Mercurial > octave-nkf
annotate src/load-save.cc @ 8418:679c22082ac7
handle -double option for save
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 24 Dec 2008 13:06:26 -0500 |
| parents | 25bc2d31e1bf |
| children | 2e777f5135a3 |
| rev | line source |
|---|---|
| 6763 | 1 /* |
| 604 | 2 |
| 7017 | 3 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
| 4 2003, 2004, 2005, 2006, 2007 John W. Eaton | |
| 604 | 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. | |
| 604 | 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/>. | |
| 604 | 21 |
| 22 */ | |
| 23 | |
| 3911 | 24 // Author: John W. Eaton. |
| 25 // HDF5 support by Steven G. Johnson <stevenj@alum.mit.edu> | |
| 26 // Matlab v5 support by James R. Van Zandt <jrv@vanzandt.mv.com> | |
| 3687 | 27 |
| 604 | 28 #ifdef HAVE_CONFIG_H |
| 1192 | 29 #include <config.h> |
| 604 | 30 #endif |
| 31 | |
| 1343 | 32 #include <cfloat> |
| 33 #include <cstring> | |
| 34 #include <cctype> | |
| 35 | |
| 4249 | 36 #include <fstream> |
| 3503 | 37 #include <iomanip> |
| 38 #include <iostream> | |
| 5765 | 39 #include <sstream> |
| 1728 | 40 #include <string> |
| 41 | |
| 3687 | 42 #ifdef HAVE_HDF5 |
| 43 #include <hdf5.h> | |
| 44 #endif | |
| 45 | |
| 1961 | 46 #include "byte-swap.h" |
| 47 #include "data-conv.h" | |
| 2926 | 48 #include "file-ops.h" |
| 6159 | 49 #include "file-stat.h" |
| 2926 | 50 #include "glob-match.h" |
| 2890 | 51 #include "lo-mappers.h" |
| 2318 | 52 #include "mach-info.h" |
| 3185 | 53 #include "oct-env.h" |
| 3258 | 54 #include "oct-time.h" |
| 4171 | 55 #include "quit.h" |
| 1755 | 56 #include "str-vec.h" |
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57 #include "oct-locbuf.h" |
| 1755 | 58 |
| 4332 | 59 #include "Cell.h" |
| 1352 | 60 #include "defun.h" |
| 604 | 61 #include "error.h" |
| 777 | 62 #include "gripes.h" |
| 6159 | 63 #include "load-path.h" |
| 1352 | 64 #include "load-save.h" |
| 1750 | 65 #include "oct-obj.h" |
| 3687 | 66 #include "oct-map.h" |
| 4332 | 67 #include "ov-cell.h" |
| 1352 | 68 #include "pager.h" |
| 1750 | 69 #include "pt-exp.h" |
| 1352 | 70 #include "symtab.h" |
| 71 #include "sysdep.h" | |
| 72 #include "unwind-prot.h" | |
| 604 | 73 #include "utils.h" |
| 2371 | 74 #include "variables.h" |
| 3185 | 75 #include "version.h" |
| 3688 | 76 #include "dMatrix.h" |
| 77 | |
| 4659 | 78 #ifdef HAVE_HDF5 |
| 4633 | 79 #include "ls-hdf5.h" |
| 4659 | 80 #endif |
| 4633 | 81 #include "ls-mat-ascii.h" |
| 82 #include "ls-mat4.h" | |
| 83 #include "ls-mat5.h" | |
| 84 #include "ls-oct-ascii.h" | |
| 85 #include "ls-oct-binary.h" | |
| 3688 | 86 |
| 5269 | 87 #ifdef HAVE_ZLIB |
| 88 #include "zfstream.h" | |
| 89 #endif | |
| 90 | |
| 3598 | 91 // Write octave-core file if Octave crashes or is killed by a signal. |
| 5794 | 92 static bool Vcrash_dumps_octave_core = true; |
| 3189 | 93 |
| 4791 | 94 // The maximum amount of memory (in kilobytes) that we will attempt to |
| 95 // write to the Octave core file. | |
| 5794 | 96 static double Voctave_core_file_limit = -1.0; |
| 4791 | 97 |
| 98 // The name of the Octave core file. | |
| 5794 | 99 static std::string Voctave_core_file_name = "octave-core"; |
| 4791 | 100 |
| 3687 | 101 // The default output format. May be one of "binary", "text", |
| 102 // "mat-binary", or "hdf5". | |
| 5794 | 103 static std::string Vdefault_save_options = "-text"; |
| 2194 | 104 |
| 5284 | 105 // The output format for Octave core files. |
| 5794 | 106 static std::string Voctave_core_file_options = "-binary"; |
| 107 | |
| 108 static std::string | |
| 109 default_save_header_format (void) | |
| 110 { | |
| 111 return | |
| 112 std::string ("# Created by Octave " OCTAVE_VERSION | |
| 113 ", %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 } | |
| 4788 | 119 |
| 3709 | 120 // The format string for the comment line at the top of text-format |
| 121 // save files. Passed to strftime. Should begin with `#' and contain | |
| 122 // no newline characters. | |
| 5794 | 123 static std::string Vsave_header_format_string = default_save_header_format (); |
| 3709 | 124 |
| 5369 | 125 static void |
| 126 gripe_file_open (const std::string& fcn, const std::string& file) | |
| 127 { | |
| 128 if (fcn == "load") | |
| 129 error ("%s: unable to open input file `%s'", fcn.c_str (), file.c_str ()); | |
| 130 else if (fcn == "save") | |
| 131 error ("%s: unable to open output file `%s'", fcn.c_str (), file.c_str ()); | |
| 132 else | |
| 133 error ("%s: unable to open file `%s'", fcn.c_str (), file.c_str ()); | |
| 134 } | |
| 135 | |
| 7336 | 136 // Install a variable with name NAME and the value VAL in the |
| 137 // symbol table. If GLOBAL is TRUE, make the variable global. | |
| 604 | 138 |
| 139 static void | |
| 7336 | 140 install_loaded_variable (const std::string& name, |
| 4171 | 141 const octave_value& val, |
| 7336 | 142 bool global, const std::string& /*doc*/) |
| 604 | 143 { |
| 144 if (global) | |
| 145 { | |
| 7336 | 146 symbol_table::clear (name); |
| 147 symbol_table::mark_global (name); | |
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148 symbol_table::global_varref (name) = val; |
| 604 | 149 } |
| 150 else | |
| 7336 | 151 symbol_table::varref (name) = val; |
| 604 | 152 } |
| 153 | |
| 3019 | 154 // Return TRUE if NAME matches one of the given globbing PATTERNS. |
| 604 | 155 |
| 3013 | 156 static bool |
| 3769 | 157 matches_patterns (const string_vector& patterns, int pat_idx, |
| 3523 | 158 int num_pat, const std::string& name) |
| 604 | 159 { |
| 1755 | 160 for (int i = pat_idx; i < num_pat; i++) |
| 604 | 161 { |
| 1792 | 162 glob_match pattern (patterns[i]); |
| 3013 | 163 |
| 1792 | 164 if (pattern.match (name)) |
| 3013 | 165 return true; |
| 604 | 166 } |
| 3688 | 167 |
| 3013 | 168 return false; |
| 604 | 169 } |
| 170 | |
| 4329 | 171 int |
| 3523 | 172 read_binary_file_header (std::istream& is, bool& swap, |
| 4329 | 173 oct_mach_info::float_format& flt_fmt, bool quiet) |
| 604 | 174 { |
| 3552 | 175 const int magic_len = 10; |
| 176 char magic[magic_len+1]; | |
| 5760 | 177 is.read (magic, magic_len); |
| 604 | 178 magic[magic_len] = '\0'; |
| 3688 | 179 |
| 604 | 180 if (strncmp (magic, "Octave-1-L", magic_len) == 0) |
| 2318 | 181 swap = oct_mach_info::words_big_endian (); |
| 604 | 182 else if (strncmp (magic, "Octave-1-B", magic_len) == 0) |
| 2318 | 183 swap = ! oct_mach_info::words_big_endian (); |
| 604 | 184 else |
| 185 { | |
| 186 if (! quiet) | |
| 5369 | 187 error ("load: unable to read read binary file"); |
| 604 | 188 return -1; |
| 189 } | |
| 190 | |
| 191 char tmp = 0; | |
| 5760 | 192 is.read (&tmp, 1); |
| 604 | 193 |
| 2318 | 194 flt_fmt = mopt_digit_to_float_format (tmp); |
| 195 | |
| 4574 | 196 if (flt_fmt == oct_mach_info::flt_fmt_unknown) |
| 604 | 197 { |
| 198 if (! quiet) | |
| 199 error ("load: unrecognized binary format!"); | |
| 3688 | 200 |
| 604 | 201 return -1; |
| 202 } | |
| 203 | |
| 204 return 0; | |
| 205 } | |
| 206 | |
| 5269 | 207 #ifdef HAVE_ZLIB |
| 208 static bool | |
| 209 check_gzip_magic (const std::string& fname) | |
| 210 { | |
| 211 bool retval = false; | |
| 212 std::ifstream file (fname.c_str ()); | |
| 213 OCTAVE_LOCAL_BUFFER (unsigned char, magic, 2); | |
| 214 | |
| 5760 | 215 if (file.read (reinterpret_cast<char *> (magic), 2) && magic[0] == 0x1f && |
| 5269 | 216 magic[1] == 0x8b) |
| 217 retval = true; | |
| 218 | |
| 219 file.close (); | |
| 220 return retval; | |
| 221 } | |
| 222 #endif | |
| 223 | |
| 604 | 224 static load_save_format |
| 6625 | 225 get_file_format (std::istream& file, const std::string& filename) |
| 604 | 226 { |
| 227 load_save_format retval = LS_UNKNOWN; | |
| 228 | |
| 4574 | 229 oct_mach_info::float_format flt_fmt = oct_mach_info::flt_fmt_unknown; |
| 604 | 230 |
| 3019 | 231 bool swap = false; |
| 232 | |
| 233 if (read_binary_file_header (file, swap, flt_fmt, true) == 0) | |
| 604 | 234 retval = LS_BINARY; |
| 235 else | |
| 236 { | |
| 6202 | 237 file.clear (); |
| 3538 | 238 file.seekg (0, std::ios::beg); |
| 604 | 239 |
| 5828 | 240 int32_t mopt, nr, nc, imag, len; |
| 1180 | 241 |
| 242 int err = read_mat_file_header (file, swap, mopt, nr, nc, imag, len, 1); | |
| 243 | |
| 244 if (! err) | |
| 604 | 245 retval = LS_MAT_BINARY; |
| 246 else | |
| 247 { | |
| 2511 | 248 file.clear (); |
| 3538 | 249 file.seekg (0, std::ios::beg); |
| 604 | 250 |
| 6625 | 251 err = read_mat5_binary_file_header (file, swap, true, filename); |
| 3688 | 252 |
| 253 if (! err) | |
| 254 { | |
| 255 file.clear (); | |
| 256 file.seekg (0, std::ios::beg); | |
| 257 retval = LS_MAT5_BINARY; | |
| 258 } | |
| 259 else | |
| 260 { | |
| 261 file.clear (); | |
| 262 file.seekg (0, std::ios::beg); | |
| 263 | |
| 4171 | 264 std::string tmp = extract_keyword (file, "name"); |
| 265 | |
| 266 if (! tmp.empty ()) | |
| 267 retval = LS_ASCII; | |
| 2511 | 268 } |
| 604 | 269 } |
| 270 } | |
| 271 | |
