Mercurial > octave-nkf
annotate libinterp/interpfcn/oct-hist.cc @ 15467:049e8bbff782
maint: periodic merge of stable to default
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Mon, 01 Oct 2012 18:30:44 -0400 |
| parents | src/oct-hist.cc@d174210ce1ec src/oct-hist.cc@9020dddc925a |
| children | 1eee8d8c59fd |
| rev | line source |
|---|---|
| 1 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1993-2012 John W. Eaton |
| 1 | 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. | |
| 1 | 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/>. | |
| 1 | 20 |
| 2939 | 21 */ |
| 22 | |
| 23 /* | |
| 24 | |
| 1 | 25 The functions listed below were adapted from similar functions from |
| 26 GNU Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 Free | |
| 27 Software Foundation, Inc. | |
| 28 | |
| 29 do_history edit_history_readline | |
| 30 do_edit_history edit_history_add_hist | |
| 31 | |
| 32 */ | |
| 33 | |
| 240 | 34 #ifdef HAVE_CONFIG_H |
| 1192 | 35 #include <config.h> |
| 1 | 36 #endif |
| 37 | |
| 1343 | 38 #include <cstdlib> |
| 39 #include <cstring> | |
| 40 | |
| 1750 | 41 #include <string> |
| 42 | |
| 3503 | 43 #include <fstream> |
| 1350 | 44 |
| 1 | 45 #include <sys/types.h> |
| 46 #include <unistd.h> | |
| 1350 | 47 |
| 1799 | 48 #include "cmd-hist.h" |
| 1802 | 49 #include "file-ops.h" |
| 3016 | 50 #include "lo-mappers.h" |
| 2926 | 51 #include "oct-env.h" |
| 5305 | 52 #include "oct-time.h" |
| 1755 | 53 #include "str-vec.h" |
| 54 | |
| 2492 | 55 #include <defaults.h> |
| 1352 | 56 #include "defun.h" |
| 1 | 57 #include "error.h" |
| 3016 | 58 #include "gripes.h" |
| 1 | 59 #include "input.h" |
| 1742 | 60 #include "oct-hist.h" |
| 1750 | 61 #include "oct-obj.h" |
| 1352 | 62 #include "pager.h" |
| 3018 | 63 #include "parse.h" |
| 1352 | 64 #include "sighandlers.h" |
| 1690 | 65 #include "sysdep.h" |
| 1750 | 66 #include "toplev.h" |
| 1352 | 67 #include "unwind-prot.h" |
| 68 #include "utils.h" | |
| 2205 | 69 #include "variables.h" |
| 1 | 70 |
| 3018 | 71 // TRUE means input is coming from temporary history file. |
| 72 bool input_from_tmp_history_file = false; | |
| 168 | 73 |
| 5305 | 74 static std::string |
| 1 | 75 default_history_file (void) |
| 76 { | |
| 3523 | 77 std::string file; |
| 1 | 78 |
| 3523 | 79 std::string env_file = octave_env::getenv ("OCTAVE_HISTFILE"); |
| 1755 | 80 |
| 2926 | 81 if (! env_file.empty ()) |
| 6141 | 82 file = env_file; |
| 1 | 83 |
| 1755 | 84 if (file.empty ()) |
| 7272 | 85 file = file_ops::concat (octave_env::get_home_directory (), |
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86 ".octave_hist"); |
| 1 | 87 |
| 88 return file; | |
| 89 } | |
| 90 | |
| 5305 | 91 static int |
| 92 default_history_size (void) | |
| 93 { | |
| 94 int size = 1024; | |
| 95 | |
| 96 std::string env_size = octave_env::getenv ("OCTAVE_HISTSIZE"); | |
| 97 | |
| 98 if (! env_size.empty ()) | |
| 99 { | |
| 100 int val; | |
| 101 | |
| 102 if (sscanf (env_size.c_str (), "%d", &val) == 1) | |
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103 size = val > 0 ? val : 0; |
| 5305 | 104 } |
| 105 | |
| 106 return size; | |
| 107 } | |
| 108 | |
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109 static std::string |
| 5305 | 110 default_history_timestamp_format (void) |
| 111 { | |
| 112 return | |
| 113 std::string ("# Octave " OCTAVE_VERSION ", %a %b %d %H:%M:%S %Y %Z <") | |
| 114 + octave_env::get_user_name () | |
| 115 + std::string ("@") | |
| 116 + octave_env::get_host_name () | |
| 117 + std::string (">"); | |
| 118 } | |
| 119 | |
| 5794 | 120 // The format of the timestamp marker written to the history file when |
| 121 // Octave exits. | |
| 122 static std::string Vhistory_timestamp_format_string | |
| 123 = default_history_timestamp_format (); | |
| 124 | |
| 581 | 125 // Display, save, or load history. Stolen and modified from bash. |
| 126 // | |
| 127 // Arg of -w FILENAME means write file, arg of -r FILENAME | |
| 128 // means read file, arg of -q means don't number lines. Arg of N | |
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129 // means only display that many items. |
| 581 | 130 |
| 1755 | 131 static void |
| 132 do_history (int argc, const string_vector& argv) | |
| 1 | 133 { |
| 134 int numbered_output = 1; | |
| 135 | |
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136 unwind_protect frame; |
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137 |
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138 frame.add_fcn (command_history::set_file, command_history::file ()); |
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139 |
