Mercurial > octave
annotate libinterp/corefcn/file-io.cc @ 23573:1b4f4ec53b4a
use new script to tag fixed bugs in tests
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 09 Jun 2017 17:44:57 -0400 |
parents | 0703d31e1ec0 |
children | f6c5db0a02e7 |
rev | line source |
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1 | 1 /* |
2 | |
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3 Copyright (C) 1993-2017 John W. Eaton |
1 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
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8 under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation; either version 3 of the License, or |
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10 (at your option) any later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
1 | 16 |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
1 | 20 |
21 */ | |
22 | |
2095 | 23 // Originally written by John C. Campbell <jcc@bevo.che.wisc.edu> |
1230 | 24 // |
2095 | 25 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of |
26 // the following functions: | |
1230 | 27 // |
2095 | 28 // popen |
29 // pclose | |
30 // execute (now popen2.m) | |
31 // sync_system (now merged with system) | |
32 // async_system (now merged with system) | |
1230 | 33 |
9322 | 34 // Extensively revised by John W. Eaton <jwe@octave.org>, |
2095 | 35 // April 1996. |
1 | 36 |
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37 #if defined (HAVE_CONFIG_H) |
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38 # include "config.h" |
1 | 39 #endif |
40 | |
4797 | 41 #include <cerrno> |
42 #include <cstdio> | |
1343 | 43 |
3503 | 44 #include <iostream> |
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45 #include <limits> |
7336 | 46 #include <stack> |
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47 #include <string> |
4726 | 48 #include <vector> |
1350 | 49 |
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50 #if defined (HAVE_ZLIB_H) |
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51 # include <zlib.h> |
5325 | 52 #endif |
53 | |
2926 | 54 #include "file-ops.h" |
6159 | 55 #include "file-stat.h" |
5102 | 56 #include "lo-ieee.h" |
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57 #include "mkostemp-wrapper.h" |
6159 | 58 #include "oct-env.h" |
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59 #include "oct-locbuf.h" |
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60 #include "tmpfile-wrapper.h" |
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61 #include "unistd-wrappers.h" |
2926 | 62 |
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63 #include "builtin-defun-decls.h" |
1352 | 64 #include "defun.h" |
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65 #include "error.h" |
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66 #include "errwarn.h" |
6108 | 67 #include "file-io.h" |
6159 | 68 #include "load-path.h" |
2095 | 69 #include "oct-fstrm.h" |
70 #include "oct-iostrm.h" | |
1377 | 71 #include "oct-map.h" |
2095 | 72 #include "oct-prcstrm.h" |
73 #include "oct-stream.h" | |
74 #include "oct-strstrm.h" | |
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75 #include "ov.h" |
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76 #include "ovl.h" |
1 | 77 #include "pager.h" |
444 | 78 #include "sysdep.h" |
1352 | 79 #include "utils.h" |
2370 | 80 #include "variables.h" |
1583 | 81 |
2902 | 82 static octave_value stdin_file; |
83 static octave_value stdout_file; | |
84 static octave_value stderr_file; | |
85 | |
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86 static octave::stream stdin_stream; |
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87 static octave::stream stdout_stream; |
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88 static octave::stream stderr_stream; |
4468 | 89 |
1 | 90 void |
164 | 91 initialize_file_io (void) |
1 | 92 { |
4468 | 93 stdin_stream = octave_istream::create (&std::cin, "stdin"); |
2116 | 94 |
3531 | 95 // This uses octave_stdout (see pager.h), not std::cout so that Octave's |
2116 | 96 // standard output stream will pass through the pager. |
97 | |
4468 | 98 stdout_stream = octave_ostream::create (&octave_stdout, "stdout"); |
2116 | 99 |
4468 | 100 stderr_stream = octave_ostream::create (&std::cerr, "stderr"); |
1 | 101 |
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102 stdin_file = octave::stream_list::insert (stdin_stream); |
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103 stdout_file = octave::stream_list::insert (stdout_stream); |
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104 stderr_file = octave::stream_list::insert (stderr_stream); |
1 | 105 } |
106 | |
2095 | 107 void |
108 close_files (void) | |
1 | 109 { |
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110 octave::stream_list::clear (); |
2095 | 111 } |
636 | 112 |
5102 | 113 // List of files to delete when we exit or crash. |
114 // | |
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115 // FIXME: this should really be static, |
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116 // but that causes problems on some systems. |
5102 | 117 std::stack <std::string> tmp_files; |
118 | |
119 void | |
120 mark_for_deletion (const std::string& file) | |
121 { | |
122 tmp_files.push (file); | |
123 } | |
124 | |
125 void | |
126 cleanup_tmp_files (void) | |
127 { | |
128 while (! tmp_files.empty ()) | |
129 { | |
130 std::string filename = tmp_files.top (); | |
131 tmp_files.pop (); | |
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132 octave_unlink_wrapper (filename.c_str ()); |
5102 | 133 } |
134 } | |
135 | |
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136 static void |
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137 normalize_fopen_mode (std::string& mode, bool& use_zlib) |
1 | 138 { |
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139 use_zlib = false; |
896 | 140 |
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141 if (! mode.empty ()) |
368 | 142 { |
2095 | 143 // Could probably be faster, but does it really matter? |
1766 | 144 |
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145 // Accept 'W', 'R', and 'A' as 'w', 'r', and 'a' but we warn about |
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146 // them because Matlab says they don't perform "automatic |
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147 // flushing" but we don't know precisely what action that implies. |
7078 | 148 |
149 size_t pos = mode.find ('W'); | |
150 | |
8021 | 151 if (pos != std::string::npos) |
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152 { |
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153 warning_with_id ("Octave:fopen-mode", |
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154 "fopen: treating mode \"W\" as equivalent to \"w\""); |
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155 mode[pos] = 'w'; |
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156 } |
7078 | 157 |
158 pos = mode.find ('R'); | |
159 | |
8021 | 160 if (pos != std::string::npos) |
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161 { |
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162 warning_with_id ("Octave:fopen-mode", |
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163 "fopen: treating mode \"R\" as equivalent to \"r\""); |
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164 mode[pos] = 'r'; |
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165 } |
7078 | 166 |
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167 pos = mode.find ('A'); |
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168 |
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169 if (pos != std::string::npos) |
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170 { |
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171 warning_with_id ("Octave:fopen-mode", |
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172 "fopen: treating mode \"A\" as equivalent to \"a\""); |
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173 mode[pos] = 'a'; |
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174 } |
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175 |
7078 | 176 pos = mode.find ('z'); |
5325 | 177 |
8021 | 178 if (pos != std::string::npos) |
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179 { |
5325 | 180 #if defined (HAVE_ZLIB) |
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181 use_zlib = true; |
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182 mode.erase (pos, 1); |
5325 | 183 #else |
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184 err_disabled_feature ("", "gzipped files (zlib)"); |
5325 | 185 #endif |
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186 } |
5325 | 187 |
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188 // Use binary mode if 't' is not specified, but don't add |
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189 // 'b' if it is already present. |
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190 |
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191 size_t bpos = mode.find ('b'); |
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192 size_t tpos = mode.find ('t'); |
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193 |
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194 if (bpos == std::string::npos && tpos == std::string::npos) |
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195 mode += 'b'; |
1 | 196 } |
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197 } |
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198 |
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199 static std::ios::openmode |
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200 fopen_mode_to_ios_mode (const std::string& mode) |
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201 { |
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202 std::ios::openmode retval = std::ios::in; |
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203 |
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204 if (mode == "rt") |
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205 retval = std::ios::in; |
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206 else if (mode == "wt") |
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207 retval = std::ios::out | std::ios::trunc; |
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208 else if (mode == "at") |
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209 retval = std::ios::out | std::ios::app; |
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210 else if (mode == "r+t" || mode == "rt+") |
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211 retval = std::ios::in | std::ios::out; |
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212 else if (mode == "w+t" || mode == "wt+") |
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213 retval = std::ios::in | std::ios::out | std::ios::trunc; |
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214 else if (mode == "a+t" || mode == "at+") |
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215 retval = std::ios::in | std::ios::out | std::ios::app; |
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216 else if (mode == "rb" || mode == "r") |
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217 retval = std::ios::in | std::ios::binary; |
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218 else if (mode == "wb" || mode == "w") |
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219 retval = std::ios::out | std::ios::trunc | std::ios::binary; |
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220 else if (mode == "ab" || mode == "a") |
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221 retval = std::ios::out | std::ios::app | std::ios::binary; |
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222 else if (mode == "r+b" || mode == "rb+" || mode == "r+") |
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223 retval = std::ios::in | std::ios::out | std::ios::binary; |
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224 else if (mode == "w+b" || mode == "wb+" || mode == "w+") |
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225 retval = (std::ios::in | std::ios::out | std::ios::trunc |
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226 | std::ios::binary); |
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227 else if (mode == "a+b" || mode == "ab+" || mode == "a+") |
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228 retval = (std::ios::in | std::ios::out | std::ios::app |
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229 | std::ios::binary); |
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230 else |
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231 error ("invalid mode specified"); |
1 | 232 |
233 return retval; | |
234 } | |
235 | |
1957 | 236 DEFUN (fclose, args, , |
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237 doc: /* -*- texinfo -*- |
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238 @deftypefn {} {} fclose (@var{fid}) |
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239 @deftypefnx {} {} fclose ("all") |
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240 @deftypefnx {} {@var{status} =} fclose ("all") |
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241 Close the file specified by the file descriptor @var{fid}. |
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242 |
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243 If successful, @code{fclose} returns 0, otherwise, it returns -1. The |
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244 second form of the @code{fclose} call closes all open files except |
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245 @code{stdin}, @code{stdout}, @code{stderr}, and any FIDs associated |
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246 with gnuplot. |
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247 @seealso{fopen, fflush, freport} |
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248 @end deftypefn */) |
529 | 249 { |
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250 if (args.length () != 1) |
5823 | 251 print_usage (); |
1 | 252 |
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253 return ovl (octave::stream_list::remove (args(0), "fclose")); |
1 | 254 } |
255 | |
5144 | 256 DEFUN (fclear, args, , |
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257 doc: /* -*- texinfo -*- |
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258 @deftypefn {} {} fclear (@var{fid}) |
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259 Clear the stream state for the file specified by the file descriptor |
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260 @var{fid}. |
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261 @seealso{ferror, fopen} |
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262 @end deftypefn */) |
5144 | 263 { |
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264 if (args.length () != 1) |
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265 print_usage (); |
5144 | 266 |
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267 int fid = octave::stream_list::get_file_number (args(0)); |
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268 |
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269 octave::stream os = octave::stream_list::lookup (fid, "fclear"); |
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270 |
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271 os.clearerr (); |
5144 | 272 |
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273 return ovl (); |
5144 | 274 } |
275 | |
1957 | 276 DEFUN (fflush, args, , |
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277 doc: /* -*- texinfo -*- |
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278 @deftypefn {} {} fflush (@var{fid}) |
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279 Flush output to file descriptor @var{fid}. |
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280 |
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281 @code{fflush} returns 0 on success and an OS dependent error value |
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282 (@minus{}1 on Unix) on error. |
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283 |
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284 Programming Note: Flushing is useful for ensuring that all pending output |
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285 makes it to the screen before some other event occurs. For example, it is |
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286 always a good idea to flush the standard output stream before calling |
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287 @code{input}. |
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288 @seealso{fopen, fclose} |
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289 @end deftypefn */) |
1181 | 290 { |
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291 if (args.length () != 1) |
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292 print_usage (); |
1181 | 293 |
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294 octave_value retval = -1; |
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295 |
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296 // FIXME: any way to avoid special case for stdout? |
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297 int fid = octave::stream_list::get_file_number (args(0)); |
2095 | 298 |
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299 if (fid == 1) |
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300 { |
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301 octave::flush_stdout (); |
2609 | 302 |
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303 retval = 0; |
2095 | 304 } |
305 else | |
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306 { |
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307 octave::stream os = octave::stream_list::lookup (fid, "fflush"); |
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308 |
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309 retval = os.flush (); |
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310 } |
1181 | 311 |
312 return retval; | |
313 } | |
314 | |
2095 | 315 DEFUN (fgetl, args, , |
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316 doc: /* -*- texinfo -*- |
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317 @deftypefn {} {@var{str} =} fgetl (@var{fid}) |
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318 @deftypefnx {} {@var{str} =} fgetl (@var{fid}, @var{len}) |
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319 Read characters from a file, stopping after a newline, or EOF, |
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320 or @var{len} characters have been read. |
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321 |
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322 The characters read, excluding the possible trailing newline, are returned |
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323 as a string. |
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324 |
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325 If @var{len} is omitted, @code{fgetl} reads until the next newline |
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326 character. |
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327 |
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328 If there are no more characters to read, @code{fgetl} returns @minus{}1. |
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329 |
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330 To read a line and return the terminating newline see @code{fgets}. |
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331 @seealso{fgets, fscanf, fread, fopen} |
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332 @end deftypefn */) |
1339 | 333 { |
4468 | 334 static std::string who = "fgetl"; |
335 | |
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336 int nargin = args.length (); |
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337 |
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338 if (nargin < 1 || nargin > 2) |
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339 print_usage (); |
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340 |
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341 octave::stream os = octave::stream_list::lookup (args(0), who); |
1339 | 342 |
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343 octave_value len_arg = (nargin == 2) ? args(1) : octave_value (); |
2095 | 344 |
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345 bool err = false; |
2095 | 346 |
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347 std::string tmp = os.getl (len_arg, err, who); |
2095 | 348 |
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349 if (! err) |
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350 return ovl (tmp, tmp.length ()); |
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351 else |
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352 return ovl (-1, 0); |
1339 | 353 } |
354 | |
2095 | 355 DEFUN (fgets, args, , |
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356 doc: /* -*- texinfo -*- |
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357 @deftypefn {} {@var{str} =} fgets (@var{fid}) |
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358 @deftypefnx {} {@var{str} =} fgets (@var{fid}, @var{len}) |
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359 Read characters from a file, stopping after a newline, or EOF, |
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360 or @var{len} characters have been read. |
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361 |
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362 The characters read, including the possible trailing newline, are returned |
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363 as a string. |
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364 |
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365 If @var{len} is omitted, @code{fgets} reads until the next newline |
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366 character. |
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367 |
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368 If there are no more characters to read, @code{fgets} returns @minus{}1. |
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369 |
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370 To read a line and discard the terminating newline see @code{fgetl}. |
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371 @seealso{fputs, fgetl, fscanf, fread, fopen} |
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372 @end deftypefn */) |
529 | 373 { |
4468 | 374 static std::string who = "fgets"; |
375 | |
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376 int nargin = args.length (); |
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377 |
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378 if (nargin < 1 || nargin > 2) |
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379 print_usage (); |
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380 |
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381 octave::stream os = octave::stream_list::lookup (args(0), who); |
529 | 382 |
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383 octave_value len_arg = (nargin == 2) ? args(1) : octave_value (); |
2095 | 384 |
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385 bool err = false; |
2095 | 386 |
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387 std::string tmp = os.gets (len_arg, err, who); |
2095 | 388 |
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389 if (! err) |
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390 return ovl (tmp, tmp.length ()); |
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391 else |
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392 return ovl (-1.0, 0.0); |
529 | 393 } |
394 | |
9701 | 395 DEFUN (fskipl, args, , |
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396 doc: /* -*- texinfo -*- |
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397 @deftypefn {} {@var{nlines} =} fskipl (@var{fid}) |
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398 @deftypefnx {} {@var{nlines} =} fskipl (@var{fid}, @var{count}) |
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399 @deftypefnx {} {@var{nlines} =} fskipl (@var{fid}, Inf) |
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400 Read and skip @var{count} lines from the file specified by the file |
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401 descriptor @var{fid}. |
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402 |
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403 @code{fskipl} discards characters until an end-of-line is encountered |
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404 exactly @var{count}-times, or until the end-of-file marker is found. |
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405 |
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406 If @var{count} is omitted, it defaults to 1. @var{count} may also be |
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407 @code{Inf}, in which case lines are skipped until the end of the file. |
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408 This form is suitable for counting the number of lines in a file. |
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409 |
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410 Returns the number of lines skipped (end-of-line sequences encountered). |
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411 @seealso{fgetl, fgets, fscanf, fopen} |
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412 @end deftypefn */) |
9701 | 413 { |
414 static std::string who = "fskipl"; | |
415 | |
416 int nargin = args.length (); | |
417 | |
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418 if (nargin < 1 || nargin > 2) |
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419 print_usage (); |
9701 | 420 |
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421 octave::stream os = octave::stream_list::lookup (args(0), who); |
9701 | 422 |
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423 octave_value count_arg = (nargin == 2) ? args(1) : octave_value (); |
9701 | 424 |
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425 bool err = false; |
9701 | 426 |
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427 off_t tmp = os.skipl (count_arg, err, who); |
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428 |
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429 if (! err) |
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430 return ovl (tmp); |
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431 else |
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432 return ovl (); |
9701 | 433 } |
434 | |
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435 static octave::stream |
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436 do_stream_open (const std::string& name, const std::string& mode_arg, |
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437 const std::string& arch, int& fid) |
1 | 438 { |
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439 octave::stream retval; |
1 | 440 |
2095 | 441 fid = -1; |
1 | 442 |
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443 std::string mode = mode_arg; |
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444 bool use_zlib = false; |
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445 normalize_fopen_mode (mode, use_zlib); |
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446 |
4036 | 447 std::ios::openmode md = fopen_mode_to_ios_mode (mode); |
1 | 448 |
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449 octave::mach_info::float_format flt_fmt = |
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450 octave::mach_info::string_to_float_format (arch); |
1 | 451 |
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452 std::string fname = octave::sys::file_ops::tilde_expand (name); |
6159 | 453 |
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454 octave::sys::file_stat fs (fname); |
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455 |
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456 if (! (md & std::ios::out)) |
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457 fname = find_data_file_in_load_path ("fopen", fname); |
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458 |
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459 if (! fs.is_dir ()) |
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460 { |
6905 | 461 #if defined (HAVE_ZLIB) |
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462 if (use_zlib) |
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463 { |
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464 FILE *fptr = std::fopen (fname.c_str (), mode.c_str ()); |
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465 |
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466 int fd = fileno (fptr); |
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467 |
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468 gzFile gzf = ::gzdopen (fd, mode.c_str ()); |
5325 | 469 |
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470 if (fptr) |
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471 retval = octave_zstdiostream::create (fname, gzf, fd, |
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472 md, flt_fmt); |
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473 else |
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474 retval.error (std::strerror (errno)); |
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475 } |
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476 else |
5325 | 477 #endif |
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478 { |
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479 FILE *fptr = std::fopen (fname.c_str (), mode.c_str ()); |
5370 | 480 |
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481 retval = octave_stdiostream::create (fname, fptr, md, |
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482 flt_fmt); |
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483 |
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484 if (! fptr) |
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485 retval.error (std::strerror (errno)); |
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486 } |
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487 |
1 | 488 } |
489 | |
2095 | 490 return retval; |
491 } | |
1 | 492 |
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493 static octave::stream |
2095 | 494 do_stream_open (const octave_value& tc_name, const octave_value& tc_mode, |
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495 const octave_value& tc_arch, const char *fcn, int& fid) |
2095 | 496 { |
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497 octave::stream retval; |
2095 | 498 |
499 fid = -1; | |
500 | |
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501 std::string name = tc_name.xstring_value ("%s: filename must be a string", fcn); |
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502 std::string mode = tc_mode.xstring_value ("%s: file mode must be a string", fcn); |
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503 std::string arch = tc_arch.xstring_value ("%s: architecture type must be a string", fcn); |
1 | 504 |
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505 retval = do_stream_open (name, mode, arch, fid); |
1 | 506 |
507 return retval; | |
508 } | |
509 | |
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510 DEFUN (fopen, args, nargout, |
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511 doc: /* -*- texinfo -*- |
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512 @deftypefn {} {@var{fid} =} fopen (@var{name}) |
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513 @deftypefnx {} {@var{fid} =} fopen (@var{name}, @var{mode}) |
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514 @deftypefnx {} {@var{fid} =} fopen (@var{name}, @var{mode}, @var{arch}) |
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515 @deftypefnx {} {[@var{fid}, @var{msg}] =} fopen (@dots{}) |
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516 @deftypefnx {} {@var{fid_list} =} fopen ("all") |
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517 @deftypefnx {} {[@var{file}, @var{mode}, @var{arch}] =} fopen (@var{fid}) |
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518 Open a file for low-level I/O or query open files and file descriptors. |
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519 |
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520 The first form of the @code{fopen} function opens the named file with |
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521 the specified mode (read-write, read-only, etc.) and architecture |
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522 interpretation (IEEE big endian, IEEE little endian, etc.), and returns |
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523 an integer value that may be used to refer to the file later. If an |
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524 error occurs, @var{fid} is set to @minus{}1 and @var{msg} contains the |
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525 corresponding system error message. The @var{mode} is a one or two |
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526 character string that specifies whether the file is to be opened for |
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527 reading, writing, or both. |
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528 |
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529 The second form of the @code{fopen} function returns a vector of file ids |
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530 corresponding to all the currently open files, excluding the |
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531 @code{stdin}, @code{stdout}, and @code{stderr} streams. |
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532 |
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533 The third form of the @code{fopen} function returns information about the |
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534 open file given its file id. |
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535 |
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536 For example, |
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537 |
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538 @example |
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539 myfile = fopen ("splat.dat", "r", "ieee-le"); |
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540 @end example |
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541 |
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542 @noindent |
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543 opens the file @file{splat.dat} for reading. If necessary, binary |
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544 numeric values will be read assuming they are stored in IEEE format with |
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545 the least significant bit first, and then converted to the native |
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546 representation. |
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547 |
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548 Opening a file that is already open simply opens it again and returns a |
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549 separate file id. It is not an error to open a file several times, |
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550 though writing to the same file through several different file ids may |
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551 produce unexpected results. |
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552 |
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553 The possible values @samp{mode} may have are |
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554 |
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555 @table @asis |
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556 @item @samp{r} (default) |
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557 Open a file for reading. |
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558 |
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559 @item @samp{w} |
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560 Open a file for writing. The previous contents are discarded. |
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561 |
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562 @item @samp{a} |
