Mercurial > octave-nkf
annotate src/oct-hist.cc @ 11273:bd2643f0ce57 ss-3-3-54
snapshot 3.3.54
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 19 Nov 2010 16:05:58 -0500 |
| parents | 89f4d7e294cc |
| children | 944b7e20fc5a |
| rev | line source |
|---|---|
| 1 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2003, |
| 8920 | 4 2005, 2006, 2007, 2008, 2009 John W. Eaton |
| 1 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 1 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 1 | 21 |
| 2939 | 22 */ |
| 23 | |
| 24 /* | |
| 25 | |
| 1 | 26 The functions listed below were adapted from similar functions from |
| 27 GNU Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 Free | |
| 28 Software Foundation, Inc. | |
| 29 | |
| 30 do_history edit_history_readline | |
| 31 do_edit_history edit_history_add_hist | |
| 32 | |
| 33 */ | |
| 34 | |
| 240 | 35 #ifdef HAVE_CONFIG_H |
| 1192 | 36 #include <config.h> |
| 1 | 37 #endif |
| 38 | |
| 1343 | 39 #include <cstdlib> |
| 40 #include <cstring> | |
| 41 | |
| 1750 | 42 #include <string> |
| 43 | |
| 3503 | 44 #include <fstream> |
| 1350 | 45 |
| 1 | 46 #include <sys/types.h> |
| 47 #include <unistd.h> | |
| 1350 | 48 |
| 1799 | 49 #include "cmd-hist.h" |
| 1802 | 50 #include "file-ops.h" |
| 3016 | 51 #include "lo-mappers.h" |
| 2926 | 52 #include "oct-env.h" |
| 5305 | 53 #include "oct-time.h" |
| 1755 | 54 #include "str-vec.h" |
| 55 | |
| 2492 | 56 #include <defaults.h> |
| 1352 | 57 #include "defun.h" |
| 1 | 58 #include "error.h" |
| 3016 | 59 #include "gripes.h" |
| 1 | 60 #include "input.h" |
| 1742 | 61 #include "oct-hist.h" |
| 1750 | 62 #include "oct-obj.h" |
| 1352 | 63 #include "pager.h" |
| 3018 | 64 #include "parse.h" |
| 1352 | 65 #include "sighandlers.h" |
| 1690 | 66 #include "sysdep.h" |
| 1750 | 67 #include "toplev.h" |
| 1352 | 68 #include "unwind-prot.h" |
| 69 #include "utils.h" | |
| 2205 | 70 #include "variables.h" |
| 1 | 71 |
| 3018 | 72 // TRUE means input is coming from temporary history file. |
| 73 bool input_from_tmp_history_file = false; | |
| 168 | 74 |
| 5305 | 75 static std::string |
| 1 | 76 default_history_file (void) |
| 77 { | |
| 3523 | 78 std::string file; |
| 1 | 79 |
| 3523 | 80 std::string env_file = octave_env::getenv ("OCTAVE_HISTFILE"); |
| 1755 | 81 |
| 2926 | 82 if (! env_file.empty ()) |
| 6141 | 83 file = env_file; |
| 1 | 84 |
| 1755 | 85 if (file.empty ()) |
| 7272 | 86 file = file_ops::concat (octave_env::get_home_directory (), |
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87 ".octave_hist"); |
| 1 | 88 |
| 89 return file; | |
| 90 } | |
| 91 | |
| 5794 | 92 // Where history is saved. |
| 93 static std::string Vhistory_file = default_history_file (); | |
| 94 | |
| 5305 | 95 static int |
| 96 default_history_size (void) | |
| 97 { | |
| 98 int size = 1024; | |
| 99 | |
| 100 std::string env_size = octave_env::getenv ("OCTAVE_HISTSIZE"); | |
| 101 | |
| 102 if (! env_size.empty ()) | |
| 103 { | |
| 104 int val; | |
| 105 | |
| 106 if (sscanf (env_size.c_str (), "%d", &val) == 1) | |
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107 size = val > 0 ? val : 0; |
| 5305 | 108 } |
| 109 | |
| 110 return size; | |
| 111 } | |
| 112 | |
| 5794 | 113 // The number of lines to keep in the history file. |
| 114 static int Vhistory_size = default_history_size (); | |
| 115 | |
| 5305 | 116 static std::string |
| 117 default_history_timestamp_format (void) | |
| 118 { | |
| 119 return | |
| 120 std::string ("# Octave " OCTAVE_VERSION ", %a %b %d %H:%M:%S %Y %Z <") | |
| 121 + octave_env::get_user_name () | |
| 122 + std::string ("@") | |
| 123 + octave_env::get_host_name () | |
| 124 + std::string (">"); | |
| 125 } | |
| 126 | |
| 5794 | 127 // The format of the timestamp marker written to the history file when |