| 1755 | 140 int i; |
| 141 for (i = 1; i < argc; i++) | |
| 1 | 142 { |
| 3523 | 143 std::string option = argv[i]; |
| 2435 | 144 |
| 145 if (option == "-r" || option == "-w" || option == "-a" | |
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146 || option == "-n") |
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147 { |
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148 if (i < argc - 1) |
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149 command_history::set_file (argv[i+1]); |
| 1 | 150 |
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151 if (option == "-a") |
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152 // Append 'new' lines to file. |
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153 command_history::append (); |
| 2435 | 154 |
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155 else if (option == "-w") |
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156 // Write entire history. |
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157 command_history::write (); |
| 777 | 158 |
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159 else if (option == "-r") |
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160 // Read entire file. |
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161 command_history::read (); |
| 777 | 162 |
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163 else if (option == "-n") |
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164 // Read 'new' history from file. |
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165 command_history::read_range (); |
| 777 | 166 |
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167 else |
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168 panic_impossible (); |
| 2435 | 169 |
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170 return; |
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171 } |
| 1755 | 172 else if (argv[i] == "-q") |
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173 numbered_output = 0; |
| 1755 | 174 else if (argv[i] == "--") |
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175 { |
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176 i++; |
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177 break; |
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178 } |
| 1 | 179 else |
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180 break; |
| 1 | 181 } |
| 182 | |
| 1799 | 183 int limit = -1; |
| 1 | 184 |
| 1755 | 185 if (i < argc) |
| 1 | 186 { |
| 1755 | 187 if (sscanf (argv[i].c_str (), "%d", &limit) != 1) |
| 1 | 188 { |
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189 if (argv[i][0] == '-') |
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190 error ("history: unrecognized option '%s'", argv[i].c_str ()); |
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191 else |
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192 error ("history: bad non-numeric arg '%s'", argv[i].c_str ()); |
| 1799 | 193 |
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194 return; |
| 1 | 195 } |
| 196 | |
| 197 if (limit < 0) | |
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198 limit = -limit; |
| 1799 | 199 } |
| 1 | 200 |
| 2926 | 201 string_vector hlist = command_history::list (limit, numbered_output); |
| 1 | 202 |
| 1799 | 203 int len = hlist.length (); |
| 204 | |
| 2095 | 205 for (i = 0; i < len; i++) |
| 206 octave_stdout << hlist[i] << "\n"; | |
| 1 | 207 } |
| 208 | |
| 581 | 209 // Read the edited history lines from STREAM and return them |
| 210 // one at a time. This can read unlimited length lines. The | |
| 2434 | 211 // caller should free the storage. |
| 581 | 212 |
| 1 | 213 static char * |
| 3551 | 214 edit_history_readline (std::fstream& stream) |
| 1 | 215 { |
| 216 char c; | |
| 217 int line_len = 128; | |
| 218 int lindex = 0; | |
| 219 char *line = new char [line_len]; | |
| 220 line[0] = '\0'; | |
| 221 | |
| 222 while (stream.get (c)) | |
| 223 { | |
| 224 if (lindex + 2 >= line_len) | |
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225 { |
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226 char *tmp_line = new char [line_len += 128]; |
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227 strcpy (tmp_line, line); |
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228 delete [] line; |
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229 line = tmp_line; |
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230 } |
| 1 | 231 |
| 232 if (c == '\n') | |
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233 { |
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234 line[lindex++] = '\n'; |