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563 Open or create a file for writing at the end of the file. |
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564 |
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565 @item @samp{r+} |
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566 Open an existing file for reading and writing. |
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567 |
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568 @item @samp{w+} |
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569 Open a file for reading or writing. The previous contents are |
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570 discarded. |
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571 |
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572 @item @samp{a+} |
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573 Open or create a file for reading or writing at the end of the |
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574 file. |
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575 @end table |
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576 |
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577 Append a @qcode{"t"} to the mode string to open the file in text mode or a |
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578 @qcode{"b"} to open in binary mode. On Windows and Macintosh systems, |
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579 text mode reading and writing automatically converts linefeeds to the |
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580 appropriate line end character for the system (carriage-return linefeed on |
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581 Windows, carriage-return on Macintosh). The default when no mode is |
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582 specified is binary mode. |
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583 |
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584 Additionally, you may append a @qcode{"z"} to the mode string to open a |
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585 gzipped file for reading or writing. For this to be successful, you |
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586 must also open the file in binary mode. |
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587 |
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588 The parameter @var{arch} is a string specifying the default data format |
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589 for the file. Valid values for @var{arch} are: |
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590 |
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591 @table @asis |
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592 @item @qcode{"native"} or @qcode{"n"} (default) |
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593 The format of the current machine. |
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594 |
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595 @item @qcode{"ieee-be"} or @qcode{"b"} |
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596 IEEE big endian format. |
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597 |
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598 @item @qcode{"ieee-le"} or @qcode{"l"} |
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599 IEEE little endian format. |
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600 @end table |
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601 |
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602 @noindent |
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603 However, conversions are currently only supported for @samp{native}, |
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604 @samp{ieee-be}, and @samp{ieee-le} formats. |
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605 |
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606 When opening a new file that does not yet exist, permissions will be set to |
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607 @code{0666 - @var{umask}}. |
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608 @seealso{fclose, fgets, fgetl, fscanf, fread, fputs, fdisp, fprintf, fwrite, fskipl, fseek, frewind, ftell, feof, ferror, fclear, fflush, freport, umask} |
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609 @end deftypefn */) |
529 | 610 { |
611 int nargin = args.length (); | |
612 | |
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613 if (nargin < 1 || nargin > 3) |
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614 print_usage (); |
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615 |
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616 octave_value_list retval = ovl (-1.0); |
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617 |
2095 | 618 if (nargin == 1) |
619 { | |
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620 if (args(0).is_string ()) |
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621 { |
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622 // If there is only one argument and it is a string but it |
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623 // is not the string "all", we assume it is a file to open |
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624 // with MODE = "r". To open a file called "all", you have |
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625 // to supply more than one argument. |
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626 if (nargout < 2 && args(0).string_value () == "all") |
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627 return octave::stream_list::open_file_numbers (); |
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628 } |
2095 | 629 else |
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630 { |
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631 string_vector tmp = octave::stream_list::get_info (args(0)); |
529 | 632 |
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633 retval = ovl (tmp(0), tmp(1), tmp(2)); |
3263 | 634 |
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635 return retval; |
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636 } |
1 | 637 } |
638 | |
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639 octave_value mode = (nargin == 2 || nargin == 3) |
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640 ? args(1) : octave_value ("r"); |
2095 | 641 |
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642 octave_value arch = (nargin == 3) |
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643 ? args(2) : octave_value ("native"); |
2095 | 644 |
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645 int fid = -1; |
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646 |
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647 octave::stream os = do_stream_open (args(0), mode, arch, "fopen", fid); |
5370 | 648 |
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649 if (os) |
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650 retval = ovl (octave::stream_list::insert (os), ""); |
2095 | 651 else |
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652 { |
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653 int error_number = 0; |
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654 |
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655 retval = ovl (-1.0, os.error (false, error_number)); |
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656 } |
1 | 657 |
658 return retval; | |
659 } | |
660 | |
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661 /* |
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662 ## FIXME: Only have tests for query mode. Need others for regular fopen call. |
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663 %!test # Uses hardcoded value of 1 for stdout |
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664 %! [name, mode, arch] = fopen (1); |
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665 %! assert (name, "stdout"); |
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666 %! assert (mode, "w"); |
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667 |
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668 %!test # Query of non-existent stream returns all "" |
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669 %! [name, mode, arch] = fopen (-1); |
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670 %! assert (name, ""); |
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671 %! assert (mode, ""); |
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672 %! assert (arch, ""); |
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673 */ |
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674 |
1957 | 675 DEFUN (freport, args, , |
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676 doc: /* -*- texinfo -*- |
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677 @deftypefn {} {} freport () |
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678 Print a list of which files have been opened, and whether they are open |
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679 for reading, writing, or both. |
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680 |
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681 For example: |
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682 |
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683 @example |
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684 @group |
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685 freport () |
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686 |
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687 @print{} number mode arch name |
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688 @print{} ------ ---- ---- ---- |
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689 @print{} 0 r ieee-le stdin |
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690 @print{} 1 w ieee-le stdout |
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691 @print{} 2 w ieee-le stderr |
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692 @print{} 3 r ieee-le myfile |
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693 @end group |
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694 @end example |
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695 @seealso{fopen, fclose, is_valid_file_id} |
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696 @end deftypefn */) |
1181 | 697 { |
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698 if (args.length () > 0) |
1181 | 699 warning ("freport: ignoring extra arguments"); |
700 | |
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701 octave_stdout << octave::stream_list::list_open_files (); |
1181 | 702 |
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703 return ovl (); |
1181 | 704 } |
705 | |
4715 | 706 DEFUN (frewind, args, nargout, |
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707 doc: /* -*- texinfo -*- |
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708 @deftypefn {} {} frewind (@var{fid}) |
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709 @deftypefnx {} {@var{status} =} frewind (@var{fid}) |
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710 Move the file pointer to the beginning of the file specified by file |
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711 descriptor @var{fid}. |
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712 |
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713 @code{frewind} returns 0 for success, and -1 if an error is encountered. It |
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714 is equivalent to @code{fseek (@var{fid}, 0, SEEK_SET)}. |
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715 @seealso{fseek, ftell, fopen} |
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716 @end deftypefn */) |
529 | 717 { |
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718 if (args.length () != 1) |
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719 print_usage (); |
506 | 720 |
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|
721 int result = -1; |
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|
722 |
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723 octave::stream os = octave::stream_list::lookup (args(0), "frewind"); |
636 | 724 |
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725 result = os.rewind (); |
1 | 726 |
4715 | 727 if (nargout > 0) |
20918
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728 return ovl (result); |
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729 else |
20941
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20940
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730 return ovl (); |
1 | 731 } |
732 | |
1957 | 733 DEFUN (fseek, args, , |
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734 doc: /* -*- texinfo -*- |
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735 @deftypefn {} {} fseek (@var{fid}, @var{offset}) |
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736 @deftypefnx {} {} fseek (@var{fid}, @var{offset}, @var{origin}) |
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737 @deftypefnx {} {@var{status} =} fseek (@dots{}) |
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738 Set the file pointer to the location @var{offset} within the file @var{fid}. |
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739 |
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740 The pointer is positioned @var{offset} characters from the @var{origin}, |
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741 which may be one of the predefined variables @w{@code{SEEK_CUR}} (current |
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742 position), @w{@code{SEEK_SET}} (beginning), or @w{@code{SEEK_END}} (end of |
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743 file) or strings @qcode{"cof"}, @qcode{"bof"} or @qcode{"eof"}. If |
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744 @var{origin} is omitted, @w{@code{SEEK_SET}} is assumed. @var{offset} may |
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745 be positive, negative, or zero but not all combinations of @var{origin} and |
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746 @var{offset} can be realized. |
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747 |
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748 @code{fseek} returns 0 on success and -1 on error. |
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749 @seealso{fskipl, frewind, ftell, fopen} |
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750 @end deftypefn */) |
529 | 751 { |
752 int nargin = args.length (); | |
753 | |
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754 if (nargin < 2 || nargin > 3) |
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755 print_usage (); |
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|
756 |
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757 octave::stream os = octave::stream_list::lookup (args(0), "fseek"); |
1181 | 758 |
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|
759 octave_value origin_arg = (nargin == 3) ? args(2) : octave_value (-1.0); |
1 | 760 |
21127
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|
761 return ovl (os.seek (args(1), origin_arg)); |
1 | 762 } |
763 | |
1957 | 764 DEFUN (ftell, args, , |
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765 doc: /* -*- texinfo -*- |
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766 @deftypefn {} {@var{pos} =} ftell (@var{fid}) |
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767 Return the position of the file pointer as the number of characters from the |
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768 beginning of the file specified by file descriptor @var{fid}. |
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769 @seealso{fseek, frewind, feof, fopen} |
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770 @end deftypefn */) |
1181 | 771 { |
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772 if (args.length () != 1) |
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773 print_usage (); |
506 | 774 |
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775 octave::stream os = octave::stream_list::lookup (args(0), "ftell"); |
1 | 776 |
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777 return ovl (os.tell ()); |
1 | 778 } |
779 | |
3737 | 780 DEFUN (fprintf, args, nargout, |
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781 doc: /* -*- texinfo -*- |
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782 @deftypefn {} {} fprintf (@var{fid}, @var{template}, @dots{}) |
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783 @deftypefnx {} {} fprintf (@var{template}, @dots{}) |
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784 @deftypefnx {} {@var{numbytes} =} fprintf (@dots{}) |
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785 This function is equivalent to @code{printf}, except that the output is |
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786 written to the file descriptor @var{fid} instead of @code{stdout}. |
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787 |
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788 If @var{fid} is omitted, the output is written to @code{stdout} making the |
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789 function exactly equivalent to @code{printf}. |
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790 |
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791 The optional output returns the number of bytes written to the file. |
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792 |
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793 Implementation Note: For compatibility with @sc{matlab}, escape sequences in |
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794 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are |
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795 expanded even when the template string is defined with single quotes. |
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796 @seealso{fputs, fdisp, fwrite, fscanf, printf, sprintf, fopen} |
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797 @end deftypefn */) |
1181 | 798 { |
4468 | 799 static std::string who = "fprintf"; |
800 | |
1181 | 801 int nargin = args.length (); |
802 | |
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803 if (! (nargin > 1 || (nargin > 0 && args(0).is_string ()))) |
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804 print_usage (); |
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805 |
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806 int result; |
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807 |
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808 octave::stream os; |
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809 int fmt_n = 0; |
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810 |
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811 if (args(0).is_string ()) |
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812 os = octave::stream_list::lookup (1, who); |
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813 else |
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814 { |
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815 fmt_n = 1; |
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816 os = octave::stream_list::lookup (args(0), who); |
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817 } |
2873 | 818 |
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819 if (! args(fmt_n).is_string ()) |
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820 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
1181 | 821 |
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822 octave_value_list tmp_args; |
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823 |
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824 if (nargin > 1 + fmt_n) |
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825 { |
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826 tmp_args.resize (nargin-fmt_n-1, octave_value ()); |
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827 |
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828 for (int i = fmt_n + 1; i < nargin; i++) |
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829 tmp_args(i-fmt_n-1) = args(i); |
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830 } |
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831 |
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832 result = os.printf (args(fmt_n), tmp_args, who); |
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833 |
4715 | 834 if (nargout > 0) |
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835 return ovl (result); |
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836 else |
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837 return ovl (); |
1181 | 838 } |
839 | |
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840 DEFUN (printf, args, nargout, |
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841 doc: /* -*- texinfo -*- |
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842 @deftypefn {} {} printf (@var{template}, @dots{}) |
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843 Print optional arguments under the control of the template string |
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844 @var{template} to the stream @code{stdout} and return the number of |
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845 characters printed. |
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846 @ifclear OCTAVE_MANUAL |
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847 |
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848 See the Formatted Output section of the GNU Octave manual for a |
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849 complete description of the syntax of the template string. |
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850 @end ifclear |
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851 |
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852 Implementation Note: For compatibility with @sc{matlab}, escape sequences in |
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853 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are |
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854 expanded even when the template string is defined with single quotes. |
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855 @seealso{fprintf, sprintf, scanf} |
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856 @end deftypefn */) |
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857 { |
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858 static std::string who = "printf"; |
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859 |
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860 int nargin = args.length (); |
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861 |
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862 if (nargin == 0) |
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863 print_usage (); |
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864 |
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865 int result; |
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866 |
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867 if (! args(0).is_string ()) |
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868 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
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869 |
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|
870 octave_value_list tmp_args; |
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871 |
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872 if (nargin > 1) |
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873 { |
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874 tmp_args.resize (nargin-1, octave_value ()); |
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875 |
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876 for (int i = 1; i < nargin; i++) |
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877 tmp_args(i-1) = args(i); |
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878 } |
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879 |
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880 result = stdout_stream.printf (args(0), tmp_args, who); |
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881 |
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882 if (nargout > 0) |
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883 return ovl (result); |
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884 else |
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|
885 return ovl (); |
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886 } |
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887 |
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888 DEFUN (fputs, args, , |
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889 doc: /* -*- texinfo -*- |
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890 @deftypefn {} {} fputs (@var{fid}, @var{string}) |
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891 @deftypefnx {} {@var{status} =} fputs (@var{fid}, @var{string}) |
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892 Write the string @var{string} to the file with file descriptor @var{fid}. |
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893 |
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894 The string is written to the file with no additional formatting. Use |
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895 @code{fdisp} instead to automatically append a newline character appropriate |
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896 for the local machine. |
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897 |
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898 Return a non-negative number on success or EOF on error. |
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|
899 @seealso{fdisp, fprintf, fwrite, fopen} |
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900 @end deftypefn */) |
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901 { |
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902 static std::string who = "fputs"; |
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903 |
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904 if (args.length () != 2) |
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|
905 print_usage (); |
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|
906 |
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|
907 octave::stream os = octave::stream_list::lookup (args(0), who); |
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908 |
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909 return ovl (os.puts (args(1), who)); |
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910 } |
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|
911 |
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912 DEFUN (puts, args, , |
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913 doc: /* -*- texinfo -*- |
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914 @deftypefn {} {} puts (@var{string}) |
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915 @deftypefnx {} {@var{status} =} puts (@var{string}) |
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916 Write a string to the standard output with no formatting. |
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917 |
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918 The string is written verbatim to the standard output. Use @code{disp} to |
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919 automatically append a newline character appropriate for the local machine. |
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920 |
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921 Return a non-negative number on success and EOF on error. |
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922 @seealso{fputs, disp} |
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923 @end deftypefn */) |
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924 { |
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925 static std::string who = "puts"; |
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926 |
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927 if (args.length () != 1) |
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928 print_usage (); |
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929 |
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930 return ovl (stdout_stream.puts (args(0), who)); |
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931 } |
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932 |
2095 | 933 DEFUN (sprintf, args, , |
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934 doc: /* -*- texinfo -*- |
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935 @deftypefn {} {} sprintf (@var{template}, @dots{}) |
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936 This is like @code{printf}, except that the output is returned as a |
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937 string. |
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938 |
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939 Unlike the C library function, which requires you to provide a suitably |
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940 sized string as an argument, Octave's @code{sprintf} function returns the |
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941 string, automatically sized to hold all of the items converted. |
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942 |
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943 Implementation Note: For compatibility with @sc{matlab}, escape sequences in |
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944 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are |
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945 expanded even when the template string is defined with single quotes. |
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946 @seealso{printf, fprintf, sscanf} |
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947 @end deftypefn */) |
1 | 948 { |
4468 | 949 static std::string who = "sprintf"; |
950 | |
2095 | 951 int nargin = args.length (); |
1 | 952 |
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953 if (nargin == 0) |
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954 print_usage (); |
2116 | 955 |
21506
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956 // We don't use octave_ostrstream::create here because need direct |
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957 // access to the OSTR object so that we can extract a string object |
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958 // from it to return. |
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959 octave_ostrstream *ostr = new octave_ostrstream (); |
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960 |
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961 // The octave::stream destructor will delete OSTR for us. |
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962 octave::stream os (ostr); |
628 | 963 |
20898
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964 if (! os.is_valid ()) |
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965 error ("%s: unable to create output buffer", who.c_str ()); |
1 | 966 |
20898
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967 octave_value fmt_arg = args(0); |
1 | 968 |
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969 if (! fmt_arg.is_string ()) |
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970 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
628 | 971 |
20898
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972 octave_value_list retval (3); |
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973 |
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974 octave_value_list tmp_args; |
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975 if (nargin > 1) |
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976 { |
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977 tmp_args.resize (nargin-1, octave_value ()); |
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978 |
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979 for (int i = 1; i < nargin; i++) |
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980 tmp_args(i-1) = args(i); |
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|
981 } |
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982 |
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|
983 // NOTE: Call to os.error must precede next call to ostr which might reset it. |
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|
984 retval(2) = os.printf (fmt_arg, tmp_args, who); |
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|
985 retval(1) = os.error (); |
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|
986 |
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|
987 std::string result = ostr->str (); |
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|
988 char type = (fmt_arg.is_sq_string () ? '\'' : '"'); |
20898
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|
989 |
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990 retval(0) = (result.empty () ? octave_value (charMatrix (1, 0), type) |
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991 : octave_value (result, type)); |
1 | 992 |
993 return retval; | |
994 } | |
995 | |
2095 | 996 DEFUN (fscanf, args, , |
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997 doc: /* -*- texinfo -*- |
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998 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}] =} fscanf (@var{fid}, @var{template}, @var{size}) |
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999 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}] =} fscanf (@var{fid}, @var{template}, "C") |
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1000 In the first form, read from @var{fid} according to @var{template}, |
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1001 returning the result in the matrix @var{val}. |
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1002 |
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1003 The optional argument @var{size} specifies the amount of data to read |
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1004 and may be one of |
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1005 |
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1006 @table @code |
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1007 @item Inf |
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1008 Read as much as possible, returning a column vector. |
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1009 |
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1010 @item @var{nr} |
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1011 Read up to @var{nr} elements, returning a column vector. |
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1012 |
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1013 @item [@var{nr}, Inf] |
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1014 Read as much as possible, returning a matrix with @var{nr} rows. If the |
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1015 number of elements read is not an exact multiple of @var{nr}, the last |
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1016 column is padded with zeros. |
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1017 |
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1018 @item [@var{nr}, @var{nc}] |
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1019 Read up to @code{@var{nr} * @var{nc}} elements, returning a matrix with |
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1020 @var{nr} rows. If the number of elements read is not an exact multiple |
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1021 of @var{nr}, the last column is padded with zeros. |
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1022 @end table |
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1023 |
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1024 @noindent |
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1025 If @var{size} is omitted, a value of @code{Inf} is assumed. |
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1026 |
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1027 A string is returned if @var{template} specifies only character conversions. |
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1028 |
