Mercurial > octave
annotate liboctave/util/cmd-edit.h @ 22171:0a4c5a90f286
Allow tab completion of arrays of structures.
* input.h, input.cc (find_indexed_expression): New function. Parse a
partial command line back, skipping () & {}, until a variable name
is found.
* variables.cc (generate_struct_completions): Call the above if prefix
starts with ".".
* input.cc (generate_completion): Handle manipulation of prefix by
generate_struct_completions.
author | Lachlan Andrew <lachlanbis@gmail.com> |
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date | Thu, 30 Jun 2016 18:19:37 +1000 |
parents | 5c67b16acc4a |
children | bac0d6f07a3e |
rev | line source |
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2926 | 1 /* |
2 | |
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3 Copyright (C) 1996-2015 John W. Eaton |
2926 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
2926 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
2926 | 20 |
21 */ | |
22 | |
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23 #if ! defined (octave_cmd_edit_h) |
2926 | 24 #define octave_cmd_edit_h 1 |
25 | |
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26 #include "octave-config.h" |
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27 |
2926 | 28 #include <cstdio> |
29 | |
6913 | 30 #include <set> |
2926 | 31 #include <string> |
32 | |
4604 | 33 #include "str-vec.h" |
34 | |
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35 namespace octave |
2926 | 36 { |
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37 class |
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38 OCTAVE_API |
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39 command_editor |
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40 { |
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41 protected: |
2926 | 42 |
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43 command_editor (void) |
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44 : command_number (0), interrupted (false), initial_input () { } |
2926 | 45 |
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46 public: |
3519 | 47 |
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48 typedef int (*startup_hook_fcn) (void); |
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49 |
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50 typedef int (*pre_input_hook_fcn) (void); |
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52 typedef int (*event_hook_fcn) (void); |
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54 typedef std::string (*completion_fcn) (const std::string&, int); |
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56 typedef char * (*completion_hook_fcn) (); |
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57 |
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58 typedef std::string (*quoting_fcn) (const std::string&, int, char); |
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60 typedef std::string (*dequoting_fcn) (const std::string&, int); |
6979 | 61 |
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62 typedef int (*char_is_quoted_fcn) (const std::string&, int); |
6979 | 63 |
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64 typedef void (*user_accept_line_fcn) (const std::string&); |
2926 | 65 |
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66 virtual ~command_editor (void) { } |
2926 | 67 |
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68 static void set_name (const std::string& n); |
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69 |
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70 static std::string readline (const std::string& prompt); |
2926 | 71 |
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72 static std::string readline (const std::string& prompt, bool& eof); |
3219 | 73 |
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74 static void set_input_stream (FILE *f); |
2926 | 75 |
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76 static FILE *get_input_stream (void); |
2926 | 77 |
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78 static void set_output_stream (FILE *f); |
2926 | 79 |
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80 static FILE *get_output_stream (void); |
2926 | 81 |
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82 static void redisplay (void); |
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83 |
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84 static int terminal_rows (void); |
2926 | 85 |
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86 static int terminal_cols (void); |
2926 | 87 |
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88 static void clear_screen (bool skip_redisplay = false); |
2926 | 89 |
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90 static void resize_terminal (void); |
3281 | 91 |
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92 static void set_screen_size (int ht, int wd); |
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93 |
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94 static std::string decode_prompt_string (const std::string& s); |
2926 | 95 |
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96 static void restore_terminal_state (void); |
2926 | 97 |
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98 static void blink_matching_paren (bool flag); |
2926 | 99 |
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100 static bool erase_empty_line (bool flag); |
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101 |
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102 static void set_basic_word_break_characters (const std::string& s); |
3933 | 103 |
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104 static void set_completer_word_break_characters (const std::string& s); |
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106 static void set_basic_quote_characters (const std::string& s); |
2926 | 107 |
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108 static void set_filename_quote_characters (const std::string& s); |
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110 static void set_completer_quote_characters (const std::string& s); |
6979 | 111 |
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112 static void set_completion_append_character (char c); |
2926 | 113 |
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114 static void set_completion_function (completion_fcn f); |
2941 | 115 |
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116 static void set_quoting_function (quoting_fcn f); |
6979 | 117 |
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118 static void set_dequoting_function (dequoting_fcn f); |
6979 | 119 |
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120 static void set_char_is_quoted_function (char_is_quoted_fcn f); |
6979 | 121 |
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122 static void set_user_accept_line_function (user_accept_line_fcn f); |
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124 static completion_fcn get_completion_function (void); |
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126 static quoting_fcn get_quoting_function (void); |
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128 static dequoting_fcn get_dequoting_function (void); |
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130 static char_is_quoted_fcn get_char_is_quoted_function (void); |
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132 static user_accept_line_fcn get_user_accept_line_function (void); |
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134 static string_vector generate_filename_completions (const std::string& text); |
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136 static std::string get_line_buffer (void); |
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137 |