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235 line[lindex++] = '\0'; |
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236 return line; |
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237 } |
| 1 | 238 else |
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239 line[lindex++] = c; |
| 1 | 240 } |
| 241 | |
| 242 if (! lindex) | |
| 243 { | |
| 244 delete [] line; | |
| 529 | 245 return 0; |
| 1 | 246 } |
| 247 | |
| 248 if (lindex + 2 >= line_len) | |
| 249 { | |
| 250 char *tmp_line = new char [lindex+3]; | |
| 251 strcpy (tmp_line, line); | |
| 252 delete [] line; | |
| 253 line = tmp_line; | |
| 254 } | |
| 255 | |
| 1358 | 256 // Finish with newline if none in file. |
| 1 | 257 |
| 258 line[lindex++] = '\n'; | |
| 259 line[lindex++] = '\0'; | |
| 260 return line; | |
| 261 } | |
| 262 | |
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263 // Use 'command' to replace the last entry in the history list, which, |
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264 // by this time, is 'run_history blah...'. The intent is that the |
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265 // new command becomes the history entry, and that 'fc' should never |
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266 // appear in the history list. This way you can do 'run_history' to |
| 581 | 267 // your heart's content. |
| 268 | |
| 64 | 269 static void |
| 3523 | 270 edit_history_repl_hist (const std::string& command) |
| 64 | 271 { |
| 1799 | 272 if (! command.empty ()) |
| 273 { | |
| 2926 | 274 string_vector hlist = command_history::list (); |
| 64 | 275 |
| 1799 | 276 int len = hlist.length (); |
| 64 | 277 |
| 1799 | 278 if (len > 0) |
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279 { |
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280 int i = len - 1; |
| 64 | 281 |
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282 std::string histent = command_history::get_entry (i); |
| 64 | 283 |
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284 if (! histent.empty ()) |
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285 { |
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286 std::string cmd = command; |
| 64 | 287 |
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288 int cmd_len = cmd.length (); |
| 64 | 289 |
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290 if (cmd[cmd_len - 1] == '\n') |
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291 cmd.resize (cmd_len - 1); |
| 64 | 292 |
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293 if (! cmd.empty ()) |
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294 command_history::replace_entry (i, cmd); |
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295 } |
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296 } |
| 64 | 297 } |
| 298 } | |
| 299 | |
| 1 | 300 static void |
| 3523 | 301 edit_history_add_hist (const std::string& line) |
| 1 | 302 { |
| 1799 | 303 if (! line.empty ()) |
| 1 | 304 { |
| 3523 | 305 std::string tmp = line; |
| 1 | 306 |
| 1799 | 307 int len = tmp.length (); |
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308 |
| 1799 | 309 if (len > 0 && tmp[len-1] == '\n') |
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310 tmp.resize (len - 1); |
| 1799 | 311 |
| 312 if (! tmp.empty ()) | |
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313 command_history::add (tmp); |
| 1 | 314 } |
| 315 } | |
| 316 | |
| 3536 | 317 static std::string |
| 1755 | 318 mk_tmp_hist_file (int argc, const string_vector& argv, |
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319 int insert_curr, const char *warn_for) |
| 1 | 320 { |
| 3523 | 321 std::string retval; |
| 1 | 322 |
| 2926 | 323 string_vector hlist = command_history::list (); |
| 1 | 324 |
| 1799 | 325 int hist_count = hlist.length (); |
| 1 | 326 |
| 1358 | 327 // The current command line is already part of the history list by |
| 328 // the time we get to this point. Delete it from the list. | |
| 1 | 329 |
| 330 hist_count -= 2; | |
| 1799 | 331 |
| 64 | 332 if (! insert_curr) |
| 2926 | 333 command_history::remove (hist_count); |
| 1799 | 334 |
| 1 | 335 hist_count--; |
| 336 | |
| 1358 | 337 // If no numbers have been specified, the default is to edit the |
| 338 // last command in the history list. | |
| 1 | 339 |
| 340 int hist_end = hist_count; | |
| 341 int hist_beg = hist_count; | |
| 342 int reverse = 0; | |
| 343 | |
| 1358 | 344 // Process options. |
| 1 | 345 |
| 346 int usage_error = 0; | |
| 347 if (argc == 3) | |
| 348 { | |
| 1755 | 349 if (sscanf (argv[1].c_str (), "%d", &hist_beg) != 1 |