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1029 The number of items successfully read is returned in @var{count}. |
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1030 |
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1031 If an error occurs, @var{errmsg} contains a system-dependent error message. |
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1032 |
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1033 In the second form, read from @var{fid} according to @var{template}, |
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1034 with each conversion specifier in @var{template} corresponding to a |
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1035 single scalar return value. This form is more ``C-like'', and also |
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1036 compatible with previous versions of Octave. The number of successful |
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1037 conversions is returned in @var{count} |
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1038 @ifclear OCTAVE_MANUAL |
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1039 |
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1040 See the Formatted Input section of the GNU Octave manual for a |
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1041 complete description of the syntax of the template string. |
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1042 @end ifclear |
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1043 @seealso{fgets, fgetl, fread, scanf, sscanf, fopen} |
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1044 @end deftypefn */) |
1181 | 1045 { |
4468 | 1046 static std::string who = "fscanf"; |
1047 | |
1181 | 1048 int nargin = args.length (); |
1049 | |
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1050 if (nargin < 2 || nargin > 3) |
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1051 print_usage (); |
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1052 |
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1053 octave_value_list retval; |
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1054 |
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1055 octave::stream os = octave::stream_list::lookup (args(0), who); |
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1056 |
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1057 if (! args(1).is_string ()) |
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1058 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
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1059 |
2215 | 1060 if (nargin == 3 && args(2).is_string ()) |
2095 | 1061 { |
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1062 retval = ovl (os.oscanf (args(1), who)); |
2095 | 1063 } |
1181 | 1064 else |
2215 | 1065 { |
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1066 octave_idx_type count = 0; |
2215 | 1067 |
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1068 Array<double> size = (nargin == 3) |
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1069 ? args(2).vector_value () |
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1070 : Array<double> (dim_vector (1, 1), |
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1071 lo_ieee_inf_value ()); |
2215 | 1072 |
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1073 octave_value tmp = os.scanf (args(1), size, count, who); |
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1074 |
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1075 retval = ovl (tmp, count, os.error ()); |
2215 | 1076 } |
1181 | 1077 |
1078 return retval; | |
1079 } | |
1080 | |
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1081 static std::string |
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1082 get_scan_string_data (const octave_value& val, const std::string& who) |
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1083 { |
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1084 std::string retval; |
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1085 |
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1086 if (! val.is_string ()) |
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1087 error ("%s: argument STRING must be a string", who.c_str ()); |
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1088 |
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1089 octave_value tmp = val.reshape (dim_vector (1, val.numel ())); |
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1090 |
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1091 retval = tmp.string_value (); |
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1092 |
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1093 return retval; |
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1094 } |
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1095 |
2095 | 1096 DEFUN (sscanf, args, , |
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1097 doc: /* -*- texinfo -*- |
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1098 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}, @var{pos}] =} sscanf (@var{string}, @var{template}, @var{size}) |
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1099 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}] =} sscanf (@var{string}, @var{template}, "C") |
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1100 This is like @code{fscanf}, except that the characters are taken from the |
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1101 string @var{string} instead of from a stream. |
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1102 |
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1103 Reaching the end of the string is treated as an end-of-file condition. In |
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1104 addition to the values returned by @code{fscanf}, the index of the next |
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1105 character to be read is returned in @var{pos}. |
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1106 @seealso{fscanf, scanf, sprintf} |
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1107 @end deftypefn */) |
444 | 1108 { |
4468 | 1109 static std::string who = "sscanf"; |
1110 | |
506 | 1111 int nargin = args.length (); |
1112 | |
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1113 if (nargin < 2 || nargin > 3) |
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1114 print_usage (); |
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1115 |
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1116 octave_value_list retval; |
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1117 |
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1118 std::string data = get_scan_string_data (args(0), who); |
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1119 |
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1120 octave::stream os = octave_istrstream::create (data); |
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1121 |
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1122 if (! os.is_valid ()) |
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1123 error ("%s: unable to create temporary input buffer", who.c_str ()); |
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1124 |
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1125 if (! args(1).is_string ()) |
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1126 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
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1127 |
2215 | 1128 if (nargin == 3 && args(2).is_string ()) |
2095 | 1129 { |
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1130 retval = ovl (os.oscanf (args(1), who)); |
444 | 1131 } |
1132 else | |
2215 | 1133 { |
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1134 octave_idx_type count = 0; |
2215 | 1135 |
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1136 Array<double> size = (nargin == 3) ? args(2).vector_value () |
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1137 : Array<double> (dim_vector (1, 1), |
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1138 lo_ieee_inf_value ()); |
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1139 |
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1140 octave_value tmp = os.scanf (args(1), size, count, who); |
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1141 |
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1142 // FIXME: is this the right thing to do? |
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1143 // Extract error message first, because getting |
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1144 // position will clear it. |
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1145 std::string errmsg = os.error (); |
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1146 |
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1147 retval = ovl (tmp, count, errmsg, |
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1148 (os.eof () ? data.length () : os.tell ()) + 1); |
2215 | 1149 } |
444 | 1150 |
1151 return retval; | |
1152 } | |
1153 | |
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1154 DEFUN (scanf, args, nargout, |
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1155 doc: /* -*- texinfo -*- |
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1156 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}] =} scanf (@var{template}, @var{size}) |
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1157 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}]] =} scanf (@var{template}, "C") |
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1158 This is equivalent to calling @code{fscanf} with @var{fid} = @code{stdin}. |
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1159 |
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1160 It is currently not useful to call @code{scanf} in interactive programs. |
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1161 @seealso{fscanf, sscanf, printf} |
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1162 @end deftypefn */) |
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1163 { |
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1164 int nargin = args.length (); |
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1165 |
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1166 octave_value_list tmp_args (nargin+1, octave_value ()); |
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1167 |
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1168 tmp_args (0) = 0.0; |
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1169 for (int i = 0; i < nargin; i++) |
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1170 tmp_args(i+1) = args(i); |
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|
1171 |
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1172 return Ffscanf (tmp_args, nargout); |
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1173 } |
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|
1174 |
21504 | 1175 static octave_value_list |
1176 textscan_internal (const std::string& who, const octave_value_list& args) | |
1177 { | |
1178 if (args.length () < 1) | |
1179 print_usage (who); | |
1180 | |
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1181 octave::stream os; |
21507
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1182 |
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1183 if (args(0).is_string ()) |
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|
1184 { |
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1185 std::string data = get_scan_string_data (args(0), who); |
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1186 |
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1187 os = octave_istrstream::create (data); |
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1188 |
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1189 if (! os.is_valid ()) |
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1190 error ("%s: unable to create temporary input buffer", who.c_str ()); |
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1191 } |
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1192 else |
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1193 os =octave::stream_list::lookup (args(0), who); |
21504 | 1194 |
1195 int nskip = 1; | |
1196 | |
1197 std::string fmt; | |
1198 | |
1199 if (args.length () == 1) | |
1200 { | |
1201 // ommited format = %f. explicit "" = width from file | |
1202 fmt = "%f"; | |
1203 } | |
1204 else if (args(1).is_string ()) | |
1205 { | |
1206 fmt = args(1).string_value (); | |
1207 | |
1208 if (args(1).is_sq_string ()) | |
1209 fmt = do_string_escapes (fmt); | |
1210 | |
1211 nskip++; | |
1212 } | |
1213 else | |
1214 error ("%s: FORMAT must be a string", who.c_str ()); | |
1215 | |
1216 octave_idx_type ntimes = -1; | |
1217 | |
1218 if (args.length () > 2) | |
1219 { | |
1220 if (args(2).is_numeric_type ()) | |
1221 { | |
1222 ntimes = args(2).idx_type_value (); | |
1223 | |
1224 if (ntimes < args(2).double_value ()) | |
1225 error ("%s: REPEAT = %g is too large", | |
1226 who.c_str (), args(2).double_value ()); | |
1227 | |
1228 nskip++; | |
1229 } | |
1230 } | |
1231 | |
1232 octave_value_list options = args.splice (0, nskip); | |
1233 | |
1234 octave_idx_type count = 0; | |
1235 | |
1236 octave_value result = os.textscan (fmt, ntimes, options, who, count); | |
1237 | |
1238 std::string errmsg = os.error (); | |
1239 | |
1240 return ovl (result, count, errmsg); | |
1241 } | |
1242 | |
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1243 DEFUN (textscan, args, , |
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1244 doc: /* -*- texinfo -*- |
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1245 @deftypefn {} {@var{C} =} textscan (@var{fid}, @var{format}) |
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1246 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{repeat}) |
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1247 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{param}, @var{value}, @dots{}) |
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1248 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{repeat}, @var{param}, @var{value}, @dots{}) |
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1249 @deftypefnx {} {@var{C} =} textscan (@var{str}, @dots{}) |
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1250 @deftypefnx {} {[@var{C}, @var{position}, @var{errmsg}] =} textscan (@dots{}) |
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1251 Read data from a text file or string. |
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1252 |
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1253 The string @var{str} or file associated with @var{fid} is read from and |
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1254 parsed according to @var{format}. The function is an extension of |
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1255 @code{strread} and @code{textread}. Differences include: the ability to |
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1256 read from either a file or a string, additional options, and additional |
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1257 format specifiers. |
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1258 |
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1259 The input is interpreted as a sequence of words, delimiters (such as |
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1260 whitespace), and literals. The characters that form delimiters and |
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1261 whitespace are determined by the options. The format consists of format |
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1262 specifiers interspersed between literals. In the format, whitespace forms |
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1263 a delimiter between consecutive literals, but is otherwise ignored. |
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1264 |
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1265 The output @var{C} is a cell array where the number of columns is determined |
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1266 by the number of format specifiers. |
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1267 |
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1268 The first word of the input is matched to the first specifier of the format |
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1269 and placed in the first column of the output; the second is matched to the |
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1270 second specifier and placed in the second column and so forth. If there |
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1271 are more words than specifiers then the process is repeated until all words |
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1272 have been processed or the limit imposed by @var{repeat} has been met (see |
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1273 below). |
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1274 |
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1275 The string @var{format} describes how the words in @var{str} should be |
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1276 parsed. As in @var{fscanf}, any (non-whitespace) text in the format that is |
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1277 not one of these specifiers is considered a literal. If there is a literal |
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1278 between two format specifiers then that same literal must appear in the |
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1279 input stream between the matching words. |
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1280 |
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1281 The following specifiers are valid: |
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1282 |
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1283 @table @code |
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1284 @item %f |
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1285 @itemx %f64 |
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1286 @itemx %n |
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1287 The word is parsed as a number and converted to double. |
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1288 |
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1289 @item %f32 |
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1290 The word is parsed as a number and converted to single (float). |
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1291 |
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1292 @item %d |
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1293 @itemx %d8 |
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1294 @itemx %d16 |
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1295 @itemx %d32 |
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1296 @itemx %d64 |
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1297 The word is parsed as a number and converted to int8, int16, int32, or |
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1298 int64. If no size is specified then int32 is used. |
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1299 |
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1300 @item %u |
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1301 @itemx %u8 |
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1302 @itemx %u16 |
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1303 @itemx %u32 |
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1304 @itemx %u64 |
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1305 The word is parsed as a number and converted to uint8, uint16, uint32, or |
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1306 uint64. If no size is specified then uint32 is used. |
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1307 |
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1308 @item %s |
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1309 The word is parsed as a string ending at the last character before |
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1310 whitespace, an end-of-line, or a delimiter specified in the options. |
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1311 |
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1312 @item %q |
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1313 The word is parsed as a "quoted string". |
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1314 If the first character of the string is a double quote (") then the string |
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1315 includes everything until a matching double quote---including whitespace, |
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1316 delimiters, and end-of-line characters. If a pair of consecutive double |
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1317 quotes appears in the input, it is replaced in the output by a single |
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1318 double quote. For examples, the input "He said ""Hello""" would |
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1319 return the value 'He said "Hello"'. |
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1320 |
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1321 @item %c |
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1322 The next character of the input is read. |
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1323 This includes delimiters, whitespace, and end-of-line characters. |
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1324 |
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1325 @item %[@dots{}] |
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1326 @itemx %[^@dots{}] |
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1327 In the first form, the word consists of the longest run consisting of only |
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1328 characters between the brackets. Ranges of characters can be specified by |
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1329 a hyphen; for example, %[0-9a-zA-Z] matches all alphanumeric characters (if |
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1330 the underlying character set is ASCII). Since @sc{matlab} treats hyphens |
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1331 literally, this expansion only applies to alphanumeric characters. To |
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1332 include '-' in the set, it should appear first or last in the brackets; to |
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1333 include ']', it should be the first character. If the first character is |
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1334 '^' then the word consists of characters @strong{not} listed. |
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1335 |
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1336 @item %N@dots{} |
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1337 For %s, %c %d, %f, %n, %u, an optional width can be specified as %Ns, etc. |
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1338 where N is an integer > 1. For %c, this causes exactly N characters to be |
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1339 read instead of a single character. For the other specifiers, it is an |
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1340 upper bound on the number of characters read; normal delimiters can cause |
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1341 fewer characters to be read. For complex numbers, this limit applies to |
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1342 the real and imaginary components individually. For %f and %n, format |
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1343 specifiers like %N.Mf are allowed, where M is an upper bound on number of |
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1344 characters after the decimal point to be considered; subsequent digits are |
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1345 skipped. For example, the specifier %8.2f would read 12.345e6 as 1.234e7. |
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1346 |
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1347 @item %*@dots{} |
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1348 The word specified by the remainder of the conversion specifier is skipped. |
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1349 |
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1350 @item literals |
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1351 In addition the format may contain literal character strings; these will be |
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1352 skipped during reading. If the input string does not match this literal, |
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1353 the processing terminates. |
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1354 @end table |
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1355 |
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1356 Parsed words corresponding to the first specifier are returned in the first |
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1357 output argument and likewise for the rest of the specifiers. |
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1358 |
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1359 By default, if there is only one input argument, @var{format} is @t{"%f"}. |
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1360 This means that numbers are read from the input into a single column vector. |
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1361 If @var{format} is explicitly empty (@qcode{""}) then textscan will |
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1362 return data in a number of columns matching the number of fields on the |
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1363 first data line of the input. Either of these is suitable only when the |
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1364 input is exclusively numeric. |
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1365 |
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1366 For example, the string |
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1367 |
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1368 @smallexample |
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1369 @group |
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1370 @var{str} = "\ |
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1371 Bunny Bugs 5.5\n\ |
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1372 Duck Daffy -7.5e-5\n\ |
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1373 Penguin Tux 6" |
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1374 @end group |
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1375 @end smallexample |
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1376 |
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1377 @noindent |
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1378 can be read using |
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1379 |
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1380 @example |
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1381 @var{a} = textscan (@var{str}, "%s %s %f"); |
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1382 @end example |
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1383 |
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1384 The optional numeric argument @var{repeat} can be used for limiting the |
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1385 number of items read: |
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1386 |
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1387 @table @asis |
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1388 @item -1 |
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1389 Read all of the string or file until the end (default). |
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1390 |
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1391 @item N |
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1392 Read until the first of two conditions occurs: 1) the format has been |
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1393 processed N times, or 2) N lines of the input have been processed. Zero |
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1394 (0) is an acceptable value for @var{repeat}. Currently, end-of-line |
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1395 characters inside %q, %c, and %[@dots{}]$ conversions do not contribute to |
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1396 the line count. This is incompatible with @sc{matlab} and may change in |
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1397 future. |
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1398 @end table |
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1399 |
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1400 The behavior of @code{textscan} can be changed via property/value pairs. |
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1401 The following properties are recognized: |
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1402 |
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1403 @table @asis |
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1404 @item @qcode{"BufSize"} |
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1405 This specifies the number of bytes to use for the internal buffer. |
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1406 A modest speed improvement may be obtained by setting this to a large value |
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1407 when reading a large file, especially if the input contains long strings. |
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1408 The default is 4096, or a value dependent on @var{n} if that is specified. |
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1409 |
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1410 @item @qcode{"CollectOutput"} |
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1411 A value of 1 or true instructs @code{textscan} to concatenate consecutive |
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1412 columns of the same class in the output cell array. A value of 0 or false |
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1413 (default) leaves output in distinct columns. |
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1414 |
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1415 @item @qcode{"CommentStyle"} |
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1416 Specify parts of the input which are considered comments and will be |
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1417 skipped. @var{value} is the comment style and can be either (1) A string |
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1418 or 1x1 cell string, to skip everything to the right of it; (2) A cell array |
21992
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1419 of two strings, to skip everything between the first and second strings. |
21966
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1420 Comments are only parsed where whitespace is accepted and do not act as |
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1421 delimiters. |
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1422 |
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1423 @item @qcode{"Delimiter"} |
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1424 If @var{value} is a string, any character in @var{value} will be used to |
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1425 split the input into words. If @var{value} is a cell array of strings, |
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1426 any string in the array will be used to split the input into words. |
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1427 (default value = any whitespace.) |
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1428 |
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1429 @item @qcode{"EmptyValue"} |
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1430 Value to return for empty numeric values in non-whitespace delimited data. |
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1431 The default is NaN@. When the data type does not support NaN (int32 for |
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1432 example), then the default is zero. |
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1433 |
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1434 @item @qcode{"EndOfLine"} |
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1435 @var{value} can be either an emtpy or one character specifying the |
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1436 end-of-line character, or the pair |
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1437 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} (CRLF). |
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1438 In the latter case, any of |
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1439 @qcode{"@xbackslashchar{}r"}, @qcode{"@xbackslashchar{}n"} or |
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1440 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} is counted as a (single) |
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1441 newline. If no value is given, |
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1442 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} is used. |
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1443 @c If set to "" (empty string) EOLs are ignored as delimiters and added |
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1444 @c to whitespace. |
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|
1445 |
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1446 @c When reading from a character string, optional input argument @var{n} |
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1447 @c specifies the number of times @var{format} should be used (i.e., to limit |
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1448 @c the amount of data read). |
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1449 @c When reading from file, @var{n} specifies the number of data lines to read; |
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1450 @c in this sense it differs slightly from the format repeat count in strread. |
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|
1451 |
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1452 @item @qcode{"HeaderLines"} |
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1453 The first @var{value} number of lines of @var{fid} are skipped. Note that |
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1454 this does not refer to the first non-comment lines, but the first lines of |
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1455 any type. |
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1456 |
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1457 @item @qcode{"MultipleDelimsAsOne"} |
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1458 If @var{value} is nonzero, treat a series of consecutive delimiters, |
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1459 without whitespace in between, as a single delimiter. Consecutive |
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1460 delimiter series need not be vertically aligned. Without this option, a |
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1461 single delimiter before the end of the line does not cause the line to be |
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1462 considered to end with an empty value, but a single delimiter at the start |
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1463 of a line causes the line to be considered to start with an empty value. |
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|
1464 |
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1465 @item @qcode{"TreatAsEmpty"} |
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1466 Treat single occurrences (surrounded by delimiters or whitespace) of the |
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1467 string(s) in @var{value} as missing values. |
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1468 |
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1469 @item @qcode{"ReturnOnError"} |
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|
1470 If set to numerical 1 or true, return normally as soon as an error is |
22299
9fc91bb2aec3
doc: grammarcheck documentation for 4.2 release.