| 5269 | 272 return retval; |
| 273 } | |
| 5977 | 274 |
| 5269 | 275 static load_save_format |
| 276 get_file_format (const std::string& fname, const std::string& orig_fname, | |
| 277 bool &use_zlib) | |
| 278 { | |
| 279 load_save_format retval = LS_UNKNOWN; | |
| 280 | |
| 281 #ifdef HAVE_HDF5 | |
| 282 // check this before we open the file | |
| 283 if (H5Fis_hdf5 (fname.c_str ()) > 0) | |
| 284 return LS_HDF5; | |
| 285 #endif /* HAVE_HDF5 */ | |
| 604 | 286 |
| 5269 | 287 std::ifstream file (fname.c_str ()); |
| 288 use_zlib = false; | |
| 289 | |
| 290 if (file) | |
| 291 { | |
| 6625 | 292 retval = get_file_format (file, orig_fname); |
| 5269 | 293 file.close (); |
| 5977 | 294 |
| 5383 | 295 #ifdef HAVE_ZLIB |
| 5269 | 296 if (retval == LS_UNKNOWN && check_gzip_magic (fname)) |
| 297 { | |
| 298 gzifstream gzfile (fname.c_str ()); | |
| 299 use_zlib = true; | |
| 300 | |
| 301 if (gzfile) | |
| 302 { | |
| 6625 | 303 retval = get_file_format (gzfile, orig_fname); |
| 5269 | 304 gzfile.close (); |
| 305 } | |
| 306 } | |
| 5977 | 307 #endif |
| 5269 | 308 |
| 309 if (retval == LS_UNKNOWN) | |
| 310 { | |
| 311 // Try reading the file as numbers only, determining the | |
| 312 // number of rows and columns from the data. We don't | |
| 313 // even bother to check to see if the first item in the | |
| 314 // file is a number, so that get_complete_line() can | |
| 315 // skip any comments that might appear at the top of the | |
| 316 // file. | |
| 317 | |
| 318 retval = LS_MAT_ASCII; | |
| 319 } | |
| 320 } | |
| 321 else | |
| 5369 | 322 gripe_file_open ("load", orig_fname); |
| 604 | 323 |
| 324 return retval; | |
| 325 } | |
| 326 | |
| 4329 | 327 octave_value |
| 7336 | 328 do_load (std::istream& stream, const std::string& orig_fname, |
| 2318 | 329 load_save_format format, oct_mach_info::float_format flt_fmt, |
| 4687 | 330 bool list_only, bool swap, bool verbose, |
| 3687 | 331 const string_vector& argv, int argv_idx, int argc, int nargout) |
| 604 | 332 { |
| 3727 | 333 octave_value retval; |
| 334 | |
| 335 Octave_map retstruct; | |
| 604 | 336 |
| 5765 | 337 std::ostringstream output_buf; |
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338 std::list<std::string> symbol_names; |
| 4051 | 339 |
| 5754 | 340 octave_idx_type count = 0; |
| 4051 | 341 |
| 604 | 342 for (;;) |
| 343 { | |
| 3019 | 344 bool global = false; |
| 2086 | 345 octave_value tc; |
| 604 | 346 |
| 4171 | 347 std::string name; |
| 348 std::string doc; | |
| 604 | 349 |
| 350 switch (format) | |
| 351 { | |
| 352 case LS_ASCII: | |
| 3136 | 353 name = read_ascii_data (stream, orig_fname, global, tc, count); |
| 604 | 354 break; |
| 355 | |
| 356 case LS_BINARY: | |
| 357 name = read_binary_data (stream, swap, flt_fmt, orig_fname, | |
| 358 global, tc, doc); | |
| 359 break; | |
| 360 | |
| 2511 | 361 case LS_MAT_ASCII: |
| 362 name = read_mat_ascii_data (stream, orig_fname, tc); | |
| 363 break; | |
| 364 | |
| 604 | 365 case LS_MAT_BINARY: |
| 366 name = read_mat_binary_data (stream, orig_fname, tc); | |
| 367 break; | |
| 368 | |
| 3687 | 369 #ifdef HAVE_HDF5 |
| 370 case LS_HDF5: | |
| 4687 | 371 name = read_hdf5_data (stream, orig_fname, global, tc, doc); |
| 3687 | 372 break; |
| 373 #endif /* HAVE_HDF5 */ | |
| 374 | |
| 3688 | 375 case LS_MAT5_BINARY: |
| 5269 | 376 case LS_MAT7_BINARY: |
| 3688 | 377 name = read_mat5_binary_element (stream, orig_fname, swap, |
| 378 global, tc); | |
| 379 break; | |
| 380 | |
| 604 | 381 default: |
| 775 | 382 gripe_unrecognized_data_fmt ("load"); |
| 604 | 383 break; |
| 384 } | |
| 385 | |
| 4171 | 386 if (error_state || stream.eof () || name.empty ()) |
| 387 break; | |
| 388 else if (! error_state && ! name.empty ()) | |
| 604 | 389 { |
| 390 if (tc.is_defined ()) | |
| 391 { | |
| 3136 | 392 if (format == LS_MAT_ASCII && argv_idx < argc) |
| 393 warning ("load: loaded ASCII file `%s' -- ignoring extra args", | |
| 3687 | 394 orig_fname.c_str ()); |
| 3136 | 395 |
| 396 if (format == LS_MAT_ASCII | |
| 397 || argv_idx == argc | |
| 1755 | 398 || matches_patterns (argv, argv_idx, argc, name)) |
| 604 | 399 { |
| 400 count++; | |
| 621 | 401 if (list_only) |
| 402 { | |
| 403 if (verbose) | |
| 404 { | |
| 405 if (count == 1) | |
| 406 output_buf | |
| 407 << "type rows cols name\n" | |
| 408 << "==== ==== ==== ====\n"; | |
| 409 | |
| 3013 | 410 output_buf |
| 3548 | 411 << std::setiosflags (std::ios::left) |
| 412 << std::setw (16) << tc.type_name () . c_str () | |
| 413 << std::setiosflags (std::ios::right) | |
| 414 << std::setw (7) << tc.rows () | |
| 415 << std::setw (7) << tc.columns () | |
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416 << " " << name << "\n"; |
| 621 | 417 } |
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418 else |
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419 symbol_names.push_back (name); |
| 621 | 420 } |
| 421 else | |
| 422 { | |
| 3727 | 423 if (nargout == 1) |
| 424 { | |
| 425 if (format == LS_MAT_ASCII) | |
| 426 retval = tc; | |
| 427 else | |
| 4675 | 428 retstruct.assign (name, tc); |
| 3727 | 429 } |
| 430 else | |
| 7336 | 431 install_loaded_variable (name, tc, global, doc); |
| 621 | 432 } |
| 604 | 433 } |
| 2511 | 434 |
| 435 // Only attempt to read one item from a headless text file. | |
| 436 | |
| 437 if (format == LS_MAT_ASCII) | |
| 438 break; | |
| 604 | 439 } |
| 440 else | |
| 4171 | 441 error ("load: unable to load variable `%s'", name.c_str ()); |
| 604 | 442 } |
| 443 else | |
| 444 { | |
| 445 if (count == 0) | |
| 446 error ("load: are you sure `%s' is an Octave data file?", | |
| 1755 | 447 orig_fname.c_str ()); |
| 604 | 448 |
| 449 break; | |
| 450 } | |
| 451 } | |
| 452 | |
| 621 | 453 if (list_only && count) |
| 454 { | |
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455 if (verbose) |
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456 { |
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457 std::string msg = output_buf.str (); |
| 2095 | 458 |
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459 if (nargout > 0) |
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460 retval = msg; |
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461 else |
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462 octave_stdout << msg; |
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463 } |
| 621 | 464 else |
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465 { |
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466 if (nargout > 0) |
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467 retval = Cell (string_vector (symbol_names)); |
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468 else |
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469 { |
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470 string_vector names (symbol_names); |
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471 |
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472 names.list_in_columns (octave_stdout); |
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473 |
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474 octave_stdout << "\n"; |
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475 } |
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476 } |
| 621 | 477 } |
| 6639 | 478 else if (retstruct.nfields () != 0) |
| 3727 | 479 retval = retstruct; |
| 621 | 480 |
| 863 | 481 return retval; |
| 482 } | |
| 483 | |
| 6159 | 484 std::string |
| 485 find_file_to_load (const std::string& name, const std::string& orig_name) | |
| 486 { | |
| 487 std::string fname = name; | |
| 488 | |
| 6838 | 489 if (! (octave_env::absolute_pathname (fname) |
| 490 || octave_env::rooted_relative_pathname (fname))) | |
| 6159 | 491 { |
| 492 file_stat fs (fname); | |
| 493 | |
| 6584 | 494 if (! (fs.exists () && fs.is_reg ())) |
| 6159 | 495 { |
| 496 std::string tmp = octave_env::make_absolute | |
| 497 (load_path::find_file (fname), octave_env::getcwd ()); | |
| 498 | |
| 499 if (! tmp.empty ()) | |
| 500 { | |
| 501 warning_with_id ("Octave:load-file-in-path", | |
| 502 "load: file found in load path"); | |
| 503 fname = tmp; | |
| 504 } | |
| 505 } | |
| 506 } | |
| 507 | |
| 6838 | 508 size_t dot_pos = fname.rfind ("."); |
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509 size_t sep_pos = fname.find_last_of (file_ops::dir_sep_chars ()); |
| 6838 | 510 |
| 8021 | 511 if (dot_pos == std::string::npos |
| 512 || (sep_pos != std::string::npos && dot_pos < sep_pos)) | |
| 6159 | 513 { |
| 6838 | 514 // Either no '.' in name or no '.' appears after last directory |
| 515 // separator. | |
| 516 | |
| 6159 | 517 file_stat fs (fname); |
| 518 | |
| 6584 | 519 if (! (fs.exists () && fs.is_reg ())) |
| 6159 | 520 fname = find_file_to_load (fname + ".mat", orig_name); |
| 521 } | |
| 522 else | |
| 523 { | |
| 524 file_stat fs (fname); | |
| 525 | |
| 6584 | 526 if (! (fs.exists () && fs.is_reg ())) |