| 128 // Octave exits. | |
| 129 static std::string Vhistory_timestamp_format_string | |
| 130 = default_history_timestamp_format (); | |
| 131 | |
| 132 // TRUE if we are saving history. | |
| 133 bool Vsaving_history = true; | |
| 134 | |
| 581 | 135 // Display, save, or load history. Stolen and modified from bash. |
| 136 // | |
| 137 // Arg of -w FILENAME means write file, arg of -r FILENAME | |
| 138 // means read file, arg of -q means don't number lines. Arg of N | |
| 139 // means only display that many items. | |
| 140 | |
| 1755 | 141 static void |
| 142 do_history (int argc, const string_vector& argv) | |
| 1 | 143 { |
| 144 int numbered_output = 1; | |
| 145 | |
| 1755 | 146 int i; |
| 147 for (i = 1; i < argc; i++) | |
| 1 | 148 { |
| 3523 | 149 std::string option = argv[i]; |
| 2435 | 150 |
| 151 if (option == "-r" || option == "-w" || option == "-a" | |
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152 || option == "-n") |
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153 { |
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154 if (i < argc - 1) |
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155 command_history::set_file (argv[i+1]); |
| 1 | 156 |
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157 if (option == "-a") |
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158 // Append `new' lines to file. |
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159 command_history::append (); |
| 2435 | 160 |
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161 else if (option == "-w") |
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162 // Write entire history. |
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163 command_history::write (); |
| 777 | 164 |
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165 else if (option == "-r") |
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166 // Read entire file. |
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167 command_history::read (); |
| 777 | 168 |
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169 else if (option == "-n") |
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170 // Read `new' history from file. |
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171 command_history::read_range (); |
| 777 | 172 |
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173 else |
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174 panic_impossible (); |
| 2435 | 175 |
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176 return; |
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177 } |
| 1755 | 178 else if (argv[i] == "-q") |
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179 numbered_output = 0; |
| 1755 | 180 else if (argv[i] == "--") |
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181 { |
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182 i++; |
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183 break; |
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184 } |
| 1 | 185 else |
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186 break; |
| 1 | 187 } |
| 188 | |
| 1799 | 189 int limit = -1; |
| 1 | 190 |
| 1755 | 191 if (i < argc) |
| 1 | 192 { |
| 1755 | 193 if (sscanf (argv[i].c_str (), "%d", &limit) != 1) |
| 1 | 194 { |
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195 if (argv[i][0] == '-') |
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196 error ("history: unrecognized option `%s'", argv[i].c_str ()); |
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197 else |
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198 error ("history: bad non-numeric arg `%s'", argv[i].c_str ()); |
| 1799 | 199 |
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200 return; |
