Mercurial > octave
annotate libinterp/corefcn/load-save.cc @ 21118:3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
* daspk.cc, dasrt.cc, dassl.cc, data.cc, debug.cc, load-save.cc, lsode.cc,
quad.cc, xnorm.cc, xpow.cc, ov-base-diag.cc, ov-base-mat.cc, ov-base-scalar.cc,
ov-base.cc, ov-bool-mat.cc, ov-bool-sparse.cc, ov-cell.cc, ov-ch-mat.cc,
ov-class.cc, ov-cx-mat.cc, ov-cx-sparse.cc, ov-float.cc, ov-flt-cx-mat.cc,
ov-flt-re-mat.cc, ov-intx.h, ov-perm.cc, ov-range.cc, ov-re-mat.cc,
ov-re-sparse.cc, ov-scalar.cc, ov-struct.cc, ov.cc, pt-idx.cc, Array-util.cc,
Array.cc, Sparse.cc, lo-specfun.cc, mx-inlines.cc, oct-binmap.h:
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
author | Rik <rik@octave.org> |
---|---|
date | Wed, 20 Jan 2016 16:08:30 -0800 |
parents | bd1752782e56 |
children | fcac5dbbf9ed |
rev | line source |
---|---|
6763 | 1 /* |
604 | 2 |
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3 Copyright (C) 1994-2015 John W. Eaton |
604 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
604 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
604 | 20 |
21 */ | |
22 | |
3911 | 23 // Author: John W. Eaton. |
24 // HDF5 support by Steven G. Johnson <stevenj@alum.mit.edu> | |
25 // Matlab v5 support by James R. Van Zandt <jrv@vanzandt.mv.com> | |
3687 | 26 |
604 | 27 #ifdef HAVE_CONFIG_H |
1192 | 28 #include <config.h> |
604 | 29 #endif |
30 | |
1343 | 31 #include <cfloat> |
32 #include <cstring> | |
33 #include <cctype> | |
34 | |
4249 | 35 #include <fstream> |
3503 | 36 #include <iomanip> |
37 #include <iostream> | |
5765 | 38 #include <sstream> |
1728 | 39 #include <string> |
40 | |
9946 | 41 #include "strftime.h" |
42 | |
1961 | 43 #include "byte-swap.h" |
44 #include "data-conv.h" | |
2926 | 45 #include "file-ops.h" |
6159 | 46 #include "file-stat.h" |
2926 | 47 #include "glob-match.h" |
2890 | 48 #include "lo-mappers.h" |
2318 | 49 #include "mach-info.h" |
3185 | 50 #include "oct-env.h" |
3258 | 51 #include "oct-time.h" |
4171 | 52 #include "quit.h" |
1755 | 53 #include "str-vec.h" |
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54 #include "oct-locbuf.h" |
1755 | 55 |
4332 | 56 #include "Cell.h" |
1352 | 57 #include "defun.h" |
604 | 58 #include "error.h" |
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59 #include "errwarn.h" |
6159 | 60 #include "load-path.h" |
1352 | 61 #include "load-save.h" |
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62 #include "oct-hdf5.h" |
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63 #include "ovl.h" |
3687 | 64 #include "oct-map.h" |
4332 | 65 #include "ov-cell.h" |
1352 | 66 #include "pager.h" |
1750 | 67 #include "pt-exp.h" |
1352 | 68 #include "symtab.h" |
69 #include "sysdep.h" | |
70 #include "unwind-prot.h" | |
604 | 71 #include "utils.h" |
2371 | 72 #include "variables.h" |
3185 | 73 #include "version.h" |
3688 | 74 #include "dMatrix.h" |
75 | |
4633 | 76 #include "ls-hdf5.h" |
77 #include "ls-mat-ascii.h" | |
78 #include "ls-mat4.h" | |
79 #include "ls-mat5.h" | |
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80 #include "ls-oct-text.h" |
4633 | 81 #include "ls-oct-binary.h" |
3688 | 82 |
10309 | 83 // Remove gnulib definitions, if any. |
84 #ifdef close | |
85 #undef close | |
86 #endif | |
87 #ifdef open | |
88 #undef open | |
5269 | 89 #endif |
90 | |
10309 | 91 #ifdef HAVE_ZLIB |
92 #include "zfstream.h" | |
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93 #endif |
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94 |
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95 // Write octave-workspace file if Octave crashes or is killed by a signal. |
5794 | 96 static bool Vcrash_dumps_octave_core = true; |
3189 | 97 |
4791 | 98 // The maximum amount of memory (in kilobytes) that we will attempt to |
99 // write to the Octave core file. | |
5794 | 100 static double Voctave_core_file_limit = -1.0; |
4791 | 101 |
102 // The name of the Octave core file. | |
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103 static std::string Voctave_core_file_name = "octave-workspace"; |
4791 | 104 |
3687 | 105 // The default output format. May be one of "binary", "text", |
106 // "mat-binary", or "hdf5". | |
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107 static std::string Vsave_default_options = "-text"; |
2194 | 108 |
5284 | 109 // The output format for Octave core files. |
5794 | 110 static std::string Voctave_core_file_options = "-binary"; |
111 | |
112 static std::string | |
113 default_save_header_format (void) | |
114 { | |
115 return | |
116 std::string ("# Created by Octave " OCTAVE_VERSION | |
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117 ", %a %b %d %H:%M:%S %Y %Z <") |
5794 | 118 + octave_env::get_user_name () |
119 + std::string ("@") | |
120 + octave_env::get_host_name () | |
121 + std::string (">"); | |
122 } | |
4788 | 123 |
3709 | 124 // The format string for the comment line at the top of text-format |
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125 // save files. Passed to strftime. Should begin with '#' and contain |
3709 | 126 // no newline characters. |
5794 | 127 static std::string Vsave_header_format_string = default_save_header_format (); |
3709 | 128 |
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129 OCTAVE_NORETURN static |
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130 void |
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131 err_file_open (const std::string& fcn, const std::string& file) |
5369 | 132 { |
133 if (fcn == "load") | |
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134 error ("%s: unable to open input file '%s'", fcn.c_str (), file.c_str ()); |
5369 | 135 else if (fcn == "save") |
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136 error ("%s: unable to open output file '%s'", fcn.c_str (), file.c_str ()); |
5369 | 137 else |
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138 error ("%s: unable to open file '%s'", fcn.c_str (), file.c_str ()); |
5369 | 139 } |
140 | |
7336 | 141 // Install a variable with name NAME and the value VAL in the |
142 // symbol table. If GLOBAL is TRUE, make the variable global. | |
604 | 143 |
144 static void | |
7336 | 145 install_loaded_variable (const std::string& name, |
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146 const octave_value& val, |
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147 bool global, const std::string& /*doc*/) |
604 | 148 { |
149 if (global) | |
150 { | |
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151 symbol_table::clear (name); |
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152 symbol_table::mark_global (name); |
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153 symbol_table::global_assign (name, val); |
604 | 154 } |
155 else | |
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156 symbol_table::assign (name, val); |
604 | 157 } |
158 | |
3019 | 159 // Return TRUE if NAME matches one of the given globbing PATTERNS. |
604 | 160 |
3013 | 161 static bool |
3769 | 162 matches_patterns (const string_vector& patterns, int pat_idx, |
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163 int num_pat, const std::string& name) |
604 | 164 { |
1755 | 165 for (int i = pat_idx; i < num_pat; i++) |
604 | 166 { |
1792 | 167 glob_match pattern (patterns[i]); |
3013 | 168 |
1792 | 169 if (pattern.match (name)) |
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170 return true; |
604 | 171 } |
3688 | 172 |
3013 | 173 return false; |
604 | 174 } |
175 | |
4329 | 176 int |
3523 | 177 read_binary_file_header (std::istream& is, bool& swap, |
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178 oct_mach_info::float_format& flt_fmt, bool quiet) |
604 | 179 { |
3552 | 180 const int magic_len = 10; |
181 char magic[magic_len+1]; | |
5760 | 182 is.read (magic, magic_len); |
604 | 183 magic[magic_len] = '\0'; |
3688 | 184 |
604 | 185 if (strncmp (magic, "Octave-1-L", magic_len) == 0) |
2318 | 186 swap = oct_mach_info::words_big_endian (); |
604 | 187 else if (strncmp (magic, "Octave-1-B", magic_len) == 0) |
2318 | 188 swap = ! oct_mach_info::words_big_endian (); |
604 | 189 else |
190 { | |
191 if (! quiet) | |
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192 error ("load: unable to read read binary file"); |
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193 |
604 | 194 return -1; |
195 } | |
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196 |
604 | 197 char tmp = 0; |
5760 | 198 is.read (&tmp, 1); |
604 | 199 |
2318 | 200 flt_fmt = mopt_digit_to_float_format (tmp); |
201 | |
4574 | 202 if (flt_fmt == oct_mach_info::flt_fmt_unknown) |
604 | 203 { |
204 if (! quiet) | |
205 error ("load: unrecognized binary format!"); | |
3688 | 206 |
604 | 207 return -1; |
208 } | |
209 | |
210 return 0; | |
211 } | |
212 | |
5269 | 213 #ifdef HAVE_ZLIB |
214 static bool | |
215 check_gzip_magic (const std::string& fname) | |
216 { | |
217 bool retval = false; | |
218 std::ifstream file (fname.c_str ()); | |
219 OCTAVE_LOCAL_BUFFER (unsigned char, magic, 2); | |
220 | |
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221 if (file.read (reinterpret_cast<char *> (magic), 2) && magic[0] == 0x1f |
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222 && magic[1] == 0x8b) |
5269 | 223 retval = true; |
224 | |
225 file.close (); | |
226 return retval; | |
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227 } |
5269 | 228 #endif |
229 | |
604 | 230 static load_save_format |
6625 | 231 get_file_format (std::istream& file, const std::string& filename) |
604 | 232 { |
233 load_save_format retval = LS_UNKNOWN; | |
234 | |
4574 | 235 oct_mach_info::float_format flt_fmt = oct_mach_info::flt_fmt_unknown; |
604 | 236 |
3019 | 237 bool swap = false; |
238 | |
239 if (read_binary_file_header (file, swap, flt_fmt, true) == 0) | |
604 | 240 retval = LS_BINARY; |
241 else | |
242 { | |
6202 | 243 file.clear (); |
3538 | 244 file.seekg (0, std::ios::beg); |
604 | 245 |
5828 | 246 int32_t mopt, nr, nc, imag, len; |
1180 | 247 |
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248 int err = read_mat_file_header (file, swap, mopt, nr, nc, imag, len, |
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249 true); |
1180 | 250 |
251 if (! err) | |
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252 retval = LS_MAT_BINARY; |
604 | 253 else |
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254 { |
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255 file.clear (); |
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256 file.seekg (0, std::ios::beg); |
604 | 257 |
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258 err = read_mat5_binary_file_header (file, swap, true, filename); |
3688 | 259 |
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260 if (! err) |
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261 { |
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262 file.clear (); |
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263 file.seekg (0, std::ios::beg); |
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264 retval = LS_MAT5_BINARY; |
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265 } |
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266 else |
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267 { |
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268 file.clear (); |
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269 file.seekg (0, std::ios::beg); |
3688 | 270 |
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271 std::string name_val = extract_keyword (file, "name"); |
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272 std::string type_val = extract_keyword (file, "type"); |
4171 | 273 |
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274 if (name_val.empty () != true && type_val.empty () != true) |
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275 retval = LS_TEXT; |
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276 else |
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277 { |
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278 file.clear (); |
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279 file.seekg (0, std::ios::beg); |
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280 |
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281 // FIXME: looks_like_mat_ascii_file does not check to see |
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282 // whether the file contains numbers. It just skips comments |
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283 // and checks for the same number of words on each line. We |
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284 // may need a better check here. The best way to do that |
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285 // might be just to try to read the file and see if it works. |
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286 |
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287 if (looks_like_mat_ascii_file (file, filename)) |
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288 retval = LS_MAT_ASCII; |
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289 } |
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290 } |
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291 } |
604 | 292 } |
293 | |
5269 | 294 return retval; |
295 } | |
5977 | 296 |
5269 | 297 static load_save_format |
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298 get_file_format (const std::string& fname, const std::string& orig_fname, |
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299 bool &use_zlib, bool quiet = false) |
5269 | 300 { |
301 load_save_format retval = LS_UNKNOWN; | |
302 | |
303 #ifdef HAVE_HDF5 | |
304 // check this before we open the file | |
305 if (H5Fis_hdf5 (fname.c_str ()) > 0) | |
306 return LS_HDF5; | |
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307 #endif |
604 | 308 |
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309 #ifdef HAVE_ZLIB |
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310 use_zlib = check_gzip_magic (fname); |
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311 #else |
5269 | 312 use_zlib = false; |
5977 | 313 #endif |
5269 | 314 |
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315 if (! use_zlib) |
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316 { |
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317 std::ifstream file (fname.c_str ()); |
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318 if (file) |
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319 { |
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320 retval = get_file_format (file, orig_fname); |
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321 file.close (); |
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322 } |
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323 else if (! quiet) |
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324 err_file_open ("load", orig_fname); |
5269 | 325 } |
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326 #ifdef HAVE_ZLIB |
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327 else |
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328 { |
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329 gzifstream gzfile (fname.c_str ()); |
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330 if (gzfile) |
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331 { |
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332 retval = get_file_format (gzfile, orig_fname); |
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333 gzfile.close (); |
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334 } |
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335 else if (! quiet) |
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336 err_file_open ("load", orig_fname); |
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337 } |
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338 #endif |
604 | 339 |
340 return retval; | |
341 } | |
342 | |
4329 | 343 octave_value |
7336 | 344 do_load (std::istream& stream, const std::string& orig_fname, |
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345 load_save_format format, oct_mach_info::float_format flt_fmt, |
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346 bool list_only, bool swap, bool verbose, |
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347 const string_vector& argv, int argv_idx, int argc, int nargout) |
604 | 348 { |
3727 | 349 octave_value retval; |
350 | |
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351 octave_scalar_map retstruct; |
604 | 352 |
5765 | 353 std::ostringstream output_buf; |
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354 std::list<std::string> symbol_names; |
