Mercurial > hg > octave-nkf
annotate src/sysdep.cc @ 12111:050b8c0e1531 release-3-2-x
correct previous patch
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Thu, 26 Nov 2009 14:39:55 +0100 |
| parents | efdc5df061b6 |
| children | cd96d29c5efa |
| 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 |
| 22 */ | |
| 23 | |
| 240 | 24 #ifdef HAVE_CONFIG_H |
| 1192 | 25 #include <config.h> |
| 1 | 26 #endif |
| 27 | |
| 1346 | 28 #include <cfloat> |
| 1343 | 29 #include <cstddef> |
| 1346 | 30 #include <cstdio> |
| 1343 | 31 #include <cstdlib> |
| 32 #include <cstring> | |
| 33 | |
| 3503 | 34 #include <iostream> |
| 1728 | 35 #include <string> |
| 36 | |
| 1350 | 37 #ifdef HAVE_UNISTD_H |
| 2442 | 38 #ifdef HAVE_SYS_TYPES_H |
| 529 | 39 #include <sys/types.h> |
| 2442 | 40 #endif |
| 529 | 41 #include <unistd.h> |
| 42 #endif | |
| 1 | 43 |
| 1430 | 44 #if defined (HAVE_TERMIOS_H) |
| 45 #include <termios.h> | |
| 46 #elif defined (HAVE_TERMIO_H) | |
| 47 #include <termio.h> | |
| 48 #elif defined (HAVE_SGTTY_H) | |
| 49 #include <sgtty.h> | |
| 4067 | 50 #endif |
| 51 | |
| 52 #if defined (HAVE_CONIO_H) | |
| 53 #include <conio.h> | |
| 1430 | 54 #endif |
| 55 | |
| 3248 | 56 #if defined (HAVE_SYS_IOCTL_H) |
| 57 #include <sys/ioctl.h> | |
| 58 #endif | |
| 59 | |
| 1463 | 60 #if defined (HAVE_FLOATINGPOINT_H) |
| 61 #include <floatingpoint.h> | |
| 62 #endif | |
| 63 | |
| 2508 | 64 #if defined (HAVE_IEEEFP_H) |
| 65 #include <ieeefp.h> | |
| 66 #endif | |
| 67 | |
| 1463 | 68 #if !defined (HAVE_GETHOSTNAME) && defined (HAVE_SYS_UTSNAME_H) |
| 69 #include <sys/utsname.h> | |
| 70 #endif | |
| 71 | |
| 2926 | 72 #include "cmd-edit.h" |
| 73 #include "file-ops.h" | |
| 2893 | 74 #include "lo-mappers.h" |
| 7231 | 75 #include "lo-math.h" |
| 2317 | 76 #include "mach-info.h" |
| 2926 | 77 #include "oct-env.h" |
| 5451 | 78 #include "quit.h" |
| 1769 | 79 |
| 6208 | 80 #include "Cell.h" |
| 1352 | 81 #include "defun.h" |
| 82 #include "error.h" | |
| 529 | 83 #include "input.h" |
| 1755 | 84 #include "oct-obj.h" |
| 2370 | 85 #include "ov.h" |
| 3234 | 86 #include "pager.h" |
| 6419 | 87 #include "parse.h" |
| 5770 | 88 #include "sighandlers.h" |
| 1352 | 89 #include "sysdep.h" |
| 1755 | 90 #include "toplev.h" |
| 529 | 91 #include "utils.h" |
| 6598 | 92 #include "file-stat.h" |
| 529 | 93 |
| 94 #ifndef STDIN_FILENO | |
| 95 #define STDIN_FILENO 1 | |
| 96 #endif | |
| 444 | 97 |
|
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Aleksej Saushev <asau@inbox.ru>
parents:
12028
diff
changeset
|
98 #if defined (__386BSD__) || defined (__FreeBSD__) || defined (__NetBSD__) |
| 2508 | 99 static void |
| 100 BSD_init (void) | |
| 101 { | |
| 102 #if defined (HAVE_FLOATINGPOINT_H) | |
| 103 // Disable trapping on common exceptions. | |
| 4164 | 104 #ifndef FP_X_DNML |
| 105 #define FP_X_DNML 0 | |
| 106 #endif | |
| 2508 | 107 fpsetmask (~(FP_X_OFL|FP_X_INV|FP_X_DZ|FP_X_DNML|FP_X_UFL|FP_X_IMP)); |
| 108 #endif | |
| 109 } | |
| 110 #endif | |
| 111 | |
| 6956 | 112 #if defined (__WIN32__) && ! defined (_POSIX_VERSION) |
| 6080 | 113 static void |
| 114 w32_set_octave_home (void) | |
| 115 { | |
| 116 int n = 1024; | |
| 117 | |
| 6086 | 118 std::string bin_dir (n, '\0'); |
| 6080 | 119 |
| 120 while (true) | |
| 121 { | |
| 6954 | 122 HMODULE hMod = GetModuleHandle ("octinterp"); |
| 123 int status = GetModuleFileName (hMod, &bin_dir[0], n); | |
| 6080 | 124 |
| 125 if (status < n) | |
| 126 { | |
| 127 bin_dir.resize (status); | |
| 128 break; | |