| 1 | 201 } |
| 202 | |
| 203 if (limit < 0) | |
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204 limit = -limit; |
| 1799 | 205 } |
| 1 | 206 |
| 2926 | 207 string_vector hlist = command_history::list (limit, numbered_output); |
| 1 | 208 |
| 1799 | 209 int len = hlist.length (); |
| 210 | |
| 2095 | 211 for (i = 0; i < len; i++) |
| 212 octave_stdout << hlist[i] << "\n"; | |
| 1 | 213 } |
| 214 | |
| 581 | 215 // Read the edited history lines from STREAM and return them |
| 216 // one at a time. This can read unlimited length lines. The | |
| 2434 | 217 // caller should free the storage. |
| 581 | 218 |
| 1 | 219 static char * |
| 3551 | 220 edit_history_readline (std::fstream& stream) |
| 1 | 221 { |
| 222 char c; | |
| 223 int line_len = 128; | |
| 224 int lindex = 0; | |
| 225 char *line = new char [line_len]; | |
| 226 line[0] = '\0'; | |
| 227 | |
| 228 while (stream.get (c)) | |
| 229 { | |
| 230 if (lindex + 2 >= line_len) | |
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231 { |
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232 char *tmp_line = new char [line_len += 128]; |
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233 strcpy (tmp_line, line); |
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234 delete [] line; |
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235 line = tmp_line; |
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236 } |
| 1 | 237 |
| 238 if (c == '\n') | |
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239 { |
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240 line[lindex++] = '\n'; |
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241 line[lindex++] = '\0'; |
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242 return line; |
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243 } |
| 1 | 244 else |
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245 line[lindex++] = c; |
| 1 | 246 } |
| 247 | |
| 248 if (! lindex) | |
| 249 { | |
| 250 delete [] line; | |
| 529 | 251 return 0; |
| 1 | 252 } |
| 253 | |
| 254 if (lindex + 2 >= line_len) | |
| 255 { | |
| 256 char *tmp_line = new char [lindex+3]; | |
| 257 strcpy (tmp_line, line); | |
| 258 delete [] line; | |
| 259 line = tmp_line; | |
| 260 } | |
| 261 | |
| 1358 | 262 // Finish with newline if none in file. |
| 1 | 263 |
| 264 line[lindex++] = '\n'; | |
| 265 line[lindex++] = '\0'; | |
| 266 return line; | |
| 267 } | |
| 268 | |
| 581 | 269 // Use `command' to replace the last entry in the history list, which, |
| 270 // by this time, is `run_history blah...'. The intent is that the | |
| 1799 | 271 // new command becomes the history entry, and that `fc' should never |
| 581 | 272 // appear in the history list. This way you can do `run_history' to |
| 273 // your heart's content. | |
| 274 | |
| 64 | 275 static void |
| 3523 | 276 edit_history_repl_hist (const std::string& command) |
| 64 | 277 { |
| 1799 | 278 if (! command.empty ()) |
| 279 { | |
| 2926 | 280 string_vector hlist = command_history::list (); |
| 64 | 281 |
| 1799 | 282 int len = hlist.length (); |
| 64 | 283 |
| 1799 | 284 if (len > 0) |
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285 { |
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286 int i = len - 1; |
| 64 | 287 |
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288 std::string histent = command_history::get_entry (i); |
| 64 | 289 |
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290 if (! histent.empty ()) |
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291 { |
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292 std::string cmd = command; |
| 64 | 293 |
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294 int cmd_len = cmd.length (); |
| 64 | 295 |