4051 | 355 |
5754 | 356 octave_idx_type count = 0; |
4051 | 357 |
604 | 358 for (;;) |
359 { | |
3019 | 360 bool global = false; |
2086 | 361 octave_value tc; |
604 | 362 |
4171 | 363 std::string name; |
364 std::string doc; | |
604 | 365 |
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366 switch (format.type) |
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367 { |
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368 case LS_TEXT: |
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369 name = read_text_data (stream, orig_fname, global, tc, count); |
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370 break; |
604 | 371 |
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372 case LS_BINARY: |
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373 name = read_binary_data (stream, swap, flt_fmt, orig_fname, |
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374 global, tc, doc); |
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375 break; |
604 | 376 |
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377 case LS_MAT_ASCII: |
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378 name = read_mat_ascii_data (stream, orig_fname, tc); |
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379 break; |
2511 | 380 |
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381 case LS_MAT_BINARY: |
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382 name = read_mat_binary_data (stream, orig_fname, tc); |
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383 break; |
604 | 384 |
3687 | 385 #ifdef HAVE_HDF5 |
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386 case LS_HDF5: |
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387 name = read_hdf5_data (stream, orig_fname, global, tc, doc, |
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388 argv, argv_idx, argc); |
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389 break; |
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390 #endif |
3687 | 391 |
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392 case LS_MAT5_BINARY: |
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393 case LS_MAT7_BINARY: |
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394 name = read_mat5_binary_element (stream, orig_fname, swap, |
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395 global, tc); |
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396 break; |
3688 | 397 |
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398 default: |
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399 err_unrecognized_data_fmt ("load"); |
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400 break; |
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401 } |
604 | 402 |
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403 if (stream.eof () || name.empty ()) |
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404 break; |
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405 else |
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406 { |
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407 if (! tc.is_defined ()) |
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408 error ("load: unable to load variable '%s'", name.c_str ()); |
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409 |
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410 if (format == LS_MAT_ASCII && argv_idx < argc) |
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411 warning ("load: loaded ASCII file '%s' -- ignoring extra args", |
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412 orig_fname.c_str ()); |
3136 | 413 |
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414 if (format == LS_MAT_ASCII |
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415 || argv_idx == argc |
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416 || matches_patterns (argv, argv_idx, argc, name)) |
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417 { |
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418 count++; |
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419 if (list_only) |
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420 { |
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421 if (verbose) |
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422 { |
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423 if (count == 1) |
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424 output_buf |
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425 << "type rows cols name\n" |
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426 << "==== ==== ==== ====\n"; |
621 | 427 |
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428 output_buf |
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429 << std::setiosflags (std::ios::left) |
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430 << std::setw (16) << tc.type_name () . c_str () |
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431 << std::setiosflags (std::ios::right) |
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432 << std::setw (7) << tc.rows () |
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433 << std::setw (7) << tc.columns () |
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434 << " " << name << "\n"; |
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435 } |
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436 else |
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437 symbol_names.push_back (name); |
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438 } |
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439 else |
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440 { |
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441 if (nargout == 1) |
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442 { |
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443 if (format == LS_MAT_ASCII) |
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444 retval = tc; |
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445 else |
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446 retstruct.assign (name, tc); |
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447 } |
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448 else |
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449 install_loaded_variable (name, tc, global, doc); |
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450 } |
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451 } |
2511 | 452 |
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453 // Only attempt to read one item from a headless text file. |
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454 |
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455 if (format == LS_MAT_ASCII) |
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456 break; |
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457 } |
604 | 458 } |
459 | |
621 | 460 if (list_only && count) |
461 { | |
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462 if (verbose) |
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463 { |
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464 std::string msg = output_buf.str (); |
2095 | 465 |
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466 if (nargout > 0) |
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467 retval = msg; |
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468 else |
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469 octave_stdout << msg; |
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470 } |
621 | 471 else |
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472 { |
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473 if (nargout > 0) |
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474 retval = Cell (string_vector (symbol_names)); |
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475 else |
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476 { |
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477 string_vector names (symbol_names); |
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478 |
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479 names.list_in_columns (octave_stdout); |
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480 |
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481 octave_stdout << "\n"; |
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482 } |
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483 } |
621 | 484 } |
6639 | 485 else if (retstruct.nfields () != 0) |
3727 | 486 retval = retstruct; |
621 | 487 |
863 | 488 return retval; |
489 } | |
490 | |
6159 | 491 std::string |
492 find_file_to_load (const std::string& name, const std::string& orig_name) | |
493 { | |
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494 std::string fname = find_data_file_in_load_path ("load", name, true); |
6159 | 495 |
6838 | 496 size_t dot_pos = fname.rfind ("."); |
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497 size_t sep_pos = fname.find_last_of (file_ops::dir_sep_chars ()); |
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498 |
8021 | 499 if (dot_pos == std::string::npos |
500 || (sep_pos != std::string::npos && dot_pos < sep_pos)) | |
6159 | 501 { |
6838 | 502 // Either no '.' in name or no '.' appears after last directory |
503 // separator. | |
504 | |
6159 | 505 file_stat fs (fname); |
506 | |
6584 | 507 if (! (fs.exists () && fs.is_reg ())) |
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508 fname = find_file_to_load (fname + ".mat", orig_name); |
6159 | 509 } |
510 else | |
511 { | |
512 file_stat fs (fname); | |
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513 |
6584 | 514 if (! (fs.exists () && fs.is_reg ())) |
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515 { |
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516 fname = ""; |
6159 | 517 |
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518 error ("load: unable to find file %s", orig_name.c_str ()); |
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519 } |
6159 | 520 } |
521 | |
522 return fname; | |
523 } | |
524 | |
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525 bool |
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526 is_octave_data_file (const std::string& fname) |
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527 { |
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528 bool use_zlib = false; |
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529 return get_file_format (fname, fname, use_zlib, true) != LS_UNKNOWN; |
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530 } |
6159 | 531 |
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532 DEFUN (load, args, nargout, |
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533 "-*- texinfo -*-\n\ |
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534 @deftypefn {} {} load file\n\ |
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535 @deftypefnx {} {} load options file\n\ |
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536 @deftypefnx {} {} load options file v1 v2 @dots{}\n\ |
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537 @deftypefnx {} {S =} load (\"options\", \"file\", \"v1\", \"v2\", @dots{})\n\ |
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538 @deftypefnx {} {} load file options\n\ |
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539 @deftypefnx {} {} load file options v1 v2 @dots{}\n\ |
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540 @deftypefnx {} {S =} load (\"file\", \"options\", \"v1\", \"v2\", @dots{})\n\ |
7247 | 541 Load the named variables @var{v1}, @var{v2}, @dots{}, from the file\n\ |
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542 @var{file}.\n\ |
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543 \n\ |
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544 If no variables are specified then all variables found in the\n\ |
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545 file will be loaded. As with @code{save}, the list of variables to extract\n\ |
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546 can be full names or use a pattern syntax. The format of the file is\n\ |
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547 automatically detected but may be overridden by supplying the appropriate\n\ |
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548 option.\n\ |
863 | 549 \n\ |
5665 | 550 If load is invoked using the functional form\n\ |
551 \n\ | |
552 @example\n\ | |
7247 | 553 load (\"-option1\", @dots{}, \"file\", \"v1\", @dots{})\n\ |
5665 | 554 @end example\n\ |
555 \n\ | |
556 @noindent\n\ | |
557 then the @var{options}, @var{file}, and variable name arguments\n\ | |
558 (@var{v1}, @dots{}) must be specified as character strings.\n\ | |
559 \n\ | |
3372 | 560 If a variable that is not marked as global is loaded from a file when a\n\ |
561 global symbol with the same name already exists, it is loaded in the\n\ | |
562 global symbol table. Also, if a variable is marked as global in a file\n\ | |
563 and a local symbol exists, the local symbol is moved to the global\n\ | |
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564 symbol table and given the value from the file.\n\ |
863 | 565 \n\ |
3727 | 566 If invoked with a single output argument, Octave returns data instead\n\ |
567 of inserting variables in the symbol table. If the data file contains\n\ | |
568 only numbers (TAB- or space-delimited columns), a matrix of values is\n\ | |
569 returned. Otherwise, @code{load} returns a structure with members\n\ | |
570 corresponding to the names of the variables in the file.\n\ | |
571 \n\ | |
3372 | 572 The @code{load} command can read data stored in Octave's text and\n\ |
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573 binary formats, and @sc{matlab}'s binary format. If compiled with zlib\n\ |
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574 support, it can also load gzip-compressed files. It will automatically\n\ |
3372 | 575 detect the type of file and do conversion from different floating point\n\ |
576 formats (currently only IEEE big and little endian, though other formats\n\ | |
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577 may be added in the future).\n\ |
3372 | 578 \n\ |
579 Valid options for @code{load} are listed in the following table.\n\ | |
863 | 580 \n\ |
3372 | 581 @table @code\n\ |
582 @item -force\n\ | |
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583 This option is accepted for backward compatibility but is ignored.\n\ |
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584 Octave now overwrites variables currently in memory with\n\ |
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585 those of the same name found in the file.\n\ |
3372 | 586 \n\ |
587 @item -ascii\n\ | |
5938 | 588 Force Octave to assume the file contains columns of numbers in text format\n\ |
589 without any header or other information. Data in the file will be loaded\n\ | |
590 as a single numeric matrix with the name of the variable derived from the\n\ | |
591 name of the file.\n\ | |
5197 | 592 \n\ |
3372 | 593 @item -binary\n\ |
594 Force Octave to assume the file is in Octave's binary format.\n\ | |
595 \n\ | |
3687 | 596 @item -hdf5\n\ |
10840 | 597 Force Octave to assume the file is in @sc{hdf5} format.\n\ |
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598 (@sc{hdf5} is a free, portable binary format developed by the National\n\ |
3687 | 599 Center for Supercomputing Applications at the University of Illinois.)\n\ |
10840 | 600 Note that Octave can read @sc{hdf5} files not created by itself, but may\n\ |
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601 skip some datasets in formats that it cannot support. This format is\n\ |
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602 only available if Octave was built with a link to the @sc{hdf5} libraries.\n\ |
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603 \n\ |
3687 | 604 @item -import\n\ |
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605 This option is accepted for backward compatibility but is ignored.\n\ |
4884 | 606 Octave can now support multi-dimensional HDF data and automatically\n\ |
607 modifies variable names if they are invalid Octave identifiers.\n\ | |
3687 | 608 \n\ |
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609 @item -mat\n\ |
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610 @itemx -mat-binary\n\ |
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611 @itemx -6\n\ |
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612 @itemx -v6\n\ |
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613 @itemx -7\n\ |
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614 @itemx -v7\n\ |
