Mercurial > octave
annotate libinterp/corefcn/file-io.cc @ 22407:34ce5be04942
maint: Style check C++ code in libinterp/.
* build-env.h, build-env.in.cc, builtins.h, Cell.cc, Cell.h, __contourc__.cc,
__dispatch__.cc, __dsearchn__.cc, __ilu__.cc, __lin_interpn__.cc, __luinc__.cc,
__magick_read__.cc, __pchip_deriv__.cc, __qp__.cc, balance.cc,
base-text-renderer.h, besselj.cc, bitfcns.cc, bsxfun.cc, c-file-ptr-stream.cc,
c-file-ptr-stream.h, call-stack.cc, call-stack.h, cdisplay.c, cdisplay.h,
cellfun.cc, coct-hdf5-types.c, comment-list.cc, comment-list.h, conv2.cc,
daspk.cc, dasrt.cc, dassl.cc, data.cc, data.h, debug.cc, debug.h, defaults.cc,
defaults.in.h, defun-dld.h, defun-int.h, defun.h, det.cc, dirfns.cc, dirfns.h,
display.cc, display.h, dlmread.cc, dynamic-ld.cc, dynamic-ld.h, eig.cc,
error.cc, error.h, errwarn.h, event-queue.cc, event-queue.h, fft.cc, fft2.cc,
fftn.cc, file-io.cc, file-io.h, filter.cc, find.cc, ft-text-renderer.cc,
ft-text-renderer.h, gammainc.cc, gcd.cc, getgrent.cc, getpwent.cc, givens.cc,
gl-render.cc, gl-render.h, gl2ps-print.cc, gl2ps-print.h, graphics.cc,
graphics.in.h, gripes.h, gsvd.cc, hash.cc, help.cc, help.h, hess.cc,
hex2num.cc, hook-fcn.cc, hook-fcn.h, input.cc, input.h, interpreter.cc,
interpreter.h, inv.cc, jit-ir.cc, jit-ir.h, jit-typeinfo.cc, jit-typeinfo.h,
jit-util.cc, jit-util.h, kron.cc, load-path.cc, load-path.h, load-save.cc,
load-save.h, lookup.cc, ls-ascii-helper.cc, ls-ascii-helper.h, ls-hdf5.cc,
ls-hdf5.h, ls-mat-ascii.cc, ls-mat-ascii.h, ls-mat4.cc, ls-mat4.h, ls-mat5.h,
ls-oct-binary.cc, ls-oct-binary.h, ls-oct-text.cc, ls-oct-text.h, ls-utils.cc,
ls-utils.h, lsode.cc, lu.cc, matrix_type.cc, max.cc, mex.cc, mex.h, mexproto.h,
mgorth.cc, mxarray.in.h, nproc.cc, oct-errno.h, oct-errno.in.cc, oct-fstrm.cc,
oct-fstrm.h, oct-handle.h, oct-hdf5-types.cc, oct-hdf5-types.h, oct-hdf5.h,
oct-hist.cc, oct-hist.h, oct-iostrm.cc, oct-iostrm.h, oct-lvalue.cc,
oct-lvalue.h, oct-map.h, oct-obj.h, oct-opengl.h, oct-prcstrm.cc,
oct-prcstrm.h, oct-procbuf.cc, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc,
oct-stream.h, oct-strstrm.cc, oct-strstrm.h, oct.h, octave-default-image.h,
octave-link.h, octave-preserve-stream-state.h, ordschur.cc, pager.cc, pager.h,
pinv.cc, pr-output.cc, pr-output.h, procstream.cc, procstream.h, profiler.h,
psi.cc, pt-jit.cc, pt-jit.h, quad.cc, quadcc.cc, qz.cc, rand.cc, rcond.cc,
regexp.cc, schur.cc, sighandlers.cc, sighandlers.h, sparse-xdiv.cc,
sparse-xdiv.h, sparse-xpow.cc, sparse-xpow.h, sparse.cc, spparms.cc, sqrtm.cc,
str2double.cc, strfind.cc, strfns.cc, sub2ind.cc, svd.cc, sylvester.cc,
symtab.cc, symtab.h, syscalls.cc, sysdep.cc, sysdep.h, text-renderer.cc,
text-renderer.h, time.cc, toplev.cc, toplev.h, tril.cc, tsearch.cc, txt-eng.cc,
txt-eng.h, typecast.cc, urlwrite.cc, utils.cc, utils.h, variables.cc,
variables.h, workspace-element.h, xdiv.cc, xdiv.h, xnorm.cc, xnorm.h, xpow.cc,
xpow.h, zfstream.cc, zfstream.h, deprecated-config.h, __delaunayn__.cc,
__eigs__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__init_gnuplot__.cc, __osmesa_print__.cc, __voronoi__.cc, amd.cc,
audiodevinfo.cc, audioread.cc, ccolamd.cc, chol.cc, colamd.cc, convhulln.cc,
dmperm.cc, fftw.cc, gzip.cc, oct-qhull.h, qr.cc, symbfact.cc, symrcm.cc,
liboctinterp-build-info.h, liboctinterp-build-info.in.cc, ov-base-diag.h,
ov-base-int.cc, ov-base-int.h, ov-base-mat.cc, ov-base-mat.h, ov-base-scalar.h,
ov-base-sparse.cc, ov-base-sparse.h, ov-base.cc, ov-base.h, ov-bool-mat.cc,
ov-bool-mat.h, ov-bool-sparse.cc, ov-bool-sparse.h, ov-bool.cc, ov-bool.h,
ov-builtin.cc, ov-builtin.h, ov-cell.cc, ov-cell.h, ov-ch-mat.cc, ov-ch-mat.h,
ov-class.cc, ov-class.h, ov-classdef.cc, ov-classdef.h, ov-colon.cc,
ov-colon.h, ov-complex.cc, ov-complex.h, ov-cs-list.h, ov-cx-diag.cc,
ov-cx-diag.h, ov-cx-mat.cc, ov-cx-mat.h, ov-cx-sparse.cc, ov-cx-sparse.h,
ov-dld-fcn.cc, ov-dld-fcn.h, ov-fcn-handle.cc, ov-fcn-handle.h,
ov-fcn-inline.cc, ov-fcn-inline.h, ov-fcn.cc, ov-fcn.h, ov-float.cc,
ov-float.h, ov-flt-complex.cc, ov-flt-complex.h, ov-flt-cx-diag.cc,
ov-flt-cx-diag.h, ov-flt-cx-mat.cc, ov-flt-cx-mat.h, ov-flt-re-diag.cc,
ov-flt-re-diag.h, ov-flt-re-mat.cc, ov-flt-re-mat.h, ov-int-traits.h,
ov-int16.cc, ov-int16.h, ov-int32.cc, ov-int32.h, ov-int64.cc, ov-int64.h,
ov-int8.cc, ov-int8.h, ov-intx.h, ov-java.cc, ov-java.h, ov-lazy-idx.cc,
ov-lazy-idx.h, ov-mex-fcn.cc, ov-mex-fcn.h, ov-null-mat.cc, ov-null-mat.h,
ov-oncleanup.cc, ov-oncleanup.h, ov-perm.cc, ov-perm.h, ov-range.cc,
ov-range.h, ov-re-diag.cc, ov-re-diag.h, ov-re-mat.cc, ov-re-mat.h,
ov-re-sparse.cc, ov-re-sparse.h, ov-scalar.cc, ov-scalar.h, ov-str-mat.cc,
ov-str-mat.h, ov-struct.cc, ov-struct.h, ov-typeinfo.cc, ov-typeinfo.h,
ov-uint16.cc, ov-uint16.h, ov-uint32.cc, ov-uint32.h, ov-uint64.cc,
ov-uint64.h, ov-uint8.cc, ov-uint8.h, ov-usr-fcn.cc, ov-usr-fcn.h, ov.h,
ovl.cc, ovl.h, octave.cc, octave.h, op-b-b.cc, op-b-bm.cc, op-b-sbm.cc,
op-bm-b.cc, op-bm-bm.cc, op-bm-sbm.cc, op-cdm-cdm.cc, op-cell.cc, op-chm.cc,
op-class.cc, op-cm-cm.cc, op-cm-cs.cc, op-cm-m.cc, op-cm-pm.cc, op-cm-s.cc,
op-cm-scm.cc, op-cm-sm.cc, op-cs-cm.cc, op-cs-cs.cc, op-cs-m.cc, op-cs-s.cc,
op-cs-scm.cc, op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc,
op-dm-template.cc, op-dms-template.cc, op-fcdm-fcdm.cc, op-fcm-fcm.cc,
op-fcm-fcs.cc, op-fcm-fm.cc, op-fcm-fs.cc, op-fcm-pm.cc, op-fcn.cc,
op-fcs-fcm.cc, op-fcs-fcs.cc, op-fcs-fm.cc, op-fcs-fs.cc, op-fdm-fdm.cc,
op-fm-fcm.cc, op-fm-fcs.cc, op-fm-fm.cc, op-fm-fs.cc, op-fm-pm.cc,
op-fs-fcm.cc, op-fs-fcs.cc, op-fs-fm.cc, op-fs-fs.cc, op-i16-i16.cc,
op-i32-i32.cc, op-i64-i64.cc, op-i8-i8.cc, op-int-concat.cc, op-int.h,
op-m-cm.cc, op-m-cs.cc, op-m-m.cc, op-m-pm.cc, op-m-s.cc, op-m-scm.cc,
op-m-sm.cc, op-pm-cm.cc, op-pm-fcm.cc, op-pm-fm.cc, op-pm-m.cc, op-pm-pm.cc,
op-pm-scm.cc, op-pm-sm.cc, op-pm-template.cc, op-range.cc, op-s-cm.cc,
op-s-cs.cc, op-s-m.cc, op-s-s.cc, op-s-scm.cc, op-s-sm.cc, op-sbm-b.cc,
op-sbm-bm.cc, op-sbm-sbm.cc, op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc,
op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc,
op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc, op-str-m.cc, op-str-s.cc, op-str-str.cc,
op-struct.cc, op-ui16-ui16.cc, op-ui32-ui32.cc, op-ui64-ui64.cc, op-ui8-ui8.cc,
ops.h, options-usage.h, lex.h, parse.h, pt-all.h, pt-arg-list.cc,
pt-arg-list.h, pt-array-list.h, pt-assign.cc, pt-assign.h, pt-binop.cc,
pt-binop.h, pt-bp.cc, pt-bp.h, pt-cbinop.cc, pt-cbinop.h, pt-cell.cc,
pt-cell.h, pt-check.cc, pt-check.h, pt-classdef.cc, pt-classdef.h, pt-cmd.cc,
pt-cmd.h, pt-colon.cc, pt-colon.h, pt-const.cc, pt-const.h, pt-decl.cc,
pt-decl.h, pt-eval.cc, pt-eval.h, pt-except.cc, pt-except.h, pt-exp.cc,
pt-exp.h, pt-fcn-handle.cc, pt-fcn-handle.h, pt-funcall.cc, pt-funcall.h,
pt-id.cc, pt-id.h, pt-idx.cc, pt-idx.h, pt-jump.cc, pt-jump.h, pt-loop.cc,
pt-loop.h, pt-mat.cc, pt-mat.h, pt-misc.cc, pt-misc.h, pt-pr-code.cc,
pt-pr-code.h, pt-select.cc, pt-select.h, pt-stmt.cc, pt-stmt.h, pt-unop.cc,
pt-unop.h, pt-walk.h, pt.cc, pt.h, token.cc, token.h, Array-jit.cc,
Array-tc.cc, version.cc, version.in.h:
Style check C++ code in libinterp/
author | Rik <rik@octave.org> |
---|---|
date | Tue, 30 Aug 2016 21:46:47 -0700 |
parents | d0562b3159c7 |
children | 93ea313301f9 |
rev | line source |
---|---|
1 | 1 /* |
2 | |
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3 Copyright (C) 1993-2016 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 | |
8 under the terms of the GNU General Public License as published by the | |
7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
10 option) any later version. | |
1 | 11 |
12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 for more details. | |
16 | |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
19 <http://www.gnu.org/licenses/>. | |
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 | |
5102 | 54 #include "error.h" |
2926 | 55 #include "file-ops.h" |
6159 | 56 #include "file-stat.h" |
5102 | 57 #include "lo-ieee.h" |
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58 #include "mkostemp-wrapper.h" |
6159 | 59 #include "oct-env.h" |
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60 #include "oct-locbuf.h" |
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61 #include "tmpfile-wrapper.h" |
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62 #include "unistd-wrappers.h" |
2926 | 63 |
1352 | 64 #include "defun.h" |
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65 #include "errwarn.h" |
6108 | 66 #include "file-io.h" |
6159 | 67 #include "load-path.h" |
2095 | 68 #include "oct-fstrm.h" |
69 #include "oct-iostrm.h" | |
1377 | 70 #include "oct-map.h" |
2095 | 71 #include "oct-prcstrm.h" |
72 #include "oct-stream.h" | |
73 #include "oct-strstrm.h" | |
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74 #include "ov.h" |
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75 #include "ovl.h" |
1 | 76 #include "pager.h" |
444 | 77 #include "sysdep.h" |
1352 | 78 #include "utils.h" |
2370 | 79 #include "variables.h" |
1583 | 80 |
2902 | 81 static octave_value stdin_file; |
82 static octave_value stdout_file; | |
83 static octave_value stderr_file; | |
84 | |
4468 | 85 static octave_stream stdin_stream; |
86 static octave_stream stdout_stream; | |
87 static octave_stream stderr_stream; | |
88 | |
1 | 89 void |
164 | 90 initialize_file_io (void) |
1 | 91 { |
4468 | 92 stdin_stream = octave_istream::create (&std::cin, "stdin"); |
2116 | 93 |
3531 | 94 // This uses octave_stdout (see pager.h), not std::cout so that Octave's |
2116 | 95 // standard output stream will pass through the pager. |
96 | |
4468 | 97 stdout_stream = octave_ostream::create (&octave_stdout, "stdout"); |
2116 | 98 |
4468 | 99 stderr_stream = octave_ostream::create (&std::cerr, "stderr"); |
1 | 100 |
2902 | 101 stdin_file = octave_stream_list::insert (stdin_stream); |
102 stdout_file = octave_stream_list::insert (stdout_stream); | |
103 stderr_file = octave_stream_list::insert (stderr_stream); | |
1 | 104 } |
105 | |
2095 | 106 void |
107 close_files (void) | |
1 | 108 { |
2095 | 109 octave_stream_list::clear (); |
110 } | |
636 | 111 |
5102 | 112 // List of files to delete when we exit or crash. |
113 // | |
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114 // FIXME: this should really be static, |
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115 // but that causes problems on some systems. |
5102 | 116 std::stack <std::string> tmp_files; |
117 | |
118 void | |
119 mark_for_deletion (const std::string& file) | |
120 { | |
121 tmp_files.push (file); | |
122 } | |
123 | |
124 void | |
125 cleanup_tmp_files (void) | |