| 129 } | |
| 130 else | |
| 131 { | |
| 132 n *= 2; | |
| 133 bin_dir.resize (n); | |
| 134 } | |
| 135 } | |
| 136 | |
| 137 if (! bin_dir.empty ()) | |
| 138 { | |
| 139 size_t pos = bin_dir.rfind ("\\bin\\"); | |
| 140 | |
| 8021 | 141 if (pos != std::string::npos) |
| 6080 | 142 octave_env::putenv ("OCTAVE_HOME", bin_dir.substr (0, pos)); |
| 143 } | |
| 144 } | |
| 145 | |
| 6960 | 146 void |
| 5451 | 147 w32_set_quiet_shutdown (void) |
| 148 { | |
| 149 // Let the user close the console window or shutdown without the | |
| 150 // pesky dialog. | |
| 151 // | |
| 5775 | 152 // FIXME -- should this be user configurable? |
| 5451 | 153 SetProcessShutdownParameters (0x280, SHUTDOWN_NORETRY); |
| 154 } | |
| 155 | |
| 6960 | 156 void |
| 5451 | 157 MINGW_signal_cleanup (void) |
| 158 { | |
| 5455 | 159 w32_set_quiet_shutdown (); |
| 5451 | 160 |
| 5455 | 161 w32_raise_final (); |
| 5451 | 162 } |
| 163 #endif | |
| 164 | |
| 165 #if defined (__MINGW32__) | |
| 166 static void | |
| 167 MINGW_init (void) | |
| 168 { | |
| 6080 | 169 w32_set_octave_home (); |
| 170 | |
| 5451 | 171 // Init mutex to protect setjmp/longjmp and get main thread context |
| 172 w32_sigint_init (); | |
| 173 | |
| 174 w32_set_quiet_shutdown (); | |
| 175 } | |
| 176 #endif | |
| 177 | |
| 6080 | 178 #if defined (_MSC_VER) |
| 179 static void | |
| 180 MSVC_init (void) | |
| 181 { | |
| 182 w32_set_octave_home (); | |
| 6135 | 183 |
| 184 // Init mutex to protect setjmp/longjmp and get main thread context | |
| 185 w32_sigint_init (); | |
| 186 | |
| 187 w32_set_quiet_shutdown (); | |
| 6080 | 188 } |
| 189 #endif | |
| 190 | |
| 4091 | 191 |
| 6598 | 192 // Return TRUE if FILE1 and FILE2 refer to the same (physical) file. |
| 193 | |
| 194 bool | |
| 195 same_file_internal (const std::string& file1, const std::string& file2) | |
| 196 { | |
| 197 #ifdef OCTAVE_USE_WINDOWS_API | |
| 198 | |
| 6691 | 199 bool retval = false; |
| 200 | |
| 6598 | 201 // Windows native code |
| 202 // Reference: http://msdn2.microsoft.com/en-us/library/aa363788.aspx | |
| 203 | |
| 6691 | 204 HANDLE hfile1 = CreateFile (file1.c_str (), 0, FILE_SHARE_READ, 0, |
| 205 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
| 206 | |
| 207 if (hfile1 != INVALID_HANDLE_VALUE) | |
| 208 { | |
| 209 HANDLE hfile2 = CreateFile (file2.c_str (), 0, FILE_SHARE_READ, 0, | |
| 210 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
| 6598 | 211 |
| 6691 | 212 if (hfile2 != INVALID_HANDLE_VALUE) |
| 213 { | |
| 214 BY_HANDLE_FILE_INFORMATION hfi1; | |
| 215 BY_HANDLE_FILE_INFORMATION hfi2; | |
| 216 | |
| 217 if (GetFileInformationByHandle (hfile1, &hfi1) | |
| 218 && GetFileInformationByHandle (hfile2, &hfi2)) | |
| 6598 | 219 |
| 6691 | 220 retval = (hfi1.dwVolumeSerialNumber == hfi2.dwVolumeSerialNumber |
| 221 && hfi1.nFileIndexHigh == hfi2.nFileIndexHigh | |
| 222 && hfi1.nFileIndexLow == hfi2.nFileIndexLow); | |
| 6598 | 223 |
| 6691 | 224 CloseHandle (hfile2); |
| 225 } | |
| 226 | |
| 6598 | 227 CloseHandle (hfile1); |
| 228 } | |
| 6691 | 229 |
| 230 return retval; | |
| 6598 | 231 |
| 232 #else | |
| 233 | |
| 234 // POSIX Code | |
| 235 | |
| 236 file_stat fs_file1 (file1); | |
| 237 file_stat fs_file2 (file2); | |
| 238 | |
| 239 return (fs_file1 && fs_file2 | |
| 240 && fs_file1.ino () == fs_file2.ino () | |
| 241 && fs_file1.dev () == fs_file2.dev ()); | |
| 242 | |
| 243 #endif | |
| 244 } | |
| 245 | |
| 4284 | 246 #if defined (__DECCXX) |
| 247 | |
| 248 // These don't seem to be instantiated automatically... | |