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615 Force Octave to assume the file is in @sc{matlab}'s version 6 or 7 binary\n\ |
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616 format.\n\ |
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617 \n\ |
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618 @item -mat4-binary\n\ |
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619 @itemx -4\n\ |
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620 @itemx -v4\n\ |
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621 @itemx -V4\n\ |
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622 Force Octave to assume the file is in the binary format written by\n\ |
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623 @sc{matlab} version 4.\n\ |
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624 \n\ |
5198 | 625 @item -text\n\ |
5197 | 626 Force Octave to assume the file is in Octave's text format.\n\ |
3372 | 627 @end table\n\ |
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628 @seealso{save, dlmwrite, csvwrite, fwrite}\n\ |
11547 | 629 @end deftypefn") |
863 | 630 { |
2086 | 631 octave_value_list retval; |
863 | 632 |
1755 | 633 int argc = args.length () + 1; |
634 | |
1968 | 635 string_vector argv = args.make_argv ("load"); |
1755 | 636 |
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637 int i = 1; |
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638 std::string orig_fname = ""; |
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639 |
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640 // Function called with Matlab-style ["filename", options] syntax |
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641 if (argc > 1 && ! argv[1].empty () && argv[1].at (0) != '-') |
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642 { |
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643 orig_fname = argv[1]; |
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644 i++; |
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645 } |
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646 |
1358 | 647 // It isn't necessary to have the default load format stored in a |
648 // user preference variable since we can determine the type of file | |
649 // as we are reading. | |
863 | 650 |
651 load_save_format format = LS_UNKNOWN; | |
652 | |
3019 | 653 bool list_only = false; |
654 bool verbose = false; | |
863 | 655 |
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656 for (; i < argc; i++) |
863 | 657 { |
1755 | 658 if (argv[i] == "-force" || argv[i] == "-f") |
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659 { |
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660 // Silently ignore this |
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661 // warning ("load: -force ignored"); |
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662 } |
1755 | 663 else if (argv[i] == "-list" || argv[i] == "-l") |
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664 { |
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665 list_only = true; |
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666 } |
1755 | 667 else if (argv[i] == "-verbose" || argv[i] == "-v") |
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668 { |
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669 verbose = true; |
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670 } |
1755 | 671 else if (argv[i] == "-ascii" || argv[i] == "-a") |
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672 { |
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673 format = LS_MAT_ASCII; |
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674 } |
1755 | 675 else if (argv[i] == "-binary" || argv[i] == "-b") |
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676 { |
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677 format = LS_BINARY; |
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678 } |
5269 | 679 else if (argv[i] == "-mat-binary" || argv[i] == "-mat" || argv[i] == "-m" |
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680 || argv[i] == "-6" || argv[i] == "-v6") |
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681 { |
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682 format = LS_MAT5_BINARY; |
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683 } |
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684 else if (argv[i] == "-7" || argv[i] == "-v7") |
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685 { |
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686 format = LS_MAT7_BINARY; |
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687 } |
5256 | 688 else if (argv[i] == "-mat4-binary" || argv[i] == "-V4" |
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689 || argv[i] == "-v4" || argv[i] == "-4") |
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690 { |
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691 format = LS_MAT_BINARY; |
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692 } |
3687 | 693 else if (argv[i] == "-hdf5" || argv[i] == "-h") |
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694 { |
3687 | 695 #ifdef HAVE_HDF5 |
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696 format = LS_HDF5; |
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697 #else |
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698 err_disabled_feature ("load", "HDF5"); |
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699 #endif |
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700 } |
3687 | 701 else if (argv[i] == "-import" || argv[i] == "-i") |
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702 { |
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703 warning ("load: -import ignored"); |
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704 } |
5197 | 705 else if (argv[i] == "-text" || argv[i] == "-t") |
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706 { |
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707 format = LS_TEXT; |
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708 } |
863 | 709 else |
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710 break; |
863 | 711 } |
712 | |
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713 if (orig_fname == "") |
863 | 714 { |
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715 if (i == argc) |
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716 print_usage (); |
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717 |
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718 orig_fname = argv[i]; |
863 | 719 } |
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720 else |
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721 i--; |
863 | 722 |
4574 | 723 oct_mach_info::float_format flt_fmt = oct_mach_info::flt_fmt_unknown; |
863 | 724 |
3019 | 725 bool swap = false; |
863 | 726 |
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727 if (orig_fname == "-") |
863 | 728 { |
1755 | 729 i++; |
863 | 730 |
3687 | 731 #ifdef HAVE_HDF5 |
732 if (format == LS_HDF5) | |
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733 error ("load: cannot read HDF5 format from stdin"); |
3687 | 734 else |
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735 #endif |
863 | 736 if (format != LS_UNKNOWN) |
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737 { |
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738 // FIXME: if we have already seen EOF on a previous call, |
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739 // how do we fix up the state of std::cin so that we can get |
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740 // additional input? I'm afraid that we can't fix this |
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741 // using std::cin only. |
3531 | 742 |
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743 retval = do_load (std::cin, orig_fname, format, flt_fmt, |
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744 list_only, swap, verbose, argv, i, argc, |
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745 nargout); |
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746 } |
863 | 747 else |
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748 error ("load: must specify file format if reading from stdin"); |
863 | 749 } |
750 else | |
751 { | |
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752 std::string fname = file_ops::tilde_expand (orig_fname); |
6159 | 753 |
754 fname = find_file_to_load (fname, orig_fname); | |
863 | 755 |
6159 | 756 bool use_zlib = false; |
5089 | 757 |
863 | 758 if (format == LS_UNKNOWN) |
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759 format = get_file_format (fname, orig_fname, use_zlib); |
863 | 760 |
3687 | 761 #ifdef HAVE_HDF5 |
762 if (format == LS_HDF5) | |
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763 { |
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764 i++; |
3687 | 765 |
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766 hdf5_ifstream hdf5_file (fname.c_str ()); |
3687 | 767 |
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768 if (hdf5_file.file_id < 0) |
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769 err_file_open ("load", orig_fname); |
4844 | 770 |
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771 retval = do_load (hdf5_file, orig_fname, format, |
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772 flt_fmt, list_only, swap, verbose, |
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773 argv, i, argc, nargout); |
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774 |
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775 hdf5_file.close (); |
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776 } |
3687 | 777 else |
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778 #endif |
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779 // don't insert any statements here; the "else" above has to |
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780 // go with the "if" below!!!!! |
863 | 781 if (format != LS_UNKNOWN) |
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782 { |
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783 i++; |
863 | 784 |
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785 // Always open in binary mode and handle various |
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786 // line-endings explicitly. |
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787 std::ios::openmode mode = std::ios::in | std::ios::binary; |
863 | 788 |
5269 | 789 #ifdef HAVE_ZLIB |
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790 if (use_zlib) |
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791 { |
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792 gzifstream file (fname.c_str (), mode); |
863 | 793 |
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794 if (! file) |
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795 err_file_open ("load", orig_fname); |
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796 |
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797 if (format == LS_BINARY) |
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798 { |
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799 if (read_binary_file_header (file, swap, flt_fmt) < 0) |
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800 { |
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801 if (file) file.close (); |
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802 return retval; |
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803 } |
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804 } |
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805 else if (format == LS_MAT5_BINARY |
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806 || format == LS_MAT7_BINARY) |
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807 { |
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808 if (read_mat5_binary_file_header (file, swap, false, |
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Rik <rik@octave.org>
parents:
21109
diff
changeset
|
809 orig_fname) < 0) |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
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diff
changeset
|
810 { |
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Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
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diff
changeset
|
811 if (file) file.close (); |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
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|
812 return retval; |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
813 } |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
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parents:
21109
diff
changeset
|
814 } |
5269 | 815 |
21118
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
816 retval = do_load (file, orig_fname, format, |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
817 flt_fmt, list_only, swap, verbose, |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
818 argv, i, argc, nargout); |
5269 | 819 |
21118
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
820 file.close (); |
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|
821 } |
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|
822 else |
5269 | 823 #endif |
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|
824 { |
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changeset
|
825 std::ifstream file (fname.c_str (), mode); |
5269 | 826 |
20962
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
827 if (! file) |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14268
diff
changeset
|
828 error ("load: unable to open input file '%s'", |
10315
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|
829 orig_fname.c_str ()); |
20962
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
830 |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
831 if (format == LS_BINARY) |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
832 { |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
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parents:
20956
diff
changeset
|
833 if (read_binary_file_header (file, swap, flt_fmt) < 0) |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
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parents:
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diff
changeset
|
834 { |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
835 if (file) file.close (); |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
836 return retval; |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
837 } |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
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parents:
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diff
changeset
|
838 } |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
839 else if (format == LS_MAT5_BINARY |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
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diff
changeset
|
840 || format == LS_MAT7_BINARY) |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
841 { |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
842 if (read_mat5_binary_file_header (file, swap, false, |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
843 orig_fname) < 0) |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
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parents:
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diff
changeset
|
844 { |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
845 if (file) file.close (); |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
846 return retval; |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
847 } |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
848 } |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
849 |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
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parents:
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diff
changeset
|
850 retval = do_load (file, orig_fname, format, |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
851 flt_fmt, list_only, swap, verbose, |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
20956
diff
changeset
|
852 argv, i, argc, nargout); |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
853 |
3aa293be0e8d
maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents:
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diff
changeset
|
854 file.close (); |
10315
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diff
changeset
|
855 } |
57a59eae83cc
untabify src C++ source files
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changeset
|
856 } |
19387
616f2b22787b
Issue error if load file format cannot be determined (bug #43575).