| 6159 | 527 { |
| 528 fname = ""; | |
| 529 | |
| 530 error ("load: unable to find file %s", orig_name.c_str ()); | |
| 531 } | |
| 532 } | |
| 533 | |
| 534 return fname; | |
| 535 } | |
| 536 | |
| 537 | |
| 3687 | 538 // HDF5 load/save documentation is included in the Octave manual |
| 539 // regardless, but if HDF5 is not linked in we also include a | |
| 540 // sentence noting this, so the user understands that the features | |
| 541 // aren't available. Define a macro for this sentence: | |
| 542 | |
| 543 #ifdef HAVE_HDF5 | |
| 544 #define HAVE_HDF5_HELP_STRING "" | |
| 545 #else /* ! HAVE_HDF5 */ | |
| 546 #define HAVE_HDF5_HELP_STRING "\n\ | |
| 547 HDF5 load and save are not available, as this Octave executable was\n\ | |
| 548 not linked with the HDF5 library." | |
| 549 #endif /* ! HAVE HDF5 */ | |
| 550 | |
| 4208 | 551 DEFCMD (load, args, nargout, |
| 3372 | 552 "-*- texinfo -*-\n\ |
| 553 @deffn {Command} load options file v1 v2 @dots{}\n\ | |
| 7247 | 554 Load the named variables @var{v1}, @var{v2}, @dots{}, from the file\n\ |
| 555 @var{file}. As with @code{save}, you may specify a list of variables\n\ | |
| 7251 | 556 and @code{load} will only extract those variables with names that\n\ |
| 7247 | 557 match. For example, to restore the variables saved in the file\n\ |
| 558 @file{data}, use the command\n\ | |
| 3372 | 559 \n\ |
| 560 @example\n\ | |
| 561 load data\n\ | |
| 562 @end example\n\ | |
| 863 | 563 \n\ |
| 5665 | 564 If load is invoked using the functional form\n\ |
| 565 \n\ | |
| 566 @example\n\ | |
| 7247 | 567 load (\"-option1\", @dots{}, \"file\", \"v1\", @dots{})\n\ |
| 5665 | 568 @end example\n\ |
| 569 \n\ | |
| 570 @noindent\n\ | |
| 571 then the @var{options}, @var{file}, and variable name arguments\n\ | |
| 572 (@var{v1}, @dots{}) must be specified as character strings.\n\ | |
| 573 \n\ | |
| 3372 | 574 If a variable that is not marked as global is loaded from a file when a\n\ |
| 575 global symbol with the same name already exists, it is loaded in the\n\ | |
| 576 global symbol table. Also, if a variable is marked as global in a file\n\ | |
| 577 and a local symbol exists, the local symbol is moved to the global\n\ | |
| 578 symbol table and given the value from the file. Since it seems that\n\ | |
| 579 both of these cases are likely to be the result of some sort of error,\n\ | |
| 580 they will generate warnings.\n\ | |
| 863 | 581 \n\ |
| 3727 | 582 If invoked with a single output argument, Octave returns data instead\n\ |
| 583 of inserting variables in the symbol table. If the data file contains\n\ | |
| 584 only numbers (TAB- or space-delimited columns), a matrix of values is\n\ | |
| 585 returned. Otherwise, @code{load} returns a structure with members\n\ | |
| 586 corresponding to the names of the variables in the file.\n\ | |
| 587 \n\ | |
| 3372 | 588 The @code{load} command can read data stored in Octave's text and\n\ |
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589 binary formats, and @sc{Matlab}'s binary format. If compiled with zlib\n\ |
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590 support, it can load gzip-compressed files as well. It will automatically\n\ |
| 3372 | 591 detect the type of file and do conversion from different floating point\n\ |
| 592 formats (currently only IEEE big and little endian, though other formats\n\ | |
| 593 may added in the future).\n\ | |
| 594 \n\ | |
| 595 Valid options for @code{load} are listed in the following table.\n\ | |
| 863 | 596 \n\ |
| 3372 | 597 @table @code\n\ |
| 598 @item -force\n\ | |
| 4884 | 599 The @samp{-force} option is accepted but ignored for backward\n\ |
| 6159 | 600 compatibility. Octave now overwrites variables currently in memory with\n\ |
| 4884 | 601 the same name as those found in the file.\n\ |
| 3372 | 602 \n\ |
| 603 @item -ascii\n\ | |
| 5938 | 604 Force Octave to assume the file contains columns of numbers in text format\n\ |
| 605 without any header or other information. Data in the file will be loaded\n\ | |
| 606 as a single numeric matrix with the name of the variable derived from the\n\ | |
| 607 name of the file.\n\ | |
| 5197 | 608 \n\ |
| 3372 | 609 @item -binary\n\ |
| 610 Force Octave to assume the file is in Octave's binary format.\n\ | |
| 611 \n\ | |
| 4884 | 612 @item -mat\n\ |
| 613 @itemx -mat-binary\n\ | |
| 5269 | 614 @itemx -6\n\ |
| 615 @itemx -v6\n\ | |
| 616 @itemx -7\n\ | |
| 617 @itemx -v7\n\ | |
| 618 Force Octave to assume the file is in @sc{Matlab}'s version 6 or 7 binary\n\ | |
| 5256 | 619 format.\n\ |
| 3687 | 620 \n\ |
| 5256 | 621 @item -V4\n\ |
| 622 @itemx -v4\n\ | |
| 623 @itemx -4\n\ | |
| 624 @itemx -mat4-binary\n\ | |
| 3688 | 625 Force Octave to assume the file is in the binary format written by\n\ |
| 626 @sc{Matlab} version 4.\n\ | |
| 627 \n\ | |
| 3687 | 628 @item -hdf5\n\ |
| 629 Force Octave to assume the file is in HDF5 format.\n\ | |
| 630 (HDF5 is a free, portable binary format developed by the National\n\ | |
| 631 Center for Supercomputing Applications at the University of Illinois.)\n\ | |
| 632 Note that Octave can read HDF5 files not created by itself, but may\n\ | |
| 4687 | 633 skip some datasets in formats that it cannot support.\n" |
| 3687 | 634 |
| 635 HAVE_HDF5_HELP_STRING | |
| 636 | |
| 637 "\n\ | |
| 638 @item -import\n\ | |
| 6159 | 639 The @samp{-import} is accepted but ignored for backward compatibility.\n\ |
| 4884 | 640 Octave can now support multi-dimensional HDF data and automatically\n\ |
| 641 modifies variable names if they are invalid Octave identifiers.\n\ | |
| 3687 | 642 \n\ |
| 5198 | 643 @item -text\n\ |
| 5197 | 644 Force Octave to assume the file is in Octave's text format.\n\ |
| 3372 | 645 @end table\n\ |
| 646 @end deffn") | |
| 863 | 647 { |
| 2086 | 648 octave_value_list retval; |
| 863 | 649 |
| 1755 | 650 int argc = args.length () + 1; |
| 651 | |
| 1968 | 652 string_vector argv = args.make_argv ("load"); |
| 1755 | 653 |
| 654 if (error_state) | |
| 655 return retval; | |
| 863 | 656 |
| 1358 | 657 // It isn't necessary to have the default load format stored in a |
| 658 // user preference variable since we can determine the type of file | |
| 659 // as we are reading. | |
| 863 | 660 |
| 661 load_save_format format = LS_UNKNOWN; | |
| 662 | |
| 3019 | 663 bool list_only = false; |
| 664 bool verbose = false; | |
| 863 | 665 |
| 1755 | 666 int i; |
| 667 for (i = 1; i < argc; i++) | |
| 863 | 668 { |
| 1755 | 669 if (argv[i] == "-force" || argv[i] == "-f") |
| 863 | 670 { |
| 4884 | 671 // Silently ignore this |
| 672 // warning ("load: -force ignored"); | |
| 863 | 673 } |
| 1755 | 674 else if (argv[i] == "-list" || argv[i] == "-l") |
| 863 | 675 { |
| 3019 | 676 list_only = true; |
| 863 | 677 } |
| 1755 | 678 else if (argv[i] == "-verbose" || argv[i] == "-v") |
| 863 | 679 { |
| 3019 | 680 verbose = true; |
| 863 | 681 } |
| 1755 | 682 else if (argv[i] == "-ascii" || argv[i] == "-a") |
| 863 | 683 { |
| 5938 | 684 format = LS_MAT_ASCII; |
| 863 | 685 } |
| 1755 | 686 else if (argv[i] == "-binary" || argv[i] == "-b") |
| 863 | 687 { |
| 688 format = LS_BINARY; | |
| 689 } | |
| 5269 | 690 else if (argv[i] == "-mat-binary" || argv[i] == "-mat" || argv[i] == "-m" |
| 691 || argv[i] == "-6" || argv[i] == "-v6") | |
| 863 | 692 { |
| 3688 | 693 format = LS_MAT5_BINARY; |
| 694 } | |
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695 else if (argv[i] == "-7" || argv[i] == "-v7") |
| 5269 | 696 { |
| 697 format = LS_MAT7_BINARY; | |
| 698 } | |
| 5256 | 699 else if (argv[i] == "-mat4-binary" || argv[i] == "-V4" |
| 700 || argv[i] == "-v4" || argv[i] == "-4") | |
| 3688 | 701 { |
| 863 | 702 format = LS_MAT_BINARY; |
| 703 } | |
| 3687 | 704 else if (argv[i] == "-hdf5" || argv[i] == "-h") |
| 705 { | |
| 706 #ifdef HAVE_HDF5 | |
| 707 format = LS_HDF5; | |
| 708 #else /* ! HAVE_HDF5 */ | |
| 709 error ("load: octave executable was not linked with HDF5 library"); | |
| 710 return retval; | |
| 711 #endif /* ! HAVE_HDF5 */ | |
| 712 } | |
| 713 else if (argv[i] == "-import" || argv[i] == "-i") | |
| 714 { | |
| 4687 | 715 warning ("load: -import ignored"); |
| 3687 | 716 } |
| 5197 | 717 else if (argv[i] == "-text" || argv[i] == "-t") |
| 718 { | |
| 719 format = LS_ASCII; | |
| 720 } | |
| 863 | 721 else |
| 722 break; | |
| 723 } | |
| 724 | |
| 1755 | 725 if (i == argc) |
| 863 | 726 { |
| 5823 | 727 print_usage (); |
| 863 | 728 return retval; |
| 729 } | |
| 730 | |
| 3523 | 731 std::string orig_fname = argv[i]; |
| 863 | 732 |
| 4574 | 733 oct_mach_info::float_format flt_fmt = oct_mach_info::flt_fmt_unknown; |
| 863 | 734 |
| 3019 | 735 bool swap = false; |
| 863 | 736 |
| 1755 | 737 if (argv[i] == "-") |
| 863 | 738 { |
| 1755 | 739 i++; |
| 863 | 740 |
| 3687 | 741 #ifdef HAVE_HDF5 |
| 742 if (format == LS_HDF5) | |
| 743 error ("load: cannot read HDF5 format from stdin"); | |