126 { | |
127 while (! tmp_files.empty ()) | |
128 { | |
129 std::string filename = tmp_files.top (); | |
130 tmp_files.pop (); | |
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131 octave_unlink_wrapper (filename.c_str ()); |
5102 | 132 } |
133 } | |
134 | |
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135 static void |
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136 normalize_fopen_mode (std::string& mode, bool& use_zlib) |
1 | 137 { |
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138 use_zlib = false; |
896 | 139 |
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140 if (! mode.empty ()) |
368 | 141 { |
2095 | 142 // Could probably be faster, but does it really matter? |
1766 | 143 |
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144 // Accept 'W', 'R', and 'A' as 'w', 'r', and 'a' but we warn about |
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145 // them because Matlab says they don't perform "automatic |
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146 // flushing" but we don't know precisely what action that implies. |
7078 | 147 |
148 size_t pos = mode.find ('W'); | |
149 | |
8021 | 150 if (pos != std::string::npos) |
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151 { |
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152 warning_with_id ("Octave:fopen-mode", |
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153 "fopen: treating mode \"W\" as equivalent to \"w\""); |
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154 mode[pos] = 'w'; |
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155 } |
7078 | 156 |
157 pos = mode.find ('R'); | |
158 | |
8021 | 159 if (pos != std::string::npos) |
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160 { |
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161 warning_with_id ("Octave:fopen-mode", |
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162 "fopen: treating mode \"R\" as equivalent to \"r\""); |
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163 mode[pos] = 'r'; |
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164 } |
7078 | 165 |
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166 pos = mode.find ('A'); |
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167 |
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168 if (pos != std::string::npos) |
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169 { |
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170 warning_with_id ("Octave:fopen-mode", |
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171 "fopen: treating mode \"A\" as equivalent to \"a\""); |
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172 mode[pos] = 'a'; |
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173 } |
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174 |
7078 | 175 pos = mode.find ('z'); |
5325 | 176 |
8021 | 177 if (pos != std::string::npos) |
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178 { |
5325 | 179 #if defined (HAVE_ZLIB) |
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180 use_zlib = true; |
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181 mode.erase (pos, 1); |
5325 | 182 #else |
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183 err_disabled_feature ("", "gzipped files (zlib)"); |
5325 | 184 #endif |
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185 } |
5325 | 186 |
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187 // Use binary mode if 't' is not specified, but don't add |
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188 // 'b' if it is already present. |
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189 |
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190 size_t bpos = mode.find ('b'); |
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191 size_t tpos = mode.find ('t'); |
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192 |
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193 if (bpos == std::string::npos && tpos == std::string::npos) |
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194 mode += 'b'; |
1 | 195 } |
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196 } |
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197 |
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198 static std::ios::openmode |
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199 fopen_mode_to_ios_mode (const std::string& mode) |
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200 { |
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201 std::ios::openmode retval = std::ios::in; |
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202 |
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203 if (mode == "rt") |
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204 retval = std::ios::in; |
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205 else if (mode == "wt") |
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206 retval = std::ios::out | std::ios::trunc; |
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207 else if (mode == "at") |
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208 retval = std::ios::out | std::ios::app; |
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209 else if (mode == "r+t" || mode == "rt+") |
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210 retval = std::ios::in | std::ios::out; |
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211 else if (mode == "w+t" || mode == "wt+") |
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212 retval = std::ios::in | std::ios::out | std::ios::trunc; |
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213 else if (mode == "a+t" || mode == "at+") |
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214 retval = std::ios::in | std::ios::out | std::ios::app; |
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215 else if (mode == "rb" || mode == "r") |
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216 retval = std::ios::in | std::ios::binary; |
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217 else if (mode == "wb" || mode == "w") |
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218 retval = std::ios::out | std::ios::trunc | std::ios::binary; |
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219 else if (mode == "ab" || mode == "a") |
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220 retval = std::ios::out | std::ios::app | std::ios::binary; |
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221 else if (mode == "r+b" || mode == "rb+" || mode == "r+") |
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222 retval = std::ios::in | std::ios::out | std::ios::binary; |
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223 else if (mode == "w+b" || mode == "wb+" || mode == "w+") |
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224 retval = (std::ios::in | std::ios::out | std::ios::trunc |
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225 | std::ios::binary); |
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226 else if (mode == "a+b" || mode == "ab+" || mode == "a+") |
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227 retval = (std::ios::in | std::ios::out | std::ios::app |
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228 | std::ios::binary); |
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229 else |
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230 error ("invalid mode specified"); |
1 | 231 |
232 return retval; | |
233 } | |
234 | |
1957 | 235 DEFUN (fclose, args, , |
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236 doc: /* -*- texinfo -*- |
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237 @deftypefn {} {} fclose (@var{fid}) |
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238 @deftypefnx {} {} fclose ("all") |
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239 @deftypefnx {} {@var{status} =} fclose ("all") |
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240 Close the file specified by the file descriptor @var{fid}. |
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241 |
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242 If successful, @code{fclose} returns 0, otherwise, it returns -1. The |
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243 second form of the @code{fclose} call closes all open files except |
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244 @code{stdin}, @code{stdout}, @code{stderr}, and any FIDs associated |
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245 with gnuplot. |
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246 @seealso{fopen, fflush, freport} |
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247 @end deftypefn */) |
529 | 248 { |
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249 if (args.length () != 1) |
5823 | 250 print_usage (); |
1 | 251 |
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252 return ovl (octave_stream_list::remove (args(0), "fclose")); |
1 | 253 } |
254 | |
5144 | 255 DEFUN (fclear, args, , |
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256 doc: /* -*- texinfo -*- |
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257 @deftypefn {} {} fclear (@var{fid}) |
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258 Clear the stream state for the file specified by the file descriptor |
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259 @var{fid}. |
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260 @seealso{ferror, fopen} |
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261 @end deftypefn */) |
5144 | 262 { |
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263 if (args.length () != 1) |
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264 print_usage (); |
5144 | 265 |
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266 int fid = octave_stream_list::get_file_number (args(0)); |
5144 | 267 |
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268 octave_stream os = octave_stream_list::lookup (fid, "fclear"); |
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269 |
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270 os.clearerr (); |
5144 | 271 |
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272 return ovl (); |
5144 | 273 } |
274 | |
1957 | 275 DEFUN (fflush, args, , |
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276 doc: /* -*- texinfo -*- |
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277 @deftypefn {} {} fflush (@var{fid}) |
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278 Flush output to file descriptor @var{fid}. |
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279 |
