::string::npos) |
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move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
725 { |
27502
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
John W. Eaton <jwe@octave.org>
parents:
27474
diff
changeset
|
726 load_path& lp = m_interpreter.get_load_path (); |
23438
d24d01273bd0
eliminate load-path singleton
John W. Eaton <jwe@octave.org>
parents:
23433
diff
changeset
|
727 |
d24d01273bd0
eliminate load-path singleton
John W. Eaton <jwe@octave.org>
parents:
23433
diff
changeset
|
728 lp.update (); |
8841
c74389115610
auto repeat for debugging commands
John W. Eaton <jwe@octave.org>
parents:
8749
diff
changeset
|
729 |
27037
8408acb7ca4f
make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents:
26884
diff
changeset
|
730 if (tw.in_debug_repl ()) |
25407
ab10403a0b50
new input_system class to manage user input for the interpreter
John W. Eaton <jwe@octave.org>
parents:
25402
diff
changeset
|
731 input_sys.last_debugging_command (retval); |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
732 else |
25407
ab10403a0b50
new input_system class to manage user input for the interpreter
John W. Eaton <jwe@octave.org>
parents:
25402
diff
changeset
|
733 input_sys.last_debugging_command ("\n"); |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
734 } |
27037
8408acb7ca4f
make dbup/dbdown work again (bug #56020)
John W. Eaton <jwe@octave.org>
parents:
26884
diff
changeset
|
735 else if (tw.in_debug_repl ()) |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
736 { |
25407
ab10403a0b50
new input_system class to manage user input for the interpreter
John W. Eaton <jwe@octave.org>
parents:
25402
diff
changeset
|
737 retval = input_sys.last_debugging_command (); |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
738 history_skip_auto_repeated_debugging_command = true; |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
739 } |
1 | 740 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
741 if (retval != "\n") |
aedc662896a3
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John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
742 { |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
743 if (! history_skip_auto_repeated_debugging_command) |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
744 { |
23696
08036a7f3660
remove octave:: namespace tag from symbols used inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
23694
diff
changeset
|
745 if (command_history::add (retval)) |
27529
886df2049d81
only increment command number when complete block of code is parsed
John W. Eaton <jwe@octave.org>
parents:
27527
diff
changeset
|
746 evmgr.append_history (retval); |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
747 } |
1 | 748 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
749 octave_diary << retval; |
3176 | 750 |
26061
cb3ead3cf859
avoid assertion failure with -D_GLIBCXX_ASSERTIONS
Orion Poplawski <orion@cora.nwra.com>
parents:
25054
diff
changeset
|
751 if (! retval.empty () && retval.back () != '\n') |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
752 octave_diary << "\n"; |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
753 } |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
754 else |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
755 octave_diary << "\n"; |
581 | 756 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
757 // Process post input event hook function after the internal history |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
758 // list has been updated. |
9476 | 759 |
27502
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
John W. Eaton <jwe@octave.org>
parents:
27474
diff
changeset
|
760 if (m_interpreter.interactive ()) |
27263
99aa1bcb8848
rename octave_link and octave_link_events classes, move inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
27261
diff
changeset
|
761 evmgr.post_input_event (); |
16349
610617eb84d1
provide pre- and post-input hook functions
John W. Eaton <jwe@octave.org>
parents:
16347
diff
changeset
|
762 |
23061
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
763 return retval; |
aedc662896a3
move input reader classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
764 } |
1 | 765 |
24732
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
766 class |
f079a0856321
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John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
767 terminal_reader : public base_reader |
f079a0856321
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John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
768 { |
f079a0856321
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John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
769 public: |
f079a0856321
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John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
770 |
27502
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
John W. Eaton <jwe@octave.org>
parents:
27474
diff
changeset
|
771 terminal_reader (interpreter& interp) |
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
John W. Eaton <jwe@octave.org>
parents:
27474
diff
changeset
|
772 : base_reader (interp) |
24732
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
773 { } |
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
774 |
27527
73be3c628eac
refactor input_reader class and its use in lexer
John W. Eaton <jwe@octave.org>
parents:
27502
diff
changeset
|
775 std::string get_input (const std::string& prompt, bool& eof); |
24732
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
776 |
24833
7c88cf242111
use m_ prefix for data members in more classes
John W. Eaton <jwe@octave.org>
parents:
24732
diff
changeset
|
777 std::string input_source (void) const { return s_in_src; } |
24732
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
778 |
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
779 bool input_from_terminal (void) const { return true; } |
f079a0856321
move internal input reader classes out of header file
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parents:
24597
diff
changeset
|
780 |
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
781 private: |
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
782 |
24833
7c88cf242111
use m_ prefix for data members in more classes
John W. Eaton <jwe@octave.org>
parents:
24732
diff
changeset
|
783 static const std::string s_in_src; |
24732
f079a0856321
move internal input reader classes out of header file
John W. Eaton <jwe@octave.org>
parents:
24597
diff
changeset
|
784 }; |
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|
785 |
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|
786 class |
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|
787 file_reader : public base_reader |
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788 { |
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|
789 public: |
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|
790 |
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diff
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|
791 file_reader (interpreter& interp, FILE *f_arg) |
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in base_reader, store reference to interpreter instead of lexer
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792 : base_reader (interp), m_file (f_arg) { } |
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|
793 |
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diff
changeset
|
794 std::string get_input (const std::string& prompt, bool& eof); |
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|
795 |
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|
796 std::string input_source (void) const { return s_in_src; } |
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|
797 |
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|
798 bool input_from_file (void) const { return true; } |
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diff
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|