| 249 | |
| 250 template std::istream& | |
| 251 std::operator >> (std::istream&, std::complex<double>&); | |
| 252 | |
| 253 template std::string& | |
| 254 std::string::append (const std::string&, size_t, size_t); | |
| 255 | |
| 256 #endif | |
| 257 | |
| 2610 | 258 #if defined (NeXT) |
| 1 | 259 extern "C" |
| 260 { | |
| 261 typedef void (*_cplus_fcn_int) (int); | |
| 262 extern void (*malloc_error (_cplus_fcn_int)) (int); | |
| 263 } | |
| 264 | |
| 265 static void | |
| 266 malloc_handler (int code) | |
| 267 { | |
| 268 if (code == 5) | |
| 217 | 269 warning ("hopefully recoverable malloc error: freeing wild pointer"); |
| 1 | 270 else |
| 2926 | 271 panic ("probably irrecoverable malloc error: code %d", code); |
| 1 | 272 } |
| 273 | |
| 274 static void | |
| 275 NeXT_init (void) | |
| 276 { | |
| 277 malloc_error (malloc_handler); | |
| 278 } | |
| 3333 | 279 #endif |
| 1 | 280 |
| 2546 | 281 #if defined (__EMX__) |
| 282 OS2_init (void) | |
| 283 { | |
| 284 _control87 ((EM_INVALID | EM_DENORMAL | EM_ZERODIVIDE | EM_OVERFLOW | |
| 285 | EM_UNDERFLOW | EM_INEXACT), MCW_EM); | |
| 286 } | |
| 287 #endif | |
| 288 | |
| 2508 | 289 #if defined (SCO) |
| 290 static void | |
| 291 SCO_init (void) | |
| 292 { | |
| 293 #if defined (HAVE_IEEEFP_H) | |
| 294 // Disable trapping on common exceptions. | |
| 295 fpsetmask (~(FP_X_OFL|FP_X_INV|FP_X_DZ|FP_X_DNML|FP_X_UFL|FP_X_IMP)); | |
| 296 #endif | |
| 297 } | |
| 298 #endif | |
| 299 | |
| 1 | 300 void |
| 301 sysdep_init (void) | |
| 302 { | |
|
12046
efdc5df061b6
initialize floating point values properly for NetBSD systems
Aleksej Saushev <asau@inbox.ru>
parents:
12028
diff
changeset
|
303 #if defined (__386BSD__) || defined (__FreeBSD__) || defined(__NetBSD__) |
| 2508 | 304 BSD_init (); |
| 5451 | 305 #elif defined (__MINGW32__) |
| 306 MINGW_init (); | |
| 6080 | 307 #elif defined (_MSC_VER) |
| 308 MSVC_init (); | |
| 2610 | 309 #elif defined (NeXT) |
| 1 | 310 NeXT_init (); |
| 2610 | 311 #elif defined (__EMX__) |
| 2546 | 312 OS2_init (); |
| 2508 | 313 #elif defined (SCO) |
| 314 SCO_init (); | |
| 1 | 315 #endif |
| 444 | 316 |
| 317 octave_ieee_init (); | |
| 1 | 318 } |
| 319 | |
| 5451 | 320 void |
| 321 sysdep_cleanup (void) | |
| 322 { | |
| 323 MINGW_SIGNAL_CLEANUP (); | |
| 324 } | |
| 325 | |
| 767 | 326 // Set terminal in raw mode. From less-177. |
| 327 // | |
| 328 // Change terminal to "raw mode", or restore to "normal" mode. | |
| 329 // "Raw mode" means | |
| 330 // 1. An outstanding read will complete on receipt of a single keystroke. | |
| 331 // 2. Input is not echoed. | |
| 332 // 3. On output, \n is mapped to \r\n. | |
| 333 // 4. \t is NOT expanded into spaces. | |
| 334 // 5. Signal-causing characters such as ctrl-C (interrupt), | |
| 335 // etc. are NOT disabled. | |
| 336 // It doesn't matter whether an input \n is mapped to \r, or vice versa. | |
| 337 | |
| 529 | 338 void |
| 3657 | 339 raw_mode (bool on, bool wait) |
| 529 | 340 { |
| 3657 | 341 static bool curr_on = false; |
| 529 | 342 |
| 343 int tty_fd = STDIN_FILENO; | |
| 344 if (! isatty (tty_fd)) | |
| 345 { | |
| 346 if (interactive) | |
| 347 error ("stdin is not a tty!"); | |
| 348 return; | |
| 349 } | |
| 350 | |
| 351 if (on == curr_on) | |
| 352 return; | |
| 353 | |
| 354 #if defined (HAVE_TERMIOS_H) | |
| 355 { | |
| 356 struct termios s; | |
| 357 static struct termios save_term; | |
| 358 | |
| 359 if (on) | |
| 360 { | |
| 1358 | 361 // Get terminal modes. |
| 529 | 362 |