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280 @code{fflush} returns 0 on success and an OS dependent error value |
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281 (@minus{}1 on Unix) on error. |
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282 |
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283 Programming Note: Flushing is useful for ensuring that all pending output |
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284 makes it to the screen before some other event occurs. For example, it is |
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285 always a good idea to flush the standard output stream before calling |
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286 @code{input}. |
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287 @seealso{fopen, fclose} |
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288 @end deftypefn */) |
1181 | 289 { |
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290 if (args.length () != 1) |
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291 print_usage (); |
1181 | 292 |
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293 octave_value retval = -1; |
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294 |
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295 // FIXME: any way to avoid special case for stdout? |
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296 int fid = octave_stream_list::get_file_number (args(0)); |
2095 | 297 |
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298 if (fid == 1) |
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299 { |
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300 flush_octave_stdout (); |
2609 | 301 |
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302 retval = 0; |
2095 | 303 } |
304 else | |
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305 { |
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306 octave_stream os = octave_stream_list::lookup (fid, "fflush"); |
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307 |
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308 retval = os.flush (); |
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309 } |
1181 | 310 |
311 return retval; | |
312 } | |
313 | |
2095 | 314 DEFUN (fgetl, args, , |
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315 doc: /* -*- texinfo -*- |
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316 @deftypefn {} {@var{str} =} fgetl (@var{fid}) |
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317 @deftypefnx {} {@var{str} =} fgetl (@var{fid}, @var{len}) |
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318 Read characters from a file, stopping after a newline, or EOF, |
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319 or @var{len} characters have been read. |
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320 |
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321 The characters read, excluding the possible trailing newline, are returned |
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322 as a string. |
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323 |
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324 If @var{len} is omitted, @code{fgetl} reads until the next newline |
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325 character. |
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326 |
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327 If there are no more characters to read, @code{fgetl} returns @minus{}1. |
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328 |
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329 To read a line and return the terminating newline see @code{fgets}. |
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330 @seealso{fgets, fscanf, fread, fopen} |
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331 @end deftypefn */) |
1339 | 332 { |
4468 | 333 static std::string who = "fgetl"; |
334 | |
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335 int nargin = args.length (); |
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336 |
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337 if (nargin < 1 || nargin > 2) |
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338 print_usage (); |
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339 |
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340 octave_stream os = octave_stream_list::lookup (args(0), who); |
1339 | 341 |
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342 octave_value len_arg = (nargin == 2) ? args(1) : octave_value (); |
2095 | 343 |
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344 bool err = false; |
2095 | 345 |
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346 std::string tmp = os.getl (len_arg, err, who); |
2095 | 347 |
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348 if (! err) |
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349 return ovl (tmp, tmp.length ()); |
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350 else |
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351 return ovl (-1, 0); |
1339 | 352 } |
353 | |
2095 | 354 DEFUN (fgets, args, , |
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355 doc: /* -*- texinfo -*- |
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356 @deftypefn {} {@var{str} =} fgets (@var{fid}) |
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357 @deftypefnx {} {@var{str} =} fgets (@var{fid}, @var{len}) |
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358 Read characters from a file, stopping after a newline, or EOF, |
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359 or @var{len} characters have been read. |
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360 |
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361 The characters read, including the possible trailing newline, are returned |
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362 as a string. |
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363 |
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364 If @var{len} is omitted, @code{fgets} reads until the next newline |
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365 character. |
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366 |
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367 If there are no more characters to read, @code{fgets} returns @minus{}1. |
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368 |
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369 To read a line and discard the terminating newline see @code{fgetl}. |
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370 @seealso{fputs, fgetl, fscanf, fread, fopen} |
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371 @end deftypefn */) |
529 | 372 { |
4468 | 373 static std::string who = "fgets"; |
374 | |
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375 int nargin = args.length (); |
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376 |
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377 if (nargin < 1 || nargin > 2) |
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378 print_usage (); |
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379 |
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380 octave_stream os = octave_stream_list::lookup (args(0), who); |
529 | 381 |
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382 octave_value len_arg = (nargin == 2) ? args(1) : octave_value (); |
2095 | 383 |
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384 bool err = false; |
2095 | 385 |
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386 std::string tmp = os.gets (len_arg, err, who); |
2095 | 387 |
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388 if (! err) |
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389 return ovl (tmp, tmp.length ()); |
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390 else |
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391 return ovl (-1.0, 0.0); |
529 | 392 } |
393 | |
9701 | 394 DEFUN (fskipl, args, , |
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395 doc: /* -*- texinfo -*- |
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396 @deftypefn {} {@var{nlines} =} fskipl (@var{fid}) |
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397 @deftypefnx {} {@var{nlines} =} fskipl (@var{fid}, @var{count}) |
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398 @deftypefnx {} {@var{nlines} =} fskipl (@var{fid}, Inf) |
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399 Read and skip @var{count} lines from the file specified by the file |
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400 descriptor @var{fid}. |
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401 |
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402 @code{fskipl} discards characters until an end-of-line is encountered |
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403 exactly @var{count}-times, or until the end-of-file marker is found. |
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404 |
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405 If @var{count} is omitted, it defaults to 1. @var{count} may also be |
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406 @code{Inf}, in which case lines are skipped until the end of the file. |
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407 This form is suitable for counting the number of lines in a file. |
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408 |
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409 Returns the number of lines skipped (end-of-line sequences encountered). |
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410 @seealso{fgetl, fgets, fscanf, fopen} |
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411 @end deftypefn */) |
9701 | 412 { |
413 static std::string who = "fskipl"; | |
414 | |
415 int nargin = args.length (); | |
416 | |
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417 if (nargin < 1 || nargin > 2) |
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418 print_usage (); |
9701 | 419 |
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420 octave_stream os = octave_stream_list::lookup (args(0), who); |
9701 | 421 |
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422 octave_value count_arg = (nargin == 2) ? args(1) : octave_value (); |
9701 | 423 |
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424 bool err = false; |
9701 | 425 |
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426 off_t tmp = os.skipl (count_arg, err, who); |
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427 |