799 |
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diff
changeset
|
800 private: |
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|
801 |
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7c88cf242111
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diff
changeset
|
802 FILE *m_file; |
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diff
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|
803 |
24833
7c88cf242111
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diff
changeset
|
804 static const std::string s_in_src; |
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|
805 }; |
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diff
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|
806 |
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diff
changeset
|
807 class |
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changeset
|
808 eval_string_reader : public base_reader |
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|
809 { |
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|
810 public: |
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|
811 |
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John W. Eaton <jwe@octave.org>
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changeset
|
812 eval_string_reader (interpreter& interp, const std::string& str) |
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
John W. Eaton <jwe@octave.org>
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changeset
|
813 : base_reader (interp), m_eval_string (str) |
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|
814 { } |
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changeset
|
815 |
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John W. Eaton <jwe@octave.org>
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|
816 std::string get_input (const std::string& prompt, bool& eof); |
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|
817 |
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|
818 std::string input_source (void) const { return s_in_src; } |
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|
819 |
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changeset
|
820 bool input_from_eval_string (void) const { return true; } |
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|
821 |
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|
822 private: |
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diff
changeset
|
823 |
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diff
changeset
|
824 std::string m_eval_string; |
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|
825 |
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|
826 static const std::string s_in_src; |
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|
827 }; |
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|
828 |
27502
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changeset
|
829 input_reader::input_reader (interpreter& interp) |
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
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|
830 : m_rep (new terminal_reader (interp)) |
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|
831 { } |
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|
832 |
27502
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John W. Eaton <jwe@octave.org>
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diff
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|
833 input_reader::input_reader (interpreter& interp, FILE *file) |
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in base_reader, store reference to interpreter instead of lexer
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|
834 : m_rep (new file_reader (interp, file)) |
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|
835 { } |
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|
836 |
27502
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John W. Eaton <jwe@octave.org>
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changeset
|
837 input_reader::input_reader (interpreter& interp, const std::string& str) |
f62f1170ad98
in base_reader, store reference to interpreter instead of lexer
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|
838 : m_rep (new eval_string_reader (interp, str)) |
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diff
changeset
|
839 { } |
17731
f79bf671a493
eliminate global LEXER variable
John W. Eaton <jwe@octave.org>
parents:
17323
diff
changeset
|
840 |
24833
7c88cf242111
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|
841 const std::string base_reader::s_in_src ("invalid"); |
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|
842 |
24833
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|
843 const std::string terminal_reader::s_in_src ("terminal"); |
16195
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|
844 |
23061
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diff
changeset
|
845 std::string |
27527
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diff
changeset
|
846 terminal_reader::get_input (const std::string& prompt, bool& eof) |
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|
847 { |
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John W. Eaton <jwe@octave.org>
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changeset
|
848 octave_quit (); |
16195
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|
849 |
23061
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|
850 eof = false; |
16195
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diff
changeset
|
851 |
27527
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refactor input_reader class and its use in lexer
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diff
changeset
|
852 return octave_gets (prompt, eof); |
23061
aedc662896a3
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diff
changeset
|
853 } |
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
854 |
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diff
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|
855 const std::string file_reader::s_in_src ("file"); |
16195
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John W. Eaton <jwe@octave.org>
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|
856 |
23061
aedc662896a3
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John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
857 std::string |
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changeset
|
858 file_reader::get_input (const std::string& /*prompt*/, bool& eof) |
23061
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diff
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|
859 { |
aedc662896a3
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parents:
23060
diff
changeset
|
860 octave_quit (); |
16195
b52d2f9294b6
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diff
changeset
|
861 |
23061
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John W. Eaton <jwe@octave.org>
parents:
23060
diff
changeset
|
862 eof = false; |
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|
863 |
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diff
changeset
|
864 std::string src_str = octave_fgets (m_file, eof); |
25407
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25402
diff
changeset
|
865 |
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|
866 input_system& input_sys = m_interpreter.get_input_system (); |
25407
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diff
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|
867 |
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diff
changeset
|
868 std::string mfile_encoding = input_sys.mfile_encoding (); |
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new input_system class to manage user input for the interpreter
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25402
diff
changeset
|
869 |
27748
5fc630696dc7
Compare locale charset name in lower case (bug #57304).