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350 || sscanf (argv[2].c_str (), "%d", &hist_end) != 1) |
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351 usage_error = 1; |
| 1 | 352 else |
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353 { |
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354 hist_beg--; |
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355 hist_end--; |
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356 } |
| 1 | 357 } |
| 358 else if (argc == 2) | |
| 359 { | |
| 1755 | 360 if (sscanf (argv[1].c_str (), "%d", &hist_beg) != 1) |
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361 usage_error = 1; |
| 1 | 362 else |
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363 { |
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364 hist_beg--; |
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365 hist_end = hist_beg; |
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366 } |
| 1 | 367 } |
| 368 | |
| 369 if (hist_beg < 0 || hist_end < 0 || hist_beg > hist_count | |
| 370 || hist_end > hist_count) | |
| 371 { | |
| 64 | 372 error ("%s: history specification out of range", warn_for); |
| 1799 | 373 return retval; |
| 1 | 374 } |
| 375 | |
| 376 if (usage_error) | |
| 377 { | |
| 64 | 378 usage ("%s [first] [last]", warn_for); |
| 1799 | 379 return retval; |
| 1 | 380 } |
| 381 | |
| 382 if (hist_end < hist_beg) | |
| 383 { | |
| 384 int t = hist_end; | |
| 385 hist_end = hist_beg; | |
| 386 hist_beg = t; | |
| 387 reverse = 1; | |
| 388 } | |
| 389 | |
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390 std::string name = octave_tempnam ("", "oct-"); |
| 1 | 391 |
| 3551 | 392 std::fstream file (name.c_str (), std::ios::out); |
| 64 | 393 |
| 1 | 394 if (! file) |
| 395 { | |
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396 error ("%s: couldn't open temporary file '%s'", warn_for, |
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397 name.c_str ()); |
| 1799 | 398 return retval; |
| 1 | 399 } |
| 400 | |
| 401 if (reverse) | |
| 402 { | |
| 403 for (int i = hist_end; i >= hist_beg; i--) | |
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404 file << hlist[i] << "\n"; |
| 1 | 405 } |
| 406 else | |
| 407 { | |
| 408 for (int i = hist_beg; i <= hist_end; i++) | |
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409 file << hlist[i] << "\n"; |
| 1 | 410 } |
| 411 | |
| 412 file.close (); | |
| 413 | |
| 1755 | 414 return name; |
| 64 | 415 } |
| 416 | |
| 10411 | 417 static void |
| 418 unlink_cleanup (const char *file) | |
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419 { |
| 10411 | 420 gnulib::unlink (file); |
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421 } |
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422 |
| 1755 | 423 static void |
| 424 do_edit_history (int argc, const string_vector& argv) | |
| 64 | 425 { |
| 3523 | 426 std::string name = mk_tmp_hist_file (argc, argv, 0, "edit_history"); |
| 64 | 427 |
| 1755 | 428 if (name.empty ()) |
| 64 | 429 return; |
| 430 | |
| 1358 | 431 // Call up our favorite editor on the file of commands. |
| 1 | 432 |
| 5794 | 433 std::string cmd = VEDITOR; |
| 4469 | 434 cmd.append (" \""); |
| 1799 | 435 cmd.append (name); |
| 4469 | 436 cmd.append ("\""); |
| 1 | 437 |
| 1358 | 438 // Ignore interrupts while we are off editing commands. Should we |
| 439 // maybe avoid using system()? | |
| 1 | 440 |
| 2705 | 441 volatile octave_interrupt_handler old_interrupt_handler |
| 2554 | 442 = octave_ignore_interrupts (); |
| 1443 | 443 |
| 1799 | 444 system (cmd.c_str ()); |
| 1443 | 445 |
| 2554 | 446 octave_set_interrupt_handler (old_interrupt_handler); |
| 1 | 447 |
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448 // Write the commands to the history file since source_file |
| 1358 | 449 // disables command line history while it executes. |
| 1 | 450 |
| 3551 | 451 std::fstream file (name.c_str (), std::ios::in); |
| 1 | 452 |
| 453 char *line; | |
| 64 | 454 int first = 1; |
| 529 | 455 while ((line = edit_history_readline (file)) != 0) |
| 1 | 456 { |
| 1358 | 457 // Skip blank lines. |
| 1 | 458 |
| 459 if (line[0] == '\n') | |
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460 { |
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461 delete [] line; |
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462 continue; |
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463 } |
| 1 | 464 |
| 64 | 465 if (first) |
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466 { |
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467 first = 0; |