| 363 tcgetattr (tty_fd, &s); | |
| 364 | |
| 1358 | 365 // Save modes and set certain variables dependent on modes. |
| 529 | 366 |
| 367 save_term = s; | |
| 368 // ospeed = s.c_cflag & CBAUD; | |
| 369 // erase_char = s.c_cc[VERASE]; | |
| 370 // kill_char = s.c_cc[VKILL]; | |
| 371 | |
| 1358 | 372 // Set the modes to the way we want them. |
| 529 | 373 |
| 374 s.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL); | |
| 375 s.c_oflag |= (OPOST|ONLCR); | |
| 376 #if defined (OCRNL) | |
| 377 s.c_oflag &= ~(OCRNL); | |
| 378 #endif | |
| 379 #if defined (ONOCR) | |
| 380 s.c_oflag &= ~(ONOCR); | |
| 381 #endif | |
| 382 #if defined (ONLRET) | |
| 383 s.c_oflag &= ~(ONLRET); | |
| 384 #endif | |
| 3658 | 385 s.c_cc[VMIN] = wait ? 1 : 0; |
| 529 | 386 s.c_cc[VTIME] = 0; |
| 387 } | |
| 388 else | |
| 389 { | |
| 1358 | 390 // Restore saved modes. |
| 391 | |
| 529 | 392 s = save_term; |
| 393 } | |
| 3658 | 394 |
|
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fix kbhit(1) to not discard waiting keystrokes
Joe Rothweiler <octaveuser@sensicomm.com>
parents:
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diff
changeset
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395 tcsetattr (tty_fd, wait ? TCSAFLUSH : TCSADRAIN, &s); |
| 529 | 396 } |
| 397 #elif defined (HAVE_TERMIO_H) | |
| 398 { | |
| 399 struct termio s; | |
| 400 static struct termio save_term; | |
| 401 | |
| 402 if (on) | |
| 403 { | |
| 1358 | 404 // Get terminal modes. |
| 529 | 405 |
| 406 ioctl (tty_fd, TCGETA, &s); | |
| 407 | |
| 1358 | 408 // Save modes and set certain variables dependent on modes. |
| 529 | 409 |
| 410 save_term = s; | |
| 411 // ospeed = s.c_cflag & CBAUD; | |
| 412 // erase_char = s.c_cc[VERASE]; | |
| 413 // kill_char = s.c_cc[VKILL]; | |
| 414 | |
| 1358 | 415 // Set the modes to the way we want them. |
| 529 | 416 |
| 417 s.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL); | |
| 418 s.c_oflag |= (OPOST|ONLCR); | |
| 419 #if defined (OCRNL) | |
| 420 s.c_oflag &= ~(OCRNL); | |
| 421 #endif | |
| 422 #if defined (ONOCR) | |
| 423 s.c_oflag &= ~(ONOCR); | |
| 424 #endif | |
| 425 #if defined (ONLRET) | |
| 426 s.c_oflag &= ~(ONLRET); | |
| 427 #endif | |
| 3658 | 428 s.c_cc[VMIN] = wait ? 1 : 0; |
| 529 | 429 } |
| 430 else | |
| 431 { | |
| 1358 | 432 // Restore saved modes. |
| 433 | |
| 529 | 434 s = save_term; |
| 435 } | |
| 3658 | 436 |
| 529 | 437 ioctl (tty_fd, TCSETAW, &s); |
| 438 } | |
| 439 #elif defined (HAVE_SGTTY_H) | |
| 440 { | |
| 441 struct sgttyb s; | |
| 442 static struct sgttyb save_term; | |
| 443 | |
| 444 if (on) | |
| 445 { | |
| 1358 | 446 // Get terminal modes. |
| 529 | 447 |
| 448 ioctl (tty_fd, TIOCGETP, &s); | |
| 449 | |
| 1358 | 450 // Save modes and set certain variables dependent on modes. |
| 529 | 451 |
| 452 save_term = s; | |
| 453 // ospeed = s.sg_ospeed; | |
| 454 // erase_char = s.sg_erase; | |
| 455 // kill_char = s.sg_kill; | |
| 456 | |
| 1358 | 457 // Set the modes to the way we want them. |
| 529 | 458 |
| 459 s.sg_flags |= CBREAK; | |
| 460 s.sg_flags &= ~(ECHO); | |
| 461 } | |
| 462 else | |
| 463 { | |
| 1358 | 464 // Restore saved modes. |
| 465 | |
| 529 | 466 s = save_term; |
| 467 } | |
| 3658 | 468 |
| 529 | 469 ioctl (tty_fd, TIOCSETN, &s); |
| 470 } | |
| 471 #else | |
| 4064 | 472 warning ("no support for raw mode console I/O on this system"); |
| 473 | |
| 474 // Make sure the current mode doesn't toggle. | |
| 475 on = curr_on; | |
| 529 | 476 #endif |
| 477 | |