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parents:
27529
diff
changeset
|
870 std::string encoding; |
5fc630696dc7
Compare locale charset name in lower case (bug #57304).
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diff
changeset
|
871 if (mfile_encoding.compare ("system") == 0) |
5fc630696dc7
Compare locale charset name in lower case (bug #57304).
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|
872 { |
5fc630696dc7
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diff
changeset
|
873 encoding = octave_locale_charset_wrapper (); |
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|
874 // encoding identifiers should consist of ASCII only characters |
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Compare locale charset name in lower case (bug #57304).
Markus Mützel <markus.muetzel@gmx.de>
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|
875 std::transform (encoding.begin (), encoding.end (), encoding.begin (), |
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parents:
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|
876 ::tolower); |
5fc630696dc7
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|
877 } |
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diff
changeset
|
878 else |
5fc630696dc7
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|
879 encoding = mfile_encoding; |
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changeset
|
880 |
25620
467729037209
Strip BOM from UTF-8 encoded .m files (bug #52574).
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25441
diff
changeset
|
881 if (encoding.compare ("utf-8") == 0) |
27785
3f5026fd8da8
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|
882 { |
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diff
changeset
|
883 // Check for BOM and strip it |
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Create valid UTF-8 from .m file content (bug #57341).
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changeset
|
884 if (src_str.compare (0, 3, "\xef\xbb\xbf") == 0) |
3f5026fd8da8
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diff
changeset
|
885 src_str.erase (0, 3); |
3f5026fd8da8
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diff
changeset
|
886 |
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changeset
|
887 // replace invalid portions of the string |
3f5026fd8da8
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diff
changeset
|
888 // FIXME: Include file name that corresponds to m_file. |
3f5026fd8da8
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diff
changeset
|
889 if (string::u8_validate ("get_input", src_str) > 0) |
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changeset
|
890 warning_with_id ("octave:get_input:invalid_utf8", |
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Create valid UTF-8 from .m file content (bug #57341).
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changeset
|
891 "Invalid UTF-8 byte sequences have been replaced."); |
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changeset
|
892 } |
25620
467729037209
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Markus Mützel <markus.muetzel@gmx.de>
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diff
changeset
|
893 else |
27785
3f5026fd8da8
Create valid UTF-8 from .m file content (bug #57341).
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diff
changeset
|
894 { |
3f5026fd8da8
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changeset
|
895 // convert encoding to UTF-8 before returning string |
3f5026fd8da8
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changeset
|
896 const char *src = src_str.c_str (); |
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Create valid UTF-8 from .m file content (bug #57341).