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296 if (cmd[cmd_len - 1] == '\n') |
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297 cmd.resize (cmd_len - 1); |
| 64 | 298 |
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299 if (! cmd.empty ()) |
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300 command_history::replace_entry (i, cmd); |
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301 } |
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302 } |
| 64 | 303 } |
| 304 } | |
| 305 | |
| 1 | 306 static void |
| 3523 | 307 edit_history_add_hist (const std::string& line) |
| 1 | 308 { |
| 1799 | 309 if (! line.empty ()) |
| 1 | 310 { |
| 3523 | 311 std::string tmp = line; |
| 1 | 312 |
| 1799 | 313 int len = tmp.length (); |
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314 |
| 1799 | 315 if (len > 0 && tmp[len-1] == '\n') |
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316 tmp.resize (len - 1); |
| 1799 | 317 |
| 318 if (! tmp.empty ()) | |
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319 command_history::add (tmp); |
| 1 | 320 } |
| 321 } | |
| 322 | |
| 3536 | 323 static std::string |
| 1755 | 324 mk_tmp_hist_file (int argc, const string_vector& argv, |
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325 int insert_curr, const char *warn_for) |
| 1 | 326 { |
| 3523 | 327 std::string retval; |
| 1 | 328 |
| 2926 | 329 string_vector hlist = command_history::list (); |
| 1 | 330 |
| 1799 | 331 int hist_count = hlist.length (); |
| 1 | 332 |
| 1358 | 333 // The current command line is already part of the history list by |
| 334 // the time we get to this point. Delete it from the list. | |
| 1 | 335 |
| 336 hist_count -= 2; | |
| 1799 | 337 |
| 64 | 338 if (! insert_curr) |
| 2926 | 339 command_history::remove (hist_count); |
| 1799 | 340 |
| 1 | 341 hist_count--; |
| 342 | |
| 1358 | 343 // If no numbers have been specified, the default is to edit the |
| 344 // last command in the history list. | |
| 1 | 345 |
| 346 int hist_end = hist_count; | |
| 347 int hist_beg = hist_count; | |
| 348 int reverse = 0; | |
| 349 | |
| 1358 | 350 // Process options. |
| 1 | 351 |
| 352 int usage_error = 0; | |
| 353 if (argc == 3) | |
| 354 { | |
| 1755 | 355 if (sscanf (argv[1].c_str (), "%d", &hist_beg) != 1 |
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356 || sscanf (argv[2].c_str (), "%d", &hist_end) != 1) |
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357 usage_error = 1; |
| 1 | 358 else |
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359 { |
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360 hist_beg--; |
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361 hist_end--; |
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362 } |
| 1 | 363 } |
| 364 else if (argc == 2) | |
| 365 { | |
| 1755 | 366 if (sscanf (argv[1].c_str (), "%d", &hist_beg) != 1) |
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367 usage_error = 1; |
| 1 | 368 else |
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369 { |
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370 hist_beg--; |
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371 hist_end = hist_beg; |
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372 } |
| 1 | 373 } |
| 374 | |
| 375 if (hist_beg < 0 || hist_end < 0 || hist_beg > hist_count | |
| 376 || hist_end > hist_count) | |
| 377 { | |
| 64 | 378 error ("%s: history specification out of range", warn_for); |
| 1799 | 379 return retval; |
| 1 | 380 } |
| 381 | |
| 382 if (usage_error) | |
| 383 { | |
| 64 | 384 usage ("%s [first] [last]", warn_for); |
| 1799 | 385 return retval; |
| 1 | 386 } |
| 387 | |
| 388 if (hist_end < hist_beg) | |
| 389 { | |
| 390 int t = hist_end; | |
| 391 hist_end = hist_beg; | |