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138 static std::string get_current_line (void); |
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139 |
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140 static char get_prev_char (int); |
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141 |
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142 static void replace_line (const std::string& text, bool clear_undo = true); |
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143 |
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144 static void kill_full_line (void); |
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145 |
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146 static void insert_text (const std::string& text); |
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148 static void newline (void); |
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150 static void accept_line (void); |
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152 static bool undo (void); |
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153 |
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154 static void clear_undo_list (void); |
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156 static void add_startup_hook (startup_hook_fcn f); |
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158 static void remove_startup_hook (startup_hook_fcn f); |
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160 static void add_pre_input_hook (pre_input_hook_fcn f); |
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161 |
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162 static void remove_pre_input_hook (pre_input_hook_fcn f); |
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163 |
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164 static void add_event_hook (event_hook_fcn f); |
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166 static void remove_event_hook (event_hook_fcn f); |
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168 static void run_event_hooks (void); |
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169 |
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170 static void read_init_file (const std::string& file = ""); |
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172 static void re_read_init_file (void); |
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173 |
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174 static bool filename_completion_desired (bool); |
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176 static bool filename_quoting_desired (bool); |
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177 |
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178 static bool prefer_env_winsize (bool); |
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180 static bool interrupt (bool = true); |
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181 |
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182 static int current_command_number (void); |
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183 |
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184 static void reset_current_command_number (int n); |
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186 static void increment_current_command_number (void); |
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188 static void force_default_editor (void); |
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190 static void set_initial_input (const std::string& text); |
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191 |
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192 static int insert_initial_input (void); |
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193 |
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194 private: |
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195 |
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196 // No copying! |
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198 command_editor (const command_editor&); |
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200 command_editor& operator = (const command_editor&); |
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202 static bool instance_ok (void); |
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204 static void make_command_editor (void); |
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206 static int startup_handler (void); |
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208 static int pre_input_handler (void); |
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210 static int event_handler (void); |
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211 |
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212 static std::set<startup_hook_fcn> startup_hook_set; |
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214 static std::set<pre_input_hook_fcn> pre_input_hook_set; |
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216 static std::set<event_hook_fcn> event_hook_set; |
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217 |
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218 // The real thing. |
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219 static command_editor *instance; |
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220 |
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221 static void cleanup_instance (void) { delete instance; instance = 0; } |
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223 protected: |
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225 // To use something other than the GNU readline library, derive a new |
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226 // class from command_editor, overload these functions as |
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227 // necessary, and make instance point to the new class. |
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229 virtual void do_set_name (const std::string&) { } |
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231 std::string do_readline (const std::string& prompt) |
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232 { |
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233 bool eof; |
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235 return do_readline (prompt, eof); |
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236 } |
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237 |
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238 virtual std::string do_readline (const std::string&, bool&) = 0; |
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240 virtual void do_set_input_stream (FILE *) = 0; |
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242 virtual FILE *do_get_input_stream (void) = 0; |
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244 virtual void do_set_output_stream (FILE *) = 0; |
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246 virtual FILE *do_get_output_stream (void) = 0; |
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248 virtual void do_redisplay (void) { } |
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250 virtual int do_terminal_rows (void) { return 24; } |
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251 |
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252 virtual int do_terminal_cols (void) { return 80; } |
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253 |
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254 virtual void do_clear_screen (bool) { } |
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256 virtual void do_resize_terminal (void) { } |
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258 virtual void do_set_screen_size (int, int) { } |
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260 virtual std::string do_decode_prompt_string (const std::string&); |
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262 virtual std::string newline_chars (void) { return "\n"; } |