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diff
changeset
|
897 size_t srclen = src_str.length (); |
25361
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diff
changeset
|
898 |
27785
3f5026fd8da8
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Markus Mützel <markus.muetzel@gmx.de>
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changeset
|
899 size_t length; |
3f5026fd8da8
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900 uint8_t *utf8_str; |
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901 |
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902 utf8_str = octave_u8_conv_from_encoding (encoding.c_str (), src, srclen, |
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903 &length); |
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904 |
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905 if (! utf8_str) |
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906 error ("file_reader::get_input: " |
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907 "converting from codepage '%s' to UTF-8: %s", |
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908 encoding.c_str (), std::strerror (errno)); |
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909 |
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910 unwind_protect frame; |
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911 frame.add_fcn (::free, static_cast<void *> (utf8_str)); |
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912 |
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913 src_str = std::string (reinterpret_cast<char *> (utf8_str), length); |
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914 } |
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915 |
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916 return src_str; |
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917 } |
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918 |
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919 const std::string eval_string_reader::s_in_src ("eval_string"); |
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920 |
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921 std::string |
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922 eval_string_reader::get_input (const std::string& /*prompt*/, bool& eof) |
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923 { |
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924 octave_quit (); |
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925 |
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926 eof = false; |
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927 |
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928 std::string retval; |
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929 |
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930 retval = m_eval_string; |
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931 |
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932 // Clear the eval string so that the next call will return |
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933 // an empty character string with EOF = true. |
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934 m_eval_string = ""; |
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935 |
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936 if (retval.empty ()) |
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937 eof = true; |
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938 |
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939 return retval; |
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940 } |
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941 } |
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942 |
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943 DEFMETHOD (input, interp, args, nargout, |
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944 doc: /* -*- texinfo -*- |
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945 @deftypefn {} {@var{ans} =} input (@var{prompt}) |
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946 @deftypefnx {} {@var{ans} =} input (@var{prompt}, "s") |
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947 Print @var{prompt} and wait for user input. |
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948 |
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949 For example, |
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950 |
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951 @example |
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952 input ("Pick a number, any number! ") |
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953 @end example |
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954 |
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955 @noindent |
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956 prints the prompt |
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957 |
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958 @example |
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959 Pick a number, any number! |
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960 @end example |
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961 |
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962 @noindent |
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963 and waits for the user to enter a value. The string entered by the user |
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964 is evaluated as an expression, so it may be a literal constant, a variable |
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965 name, or any other valid Octave code. |
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966 |
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967 The number of return arguments, their size, and their class depend on the |
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968 expression entered. |
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969 |
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970 If you are only interested in getting a literal string value, you can call |
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971 @code{input} with the character string @qcode{"s"} as the second argument. |
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972 This tells Octave to return the string entered by the user directly, without |
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973 evaluating it first. |
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974 |
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975 Because there may be output waiting to be displayed by the pager, it is a |
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976 good idea to always call @code{fflush (stdout)} before calling @code{input}. |
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977 This will ensure that all pending output is written to the screen before |
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978 your prompt. |
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979 @seealso{yes_or_no, kbhit, pause, menu, listdlg} |
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980 @end deftypefn */) |
529 | 981 { |
982 int nargin = args.length (); | |
983 | |
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984 if (nargin < 1 || nargin > 2) |
5823 | 985 print_usage (); |
529 | 986 |
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987 octave::input_system& input_sys = interp.get_input_system (); |
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988 |
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989 return input_sys.get_user_input (args, std::max (nargout, 1)); |
529 | 990 } |
991 | |
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992 DEFMETHOD (yes_or_no, interp, args, , |
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993 doc: /* -*- texinfo -*- |
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994 @deftypefn {} {@var{ans} =} yes_or_no ("@var{prompt}") |
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995 Ask the user a yes-or-no question. |
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996 |
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997 Return logical true if the answer is yes or false if the answer is no. |
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998 |
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999 Takes one argument, @var{prompt}, which is the string to display when asking |
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1000 the question. @var{prompt} should end in a space; @code{yes-or-no} adds the |
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1001 string @samp{(yes or no) } to it. The user must confirm the answer with |
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1002 @key{RET} and can edit it until it has been confirmed. |
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1003 @seealso{input} |
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1004 @end deftypefn */) |
5640 | 1005 { |
1006 int nargin = args.length (); | |
1007 | |
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1008 if (nargin > 1) |
5823 | 1009 print_usage (); |
5640 | 1010 |
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1011 octave::input_system& input_sys = interp.get_input_system (); |
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1012 |
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1013 std::string prompt; |
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1014 |
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1015 if (nargin == 1) |
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1016 prompt = args(0).xstring_value ("yes_or_no: PROMPT must be a string"); |