| 478 curr_on = on; | |
| 479 } | |
| 480 | |
| 6726 | 481 FILE * |
| 482 octave_popen (const char *command, const char *mode) | |
| 483 { | |
| 484 #if defined (__MINGW32__) || defined (_MSC_VER) | |
| 485 if (mode && mode[0] && ! mode[1]) | |
| 486 { | |
| 487 char tmode[3]; | |
| 488 tmode[0] = mode[0]; | |
| 489 tmode[1] = 'b'; | |
| 490 tmode[2] = 0; | |
| 491 | |
| 492 return _popen (command, tmode); | |
| 493 } | |
| 494 else | |
| 495 return _popen (command, mode); | |
| 496 #else | |
| 497 return popen (command, mode); | |
| 498 #endif | |
| 499 } | |
| 500 | |
| 501 int | |
| 502 octave_pclose (FILE *f) | |
| 503 { | |
| 504 #if defined (__MINGW32__) || defined (_MSC_VER) | |
| 505 return _pclose (f); | |
| 506 #else | |
| 507 return pclose (f); | |
| 508 #endif | |
| 509 } | |
| 510 | |
| 767 | 511 // Read one character from the terminal. |
| 512 | |
| 529 | 513 int |
| 4067 | 514 octave_kbhit (bool wait) |
| 529 | 515 { |
| 4067 | 516 #ifdef HAVE__KBHIT |
| 4081 | 517 int c = (! wait && ! _kbhit ()) ? 0 : std::cin.get (); |
| 4067 | 518 #else |
| 3658 | 519 raw_mode (true, wait); |
| 520 | |
| 5770 | 521 // Get current handler. |
| 522 octave_interrupt_handler saved_interrupt_handler | |
| 523 = octave_ignore_interrupts (); | |
| 524 | |
| 525 // Restore it, disabling system call restarts (if possible) so the | |
| 526 // read can be interrupted. | |
| 527 | |
| 528 octave_set_interrupt_handler (saved_interrupt_handler, false); | |
| 529 | |
| 3658 | 530 int c = std::cin.get (); |
| 5770 | 531 |
| 3658 | 532 if (std::cin.fail () || std::cin.eof ()) |
| 533 std::cin.clear (); | |
| 534 | |
| 5770 | 535 // Restore it, enabling system call restarts (if possible). |
| 536 octave_set_interrupt_handler (saved_interrupt_handler, true); | |
| 537 | |
| 3658 | 538 raw_mode (false, true); |
| 4067 | 539 #endif |
| 3658 | 540 |
| 529 | 541 return c; |
| 542 } | |
| 543 | |
| 1957 | 544 DEFUN (clc, , , |
| 3332 | 545 "-*- texinfo -*-\n\ |
| 546 @deftypefn {Built-in Function} {} clc ()\n\ | |
| 547 @deftypefnx {Built-in Function} {} home ()\n\ | |
| 548 Clear the terminal screen and move the cursor to the upper left corner.\n\ | |
| 3333 | 549 @end deftypefn") |
| 529 | 550 { |
| 2926 | 551 command_editor::clear_screen (); |
| 529 | 552 |
| 2926 | 553 return octave_value_list (); |
| 529 | 554 } |
| 555 | |
| 549 | 556 DEFALIAS (home, clc); |
| 557 | |
| 1957 | 558 DEFUN (getenv, args, , |
| 3301 | 559 "-*- texinfo -*-\n\ |
| 560 @deftypefn {Built-in Function} {} getenv (@var{var})\n\ | |
| 561 Return the value of the environment variable @var{var}. For example,\n\ | |
| 562 \n\ | |
| 563 @example\n\ | |
| 564 getenv (\"PATH\")\n\ | |
| 565 @end example\n\ | |
| 566 \n\ | |
| 567 @noindent\n\ | |
| 568 returns a string containing the value of your path.\n\ | |
| 569 @end deftypefn") | |
| 529 | 570 { |
| 4233 | 571 octave_value retval; |
| 529 | 572 |
| 573 int nargin = args.length (); | |
| 574 | |
| 712 | 575 if (nargin == 1) |
| 529 | 576 { |
| 3523 | 577 std::string name = args(0).string_value (); |
| 636 | 578 |
| 579 if (! error_state) | |
| 2926 | 580 retval = octave_env::getenv (name); |
| 529 | 581 } |
| 582 else | |
| 5823 | 583 print_usage (); |
| 529 | 584 |
| 585 return retval; | |
| 586 } | |
| 587 | |
| 1957 | 588 DEFUN (putenv, args, , |
| 3301 | 589 "-*- texinfo -*-\n\ |
| 590 @deftypefn {Built-in Function} {} putenv (@var{var}, @var{value})\n\ | |
|
7759
84a7f00586aa
Alias setenv to putenv. Allow single arg to putenv