Rik <rik@octave.org>
parents:
18853
diff
changeset
|
857 else |
20956
850e3d2533d4
maint: Eliminate more useless statements after error().
Rik <rik@octave.org>
parents:
20945
diff
changeset
|
858 error ("load: unable to determine file format of '%s'", |
850e3d2533d4
maint: Eliminate more useless statements after error().
Rik <rik@octave.org>
parents:
20945
diff
changeset
|
859 orig_fname.c_str ()); |
850e3d2533d4
maint: Eliminate more useless statements after error().
Rik <rik@octave.org>
parents:
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diff
changeset
|
860 |
863 | 861 } |
11586
12df7854fa7c
strip trailing whitespace from source files
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parents:
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diff
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|
862 |
604 | 863 return retval; |
864 } | |
865 | |
3019 | 866 // Return TRUE if PATTERN has any special globbing chars in it. |
867 | |
868 static bool | |
3523 | 869 glob_pattern_p (const std::string& pattern) |
604 | 870 { |
871 int open = 0; | |
872 | |
1755 | 873 int len = pattern.length (); |
874 | |
875 for (int i = 0; i < len; i++) | |
604 | 876 { |
1755 | 877 char c = pattern[i]; |
878 | |
604 | 879 switch (c) |
10315
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|
880 { |
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|
881 case '?': |
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|
882 case '*': |
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|
883 return true; |
604 | 884 |
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|
885 case '[': // Only accept an open brace if there is a close |
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|
886 open++; // brace to match it. Bracket expressions must be |
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|
887 continue; // complete, according to Posix.2 |
604 | 888 |
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changeset
|
889 case ']': |
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diff
changeset
|
890 if (open) |
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|
891 return true; |
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|
892 continue; |
4402 | 893 |
10315
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|
894 case '\\': |
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|
895 if (i == len - 1) |
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|
896 return false; |
604 | 897 |
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|
898 default: |
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|
899 continue; |
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|
900 } |
604 | 901 } |
902 | |
3019 | 903 return false; |
604 | 904 } |
905 | |
4791 | 906 static void |
907 do_save (std::ostream& os, const octave_value& tc, | |
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908 const std::string& name, const std::string& help, |
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909 bool global, load_save_format fmt, bool save_as_floats) |
604 | 910 { |
8425
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support -tabs option for save -ascii
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diff
changeset
|
911 switch (fmt.type) |
604 | 912 { |
20447
c6224b4e7774
maint: Rename instances of LS_ASCII to LS_TEXT for clarity.
Rik <rik@octave.org>
parents:
20443
diff
changeset
|
913 case LS_TEXT: |
c6224b4e7774
maint: Rename instances of LS_ASCII to LS_TEXT for clarity.
Rik <rik@octave.org>
parents:
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changeset
|
914 save_text_data (os, tc, name, global, 0); |
604 | 915 break; |
916 | |
917 case LS_BINARY: | |
630 | 918 save_binary_data (os, tc, name, help, global, save_as_floats); |
604 | 919 break; |
920 | |
5938 | 921 case LS_MAT_ASCII: |
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|
922 if (! save_mat_ascii_data (os, tc, fmt.opts & LS_MAT_ASCII_LONG ? 16 : 8, |
8425
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Jaroslav Hajek <highegg@gmail.com>
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diff
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|
923 fmt.opts & LS_MAT_ASCII_TABS)) |
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|
924 warning ("save: unable to save %s in ASCII format", name.c_str ()); |
5938 | 925 break; |
926 | |
667 | 927 case LS_MAT_BINARY: |
928 save_mat_binary_data (os, tc, name); | |
929 break; | |
930 | |
3687 | 931 #ifdef HAVE_HDF5 |
932 case LS_HDF5: | |
933 save_hdf5_data (os, tc, name, help, global, save_as_floats); | |
934 break; | |
20945
9d9270e2f98f
eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents:
20940
diff
changeset
|
935 #endif |
3687 | 936 |
3688 | 937 case LS_MAT5_BINARY: |
5269 | 938 save_mat5_binary_element (os, tc, name, global, false, save_as_floats); |
939 break; | |
940 | |
941 case LS_MAT7_BINARY: | |
942 save_mat5_binary_element (os, tc, name, global, true, save_as_floats); | |
3688 | 943 break; |
944 | |
604 | 945 default: |
21100
e39e05d90788
Switch gripe_XXX to either err_XXX or warn_XXX naming scheme.
Rik <rik@octave.org>
parents:
21040
diff
changeset
|
946 err_unrecognized_data_fmt ("save"); |
604 | 947 break; |
948 } | |
949 } | |
950 | |
4791 | 951 // Save the info from SR on stream OS in the format specified by FMT. |
952 | |
953 void | |
7336 | 954 do_save (std::ostream& os, const symbol_table::symbol_record& sr, |
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|
955 load_save_format fmt, bool save_as_floats) |
4791 | 956 { |
7336 | 957 octave_value val = sr.varval (); |
4791 | 958 |
7336 | 959 if (val.is_defined ()) |
4791 | 960 { |
7336 | 961 std::string name = sr.name (); |
962 std::string help; | |
963 bool global = sr.is_global (); | |
4791 | 964 |
7336 | 965 do_save (os, val, name, help, global, fmt, save_as_floats); |
4791 | 966 } |
967 } | |
968 | |
7635
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diff
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|
969 // save fields of a scalar structure STR matching PATTERN on stream OS |
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add -struct modifier to save
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|
970 // in the format specified by FMT. |
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|
971 |
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|
972 static size_t |
11059
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|
973 save_fields (std::ostream& os, const octave_scalar_map& m, |
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974 const std::string& pattern, |
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975 load_save_format fmt, bool save_as_floats) |
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|
976 { |
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977 glob_match pat (pattern); |
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978 |
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979 size_t saved = 0; |
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|
980 |
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|
981 for (octave_scalar_map::const_iterator p = m.begin (); p != m.end (); p++) |
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|
982 { |
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983 std::string empty_str; |
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984 |
14861
f7afecdd87ef
maint: Use Octave coding conventions for cuddling parentheses in src/ directory
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changeset
|
985 if (pat.match (m.key (p))) |
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|
986 { |
11059
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Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
987 do_save (os, m.contents (p), m.key (p), empty_str, |
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|
988 0, fmt, save_as_floats); |
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|
989 |
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|
990 saved++; |
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|
991 } |
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|
992 } |
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993 |
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|
994 return saved; |
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|
995 } |
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|
996 |
604 | 997 // Save variables with names matching PATTERN on stream OS in the |
5794 | 998 // format specified by FMT. |
604 | 999 |
7336 | 1000 static size_t |
5794 | 1001 save_vars (std::ostream& os, const std::string& pattern, |
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1002 load_save_format fmt, bool save_as_floats) |
604 | 1003 { |
7336 | 1004 std::list<symbol_table::symbol_record> vars = symbol_table::glob (pattern); |
1005 | |
1006 size_t saved = 0; | |
3355 | 1007 |
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1008 typedef std::list<symbol_table::symbol_record>::const_iterator |
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1009 const_vars_iterator; |
3355 | 1010 |
7336 | 1011 for (const_vars_iterator p = vars.begin (); p != vars.end (); p++) |
620 | 1012 { |
7336 | 1013 do_save (os, *p, fmt, save_as_floats); |
620 | 1014 |
7336 | 1015 saved++; |
620 | 1016 } |
604 | 1017 |
1018 return saved; | |
1019 } | |
1020 | |
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1021 static string_vector |
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1022 parse_save_options (const string_vector &argv, |
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1023 load_save_format &format, bool &append, |
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1024 bool &save_as_floats, bool &use_zlib) |
604 | 1025 { |
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1026 string_vector retval; |
20232
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Carnë Draug <carandraug@octave.org>
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1027 int argc = argv.numel (); |
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1028 |
18100
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1029 bool do_double = false; |
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1030 bool do_tabs = false; |
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1031 |
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1032 for (int i = 0; i < argc; i++) |
5284 | 1033 { |
1034 if (argv[i] == "-append") | |
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1035 { |
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1036 append = true; |
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1037 } |
5284 | 1038 else if (argv[i] == "-ascii" || argv[i] == "-a") |
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1039 { |
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1040 format = LS_MAT_ASCII; |
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1041 } |
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1042 else if (argv[i] == "-double") |
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1043 { |
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1044 do_double = true; |
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1045 } |
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1046 else if (argv[i] == "-tabs") |
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1047 { |
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1048 do_tabs = true; |
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1049 } |
5284 | 1050 else if (argv[i] == "-text" || argv[i] == "-t") |
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1051 { |
20447
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1052 format = LS_TEXT; |
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1053 } |
5284 | 1054 else if (argv[i] == "-binary" || argv[i] == "-b") |
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1055 { |
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1056 format = LS_BINARY; |
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1057 } |
5284 | 1058 else if (argv[i] == "-hdf5" || argv[i] == "-h") |
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1059 { |
3687 | 1060 #ifdef HAVE_HDF5 |
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1061 format = LS_HDF5; |
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1062 #else |
21109
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1063 err_disabled_feature ("save", "HDF5"); |
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1064 #endif |
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1065 } |
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1066 else if (argv[i] == "-mat-binary" || argv[i] == "-mat" |
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1067 || argv[i] == "-m" || argv[i] == "-6" || argv[i] == "-v6" |
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1068 || argv[i] == "-V6") |
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1069 { |
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1070 format = LS_MAT5_BINARY; |
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1071 } |
5284 | 1072 #ifdef HAVE_ZLIB |
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1073 else if (argv[i] == "-mat7-binary" || argv[i] == "-7" |
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1074 || argv[i] == "-v7" || argv[i] == "-V7") |
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1075 { |
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1076 format = LS_MAT7_BINARY; |
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1077 } |
5284 | 1078 #endif |
1079 else if (argv[i] == "-mat4-binary" || argv[i] == "-V4" | |
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1080 || argv[i] == "-v4" || argv[i] == "-4") |
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1081 { |
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1082 format = LS_MAT_BINARY; |
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1083 } |
5284 | 1084 else if (argv[i] == "-float-binary" || argv[i] == "-f") |
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1085 { |
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1086 format = LS_BINARY; |
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1087 save_as_floats = true; |
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1088 } |
5284 | 1089 else if (argv[i] == "-float-hdf5") |
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1090 { |
5284 | 1091 #ifdef HAVE_HDF5 |
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1092 format = LS_HDF5; |
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1093 save_as_floats = true; |
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1094 #else |
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1095 err_disabled_feature ("save", "HDF5"); |
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1096 #endif |
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1097 } |
5284 | 1098 #ifdef HAVE_ZLIB |
1099 else if (argv[i] == "-zip" || argv[i] == "-z") | |
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1100 { |
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1101 use_zlib = true; |
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1102 } |
5284 | 1103 #endif |
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1104 else if (argv[i] == "-struct") |
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1105 { |
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1106 retval.append (argv[i]); |
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1107 } |
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1108 else if (argv[i][0] == '-' && argv[i] != "-") |
15567