Rik <rik@octave.org>
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22022
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|
1471 encountered, such as trying to read a string using @code{%f}. |
21966
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1472 If set to 0 or false, return an error and no data. |
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1473 |
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1474 @item @qcode{"Whitespace"} |
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1475 Any character in @var{value} will be interpreted as whitespace and trimmed; |
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1476 The default value for whitespace is |
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1477 @c Note: the next line specifically has a newline which generates a space |
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1478 @c in the output of qcode, but keeps the next line < 80 characters. |
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1479 @qcode{" |
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1480 @xbackslashchar{}b@xbackslashchar{}r@xbackslashchar{}n@xbackslashchar{}t"} |
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1481 (note the space). Unless whitespace is set to @qcode{""} (empty) AND at |
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1482 least one @qcode{"%s"} format conversion specifier is supplied, a space is |
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1483 always part of whitespace. |
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|
1484 |
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1485 @end table |
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|
1486 |
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|
1487 When the number of words in @var{str} or @var{fid} doesn't match an exact |
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1488 multiple of the number of format conversion specifiers, @code{textscan}'s |
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|
1489 behavior depends on whether the last character of the string or file is an |
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1490 end-of-line as specified by the @code{EndOfLine} option: |
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|
1491 |
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1492 @table @asis |
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1493 @item last character = end-of-line |
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1494 Data columns are padded with empty fields, NaN or 0 (for integer fields) so |
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1495 that all columns have equal length |
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|
1496 |
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1497 @item last character is not end-of-line |
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1498 Data columns are not padded; @code{textscan} returns columns of unequal |
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|
1499 length |
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|
1500 @end table |
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|
1501 |
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|
1502 The second output @var{position} provides the location, in characters |
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1503 from the beginning of the file or string, where processing stopped. |
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|
1504 |
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1505 @seealso{dlmread, fscanf, load, strread, textread} |
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1506 @end deftypefn */) |
21502
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|
1507 { |
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1508 static std::string who = "textscan"; |
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1509 |
21504 | 1510 return textscan_internal (who, args); |
1511 } | |
1512 | |
1513 DEFUN (__textscan__, args, , | |
21966
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|
1514 doc: /* -*- texinfo -*- |
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1515 @deftypefn {} {@var{C} =} __textscan__ (@var{who}, @dots{}) |
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|
1516 Like @code{textscan} but accept additional argument @var{who} to use |
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1517 as the name of the function when reporting errors. |
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|
1518 @end deftypefn */) |
21504 | 1519 { |
1520 if (args.length () == 0) | |
21502
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|
1521 print_usage (); |
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1522 |
21504 | 1523 return textscan_internal (args(0).string_value (), args.splice (0, 1)); |
21502
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|
1524 } |
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|
1525 |
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|
1526 /* |
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1527 %!test |
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1528 %! str = "1, 2, 3, 4\n 5, , , 8\n 9, 10, 11, 12"; |
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|
1529 %! fmtstr = "%f %d %f %s"; |
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|
1530 %! c = textscan (str, fmtstr, 2, "delimiter", ",", "emptyvalue", -Inf); |
21625 | 1531 %! assert (c{1}, [1;5]); |
1532 %! assert (c{3}, [3; -Inf]); | |
21502
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|
1533 %! assert (iscellstr (c{4})); |
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|
1534 |
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|
1535 %!test |
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1536 %! b = [10:10:100]; |
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|
1537 %! b = [b; 8*b/5]; |
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|
1538 %! str = sprintf ("%g miles/hr = %g kilometers/hr\n", b); |
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|
1539 %! fmt = "%f miles/hr = %f kilometers/hr"; |
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|
1540 %! c = textscan (str, fmt); |
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|
1541 %! assert (c{1}, b(1,:)', 1e-5); |
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|
1542 %! assert (c{2}, b(2,:)', 1e-5); |
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|
1543 |
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1544 %!test |
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|
1545 %! str = "13, -, NA, str1, -25\r\n// Middle line\r\n36, na, 05, str3, 6"; |
21625 | 1546 %! c = textscan (str, "%d %n %f %s %n", "delimiter", ",", |
1547 %! "treatAsEmpty", {"NA", "na", "-"}, "commentStyle", "//"); | |
1548 %! assert (c{1}, int32 ([13; 36])); | |
1549 %! assert (c{2}, [NaN; NaN]); | |
1550 %! assert (c{3}, [NaN; 5]); | |
1551 %! assert (c{4}, {"str1"; "str3"}); | |
1552 %! assert (c{5}, [-25; 6]); | |
21502
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|
1553 |
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|
1554 %!test |
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|
1555 %! str = "Km:10 = hhhBjjj miles16hour\r\n"; |
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changeset
|
1556 %! str = [str "Km:15 = hhhJjjj miles241hour\r\n"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1557 %! str = [str "Km:2 = hhhRjjj miles3hour\r\n"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1558 %! str = [str "Km:25 = hhhZ\r\n"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1559 %! fmt = "Km:%d = hhh%1sjjj miles%dhour"; |
21625 | 1560 %! c = textscan (str, fmt, "delimiter", " "); |
1561 %! assert (c{1}', int32 ([10, 15, 2, 25])); | |
1562 %! assert (c{2}', {'B' 'J' 'R' 'Z'}); | |
1563 %! assert (c{3}', int32 ([16, 241, 3, 0])); | |
1564 | |
1565 ## Test with default EndOfLine parameter | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1566 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1567 %! c = textscan ("L1\nL2", "%s"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1568 %! assert (c{:}, {"L1"; "L2"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1569 |
21625 | 1570 ## Test with EndofLine parameter set to "" (empty) - newline should be in word |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1571 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1572 %! c = textscan ("L1\nL2", "%s", "endofline", ""); |
21625 | 1573 %! assert (int8 ([c{:}{:}]), int8 ([76, 49, 10, 76, 50])); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1574 |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1575 ## Matlab fails this test. A literal after a conversion is not a delimiter |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1576 %!#test |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
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22725
diff
changeset
|
1577 %! ## No delimiters at all besides EOL. Skip fields, even empty fields |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
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22725
diff
changeset
|
1578 %! str = "Text1Text2Text\nTextText4Text\nText57Text"; |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1579 %! c = textscan (str, "Text%*dText%dText"); |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1580 %! assert (c{1}, int32 ([2; 4; 0])); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1581 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1582 ## CollectOutput test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1583 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1584 %! b = [10:10:100]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1585 %! b = [b; 8*b/5; 8*b*1000/5]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1586 %! str = sprintf ("%g miles/hr = %g (%g) kilometers (meters)/hr\n", b); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1587 %! fmt = "%f miles%s %s %f (%f) kilometers %*s"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1588 %! c = textscan (str, fmt, "collectoutput", 1); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1589 %! assert (size (c{3}), [10, 2]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1590 %! assert (size (c{2}), [10, 2]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
21457
diff
changeset
|
1591 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1592 ## CollectOutput test with uneven column length files |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1593 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1594 %! b = [10:10:100]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1595 %! b = [b; 8*b/5; 8*b*1000/5]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1596 %! str = sprintf ("%g miles/hr = %g (%g) kilometers (meters)/hr\n", b); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1597 %! str = [str "110 miles/hr"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1598 %! fmt = "%f miles%s %s %f (%f) kilometers %*s"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1599 %! c = textscan (str, fmt, "collectoutput", 1); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1600 %! assert (size (c{1}), [11, 1]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1601 %! assert (size (c{3}), [11, 2]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1602 %! assert (size (c{2}), [11, 2]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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changeset
|
1603 %! assert (c{3}(end), NaN); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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changeset
|
1604 %! assert (c{2}{11, 1}, "/hr"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1605 %! assert (isempty (c{2}{11, 2}), true); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1606 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1607 ## Double quoted string |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1608 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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parents:
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diff
changeset
|
1609 %! str = 'First "the second called ""the middle""" third'; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1610 %! fmt = "%q"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1611 %! c = textscan (str, fmt); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1612 %! assert (c{1}, {"First"; 'the second called "the middle"'; "third"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1613 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1614 ## Arbitrary character |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1615 %!test |
21625 | 1616 %! c = textscan ("a first, \n second, third", "%s %c %11c", "delimiter", " ,"); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1617 %! assert (c{1}, {"a"; "ond"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1618 %! assert (c{2}, {"f"; "t"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1619 %! assert (c{3}, {"irst, \n sec"; "hird"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1620 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1621 ## Field width and non-standard delimiters |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1622 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1623 %! str = "12;34;123456789;7"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1624 %! c = textscan (str, "%4d %4d", "delimiter", ";", "collectOutput", 1); |
21625 | 1625 %! assert (c, {[12, 34; 1234, 5678; 9, 7]}); |
1626 | |
1627 ## Field width and non-standard delimiters (2) | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1628 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1629 %! str = "12;34;123456789;7"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1630 %! c = textscan (str, "%4f %f", "delimiter", ";", "collectOutput", 1); |
21625 | 1631 %! assert (c, {[12, 34; 1234, 56789; 7, NaN]}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1632 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1633 ## Ignore trailing delimiter, but use leading one |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1634 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1635 %! str = "12.234e+2,34, \n12345.789-9876j,78\n,10|3"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1636 %! c = textscan (str, "%10.2f %f", "delimiter", ",", "collectOutput", 1, |
21625 | 1637 %! "expChars", "e|"); |
1638 %! assert (c, {[1223, 34; 12345.79-9876j, 78; NaN, 10000]}, 1e-6); | |
1639 | |
1640 ## Multi-character delimiter | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1641 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
1642 %! str = "99end2 space88gap 4564"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1643 %! c = textscan (str, "%d %s", "delimiter", {"end", "gap", "space"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1644 %! assert (c{1}, int32 ([99; 88])); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1645 %! assert (c{2}, {"2 "; "4564"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1646 |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
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22725
diff
changeset
|
1647 ## FIXME: Following two tests still fail (4/13/2016). |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1648 ## Delimiters as part of literals, and following literals |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
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22725
diff
changeset
|
1649 %!#test |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
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22725
diff
changeset
|
1650 %! str = "12 R&D & 7"; |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
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22725
diff
changeset
|
1651 %! c = textscan (str, "%f R&D %f", "delimiter", "&", "collectOutput", 1, |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
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22725
diff
changeset
|
1652 %! "EmptyValue", -99); |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1653 %! assert (c, {[12, -99; 7, -99]}); |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1654 |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1655 ## Delimiters as part of literals, and before literals |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1656 %!#test |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
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22725
diff
changeset
|
1657 %! str = "12 & R&D 7"; |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
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22725
diff
changeset
|
1658 %! c = textscan (str, "%f R&D %f", "delimiter", "&", "collectOutput", 1); |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1659 %! assert (c, {[12 7]}); |
21502
7a19c5678f91
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changeset
|
1660 |
21625 | 1661 ## Check number of lines read, not number of passes through format string |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1662 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1663 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1664 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1665 %! fprintf (fid, "1\n2\n3\n4\n5\n6"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1666 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1667 %! c = textscan (fid, "%f %f", 2); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1668 %! E = feof (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1669 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1670 %! unlink (f); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1671 %! assert (c, {1, 2}); |
21625 | 1672 %! assert (! E); |
1673 | |
1674 ## Check number of lines read, not number of passes through format string | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1675 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1676 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1677 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1678 %! fprintf (fid, "1\r\n2\r3\n4\r\n5\n6"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1679 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1680 %! c = textscan (fid, "%f %f", 4); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1681 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1682 %! unlink (f); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1683 %! assert (c, {[1;3], [2;4]}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1684 |
21625 | 1685 ## Check number of lines read, with multiple delimiters |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1686 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1687 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1688 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1689 %! fprintf (fid, "1-\r\n-2\r3-\n-4\r\n5\n6"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1690 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1691 %! c = textscan (fid, "%f %f", 4, "delimiter", "-", "multipleDelimsAsOne", 1); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1692 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1693 %! unlink (f); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1694 %! assert (c, {[1;3], [2;4]}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1695 |
21625 | 1696 ## Check ReturnOnError |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1697 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1698 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1699 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1700 %! str = "1 2 3\n4 s 6"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1701 %! fprintf (fid, str); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1702 %! fseek (fid, 0, "bof"); |
21622
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1703 %! c = textscan (fid, "%f %f %f", "ReturnOnError", 1); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1704 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1705 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1706 %! unlink (f); |
21622
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1707 %! u = textscan (str, "%f %f %f", "ReturnOnError", 1); |
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1708 %! assert (c, {[1;4], [2], [3]}); |
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1709 %! assert (u, {[1;4], [2], [3]}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1710 |
21625 | 1711 %! ## Check ReturnOnError (2) |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1712 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1713 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1714 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1715 %! str = "1 2 3\n4 s 6\n"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1716 %! fprintf (fid, str); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1717 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1718 %! c = textscan (fid, "%f %f %f", "ReturnOnError", 1); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1719 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1720 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1721 %! unlink (f); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1722 %! u = textscan (str, "%f %f %f", "ReturnOnError", 1); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1723 %! assert (c, {[1;4], 2, 3}); |
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1724 %! assert (u, {[1;4], 2, 3}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1725 |
21625 | 1726 %!error <Read error in field 2 of row 2> |
1727 %! textscan ("1 2 3\n4 s 6", "%f %f %f", "ReturnOnError", 0); | |
1728 | |
1729 ## Check ReturnOnError (3) | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1730 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1731 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1732 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1733 %! fprintf (fid, "1 s 3\n4 5 6"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1734 %! fseek (fid, 0, "bof"); |
21622
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1735 %! c = textscan (fid, "", "ReturnOnError", 1); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1736 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1737 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1738 %! unlink (f); |
21622
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1739 %! assert (c, {1}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1740 |
21625 | 1741 ## Check ReturnOnError with empty fields |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1742 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1743 %! c = textscan ("1,,3\n4,5,6", "", "Delimiter", ",", "ReturnOnError", 1); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1744 %! assert (c, {[1;4], [NaN;5], [3;6]}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1745 |
21625 | 1746 ## Check ReturnOnError with empty fields (2) |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1747 %!test |
21625 | 1748 %! c = textscan ("1,,3\n4,5,6", "%f %f %f", "Delimiter", ",", |
1749 %! "ReturnOnError", 1); | |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1750 %! assert (c, {[1;4], [NaN;5], [3;6]}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1751 |
21625 | 1752 ## Check ReturnOnError in first column |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1753 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1754 %! c = textscan ("1 2 3\ns 5 6", "", "ReturnOnError", 1); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1755 %! assert (c, {1, 2, 3}); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1756 |
21625 | 1757 ## FIXME: This test fails (4/14/16) |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1758 ## Test incomplete first data line |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1759 %!#test |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1760 %! R = textscan (['Empty1' char(10)], 'Empty%d %f'); |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1761 %! assert (R{1}, int32 (1)); |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
1762 %! assert (isempty (R{2}), true); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1763 |
23573
1b4f4ec53b4a
use new script to tag fixed bugs in tests
John W. Eaton <jwe@octave.org>
parents:
23572
diff
changeset
|
1764 %!test <*37023> |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1765 %! data = textscan (" 1. 1 \n 2 3\n", '%f %f'); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1766 %! assert (data{1}, [1; 2], 1e-15); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1767 %! assert (data{2}, [1; 3], 1e-15); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1768 |
22489
93ea313301f9
test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
1769 ## Whitespace test using delimiter ";" |
23573
1b4f4ec53b4a
use new script to tag fixed bugs in tests
John W. Eaton <jwe@octave.org>
parents:
23572
diff
changeset
|
1770 %!test <*37333> |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1771 %! tc{1, 1} = "C:/code;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1772 %! tc{1, end+1} = "C:/code/meas;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1773 %! tc{1, end+1} = " C:/code/sim;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1774 %! tc{1, end+1} = "C:/code/utils;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1775 %! string = [tc{:}]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1776 %! c = textscan (string, "%s", "delimiter", ";"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1777 %! for k = 1:max (numel (c{1}), numel (tc)) |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1778 %! lh = c{1}{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1779 %! rh = tc{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1780 %! rh(rh == ";") = ""; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1781 %! rh = strtrim (rh); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1782 %! assert (strcmp (lh, rh)); |
21625 | 1783 %! endfor |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1784 |
22489
93ea313301f9
test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
1785 ## Whitespace test, adding multipleDelimsAsOne true arg |
23573
1b4f4ec53b4a
use new script to tag fixed bugs in tests
John W. Eaton <jwe@octave.org>
parents:
23572
diff
changeset
|