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468 edit_history_repl_hist (line); |
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469 } |
| 64 | 470 else |
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471 edit_history_add_hist (line); |
| 1 | 472 } |
| 473 | |
| 474 file.close (); | |
| 475 | |
| 1358 | 476 // Turn on command echo, so the output from this will make better |
| 477 // sense. | |
| 1 | 478 |
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479 unwind_protect frame; |
| 3018 | 480 |
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481 frame.add_fcn (unlink_cleanup, name.c_str ()); |
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482 frame.protect_var (Vecho_executing_commands); |
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483 frame.protect_var (input_from_tmp_history_file); |
| 3018 | 484 |
| 2205 | 485 Vecho_executing_commands = ECHO_CMD_LINE; |
| 3018 | 486 input_from_tmp_history_file = true; |
| 1 | 487 |
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488 source_file (name); |
| 1 | 489 } |
| 490 | |
| 1755 | 491 static void |
| 492 do_run_history (int argc, const string_vector& argv) | |
| 64 | 493 { |
| 3523 | 494 std::string name = mk_tmp_hist_file (argc, argv, 1, "run_history"); |
| 64 | 495 |
| 1755 | 496 if (name.empty ()) |
| 64 | 497 return; |
| 498 | |
| 1799 | 499 // Turn on command echo so the output from this will make better |
| 1358 | 500 // sense. |
| 64 | 501 |
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502 unwind_protect frame; |
| 3018 | 503 |
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504 frame.add_fcn (unlink_cleanup, name.c_str ()); |
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505 frame.protect_var (Vecho_executing_commands); |
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506 frame.protect_var (input_from_tmp_history_file); |
| 3018 | 507 |
| 2205 | 508 Vecho_executing_commands = ECHO_CMD_LINE; |
| 3018 | 509 input_from_tmp_history_file = true; |
| 64 | 510 |
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511 source_file (name); |
| 64 | 512 } |
| 513 | |
| 5305 | 514 void |
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515 initialize_history (bool read_history_file) |
| 5794 | 516 { |
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517 command_history::initialize (read_history_file, |
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518 default_history_file (), |
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519 default_history_size (), |
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520 octave_env::getenv ("OCTAVE_HISTCONTROL")); |
| 5794 | 521 } |
| 522 | |
| 523 void | |
| 5305 | 524 octave_history_write_timestamp (void) |
| 525 { | |
| 526 octave_localtime now; | |
| 527 | |
| 528 std::string timestamp = now.strftime (Vhistory_timestamp_format_string); | |
| 529 | |
| 530 if (! timestamp.empty ()) | |
| 531 command_history::add (timestamp); | |
| 532 } | |
| 533 | |
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534 DEFUN (edit_history, args, , |
| 3332 | 535 "-*- texinfo -*-\n\ |
| 11547 | 536 @deftypefn {Command} {} edit_history [@var{first}] [@var{last}]\n\ |
| 3332 | 537 If invoked with no arguments, @code{edit_history} allows you to edit the\n\ |
| 10840 | 538 history list using the editor named by the variable @w{@env{EDITOR}}. The\n\ |
| 3332 | 539 commands to be edited are first copied to a temporary file. When you\n\ |
| 540 exit the editor, Octave executes the commands that remain in the file.\n\ | |
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541 It is often more convenient to use @code{edit_history} to define functions\n\ |
| 3332 | 542 rather than attempting to enter them directly on the command line.\n\ |
| 543 By default, the block of commands is executed as soon as you exit the\n\ | |
| 544 editor. To avoid executing any commands, simply delete all the lines\n\ | |
| 545 from the buffer before exiting the editor.\n\ | |
| 546 \n\ | |
| 547 The @code{edit_history} command takes two optional arguments specifying\n\ | |
| 548 the history numbers of first and last commands to edit. For example,\n\ | |
| 549 the command\n\ | |
| 529 | 550 \n\ |
| 3332 | 551 @example\n\ |
| 552 edit_history 13\n\ | |
| 553 @end example\n\ | |
| 554 \n\ | |
| 555 @noindent\n\ | |
| 556 extracts all the commands from the 13th through the last in the history\n\ | |
| 557 list. The command\n\ | |
| 558 \n\ | |
| 559 @example\n\ | |
| 560 edit_history 13 169\n\ | |
| 561 @end example\n\ | |
| 562 \n\ | |
| 563 @noindent\n\ | |
| 564 only extracts commands 13 through 169. Specifying a larger number for\n\ | |