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1017 |
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1018 return ovl (input_sys.yes_or_no (prompt)); |
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1019 } |
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1020 |
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1021 DEFMETHOD (keyboard, interp, args, , |
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1022 doc: /* -*- texinfo -*- |
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1023 @deftypefn {} {} keyboard () |
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1024 @deftypefnx {} {} keyboard ("@var{prompt}") |
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1025 Stop m-file execution and enter debug mode. |
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1026 |
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1027 When the @code{keyboard} function is executed, Octave prints a prompt and |
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1028 waits for user input. The input strings are then evaluated and the results |
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1029 are printed. This makes it possible to examine the values of variables |
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1030 within a function, and to assign new values if necessary. To leave the |
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1031 prompt and return to normal execution type @samp{return} or @samp{dbcont}. |
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1032 The @code{keyboard} function does not return an exit status. |
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1033 |
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1034 If @code{keyboard} is invoked without arguments, a default prompt of |
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1035 @samp{debug> } is used. |
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1036 @seealso{dbstop, dbcont, dbquit} |
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1037 @end deftypefn */) |
529 | 1038 { |
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1039 int nargin = args.length (); |
9483
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1040 |
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1041 if (nargin > 1) |
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1042 print_usage (); |
10186
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1043 |
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1044 octave::tree_evaluator& tw = interp.get_evaluator (); |
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1045 |
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1046 if (nargin == 1) |
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1047 { |
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1048 std::string prompt |
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1049 = args(0).xstring_value ("keyboard: PROMPT must be a string"); |
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1050 |
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1051 tw.keyboard (prompt); |
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1052 } |
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1053 else |
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1054 tw.keyboard (); |
529 | 1055 |
20941
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1056 return ovl (); |
529 | 1057 } |
1058 | |
2234 | 1059 DEFUN (completion_matches, args, nargout, |
21966
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1060 doc: /* -*- texinfo -*- |
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1061 @deftypefn {} {} completion_matches (@var{hint}) |
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1062 Generate possible completions given @var{hint}. |
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1063 |
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1064 This function is provided for the benefit of programs like Emacs which |
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1065 might be controlling Octave and handling user input. The current |
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1066 command number is not incremented when this function is called. This is |
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1067 a feature, not a bug. |
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1068 @end deftypefn */) |
2234 | 1069 { |
20819
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1070 if (args.length () != 1) |
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1071 print_usage (); |
2234 | 1072 |
20939
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1073 octave_value retval; |
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1074 |
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1075 std::string hint = args(0).string_value (); |
2234 | 1076 |
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1077 int n = 32; |
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1078 |
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1079 string_vector list (n); |
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1080 |
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1081 int k = 0; |
2234 | 1082 |
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1083 for (;;) |
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1084 { |
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1085 std::string cmd = octave::generate_completion (hint, k); |
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1086 |
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1087 if (! cmd.empty ()) |
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1088 { |
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1089 if (k == n) |
10315
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1090 { |
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1091 n *= 2; |
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1092 list.resize (n); |
10315
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1093 } |
2234 | 1094 |
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1095 list[k++] = cmd; |
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1096 } |
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1097 else |
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1098 { |
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1099 list.resize (k); |
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1100 break; |
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1101 } |
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1102 } |
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1103 |
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1104 if (nargout > 0) |
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1105 { |
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1106 if (! list.empty ()) |
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1107 retval = list; |
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1108 else |
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1109 retval = ""; |
2234 | 1110 } |
1111 else | |
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1112 { |
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1113 // We don't use string_vector::list_in_columns here |
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1114 // because it will be easier for Emacs if the names |
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1115 // appear in a single column. |
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1116 |
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1117 int len = list.numel (); |
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1118 |
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1119 for (int i = 0; i < len; i++) |
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1120 octave_stdout << list[i] << "\n"; |
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1121 } |
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1122 |
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1123 octave_completion_matches_called = true; |
2234 | 1124 |
1125 return retval; | |
1126 } | |
1127 | |
20239
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1128 /* |
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1129 %!assert (ischar (completion_matches (""))) |
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1130 %!assert (ischar (completion_matches ("a"))) |
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1131 %!assert (ischar (completion_matches (" "))) |
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1132 %!assert (isempty (completion_matches (" "))) |
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1133 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("")))))) |
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1134 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("a")))))) |
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1135 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("ab")))))) |
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1136 %!assert (any (strcmp ("abs", deblank (cellstr (completion_matches ("abs")))))) |
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1137 %!assert (! any (strcmp ("abs", deblank (cellstr (completion_matches ("absa")))))) |
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1138 |
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1139 %!error completion_matches () |
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1140 %!error completion_matches (1, 2) |
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1141 */ |
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1142 |
16879
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Rename read_readline_init_file to readline_read_init_file.