David Bateman <dbateman@free.fr>
parents:
7231
diff
changeset
|
591 @deftypefnx {Built-in Function} {} setenv (@var{var}, @var{value})\n\ |
| 3301 | 592 Set the value of the environment variable @var{var} to @var{value}.\n\ |
| 593 @end deftypefn") | |
| 1706 | 594 { |
| 2086 | 595 octave_value_list retval; |
| 1706 | 596 |
| 597 int nargin = args.length (); | |
| 598 | |
|
7759
84a7f00586aa
Alias setenv to putenv. Allow single arg to putenv
David Bateman <dbateman@free.fr>
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599 if (nargin == 2 || nargin == 1) |
| 1706 | 600 { |
| 3523 | 601 std::string var = args(0).string_value (); |
| 1706 | 602 |
| 603 if (! error_state) | |
| 604 { | |
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Alias setenv to putenv. Allow single arg to putenv
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605 std::string val = (nargin == 2 |
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Alias setenv to putenv. Allow single arg to putenv
David Bateman <dbateman@free.fr>
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changeset
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606 ? args(1).string_value () : std::string ()); |
| 1706 | 607 |
| 608 if (! error_state) | |
| 2926 | 609 octave_env::putenv (var, val); |
| 1706 | 610 else |
| 611 error ("putenv: second argument should be a string"); | |
| 612 } | |
| 613 else | |
| 614 error ("putenv: first argument should be a string"); | |
| 615 } | |
| 616 else | |
| 5823 | 617 print_usage (); |
| 1706 | 618 |
| 619 return retval; | |
| 620 } | |
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David Bateman <dbateman@free.fr>
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621 DEFALIAS (setenv, putenv); |
| 1706 | 622 |
| 5775 | 623 // FIXME -- perhaps kbhit should also be able to print a prompt? |
| 3372 | 624 |
| 3657 | 625 DEFUN (kbhit, args, , |
| 3372 | 626 "-*- texinfo -*-\n\ |
| 627 @deftypefn {Built-in Function} {} kbhit ()\n\ | |
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Cleanup documentation files errors.texi, debug.texi, io.texi
Rik <rdrider0-list@yahoo.com>
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628 Read a single keystroke from the keyboard. If called with one\n\ |
| 3657 | 629 argument, don't wait for a keypress. For example,\n\ |
| 3372 | 630 \n\ |
| 631 @example\n\ | |
| 632 x = kbhit ();\n\ | |
| 633 @end example\n\ | |
| 634 \n\ | |
| 635 @noindent\n\ | |
| 636 will set @var{x} to the next character typed at the keyboard as soon as\n\ | |
| 637 it is typed.\n\ | |
| 3657 | 638 \n\ |
| 639 @example\n\ | |
| 640 x = kbhit (1);\n\ | |
| 641 @end example\n\ | |
| 642 \n\ | |
| 643 @noindent\n\ | |
| 644 identical to the above example, but don't wait for a keypress,\n\ | |
| 645 returning the empty string if no key is available.\n\ | |
| 3372 | 646 @end deftypefn") |
| 529 | 647 { |
| 4233 | 648 octave_value retval; |
| 529 | 649 |
| 5775 | 650 // FIXME -- add timeout and default value args? |
| 529 | 651 |
| 3676 | 652 if (interactive || forced_interactive) |
| 529 | 653 { |
| 6423 | 654 feval ("drawnow"); |
| 655 | |
| 4067 | 656 int c = octave_kbhit (args.length () == 0); |
| 3657 | 657 |
| 3658 | 658 if (c == -1) |
| 659 c = 0; | |
| 3657 | 660 |
| 529 | 661 char *s = new char [2]; |
| 662 s[0] = c; | |
| 663 s[1] = '\0'; | |
| 664 retval = s; | |
| 665 } | |
| 666 | |
| 667 return retval; | |
| 668 } | |
| 669 | |
| 1957 | 670 DEFUN (pause, args, , |
| 3301 | 671 "-*- texinfo -*-\n\ |