| 744 else | |
| 745 #endif /* HAVE_HDF5 */ | |
| 863 | 746 if (format != LS_UNKNOWN) |
| 747 { | |
| 5775 | 748 // FIXME -- if we have already seen EOF on a |
| 3531 | 749 // previous call, how do we fix up the state of std::cin so |
| 750 // that we can get additional input? I'm afraid that we | |
| 751 // can't fix this using std::cin only. | |
| 752 | |
| 7336 | 753 retval = do_load (std::cin, orig_fname, format, flt_fmt, |
| 4687 | 754 list_only, swap, verbose, argv, i, argc, |
| 863 | 755 nargout); |
| 756 } | |
| 757 else | |
| 758 error ("load: must specify file format if reading from stdin"); | |
| 759 } | |
| 760 else | |
| 761 { | |
| 3523 | 762 std::string fname = file_ops::tilde_expand (argv[i]); |
| 6159 | 763 |
| 764 fname = find_file_to_load (fname, orig_fname); | |
| 863 | 765 |
| 6159 | 766 if (error_state) |
| 767 return retval; | |
| 768 | |
| 769 bool use_zlib = false; | |
| 5089 | 770 |
| 863 | 771 if (format == LS_UNKNOWN) |
| 5269 | 772 format = get_file_format (fname, orig_fname, use_zlib); |
| 863 | 773 |
| 3687 | 774 #ifdef HAVE_HDF5 |
| 775 if (format == LS_HDF5) | |
| 776 { | |
| 777 i++; | |
| 778 | |
| 5089 | 779 hdf5_ifstream hdf5_file (fname.c_str ()); |
| 3687 | 780 |
| 5089 | 781 if (hdf5_file.file_id >= 0) |
| 782 { | |
| 7336 | 783 retval = do_load (hdf5_file, orig_fname, format, |
| 5089 | 784 flt_fmt, list_only, swap, verbose, |
| 785 argv, i, argc, nargout); | |
| 4844 | 786 |
| 5089 | 787 hdf5_file.close (); |
| 3687 | 788 } |
| 4845 | 789 else |
| 5369 | 790 gripe_file_open ("load", orig_fname); |
| 3687 | 791 } |
| 792 else | |
| 793 #endif /* HAVE_HDF5 */ | |
| 794 // don't insert any statements here; the "else" above has to | |
| 795 // go with the "if" below!!!!! | |
| 863 | 796 if (format != LS_UNKNOWN) |
| 797 { | |
| 1755 | 798 i++; |
| 863 | 799 |
| 3775 | 800 std::ios::openmode mode = std::ios::in; |
| 4791 | 801 |
| 802 if (format == LS_BINARY | |
| 803 #ifdef HAVE_HDF5 | |
| 804 || format == LS_HDF5 | |
| 805 #endif | |
| 806 || format == LS_MAT_BINARY | |
| 5269 | 807 || format == LS_MAT5_BINARY |
| 808 || format == LS_MAT7_BINARY) | |
| 3552 | 809 mode |= std::ios::binary; |
| 863 | 810 |
| 5269 | 811 #ifdef HAVE_ZLIB |
| 812 if (use_zlib) | |
| 813 { | |
| 814 gzifstream file (fname.c_str (), mode); | |
| 863 | 815 |
| 5269 | 816 if (file) |
| 863 | 817 { |
| 5269 | 818 if (format == LS_BINARY) |
| 819 { | |
| 820 if (read_binary_file_header (file, swap, flt_fmt) < 0) | |
| 821 { | |
| 822 if (file) file.close (); | |
| 823 return retval; | |
| 824 } | |
| 825 } | |
| 826 else if (format == LS_MAT5_BINARY | |
| 827 || format == LS_MAT7_BINARY) | |
| 863 | 828 { |
| 6625 | 829 if (read_mat5_binary_file_header (file, swap, false, orig_fname) < 0) |
| 5269 | 830 { |
| 831 if (file) file.close (); | |
| 832 return retval; | |
| 833 } | |
| 863 | 834 } |
| 5269 | 835 |
| 7336 | 836 retval = do_load (file, orig_fname, format, |
| 5269 | 837 flt_fmt, list_only, swap, verbose, |
| 838 argv, i, argc, nargout); | |
| 839 | |
| 840 file.close (); | |
| 863 | 841 } |
| 5269 | 842 else |
| 5369 | 843 gripe_file_open ("load", orig_fname); |
| 863 | 844 } |
| 845 else | |
| 5269 | 846 #endif |
| 847 { | |
| 848 std::ifstream file (fname.c_str (), mode); | |
| 849 | |
| 850 if (file) | |
| 851 { | |
| 852 if (format == LS_BINARY) | |
| 853 { | |
| 854 if (read_binary_file_header (file, swap, flt_fmt) < 0) | |
| 855 { | |
| 856 if (file) file.close (); | |
| 857 return retval; | |
| 858 } | |
| 859 } | |
| 860 else if (format == LS_MAT5_BINARY | |
| 861 || format == LS_MAT7_BINARY) | |
| 862 { | |
| 6625 | 863 if (read_mat5_binary_file_header (file, swap, false, orig_fname) < 0) |
| 5269 | 864 { |
| 865 if (file) file.close (); | |
| 866 return retval; | |
| 867 } | |
| 868 } | |
| 869 | |
| 7336 | 870 retval = do_load (file, orig_fname, format, |
| 5269 | 871 flt_fmt, list_only, swap, verbose, |
| 872 argv, i, argc, nargout); | |
| 873 | |
| 874 file.close (); | |
| 875 } | |
| 876 else | |
| 5369 | 877 error ("load: unable open input file `%s'", |
| 5269 | 878 orig_fname.c_str ()); |
| 879 } | |
| 863 | 880 } |
| 881 } | |
| 5269 | 882 |
| 604 | 883 return retval; |
| 884 } | |
| 885 | |
| 3019 | 886 // Return TRUE if PATTERN has any special globbing chars in it. |
| 887 | |
| 888 static bool | |
| 3523 | 889 glob_pattern_p (const std::string& pattern) |
| 604 | 890 { |
| 891 int open = 0; | |
| 892 | |
| 1755 | 893 int len = pattern.length (); |
| 894 | |
| 895 for (int i = 0; i < len; i++) | |
| 604 | 896 { |
| 1755 | 897 char c = pattern[i]; |
| 898 | |
| 604 | 899 switch (c) |
| 900 { | |
| 901 case '?': | |
| 902 case '*': | |
| 3019 | 903 return true; |
| 604 | 904 |
| 905 case '[': // Only accept an open brace if there is a close | |
| 906 open++; // brace to match it. Bracket expressions must be | |
| 907 continue; // complete, according to Posix.2 | |
| 908 | |
| 909 case ']': | |
| 910 if (open) | |
| 3019 | 911 return true; |
| 604 | 912 continue; |
| 4402 | 913 |
| 604 | 914 case '\\': |
| 1755 | 915 if (i == len - 1) |
| 3019 | 916 return false; |
| 604 | 917 |
| 918 default: | |
| 919 continue; | |
| 920 } | |
| 921 } | |
| 922 | |
| 3019 | 923 return false; |
| 604 | 924 } |
| 925 | |
| 4791 | 926 static void |
| 927 do_save (std::ostream& os, const octave_value& tc, | |
| 928 const std::string& name, const std::string& help, | |
| 7336 | 929 bool global, load_save_format fmt, bool save_as_floats) |
| 604 | 930 { |
| 931 switch (fmt) | |
| 932 { | |
| 933 case LS_ASCII: | |
| 6974 | 934 save_ascii_data (os, tc, name, global, 0); |
| 604 | 935 break; |
| 936 | |
| 937 case LS_BINARY: | |
| 630 | 938 save_binary_data (os, tc, name, help, global, save_as_floats); |
| 604 | 939 break; |
| 940 | |
| 5938 | 941 case LS_MAT_ASCII: |
| 942 case LS_MAT_ASCII_LONG: | |
| 943 if (! save_mat_ascii_data (os, tc, fmt == LS_MAT_ASCII ? 8 : 16)) | |
| 944 warning ("save: unable to save %s in ASCII format", name.c_str ()); | |
| 945 break; | |
| 946 | |
| 667 | 947 case LS_MAT_BINARY: |
| 948 save_mat_binary_data (os, tc, name); | |
| 949 break; | |
| 950 | |
| 3687 | 951 #ifdef HAVE_HDF5 |
| 952 case LS_HDF5: | |
| 953 save_hdf5_data (os, tc, name, help, global, save_as_floats); | |
| 954 break; | |
| 955 #endif /* HAVE_HDF5 */ | |
| 956 | |
| 3688 | 957 case LS_MAT5_BINARY: |
| 5269 | 958 save_mat5_binary_element (os, tc, name, global, false, save_as_floats); |
| 959 break; | |
| 960 | |
| 961 case LS_MAT7_BINARY: | |
| 962 save_mat5_binary_element (os, tc, name, global, true, save_as_floats); | |
| 3688 | 963 break; |
| 964 | |
| 604 | 965 default: |
| 775 | 966 gripe_unrecognized_data_fmt ("save"); |
| 604 | 967 break; |
| 968 } | |
| 969 } | |
| 970 | |
| 4791 | 971 // Save the info from SR on stream OS in the format specified by FMT. |
| 972 | |
| 973 void | |
| 7336 | 974 do_save (std::ostream& os, const symbol_table::symbol_record& sr, |
| 975 load_save_format fmt, bool save_as_floats) | |
| 4791 | 976 { |
| 7336 | 977 octave_value val = sr.varval (); |
| 4791 | 978 |
| 7336 | 979 if (val.is_defined ()) |
| 4791 | 980 { |
| 7336 | 981 std::string name = sr.name (); |
| 982 std::string help; | |
| 983 bool global = sr.is_global (); | |
| 4791 | 984 |
| 7336 | 985 do_save (os, val, name, help, global, fmt, save_as_floats); |
| 4791 | 986 } |
| 987 } | |
| 988 | |
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989 // save fields of a scalar structure STR matching PATTERN on stream OS |
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990 // in the format specified by FMT. |
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991 |
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992 static size_t |
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993 save_fields (std::ostream& os, const Octave_map& m, |
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994 const std::string& pattern, |
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995 load_save_format fmt, bool save_as_floats) |
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996 { |
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997 glob_match pat (pattern); |
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998 |
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999 size_t saved = 0; |
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1000 |
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1001 for (Octave_map::const_iterator p = m.begin (); p != m.end (); p++) |
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1002 { |
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1003 std::string empty_str; |
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1004 |
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1005 if (pat.match(p->first)) |
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1006 { |
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1007 do_save (os, p->second(0), p->first, empty_str, |