| 565 the first command than the last command reverses the list of commands\n\ | |
| 566 before placing them in the buffer to be edited. If both arguments are\n\ | |
| 567 omitted, the previous command in the history list is used.\n\ | |
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568 @seealso{run_history}\n\ |
| 11547 | 569 @end deftypefn") |
| 529 | 570 { |
| 2086 | 571 octave_value_list retval; |
| 529 | 572 |
| 1755 | 573 int argc = args.length () + 1; |
| 574 | |
| 1968 | 575 string_vector argv = args.make_argv ("edit_history"); |
| 1755 | 576 |
| 577 if (error_state) | |
| 578 return retval; | |
| 529 | 579 |
| 580 do_edit_history (argc, argv); | |
| 581 | |
| 582 return retval; | |
| 583 } | |
| 584 | |
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585 DEFUN (history, args, , |
| 3332 | 586 "-*- texinfo -*-\n\ |
| 11547 | 587 @deftypefn {Command} {} history options\n\ |
| 3332 | 588 If invoked with no arguments, @code{history} displays a list of commands\n\ |
| 589 that you have executed. Valid options are:\n\ | |
| 590 \n\ | |
| 591 @table @code\n\ | |
| 592 @item -w @var{file}\n\ | |
| 593 Write the current history to the file @var{file}. If the name is\n\ | |
| 594 omitted, use the default history file (normally @file{~/.octave_hist}).\n\ | |
| 529 | 595 \n\ |
| 3332 | 596 @item -r @var{file}\n\ |
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597 Read the file @var{file}, appending its contents to the current\n\ |
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598 history list. If the name is omitted, use the default history file\n\ |
| 3332 | 599 (normally @file{~/.octave_hist}).\n\ |
| 600 \n\ | |
| 3499 | 601 @item @var{n}\n\ |
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602 Display only the most recent @var{n} lines of history.\n\ |
| 3332 | 603 \n\ |
| 604 @item -q\n\ | |
| 605 Don't number the displayed lines of history. This is useful for cutting\n\ | |
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606 and pasting commands using the X Window System.\n\ |
| 3332 | 607 @end table\n\ |
| 608 \n\ | |
| 609 For example, to display the five most recent commands that you have\n\ | |
| 610 typed without displaying line numbers, use the command\n\ | |
| 611 @kbd{history -q 5}.\n\ | |
| 11547 | 612 @end deftypefn") |
| 529 | 613 { |
| 2086 | 614 octave_value_list retval; |
| 529 | 615 |
| 1755 | 616 int argc = args.length () + 1; |
| 617 | |
| 1968 | 618 string_vector argv = args.make_argv ("history"); |
| 1755 | 619 |
| 620 if (error_state) | |
| 621 return retval; | |
| 529 | 622 |
| 623 do_history (argc, argv); | |
| 624 | |
| 625 return retval; | |
| 626 } | |
| 627 | |
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628 DEFUN (run_history, args, , |
| 3332 | 629 "-*- texinfo -*-\n\ |
| 11547 | 630 @deftypefn {Command} {} run_history [@var{first}] [@var{last}]\n\ |
| 3332 | 631 Similar to @code{edit_history}, except that the editor is not invoked,\n\ |
| 632 and the commands are simply executed as they appear in the history list.\n\ | |
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633 @seealso{edit_history}\n\ |
| 11547 | 634 @end deftypefn") |
| 529 | 635 { |
| 2086 | 636 octave_value_list retval; |
| 529 | 637 |
| 1755 | 638 int argc = args.length () + 1; |
| 639 | |
| 1968 | 640 string_vector argv = args.make_argv ("run_history"); |
| 1755 | 641 |
| 642 if (error_state) | |
| 643 return retval; | |
| 529 | 644 |
| 645 do_run_history (argc, argv); | |
| 646 | |
| 647 return retval; | |
| 648 } | |
| 649 | |
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650 DEFUN (history_control, args, nargout, |
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651 "-*- texinfo -*-\n\ |
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652 @deftypefn {Built-in Function} {@var{val} =} history_control ()\n\ |
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653 @deftypefnx {Built-in Function} {@var{old_val} =} history_control (@var{new_val})\n\ |
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654 Query or set the internal variable that specifies how commands are saved\n\ |
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655 to the history list. The default value is an empty character string,\n\ |
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656 but may be overridden by the environment variable\n\ |
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657 @w{@env{OCTAVE_HISTCONTROL}}.\n\ |
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658 \n\ |
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659 The value of @code{history_control} is a colon-separated list of values\n\ |