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|
1143 DEFUN (readline_read_init_file, args, , |
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1144 doc: /* -*- texinfo -*- |
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1145 @deftypefn {} {} readline_read_init_file (@var{file}) |
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1146 Read the readline library initialization file @var{file}. |
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1147 |
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1148 If @var{file} is omitted, read the default initialization file |
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1149 (normally @file{~/.inputrc}). |
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1150 |
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1151 @xref{Readline Init File, , , readline, GNU Readline Library}, |
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1152 for details. |
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1153 @seealso{readline_re_read_init_file} |
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1154 @end deftypefn */) |
3189 | 1155 { |
1156 int nargin = args.length (); | |
1157 | |
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1158 if (nargin > 1) |
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1159 print_usage (); |
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1160 |
3189 | 1161 if (nargin == 0) |
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1162 octave::command_editor::read_init_file (); |
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1163 else |
3189 | 1164 { |
5872 | 1165 std::string file = args(0).string_value (); |
3189 | 1166 |
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1167 octave::command_editor::read_init_file (file); |
3189 | 1168 } |
1169 | |
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1170 return ovl (); |
3189 | 1171 } |
1172 | |
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1173 DEFUN (readline_re_read_init_file, args, , |
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1174 doc: /* -*- texinfo -*- |
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1175 @deftypefn {} {} readline_re_read_init_file () |
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1176 Re-read the last readline library initialization file that was read. |
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1177 |
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1178 @xref{Readline Init File, , , readline, GNU Readline Library}, |
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1179 for details. |
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1180 @seealso{readline_read_init_file} |
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1181 @end deftypefn */) |
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1182 { |
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1183 if (args.length () != 0) |
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1184 print_usage (); |
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1185 |
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1186 octave::command_editor::re_read_init_file (); |
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1187 |
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1188 return ovl (); |
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1189 } |
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1190 |
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1191 namespace octave |
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1192 { |
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1193 static int internal_input_event_hook_fcn (void) |
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1194 { |
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1195 input_system& input_sys |
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1196 = __get_input_system__ ("internal_input_event_hook_fcn"); |
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1197 |
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1198 input_sys.run_input_event_hooks (); |
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1199 |
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1200 if (! input_sys.have_input_event_hooks ()) |
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1201 command_editor::remove_event_hook (internal_input_event_hook_fcn); |
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1202 |
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1203 return 0; |
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1204 } |
3498 | 1205 } |
1206 | |
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1207 DEFMETHOD (add_input_event_hook, interp, args, , |
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1208 doc: /* -*- texinfo -*- |
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1209 @deftypefn {} {@var{id} =} add_input_event_hook (@var{fcn}) |
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1210 @deftypefnx {} {@var{id} =} add_input_event_hook (@var{fcn}, @var{data}) |
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1211 Add the named function or function handle @var{fcn} to the list of functions |
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1212 to call periodically when Octave is waiting for input. |
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1213 |
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1214 The function should have the form |
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1215 |
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1216 @example |
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1217 @var{fcn} (@var{data}) |
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1218 @end example |
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1219 |
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1220 If @var{data} is omitted, Octave calls the function without any arguments. |
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1221 |
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1222 The returned identifier may be used to remove the function handle from the |
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1223 list of input hook functions. |
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1224 @seealso{remove_input_event_hook} |
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1225 @end deftypefn */) |
3498 | 1226 { |
1227 int nargin = args.length (); | |
1228 | |
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1229 if (nargin < 1 || nargin > 2) |
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1230 print_usage (); |
3498 | 1231 |
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1232 octave_value user_data; |
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1233 |
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1234 if (nargin == 2) |
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1235 user_data = args(1); |
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1236 |
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1237 octave::input_system& input_sys = interp.get_input_system (); |
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1238 |
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1239 hook_function hook_fcn (args(0), user_data); |
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1240 |
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1241 if (! input_sys.have_input_event_hooks ()) |
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1242 octave::command_editor::add_event_hook (octave::internal_input_event_hook_fcn); |
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1243 |
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1244 input_sys.add_input_event_hook (hook_fcn); |
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1245 |
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1246 return ovl (hook_fcn.id ()); |
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1247 } |
3498 | 1248 |
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1249 DEFMETHOD (remove_input_event_hook, interp, args, , |
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1250 doc: /* -*- texinfo -*- |