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1008 0, fmt, save_as_floats); |
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1009 |
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1010 saved++; |
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1011 } |
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1012 } |
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1013 |
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1014 return saved; |
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1015 } |
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1016 |
| 604 | 1017 // Save variables with names matching PATTERN on stream OS in the |
| 5794 | 1018 // format specified by FMT. |
| 604 | 1019 |
| 7336 | 1020 static size_t |
| 5794 | 1021 save_vars (std::ostream& os, const std::string& pattern, |
| 4791 | 1022 load_save_format fmt, bool save_as_floats) |
| 604 | 1023 { |
| 7336 | 1024 std::list<symbol_table::symbol_record> vars = symbol_table::glob (pattern); |
| 1025 | |
| 1026 size_t saved = 0; | |
| 3355 | 1027 |
| 7336 | 1028 typedef std::list<symbol_table::symbol_record>::const_iterator const_vars_iterator; |
| 3355 | 1029 |
| 7336 | 1030 for (const_vars_iterator p = vars.begin (); p != vars.end (); p++) |
| 620 | 1031 { |
| 7336 | 1032 do_save (os, *p, fmt, save_as_floats); |
| 620 | 1033 |
| 1034 if (error_state) | |
| 1035 break; | |
| 7336 | 1036 |
| 1037 saved++; | |
| 620 | 1038 } |
| 604 | 1039 |
| 1040 return saved; | |
| 1041 } | |
| 1042 | |
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1043 static string_vector |
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1044 parse_save_options (const string_vector &argv, |
| 5284 | 1045 load_save_format &format, bool &append, |
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1046 bool &save_as_floats, bool &use_zlib) |
| 604 | 1047 { |
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1048 string_vector retval; |
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1049 int argc = argv.length (); |
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1050 |
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1051 bool do_double = false; |
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1052 |
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1053 for (int i = 0; i < argc; i++) |
| 5284 | 1054 { |
| 1055 if (argv[i] == "-append") | |
| 1056 { | |
| 1057 append = true; | |
| 1058 } | |
| 1059 else if (argv[i] == "-ascii" || argv[i] == "-a") | |
| 1060 { | |
| 5938 | 1061 format = LS_MAT_ASCII; |
| 5284 | 1062 } |
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1063 else if (argv[i] == "-double") |
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1064 { |
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1065 do_double = true; |
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1066 } |
| 5284 | 1067 else if (argv[i] == "-text" || argv[i] == "-t") |
| 1068 { | |
| 1069 format = LS_ASCII; | |
| 1070 } | |
| 1071 else if (argv[i] == "-binary" || argv[i] == "-b") | |
| 1072 { | |
| 1073 format = LS_BINARY; | |
| 1074 } | |
| 1075 else if (argv[i] == "-hdf5" || argv[i] == "-h") | |
| 1076 { | |
| 3687 | 1077 #ifdef HAVE_HDF5 |
| 5284 | 1078 format = LS_HDF5; |
| 1079 #else /* ! HAVE_HDF5 */ | |
| 1080 error ("save: octave executable was not linked with HDF5 library"); | |
| 1081 #endif /* ! HAVE_HDF5 */ | |
| 1082 } | |
| 1083 else if (argv[i] == "-mat-binary" || argv[i] == "-mat" | |
| 1084 || argv[i] == "-m" || argv[i] == "-6" || argv[i] == "-v6" | |
| 1085 || argv[i] == "-V6") | |
| 1086 { | |
| 1087 format = LS_MAT5_BINARY; | |
| 1088 } | |
| 1089 #ifdef HAVE_ZLIB | |
| 1090 else if (argv[i] == "-mat7-binary" || argv[i] == "-7" | |
| 1091 || argv[i] == "-v7" || argv[i] == "-V7") | |
| 1092 { | |
| 1093 format = LS_MAT7_BINARY; | |
| 1094 } | |
| 1095 #endif | |
| 1096 else if (argv[i] == "-mat4-binary" || argv[i] == "-V4" | |
| 1097 || argv[i] == "-v4" || argv[i] == "-4") | |
| 1098 { | |
| 1099 format = LS_MAT_BINARY; | |
| 1100 } | |
| 1101 else if (argv[i] == "-float-binary" || argv[i] == "-f") | |
| 1102 { | |
| 1103 format = LS_BINARY; | |
| 1104 save_as_floats = true; | |
| 1105 } | |
| 1106 else if (argv[i] == "-float-hdf5") | |
| 1107 { | |
| 1108 #ifdef HAVE_HDF5 | |
| 1109 format = LS_HDF5; | |
| 1110 save_as_floats = true; | |
| 1111 #else /* ! HAVE_HDF5 */ | |
| 1112 error ("save: octave executable was not linked with HDF5 library"); | |
| 1113 #endif /* ! HAVE_HDF5 */ | |
| 1114 } | |
| 1115 #ifdef HAVE_ZLIB | |
| 1116 else if (argv[i] == "-zip" || argv[i] == "-z") | |
| 1117 { | |
| 1118 use_zlib = true; | |
| 1119 } | |
| 1120 #endif | |
| 1121 else | |
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1122 retval.append (argv[i]); |
| 5284 | 1123 } |
| 1124 | |
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1125 if (do_double) |
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1126 { |
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1127 if (format == LS_MAT_ASCII) |
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1128 format = LS_MAT_ASCII_LONG; |
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1129 else |
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1130 warning ("save: \"-double\" option only has an effect with \"-ascii\""); |
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1131 } |
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1132 |
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1133 return retval; |
| 5284 | 1134 } |
| 1135 | |
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1136 static string_vector |
| 5284 | 1137 parse_save_options (const std::string &arg, load_save_format &format, |
| 1138 bool &append, bool &save_as_floats, | |
|
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1139 bool &use_zlib) |
| 5284 | 1140 { |
| 5765 | 1141 std::istringstream is (arg); |
| 5284 | 1142 std::string str; |
| 1143 string_vector argv; | |
| 1144 | |
| 5765 | 1145 while (! is.eof ()) |
| 5284 | 1146 { |
| 1147 is >> str; | |
| 1148 argv.append (str); | |
| 1149 } | |
| 1150 | |
|
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1151 return parse_save_options (argv, format, append, save_as_floats, |
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1152 use_zlib); |
| 604 | 1153 } |
| 1154 | |
| 4329 | 1155 void |
| 3523 | 1156 write_header (std::ostream& os, load_save_format format) |
| 863 | 1157 { |
| 3185 | 1158 switch (format) |
| 863 | 1159 { |
| 3185 | 1160 case LS_BINARY: |
| 1161 { | |
| 1162 os << (oct_mach_info::words_big_endian () | |
| 1163 ? "Octave-1-B" : "Octave-1-L"); | |
| 1164 | |
| 1165 oct_mach_info::float_format flt_fmt = | |
| 1166 oct_mach_info::native_float_format (); | |
| 1167 | |
| 5760 | 1168 char tmp = static_cast<char> (float_format_to_mopt_digit (flt_fmt)); |
| 3185 | 1169 |
| 5760 | 1170 os.write (&tmp, 1); |
| 3185 | 1171 } |
| 3688 | 1172 break; |
| 1173 | |
| 1174 case LS_MAT5_BINARY: | |
| 5269 | 1175 case LS_MAT7_BINARY: |
| 3688 | 1176 { |
| 3775 | 1177 char const * versionmagic; |
| 6959 | 1178 int16_t number = *(reinterpret_cast<const int16_t *>("\x00\x01")); |
| 3688 | 1179 struct tm bdt; |
| 1180 time_t now; | |
| 1181 char headertext[128]; | |
| 1182 | |
| 1183 time (&now); | |
| 1184 bdt = *gmtime (&now); | |
| 1185 memset (headertext, ' ', 124); | |
| 1186 // ISO 8601 format date | |
| 1187 strftime (headertext, 124, "MATLAB 5.0 MAT-file, written by Octave " | |
| 5760 | 1188 OCTAVE_VERSION ", %Y-%m-%d %T UTC", &bdt); |
| 3688 | 1189 |
| 1190 // The first pair of bytes give the version of the MAT file | |
| 1191 // format. The second pair of bytes form a magic number which | |
| 1192 // signals a MAT file. MAT file data are always written in | |
| 1193 // native byte order. The order of the bytes in the second | |
| 1194 // pair indicates whether the file was written by a big- or | |
| 1195 // little-endian machine. However, the version number is | |
| 1196 // written in the *opposite* byte order from everything else! | |
| 1197 if (number == 1) | |
| 1198 versionmagic = "\x01\x00\x4d\x49"; // this machine is big endian | |
| 1199 else | |
| 1200 versionmagic = "\x00\x01\x49\x4d"; // this machine is little endian | |
| 1201 | |
| 1202 memcpy (headertext+124, versionmagic, 4); | |
| 1203 os.write (headertext, 128); | |
| 1204 } | |
| 1205 | |
| 1206 break; | |
| 3185 | 1207 |
| 3687 | 1208 #ifdef HAVE_HDF5 |
| 1209 case LS_HDF5: | |
| 1210 #endif /* HAVE_HDF5 */ | |
| 3185 | 1211 case LS_ASCII: |
| 1212 { | |
| 3709 | 1213 octave_localtime now; |
| 1214 | |
| 1215 std::string comment_string = now.strftime (Vsave_header_format_string); | |
| 1216 | |
| 1217 if (! comment_string.empty ()) | |
| 1218 { | |
| 3687 | 1219 #ifdef HAVE_HDF5 |
| 3709 | 1220 if (format == LS_HDF5) |
| 1221 { | |
| 5760 | 1222 hdf5_ofstream& hs = dynamic_cast<hdf5_ofstream&> (os); |