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428 if (! err) |
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429 return ovl (tmp); |
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430 else |
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431 return ovl (); |
9701 | 432 } |
433 | |
3340 | 434 static octave_stream |
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435 do_stream_open (const std::string& name, const std::string& mode_arg, |
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436 const std::string& arch, int& fid) |
1 | 437 { |
3340 | 438 octave_stream retval; |
1 | 439 |
2095 | 440 fid = -1; |
1 | 441 |
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442 std::string mode = mode_arg; |
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443 bool use_zlib = false; |
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444 normalize_fopen_mode (mode, use_zlib); |
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445 |
4036 | 446 std::ios::openmode md = fopen_mode_to_ios_mode (mode); |
1 | 447 |
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448 octave::mach_info::float_format flt_fmt = |
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449 octave::mach_info::string_to_float_format (arch); |
1 | 450 |
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451 std::string fname = octave::sys::file_ops::tilde_expand (name); |
6159 | 452 |
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453 octave::sys::file_stat fs (fname); |
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454 |
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455 if (! (md & std::ios::out)) |
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456 fname = find_data_file_in_load_path ("fopen", fname); |
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457 |
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458 if (! fs.is_dir ()) |
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459 { |
6905 | 460 #if defined (HAVE_ZLIB) |
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461 if (use_zlib) |
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462 { |
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463 FILE *fptr = std::fopen (fname.c_str (), mode.c_str ()); |
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464 |
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465 int fd = fileno (fptr); |
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466 |
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467 gzFile gzf = ::gzdopen (fd, mode.c_str ()); |
5325 | 468 |
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469 if (fptr) |
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470 retval = octave_zstdiostream::create (fname, gzf, fd, |
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471 md, flt_fmt); |
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472 else |
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473 retval.error (std::strerror (errno)); |
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474 } |
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475 else |
5325 | 476 #endif |
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477 { |
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478 FILE *fptr = std::fopen (fname.c_str (), mode.c_str ()); |
5370 | 479 |
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480 retval = octave_stdiostream::create (fname, fptr, md, |
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481 flt_fmt); |
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482 |
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483 if (! fptr) |
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484 retval.error (std::strerror (errno)); |
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485 } |
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486 |
1 | 487 } |
488 | |
2095 | 489 return retval; |
490 } | |
1 | 491 |
3340 | 492 static octave_stream |
2095 | 493 do_stream_open (const octave_value& tc_name, const octave_value& tc_mode, |
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494 const octave_value& tc_arch, const char *fcn, int& fid) |
2095 | 495 { |
3340 | 496 octave_stream retval; |
2095 | 497 |
498 fid = -1; | |
499 | |
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500 std::string name = tc_name.xstring_value ("%s: filename must be a string", fcn); |
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501 std::string mode = tc_mode.xstring_value ("%s: file mode must be a string", fcn); |
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502 std::string arch = tc_arch.xstring_value ("%s: architecture type must be a string", fcn); |
1 | 503 |
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504 retval = do_stream_open (name, mode, arch, fid); |
1 | 505 |
506 return retval; | |
507 } | |
508 | |
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509 DEFUN (fopen, args, nargout, |
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510 doc: /* -*- texinfo -*- |
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511 @deftypefn {} {@var{fid} =} fopen (@var{name}) |
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512 @deftypefnx {} {@var{fid} =} fopen (@var{name}, @var{mode}) |
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513 @deftypefnx {} {@var{fid} =} fopen (@var{name}, @var{mode}, @var{arch}) |
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514 @deftypefnx {} {[@var{fid}, @var{msg}] =} fopen (@dots{}) |
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515 @deftypefnx {} {@var{fid_list} =} fopen ("all") |
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516 @deftypefnx {} {[@var{file}, @var{mode}, @var{arch}] =} fopen (@var{fid}) |
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517 Open a file for low-level I/O or query open files and file descriptors. |
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518 |
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519 The first form of the @code{fopen} function opens the named file with |
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520 the specified mode (read-write, read-only, etc.) and architecture |
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521 interpretation (IEEE big endian, IEEE little endian, etc.), and returns |
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522 an integer value that may be used to refer to the file later. If an |
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523 error occurs, @var{fid} is set to @minus{}1 and @var{msg} contains the |
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524 corresponding system error message. The @var{mode} is a one or two |
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525 character string that specifies whether the file is to be opened for |
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526 reading, writing, or both. |
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527 |
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528 The second form of the @code{fopen} function returns a vector of file ids |
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529 corresponding to all the currently open files, excluding the |
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530 @code{stdin}, @code{stdout}, and @code{stderr} streams. |
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531 |
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532 The third form of the @code{fopen} function returns information about the |
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533 open file given its file id. |
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534 |
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535 For example, |
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536 |
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537 @example |
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538 myfile = fopen ("splat.dat", "r", "ieee-le"); |
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539 @end example |
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540 |
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541 @noindent |
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542 opens the file @file{splat.dat} for reading. If necessary, binary |
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543 numeric values will be read assuming they are stored in IEEE format with |
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544 the least significant bit first, and then converted to the native |
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545 representation. |
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546 |
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547 Opening a file that is already open simply opens it again and returns a |
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548 separate file id. It is not an error to open a file several times, |
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549 though writing to the same file through several different file ids may |
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550 produce unexpected results. |
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551 |
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552 The possible values @samp{mode} may have are |
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553 |
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554 @table @asis |
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555 @item @samp{r} (default) |
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556 Open a file for reading. |
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557 |
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558 @item @samp{w} |
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559 Open a file for writing. The previous contents are discarded. |
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560 |
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561 @item @samp{a} |
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562 Open or create a file for writing at the end of the file. |
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563 |
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564 @item @samp{r+} |
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565 Open an existing file for reading and writing. |
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566 |
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567 @item @samp{w+} |
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568 Open a file for reading or writing. The previous contents are |