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1251 @deftypefn {} {} remove_input_event_hook (@var{name}) |
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1252 @deftypefnx {} {} remove_input_event_hook (@var{fcn_id}) |
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1253 Remove the named function or function handle with the given identifier |
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1254 from the list of functions to call periodically when Octave is waiting |
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1255 for input. |
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1256 @seealso{add_input_event_hook} |
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1257 @end deftypefn */) |
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1258 { |
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1259 int nargin = args.length (); |
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1260 |
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1261 if (nargin < 1 || nargin > 2) |
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1262 print_usage (); |
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1263 |
26358
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|
1264 std::string hook_fcn_id = args(0).xstring_value ("remove_input_event_hook: argument not valid as a hook function name or id"); |
3498 | 1265 |
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1266 bool warn = (nargin < 2); |
3498 | 1267 |
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1268 octave::input_system& input_sys = interp.get_input_system (); |
3498 | 1269 |
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1270 if (! input_sys.remove_input_event_hook (hook_fcn_id) && warn) |
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1271 warning ("remove_input_event_hook: %s not found in list", |
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1272 hook_fcn_id.c_str ()); |
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1273 |
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1274 if (! input_sys.have_input_event_hooks ()) |
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1275 octave::command_editor::remove_event_hook (octave::internal_input_event_hook_fcn); |
3498 | 1276 |
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1277 return ovl (); |
3498 | 1278 } |
1279 | |
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1280 DEFMETHOD (PS1, interp, args, nargout, |
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1281 doc: /* -*- texinfo -*- |
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1282 @deftypefn {} {@var{val} =} PS1 () |
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1283 @deftypefnx {} {@var{old_val} =} PS1 (@var{new_val}) |
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1284 @deftypefnx {} {} PS1 (@var{new_val}, "local") |
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|
1285 Query or set the primary prompt string. |
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1286 |
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1287 When executing interactively, Octave displays the primary prompt when it is |
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1288 ready to read a command. |
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1289 |
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|
1290 The default value of the primary prompt string is @qcode{'octave:\#> '}. |
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1291 To change it, use a command like |
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1292 |
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1293 @example |
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1294 PS1 ("\\u@@\\H> ") |
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1295 @end example |
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1296 |
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1297 @noindent |
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1298 which will result in the prompt @samp{boris@@kremvax> } for the user |
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1299 @samp{boris} logged in on the host @samp{kremvax.kgb.su}. Note that two |
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1300 backslashes are required to enter a backslash into a double-quoted |
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1301 character string. @xref{Strings}. |
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1302 |
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|
1303 You can also use ANSI escape sequences if your terminal supports them. |
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1304 This can be useful for coloring the prompt. For example, |
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1305 |
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1306 @example |
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1307 PS1 ('\[\033[01;31m\]\s:\#> \[\033[0m\]') |
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1308 @end example |
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1309 |
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1310 @noindent |
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1311 will give the default Octave prompt a red coloring. |
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1312 |
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1313 When called from inside a function with the @qcode{"local"} option, the |
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1314 variable is changed locally for the function and any subroutines it calls. |
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1315 The original variable value is restored when exiting the function. |
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1316 @seealso{PS2, PS4} |
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1317 @end deftypefn */) |
5794 | 1318 { |
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1319 octave::input_system& input_sys = interp.get_input_system (); |
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1320 |
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1321 return input_sys.PS1 (args, nargout); |
5794 | 1322 } |
2181 | 1323 |
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1324 DEFMETHOD (PS2, interp, args, nargout, |
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1325 doc: /* -*- texinfo -*- |
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1326 @deftypefn {} {@var{val} =} PS2 () |
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1327 @deftypefnx {} {@var{old_val} =} PS2 (@var{new_val}) |
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1328 @deftypefnx {} {} PS2 (@var{new_val}, "local") |
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1329 Query or set the secondary prompt string. |
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1330 |
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1331 The secondary prompt is printed when Octave is expecting additional input to |
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1332 complete a command. For example, if you are typing a @code{for} loop that |
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1333 spans several lines, Octave will print the secondary prompt at the beginning |
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1334 of each line after the first. The default value of the secondary prompt |
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1335 string is @qcode{"> "}. |
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1336 |
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|
1337 When called from inside a function with the @qcode{"local"} option, the |
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1338 variable is changed locally for the function and any subroutines it calls. |
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1339 The original variable value is restored when exiting the function. |
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1340 @seealso{PS1, PS4} |
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1341 @end deftypefn */) |