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660 controlling how commands are saved on the history list. If the list\n\ |
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661 of values includes @code{ignorespace}, lines which begin with a space\n\ |
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662 character are not saved in the history list. A value of @code{ignoredups}\n\ |
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663 causes lines matching the previous history entry to not be saved.\n\ |
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664 A value of @code{ignoreboth} is shorthand for @code{ignorespace} and\n\ |
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665 @code{ignoredups}. A value of @code{erasedups} causes all previous lines\n\ |
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666 matching the current line to be removed from the history list before that\n\ |
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667 line is saved. Any value not in the above list is ignored. If\n\ |
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668 @code{history_control} is the empty string, all commands are saved on\n\ |
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669 the history list, subject to the value of @code{saving_history}.\n\ |
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670 @seealso{history_file, history_size, history_timestamp_format_string, saving_history}\n\ |
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671 @end deftypefn") |
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672 { |
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673 std::string old_history_control = command_history::histcontrol (); |
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674 |
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675 std::string tmp = old_history_control; |
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676 |
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677 octave_value retval = set_internal_variable (tmp, args, nargout, |
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678 "history_control"); |
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679 |
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680 if (tmp != old_history_control) |
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681 command_history::process_histcontrol (tmp); |
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682 |
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683 return retval; |
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684 } |
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685 |
| 5794 | 686 DEFUN (history_size, args, nargout, |
| 687 "-*- texinfo -*-\n\ | |
| 10840 | 688 @deftypefn {Built-in Function} {@var{val} =} history_size ()\n\ |
| 5794 | 689 @deftypefnx {Built-in Function} {@var{old_val} =} history_size (@var{new_val})\n\ |
| 690 Query or set the internal variable that specifies how many entries\n\ | |
| 691 to store in the history file. The default value is @code{1024},\n\ | |
| 10840 | 692 but may be overridden by the environment variable @w{@env{OCTAVE_HISTSIZE}}.\n\ |
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693 @seealso{history_file, history_timestamp_format_string, saving_history}\n\ |
| 5794 | 694 @end deftypefn") |
| 3016 | 695 { |
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696 int old_history_size = command_history::size (); |
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697 |
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698 int tmp = old_history_size; |
| 5800 | 699 |
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700 octave_value retval = set_internal_variable (tmp, args, nargout, |
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701 "history_size", -1, |
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702 std::numeric_limits<int>::max ()); |
| 5800 | 703 |
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704 if (tmp != old_history_size) |
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705 command_history::set_size (tmp); |
| 5800 | 706 |
| 707 return retval; | |
| 3016 | 708 } |
| 709 | |
| 5794 | 710 DEFUN (history_file, args, nargout, |
| 711 "-*- texinfo -*-\n\ | |
| 10840 | 712 @deftypefn {Built-in Function} {@var{val} =} history_file ()\n\ |
| 5794 | 713 @deftypefnx {Built-in Function} {@var{old_val} =} history_file (@var{new_val})\n\ |
| 714 Query or set the internal variable that specifies the name of the\n\ | |
| 715 file used to store command history. The default value is\n\ | |