| 3709 | 1223 H5Gset_comment (hs.file_id, "/", comment_string.c_str ()); |
| 1224 } | |
| 1225 else | |
| 3687 | 1226 #endif /* HAVE_HDF5 */ |
| 3709 | 1227 os << comment_string << "\n"; |
| 3687 | 1228 } |
| 3185 | 1229 } |
| 1230 break; | |
| 1231 | |
| 1232 default: | |
| 1233 break; | |
| 863 | 1234 } |
| 1235 } | |
| 1236 | |
| 1237 static void | |
| 3769 | 1238 save_vars (const string_vector& argv, int argv_idx, int argc, |
| 5794 | 1239 std::ostream& os, load_save_format fmt, |
| 3185 | 1240 bool save_as_floats, bool write_header_info) |
| 863 | 1241 { |
| 3185 | 1242 if (write_header_info) |
| 1243 write_header (os, fmt); | |
| 863 | 1244 |
| 1755 | 1245 if (argv_idx == argc) |
| 863 | 1246 { |
| 5794 | 1247 save_vars (os, "*", fmt, save_as_floats); |
| 863 | 1248 } |
|
7635
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1249 else if (argv[argv_idx] == "-struct") |
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1250 { |
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1251 if (++argv_idx >= argc) |
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1252 { |
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1253 error ("save: missing struct name"); |
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1254 return; |
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1255 } |
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1256 |
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1257 std::string struct_name = argv[argv_idx]; |
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1258 |
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1259 if (! symbol_table::is_variable (struct_name)) |
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1260 { |
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1261 error ("save: no such variable: `%s'", struct_name.c_str ()); |
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1262 return; |
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1263 } |
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1264 |
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1265 octave_value struct_var = symbol_table::varref (struct_name); |
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1266 |
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1267 if (! struct_var.is_map () || struct_var.numel () != 1) |
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1268 { |
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1269 error ("save: `%s' is not a scalar structure", |
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1270 struct_name.c_str ()); |
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1271 return; |
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1272 } |
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1273 Octave_map struct_var_map = struct_var.map_value (); |
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1274 |
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1275 ++argv_idx; |
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1276 |
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1277 if (argv_idx < argc) |
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1278 { |
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1279 for (int i = argv_idx; i < argc; i++) |
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1280 { |
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1281 if (! save_fields (os, struct_var_map, argv[i], fmt, |
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1282 save_as_floats)) |
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1283 { |
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1284 warning ("save: no such field `%s.%s'", |
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1285 struct_name.c_str (), argv[i].c_str ()); |
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1286 } |
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1287 } |
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1288 } |
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1289 else |
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1290 save_fields (os, struct_var_map, "*", fmt, save_as_floats); |
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1291 } |
| 863 | 1292 else |
| 1293 { | |
| 1755 | 1294 for (int i = argv_idx; i < argc; i++) |
| 863 | 1295 { |
| 5794 | 1296 if (! save_vars (os, argv[i], fmt, save_as_floats)) |
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1297 warning ("save: no such variable `%s'", argv[i].c_str ()); |
| 863 | 1298 } |
| 1299 } | |
| 1300 } | |
| 1301 | |
| 5284 | 1302 static void |
| 1303 dump_octave_core (std::ostream& os, const char *fname, load_save_format fmt, | |
| 1304 bool save_as_floats) | |
| 4791 | 1305 { |
| 1306 write_header (os, fmt); | |
| 1307 | |
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1308 std::list<symbol_table::symbol_record> vars |
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1309 = symbol_table::all_variables (symbol_table::top_scope (), 0); |
| 4791 | 1310 |
| 1311 double save_mem_size = 0; | |
| 1312 | |
| 7336 | 1313 typedef std::list<symbol_table::symbol_record>::const_iterator const_vars_iterator; |
| 1314 | |
| 1315 for (const_vars_iterator p = vars.begin (); p != vars.end (); p++) | |
| 4791 | 1316 { |
| 7336 | 1317 octave_value val = p->varval (); |
| 4791 | 1318 |
| 7336 | 1319 if (val.is_defined ()) |
| 4791 | 1320 { |
| 7336 | 1321 std::string name = p->name (); |
| 1322 std::string help; | |
| 1323 bool global = p->is_global (); | |
| 4791 | 1324 |
| 7336 | 1325 double val_size = val.byte_size () / 1024; |
| 4791 | 1326 |
| 7336 | 1327 // FIXME -- maybe we should try to throw out the largest first... |
| 4791 | 1328 |
| 7336 | 1329 if (Voctave_core_file_limit < 0 |
| 1330 || save_mem_size + val_size < Voctave_core_file_limit) | |
| 1331 { | |
| 1332 save_mem_size += val_size; | |
| 4791 | 1333 |
| 7336 | 1334 do_save (os, val, name, help, global, fmt, save_as_floats); |
| 1335 | |
| 1336 if (error_state) | |
| 1337 break; | |
| 4791 | 1338 } |
| 1339 } | |
| 1340 } | |
| 1341 | |
| 1342 message (0, "save to `%s' complete", fname); | |
| 1343 } | |
| 1344 | |
| 1345 void | |
| 1346 dump_octave_core (void) | |
| 1380 | 1347 { |
| 3189 | 1348 if (Vcrash_dumps_octave_core) |
| 1380 | 1349 { |
| 5775 | 1350 // FIXME -- should choose better file name? |
| 3189 | 1351 |
| 4791 | 1352 const char *fname = Voctave_core_file_name.c_str (); |
| 3189 | 1353 |
| 1354 message (0, "attempting to save variables to `%s'...", fname); | |
| 1355 | |
| 5284 | 1356 load_save_format format = LS_BINARY; |
| 1357 | |
| 1358 bool save_as_floats = false; | |
| 1359 | |
| 1360 bool append = false; | |
| 3189 | 1361 |
| 5284 | 1362 bool use_zlib = false; |
| 1363 | |
| 1364 parse_save_options (Voctave_core_file_options, format, append, | |
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1365 save_as_floats, use_zlib); |
| 5284 | 1366 |
| 1367 std::ios::openmode mode = std::ios::out; | |
| 4791 | 1368 |
| 6625 | 1369 // Matlab v7 files are always compressed |
| 1370 if (format == LS_MAT7_BINARY) | |
| 1371 use_zlib = false; | |
| 1372 | |
| 4791 | 1373 if (format == LS_BINARY |
| 1374 #ifdef HAVE_HDF5 | |
| 1375 || format == LS_HDF5 | |
| 1376 #endif | |
| 1377 || format == LS_MAT_BINARY | |
| 5269 | 1378 || format == LS_MAT5_BINARY |
| 1379 || format == LS_MAT7_BINARY) | |
| 3552 | 1380 mode |= std::ios::binary; |
| 3189 | 1381 |
| 5284 | 1382 mode |= append ? std::ios::ate : std::ios::trunc; |
| 1383 | |
| 3687 | 1384 #ifdef HAVE_HDF5 |
| 1385 if (format == LS_HDF5) | |
| 3189 | 1386 { |
| 6760 | 1387 hdf5_ofstream file (fname, mode); |
| 3687 | 1388 |
| 1389 if (file.file_id >= 0) | |
| 1390 { | |
| 5284 | 1391 dump_octave_core (file, fname, format, save_as_floats); |
| 3687 | 1392 |
| 1393 file.close (); | |
| 1394 } | |
| 1395 else | |
| 1396 warning ("unable to open `%s' for writing...", fname); | |
| 3189 | 1397 } |
| 1398 else | |
| 3687 | 1399 #endif /* HAVE_HDF5 */ |
| 1400 // don't insert any commands here! The open brace below must | |
| 1401 // go with the else above! | |
| 1402 { | |
| 5284 | 1403 #ifdef HAVE_ZLIB |
| 1404 if (use_zlib) | |
| 3687 | 1405 { |
| 5284 | 1406 gzofstream file (fname, mode); |
| 4791 | 1407 |
| 5284 | 1408 if (file) |
| 1409 { | |
| 1410 dump_octave_core (file, fname, format, save_as_floats); | |
| 1411 | |
| 1412 file.close (); | |
| 1413 } | |
| 1414 else | |
| 1415 warning ("unable to open `%s' for writing...", fname); | |
| 3687 | 1416 } |
| 1417 else | |
| 5284 | 1418 #endif |
| 1419 { | |
| 1420 std::ofstream file (fname, mode); | |
| 1421 | |
| 1422 if (file) | |
| 1423 { | |
| 1424 dump_octave_core (file, fname, format, save_as_floats); | |
| 1425 | |
| 1426 file.close (); | |
| 1427 } | |
| 1428 else | |
| 1429 warning ("unable to open `%s' for writing...", fname); | |
| 1430 } | |
| 3687 | 1431 } |
| 1380 | 1432 } |