5794 | 1342 { |
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1343 octave::input_system& input_sys = interp.get_input_system (); |
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1344 |
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1345 return input_sys.PS2 (args, nargout); |
5794 | 1346 } |
2181 | 1347 |
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1348 DEFMETHOD (completion_append_char, interp, args, nargout, |
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|
1349 doc: /* -*- texinfo -*- |
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1350 @deftypefn {} {@var{val} =} completion_append_char () |
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1351 @deftypefnx {} {@var{old_val} =} completion_append_char (@var{new_val}) |
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1352 @deftypefnx {} {} completion_append_char (@var{new_val}, "local") |
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1353 Query or set the internal character variable that is appended to |
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1354 successful command-line completion attempts. |
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|
1355 |
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|
1356 The default value is @qcode{" "} (a single space). |
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|
1357 |
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|
1358 When called from inside a function with the @qcode{"local"} option, the |
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1359 variable is changed locally for the function and any subroutines it calls. |
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1360 The original variable value is restored when exiting the function. |
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1361 @end deftypefn */) |
5794 | 1362 { |
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1363 octave::input_system& input_sys = interp.get_input_system (); |
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1364 |
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1365 return input_sys.completion_append_char (args, nargout); |
5794 | 1366 } |
3019 | 1367 |
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1368 DEFMETHOD (__request_drawnow__, , args, , |
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1369 doc: /* -*- texinfo -*- |
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1370 @deftypefn {} {} __request_drawnow__ () |
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1371 @deftypefnx {} {} __request_drawnow__ (@var{flag}) |
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1372 Undocumented internal function. |
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1373 @end deftypefn */) |
6257 | 1374 { |
1375 int nargin = args.length (); | |
1376 | |
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1377 if (nargin > 1) |
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1378 print_usage (); |
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1379 |
6257 | 1380 if (nargin == 0) |
1381 Vdrawnow_requested = true; | |
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1382 else |
6257 | 1383 Vdrawnow_requested = args(0).bool_value (); |
1384 | |
20941
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1385 return ovl (); |
6257 | 1386 } |
1387 | |
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1388 DEFMETHOD (__gud_mode__, interp, args, nargout, |
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1389 doc: /* -*- texinfo -*- |
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1390 @deftypefn {} {} __gud_mode__ () |
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1391 Undocumented internal function. |
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1392 @end deftypefn */) |
7294 | 1393 { |
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1394 octave::input_system& input_sys = interp.get_input_system (); |
20939
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1395 |
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1396 return input_sys.gud_mode (args, nargout); |
7294 | 1397 } |
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1398 |
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1399 DEFMETHOD (__mfile_encoding__, interp, args, nargout, |
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1400 doc: /* -*- texinfo -*- |
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1401 @deftypefn {} {@var{current_encoding} =} __mfile_encoding__ (@var{new_encoding}) |
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1402 Set and query the codepage that is used for reading .m files. |
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1403 @end deftypefn */) |
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1404 { |
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1405 octave::input_system& input_sys = interp.get_input_system (); |
7294 | 1406 |
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1407 return input_sys.mfile_encoding (args, nargout); |
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1408 } |
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1409 |
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1410 // Always define these functions. The macro is intended to allow the |
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1411 // declarations to be hidden, not so that Octave will not provide the |
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1412 // functions if they are requested. |
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1413 |
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1414 // #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
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1415 |
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1416 bool |
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1417 octave_yes_or_no (const std::string& prompt) |
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1418 { |
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1419 octave::input_system& input_sys |
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1420 = octave::__get_input_system__ ("set_default_prompts"); |
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1421 |
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1422 return input_sys.yes_or_no (prompt); |
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1423 } |
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1424 |
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1425 void |
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1426 remove_input_event_hook_functions (void) |
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1427 { |
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1428 octave::input_system& input_sys |
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1429 = octave::__get_input_system__ ("remove_input_event_hook_functions"); |
7294 | 1430 |
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1431 input_sys.clear_input_event_hooks (); |
7294 | 1432 } |
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1433 |
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1434 // Fix things up so that input can come from the standard input. This |
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1435 // may need to become much more complicated, which is why it's in a |
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1436 // separate function. |
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1437 |
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1438 FILE * |
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1439 get_input_from_stdin (void) |
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1440 { |
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1441 octave::command_editor::set_input_stream (stdin); |
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1442 return octave::command_editor::get_input_stream (); |
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1443 } |
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1444 |
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1445 // #endif |