| 672 @deftypefn {Built-in Function} {} pause (@var{seconds})\n\ | |
| 673 Suspend the execution of the program. If invoked without any arguments,\n\ | |
| 674 Octave waits until you type a character. With a numeric argument, it\n\ | |
| 675 pauses for the given number of seconds. For example, the following\n\ | |
| 676 statement prints a message and then waits 5 seconds before clearing the\n\ | |
| 677 screen.\n\ | |
| 678 \n\ | |
| 679 @example\n\ | |
| 680 @group\n\ | |
| 6848 | 681 fprintf (stderr, \"wait please...\\n\");\n\ |
| 3301 | 682 pause (5);\n\ |
| 683 clc;\n\ | |
| 684 @end group\n\ | |
| 685 @end example\n\ | |
| 686 @end deftypefn") | |
| 529 | 687 { |
| 2086 | 688 octave_value_list retval; |
| 529 | 689 |
| 690 int nargin = args.length (); | |
| 691 | |
| 712 | 692 if (! (nargin == 0 || nargin == 1)) |
| 529 | 693 { |
| 5823 | 694 print_usage (); |
| 529 | 695 return retval; |
| 696 } | |
| 697 | |
| 1579 | 698 if (nargin == 1) |
| 529 | 699 { |
| 1579 | 700 double dval = args(0).double_value (); |
| 636 | 701 |
| 1579 | 702 if (! error_state) |
| 703 { | |
| 6419 | 704 if (! xisnan (dval)) |
| 3234 | 705 { |
| 6419 | 706 feval ("drawnow"); |
| 707 | |
| 708 if (xisinf (dval)) | |
| 709 { | |
| 710 flush_octave_stdout (); | |
| 711 octave_kbhit (); | |
| 712 } | |
| 713 else | |
| 714 octave_sleep (dval); | |
| 3234 | 715 } |
| 1579 | 716 else |
| 6419 | 717 warning ("pause: NaN is an invalid delay"); |
| 529 | 718 } |
| 719 } | |
| 1579 | 720 else |
| 3234 | 721 { |
| 6423 | 722 feval ("drawnow"); |
| 3234 | 723 flush_octave_stdout (); |
| 4067 | 724 octave_kbhit (); |
| 3234 | 725 } |
| 2630 | 726 |
| 727 return retval; | |
| 728 } | |
| 729 | |
| 730 DEFUN (sleep, args, , | |
| 3301 | 731 "-*- texinfo -*-\n\ |
| 732 @deftypefn {Built-in Function} {} sleep (@var{seconds})\n\ | |
| 733 Suspend the execution of the program for the given number of seconds.\n\ | |
| 734 @end deftypefn") | |
| 2630 | 735 { |
| 736 octave_value_list retval; | |
| 737 | |
| 738 if (args.length () == 1) | |
| 1579 | 739 { |
| 2630 | 740 double dval = args(0).double_value (); |
| 741 | |
| 742 if (! error_state) | |
| 743 { | |
| 744 if (xisnan (dval)) | |
| 745 warning ("sleep: NaN is an invalid delay"); | |
| 746 else | |
| 6423 | 747 { |
| 748 feval ("drawnow"); | |
| 749 octave_sleep (dval); | |
| 750 } | |
| 2630 | 751 } |
| 1579 | 752 } |
| 2630 | 753 else |
| 5823 | 754 print_usage (); |
| 2630 | 755 |
| 756 return retval; | |
| 757 } | |
| 758 | |
| 759 DEFUN (usleep, args, , | |
| 3301 | 760 "-*- texinfo -*-\n\ |
| 761 @deftypefn {Built-in Function} {} usleep (@var{microseconds})\n\ | |
| 762 Suspend the execution of the program for the given number of\n\ | |
| 763 microseconds. On systems where it is not possible to sleep for periods\n\ | |
| 764 of time less than one second, @code{usleep} will pause the execution for\n\ | |
| 765 @code{round (@var{microseconds} / 1e6)} seconds.\n\ | |
| 766 @end deftypefn") | |
| 2630 | 767 { |
| 768 octave_value_list retval; | |
| 769 | |
| 770 if (args.length () == 1) | |
| 771 { | |
| 772 double dval = args(0).double_value (); | |
| 773 | |
| 774 if (! error_state) | |
| 775 { | |
| 776 if (xisnan (dval)) | |
| 777 warning ("usleep: NaN is an invalid delay"); | |
| 778 else | |
| 779 { | |
| 6423 | 780 feval ("drawnow"); |
| 781 | |
| 2630 | 782 int delay = NINT (dval); |
| 2631 | 783 |
| 2630 | 784 if (delay > 0) |
| 3308 | 785 octave_usleep (delay); |
| 2630 | 786 } |
| 787 } | |
| 788 } | |
| 789 else | |
| 5823 | 790 print_usage (); |