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1109 { |
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1110 error ("save: Unrecognized option '%s'", argv[i].c_str ()); |
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1111 } |
5284 | 1112 else |
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1113 retval.append (argv[i]); |
5284 | 1114 } |
1115 | |
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1116 if (do_double) |
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1117 { |
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1118 if (format == LS_MAT_ASCII) |
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1119 format.opts |= LS_MAT_ASCII_LONG; |
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1120 else |
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1121 warning ("save: \"-double\" option only has an effect with \"-ascii\""); |
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1122 } |
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1123 |
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1124 if (do_tabs) |
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1125 { |
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1126 if (format == LS_MAT_ASCII) |
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1127 format.opts |= LS_MAT_ASCII_TABS; |
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1128 else |
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1129 warning ("save: \"-tabs\" option only has an effect with \"-ascii\""); |
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1130 } |
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1131 |
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1132 return retval; |
5284 | 1133 } |
1134 | |
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1135 static string_vector |
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1136 parse_save_options (const std::string &arg, load_save_format &format, |
20996 | 1137 bool &append, bool &save_as_floats, bool &use_zlib) |
5284 | 1138 { |
5765 | 1139 std::istringstream is (arg); |
5284 | 1140 std::string str; |
1141 string_vector argv; | |
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1142 |
5765 | 1143 while (! is.eof ()) |
5284 | 1144 { |
1145 is >> str; | |
1146 argv.append (str); | |
1147 } | |
1148 | |
20996 | 1149 return parse_save_options (argv, format, append, save_as_floats, use_zlib); |
604 | 1150 } |
1151 | |
4329 | 1152 void |
3523 | 1153 write_header (std::ostream& os, load_save_format format) |
863 | 1154 { |
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1155 switch (format.type) |
863 | 1156 { |
3185 | 1157 case LS_BINARY: |
1158 { | |
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1159 os << (oct_mach_info::words_big_endian () |
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1160 ? "Octave-1-B" : "Octave-1-L"); |
3185 | 1161 |
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1162 oct_mach_info::float_format flt_fmt = |
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1163 oct_mach_info::native_float_format (); |
3185 | 1164 |
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1165 char tmp = static_cast<char> (float_format_to_mopt_digit (flt_fmt)); |
3185 | 1166 |
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1167 os.write (&tmp, 1); |
3185 | 1168 } |
3688 | 1169 break; |
1170 | |
1171 case LS_MAT5_BINARY: | |
5269 | 1172 case LS_MAT7_BINARY: |
3688 | 1173 { |
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1174 char const * versionmagic; |
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1175 int16_t number = *(reinterpret_cast<const int16_t *>("\x00\x01")); |
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1176 char headertext[128]; |
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Mike Miller <mtmiller@octave.org>
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1177 octave_gmtime now; |
3688 | 1178 |
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1179 // ISO 8601 format date |
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1180 const char *matlab_format = "MATLAB 5.0 MAT-file, written by Octave " |
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1181 OCTAVE_VERSION ", %Y-%m-%d %T UTC"; |
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1182 std::string comment_string = now.strftime (matlab_format); |
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1183 |
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1184 size_t len = std::min (comment_string.length (), static_cast<size_t> (124)); |
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1185 memset (headertext, ' ', 124); |
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1186 memcpy (headertext, comment_string.data (), len); |
3688 | 1187 |
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1188 // The first pair of bytes give the version of the MAT file |
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1189 // format. The second pair of bytes form a magic number which |
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1190 // signals a MAT file. MAT file data are always written in |
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1191 // native byte order. The order of the bytes in the second |
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1192 // pair indicates whether the file was written by a big- or |
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1193 // little-endian machine. However, the version number is |
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1194 // written in the *opposite* byte order from everything else! |
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1195 if (number == 1) |
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1196 versionmagic = "\x01\x00\x4d\x49"; // this machine is big endian |
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1197 else |
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1198 versionmagic = "\x00\x01\x49\x4d"; // this machine is little endian |
3688 | 1199 |
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1200 memcpy (headertext+124, versionmagic, 4); |
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|
1201 os.write (headertext, 128); |
3688 | 1202 } |
1203 | |
1204 break; | |
3185 | 1205 |
3687 | 1206 #ifdef HAVE_HDF5 |
1207 case LS_HDF5: | |
20945
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eliminate comments after preprocessor conditionals
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diff
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|
1208 #endif |
20447
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maint: Rename instances of LS_ASCII to LS_TEXT for clarity.
Rik <rik@octave.org>
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diff
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|
1209 case LS_TEXT: |
3185 | 1210 { |
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|
1211 octave_localtime now; |
3709 | 1212 |
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|
1213 std::string comment_string = now.strftime (Vsave_header_format_string); |
3709 | 1214 |
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1215 if (! comment_string.empty ()) |
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|
1216 { |
3687 | 1217 #ifdef HAVE_HDF5 |
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|
1218 if (format == LS_HDF5) |
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|
1219 { |
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|
1220 hdf5_ofstream& hs = dynamic_cast<hdf5_ofstream&> (os); |
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untabify src C++ source files
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|
1221 H5Gset_comment (hs.file_id, "/", comment_string.c_str ()); |
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|
1222 } |
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|
1223 else |
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eliminate comments after preprocessor conditionals
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|
1224 #endif |
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1225 os << comment_string << "\n"; |
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|
1226 } |
3185 | 1227 } |
17787
175b392e91fe
Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
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diff
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|
1228 break; |
3185 | 1229 |
1230 default: | |
1231 break; | |
863 | 1232 } |
1233 } | |
1234 | |
17755
9c03b071fd7b
avoid HDF5 error message at exit (bug #37713)
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|
1235 void |
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avoid HDF5 error message at exit (bug #37713)
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|
1236 octave_prepare_hdf5 (void) |
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avoid HDF5 error message at exit (bug #37713)
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|
1237 { |
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avoid HDF5 error message at exit (bug #37713)
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|
1238 #ifdef HAVE_HDF5 |
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avoid HDF5 error message at exit (bug #37713)
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1239 H5dont_atexit (); |
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avoid HDF5 error message at exit (bug #37713)
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|
1240 #endif |
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1241 } |
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1242 |
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1243 void |
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1244 octave_finalize_hdf5 (void) |
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avoid HDF5 error message at exit (bug #37713)
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1245 { |
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|
1246 #ifdef HAVE_HDF5 |
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1247 H5close (); |
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avoid HDF5 error message at exit (bug #37713)
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|
1248 #endif |
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1249 } |
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1250 |
863 | 1251 static void |
3769 | 1252 save_vars (const string_vector& argv, int argv_idx, int argc, |
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1253 std::ostream& os, load_save_format fmt, |
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|
1254 bool save_as_floats, bool write_header_info) |
863 | 1255 { |
3185 | 1256 if (write_header_info) |
1257 write_header (os, fmt); | |
863 | 1258 |
1755 | 1259 if (argv_idx == argc) |
863 | 1260 { |
5794 | 1261 save_vars (os, "*", fmt, save_as_floats); |
863 | 1262 } |
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add -struct modifier to save
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|
1263 else if (argv[argv_idx] == "-struct") |
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1264 { |
11586
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diff
changeset
|
1265 if (++argv_idx >= argc) |
20831
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eliminate return statements after calls to error
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diff
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|
1266 error ("save: missing struct name"); |
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|
1267 |
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1268 std::string struct_name = argv[argv_idx]; |
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|
1269 |
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|
1270 if (! symbol_table::is_variable (struct_name)) |
20831
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|
1271 error ("save: no such variable: '%s'", struct_name.c_str ()); |
7635
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|
1272 |
16442
302157614308
deprecate symbol_table::varref functions
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diff
changeset
|
1273 octave_value struct_var = symbol_table::varval (struct_name); |
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1274 |
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1275 if (! struct_var.is_map () || struct_var.numel () != 1) |
20831
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1276 error ("save: '%s' is not a scalar structure", struct_name.c_str ()); |
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|
1277 |
11059
4ffa19147604
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Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1278 octave_scalar_map struct_var_map = struct_var.scalar_map_value (); |
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1279 |
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1280 ++argv_idx; |
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|
1281 |
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1282 if (argv_idx < argc) |
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1283 { |
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1284 for (int i = argv_idx; i < argc; i++) |
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1285 { |
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1286 if (! save_fields (os, struct_var_map, argv[i], fmt, |
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1287 save_as_floats)) |
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1288 { |
15466
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1289 warning ("save: no such field '%s.%s'", |
10315
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|
1290 struct_name.c_str (), argv[i].c_str ()); |
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1291 } |
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1292 } |
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|
1293 } |
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|
1294 else |
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1295 save_fields (os, struct_var_map, "*", fmt, save_as_floats); |
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1296 } |
863 | 1297 else |
1298 { | |
1755 | 1299 for (int i = argv_idx; i < argc; i++) |
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1300 { |
17349
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Don't warn about saving empty variable names for Matlab compatibility (bug #34259)
Rik <rik@octave.org>
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changeset
|
1301 if (argv[i] == "") |
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Don't warn about saving empty variable names for Matlab compatibility (bug #34259)
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|
1302 continue; // Skip empty vars for Matlab compatibility |
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1303 if (! save_vars (os, argv[i], fmt, save_as_floats)) |
15466
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|
1304 warning ("save: no such variable '%s'", argv[i].c_str ()); |
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1305 } |
863 | 1306 } |
1307 } | |
1308 | |
5284 | 1309 static void |
1310 dump_octave_core (std::ostream& os, const char *fname, load_save_format fmt, | |
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1311 bool save_as_floats) |
4791 | 1312 { |
1313 write_header (os, fmt); | |
1314 | |
7767
71f068b22fcc
scope and context fixes for function handles
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|
1315 std::list<symbol_table::symbol_record> vars |
71f068b22fcc
scope and context fixes for function handles