| 392 hist_beg = t; | |
| 393 reverse = 1; | |
| 394 } | |
| 395 | |
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396 std::string name = octave_tempnam ("", "oct-"); |
| 1 | 397 |
| 3551 | 398 std::fstream file (name.c_str (), std::ios::out); |
| 64 | 399 |
| 1 | 400 if (! file) |
| 401 { | |
| 1755 | 402 error ("%s: couldn't open temporary file `%s'", warn_for, |
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403 name.c_str ()); |
| 1799 | 404 return retval; |
| 1 | 405 } |
| 406 | |
| 407 if (reverse) | |
| 408 { | |
| 409 for (int i = hist_end; i >= hist_beg; i--) | |
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410 file << hlist[i] << "\n"; |
| 1 | 411 } |
| 412 else | |
| 413 { | |
| 414 for (int i = hist_beg; i <= hist_end; i++) | |
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415 file << hlist[i] << "\n"; |
| 1 | 416 } |
| 417 | |
| 418 file.close (); | |
| 419 | |
| 1755 | 420 return name; |
| 64 | 421 } |
| 422 | |
| 10411 | 423 static void |
| 424 unlink_cleanup (const char *file) | |
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425 { |
| 10411 | 426 gnulib::unlink (file); |
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427 } |
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428 |
| 1755 | 429 static void |
| 430 do_edit_history (int argc, const string_vector& argv) | |
| 64 | 431 { |
| 3523 | 432 std::string name = mk_tmp_hist_file (argc, argv, 0, "edit_history"); |
| 64 | 433 |
| 1755 | 434 if (name.empty ()) |
| 64 | 435 return; |
| 436 | |
| 1358 | 437 // Call up our favorite editor on the file of commands. |
| 1 | 438 |
| 5794 | 439 std::string cmd = VEDITOR; |
| 4469 | 440 cmd.append (" \""); |
| 1799 | 441 cmd.append (name); |
| 4469 | 442 cmd.append ("\""); |
| 1 | 443 |
| 1358 | 444 // Ignore interrupts while we are off editing commands. Should we |
| 445 // maybe avoid using system()? | |
| 1 | 446 |
| 2705 | 447 volatile octave_interrupt_handler old_interrupt_handler |
| 2554 | 448 = octave_ignore_interrupts (); |
| 1443 | 449 |
| 1799 | 450 system (cmd.c_str ()); |
| 1443 | 451 |
| 2554 | 452 octave_set_interrupt_handler (old_interrupt_handler); |
| 1 | 453 |
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454 // Write the commands to the history file since source_file |
| 1358 | 455 // disables command line history while it executes. |
| 1 | 456 |
| 3551 | 457 std::fstream file (name.c_str (), std::ios::in); |
| 1 | 458 |
| 459 char *line; | |
| 64 | 460 int first = 1; |
| 529 | 461 while ((line = edit_history_readline (file)) != 0) |
| 1 | 462 { |
| 1358 | 463 // Skip blank lines. |
| 1 | 464 |
| 465 if (line[0] == '\n') | |
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466 { |
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467 delete [] line; |
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468 continue; |
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469 } |
| 1 | 470 |
| 64 | 471 if (first) |
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472 { |
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473 first = 0; |
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474 edit_history_repl_hist (line); |
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475 } |
| 64 | 476 else |
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477 edit_history_add_hist (line); |
| 1 | 478 } |
| 479 | |
| 480 file.close (); | |
| 481 | |
| 1358 | 482 // Turn on command echo, so the output from this will make better |
| 483 // sense. | |
| 1 | 484 |
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485 unwind_protect frame; |
| 3018 | 486 |
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487 frame.add_fcn (unlink_cleanup, name.c_str ()); |