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569 discarded. |
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570 |
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571 @item @samp{a+} |
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572 Open or create a file for reading or writing at the end of the |
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573 file. |
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574 @end table |
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575 |
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576 Append a @qcode{"t"} to the mode string to open the file in text mode or a |
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577 @qcode{"b"} to open in binary mode. On Windows and Macintosh systems, |
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578 text mode reading and writing automatically converts linefeeds to the |
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579 appropriate line end character for the system (carriage-return linefeed on |
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580 Windows, carriage-return on Macintosh). The default when no mode is |
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581 specified is binary mode. |
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582 |
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583 Additionally, you may append a @qcode{"z"} to the mode string to open a |
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584 gzipped file for reading or writing. For this to be successful, you |
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585 must also open the file in binary mode. |
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586 |
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587 The parameter @var{arch} is a string specifying the default data format |
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588 for the file. Valid values for @var{arch} are: |
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589 |
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590 @table @asis |
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591 @item @qcode{"native"} or @qcode{"n"} (default) |
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592 The format of the current machine. |
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593 |
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594 @item @qcode{"ieee-be"} or @qcode{"b"} |
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595 IEEE big endian format. |
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596 |
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597 @item @qcode{"ieee-le"} or @qcode{"l"} |
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598 IEEE little endian format. |
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599 @end table |
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600 |
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601 @noindent |
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602 However, conversions are currently only supported for @samp{native}, |
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603 @samp{ieee-be}, and @samp{ieee-le} formats. |
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604 |
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605 When opening a new file that does not yet exist, permissions will be set to |
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606 @code{0666 - @var{umask}}. |
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607 @seealso{fclose, fgets, fgetl, fscanf, fread, fputs, fdisp, fprintf, fwrite, fskipl, fseek, frewind, ftell, feof, ferror, fclear, fflush, freport, umask} |
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608 @end deftypefn */) |
529 | 609 { |
610 int nargin = args.length (); | |
611 | |
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612 if (nargin < 1 || nargin > 3) |
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613 print_usage (); |
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614 |
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615 octave_value_list retval = ovl (-1.0); |
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616 |
2095 | 617 if (nargin == 1) |
618 { | |
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619 if (args(0).is_string ()) |
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620 { |
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621 // If there is only one argument and it is a string but it |
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622 // is not the string "all", we assume it is a file to open |
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623 // with MODE = "r". To open a file called "all", you have |
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624 // to supply more than one argument. |
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625 if (nargout < 2 && args(0).string_value () == "all") |
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626 return octave_stream_list::open_file_numbers (); |
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627 } |
2095 | 628 else |
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629 { |
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630 string_vector tmp = octave_stream_list::get_info (args(0)); |
529 | 631 |
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632 retval = ovl (tmp(0), tmp(1), tmp(2)); |
3263 | 633 |
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634 return retval; |
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635 } |
1 | 636 } |
637 | |
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638 octave_value mode = (nargin == 2 || nargin == 3) |
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639 ? args(1) : octave_value ("r"); |
2095 | 640 |
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641 octave_value arch = (nargin == 3) |
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642 ? args(2) : octave_value ("native"); |
2095 | 643 |
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644 int fid = -1; |
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645 |
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646 octave_stream os = do_stream_open (args(0), mode, arch, "fopen", fid); |
5370 | 647 |
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648 if (os) |
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649 retval = ovl (octave_stream_list::insert (os), ""); |
2095 | 650 else |
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651 { |
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652 int error_number = 0; |
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653 |
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654 retval = ovl (-1.0, os.error (false, error_number)); |
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655 } |
1 | 656 |
657 return retval; | |
658 } | |
659 | |
1957 | 660 DEFUN (freport, args, , |
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661 doc: /* -*- texinfo -*- |
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662 @deftypefn {} {} freport () |
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663 Print a list of which files have been opened, and whether they are open |
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664 for reading, writing, or both. |
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665 |
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666 For example: |
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667 |
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668 @example |
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669 @group |
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670 freport () |
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671 |
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672 @print{} number mode arch name |
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673 @print{} ------ ---- ---- ---- |
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674 @print{} 0 r ieee-le stdin |
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675 @print{} 1 w ieee-le stdout |
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676 @print{} 2 w ieee-le stderr |
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677 @print{} 3 r ieee-le myfile |
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678 @end group |
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679 @end example |
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680 @seealso{fopen, fclose, is_valid_file_id} |
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681 @end deftypefn */) |
1181 | 682 { |
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683 if (args.length () > 0) |
1181 | 684 warning ("freport: ignoring extra arguments"); |
685 | |
2095 | 686 octave_stdout << octave_stream_list::list_open_files (); |
1181 | 687 |
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688 return ovl (); |
1181 | 689 } |
690 | |
4715 | 691 DEFUN (frewind, args, nargout, |
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692 doc: /* -*- texinfo -*- |
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693 @deftypefn {} {} frewind (@var{fid}) |
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694 @deftypefnx {} {@var{status} =} frewind (@var{fid}) |
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695 Move the file pointer to the beginning of the file specified by file |
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696 descriptor @var{fid}. |
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697 |
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698 @code{frewind} returns 0 for success, and -1 if an error is encountered. It |
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699 is equivalent to @code{fseek (@var{fid}, 0, SEEK_SET)}. |
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700 @seealso{fseek, ftell, fopen} |
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701 @end deftypefn */) |
529 | 702 { |
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703 if (args.length () != 1) |
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704 print_usage (); |
506 | 705 |
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706 int result = -1; |
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707 |
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708 octave_stream os = octave_stream_list::lookup (args(0), "frewind"); |
636 | 709 |
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710 result = os.rewind (); |
1 | 711 |
4715 | 712 if (nargout > 0) |
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713 return ovl (result); |