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|
1316 = symbol_table::all_variables (symbol_table::top_scope (), 0); |
4791 | 1317 |
1318 double save_mem_size = 0; | |
1319 | |
17787
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|
1320 typedef std::list<symbol_table::symbol_record>::const_iterator |
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|
1321 const_vars_iterator; |
7336 | 1322 |
1323 for (const_vars_iterator p = vars.begin (); p != vars.end (); p++) | |
4791 | 1324 { |
7336 | 1325 octave_value val = p->varval (); |
4791 | 1326 |
7336 | 1327 if (val.is_defined ()) |
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1328 { |
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1329 std::string name = p->name (); |
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1330 std::string help; |
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1331 bool global = p->is_global (); |
4791 | 1332 |
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1333 double val_size = val.byte_size () / 1024; |
4791 | 1334 |
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1335 // FIXME: maybe we should try to throw out the largest first... |
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1337 if (Voctave_core_file_limit < 0 |
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1338 || save_mem_size + val_size < Voctave_core_file_limit) |
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1339 { |
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1340 save_mem_size += val_size; |
4791 | 1341 |
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1342 do_save (os, val, name, help, global, fmt, save_as_floats); |
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1343 } |
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1344 } |
4791 | 1345 } |
1346 | |
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1347 message (0, "save to '%s' complete", fname); |
4791 | 1348 } |
1349 | |
1350 void | |
1351 dump_octave_core (void) | |
1380 | 1352 { |
3189 | 1353 if (Vcrash_dumps_octave_core) |
1380 | 1354 { |
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1355 // FIXME: should choose better filename? |
3189 | 1356 |
4791 | 1357 const char *fname = Voctave_core_file_name.c_str (); |
3189 | 1358 |
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1359 message (0, "attempting to save variables to '%s'...", fname); |
3189 | 1360 |
5284 | 1361 load_save_format format = LS_BINARY; |
1362 | |
1363 bool save_as_floats = false; | |
1364 | |
1365 bool append = false; | |
3189 | 1366 |
5284 | 1367 bool use_zlib = false; |
1368 | |
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1369 parse_save_options (Voctave_core_file_options, format, append, |
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1370 save_as_floats, use_zlib); |
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1371 |
5284 | 1372 std::ios::openmode mode = std::ios::out; |
4791 | 1373 |
6625 | 1374 // Matlab v7 files are always compressed |
1375 if (format == LS_MAT7_BINARY) | |
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1376 use_zlib = false; |
6625 | 1377 |
4791 | 1378 if (format == LS_BINARY |
1379 #ifdef HAVE_HDF5 | |
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1380 || format == LS_HDF5 |
4791 | 1381 #endif |
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1382 || format == LS_MAT_BINARY |
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1383 || format == LS_MAT5_BINARY |
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1384 || format == LS_MAT7_BINARY) |
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1385 mode |= std::ios::binary; |
3189 | 1386 |
5284 | 1387 mode |= append ? std::ios::ate : std::ios::trunc; |
1388 | |
3687 | 1389 #ifdef HAVE_HDF5 |
1390 if (format == LS_HDF5) | |
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1391 { |
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1392 hdf5_ofstream file (fname, mode); |
3687 | 1393 |
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1394 if (file.file_id >= 0) |
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1395 { |
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1396 dump_octave_core (file, fname, format, save_as_floats); |
3687 | 1397 |
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1398 file.close (); |
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1399 } |
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1400 else |
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Rik <rik@octave.org>
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1401 warning ("dump_octave_core: unable to open '%s' for writing...", |
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1402 fname); |
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1403 } |
3189 | 1404 else |
20945
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eliminate comments after preprocessor conditionals
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1405 #endif |
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1406 // don't insert any commands here! The open brace below must |
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1407 // go with the else above! |
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1408 { |
5284 | 1409 #ifdef HAVE_ZLIB |
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1410 if (use_zlib) |
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1411 { |
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1412 gzofstream file (fname, mode); |
4791 | 1413 |
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1414 if (file) |
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1415 { |
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1416 dump_octave_core (file, fname, format, save_as_floats); |
5284 | 1417 |
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1418 file.close (); |
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1419 } |
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1420 else |
20727
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Preface warning() messages with name of function when possible.
Rik <rik@octave.org>
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|
1421 warning ("dump_octave_core: unable to open '%s' for writing...", |
a5949b3d2332
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1422 fname); |
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1423 } |
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1424 else |
5284 | 1425 #endif |
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1426 { |
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1427 std::ofstream file (fname, mode); |
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1428 |
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1429 if (file) |
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1430 { |
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|
1431 dump_octave_core (file, fname, format, save_as_floats); |
5284 | 1432 |
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1433 file.close (); |
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1434 } |
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1435 else |
20727
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Rik <rik@octave.org>
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|
1436 warning ("dump_octave_core: unable to open '%s' for writing...", |
a5949b3d2332
Preface warning() messages with name of function when possible.
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|
1437 fname); |
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1438 } |
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1439 } |
1380 | 1440 } |
1441 } | |
1442 | |
19817
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if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
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|
1443 DEFUN (save, args, nargout, |
17787
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Use GNU style coding conventions for code in libinterp/
Rik <rik@octave.org>
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|
1444 "-*- texinfo -*-\n\ |
20853
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents:
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diff
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|
1445 @deftypefn {} {} save file\n\ |
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents:
20831
diff
changeset
|
1446 @deftypefnx {} {} save options file\n\ |
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents:
20831
diff
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|
1447 @deftypefnx {} {} save options file @var{v1} @var{v2} @dots{}\n\ |
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1448 @deftypefnx {} {} save options file -struct @var{STRUCT} @var{f1} @var{f2} @dots{}\n\ |
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
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20831
diff
changeset
|
1449 @deftypefnx {} {} save @code{\"-\"} @var{v1} @var{v2} @dots{}\n\ |
1142cf6abc0d
2015 Code Sprint: remove class of function from docstring for all C++ files.
Rik <rik@octave.org>
parents:
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diff
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|
1450 @deftypefnx {} {@var{s} =} save (@code{\"-\"} @var{v1} @var{v2} @dots{})\n\ |
7247 | 1451 Save the named variables @var{v1}, @var{v2}, @dots{}, in the file\n\ |
20172
4f45eaf83908
doc: Update more docstrings to have one sentence summary as first line.
Rik <rik@octave.org>
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19864
diff
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|
1452 @var{file}.\n\ |
4f45eaf83908
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Rik <rik@octave.org>
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|
1453 \n\ |
4f45eaf83908
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Rik <rik@octave.org>
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diff
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|
1454 The special filename @samp{-} may be used to return the\n\ |
19152
0f9c5a15c8fa
doc: Periodic grammarcheck of documentation.
Rik <rik@octave.org>
parents:
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diff
changeset
|
1455 content of the variables as a string. If no variable names are listed,\n\ |
0f9c5a15c8fa
doc: Periodic grammarcheck of documentation.
Rik <rik@octave.org>
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diff
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|
1456 Octave saves all the variables in the current scope. Otherwise, full\n\ |
0f9c5a15c8fa
doc: Periodic grammarcheck of documentation.
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diff
changeset
|
1457 variable names or pattern syntax can be used to specify the variables to\n\ |
0f9c5a15c8fa
doc: Periodic grammarcheck of documentation.
Rik <rik@octave.org>
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diff
changeset
|
1458 save. If the @option{-struct} modifier is used, fields @var{f1} @var{f2}\n\ |
0f9c5a15c8fa
doc: Periodic grammarcheck of documentation.
Rik <rik@octave.org>
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diff
changeset
|
1459 @dots{} of the scalar structure @var{STRUCT} are saved as if they were\n\ |
0f9c5a15c8fa
doc: Periodic grammarcheck of documentation.
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19030
diff
changeset
|
1460 variables with corresponding names. Valid options for the @code{save}\n\ |
0f9c5a15c8fa
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diff
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|
1461 command are listed in the following table. Options that modify the output\n\ |
0f9c5a15c8fa
doc: Periodic grammarcheck of documentation.
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diff
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|
1462 format override the format specified by @code{save_default_options}.\n\ |
3372 | 1463 \n\ |
5665 | 1464 If save is invoked using the functional form\n\ |
1465 \n\ | |
1466 @example\n\ | |
7247 | 1467 save (\"-option1\", @dots{}, \"file\", \"v1\", @dots{})\n\ |
5665 | 1468 @end example\n\ |
1469 \n\ | |
1470 @noindent\n\ | |
1471 then the @var{options}, @var{file}, and variable name arguments\n\ | |
7247 | 1472 (@var{v1}, @dots{}) must be specified as character strings.\n\ |
5665 | 1473 \n\ |
19817
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John W. Eaton <jwe@octave.org>
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|
1474 If called with a filename of @qcode{\"-\"}, write the output to stdout\n\ |
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1475 if nargout is 0, otherwise return the output in a character string.\n\ |
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1476 \n\ |
3372 | 1477 @table @code\n\ |
12661
9f91ca870f91
load-save.cc: Document -append option
Jordi Gutiérrez Hermoso <jordigh@gmail.com>
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diff
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|
1478 @item -append\n\ |
9f91ca870f91
load-save.cc: Document -append option
Jordi Gutiérrez Hermoso <jordigh@gmail.com>
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diff
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|
1479 Append to the destination instead of overwriting.\n\ |
13929
9cae456085c2
Grammarcheck of documentation before 3.6.0 release.
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1480 \n\ |
3372 | 1481 @item -ascii\n\ |
9306
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|
1482 Save a single matrix in a text file without header or any other information.\n\ |
5197 | 1483 \n\ |
3372 | 1484 @item -binary\n\ |
1485 Save the data in Octave's binary data format.\n\ | |
1486 \n\ | |
1487 @item -float-binary\n\ | |
1488 Save the data in Octave's binary data format but only using single\n\ | |
9306
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|
1489 precision. Only use this format if you know that all the\n\ |
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|
1490 values to be saved can be represented in single precision.\n\ |
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|
1491 \n\ |
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|
1492 @item -hdf5\n\ |
10840 | 1493 Save the data in @sc{hdf5} format.\n\ |
9306
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1494 (HDF5 is a free, portable binary format developed by the National\n\ |
12160
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|
1495 Center for Supercomputing Applications at the University of Illinois.)\n\ |
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|
1496 This format is only available if Octave was built with a link to the\n\ |
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|
1497 @sc{hdf5} libraries.\n\ |
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|
1498 \n\ |
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|
1499 @item -float-hdf5\n\ |
10840 | 1500 Save the data in @sc{hdf5} format but only using single precision.\n\ |
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|
1501 Only use this format if you know that all the\n\ |
3372 | 1502 values to be saved can be represented in single precision.\n\ |
1503 \n\ | |
17170
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|
1504 @item -V7\n\ |
5269 | 1505 @itemx -v7\n\ |
1506 @itemx -7\n\ | |
1507 @itemx -mat7-binary\n\ | |
12160
b64b82721062
Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
1508 Save the data in @sc{matlab}'s v7 binary data format.\n\ |
b64b82721062
Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
1509 \n\ |
17170
d6499c14021c
doc: Periodic grammarcheck of documentation.