1786 %!test <*37333> |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1787 %! tc{1, 1} = "C:/code;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1788 %! tc{1, end+1} = " C:/code/meas;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1789 %! tc{1, end+1} = "C:/code/sim;;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1790 %! tc{1, end+1} = "C:/code/utils;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1791 %! string = [tc{:}]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1792 %! c = textscan (string, "%s", "delimiter", ";", "multipleDelimsAsOne", 1); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1793 %! for k = 1:max (numel (c{1}), numel (tc)) |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1794 %! lh = c{1}{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1795 %! rh = tc{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1796 %! rh(rh == ";") = ""; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1797 %! rh = strtrim (rh); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1798 %! assert (strcmp (lh, rh)); |
21625 | 1799 %! endfor |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1800 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1801 ## Whitespace test (bug #37333), adding multipleDelimsAsOne false arg |
23573
1b4f4ec53b4a
use new script to tag fixed bugs in tests
John W. Eaton <jwe@octave.org>
parents:
23572
diff
changeset
|
1802 %!test <*37333> |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1803 %! tc{1, 1} = "C:/code;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1804 %! tc{1, end+1} = " C:/code/meas;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1805 %! tc{1, end+1} = "C:/code/sim;;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1806 %! tc{1, end+1} = ""; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1807 %! tc{1, end+1} = "C:/code/utils;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1808 %! string = [tc{:}]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1809 %! c = textscan (string, "%s", "delimiter", ";", "multipleDelimsAsOne", 0); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1810 %! for k = 1:max (numel (c{1}), numel (tc)) |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1811 %! lh = c{1}{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1812 %! rh = tc{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1813 %! rh(rh == ";") = ""; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1814 %! rh = strtrim (rh); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1815 %! assert (strcmp (lh, rh)); |
21625 | 1816 %! endfor |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1817 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1818 ## Whitespace test (bug #37333) whitespace "" arg |
23573
1b4f4ec53b4a
use new script to tag fixed bugs in tests
John W. Eaton <jwe@octave.org>
parents:
23572
diff
changeset
|
1819 %!test <*37333> |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1820 %! tc{1, 1} = "C:/code;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1821 %! tc{1, end+1} = " C:/code/meas;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1822 %! tc{1, end+1} = "C:/code/sim;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1823 %! tc{1, end+1} = "C:/code/utils;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1824 %! string = [tc{:}]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1825 %! c = textscan (string, "%s", "delimiter", ";", "whitespace", ""); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1826 %! for k = 1:max (numel (c{1}), numel (tc)) |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1827 %! lh = c{1}{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1828 %! rh = tc{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1829 %! rh(rh == ";") = ""; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1830 %! assert (strcmp (lh, rh)); |
21625 | 1831 %! endfor |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1832 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1833 ## Whitespace test (bug #37333), whitespace " " arg |
23573
1b4f4ec53b4a
use new script to tag fixed bugs in tests
John W. Eaton <jwe@octave.org>
parents:
23572
diff
changeset
|
1834 %!test <*37333> |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1835 %! tc{1, 1} = "C:/code;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1836 %! tc{1, end+1} = " C:/code/meas;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1837 %! tc{1, end+1} = "C:/code/sim;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1838 %! tc{1, end+1} = "C:/code/utils;"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1839 %! string = [tc{:}]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1840 %! c = textscan (string, "%s", "delimiter", ";", "whitespace", " "); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1841 %! for k = 1:max (numel (c{1}), numel (tc)) |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1842 %! lh = c{1}{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1843 %! rh = tc{k}; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1844 %! rh(rh == ";") = ""; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1845 %! rh = strtrim (rh); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1846 %! assert (strcmp (lh, rh)); |
21625 | 1847 %! endfor |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1848 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1849 ## Tests reading with empty format, should return proper nr of columns |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1850 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1851 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1852 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1853 %! fprintf (fid, " 1 2 3 4\n5 6 7 8"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1854 %! fseek (fid, 0, "bof"); |
21625 | 1855 %! C = textscan (fid, ""); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1856 %! E = feof (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1857 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1858 %! unlink (f); |
21625 | 1859 %! assert (C{1}, [1 ; 5], 1e-6); |
1860 %! assert (C{2}, [2 ; 6], 1e-6); | |
1861 %! assert (C{3}, [3 ; 7], 1e-6); | |
1862 %! assert (C{4}, [4 ; 8], 1e-6); | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1863 %! assert (E); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1864 |
21621
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1865 ## Test leaving the file at the correct position on exit |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1866 %!test |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1867 %! f = tempname (); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1868 %! fid = fopen (f, "w+"); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1869 %! fprintf (fid, "1,2\n3,4\n"); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1870 %! fseek (fid, 0, "bof"); |
21625 | 1871 %! C = textscan (fid, "%s %f", 2, "Delimiter", ","); |
21621
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1872 %! E = ftell (fid); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1873 %! fclose (fid); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1874 %! unlink (f); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1875 %! assert (E, 8); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1876 |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1877 ## Tests reading with empty format; empty fields & incomplete lower row |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1878 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1879 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1880 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1881 %! fprintf (fid, " ,2,,4\n5,6"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1882 %! fseek (fid, 0, "bof"); |
21625 | 1883 %! C = textscan (fid, "", "delimiter", ",", "EmptyValue", 999, |
1884 %! "CollectOutput" , 1); | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1885 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1886 %! unlink (f); |
21625 | 1887 %! assert (C{1}, [999, 2, 999, 4; 5, 6, 999, 999], 1e-6); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
1888 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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1889 ## Error message tests |
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1890 |
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1891 %!test |
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1892 %! f = tempname (); |
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1893 %! fid = fopen (f, "w+"); |
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1894 %! msg1 = "textscan: 1 parameters given, but only 0 values"; |
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1895 %! try |
21625 | 1896 %! C = textscan (fid, "", "headerlines"); |
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1897 %! end_try_catch; |
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1898 %! assert (! feof (fid)); |
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1899 %! fclose (fid); |
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1900 %! unlink (f); |
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1901 %! assert (msg1, lasterr); |
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1902 |
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1903 %!test |
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1904 %! f = tempname (); |
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1905 %! fid = fopen (f, "w+"); |
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1906 %! msg1 = "textscan: HeaderLines must be numeric"; |
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1907 %! try |
21625 | 1908 %! C = textscan (fid, "", "headerlines", "hh"); |
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1909 %! end_try_catch; |
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1910 %! fclose (fid); |
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1911 %! unlink (f); |
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1912 %! assert (msg1, lasterr); |
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1913 |
21625 | 1914 ## Skip headerlines |
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1915 %!test |
21625 | 1916 %! C = textscan ("field 1 field2\n 1 2\n3 4", "", "headerlines", 1, |
1917 %! "collectOutput", 1); | |
1918 %! assert (C, {[1 2; 3 4]}); | |
1919 | |
1920 ## Skip headerlines with non-default EOL | |
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1921 %!test |
21625 | 1922 %! C = textscan ("field 1 field2\r 1 2\r3 4", "", "headerlines", 2, |
1923 %! "collectOutput", 1, "EndOfLine", '\r'); | |
1924 %! assert (C, {[3 4]}); | |
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1925 |
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1926 %!test |
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1927 %! f = tempname (); |
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1928 %! fid = fopen (f, "w+"); |
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1929 %! fprintf (fid,"some_string"); |
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1930 %! fseek (fid, 0, "bof"); |
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1931 %! msg1 = "textscan: EndOfLine must be at most one character or '\\r\\n'"; |
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1932 %! try |
21625 | 1933 %! C = textscan (fid, "%f", "EndOfLine", "\n\r"); |
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1934 %! end_try_catch; |
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1935 %! fclose (fid); |
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1936 %! unlink (f); |
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1937 %! assert (msg1, lasterr); |
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1938 |
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1939 %!test |
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1940 %! f = tempname (); |
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1941 %! fid = fopen (f, "w+"); |
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1942 %! fprintf (fid,"some_string"); |
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1943 %! fseek (fid, 0, "bof"); |
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1944 %! msg1 = "textscan: EndOfLine must be at most one character or '\\r\\n'"; |
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1945 %! try |
21625 | 1946 %! C = textscan (fid, "%f", "EndOfLine", 33); |
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1947 %! end_try_catch; |
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1948 %! fclose (fid); |
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1949 %! unlink (f); |
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1950 %! assert (msg1, lasterr); |
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1951 |
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1952 %!assert <*41824> (textscan ("123", "", "whitespace", " "){:}, 123); |
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1953 |
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1954 ## just test supplied emptyvalue |
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1955 %!assert <*42343> (textscan (",NaN", "", "delimiter", "," ,"emptyValue" ,Inf), |
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1956 %! {Inf, NaN}) |
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1957 |
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1958 ## test padding with supplied emptyvalue |
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1959 %!test <*42343> |
21625 | 1960 %! c = textscan (",1,,4\nInf, ,NaN\n", "", "delimiter", ",", |
1961 %! "emptyvalue", -10); | |
1962 %! assert (cell2mat (c), [-10, 1, -10, 4; Inf, -10, NaN, -10]); | |
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1963 |
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1964 %!test <*42528> |
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1965 %! assert (textscan ("1i", ""){1}, 0+1i); |
21625 | 1966 %! C = textscan ("3, 2-4i, NaN\n -i, 1, 23.4+2.2i\n 1+1 1+1j", "", |
1967 %! "delimiter", ","); | |
1968 %! assert (cell2mat (C), [3+0i, 2-4i, NaN+0i; 0-i, 1+0i, 23.4+2.2i; 1 1 1+1i]); | |
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1969 |
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1970 %!test |
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1971 %! ## TreatAsEmpty |
21625 | 1972 %! C = textscan ("1,2,3,NN,5,6\n", "%d%d%d%f", "delimiter", ",", |
1973 %! "TreatAsEmpty", "NN"); | |
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1974 %! assert (C{3}(1), int32 (3)); |
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1975 %! assert (C{4}(1), NaN); |
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1976 |
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1977 ## MultipleDelimsAsOne |
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1978 %!test |
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1979 %! str = "11, 12, 13,, 15\n21,, 23, 24, 25\n,, 33, 34, 35\n"; |
21625 | 1980 %! C = textscan (str, "%f %f %f %f", "delimiter", ",", |
1981 %! "multipledelimsasone", 1, "endofline", "\n"); | |
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1982 %! assert (C{1}', [11, 21, 33]); |
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1983 %! assert (C{2}', [12, 23, 34]); |
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1984 %! assert (C{3}', [13, 24, 35]); |
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1985 %! assert (C{4}', [15, 25, NaN]); |
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1986 |
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1987 ## Single-quoted escape sequences |
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1988 %!test |
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1989 %! str = "11\t12\t13\r21\t22\t23"; |
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1990 %! c = textscan (str, "", "delimiter", '\t', "EndOfLine", '\r'); |
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1991 %! assert (c{1}', [11, 21]); |
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1992 %! assert (c{2}', [12, 22]); |
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1993 %! assert (c{3}', [13, 23]); |
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1994 |
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1995 %!test <*44750> |
21625 | 1996 %! c = textscan ("/home/foo/", "%s", "delimiter", "/", |
1997 %! "MultipleDelimsAsOne", 1); | |
1998 %! assert (c{1}, {"home"; "foo"}); | |
1999 | |
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2000 ## FIXME: Test still fails (4/13/2016). |
21625 | 2001 ## Allow cuddling %sliteral, but warn it is ambiguous |
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2002 %!#test |
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2003 %! C = textscan ("abcxyz51\nxyz83\n##xyz101", "%s xyz %d"); |
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2004 %! assert (C{1}([1 3]), {"abc"; "##"}); |
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2005 %! assert (isempty (C{1}{2}), true); |
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2006 %! assert (C{2}, int32 ([51; 83; 101])); |
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2007 |
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2008 ## Literals are not delimiters. |
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2009 |
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2010 ## Test for false positives in check for non-supported format specifiers |
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2011 %!test |
21625 | 2012 %! c = textscan ("Total: 32.5 % (of cm values)", |
2013 %! "Total: %f %% (of cm values)"); | |
2014 %! assert (c{1}, 32.5, 1e-5); | |
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|
2015 |
22489
93ea313301f9
test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents:
22407
diff
changeset
|
2016 ## Test various forms of string format specifiers |
23573
1b4f4ec53b4a
use new script to tag fixed bugs in tests
John W. Eaton <jwe@octave.org>
parents:
23572
diff
changeset
|
2017 %!test <*45712> |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
2018 %! str = "14 :1 z:2 z:3 z:5 z:11"; |
7a19c5678f91
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diff
changeset
|
2019 %! C = textscan (str, "%f %s %*s %3s %*3s %f", "delimiter", ":"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2020 %! assert (C, {14, {"1 z"}, {"3 z"}, 11}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2021 |
21625 | 2022 ## Bit width, fixed width conversion specifiers |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2023 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2024 %! str2 = "123456789012345 "; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2025 %! str2 = [str2 str2 str2 str2 str2 str2 str2 str2]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2026 %! str2 = [str2 "123456789.01234 1234567890.1234 12345.678901234 12345.678901234"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2027 %! pttrn = "%3u8%*s %5u16%*s %10u32%*s %15u64 %3d8%*s %5d16%*s %10d32%*s %15d64 %9f32%*s %14f64%*s %10.2f32%*s %12.2f64%*s"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2028 %! C = textscan (str2, pttrn, "delimiter", " "); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2029 %! assert (C{1}, uint8 (123)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2030 %! assert (C{2}, uint16 (12345)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2031 %! assert (C{3}, uint32 (1234567890)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2032 %! assert (C{4}, uint64 (123456789012345)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2033 %! assert (C{5}, int8 (123)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2034 %! assert (C{6}, int16 (12345)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2035 %! assert (C{7}, int32 (1234567890)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2036 %! assert (C{8}, int64 (123456789012345)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2037 %! assert (C{9}, single (123456789), 1e-12); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2038 %! assert (C{10}, double (1234567890.123), 1e-15); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2039 %! assert (C{11}, single (12345.68), 1e-5); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2040 %! assert (C{12}, double (12345.68), 1e-11); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2041 |
21625 | 2042 ## Bit width, fixed width conv. specifiers -- check the right amount is left |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2043 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2044 %! str2 = "123456789012345 "; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2045 %! str2 = [str2 str2 "123456789.01234"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2046 %! pttrn = "%3u8 %5u16 %10u32 %3d8 %5d16 %10d32 %9f32 %9f"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2047 %! C = textscan (str2, pttrn, "delimiter", " "); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2048 %! assert (C{1}, uint8 (123)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2049 %! assert (C{2}, uint16 (45678)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2050 %! assert (C{3}, uint32 (9012345)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2051 %! assert (C{4}, int8 (123)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2052 %! assert (C{5}, int16 (45678)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2053 %! assert (C{6}, int32 (9012345)); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2054 %! assert (C{7}, single (123456789), 1e-12); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2055 %! assert (C{8}, double (0.01234), 1e-12); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2056 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2057 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2058 %! C = textscan ("123.123", "%2f %3f %3f"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2059 %! assert (C{1}, 12); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2060 %! assert (C{2}, 3.1, 1e-11); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2061 %! assert (C{3}, 23); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2062 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2063 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2064 %! C = textscan ("123.123", "%3f %3f %3f"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2065 %! assert (C{1}, 123); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2066 %! assert (C{2}, 0.12, 1e-11); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2067 %! assert (C{3}, 3); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2068 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2069 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2070 %! C = textscan ("123.123", "%4f %3f"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2071 %! assert (C{1}, 123); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2072 %! assert (C{2}, 123); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2073 |
21625 | 2074 ## field width interrupts exponent. (Matlab incorrectly gives [12, 2e12]) |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
2075 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2076 %! assert (textscan ("12e12", "%4f"), {[120; 2]}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2077 %! assert (textscan ("12e+12", "%5f"), {[120; 2]}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2078 %! assert (textscan ("125e-12","%6f"), {[12.5; 2]}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2079 |
21625 | 2080 ## %[] tests |
2081 ## Plain [..] and *[..] | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2082 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2083 %! ar = "abcdefguvwxAny\nacegxyzTrailing\nJunk"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
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changeset
|
2084 %! C = textscan (ar, "%[abcdefg] %*[uvwxyz] %s"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2085 %! assert (C{1}, {"abcdefg"; "aceg"; ""}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2086 %! assert (C{2}, {"Any"; "Trailing"; "Junk"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2087 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2088 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2089 %! assert (textscan ("A2 B2 C3", "%*[ABC]%d", 3), {int32([2; 2; 3])}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2090 |
21625 | 2091 ## [^..] and *[^..] |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2092 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2093 %! br = "abcdefguvwx1Any\nacegxyz2Trailing\n3Junk"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2094 %! C = textscan (br, "%[abcdefg] %*[^0123456789] %s"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2095 %! assert (C{1}, {"abcdefg"; "aceg"; ""}); |
7a19c5678f91
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|
2096 %! assert (C{2}, {"1Any"; "2Trailing"; "3Junk"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2097 |
21625 | 2098 ## [..] and [^..] containing delimiters |
21502
7a19c5678f91
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changeset
|
2099 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2100 %! cr = "ab cd efguv wx1Any\na ce gx yz2Trailing\n 3Junk"; |
21625 | 2101 %! C = textscan (cr, "%[ abcdefg] %*[^0123456789] %s", "delimiter", " \n", |
2102 %! "whitespace", ""); | |
21502
7a19c5678f91
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changeset
|
2103 %! assert (C{1}, {"ab cd efg"; "a ce g"; " "}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2104 %! assert (C{2}, {"1Any"; "2Trailing"; "3Junk"}); |
7a19c5678f91
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changeset
|
2105 |
23573
1b4f4ec53b4a
use new script to tag fixed bugs in tests
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|
2106 %!assert <*36464> (textscan ("1 2 3 4 5 6", "%*n%n%*[^\n]"){1}, 2); |
21625 | 2107 |
2108 ## test %[]] and %[^]] | |
21502
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changeset
|
2109 %!test |
21625 | 2110 %! assert (textscan ("345]", "%*[123456]%[]]"){1}{1}, "]"); |
2111 %! assert (textscan ("345]", "%*[^]]%s"){1}{1}, "]"); | |
2112 | |
2113 ## Test that "-i" checks the next two characters | |
21502
7a19c5678f91
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|
2114 %!test |
7a19c5678f91
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changeset
|
2115 %! C = textscan ("-i -in -inf -infinity", "%f %f%s %f %f %s"); |
7a19c5678f91
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|
2116 %! assert (C, {-i, -i, {"n"}, -Inf, -Inf, {"inity"}}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2117 |
21625 | 2118 ## Again for "+i", this time with custom parser |