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714 else |
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715 return ovl (); |
1 | 716 } |
717 | |
1957 | 718 DEFUN (fseek, args, , |
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719 doc: /* -*- texinfo -*- |
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720 @deftypefn {} {} fseek (@var{fid}, @var{offset}) |
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721 @deftypefnx {} {} fseek (@var{fid}, @var{offset}, @var{origin}) |
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722 @deftypefnx {} {@var{status} =} fseek (@dots{}) |
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723 Set the file pointer to the location @var{offset} within the file @var{fid}. |
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724 |
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725 The pointer is positioned @var{offset} characters from the @var{origin}, |
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726 which may be one of the predefined variables @w{@code{SEEK_CUR}} (current |
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727 position), @w{@code{SEEK_SET}} (beginning), or @w{@code{SEEK_END}} (end of |
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728 file) or strings @qcode{"cof"}, @qcode{"bof"} or @qcode{"eof"}. If |
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729 @var{origin} is omitted, @w{@code{SEEK_SET}} is assumed. @var{offset} may |
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730 be positive, negative, or zero but not all combinations of @var{origin} and |
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731 @var{offset} can be realized. |
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732 |
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733 @code{fseek} returns 0 on success and -1 on error. |
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734 @seealso{fskipl, frewind, ftell, fopen} |
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735 @end deftypefn */) |
529 | 736 { |
737 int nargin = args.length (); | |
738 | |
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739 if (nargin < 2 || nargin > 3) |
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740 print_usage (); |
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741 |
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742 octave_stream os = octave_stream_list::lookup (args(0), "fseek"); |
1181 | 743 |
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744 octave_value origin_arg = (nargin == 3) ? args(2) : octave_value (-1.0); |
1 | 745 |
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746 return ovl (os.seek (args(1), origin_arg)); |
1 | 747 } |
748 | |
1957 | 749 DEFUN (ftell, args, , |
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750 doc: /* -*- texinfo -*- |
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751 @deftypefn {} {@var{pos} =} ftell (@var{fid}) |
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752 Return the position of the file pointer as the number of characters from the |
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753 beginning of the file specified by file descriptor @var{fid}. |
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754 @seealso{fseek, frewind, feof, fopen} |
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755 @end deftypefn */) |
1181 | 756 { |
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757 if (args.length () != 1) |
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758 print_usage (); |
506 | 759 |
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760 octave_stream os = octave_stream_list::lookup (args(0), "ftell"); |
1 | 761 |
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762 return ovl (os.tell ()); |
1 | 763 } |
764 | |
3737 | 765 DEFUN (fprintf, args, nargout, |
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766 doc: /* -*- texinfo -*- |
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767 @deftypefn {} {} fprintf (@var{fid}, @var{template}, @dots{}) |
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768 @deftypefnx {} {} fprintf (@var{template}, @dots{}) |
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769 @deftypefnx {} {@var{numbytes} =} fprintf (@dots{}) |
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770 This function is equivalent to @code{printf}, except that the output is |
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771 written to the file descriptor @var{fid} instead of @code{stdout}. |
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772 |
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773 If @var{fid} is omitted, the output is written to @code{stdout} making the |
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774 function exactly equivalent to @code{printf}. |
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775 |
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776 The optional output returns the number of bytes written to the file. |
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777 |
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778 Implementation Note: For compatibility with @sc{matlab}, escape sequences in |
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779 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are |
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780 expanded even when the template string is defined with single quotes. |
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781 @seealso{fputs, fdisp, fwrite, fscanf, printf, sprintf, fopen} |
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782 @end deftypefn */) |
1181 | 783 { |
4468 | 784 static std::string who = "fprintf"; |
785 | |
1181 | 786 int nargin = args.length (); |
787 | |
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788 if (! (nargin > 1 || (nargin > 0 && args(0).is_string ()))) |
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789 print_usage (); |
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790 |
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791 int result; |
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792 |
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793 octave_stream os; |
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794 int fmt_n = 0; |
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795 |
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796 if (args(0).is_string ()) |
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797 os = octave_stream_list::lookup (1, who); |
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798 else |
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799 { |
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800 fmt_n = 1; |
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801 os = octave_stream_list::lookup (args(0), who); |
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802 } |
2873 | 803 |
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804 if (! args(fmt_n).is_string ()) |
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805 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
1181 | 806 |
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807 octave_value_list tmp_args; |
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808 |
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809 if (nargin > 1 + fmt_n) |
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810 { |
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811 tmp_args.resize (nargin-fmt_n-1, octave_value ()); |
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|
812 |
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813 for (int i = fmt_n + 1; i < nargin; i++) |
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814 tmp_args(i-fmt_n-1) = args(i); |
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815 } |
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816 |
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817 result = os.printf (args(fmt_n), tmp_args, who); |
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818 |
4715 | 819 if (nargout > 0) |
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820 return ovl (result); |
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821 else |
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822 return ovl (); |
1181 | 823 } |
824 | |
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825 DEFUN (printf, args, nargout, |
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826 doc: /* -*- texinfo -*- |
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827 @deftypefn {} {} printf (@var{template}, @dots{}) |
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828 Print optional arguments under the control of the template string |
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829 @var{template} to the stream @code{stdout} and return the number of |
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830 characters printed. |
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831 @ifclear OCTAVE_MANUAL |
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832 |
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833 See the Formatted Output section of the GNU Octave manual for a |
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834 complete description of the syntax of the template string. |
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835 @end ifclear |
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836 |
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837 Implementation Note: For compatibility with @sc{matlab}, escape sequences in |
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838 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are |
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839 expanded even when the template string is defined with single quotes. |
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840 @seealso{fprintf, sprintf, scanf} |
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841 @end deftypefn */) |
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842 { |
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843 static std::string who = "printf"; |
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844 |
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845 int nargin = args.length (); |
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846 |
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847 if (nargin == 0) |
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848 print_usage (); |
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849 |