| 1433 } | |
| 1434 | |
| 5269 | 1435 #ifdef HAVE_ZLIB |
| 1436 #define HAVE_ZLIB_HELP_STRING "" | |
| 1437 #else /* ! HAVE_ZLIB */ | |
| 1438 #define HAVE_ZLIB_HELP_STRING "\n\ | |
| 1439 This option is not available, as this Octave executable was not linked with\n\ | |
| 1440 the zlib library." | |
| 1441 #endif /* ! HAVE ZLIB */ | |
| 1442 | |
| 4208 | 1443 DEFCMD (save, args, , |
| 3372 | 1444 "-*- texinfo -*-\n\ |
| 5665 | 1445 @deffn {Command} save options file @var{v1} @var{v2} @dots{}\n\ |
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1446 @deffnx {Command} save options file -struct @var{STR} @var{f1} @var{f2} @dots{}\n\ |
| 7247 | 1447 Save the named variables @var{v1}, @var{v2}, @dots{}, in the file\n\ |
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1448 @var{file}. The special filename @samp{-} may be used to write the\n\ |
| 3372 | 1449 output to your terminal. If no variable names are listed, Octave saves\n\ |
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1450 all the variables in the current scope.\n\ |
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1451 If the @code{-struct} modifier is used, fields @var{f1} @var{f2} @dots{}\n\ |
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1452 of the scalar structure @var{STR} are saved as if they were variables\n\ |
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1453 with corresponding names.\n\ |
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1454 Valid options for the @code{save} command are listed in the following table.\n\ |
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1455 Options that modify the output format override the format specified by \n\ |
| 5794 | 1456 @code{default_save_options}.\n\ |
| 3372 | 1457 \n\ |
| 5665 | 1458 If save is invoked using the functional form\n\ |
| 1459 \n\ | |
| 1460 @example\n\ | |
| 7247 | 1461 save (\"-option1\", @dots{}, \"file\", \"v1\", @dots{})\n\ |
| 5665 | 1462 @end example\n\ |
| 1463 \n\ | |
| 1464 @noindent\n\ | |
| 1465 then the @var{options}, @var{file}, and variable name arguments\n\ | |
| 7247 | 1466 (@var{v1}, @dots{}) must be specified as character strings.\n\ |
| 5665 | 1467 \n\ |
| 3372 | 1468 @table @code\n\ |
| 1469 @item -ascii\n\ | |
| 5938 | 1470 Save a single matrix in a text file.\n\ |
| 5197 | 1471 \n\ |
| 3372 | 1472 @item -binary\n\ |
| 1473 Save the data in Octave's binary data format.\n\ | |
| 1474 \n\ | |
| 1475 @item -float-binary\n\ | |
| 1476 Save the data in Octave's binary data format but only using single\n\ | |
| 1477 precision. You should use this format only if you know that all the\n\ | |
| 1478 values to be saved can be represented in single precision.\n\ | |
| 1479 \n\ | |
| 5269 | 1480 @item -V7\n\ |
| 1481 @itemx -v7\n\ | |
| 1482 @itemx -7\n\ | |
| 1483 @itemx -mat7-binary\n\ | |
| 1484 Save the data in @sc{Matlab}'s v7 binary data format.\n" | |
| 1485 | |
| 1486 HAVE_ZLIB_HELP_STRING | |
| 1487 | |
| 1488 "\n\ | |
| 1489 @item -V6\n\ | |
| 5284 | 1490 @itemx -v6\n\ |
| 5269 | 1491 @itemx -6\n\ |
| 1492 @itemx -mat\n\ | |
| 4884 | 1493 @itemx -mat-binary\n\ |
| 5269 | 1494 Save the data in @sc{Matlab}'s v6 binary data format.\n\ |
| 3372 | 1495 \n\ |
| 5256 | 1496 @item -V4\n\ |
| 1497 @itemx -v4\n\ | |
| 1498 @itemx -4\n\ | |
| 1499 @itemx -mat4-binary\n\ | |
| 3688 | 1500 Save the data in the binary format written by @sc{Matlab} version 4.\n\ |
| 1501 \n\ | |
| 3687 | 1502 @item -hdf5\n\ |
| 1503 Save the data in HDF5 format.\n\ | |
| 1504 (HDF5 is a free, portable binary format developed by the National\n\ | |
| 1505 Center for Supercomputing Applications at the University of Illinois.)\n" | |
| 1506 | |
| 1507 HAVE_HDF5_HELP_STRING | |
| 1508 | |
| 1509 "\n\ | |
| 1510 @item -float-hdf5\n\ | |
| 1511 Save the data in HDF5 format but only using single precision.\n\ | |
| 1512 You should use this format only if you know that all the\n\ | |
| 1513 values to be saved can be represented in single precision.\n\ | |
| 1514 \n\ | |
| 5269 | 1515 @item -zip\n\ |
| 1516 @itemx -z\n\ | |
| 1517 Use the gzip algorithm to compress the file. This works equally on files that\n\ | |
| 1518 are compressed with gzip outside of octave, and gzip can equally be used to\n\ | |
| 5380 | 1519 convert the files for backward compatibility.\n" |
| 5322 | 1520 |
| 1521 HAVE_ZLIB_HELP_STRING | |
| 1522 | |
| 5269 | 1523 "@end table\n\ |
| 604 | 1524 \n\ |
| 3372 | 1525 The list of variables to save may include wildcard patterns containing\n\ |
| 1526 the following special characters:\n\ | |
| 1527 @table @code\n\ | |
| 1528 @item ?\n\ | |
| 1529 Match any single character.\n\ | |
| 1530 \n\ | |
| 1531 @item *\n\ | |
| 1532 Match zero or more characters.\n\ | |
| 1533 \n\ | |
| 1534 @item [ @var{list} ]\n\ | |
| 1535 Match the list of characters specified by @var{list}. If the first\n\ | |
| 1536 character is @code{!} or @code{^}, match all characters except those\n\ | |
| 1537 specified by @var{list}. For example, the pattern @samp{[a-zA-Z]} will\n\ | |
| 1538 match all lower and upper case alphabetic characters. \n\ | |
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1539 \n\ |
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1540 Wildcards may also be used in the field names specifications when using\n\ |
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1541 the @code{-struct} modifier (but not in the struct name itself).\n\ |
| 5197 | 1542 \n\ |
| 5198 | 1543 @item -text\n\ |
| 5197 | 1544 Save the data in Octave's text data format.\n\ |
| 3372 | 1545 @end table\n\ |
| 1546 \n\ | |
| 1547 Except when using the @sc{Matlab} binary data file format, saving global\n\ | |
| 1548 variables also saves the global status of the variable, so that if it is\n\ | |
| 1549 restored at a later time using @samp{load}, it will be restored as a\n\ | |
| 1550 global variable.\n\ | |
| 1551 \n\ | |
| 1552 The command\n\ | |
| 1553 \n\ | |
| 1554 @example\n\ | |
| 1555 save -binary data a b*\n\ | |
| 1556 @end example\n\ | |
| 1557 \n\ | |
| 1558 @noindent\n\ | |
| 1559 saves the variable @samp{a} and all variables beginning with @samp{b} to\n\ | |
| 1560 the file @file{data} in Octave's binary format.\n\ | |
| 1561 @end deffn") | |
| 604 | 1562 { |
| 2086 | 1563 octave_value_list retval; |
| 604 | 1564 |
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1565 int argc = args.length (); |
| 1755 | 1566 |
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1567 string_vector argv = args.make_argv (); |
| 1755 | 1568 |
| 1569 if (error_state) | |
| 1570 return retval; | |
| 604 | 1571 |
| 1358 | 1572 // Here is where we would get the default save format if it were |
| 1573 // stored in a user preference variable. | |
| 604 | 1574 |
| 3019 | 1575 bool save_as_floats = false; |
| 630 | 1576 |
| 5284 | 1577 load_save_format format = LS_ASCII; |
| 604 | 1578 |
| 3185 | 1579 bool append = false; |
| 1580 | |
| 5269 | 1581 bool use_zlib = false; |
| 1582 | |
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1583 // get default options |
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1584 parse_save_options (Vdefault_save_options, format, append, save_as_floats, |
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1585 use_zlib); |
| 5351 | 1586 |
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1587 // override from command line |
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1588 argv = parse_save_options (argv, format, append, save_as_floats, |
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1589 use_zlib); |
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1590 argc = argv.length (); |
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1591 int i = 0; |
| 5197 | 1592 |
| 5284 | 1593 if (error_state) |
| 1594 return retval; | |
| 604 | 1595 |
| 2057 | 1596 if (i == argc) |
| 604 | 1597 { |
| 5823 | 1598 print_usage (); |
| 604 | 1599 return retval; |
| 1600 } | |
| 1601 | |
| 630 | 1602 if (save_as_floats && format == LS_ASCII) |
| 1603 { | |
| 1604 error ("save: cannot specify both -ascii and -float-binary"); | |
| 1605 return retval; | |
| 1606 } | |
| 1607 | |
| 1755 | 1608 if (argv[i] == "-") |
| 604 | 1609 { |
| 1755 | 1610 i++; |
| 863 | 1611 |
| 3687 | 1612 #ifdef HAVE_HDF5 |
| 1613 if (format == LS_HDF5) | |
| 4687 | 1614 error ("save: cannot write HDF5 format to stdout"); |
| 3687 | 1615 else |
| 1616 #endif /* HAVE_HDF5 */ | |
| 1617 // don't insert any commands here! the brace below must go | |
| 1618 // with the "else" above! | |
| 1619 { | |
| 6759 | 1620 if (append) |
| 1621 warning ("save: ignoring -append option for output to stdout"); | |
| 1622 | |
| 5775 | 1623 // FIXME -- should things intended for the screen end up |
| 3687 | 1624 // in a octave_value (string)? |
| 1625 | |
| 5794 | 1626 save_vars (argv, i, argc, octave_stdout, format, |
| 3687 | 1627 save_as_floats, true); |
| 1628 } | |
| 604 | 1629 } |
| 1755 | 1630 |