21502
7a19c5678f91
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changeset
|
2119 %!test |
7a19c5678f91
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changeset
|
2120 %! C = textscan ("+i +in +inf +infinity", "%f %f%s %f %f %s", "ExpChars", "eE"); |
7a19c5678f91
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|
2121 %! assert (C, {i, i, {"n"}, Inf, Inf, {"inity"}}); |
7a19c5678f91
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changeset
|
2122 |
21625 | 2123 ## Check single quoted format interprets control sequences |
21502
7a19c5678f91
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|
2124 %!test |
7a19c5678f91
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|
2125 %! C = textscan ("1 2\t3 4", '%f %[^\t] %f %f'); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2126 %! assert (C, {1, {"2"}, 3, 4}); |
7a19c5678f91
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|
2127 |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
2128 ## Check a non-empty line with no valid conversion registers empytValue |
21532
936ab0fca2f7
Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21507
diff
changeset
|
2129 %!test |
936ab0fca2f7
Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21507
diff
changeset
|
2130 %! C = textscan ("Empty\n", "Empty%f %f"); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
2131 %! assert (C, { NaN, NaN }); |
21532
936ab0fca2f7
Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21507
diff
changeset
|
2132 |
21625 | 2133 ## Check overflow and underflow of integer types |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2134 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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|
2135 %! a = "-1e90 "; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2136 %! b = "1e90 "; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2137 %! fmt = "%d8 %d16 %d32 %d64 %u8 %u16 %u32 %u64 "; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2138 %! C = textscan ([a a a a a a a a b b b b b b b b], fmt); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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|
2139 %! assert (C{1}, int8 ([-128; 127])); |
7a19c5678f91
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|
2140 %! assert (C{2}, int16 ([-32768; 32767])); |
7a19c5678f91
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John W. Eaton <jwe@octave.org>
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changeset
|
2141 %! assert (C{3}, int32 ([-2147483648; 2147483647])); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2142 %! assert (C{4}, int64 ([-9223372036854775808; 9223372036854775807])); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2143 %! assert (C{5}, uint8 ([0; 255])); |
7a19c5678f91
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|
2144 %! assert (C{6}, uint16 ([0; 65535])); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2145 %! assert (C{7}, uint32 ([0; 4294967295])); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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|
2146 %! assert (C{8}, uint64 ([0; 18446744073709551615])); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2147 |
21625 | 2148 ## Tests from Matlab (does The MathWorks have any copyright over the input?) |
21502
7a19c5678f91
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changeset
|
2149 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2150 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2151 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2152 %! fprintf (fid,"09/12/2005 Level1 12.34 45 1.23e10 inf Nan Yes 5.1+3i\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2153 %! fprintf (fid,"10/12/2005 Level2 23.54 60 9e19 -inf 0.001 No 2.2-.5i\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2154 %! fprintf (fid,"11/12/2005 Level3 34.90 12 2e5 10 100 No 3.1+.1i\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2155 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2156 %! C = textscan (fid,"%s %s %f32 %d8 %u %f %f %s %f"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2157 %! %assert (C{1}, {"09/12/2005";"10/12/2005";"11/12/2005"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2158 %! assert (C{2}, {"Level1";"Level2";"Level3"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2159 %! assert (C{3}, [single(12.34);single(23.54);single(34.90)]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2160 %! assert (C{4}, [int8(45);int8(60);int8(12)]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2161 %! assert (C{5}, [uint32(4294967295);uint32(4294967295);uint32(200000)]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2162 %! assert (C{6}, [inf;-inf;10]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2163 %! assert (C{7}, [NaN;0.001;100], eps); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2164 %! assert (C{8}, {"Yes";"No";"No"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2165 %! assert (C{9}, [5.1+3i;2.2-0.5i;3.1+0.1i]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2166 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2167 %! C = textscan (fid,"%s Level%d %f32 %d8 %u %f %f %s %f"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2168 %! assert (C{2}, [int32(1);int32(2);int32(3)]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2169 %! assert (C{3}, [single(12.34);single(23.54);single(34.90)]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2170 %! fseek (fid, 0, "bof"); |
21625 | 2171 %! C = textscan (fid, '%s %*[^\n]'); |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2172 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2173 %! unlink (f); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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|
2174 %! assert (C, {{"09/12/2005";"10/12/2005";"11/12/2005"}}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2175 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2176 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2177 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2178 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2179 %! fprintf (fid,"1, 2, 3, 4, , 6\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2180 %! fprintf (fid,"7, 8, 9, , 11, 12\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2181 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2182 %! C = textscan (fid,"%f %f %f %f %u8 %f", "Delimiter",",","EmptyValue",-Inf); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2183 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2184 %! unlink (f); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2185 %! assert (C{4}, [4; -Inf]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2186 %! assert (C{5}, uint8 ([0; 11])); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2187 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2188 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2189 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2190 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2191 %! fprintf (fid,"abc, 2, NA, 3, 4\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2192 %! fprintf (fid,"// Comment Here\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents:
21457
diff
changeset
|
2193 %! fprintf (fid,"def, na, 5, 6, 7\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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21457
diff
changeset
|
2194 %! fseek (fid, 0, "bof"); |
21625 | 2195 %! C = textscan (fid, "%s %n %n %n %n", "Delimiter", ",", |
2196 %! "TreatAsEmpty", {"NA","na"}, "CommentStyle", "//"); | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2197 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2198 %! unlink (f); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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21457
diff
changeset
|
2199 %! assert (C{1}, {"abc";"def"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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21457
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changeset
|
2200 %! assert (C{2}, [2; NaN]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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21457
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changeset
|
2201 %! assert (C{3}, [NaN; 5]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2202 %! assert (C{4}, [3; 6]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2203 %! assert (C{5}, [4; 7]); |
7a19c5678f91
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|
2204 |
21625 | 2205 ## FIXME: Almost passes. Second return value is {"/"}. Tested 4/14/16. |
22737
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
2206 ## Test start of comment as string |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
2207 %!#test |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
2208 %! c = textscan ("1 / 2 // 3", "%n %s %u8", "CommentStyle", {"//"}); |
7abc25e6206a
maint: Clean up code base to follow Octave coding conventions.
Rik <rik@octave.org>
parents:
22725
diff
changeset
|
2209 %! assert (c(1), {1, "/", 2}); |
21507
2cdbae31c022
improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents:
21506
diff
changeset
|
2210 |
2cdbae31c022
improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
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21506
diff
changeset
|
2211 %!assert (textscan (["1 2 3 4"; "5 6 7 8"], "%f"), {[15; 26; 37; 48]}) |
21566
02826fb0f261
textscan: Fix bug in exponent parsing
Mike Miller <mtmiller@octave.org>
parents:
21551
diff
changeset
|
2212 |
21625 | 2213 ## Check for delimiter after exponent |
21566
02826fb0f261
textscan: Fix bug in exponent parsing
Mike Miller <mtmiller@octave.org>
parents:
21551
diff
changeset
|
2214 %!assert (textscan ("1e-3|42", "%f", "delimiter", "|"), {[1e-3; 42]}) |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2215 */ |
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move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2216 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
2217 // These tests have end-comment sequences, so can't just be in a comment |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2218 #if 0 |
21625 | 2219 ## Test unfinished comment |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2220 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2221 %! c = textscan ("1 2 /* half comment", "%n %u8", "CommentStyle", {"/*", "*/"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2222 %! assert (c, {1, 2}); |
7a19c5678f91
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changeset
|
2223 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2224 ## Test reading from a real file |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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2225 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2226 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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2227 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2228 %! d = rand (1, 4); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2229 %! fprintf (fid, " %f %f /* comment */ %f %f ", d); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2230 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2231 %! A = textscan (fid, "%f %f", "CommentStyle", {"/*", "*/"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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|
2232 %! E = feof (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2233 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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2234 %! unlink (f); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2235 %! assert (A{1}, [d(1); d(3)], 1e-6); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2236 %! assert (A{2}, [d(2); d(4)], 1e-6); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2237 %! assert (E); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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changeset
|
2238 #endif |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
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|
2239 |
21625 | 2240 /* |
2241 ## Test input validation | |
2242 %!error textscan () | |
2243 %!error textscan (single (40)) | |
2244 %!error textscan ({40}) | |
2245 %!error <must be a string> textscan ("Hello World", 2) | |
2246 %!error <at most one character or> | |
2247 %! textscan ("Hello World", "%s", "EndOfLine", 3); | |
2248 %!error <'%z' is not a valid format specifier> textscan ("1.0", "%z") | |
2249 %!error <no valid format conversion specifiers> textscan ("1.0", "foo") | |
2250 */ | |
2251 | |
2116 | 2252 static octave_value |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
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diff
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|
2253 do_fread (octave::stream& os, const octave_value& size_arg, |
10315
57a59eae83cc
untabify src C++ source files
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|
2254 const octave_value& prec_arg, const octave_value& skip_arg, |
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|
2255 const octave_value& arch_arg, octave_idx_type& count) |
2116 | 2256 { |
2257 count = -1; | |
2258 | |
20703
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|
2259 Array<double> size = size_arg.xvector_value ("fread: invalid SIZE specified"); |
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|
2260 |
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|
2261 std::string prec = prec_arg.xstring_value ("fread: PRECISION must be a string"); |
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|
2262 |
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|
2263 int block_size = 1; |
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|
2264 oct_data_conv::data_type input_type; |
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|
2265 oct_data_conv::data_type output_type; |
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|
2266 |
20741
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|
2267 try |
2116 | 2268 { |
20741
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|
2269 oct_data_conv::string_to_data_type (prec, block_size, |
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|
2270 input_type, output_type); |
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|
2271 } |
22327
d0562b3159c7
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|
2272 catch (octave::execution_exception& e) |
20741
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2273 { |
20756
200ae1d650b7
propagate octave_execution_exception objects through try/catch blocks
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|
2274 error (e, "fread: invalid PRECISION specified"); |
20741
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|
2275 } |
4944 | 2276 |
20747
ee2743bd07a8
eliminate various compiler warnings
John W. Eaton <jwe@octave.org>
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|
2277 int skip = 0; |
3202 | 2278 |
20741
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|
2279 try |
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|
2280 { |
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2281 skip = skip_arg.int_value (true); |
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|
2282 } |
22327
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|
2283 catch (octave::execution_exception& e) |
20741
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|
2284 { |
20756
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|
2285 error (e, "fread: SKIP must be an integer"); |
20741
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2286 } |
2116 | 2287 |
20741
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|
2288 std::string arch = arch_arg.xstring_value ("fread: ARCH architecture type must be a string"); |
2116 | 2289 |
21739
c4ab2e54f100
use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
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21736
diff
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|
2290 octave::mach_info::float_format flt_fmt |
c4ab2e54f100
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|
2291 = octave::mach_info::string_to_float_format (arch); |
20741
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|
2292 |
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|
2293 return os.read (size, block_size, input_type, output_type, skip, |
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|
2294 flt_fmt, count); |
2116 | 2295 } |
2296 | |
2297 DEFUN (fread, args, , | |
21966
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|
2298 doc: /* -*- texinfo -*- |
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|
2299 @deftypefn {} {@var{val} =} fread (@var{fid}) |
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2300 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}) |
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|
2301 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision}) |
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move docstrings in C++ files out of C strings and into comments
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|
2302 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision}, @var{skip}) |
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move docstrings in C++ files out of C strings and into comments
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|
2303 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision}, @var{skip}, @var{arch}) |
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move docstrings in C++ files out of C strings and into comments
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2304 @deftypefnx {} {[@var{val}, @var{count}] =} fread (@dots{}) |
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move docstrings in C++ files out of C strings and into comments
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|
2305 Read binary data from the file specified by the file descriptor @var{fid}. |
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|
2306 |
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|
2307 The optional argument @var{size} specifies the amount of data to read |
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|
2308 and may be one of |
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diff
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|
2309 |
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|
2310 @table @code |
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2311 @item Inf |
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2312 Read as much as possible, returning a column vector. |
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2313 |
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2314 @item @var{nr} |
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move docstrings in C++ files out of C strings and into comments
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2315 Read up to @var{nr} elements, returning a column vector. |
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2316 |
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2317 @item [@var{nr}, Inf] |
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move docstrings in C++ files out of C strings and into comments
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2318 Read as much as possible, returning a matrix with @var{nr} rows. If the |
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move docstrings in C++ files out of C strings and into comments
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|
2319 number of elements read is not an exact multiple of @var{nr}, the last |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2320 column is padded with zeros. |
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|
2321 |
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2322 @item [@var{nr}, @var{nc}] |
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move docstrings in C++ files out of C strings and into comments
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2323 Read up to @code{@var{nr} * @var{nc}} elements, returning a matrix with |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2324 @var{nr} rows. If the number of elements read is not an exact multiple |
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move docstrings in C++ files out of C strings and into comments
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|
2325 of @var{nr}, the last column is padded with zeros. |
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2326 @end table |
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2327 |
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2328 @noindent |
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2329 If @var{size} is omitted, a value of @code{Inf} is assumed. |
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2330 |
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|
2331 The optional argument @var{precision} is a string specifying the type of |
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2332 data to read and may be one of |
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2333 |
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2334 @table @asis |
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2335 @item @qcode{"schar"} |
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2336 @itemx @qcode{"signed char"} |
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2337 Signed character. |
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2338 |
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2339 @item @qcode{"uchar"} |
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2340 @itemx @qcode{"unsigned char"} |
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2341 Unsigned character. |
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2342 |
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2343 @item @qcode{"int8"} |
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2344 @itemx @qcode{"integer*1"} |
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2345 |
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2346 8-bit signed integer. |
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2347 |
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2348 @item @qcode{"int16"} |
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2349 @itemx @qcode{"integer*2"} |
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2350 16-bit signed integer. |
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2351 |
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2352 @item @qcode{"int32"} |
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2353 @itemx @qcode{"integer*4"} |
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2354 32-bit signed integer. |
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changeset
|
2355 |
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move docstrings in C++ files out of C strings and into comments
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|
2356 @item @qcode{"int64"} |
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move docstrings in C++ files out of C strings and into comments
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|
2357 @itemx @qcode{"integer*8"} |
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move docstrings in C++ files out of C strings and into comments
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diff
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|
2358 64-bit signed integer. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2359 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2360 @item @qcode{"uint8"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2361 8-bit unsigned integer. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2362 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2363 @item @qcode{"uint16"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2364 16-bit unsigned integer. |
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move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2365 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2366 @item @qcode{"uint32"} |
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move docstrings in C++ files out of C strings and into comments
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diff
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|
2367 32-bit unsigned integer. |
112b20240c87
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diff
changeset
|
2368 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2369 @item @qcode{"uint64"} |
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move docstrings in C++ files out of C strings and into comments
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diff
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|
2370 64-bit unsigned integer. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2371 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2372 @item @qcode{"single"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2373 @itemx @qcode{"float32"} |
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move docstrings in C++ files out of C strings and into comments
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|
2374 @itemx @qcode{"real*4"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2375 32-bit floating point number. |
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diff
changeset
|
2376 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2377 @item @qcode{"double"} |
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move docstrings in C++ files out of C strings and into comments
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2378 @itemx @qcode{"float64"} |
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move docstrings in C++ files out of C strings and into comments
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|
2379 @itemx @qcode{"real*8"} |
112b20240c87
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|
2380 64-bit floating point number. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2381 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2382 @item @qcode{"char"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
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|
2383 @itemx @qcode{"char*1"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2384 Single character. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2385 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2386 @item @qcode{"short"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2387 Short integer (size is platform dependent). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2388 |
112b20240c87