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850 int result; |
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851 |
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852 if (! args(0).is_string ()) |
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853 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
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854 |
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855 octave_value_list tmp_args; |
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856 |
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857 if (nargin > 1) |
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858 { |
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859 tmp_args.resize (nargin-1, octave_value ()); |
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860 |
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861 for (int i = 1; i < nargin; i++) |
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862 tmp_args(i-1) = args(i); |
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863 } |
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864 |
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865 result = stdout_stream.printf (args(0), tmp_args, who); |
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866 |
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|
867 if (nargout > 0) |
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868 return ovl (result); |
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|
869 else |
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870 return ovl (); |
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871 } |
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872 |
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873 DEFUN (fputs, args, , |
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874 doc: /* -*- texinfo -*- |
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875 @deftypefn {} {} fputs (@var{fid}, @var{string}) |
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876 @deftypefnx {} {@var{status} =} fputs (@var{fid}, @var{string}) |
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877 Write the string @var{string} to the file with file descriptor @var{fid}. |
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878 |
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|
879 The string is written to the file with no additional formatting. Use |
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880 @code{fdisp} instead to automatically append a newline character appropriate |
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881 for the local machine. |
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|
882 |
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|
883 Return a non-negative number on success or EOF on error. |
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884 @seealso{fdisp, fprintf, fwrite, fopen} |
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|
885 @end deftypefn */) |
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886 { |
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887 static std::string who = "fputs"; |
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|
888 |
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|
889 if (args.length () != 2) |
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|
890 print_usage (); |
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|
891 |
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892 octave_stream os = octave_stream_list::lookup (args(0), who); |
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|
893 |
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|
894 return ovl (os.puts (args(1), who)); |
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|
895 } |
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|
896 |
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|
897 DEFUN (puts, args, , |
21966
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|
898 doc: /* -*- texinfo -*- |
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move docstrings in C++ files out of C strings and into comments
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|
899 @deftypefn {} {} puts (@var{string}) |
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move docstrings in C++ files out of C strings and into comments
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|
900 @deftypefnx {} {@var{status} =} puts (@var{string}) |
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move docstrings in C++ files out of C strings and into comments
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901 Write a string to the standard output with no formatting. |
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diff
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|
902 |
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move docstrings in C++ files out of C strings and into comments
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|
903 The string is written verbatim to the standard output. Use @code{disp} to |
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|
904 automatically append a newline character appropriate for the local machine. |
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|
905 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
906 Return a non-negative number on success and EOF on error. |
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move docstrings in C++ files out of C strings and into comments
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|
907 @seealso{fputs, disp} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
908 @end deftypefn */) |
21634
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|
909 { |
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|
910 static std::string who = "puts"; |
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|
911 |
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|
912 if (args.length () != 1) |
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|
913 print_usage (); |
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|
914 |
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|
915 return ovl (stdout_stream.puts (args(0), who)); |
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|
916 } |
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|
917 |
2095 | 918 DEFUN (sprintf, args, , |
21966
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|
919 doc: /* -*- texinfo -*- |
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|
920 @deftypefn {} {} sprintf (@var{template}, @dots{}) |
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|
921 This is like @code{printf}, except that the output is returned as a |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
922 string. |
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move docstrings in C++ files out of C strings and into comments
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|
923 |
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move docstrings in C++ files out of C strings and into comments
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|
924 Unlike the C library function, which requires you to provide a suitably |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
925 sized string as an argument, Octave's @code{sprintf} function returns the |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
926 string, automatically sized to hold all of the items converted. |
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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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|
927 |
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move docstrings in C++ files out of C strings and into comments
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|
928 Implementation Note: For compatibility with @sc{matlab}, escape sequences in |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
929 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
930 expanded even when the template string is defined with single quotes. |
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|
931 @seealso{printf, fprintf, sscanf} |
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|
932 @end deftypefn */) |
1 | 933 { |
4468 | 934 static std::string who = "sprintf"; |
935 | |
2095 | 936 int nargin = args.length (); |
1 | 937 |
20805
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eliminate return statements after calls to print_usage
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|
938 if (nargin == 0) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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|
939 print_usage (); |
2116 | 940 |
21506
128703a29388
avoid some duplicate code in file-io functions
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diff
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|
941 // We don't use octave_ostrstream::create here because need direct |
128703a29388
avoid some duplicate code in file-io functions
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|
942 // access to the OSTR object so that we can extract a string object |
128703a29388
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diff
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|
943 // from it to return. |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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|
944 octave_ostrstream *ostr = new octave_ostrstream (); |
2d6ddb2b157c
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|
945 |
21506
128703a29388
avoid some duplicate code in file-io functions
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diff
changeset
|
946 // The octave_stream destructor will delete OSTR for us. |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
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|
947 octave_stream os (ostr); |
628 | 948 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
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20884
diff
changeset
|
949 if (! os.is_valid ()) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
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20884
diff
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|
950 error ("%s: unable to create output buffer", who.c_str ()); |
1 | 951 |
20898
8da80da1ac37
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Rik <rik@octave.org>
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diff
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|
952 octave_value fmt_arg = args(0); |
1 | 953 |
20898
8da80da1ac37
maint: Use ovl() more places in the code.