| 1631 // Guard against things like `save a*', which are probably mistakes... | |
| 1632 | |
| 1633 else if (i == argc - 1 && glob_pattern_p (argv[i])) | |
| 1634 { | |
| 5823 | 1635 print_usage (); |
| 604 | 1636 return retval; |
| 1637 } | |
| 1638 else | |
| 1639 { | |
| 3523 | 1640 std::string fname = file_ops::tilde_expand (argv[i]); |
| 1755 | 1641 |
| 1642 i++; | |
| 604 | 1643 |
| 6625 | 1644 // Matlab v7 files are always compressed |
| 1645 if (format == LS_MAT7_BINARY) | |
| 1646 use_zlib = false; | |
| 1647 | |
| 6759 | 1648 std::ios::openmode mode |
| 1649 = append ? (std::ios::app | std::ios::ate) : std::ios::out; | |
| 1650 | |
| 4791 | 1651 if (format == LS_BINARY |
| 1652 #ifdef HAVE_HDF5 | |
| 1653 || format == LS_HDF5 | |
| 1654 #endif | |
| 1655 || format == LS_MAT_BINARY | |
| 5269 | 1656 || format == LS_MAT5_BINARY |
| 1657 || format == LS_MAT7_BINARY) | |
| 3552 | 1658 mode |= std::ios::binary; |
| 3538 | 1659 |
| 3687 | 1660 #ifdef HAVE_HDF5 |
| 1661 if (format == LS_HDF5) | |
| 863 | 1662 { |
| 6760 | 1663 // FIXME. It should be possible to append to HDF5 files. |
| 6759 | 1664 if (append) |
| 1665 { | |
| 1666 error ("save: appending to HDF5 files is not implemented"); | |
| 1667 return retval; | |
| 1668 } | |
| 1669 | |
| 6760 | 1670 bool write_header_info = ! (append && |
| 1671 H5Fis_hdf5 (fname.c_str ()) > 0); | |
| 3687 | 1672 |
| 6760 | 1673 hdf5_ofstream hdf5_file (fname.c_str (), mode); |
| 1674 | |
| 1675 if (hdf5_file.file_id != -1) | |
| 4687 | 1676 { |
| 5794 | 1677 save_vars (argv, i, argc, hdf5_file, format, |
| 6760 | 1678 save_as_floats, write_header_info); |
| 3687 | 1679 |
| 4687 | 1680 hdf5_file.close (); |
| 3687 | 1681 } |
| 1682 else | |
| 1683 { | |
| 5369 | 1684 gripe_file_open ("save", fname); |
| 3687 | 1685 return retval; |
| 1686 } | |
| 863 | 1687 } |
| 1688 else | |
| 3687 | 1689 #endif /* HAVE_HDF5 */ |
| 1690 // don't insert any statements here! The brace below must go | |
| 1691 // with the "else" above! | |
| 604 | 1692 { |
| 5269 | 1693 #ifdef HAVE_ZLIB |
| 1694 if (use_zlib) | |
| 3687 | 1695 { |
| 5269 | 1696 gzofstream file (fname.c_str (), mode); |
| 1697 | |
| 1698 if (file) | |
| 1699 { | |
| 6760 | 1700 bool write_header_info = ! file.tellp (); |
| 1701 | |
| 5794 | 1702 save_vars (argv, i, argc, file, format, |
| 5269 | 1703 save_as_floats, write_header_info); |
| 1704 | |
| 1705 file.close (); | |
| 1706 } | |
| 1707 else | |
| 1708 { | |
| 5369 | 1709 gripe_file_open ("save", fname); |
| 5269 | 1710 return retval; |
| 1711 } | |
| 3687 | 1712 } |
| 1713 else | |
| 5269 | 1714 #endif |
| 3687 | 1715 { |
| 5269 | 1716 std::ofstream file (fname.c_str (), mode); |
| 1717 | |
| 1718 if (file) | |
| 1719 { | |
| 6760 | 1720 bool write_header_info = ! file.tellp (); |
| 1721 | |
| 5794 | 1722 save_vars (argv, i, argc, file, format, |
| 5269 | 1723 save_as_floats, write_header_info); |
| 1724 | |
| 1725 file.close (); | |
| 1726 } | |
| 1727 else | |
| 1728 { | |
| 5369 | 1729 gripe_file_open ("save", fname); |
| 5269 | 1730 return retval; |
| 1731 } | |
| 3687 | 1732 } |
| 604 | 1733 } |
| 1734 } | |
| 1735 | |
| 1736 return retval; | |
| 1737 } | |
| 1738 | |
| 5794 | 1739 DEFUN (crash_dumps_octave_core, args, nargout, |
| 1740 "-*- texinfo -*-\n\ | |
| 1741 @deftypefn {Built-in Function} {@var{val} =} crash_dumps_octave_core ()\n\ | |
| 1742 @deftypefnx {Built-in Function} {@var{old_val} =} crash_dumps_octave_core (@var{new_val})\n\ | |
| 1743 Query or set the internal variable that controls whether Octave tries\n\ | |
| 6653 | 1744 to save all current variables to the file \"octave-core\" if it\n\ |
| 5794 | 1745 crashes or receives a hangup, terminate or similar signal.\n\ |
| 1746 @seealso{octave_core_file_limit, octave_core_file_name, octave_core_file_options}\n\ | |
| 1747 @end deftypefn") | |
| 2194 | 1748 { |
| 5794 | 1749 return SET_INTERNAL_VARIABLE (crash_dumps_octave_core); |
| 2194 | 1750 } |
| 1751 | |
| 5794 | 1752 DEFUN (default_save_options, args, nargout, |
| 1753 "-*- texinfo -*-\n\ | |
| 1754 @deftypefn {Built-in Function} {@var{val} =} default_save_options ()\n\ | |
| 1755 @deftypefnx {Built-in Function} {@var{old_val} =} default_save_options (@var{new_val})\n\ | |
| 1756 Query or set the internal variable that specifies the default options\n\ | |
| 1757 for the @code{save} command, and defines the default format.\n\ | |
| 1758 Typical values include @code{\"-ascii\"}, @code{\"-ascii -zip\"}.\n\ | |
| 1759 The default value is @code{-ascii}.\n\ | |
| 1760 @seealso{save}\n\ | |
| 1761 @end deftypefn") | |
| 4788 | 1762 { |
| 5794 | 1763 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (default_save_options); |
| 4788 | 1764 } |
| 1765 | |
| 5794 | 1766 DEFUN (octave_core_file_limit, args, nargout, |
| 1767 "-*- texinfo -*-\n\ | |
| 1768 @deftypefn {Built-in Function} {@var{val} =} octave_core_file_limit ()\n\ | |
| 1769 @deftypefnx {Built-in Function} {@var{old_val} =} octave_core_file_limit (@var{new_val})\n\ | |
| 1770 Query or set the internal variable that specifies the maximum amount\n\ | |
| 1771 of memory (in kilobytes) of the top-level workspace that Octave will\n\ | |
| 1772 attempt to save when writing data to the crash dump file (the name of\n\ | |
| 1773 the file is specified by @var{octave_core_file_name}). If\n\ | |
| 7001 | 1774 @var{octave_core_file_options} flags specify a binary format,\n\ |
| 5794 | 1775 then @var{octave_core_file_limit} will be approximately the maximum\n\ |
| 1776 size of the file. If a text file format is used, then the file could\n\ | |
| 1777 be much larger than the limit. The default value is -1 (unlimited)\n\ | |
| 1778 @seealso{crash_dumps_octave_core, octave_core_file_name, octave_core_file_options}\n\ | |
| 1779 @end deftypefn") | |
| 3709 | 1780 { |
| 5794 | 1781 return SET_INTERNAL_VARIABLE (octave_core_file_limit); |
| 3709 | 1782 } |
| 1783 | |
| 5794 | 1784 DEFUN (octave_core_file_name, args, nargout, |
| 1785 "-*- texinfo -*-\n\ | |
| 1786 @deftypefn {Built-in Function} {@var{val} =} octave_core_file_name ()\n\ | |
| 1787 @deftypefnx {Built-in Function} {@var{old_val} =} octave_core_file_name (@var{new_val})\n\ | |
| 1788 Query or set the internal variable that specifies the name of the file\n\ | |
| 1789 used for saving data from the top-level workspace if Octave aborts.\n\ | |
| 1790 The default value is @code{\"octave-core\"}\n\ | |
| 1791 @seealso{crash_dumps_octave_core, octave_core_file_name, octave_core_file_options}\n\ | |
| 1792 @end deftypefn") | |
| 2194 | 1793 { |
| 5794 | 1794 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (octave_core_file_name); |
| 1795 } | |
| 4791 | 1796 |
| 5794 | 1797 DEFUN (octave_core_file_options, args, nargout, |
| 1798 "-*- texinfo -*-\n\ | |
| 1799 @deftypefn {Built-in Function} {@var{val} =} octave_core_file_options ()\n\ | |
| 1800 @deftypefnx {Built-in Function} {@var{old_val} =} octave_core_file_options (@var{new_val})\n\ | |
| 1801 Query or set the internal variable that specifies the options used for\n\ | |
| 1802 saving the workspace data if Octave aborts. The value of\n\ | |
| 1803 @code{octave_core_file_options} should follow the same format as the\n\ | |
| 1804 options for the @code{save} function. The default value is Octave's binary\n\ | |
| 5284 | 1805 format.\n\ |
| 5642 | 1806 @seealso{crash_dumps_octave_core, octave_core_file_name, octave_core_file_limit}\n\ |
| 5794 | 1807 @end deftypefn") |
| 1808 { | |
| 1809 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (octave_core_file_options); | |
| 1810 } | |
| 2194 | 1811 |
| 5794 | 1812 DEFUN (save_header_format_string, args, nargout, |
| 1813 "-*- texinfo -*-\n\ | |
| 1814 @deftypefn {Built-in Function} {@var{val} =} save_header_format_string ()\n\ | |
| 1815 @deftypefnx {Built-in Function} {@var{old_val} =} save_header_format_string (@var{new_val})\n\ | |
| 1816 Query or set the internal variable that specifies the format\n\ | |
| 1817 string used for the comment line written at the beginning of\n\ | |
| 1818 text-format data files saved by Octave. The format string is\n\ | |
| 1819 passed to @code{strftime} and should begin with the character\n\ | |
| 1820 @samp{#} and contain no newline characters. If the value of\n\ | |
| 1821 @code{save_header_format_string} is the empty string,\n\ | |
| 3709 | 1822 the header comment is omitted from text-format data files. The\n\ |
| 1823 default value is\n\ | |
| 1824 \n\ | |
| 7031 | 1825 @smallexample\n\ |
| 4060 | 1826 \"# Created by Octave VERSION, %a %b %d %H:%M:%S %Y %Z <USER@@HOST>\"\n\ |
| 7031 | 1827 @end smallexample\n\ |
| 3709 | 1828 @seealso{strftime}\n\ |
| 5794 | 1829 @end deftypefn") |
| 1830 { | |
| 1831 return SET_INTERNAL_VARIABLE (save_header_format_string); | |
| 2194 | 1832 } |
| 1833 | |
| 604 | 1834 /* |
| 1835 ;;; Local Variables: *** | |
| 1836 ;;; mode: C++ *** | |
| 1837 ;;; End: *** | |
| 1838 */ |