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263 |
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264 virtual void do_restore_terminal_state (void) { } |
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266 virtual void do_blink_matching_paren (bool) { } |
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268 virtual bool do_erase_empty_line (bool) { return false; } |
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270 virtual void do_set_basic_word_break_characters (const std::string&) { } |
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272 virtual void do_set_completer_word_break_characters (const std::string&) { } |
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273 |
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274 virtual void do_set_completer_word_break_hook (completion_hook_fcn) { } |
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275 |
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276 virtual void do_set_basic_quote_characters (const std::string&) { } |
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278 virtual void do_set_filename_quote_characters (const std::string&) { } |
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280 virtual void do_set_completer_quote_characters (const std::string&) { } |
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282 virtual void do_set_completion_append_character (char) { } |
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284 virtual void do_set_completion_function (completion_fcn) { } |
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286 virtual void do_set_quoting_function (quoting_fcn) { } |
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288 virtual void do_set_dequoting_function (dequoting_fcn) { } |
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290 virtual void do_set_char_is_quoted_function (char_is_quoted_fcn) { } |
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292 virtual void do_set_user_accept_line_function (user_accept_line_fcn) { } |
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293 |
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294 virtual completion_fcn do_get_completion_function (void) const { return 0; } |
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296 virtual quoting_fcn do_get_quoting_function (void) const { return 0; } |
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298 virtual dequoting_fcn do_get_dequoting_function (void) const { return 0; } |
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300 virtual char_is_quoted_fcn do_get_char_is_quoted_function (void) const |
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301 { return 0; } |
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303 virtual user_accept_line_fcn do_get_user_accept_line_function (void) const |
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304 { return 0; } |
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306 virtual string_vector |
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307 do_generate_filename_completions (const std::string& text) = 0; |
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308 |
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309 virtual std::string do_get_line_buffer (void) const = 0; |
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311 virtual std::string do_get_current_line (void) const = 0; |
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313 virtual char do_get_prev_char (int) const = 0; |
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314 |
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315 virtual void do_replace_line (const std::string& text, bool clear_undo) = 0; |
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317 virtual void do_kill_full_line (void) = 0; |
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318 |
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319 virtual void do_insert_text (const std::string& text) = 0; |
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320 |
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321 virtual void do_newline (void) = 0; |
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322 |
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323 virtual void do_accept_line (void) = 0; |
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324 |
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325 virtual bool do_undo (void) { return false; } |
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327 virtual void do_clear_undo_list (void) { } |
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329 virtual void set_startup_hook (startup_hook_fcn) { } |
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331 virtual void restore_startup_hook (void) { } |
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332 |
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333 virtual void set_pre_input_hook (pre_input_hook_fcn) { } |
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335 virtual void restore_pre_input_hook (void) { } |
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337 virtual void set_event_hook (event_hook_fcn) { } |
2926 | 338 |
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339 virtual void restore_event_hook (void) { } |
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340 |
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341 virtual void do_read_init_file (const std::string&) { } |
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342 |
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343 virtual void do_re_read_init_file (void) { } |
3215 | 344 |
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345 virtual bool do_filename_completion_desired (bool) { return false; } |
3215 | 346 |
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347 virtual bool do_filename_quoting_desired (bool) { return false; } |
3189 | 348 |
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349 virtual bool do_prefer_env_winsize (bool) { return false; } |
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350 |
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351 virtual void do_interrupt (bool) { } |
4143 | 352 |
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353 int do_insert_initial_input (void); |
6979 | 354 |
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355 int read_octal (const std::string& s); |
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356 |
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357 void error (int); |
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358 |
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359 void error (const std::string&); |
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360 |
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361 // The current command number. |
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362 int command_number; |
2926 | 363 |
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364 bool interrupted; |
2926 | 365 |
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366 std::string initial_input; |
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367 }; |
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368 } |
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369 |
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370 #if defined (OCTAVE_USE_DEPRECATED_FUNCTIONS) |
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371 |
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372 OCTAVE_DEPRECATED ("use 'octave::command_editor' instead") |
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373 typedef octave::command_editor command_editor; |
2926 | 374 |
375 #endif | |
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376 |
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377 #endif |