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488 frame.protect_var (Vecho_executing_commands); |
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489 frame.protect_var (input_from_tmp_history_file); |
| 3018 | 490 |
| 2205 | 491 Vecho_executing_commands = ECHO_CMD_LINE; |
| 3018 | 492 input_from_tmp_history_file = true; |
| 1 | 493 |
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494 source_file (name); |
| 1 | 495 } |
| 496 | |
| 1755 | 497 static void |
| 498 do_run_history (int argc, const string_vector& argv) | |
| 64 | 499 { |
| 3523 | 500 std::string name = mk_tmp_hist_file (argc, argv, 1, "run_history"); |
| 64 | 501 |
| 1755 | 502 if (name.empty ()) |
| 64 | 503 return; |
| 504 | |
| 1799 | 505 // Turn on command echo so the output from this will make better |
| 1358 | 506 // sense. |
| 64 | 507 |
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508 unwind_protect frame; |
| 3018 | 509 |
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510 frame.add_fcn (unlink_cleanup, name.c_str ()); |
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511 frame.protect_var (Vecho_executing_commands); |
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512 frame.protect_var (input_from_tmp_history_file); |
| 3018 | 513 |
| 2205 | 514 Vecho_executing_commands = ECHO_CMD_LINE; |
| 3018 | 515 input_from_tmp_history_file = true; |
| 64 | 516 |
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517 source_file (name); |
| 64 | 518 } |
| 519 | |
| 5305 | 520 void |
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521 initialize_history (bool read_history_file) |
| 5794 | 522 { |
| 5872 | 523 command_history::set_file (Vhistory_file); |
| 5800 | 524 command_history::set_size (Vhistory_size); |
| 525 | |
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526 if (read_history_file) |
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527 command_history::read (false); |
| 5794 | 528 } |
| 529 | |
| 530 void | |
| 5305 | 531 octave_history_write_timestamp (void) |
| 532 { | |
| 533 octave_localtime now; | |
| 534 | |
| 535 std::string timestamp = now.strftime (Vhistory_timestamp_format_string); | |
| 536 | |
| 537 if (! timestamp.empty ()) | |
| 538 command_history::add (timestamp); | |
| 539 } | |
| 540 | |
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541 DEFUN (edit_history, args, , |
| 3332 | 542 "-*- texinfo -*-\n\ |
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543 @deffn {Command} edit_history [@var{first}] [@var{last}]\n\ |
| 3332 | 544 If invoked with no arguments, @code{edit_history} allows you to edit the\n\ |
| 10840 | 545 history list using the editor named by the variable @w{@env{EDITOR}}. The\n\ |
| 3332 | 546 commands to be edited are first copied to a temporary file. When you\n\ |
| 547 exit the editor, Octave executes the commands that remain in the file.\n\ | |
| 548 It is often more convenient to use @code{edit_history} to define functions \n\ | |
| 549 rather than attempting to enter them directly on the command line.\n\ | |
| 550 By default, the block of commands is executed as soon as you exit the\n\ | |
| 551 editor. To avoid executing any commands, simply delete all the lines\n\ | |
| 552 from the buffer before exiting the editor.\n\ | |
| 553 \n\ | |
| 554 The @code{edit_history} command takes two optional arguments specifying\n\ | |
| 555 the history numbers of first and last commands to edit. For example,\n\ | |
| 556 the command\n\ | |
| 529 | 557 \n\ |
| 3332 | 558 @example\n\ |
| 559 edit_history 13\n\ | |
| 560 @end example\n\ | |
| 561 \n\ | |
| 562 @noindent\n\ | |
| 563 extracts all the commands from the 13th through the last in the history\n\ | |
| 564 list. The command\n\ | |
| 565 \n\ | |
| 566 @example\n\ | |
| 567 edit_history 13 169\n\ | |