Rik <rik@octave.org>
parents:
16892
diff
changeset
|
1510 @item -V6\n\ |
5284 | 1511 @itemx -v6\n\ |
5269 | 1512 @itemx -6\n\ |
1513 @itemx -mat\n\ | |
4884 | 1514 @itemx -mat-binary\n\ |
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
9039
diff
changeset
|
1515 Save the data in @sc{matlab}'s v6 binary data format.\n\ |
3372 | 1516 \n\ |
17170
d6499c14021c
doc: Periodic grammarcheck of documentation.
Rik <rik@octave.org>
parents:
16892
diff
changeset
|
1517 @item -V4\n\ |
5256 | 1518 @itemx -v4\n\ |
1519 @itemx -4\n\ | |
1520 @itemx -mat4-binary\n\ | |
9064
7c02ec148a3c
Check grammar on all .cc files
Rik <rdrider0-list@yahoo.com>
parents:
9039
diff
changeset
|
1521 Save the data in the binary format written by @sc{matlab} version 4.\n\ |
3688 | 1522 \n\ |
9306
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
9153
diff
changeset
|
1523 @item -text\n\ |
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
9153
diff
changeset
|
1524 Save the data in Octave's text data format. (default).\n\ |
3687 | 1525 \n\ |
17170
d6499c14021c
doc: Periodic grammarcheck of documentation.
Rik <rik@octave.org>
parents:
16892
diff
changeset
|
1526 @item -zip\n\ |
5269 | 1527 @itemx -z\n\ |
10846
a4f482e66b65
Grammarcheck more of the documentation.
Rik <octave@nomad.inbox5.com>
parents:
10840
diff
changeset
|
1528 Use the gzip algorithm to compress the file. This works equally on files\n\ |
a4f482e66b65
Grammarcheck more of the documentation.
Rik <octave@nomad.inbox5.com>
parents:
10840
diff
changeset
|
1529 that are compressed with gzip outside of octave, and gzip can equally be\n\ |
12160
b64b82721062
Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
1530 used to convert the files for backward compatibility.\n\ |
b64b82721062
Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
1531 This option is only available if Octave was built with a link to the zlib\n\ |
b64b82721062
Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
1532 libraries.\n\ |
b64b82721062
Make documentation static by removing docstrings depending on #ifdef variables
Rik <octave@nomad.inbox5.com>
parents:
11586
diff
changeset
|
1533 @end table\n\ |
604 | 1534 \n\ |
9306
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
9153
diff
changeset
|
1535 The list of variables to save may use wildcard patterns containing\n\ |
3372 | 1536 the following special characters:\n\ |
14366
b76f0740940e
doc: Periodic grammar check of documentation.
Rik <octave@nomad.inbox5.com>
parents:
14268
diff
changeset
|
1537 \n\ |
3372 | 1538 @table @code\n\ |
1539 @item ?\n\ | |
1540 Match any single character.\n\ | |
1541 \n\ | |
1542 @item *\n\ | |
1543 Match zero or more characters.\n\ | |
1544 \n\ | |
1545 @item [ @var{list} ]\n\ | |
1546 Match the list of characters specified by @var{list}. If the first\n\ | |
1547 character is @code{!} or @code{^}, match all characters except those\n\ | |
9306
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
9153
diff
changeset
|
1548 specified by @var{list}. For example, the pattern @code{[a-zA-Z]} will\n\ |
12642
f96b9b9f141b
doc: Periodic grammarcheck and spellcheck of documentation.
Rik <octave@nomad.inbox5.com>
parents:
12483
diff
changeset
|
1549 match all lower and uppercase alphabetic characters.\n\ |
7718
62279ce5654c
save: fix continuation character in doc string
John W. Eaton <jwe@octave.org>
parents:
7635
diff
changeset
|
1550 \n\ |
9306
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
9153
diff
changeset
|
1551 Wildcards may also be used in the field name specifications when using\n\ |
10840 | 1552 the @option{-struct} modifier (but not in the struct name itself).\n\ |
5197 | 1553 \n\ |
3372 | 1554 @end table\n\ |
1555 \n\ | |
9306
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
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diff
changeset
|
1556 Except when using the @sc{matlab} binary data file format or the\n\ |
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
9153
diff
changeset
|
1557 @samp{-ascii} format, saving global\n\ |
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
9153
diff
changeset
|
1558 variables also saves the global status of the variable. If the variable\n\ |
de124edcebf6
Update documentation for load and save
Rik <rdrider0-list@yahoo.com>
parents:
9153
diff
changeset
|
1559 is restored at a later time using @samp{load}, it will be restored as a\n\ |
3372 | 1560 global variable.\n\ |
1561 \n\ | |
1562 The command\n\ | |
1563 \n\ | |
1564 @example\n\ | |
1565 save -binary data a b*\n\ | |
1566 @end example\n\ | |
1567 \n\ | |
1568 @noindent\n\ | |
1569 saves the variable @samp{a} and all variables beginning with @samp{b} to\n\ | |
1570 the file @file{data} in Octave's binary format.\n\ | |
16875
b04ae15530fc
Rename default_save_options() to save_default_options().
Rik <rik@octave.org>
parents:
16555
diff
changeset
|
1571 @seealso{load, save_default_options, save_header_format_string, dlmread, csvread, fread}\n\ |
11547 | 1572 @end deftypefn") |
604 | 1573 { |
1358 | 1574 // Here is where we would get the default save format if it were |
1575 // stored in a user preference variable. | |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
1576 load_save_format format = LS_TEXT; |
3019 | 1577 bool save_as_floats = false; |
3185 | 1578 bool append = false; |
5269 | 1579 bool use_zlib = false; |
1580 | |
8034
f61bd8e0d682
fix default_save_options parsing and allow mixing options with other arguments.
Jaroslav Hajek <highegg@gmail.com>
parents:
8021
diff
changeset
|
1581 // get default options |
16875
b04ae15530fc
Rename default_save_options() to save_default_options().
Rik <rik@octave.org>
parents:
16555
diff
changeset
|
1582 parse_save_options (Vsave_default_options, format, append, save_as_floats, |
8034
f61bd8e0d682
fix default_save_options parsing and allow mixing options with other arguments.
Jaroslav Hajek <highegg@gmail.com>
parents:
8021
diff
changeset
|
1583 use_zlib); |
5351 | 1584 |
8034
f61bd8e0d682
fix default_save_options parsing and allow mixing options with other arguments.
Jaroslav Hajek <highegg@gmail.com>
parents:
8021
diff
changeset
|
1585 // override from command line |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
1586 string_vector argv = args.make_argv (); |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
1587 |
20996 | 1588 argv = parse_save_options (argv, format, append, save_as_floats, use_zlib); |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
1589 |
20232
a9574e3c6e9e
Deprecate Array::length() and Sparse::length() in favour of ::numel().
Carnë Draug <carandraug@octave.org>
parents:
20172
diff
changeset
|
1590 int argc = argv.numel (); |
8034
f61bd8e0d682
fix default_save_options parsing and allow mixing options with other arguments.
Jaroslav Hajek <highegg@gmail.com>
parents:
8021
diff
changeset
|
1591 int i = 0; |
5197 | 1592 |
2057 | 1593 if (i == argc) |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20741
diff
changeset
|
1594 print_usage (); |
604 | 1595 |
20447
c6224b4e7774
maint: Rename instances of LS_ASCII to LS_TEXT for clarity.
Rik <rik@octave.org>
parents:
20443
diff
changeset
|
1596 if (save_as_floats && format == LS_TEXT) |
20831
35241c4b696c
eliminate return statements after calls to error
John W. Eaton <jwe@octave.org>
parents:
20801
diff
changeset
|
1597 error ("save: cannot specify both -text and -float-binary"); |
630 | 1598 |
20939
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
1599 octave_value_list retval; |
b17fda023ca6
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20853
diff
changeset
|
1600 |
1755 | 1601 if (argv[i] == "-") |
604 | 1602 { |
1755 | 1603 i++; |
863 | 1604 |
3687 | 1605 #ifdef HAVE_HDF5 |
1606 if (format == LS_HDF5) | |
4687 | 1607 error ("save: cannot write HDF5 format to stdout"); |
3687 | 1608 else |
20945
9d9270e2f98f
eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents:
20940
diff
changeset
|
1609 #endif |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1610 // don't insert any commands here! the brace below must go |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1611 // with the "else" above! |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1612 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1613 if (append) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1614 warning ("save: ignoring -append option for output to stdout"); |
6759 | 1615 |
19817
bafcfc5b99af
if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1616 if (nargout == 0) |
bafcfc5b99af
if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1617 save_vars (argv, i, argc, std::cout, format, save_as_floats, true); |
bafcfc5b99af
if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1618 else |
bafcfc5b99af
if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1619 { |
bafcfc5b99af
if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1620 std::ostringstream output_buf; |
bafcfc5b99af
if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1621 save_vars (argv, i, argc, output_buf, format, save_as_floats, true); |
bafcfc5b99af
if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1622 retval = octave_value (output_buf.str()); |
bafcfc5b99af
if save file name is "-" and nargout is 0, write to stdout
John W. Eaton <jwe@octave.org>
parents:
19697
diff
changeset
|
1623 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1624 } |
604 | 1625 } |
1755 | 1626 |
15466
d174210ce1ec
use ' instead of ` in error messages, warnings and most comments
John W. Eaton <jwe@octave.org>
parents:
14268
diff
changeset
|
1627 // Guard against things like 'save a*', which are probably mistakes... |
1755 | 1628 |
1629 else if (i == argc - 1 && glob_pattern_p (argv[i])) | |
20801
a542a9bf177e
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20741
diff
changeset
|
1630 print_usage (); |
604 | 1631 else |
1632 { | |
3523 | 1633 std::string fname = file_ops::tilde_expand (argv[i]); |
1755 | 1634 |
1635 i++; | |
604 | 1636 |
6625 | 1637 // Matlab v7 files are always compressed |
1638 if (format == LS_MAT7_BINARY) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1639 use_zlib = false; |
6625 | 1640 |
6759 | 1641 std::ios::openmode mode |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1642 = append ? (std::ios::app | std::ios::ate) : std::ios::out; |
6759 | 1643 |
4791 | 1644 if (format == LS_BINARY |
1645 #ifdef HAVE_HDF5 | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1646 || format == LS_HDF5 |
4791 | 1647 #endif |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1648 || format == LS_MAT_BINARY |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1649 || format == LS_MAT5_BINARY |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1650 || format == LS_MAT7_BINARY) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1651 mode |= std::ios::binary; |
3538 | 1652 |
3687 | 1653 #ifdef HAVE_HDF5 |
1654 if (format == LS_HDF5) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1655 { |
17861
870f3e12e163
maint: Use phrase "FIXME:" for problem areas in code.
Rik <rik@octave.org>
parents:
17787
diff
changeset
|
1656 // FIXME: It should be possible to append to HDF5 files. |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1657 if (append) |
20831
35241c4b696c
eliminate return statements after calls to error
John W. Eaton <jwe@octave.org>
parents:
20801
diff
changeset
|
1658 error ("save: appending to HDF5 files is not implemented"); |
6759 | 1659 |
19864
17d647821d61
maint: More cleanup of C++ code to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents:
19817
diff
changeset
|
1660 bool write_header_info |
17d647821d61
maint: More cleanup of C++ code to follow Octave coding conventions.