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|
2389 @item @qcode{"int"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2390 Integer (size is platform dependent). |
112b20240c87
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diff
changeset
|
2391 |
112b20240c87
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|
2392 @item @qcode{"long"} |
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move docstrings in C++ files out of C strings and into comments
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|
2393 Long integer (size is platform dependent). |
112b20240c87
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|
2394 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2395 @item @qcode{"ushort"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2396 @itemx @qcode{"unsigned short"} |
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move docstrings in C++ files out of C strings and into comments
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|
2397 Unsigned short integer (size is platform dependent). |
112b20240c87
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changeset
|
2398 |
112b20240c87
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changeset
|
2399 @item @qcode{"uint"} |
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move docstrings in C++ files out of C strings and into comments
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|
2400 @itemx @qcode{"unsigned int"} |
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move docstrings in C++ files out of C strings and into comments
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|
2401 Unsigned integer (size is platform dependent). |
112b20240c87
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changeset
|
2402 |
112b20240c87
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|
2403 @item @qcode{"ulong"} |
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move docstrings in C++ files out of C strings and into comments
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|
2404 @itemx @qcode{"unsigned long"} |
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move docstrings in C++ files out of C strings and into comments
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|
2405 Unsigned long integer (size is platform dependent). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2406 |
112b20240c87
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|
2407 @item @qcode{"float"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2408 Single precision floating point number (size is platform dependent). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2409 @end table |
112b20240c87
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changeset
|
2410 |
112b20240c87
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|
2411 @noindent |
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move docstrings in C++ files out of C strings and into comments
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|
2412 The default precision is @qcode{"uchar"}. |
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|
2413 |
112b20240c87
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|
2414 The @var{precision} argument may also specify an optional repeat |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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2415 count. For example, @samp{32*single} causes @code{fread} to read |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2416 a block of 32 single precision floating point numbers. Reading in |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2417 blocks is useful in combination with the @var{skip} argument. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2418 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2419 The @var{precision} argument may also specify a type conversion. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2420 For example, @samp{int16=>int32} causes @code{fread} to read 16-bit |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2421 integer values and return an array of 32-bit integer values. By |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2422 default, @code{fread} returns a double precision array. The special |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
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|
2423 form @samp{*TYPE} is shorthand for @samp{TYPE=>TYPE}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2424 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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changeset
|
2425 The conversion and repeat counts may be combined. For example, the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2426 specification @samp{32*single=>single} causes @code{fread} to read |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
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|
2427 blocks of single precision floating point values and return an array |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
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|
2428 of single precision values instead of the default array of double |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2429 precision values. |
112b20240c87
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diff
changeset
|
2430 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2431 The optional argument @var{skip} specifies the number of bytes to skip |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2432 after each element (or block of elements) is read. If it is not |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
2433 specified, a value of 0 is assumed. If the final block read is not |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
2434 complete, the final skip is omitted. For example, |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2435 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2436 @example |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2437 fread (f, 10, "3*single=>single", 8) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2438 @end example |
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diff
changeset
|
2439 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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changeset
|
2440 @noindent |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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changeset
|
2441 will omit the final 8-byte skip because the last read will not be |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
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|
2442 a complete block of 3 values. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2443 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2444 The optional argument @var{arch} is a string specifying the data format |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2445 for the file. Valid values are |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2446 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2447 @table @asis |
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move docstrings in C++ files out of C strings and into comments
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|
2448 @item @qcode{"native"} or @qcode{"n"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2449 The format of the current machine. |
112b20240c87
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changeset
|
2450 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2451 @item @qcode{"ieee-be"} or @qcode{"b"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2452 IEEE big endian. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2453 |
112b20240c87
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changeset
|
2454 @item @qcode{"ieee-le"} or @qcode{"l"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2455 IEEE little endian. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2456 @end table |
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move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2457 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2458 If no @var{arch} is given the value used in the call to @code{fopen} which |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2459 created the file descriptor is used. Otherwise, the value specified with |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2460 @code{fread} overrides that of @code{fopen} and determines the data format. |
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move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2461 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2462 The output argument @var{val} contains the data read from the file. |
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move docstrings in C++ files out of C strings and into comments
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|
2463 |
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|
2464 The optional return value @var{count} contains the number of elements read. |
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move docstrings in C++ files out of C strings and into comments
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|
2465 @seealso{fwrite, fgets, fgetl, fscanf, fopen} |
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move docstrings in C++ files out of C strings and into comments
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diff
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|
2466 @end deftypefn */) |
529 | 2467 { |
2116 | 2468 int nargin = args.length (); |
2469 | |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2470 if (nargin < 1 || nargin > 5) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2471 print_usage (); |
2116 | 2472 |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
22837
diff
changeset
|
2473 octave::stream os = octave::stream_list::lookup (args(0), "fread"); |
2116 | 2474 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2475 octave_value size = lo_ieee_inf_value (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2476 octave_value prec = "uchar"; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2477 octave_value skip = 0; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2478 octave_value arch = "unknown"; |
2116 | 2479 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2480 int idx = 1; |
2116 | 2481 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2482 if (nargin > idx && ! args(idx).is_string ()) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2483 size = args(idx++); |
2116 | 2484 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2485 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2486 prec = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2487 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2488 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2489 skip = args(idx++); |
4257 | 2490 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2491 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2492 arch = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2493 else if (skip.is_string ()) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2494 { |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2495 arch = skip; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2496 skip = 0; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2497 } |
2116 | 2498 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2499 octave_idx_type count = -1; |
20561
c41595061186
eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20457
diff
changeset
|
2500 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2501 octave_value tmp = do_fread (os, size, prec, skip, arch, count); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2502 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2503 return ovl (tmp, count); |
529 | 2504 } |
2505 | |
2116 | 2506 static int |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
22837
diff
changeset
|
2507 do_fwrite (octave::stream& os, const octave_value& data, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10259
diff
changeset
|
2508 const octave_value& prec_arg, const octave_value& skip_arg, |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10259
diff
changeset
|
2509 const octave_value& arch_arg) |
2116 | 2510 { |
20700
68e3a747ca02
rename octave_value value extractors that accept error message args
John W. Eaton <jwe@octave.org>
parents:
20687
diff
changeset
|
2511 std::string prec = prec_arg.xstring_value ("fwrite: PRECISION must be a string"); |
20581
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2512 |
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2513 int block_size = 1; |
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2514 oct_data_conv::data_type output_type; |
2116 | 2515 |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2516 try |
20581
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2517 { |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2518 oct_data_conv::string_to_data_type (prec, block_size, output_type); |
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2519 } |
22327
d0562b3159c7
move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
22323
diff
changeset
|
2520 catch (octave::execution_exception& e) |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2521 { |
20756
200ae1d650b7
propagate octave_execution_exception objects through try/catch blocks
John W. Eaton <jwe@octave.org>
parents:
20747
diff
changeset
|
2522 error (e, "fwrite: invalid PRECISION specified"); |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2523 } |
2116 | 2524 |
20747
ee2743bd07a8
eliminate various compiler warnings
John W. Eaton <jwe@octave.org>
parents:
20741
diff
changeset
|
2525 int skip = 0; |
3202 | 2526 |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2527 try |
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2528 { |
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2529 skip = skip_arg.int_value (true); |
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2530 } |
22327
d0562b3159c7
move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
22323
diff
changeset
|
2531 catch (octave::execution_exception& e) |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2532 { |
20756
200ae1d650b7
propagate octave_execution_exception objects through try/catch blocks
John W. Eaton <jwe@octave.org>
parents:
20747
diff
changeset
|
2533 error (e, "fwrite: SKIP must be an integer"); |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2534 } |
2116 | 2535 |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2536 std::string arch = arch_arg.xstring_value ("fwrite: ARCH architecture type must be a string"); |
2116 | 2537 |
21739
c4ab2e54f100
use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents:
21736
diff
changeset
|
2538 octave::mach_info::float_format flt_fmt |
c4ab2e54f100
use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents:
21736
diff
changeset
|
2539 = octave::mach_info::string_to_float_format (arch); |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2540 |
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2541 return os.write (data, block_size, output_type, skip, flt_fmt); |
2116 | 2542 } |
2543 | |
2544 DEFUN (fwrite, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2545 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2546 @deftypefn {} {} fwrite (@var{fid}, @var{data}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2547 @deftypefnx {} {} fwrite (@var{fid}, @var{data}, @var{precision}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2548 @deftypefnx {} {} fwrite (@var{fid}, @var{data}, @var{precision}, @var{skip}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2549 @deftypefnx {} {} fwrite (@var{fid}, @var{data}, @var{precision}, @var{skip}, @var{arch}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2550 @deftypefnx {} {@var{count} =} fwrite (@dots{}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2551 Write data in binary form to the file specified by the file descriptor |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2552 @var{fid}, returning the number of values @var{count} successfully written |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2553 to the file. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2554 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2555 The argument @var{data} is a matrix of values that are to be written to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2556 the file. The values are extracted in column-major order. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2557 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2558 The remaining arguments @var{precision}, @var{skip}, and @var{arch} are |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2559 optional, and are interpreted as described for @code{fread}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2560 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2561 The behavior of @code{fwrite} is undefined if the values in @var{data} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2562 are too large to fit in the specified precision. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2563 @seealso{fread, fputs, fprintf, fopen} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2564 @end deftypefn */) |
1181 | 2565 { |
2116 | 2566 int nargin = args.length (); |
2567 | |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2568 if (nargin < 2 || nargin > 5) |
5823 | 2569 print_usage (); |
2116 | 2570 |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
22837
diff
changeset
|
2571 octave::stream os = octave::stream_list::lookup (args(0), "fwrite"); |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2572 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2573 octave_value prec = "uchar"; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2574 octave_value skip = 0; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2575 octave_value arch = "unknown"; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2576 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2577 int idx = 1; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2578 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2579 octave_value data = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2580 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2581 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2582 prec = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2583 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2584 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2585 skip = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2586 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2587 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2588 arch = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2589 else if (skip.is_string ()) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2590 { |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2591 arch = skip; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2592 skip = 0; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2593 } |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2594 |
21127
df7891224709
maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
2595 return ovl (do_fwrite (os, data, prec, skip, arch)); |
1181 | 2596 } |
2597 | |
5906 | 2598 DEFUNX ("feof", Ffeof, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2599 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2600 @deftypefn {} {@var{status} =} feof (@var{fid}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2601 Return 1 if an end-of-file condition has been encountered for the file |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2602 specified by file descriptor @var{fid} and 0 otherwise. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2603 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2604 Note that @code{feof} will only return 1 if the end of the file has already |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2605 been encountered, not if the next read operation will result in an |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2606 end-of-file condition. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2607 @seealso{fread, frewind, fseek, fclear, fopen} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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21942
diff
changeset
|
2608 @end deftypefn */) |
529 | 2609 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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|
2610 if (args.length () != 1) |
5823 | 2611 print_usage (); |
444 | 2612 |
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move some octave stream classes into octave namespace
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diff
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|
2613 octave::stream os = octave::stream_list::lookup (args(0), "feof"); |
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John W. Eaton <jwe@octave.org>
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|
2614 |
21127
df7891224709
maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
2615 return ovl (os.eof () ? 1.0 : 0.0); |
444 | 2616 } |
2617 | |
5906 | 2618 DEFUNX ("ferror", Fferror, args, , |
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move docstrings in C++ files out of C strings and into comments
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|
2619 doc: /* -*- texinfo -*- |
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|
2620 @deftypefn {} {@var{msg} =} ferror (@var{fid}) |
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diff
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|
2621 @deftypefnx {} {[@var{msg}, @var{err}] =} ferror (@var{fid}) |
22725
37e53505e2eb
doc: Use Texinfo dots macro to create ellipses.
Rik <rik@octave.org>
parents:
22720
diff
changeset
|
2622 @deftypefnx {} {[@dots{}] =} ferror (@var{fid}, "clear") |
21966
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move docstrings in C++ files out of C strings and into comments
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|
2623 Query the error status of the stream specified by file descriptor @var{fid} |
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2624 |
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|
2625 If an error condition exists then return a string @var{msg} describing the |
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|
2626 error. Otherwise, return an empty string @qcode{""}. |
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|
2627 |
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|
2628 The second input @qcode{"clear"} is optional. If supplied, the error |
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2629 state on the stream will be cleared. |
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|
2630 |
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|
2631 The optional second output is a numeric indication of the error status. |
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2632 @var{err} is 1 if an error condition has been encountered and 0 otherwise. |
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2633 |
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|
2634 Note that @code{ferror} indicates if an error has already occurred, not |
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2635 whether the next operation will result in an error condition. |
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2636 @seealso{fclear, fopen} |
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|
2637 @end deftypefn */) |
1230 | 2638 { |
2095 | 2639 int nargin = args.length (); |
1230 | 2640 |
20805
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eliminate return statements after calls to print_usage
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diff
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|
2641 if (nargin < 1 || nargin > 2) |
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|
2642 print_usage (); |
1230 | 2643 |
23059
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move some octave stream classes into octave namespace
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|
2644 octave::stream os = octave::stream_list::lookup (args(0), "ferror"); |
1230 | 2645 |
20805
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eliminate return statements after calls to print_usage
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|
2646 bool clear = false; |
2095 | 2647 |
20805
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eliminate return statements after calls to print_usage
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|
2648 if (nargin == 2) |
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|
2649 { |
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|
2650 std::string opt = args(1).string_value (); |
20561
c41595061186
eliminate more simple uses of error_state
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|
2651 |
20805
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|
2652 clear = (opt == "clear"); |
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|
2653 } |
1755 | 2654 |
20805
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eliminate return statements after calls to print_usage
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|
2655 int error_number = 0; |
1230 | 2656 |
20805
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eliminate return statements after calls to print_usage
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|
2657 std::string error_message = os.error (clear, error_number); |
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|
2658 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2659 return ovl (error_message, error_number); |
1230 | 2660 } |
2661 | |
18477
aa7ca90ce746
avoid problems if popen is a macro
John W. Eaton <jwe@octave.org>
parents:
18040
diff
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|
2662 DEFUNX ("popen", Fpopen, args, , |
21966
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|
2663 doc: /* -*- texinfo -*- |
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|
2664 @deftypefn {} {@var{fid} =} popen (@var{command}, @var{mode}) |
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2665 Start a process and create a pipe. |
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2666 |
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|
2667 The name of the command to run is given by @var{command}. The argument |
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2668 @var{mode} may be |
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|
2669 |
22720
766b0163b3b7
doc: Don't create @tables of type @code with @qcode entries.