| 529 | 791 |
| 792 return retval; | |
| 793 } | |
| 794 | |
| 5775 | 795 // FIXME -- maybe this should only return 1 if IEEE floating |
| 862 | 796 // point functions really work. |
| 797 | |
| 1957 | 798 DEFUN (isieee, , , |
| 3301 | 799 "-*- texinfo -*-\n\ |
| 800 @deftypefn {Built-in Function} {} isieee ()\n\ | |
| 801 Return 1 if your computer claims to conform to the IEEE standard for\n\ | |
| 802 floating point calculations.\n\ | |
| 803 @end deftypefn") | |
| 862 | 804 { |
| 4600 | 805 oct_mach_info::float_format flt_fmt = oct_mach_info::native_float_format (); |
| 2317 | 806 |
| 4574 | 807 return octave_value (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian |
| 808 || flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); | |
| 862 | 809 } |
| 810 | |
| 4600 | 811 DEFUN (native_float_format, , , |
| 812 "-*- texinfo -*-\n\ | |
| 813 @deftypefn {Built-in Function} {} native_float_format ()\n\ | |
| 814 Return the native floating point format as a string\n\ | |
| 815 @end deftypefn") | |
| 816 { | |
| 817 oct_mach_info::float_format flt_fmt = oct_mach_info::native_float_format (); | |
| 818 | |
| 819 return octave_value (oct_mach_info::float_format_as_string (flt_fmt)); | |
| 820 } | |
| 821 | |
| 1957 | 822 DEFUN (tilde_expand, args, , |
| 3301 | 823 "-*- texinfo -*-\n\ |
| 824 @deftypefn {Built-in Function} {} tilde_expand (@var{string})\n\ | |
| 825 Performs tilde expansion on @var{string}. If @var{string} begins with a\n\ | |
| 826 tilde character, (@samp{~}), all of the characters preceding the first\n\ | |
| 827 slash (or all characters, if there is no slash) are treated as a\n\ | |
| 828 possible user name, and the tilde and the following characters up to the\n\ | |
| 829 slash are replaced by the home directory of the named user. If the\n\ | |
| 830 tilde is followed immediately by a slash, the tilde is replaced by the\n\ | |
| 831 home directory of the user running Octave. For example,\n\ | |
| 832 \n\ | |
| 833 @example\n\ | |
| 834 @group\n\ | |
| 835 tilde_expand (\"~joeuser/bin\")\n\ | |
| 836 @result{} \"/home/joeuser/bin\"\n\ | |
| 837 tilde_expand (\"~/bin\")\n\ | |
| 838 @result{} \"/home/jwe/bin\"\n\ | |
| 839 @end group\n\ | |
| 840 @end example\n\ | |
| 841 @end deftypefn") | |
| 1750 | 842 { |
| 4233 | 843 octave_value retval; |
| 1750 | 844 |
| 845 int nargin = args.length (); | |
| 846 | |
| 847 if (nargin == 1) | |
| 6116 | 848 { |
| 849 octave_value arg = args(0); | |
| 850 | |
| 851 string_vector sv = arg.all_strings (); | |
| 852 | |
| 853 if (! error_state) | |
| 854 { | |
| 855 sv = file_ops::tilde_expand (sv); | |
| 856 | |
| 857 if (arg.is_cellstr ()) | |
| 858 retval = Cell (arg.dims (), sv); | |
| 859 else | |
| 860 retval = sv; | |
| 861 } | |
| 862 else | |
| 863 error ("tilde_expand: expecting argument to be char or cellstr object"); | |
| 864 } | |
| 1750 | 865 else |
| 5823 | 866 print_usage (); |
| 1750 | 867 |
| 868 return retval; | |
| 869 } | |
| 870 | |
| 2552 | 871 #if defined (__EMX__) && defined (OS2) |
| 872 | |
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John W. Eaton <jwe@octave.org>
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873 DEFUN (extproc, , , |
| 2926 | 874 "extproc: ignored by Octave") |
| 2552 | 875 { |
| 876 return octave_value_list (); | |
| 877 } | |
| 878 | |
| 879 DEFALIAS (EXTPROC, extproc); | |
| 880 | |
| 881 #endif | |
| 882 | |
| 529 | 883 /* |
| 1 | 884 ;;; Local Variables: *** |
| 885 ;;; mode: C++ *** | |
| 886 ;;; End: *** | |
| 887 */ |