| 568 @end example\n\ | |
| 569 \n\ | |
| 570 @noindent\n\ | |
| 571 only extracts commands 13 through 169. Specifying a larger number for\n\ | |
| 572 the first command than the last command reverses the list of commands\n\ | |
| 573 before placing them in the buffer to be edited. If both arguments are\n\ | |
| 574 omitted, the previous command in the history list is used.\n\ | |
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575 @seealso{run_history}\n\ |
| 3333 | 576 @end deffn") |
| 529 | 577 { |
| 2086 | 578 octave_value_list retval; |
| 529 | 579 |
| 1755 | 580 int argc = args.length () + 1; |
| 581 | |
| 1968 | 582 string_vector argv = args.make_argv ("edit_history"); |
| 1755 | 583 |
| 584 if (error_state) | |
| 585 return retval; | |
| 529 | 586 |
| 587 do_edit_history (argc, argv); | |
| 588 | |
| 589 return retval; | |
| 590 } | |
| 591 | |
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592 DEFUN (history, args, , |
| 3332 | 593 "-*- texinfo -*-\n\ |
| 594 @deffn {Command} history options\n\ | |
| 595 If invoked with no arguments, @code{history} displays a list of commands\n\ | |
| 596 that you have executed. Valid options are:\n\ | |
| 597 \n\ | |
| 598 @table @code\n\ | |
| 599 @item -w @var{file}\n\ | |
| 600 Write the current history to the file @var{file}. If the name is\n\ | |
| 601 omitted, use the default history file (normally @file{~/.octave_hist}).\n\ | |
| 529 | 602 \n\ |
| 3332 | 603 @item -r @var{file}\n\ |
| 604 Read the file @var{file}, replacing the current history list with its\n\ | |
| 605 contents. If the name is omitted, use the default history file\n\ | |
| 606 (normally @file{~/.octave_hist}).\n\ | |
| 607 \n\ | |
| 3499 | 608 @item @var{n}\n\ |
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609 Display only the most recent @var{n} lines of history.\n\ |
| 3332 | 610 \n\ |
| 611 @item -q\n\ | |
| 612 Don't number the displayed lines of history. This is useful for cutting\n\ | |
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613 and pasting commands using the X Window System.\n\ |
| 3332 | 614 @end table\n\ |
| 615 \n\ | |
| 616 For example, to display the five most recent commands that you have\n\ | |
| 617 typed without displaying line numbers, use the command\n\ | |
| 618 @kbd{history -q 5}.\n\ | |
| 3333 | 619 @end deffn") |
| 529 | 620 { |
| 2086 | 621 octave_value_list retval; |
| 529 | 622 |
| 1755 | 623 int argc = args.length () + 1; |
| 624 | |
| 1968 | 625 string_vector argv = args.make_argv ("history"); |
| 1755 | 626 |
| 627 if (error_state) | |
| 628 return retval; | |
| 529 | 629 |
| 630 do_history (argc, argv); | |
| 631 | |
| 632 return retval; | |
| 633 } | |
| 634 | |
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635 DEFUN (run_history, args, , |
| 3332 | 636 "-*- texinfo -*-\n\ |
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637 @deffn {Command} run_history [@var{first}] [@var{last}]\n\ |
| 3332 | 638 Similar to @code{edit_history}, except that the editor is not invoked,\n\ |
| 639 and the commands are simply executed as they appear in the history list.\n\ | |
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640 @seealso{edit_history}\n\ |
| 3333 | 641 @end deffn") |
| 529 | 642 { |
| 2086 | 643 octave_value_list retval; |
| 529 | 644 |
| 1755 | 645 int argc = args.length () + 1; |
| 646 | |
| 1968 | 647 string_vector argv = args.make_argv ("run_history"); |
| 1755 | 648 |
| 649 if (error_state) | |
| 650 return retval; | |
| 529 | 651 |
| 652 do_run_history (argc, argv); | |
| 653 | |
| 654 return retval; | |
| 655 } | |
| 656 | |
| 5794 | 657 DEFUN (history_size, args, nargout, |
| 658 "-*- texinfo -*-\n\ | |
| 10840 | 659 @deftypefn {Built-in Function} {@var{val} =} history_size ()\n\ |