Rik <rik@octave.org>
parents:
22511
diff
changeset
|
2670 @table @asis |
21966
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|
2671 @item @qcode{"r"} |
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|
2672 The pipe will be connected to the standard output of the process, and |
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2673 open for reading. |
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|
2674 |
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|
2675 @item @qcode{"w"} |
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|
2676 The pipe will be connected to the standard input of the process, and |
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move docstrings in C++ files out of C strings and into comments
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2677 open for writing. |
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2678 @end table |
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|
2679 |
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|
2680 The file identifier corresponding to the input or output stream of the |
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move docstrings in C++ files out of C strings and into comments
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|
2681 process is returned in @var{fid}. |
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|
2682 |
112b20240c87
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changeset
|
2683 For example: |
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|
2684 |
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|
2685 @example |
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2686 @group |
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|
2687 fid = popen ("ls -ltr / | tail -3", "r"); |
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|
2688 while (ischar (s = fgets (fid))) |
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|
2689 fputs (stdout, s); |
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2690 endwhile |
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|
2691 |
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|
2692 @print{} drwxr-xr-x 33 root root 3072 Feb 15 13:28 etc |
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2693 @print{} drwxr-xr-x 3 root root 1024 Feb 15 13:28 lib |
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2694 @print{} drwxrwxrwt 15 root root 2048 Feb 17 14:53 tmp |
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2695 @end group |
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2696 @end example |
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|
2697 @seealso{popen2} |
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|
2698 @end deftypefn */) |
1230 | 2699 { |
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|
2700 if (args.length () != 2) |
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|
2701 print_usage (); |
1230 | 2702 |
20805
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|
2703 std::string name = args(0).xstring_value ("popen: COMMAND must be a string"); |
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|
2704 std::string mode = args(1).xstring_value ("popen: MODE must be a string"); |
1230 | 2705 |
20918
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maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
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diff
changeset
|
2706 octave_value retval; |
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
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|
2707 |
20805
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|
2708 if (mode == "r") |
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|
2709 { |
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|
2710 octave::stream ips = octave_iprocstream::create (name); |
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|
2711 |
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|
2712 retval = octave::stream_list::insert (ips); |
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|
2713 } |
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|
2714 else if (mode == "w") |
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|
2715 { |
23059
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|
2716 octave::stream ops = octave_oprocstream::create (name); |
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|
2717 |
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|
2718 retval = octave::stream_list::insert (ops); |
2095 | 2719 } |
1230 | 2720 else |
20805
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|
2721 error ("popen: invalid MODE specified"); |
1230 | 2722 |
2723 return retval; | |
2724 } | |
2725 | |
16308
122c1a7a3004
avoid trouble if pclose is a macro
John W. Eaton <jwe@octave.org>
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16099
diff
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|
2726 DEFUNX ("pclose", Fpclose, args, , |
21966
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|
2727 doc: /* -*- texinfo -*- |
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|
2728 @deftypefn {} {} pclose (@var{fid}) |
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|
2729 Close a file identifier that was opened by @code{popen}. |
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|
2730 |
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|
2731 The function @code{fclose} may also be used for the same purpose. |
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2732 @seealso{fclose, popen} |
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|
2733 @end deftypefn */) |
1230 | 2734 { |
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|
2735 if (args.length () != 1) |
5823 | 2736 print_usage (); |
1379 | 2737 |
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|
2738 return ovl (octave::stream_list::remove (args(0), "pclose")); |
1379 | 2739 } |
2740 | |
19278
6ca096827123
Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
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19268
diff
changeset
|
2741 DEFUN (tempname, args, , |
21966
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|
2742 doc: /* -*- texinfo -*- |
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|
2743 @deftypefn {} {@var{fname} =} tempname () |
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2744 @deftypefnx {} {@var{fname} =} tempname (@var{dir}) |
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2745 @deftypefnx {} {@var{fname} =} tempname (@var{dir}, @var{prefix}) |
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|
2746 Return a unique temporary filename as a string. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2747 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2748 If @var{prefix} is omitted, a value of @qcode{"oct-"} is used. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2749 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2750 If @var{dir} is also omitted, the default directory for temporary files |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2751 (@code{P_tmpdir}) is used. If @var{dir} is provided, it must exist, |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2752 otherwise the default directory for temporary files is used. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2753 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2754 Programming Note: Because the named file is not opened by @code{tempname}, |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2755 it is possible, though relatively unlikely, that it will not be available |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2756 by the time your program attempts to open it. If this is a concern, |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2757 see @code{tmpfile}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2758 @seealso{mkstemp, tempdir, P_tmpdir, tmpfile} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2759 @end deftypefn */) |
1802 | 2760 { |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20805
diff
changeset
|
2761 int nargin = args.length (); |
2936 | 2762 |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20805
diff
changeset
|
2763 if (nargin > 2) |
5823 | 2764 print_usage (); |
1802 | 2765 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2766 std::string dir; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2767 |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20805
diff
changeset
|
2768 if (nargin > 0) |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2769 dir = args(0).xstring_value ("tempname: DIR must be a string"); |
22511
1e81abd0314a
tempname: respect the value of $TMPDIR if set, be consistent with tempdir
Mike Miller <mtmiller@octave.org>
parents:
22489
diff
changeset
|
2770 else |
1e81abd0314a
tempname: respect the value of $TMPDIR if set, be consistent with tempdir
Mike Miller <mtmiller@octave.org>
parents:
22489
diff
changeset
|
2771 dir = octave::sys::env::getenv ("TMPDIR"); |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2772 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2773 std::string pfx ("oct-"); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2774 |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20805
diff
changeset
|
2775 if (nargin > 1) |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2776 pfx = args(1).xstring_value ("tempname: PREFIX must be a string"); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2777 |
21733
cb0fdd941d84
use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
2778 return ovl (octave::sys::tempnam (dir, pfx)); |
1802 | 2779 } |
2780 | |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2781 /* |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2782 %!test |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2783 %! if (ispc ()) |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2784 %! envname = "TMP"; |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2785 %! else |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2786 %! envname = "TMPDIR"; |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2787 %! endif |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2788 %! envdir = getenv (envname); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2789 %! unsetenv (envname); |
21457
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2790 %! ## Strip trailing file separators from P_tmpdir |
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2791 %! def_tmpdir = P_tmpdir; |
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2792 %! while (length (def_tmpdir) > 2 && strfind (filesep ("all"), def_tmpdir(end))) |
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2793 %! def_tmpdir(end) = []; |
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2794 %! endwhile |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2795 %! unwind_protect |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2796 %! ## Test 0-argument form |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2797 %! fname = tempname (); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2798 %! [tmpdir, tmpfname] = fileparts (fname); |
21457
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2799 %! assert (tmpdir, def_tmpdir); |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2800 %! assert (tmpfname (1:4), "oct-"); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2801 %! ## Test 1-argument form |
21457
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2802 %! tmp_tmpdir = [def_tmpdir filesep() substr(tmpfname, -5)]; |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2803 %! mkdir (tmp_tmpdir) || error ("Unable to create tmp dir"); |
21457
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2804 %! setenv (envname, def_tmpdir); |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2805 %! fname = tempname (tmp_tmpdir); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2806 %! [tmpdir, tmpfname] = fileparts (fname); |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2807 %! assert (tmpdir, tmp_tmpdir); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2808 %! assert (tmpfname (1:4), "oct-"); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2809 %! ## Test 1-argument form w/null tmpdir |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2810 %! fname = tempname (""); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2811 %! [tmpdir, tmpfname] = fileparts (fname); |
21457
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2812 %! assert (tmpdir, def_tmpdir); |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2813 %! assert (tmpfname (1:4), "oct-"); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2814 %! ## Test 2-argument form |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2815 %! fname = tempname (tmp_tmpdir, "pfx-"); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2816 %! [tmpdir, tmpfname] = fileparts (fname); |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2817 %! assert (tmpdir, tmp_tmpdir); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2818 %! assert (tmpfname (1:4), "pfx-"); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2819 %! ## Test 2-argument form w/null prefix |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2820 %! fname = tempname (tmp_tmpdir, ""); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2821 %! [tmpdir, tmpfname] = fileparts (fname); |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2822 %! assert (tmpdir, tmp_tmpdir); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2823 %! assert (tmpfname (1:4), "file"); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2824 %! unwind_protect_cleanup |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2825 %! rmdir (tmp_tmpdir); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2826 %! if (isempty (envdir)) |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2827 %! unsetenv (envname); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2828 %! else |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2829 %! setenv (envname, envdir); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2830 %! endif |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2831 %! end_unwind_protect |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2832 */ |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2833 |
4326 | 2834 DEFUN (tmpfile, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2835 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2836 @deftypefn {} {[@var{fid}, @var{msg}] =} tmpfile () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2837 Return the file ID corresponding to a new temporary file with a unique |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2838 name. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2839 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2840 The file is opened in binary read/write (@qcode{"w+b"}) mode and will be |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2841 deleted automatically when it is closed or when Octave exits. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2842 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2843 If successful, @var{fid} is a valid file ID and @var{msg} is an empty |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2844 string. Otherwise, @var{fid} is -1 and @var{msg} contains a |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2845 system-dependent error message. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2846 @seealso{tempname, mkstemp, tempdir, P_tmpdir} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2847 @end deftypefn */) |
4326 | 2848 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2849 if (args.length () != 0) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2850 print_usage (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2851 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2852 octave_value_list retval; |
4326 | 2853 |
21991
80659e58609f
provide wrapper for tmpfile (bug #48337)
John W. Eaton <jwe@octave.org>
parents:
21966
diff
changeset
|
2854 FILE *fid = octave_tmpfile_wrapper (); |
4326 | 2855 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2856 if (fid) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2857 { |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2858 std::string nm; |
4326 | 2859 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2860 std::ios::openmode md = fopen_mode_to_ios_mode ("w+b"); |
4326 | 2861 |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
22837
diff
changeset
|
2862 octave::stream s = octave_stdiostream::create (nm, fid, md); |
4326 | 2863 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2864 if (! s) |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2865 error ("tmpfile: failed to create octave_stdiostream object"); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2866 |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
22837
diff
changeset
|
2867 retval = ovl (octave::stream_list::insert (s), ""); |
4326 | 2868 } |
2869 else | |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2870 { |
21942
aab79a1885cc
limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents:
21919
diff
changeset
|
2871 retval = ovl (-1, std::strerror (errno)); |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2872 } |
4326 | 2873 |
2874 return retval; | |
2875 } | |
2876 | |
2877 DEFUN (mkstemp, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2878 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2879 @deftypefn {} {[@var{fid}, @var{name}, @var{msg}] =} mkstemp ("@var{template}") |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2880 @deftypefnx {} {[@var{fid}, @var{name}, @var{msg}] =} mkstemp ("@var{template}", @var{delete}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2881 Return the file descriptor @var{fid} corresponding to a new temporary file |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2882 with a unique name created from @var{template}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2883 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2884 The last six characters of @var{template} must be @qcode{"XXXXXX"} and |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2885 these are replaced with a string that makes the filename unique. The file |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2886 is then created with mode read/write and permissions that are system |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2887 dependent (on GNU/Linux systems, the permissions will be 0600 for versions |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2888 of glibc 2.0.7 and later). The file is opened in binary mode and with the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2889 @w{@code{O_EXCL}} flag. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2890 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2891 If the optional argument @var{delete} is supplied and is true, the file will |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2892 be deleted automatically when Octave exits. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2893 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2894 If successful, @var{fid} is a valid file ID, @var{name} is the name of the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2895 file, and @var{msg} is an empty string. Otherwise, @var{fid} is -1, |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2896 @var{name} is empty, and @var{msg} contains a system-dependent error |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2897 message. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2898 @seealso{tempname, tempdir, P_tmpdir, tmpfile, fopen} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2899 @end deftypefn */) |
4326 | 2900 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2901 int nargin = args.length (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2902 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2903 if (nargin < 1 || nargin > 2) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2904 print_usage (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2905 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2906 std::string tmpl8 = args(0).xstring_value ("mkstemp: TEMPLATE argument must be a string"); |
4326 | 2907 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2908 octave_value_list retval = ovl (-1, "", ""); |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2909 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2910 OCTAVE_LOCAL_BUFFER (char, tmp, tmpl8.size () + 1); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2911 strcpy (tmp, tmpl8.c_str ()); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2912 |
21888
00f1249f2483
create wrappers for some gnulib functions
John W. Eaton <jwe@octave.org>
parents:
21852
diff
changeset
|
2913 int fd = octave_mkostemp_wrapper (tmp); |
4326 | 2914 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2915 if (fd < 0) |
4326 | 2916 { |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2917 retval(0) = fd; |
21942
aab79a1885cc
limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents:
21919
diff
changeset
|
2918 retval(2) = std::strerror (errno); |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2919 } |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2920 else |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2921 { |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2922 const char *fopen_mode = "w+b"; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2923 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2924 FILE *fid = fdopen (fd, fopen_mode); |
20581
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2925 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2926 if (! fid) |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2927 { |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2928 retval(0) = -1; |
21942
aab79a1885cc
limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents:
21919
diff
changeset
|
2929 retval(2) = std::strerror (errno); |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2930 } |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2931 else |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2932 { |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2933 std::string nm = tmp; |
20581
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2934 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2935 std::ios::openmode md = fopen_mode_to_ios_mode (fopen_mode); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2936 |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
22837
diff
changeset
|
2937 octave::stream s = octave_stdiostream::create (nm, fid, md); |
20581
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2938 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2939 if (! s) |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2940 error ("mkstemp: failed to create octave_stdiostream object"); |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2941 |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
22837
diff
changeset
|
2942 retval(0) = octave::stream_list::insert (s); |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2943 retval(1) = nm; |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2944 |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2945 if (nargin == 2 && args(1).is_true ()) |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2946 mark_for_deletion (nm); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10259
diff
changeset
|
2947 } |
4326 | 2948 } |
2949 | |
2950 return retval; | |
2951 } | |
2952 | |
20200
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
20198
diff
changeset
|
2953 // FIXME: This routine also exists verbatim in syscalls.cc. |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
20198
diff
changeset
|
2954 // Maybe change to be a general utility routine. |
1400 | 2955 static int |
2956 convert (int x, int ibase, int obase) | |
2957 { | |
2958 int retval = 0; | |
2959 | |
2960 int tmp = x % obase; | |
2961 | |
2962 if (tmp > ibase - 1) | |
20428
7ac907da9fba
Use error() rather than ::error() unless explicitly required.
Rik <rik@octave.org>
parents:
20200
diff
changeset
|
2963 error ("umask: invalid digit"); |
21055
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2964 |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2965 retval = tmp; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2966 int mult = ibase; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2967 while ((x = (x - tmp) / obase)) |
1400 | 2968 { |
21055
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2969 tmp = x % obase; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2970 |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2971 if (tmp > ibase - 1) |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2972 error ("umask: invalid digit"); |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2973 |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2974 retval += mult * tmp; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2975 mult *= ibase; |
1400 | 2976 } |
2977 | |
2978 return retval; | |
2979 } | |
2980 | |
10197
4d433bd2d4dc
attempt to avoid trouble with gnulib #defines in a consistent way
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2981 DEFUNX ("umask", Fumask, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2982 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2983 @deftypefn {} {} umask (@var{mask}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2984 Set the permission mask for file creation. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2985 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2986 The parameter @var{mask} is an integer, interpreted as an octal number. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2987 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2988 If successful, returns the previous value of the mask (as an integer to be |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2989 interpreted as an octal number); otherwise an error message is printed. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2990 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2991 The permission mask is a UNIX concept used when creating new objects on a |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2992 file system such as files, directories, or named FIFOs. The object to be |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2993 created has base permissions in an octal number @var{mode} which are |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2994 modified according to the octal value of @var{mask}. The final permissions |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2995 for the new object are @code{@var{mode} - @var{mask}}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2996 @seealso{fopen, mkdir, mkfifo} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2997 @end deftypefn */) |
1400 | 2998 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2999 if (args.length () != 1) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3000 print_usage (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3001 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3002 int mask = args(0).xint_value ("umask: MASK must be an integer"); |
1400 | 3003 |
20805
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eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3004 if (mask < 0) |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
3005 error ("umask: MASK must be a positive integer value"); |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3006 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
3007 int oct_mask = convert (mask, 8, 10); |
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
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diff
changeset
|
3008 |
21733
cb0fdd941d84
use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
3009 int status = convert (octave::sys::umask (oct_mask), 10, 8); |
1400 | 3010 |
3011 if (status >= 0) | |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
3012 return ovl (status); |
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
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diff
changeset
|
3013 else |
20941
a4f5da7c5463
maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
parents:
20940
diff
changeset
|
3014 return ovl (); |
1400 | 3015 } |
3016 | |
5749 | 3017 static octave_value |
6483 | 3018 const_value (const char *, const octave_value_list& args, int val) |
2189 | 3019 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3020 if (args.length () != 0) |
5823 | 3021 print_usage (); |
5749 | 3022 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3023 return octave_value (val); |
5749 | 3024 } |
3025 | |
3026 DEFUNX ("P_tmpdir", FP_tmpdir, args, , | |
21966
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move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3027 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3028 @deftypefn {} {} P_tmpdir () |
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parents:
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diff
changeset
|
3029 Return the name of the host system's @strong{default} directory for |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3030 temporary files. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3031 |
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move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3032 Programming Note: The value returned by @code{P_tmpdir} is always the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3033 default location. This value may not agree with that returned from |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3034 @code{tempdir} if the user has overridden the default with the @env{TMPDIR} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3035 environment variable. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3036 @seealso{tempdir, tempname, mkstemp, tmpfile} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3037 @end deftypefn */) |
5749 | 3038 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3039 if (args.length () != 0) |
5823 | 3040 print_usage (); |
5749 | 3041 |
21127
df7891224709
maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
3042 return ovl (get_P_tmpdir ()); |
5749 | 3043 } |
2341 | 3044 |
5749 | 3045 // NOTE: the values of SEEK_SET, SEEK_CUR, and SEEK_END have to be |
3046 // this way for Matlab compatibility. | |
3047 | |
3048 DEFUNX ("SEEK_SET", FSEEK_SET, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3049 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
3050 @deftypefn {} {} SEEK_SET () |
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move docstrings in C++ files out of C strings and into comments
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changeset
|
3051 @deftypefnx {} {} SEEK_CUR () |
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move docstrings in C++ files out of C strings and into comments
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parents:
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diff
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|
3052 @deftypefnx {} {} SEEK_END () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3053 Return the numerical value to pass to @code{fseek} to perform one of the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3054 following actions: |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3055 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3056 @table @code |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3057 @item SEEK_SET |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3058 Position file relative to the beginning. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3059 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3060 @item SEEK_CUR |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3061 Position file relative to the current position. |
112b20240c87
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parents:
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diff
changeset
|
3062 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3063 @item SEEK_END |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3064 Position file relative to the end. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3065 @end table |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3066 @seealso{fseek} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3067 @end deftypefn */) |
5749 | 3068 { |
3069 return const_value ("SEEK_SET", args, -1); | |
3070 } | |
2189 | 3071 |
5749 | 3072 DEFUNX ("SEEK_CUR", FSEEK_CUR, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3073 doc: /* -*- texinfo -*- |
112b20240c87
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diff
changeset
|
3074 @deftypefn {} {} SEEK_CUR () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3075 Return the numerical value to pass to @code{fseek} to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3076 position the file pointer relative to the current position. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3077 @seealso{SEEK_SET, SEEK_END} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3078 @end deftypefn */) |
5749 | 3079 { |
3080 return const_value ("SEEK_CUR", args, 0); | |
3081 } | |
2189 | 3082 |
5749 | 3083 DEFUNX ("SEEK_END", FSEEK_END, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3084 doc: /* -*- texinfo -*- |
112b20240c87
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
3085 @deftypefn {} {} SEEK_END () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3086 Return the numerical value to pass to @code{fseek} to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3087 position the file pointer relative to the end of the file. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3088 @seealso{SEEK_SET, SEEK_CUR} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
3089 @end deftypefn */) |
5749 | 3090 { |
3091 return const_value ("SEEK_END", args, 1); | |
3092 } | |
3093 | |
3094 static octave_value | |
6483 | 3095 const_value (const char *, const octave_value_list& args, |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10259
diff
changeset
|
3096 const octave_value& val) |
5749 | 3097 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3098 if (args.length () != 0) |
5823 | 3099 print_usage (); |
5749 | 3100 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3101 return octave_value (val); |
5749 | 3102 } |
3103 | |
3104 DEFUNX ("stdin", Fstdin, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3105 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3106 @deftypefn {} {} stdin () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
3107 Return the numeric value corresponding to the standard input stream. |
112b20240c87
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21942
diff
changeset
|
3108 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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21942
diff
changeset
|
3109 When Octave is used interactively, stdin is filtered through the command |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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21942
diff
changeset
|
3110 line editing functions. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3111 @seealso{stdout, stderr} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
21942
diff
changeset
|
3112 @end deftypefn */) |
5749 | 3113 { |
3114 return const_value ("stdin", args, stdin_file); | |
3115 } | |
2189 | 3116 |
5749 | 3117 DEFUNX ("stdout", Fstdout, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
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|
3118 doc: /* -*- texinfo -*- |
112b20240c87
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diff
changeset
|
3119 @deftypefn {} {} stdout () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3120 Return the numeric value corresponding to the standard output stream. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3121 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3122 Data written to the standard output is normally filtered through the pager. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
3123 @seealso{stdin, stderr} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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21942
diff
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|
3124 @end deftypefn */) |
5749 | 3125 { |
3126 return const_value ("stdout", args, stdout_file); | |
3127 } | |
2189 | 3128 |
5749 | 3129 DEFUNX ("stderr", Fstderr, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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21942
diff
changeset
|
3130 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
3131 @deftypefn {} {} stderr () |
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move docstrings in C++ files out of C strings and into comments
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diff
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|
3132 Return the numeric value corresponding to the standard error stream. |
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move docstrings in C++ files out of C strings and into comments
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diff
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|
3133 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3134 Even if paging is turned on, the standard error is not sent to the pager. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3135 It is useful for error messages and prompts. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
3136 @seealso{stdin, stdout} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
3137 @end deftypefn */) |
5749 | 3138 { |
3139 return const_value ("stderr", args, stderr_file); | |
2189 | 3140 } |