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716 @file{~/.octave_hist}, but may be overridden by the environment\n\ |
| 10840 | 717 variable @w{@env{OCTAVE_HISTFILE}}.\n\ |
| 5794 | 718 @seealso{history_size, saving_history, history_timestamp_format_string}\n\ |
| 719 @end deftypefn") | |
| 5305 | 720 { |
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721 std::string old_history_file = command_history::file (); |
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722 |
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723 std::string tmp = old_history_file; |
| 5305 | 724 |
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725 octave_value retval = set_internal_variable (tmp, args, nargout, |
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726 "history_file"); |
| 5305 | 727 |
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728 if (tmp != old_history_file) |
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729 command_history::set_file (tmp); |
| 5305 | 730 |
| 5800 | 731 return retval; |
| 3016 | 732 } |
| 733 | |
| 5794 | 734 DEFUN (history_timestamp_format_string, args, nargout, |
| 735 "-*- texinfo -*-\n\ | |
| 10840 | 736 @deftypefn {Built-in Function} {@var{val} =} history_timestamp_format_string ()\n\ |
| 5794 | 737 @deftypefnx {Built-in Function} {@var{old_val} =} history_timestamp_format_string (@var{new_val})\n\ |
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738 @deftypefnx {Built-in Function} {} history_timestamp_format_string (@var{new_val}, \"local\")\n\ |
| 6653 | 739 Query or set the internal variable that specifies the format string\n\ |
| 5794 | 740 for the comment line that is written to the history file when Octave\n\ |
| 741 exits. The format string is passed to @code{strftime}. The default\n\ | |
| 742 value is\n\ | |
| 5305 | 743 \n\ |
| 744 @example\n\ | |
| 745 \"# Octave VERSION, %a %b %d %H:%M:%S %Y %Z <USER@@HOST>\"\n\ | |
| 746 @end example\n\ | |
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747 \n\ |
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748 When called from inside a function with the \"local\" option, the variable is\n\ |
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749 changed locally for the function and any subroutines it calls. The original\n\ |
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750 variable value is restored when exiting the function.\n\ |
| 5794 | 751 @seealso{strftime, history_file, history_size, saving_history}\n\ |
| 752 @end deftypefn") | |
| 753 { | |
| 754 return SET_INTERNAL_VARIABLE (history_timestamp_format_string); | |
| 755 } | |
| 5305 | 756 |
| 5794 | 757 DEFUN (saving_history, args, nargout, |
| 758 "-*- texinfo -*-\n\ | |
| 10840 | 759 @deftypefn {Built-in Function} {@var{val} =} saving_history ()\n\ |
| 5794 | 760 @deftypefnx {Built-in Function} {@var{old_val} =} saving_history (@var{new_val})\n\ |
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761 @deftypefnx {Built-in Function} {} saving_history (@var{new_val}, \"local\")\n\ |
| 5794 | 762 Query or set the internal variable that controls whether commands entered\n\ |
| 763 on the command line are saved in the history file.\n\ | |
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764 \n\ |
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765 When called from inside a function with the \"local\" option, the variable is\n\ |
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766 changed locally for the function and any subroutines it calls. The original\n\ |
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767 variable value is restored when exiting the function.\n\ |
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768 @seealso{history_control, history_file, history_size, history_timestamp_format_string}\n\ |
| 5794 | 769 @end deftypefn") |
| 770 { | |
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771 bool old_saving_history = ! command_history::ignoring_entries (); |
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772 |
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773 bool tmp = old_saving_history; |
| 5794 | 774 |
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775 octave_value retval = set_internal_variable (tmp, args, nargout, |
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776 "saving_history"); |
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777 |
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778 if (tmp != old_saving_history) |
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779 command_history::ignore_entries (! tmp); |
| 5794 | 780 |
| 781 return retval; | |
| 3016 | 782 } |