| 5794 | 660 @deftypefnx {Built-in Function} {@var{old_val} =} history_size (@var{new_val})\n\ |
| 661 Query or set the internal variable that specifies how many entries\n\ | |
| 662 to store in the history file. The default value is @code{1024},\n\ | |
| 10840 | 663 but may be overridden by the environment variable @w{@env{OCTAVE_HISTSIZE}}.\n\ |
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664 @seealso{history_file, history_timestamp_format_string, saving_history}\n\ |
| 5794 | 665 @end deftypefn") |
| 3016 | 666 { |
| 5800 | 667 int saved_history_size = Vhistory_size; |
| 668 | |
| 669 octave_value retval | |
| 670 = SET_INTERNAL_VARIABLE_WITH_LIMITS (history_size, -1, INT_MAX); | |
| 671 | |
| 672 if (Vhistory_size != saved_history_size) | |
| 673 command_history::set_size (Vhistory_size); | |
| 674 | |
| 675 return retval; | |
| 3016 | 676 } |
| 677 | |
| 5794 | 678 DEFUN (history_file, args, nargout, |
| 679 "-*- texinfo -*-\n\ | |
| 10840 | 680 @deftypefn {Built-in Function} {@var{val} =} history_file ()\n\ |
| 5794 | 681 @deftypefnx {Built-in Function} {@var{old_val} =} history_file (@var{new_val})\n\ |
| 682 Query or set the internal variable that specifies the name of the\n\ | |
| 683 file used to store command history. The default value is\n\ | |
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684 @file{~/.octave_hist}, but may be overridden by the environment\n\ |
| 10840 | 685 variable @w{@env{OCTAVE_HISTFILE}}.\n\ |
| 5794 | 686 @seealso{history_size, saving_history, history_timestamp_format_string}\n\ |
| 687 @end deftypefn") | |
| 5305 | 688 { |
| 5794 | 689 std::string saved_history_file = Vhistory_file; |
| 5305 | 690 |
| 5794 | 691 octave_value retval = SET_INTERNAL_VARIABLE (history_file); |
| 5305 | 692 |
| 5794 | 693 if (Vhistory_file != saved_history_file) |
| 5872 | 694 command_history::set_file (Vhistory_file); |
| 5305 | 695 |
| 5800 | 696 return retval; |
| 3016 | 697 } |
| 698 | |
| 5794 | 699 DEFUN (history_timestamp_format_string, args, nargout, |
| 700 "-*- texinfo -*-\n\ | |
| 10840 | 701 @deftypefn {Built-in Function} {@var{val} =} history_timestamp_format_string ()\n\ |
| 5794 | 702 @deftypefnx {Built-in Function} {@var{old_val} =} history_timestamp_format_string (@var{new_val})\n\ |
| 6653 | 703 Query or set the internal variable that specifies the format string\n\ |
| 5794 | 704 for the comment line that is written to the history file when Octave\n\ |
| 705 exits. The format string is passed to @code{strftime}. The default\n\ | |
| 706 value is\n\ | |
| 5305 | 707 \n\ |
| 708 @example\n\ | |
| 709 \"# Octave VERSION, %a %b %d %H:%M:%S %Y %Z <USER@@HOST>\"\n\ | |
| 710 @end example\n\ | |
| 5794 | 711 @seealso{strftime, history_file, history_size, saving_history}\n\ |
| 712 @end deftypefn") | |
| 713 { | |
| 714 return SET_INTERNAL_VARIABLE (history_timestamp_format_string); | |
| 715 } | |
| 5305 | 716 |
| 5794 | 717 DEFUN (saving_history, args, nargout, |
| 718 "-*- texinfo -*-\n\ | |
| 10840 | 719 @deftypefn {Built-in Function} {@var{val} =} saving_history ()\n\ |
| 5794 | 720 @deftypefnx {Built-in Function} {@var{old_val} =} saving_history (@var{new_val})\n\ |
| 721 Query or set the internal variable that controls whether commands entered\n\ | |
| 722 on the command line are saved in the history file.\n\ | |
|
8286
6f2d95255911
fix @seealso references to point to existing anchors
Thorsten Meyer <thorsten.meyier@gmx.de>
parents:
8273
diff
changeset
|
723 @seealso{history_file, history_size, history_timestamp_format_string}\n\ |
| 5794 | 724 @end deftypefn") |
| 725 { | |
| 726 octave_value retval = SET_INTERNAL_VARIABLE (saving_history); | |
| 727 | |
| 728 command_history::ignore_entries (! Vsaving_history); | |
| 729 | |
| 730 return retval; | |
| 3016 | 731 } |