John W. Eaton <jwe@octave.org>
parents:
19817
diff
changeset
|
1661 = ! (append && H5Fis_hdf5 (fname.c_str ()) > 0); |
3687 | 1662 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1663 hdf5_ofstream hdf5_file (fname.c_str (), mode); |
6760 | 1664 |
21118
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1665 if (hdf5_file.file_id == -1) |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1666 err_file_open ("save", fname); |
3687 | 1667 |
21118
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1668 save_vars (argv, i, argc, hdf5_file, format, |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1669 save_as_floats, write_header_info); |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1670 |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1671 hdf5_file.close (); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1672 } |
863 | 1673 else |
20945
9d9270e2f98f
eliminate comments after preprocessor conditionals
John W. Eaton <jwe@octave.org>
parents:
20940
diff
changeset
|
1674 #endif |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1675 // don't insert any statements here! The brace below must go |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1676 // with the "else" above! |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1677 { |
5269 | 1678 #ifdef HAVE_ZLIB |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1679 if (use_zlib) |
57a59eae83cc
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John W. Eaton <jwe@octave.org>
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10309
diff
changeset
|
1680 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10309
diff
changeset
|
1681 gzofstream file (fname.c_str (), mode); |
5269 | 1682 |
21118
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1683 if (! file) |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1684 err_file_open ("save", fname); |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1685 |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1686 bool write_header_info = ! file.tellp (); |
6760 | 1687 |
21118
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1688 save_vars (argv, i, argc, file, format, |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1689 save_as_floats, write_header_info); |
5269 | 1690 |
21118
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
Rik <rik@octave.org>
parents:
21109
diff
changeset
|
1691 file.close (); |
10315
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untabify src C++ source files
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1692 } |
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|
1693 else |
5269 | 1694 #endif |
10315
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1695 { |
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1696 std::ofstream file (fname.c_str (), mode); |
11586
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1697 |
21118
3ac9f47fb04b
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1698 if (! file) |
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1699 err_file_open ("save", fname); |
3ac9f47fb04b
Invert pattern if/code/else/err_XXX to if !/err_XXX/code.
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1700 |
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1701 bool write_header_info = ! file.tellp (); |
6760 | 1702 |
21118
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1703 save_vars (argv, i, argc, file, format, |
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1704 save_as_floats, write_header_info); |
5269 | 1705 |
21118
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1706 file.close (); |
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1707 } |
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1708 } |
604 | 1709 } |
1710 | |
1711 return retval; | |
1712 } | |
1713 | |
5794 | 1714 DEFUN (crash_dumps_octave_core, args, nargout, |
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1715 "-*- texinfo -*-\n\ |
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1716 @deftypefn {} {@var{val} =} crash_dumps_octave_core ()\n\ |
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2015 Code Sprint: remove class of function from docstring for all C++ files.
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1717 @deftypefnx {} {@var{old_val} =} crash_dumps_octave_core (@var{new_val})\n\ |
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2015 Code Sprint: remove class of function from docstring for all C++ files.
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1718 @deftypefnx {} {} crash_dumps_octave_core (@var{new_val}, \"local\")\n\ |
5794 | 1719 Query or set the internal variable that controls whether Octave tries\n\ |
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1720 to save all current variables to the file @file{octave-workspace} if it\n\ |
5794 | 1721 crashes or receives a hangup, terminate or similar signal.\n\ |
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1722 \n\ |
17281
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1723 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1724 variable is changed locally for the function and any subroutines it calls.\n\ |
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1725 The original variable value is restored when exiting the function.\n\ |
5794 | 1726 @seealso{octave_core_file_limit, octave_core_file_name, octave_core_file_options}\n\ |
1727 @end deftypefn") | |
2194 | 1728 { |
5794 | 1729 return SET_INTERNAL_VARIABLE (crash_dumps_octave_core); |
2194 | 1730 } |
1731 | |
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1732 DEFUN (save_default_options, args, nargout, |
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1733 "-*- texinfo -*-\n\ |
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1734 @deftypefn {} {@var{val} =} save_default_options ()\n\ |
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1735 @deftypefnx {} {@var{old_val} =} save_default_options (@var{new_val})\n\ |
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1736 @deftypefnx {} {} save_default_options (@var{new_val}, \"local\")\n\ |
5794 | 1737 Query or set the internal variable that specifies the default options\n\ |
1738 for the @code{save} command, and defines the default format.\n\ | |
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1739 \n\ |
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1740 Typical values include @qcode{\"-ascii\"}, @qcode{\"-text -zip\"}.\n\ |
10840 | 1741 The default value is @option{-text}.\n\ |
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1742 \n\ |
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1743 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1744 variable is changed locally for the function and any subroutines it calls.\n\ |
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1745 The original variable value is restored when exiting the function.\n\ |
5794 | 1746 @seealso{save}\n\ |
1747 @end deftypefn") | |
4788 | 1748 { |
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Rik <rik@octave.org>
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1749 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (save_default_options); |
4788 | 1750 } |
1751 | |
5794 | 1752 DEFUN (octave_core_file_limit, args, nargout, |
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1753 "-*- texinfo -*-\n\ |
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2015 Code Sprint: remove class of function from docstring for all C++ files.
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1754 @deftypefn {} {@var{val} =} octave_core_file_limit ()\n\ |
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2015 Code Sprint: remove class of function from docstring for all C++ files.
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1755 @deftypefnx {} {@var{old_val} =} octave_core_file_limit (@var{new_val})\n\ |
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2015 Code Sprint: remove class of function from docstring for all C++ files.
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1756 @deftypefnx {} {} octave_core_file_limit (@var{new_val}, \"local\")\n\ |
5794 | 1757 Query or set the internal variable that specifies the maximum amount\n\ |
1758 of memory (in kilobytes) of the top-level workspace that Octave will\n\ | |
1759 attempt to save when writing data to the crash dump file (the name of\n\ | |
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1760 the file is specified by @var{octave_core_file_name}).\n\ |
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1761 \n\ |
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1762 If @var{octave_core_file_options} flags specify a binary format,\n\ |
5794 | 1763 then @var{octave_core_file_limit} will be approximately the maximum\n\ |
1764 size of the file. If a text file format is used, then the file could\n\ | |
1765 be much larger than the limit. The default value is -1 (unlimited)\n\ | |
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1766 \n\ |
17281
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1767 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1768 variable is changed locally for the function and any subroutines it calls.\n\ |
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1769 The original variable value is restored when exiting the function.\n\ |
5794 | 1770 @seealso{crash_dumps_octave_core, octave_core_file_name, octave_core_file_options}\n\ |
1771 @end deftypefn") | |
3709 | 1772 { |
5794 | 1773 return SET_INTERNAL_VARIABLE (octave_core_file_limit); |
3709 | 1774 } |
1775 | |
5794 | 1776 DEFUN (octave_core_file_name, args, nargout, |
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|
1777 "-*- texinfo -*-\n\ |
20853
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|
1778 @deftypefn {} {@var{val} =} octave_core_file_name ()\n\ |
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2015 Code Sprint: remove class of function from docstring for all C++ files.
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|
1779 @deftypefnx {} {@var{old_val} =} octave_core_file_name (@var{new_val})\n\ |
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|
1780 @deftypefnx {} {} octave_core_file_name (@var{new_val}, \"local\")\n\ |
5794 | 1781 Query or set the internal variable that specifies the name of the file\n\ |
1782 used for saving data from the top-level workspace if Octave aborts.\n\ | |
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1783 \n\ |
17281
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1784 The default value is @qcode{\"octave-workspace\"}\n\ |
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1785 \n\ |
17281
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1786 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1787 variable is changed locally for the function and any subroutines it calls.\n\ |
17281
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1788 The original variable value is restored when exiting the function.\n\ |
5794 | 1789 @seealso{crash_dumps_octave_core, octave_core_file_name, octave_core_file_options}\n\ |
1790 @end deftypefn") | |
2194 | 1791 { |
5794 | 1792 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (octave_core_file_name); |
1793 } | |
4791 | 1794 |
5794 | 1795 DEFUN (octave_core_file_options, args, nargout, |
17787
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|
1796 "-*- texinfo -*-\n\ |
20853
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|
1797 @deftypefn {} {@var{val} =} octave_core_file_options ()\n\ |
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2015 Code Sprint: remove class of function from docstring for all C++ files.
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|
1798 @deftypefnx {} {@var{old_val} =} octave_core_file_options (@var{new_val})\n\ |
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2015 Code Sprint: remove class of function from docstring for all C++ files.
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|
1799 @deftypefnx {} {} octave_core_file_options (@var{new_val}, \"local\")\n\ |
5794 | 1800 Query or set the internal variable that specifies the options used for\n\ |
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1801 saving the workspace data if Octave aborts.\n\ |
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1802 \n\ |
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1803 The value of @code{octave_core_file_options} should follow the same format\n\ |
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1804 as the options for the @code{save} function. The default value is Octave's\n\ |
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1805 binary format.\n\ |
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1806 \n\ |
17281
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1807 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1808 variable is changed locally for the function and any subroutines it calls.\n\ |
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1809 The original variable value is restored when exiting the function.\n\ |
5642 | 1810 @seealso{crash_dumps_octave_core, octave_core_file_name, octave_core_file_limit}\n\ |
5794 | 1811 @end deftypefn") |
1812 { | |
1813 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (octave_core_file_options); | |
1814 } | |
2194 | 1815 |
5794 | 1816 DEFUN (save_header_format_string, args, nargout, |
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|
1817 "-*- texinfo -*-\n\ |
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1818 @deftypefn {} {@var{val} =} save_header_format_string ()\n\ |
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1819 @deftypefnx {} {@var{old_val} =} save_header_format_string (@var{new_val})\n\ |
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|
1820 @deftypefnx {} {} save_header_format_string (@var{new_val}, \"local\")\n\ |
5794 | 1821 Query or set the internal variable that specifies the format\n\ |
1822 string used for the comment line written at the beginning of\n\ | |
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1823 text-format data files saved by Octave.\n\ |
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1824 \n\ |
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1825 The format string is passed to @code{strftime} and should begin with the\n\ |
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1826 character @samp{#} and contain no newline characters. If the value of\n\ |
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1827 @code{save_header_format_string} is the empty string, the header comment is\n\ |
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1828 omitted from text-format data files. The default value is\n\ |
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1829 @c Set example in small font to prevent overfull line\n\ |
3709 | 1830 \n\ |
7031 | 1831 @smallexample\n\ |
4060 | 1832 \"# Created by Octave VERSION, %a %b %d %H:%M:%S %Y %Z <USER@@HOST>\"\n\ |
7031 | 1833 @end smallexample\n\ |
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1834 \n\ |
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1835 When called from inside a function with the @qcode{\"local\"} option, the\n\ |
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1836 variable is changed locally for the function and any subroutines it calls.\n\ |
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1837 The original variable value is restored when exiting the function.\n\ |
9306
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|
1838 @seealso{strftime, save}\n\ |
5794 | 1839 @end deftypefn") |
1840 { | |
1841 return SET_INTERNAL_VARIABLE (save_header_format_string); | |
2194 | 1842 } |