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20884
diff
changeset
|
954 if (! fmt_arg.is_string ()) |
8da80da1ac37
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Rik <rik@octave.org>
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20884
diff
changeset
|
955 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
628 | 956 |
20898
8da80da1ac37
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Rik <rik@octave.org>
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diff
changeset
|
957 octave_value_list retval (3); |
19727
3c3b9fce7d2b
improve compatibility of sprintf function.
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19697
diff
changeset
|
958 |
20898
8da80da1ac37
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Rik <rik@octave.org>
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diff
changeset
|
959 octave_value_list tmp_args; |
8da80da1ac37
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Rik <rik@octave.org>
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diff
changeset
|
960 if (nargin > 1) |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20884
diff
changeset
|
961 { |
8da80da1ac37
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Rik <rik@octave.org>
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diff
changeset
|
962 tmp_args.resize (nargin-1, octave_value ()); |
19727
3c3b9fce7d2b
improve compatibility of sprintf function.
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19697
diff
changeset
|
963 |
20898
8da80da1ac37
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Rik <rik@octave.org>
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20884
diff
changeset
|
964 for (int i = 1; i < nargin; i++) |
8da80da1ac37
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diff
changeset
|
965 tmp_args(i-1) = args(i); |
8da80da1ac37
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diff
changeset
|
966 } |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
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diff
changeset
|
967 |
20898
8da80da1ac37
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Rik <rik@octave.org>
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20884
diff
changeset
|
968 // NOTE: Call to os.error must precede next call to ostr which might reset it. |
8da80da1ac37
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diff
changeset
|
969 retval(2) = os.printf (fmt_arg, tmp_args, who); |
8da80da1ac37
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diff
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|
970 retval(1) = os.error (); |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
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20884
diff
changeset
|
971 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20884
diff
changeset
|
972 std::string result = ostr->str (); |
8da80da1ac37
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diff
changeset
|
973 char type = fmt_arg.is_sq_string () ? '\'' : '"'; |
8da80da1ac37
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Rik <rik@octave.org>
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diff
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|
974 |
8da80da1ac37
maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents:
20884
diff
changeset
|
975 retval(0) = (result.empty () ? octave_value (charMatrix (1, 0), type) |
8da80da1ac37
maint: Use ovl() more places in the code.
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diff
changeset
|
976 : octave_value (result, type)); |
1 | 977 |
978 return retval; | |
979 } | |
980 | |
2095 | 981 DEFUN (fscanf, args, , |
21966
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move docstrings in C++ files out of C strings and into comments
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|
982 doc: /* -*- texinfo -*- |
112b20240c87
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|
983 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}] =} fscanf (@var{fid}, @var{template}, @var{size}) |
112b20240c87
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|
984 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}] =} fscanf (@var{fid}, @var{template}, "C") |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
985 In the first form, read from @var{fid} according to @var{template}, |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
986 returning the result in the matrix @var{val}. |
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diff
changeset
|
987 |
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diff
changeset
|
988 The optional argument @var{size} specifies the amount of data to read |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
989 and may be one of |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
990 |
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991 @table @code |
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992 @item Inf |
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993 Read as much as possible, returning a column vector. |
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994 |
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995 @item @var{nr} |
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996 Read up to @var{nr} elements, returning a column vector. |
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997 |
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998 @item [@var{nr}, Inf] |
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999 Read as much as possible, returning a matrix with @var{nr} rows. If the |
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1000 number of elements read is not an exact multiple of @var{nr}, the last |
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1001 column is padded with zeros. |
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1002 |
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1003 @item [@var{nr}, @var{nc}] |
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1004 Read up to @code{@var{nr} * @var{nc}} elements, returning a matrix with |
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1005 @var{nr} rows. If the number of elements read is not an exact multiple |
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1006 of @var{nr}, the last column is padded with zeros. |
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1007 @end table |
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1008 |
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1009 @noindent |
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1010 If @var{size} is omitted, a value of @code{Inf} is assumed. |
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1011 |
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1012 A string is returned if @var{template} specifies only character conversions. |
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1013 |
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1014 The number of items successfully read is returned in @var{count}. |
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1015 |
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1016 If an error occurs, @var{errmsg} contains a system-dependent error message. |
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1017 |
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1018 In the second form, read from @var{fid} according to @var{template}, |
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1019 with each conversion specifier in @var{template} corresponding to a |
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1020 single scalar return value. This form is more ``C-like'', and also |
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1021 compatible with previous versions of Octave. The number of successful |
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1022 conversions is returned in @var{count} |
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1023 @ifclear OCTAVE_MANUAL |
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1024 |
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1025 See the Formatted Input section of the GNU Octave manual for a |
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1026 complete description of the syntax of the template string. |
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1027 @end ifclear |
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1028 @seealso{fgets, fgetl, fread, scanf, sscanf, fopen} |
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1029 @end deftypefn */) |
1181 | 1030 { |
4468 | 1031 static std::string who = "fscanf"; |
1032 | |
1181 | 1033 int nargin = args.length (); |
1034 | |
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1035 if (nargin < 2 || nargin > 3) |
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1036 print_usage (); |
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1037 |
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1038 octave_value_list retval; |
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1039 |
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1040 octave_stream os = octave_stream_list::lookup (args(0), who); |
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1041 |
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1042 if (! args(1).is_string ()) |
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1043 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
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1044 |
2215 | 1045 if (nargin == 3 && args(2).is_string ()) |
2095 | 1046 { |
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1047 retval = ovl (os.oscanf (args(1), who)); |
2095 | 1048 } |
1181 | 1049 else |
2215 | 1050 { |
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1051 octave_idx_type count = 0; |
2215 | 1052 |
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1053 Array<double> size = (nargin == 3) |
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1054 ? args(2).vector_value () |
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1055 : Array<double> (dim_vector (1, 1), |
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1056 lo_ieee_inf_value ()); |
2215 | 1057 |
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1058 octave_value tmp = os.scanf (args(1), size, count, who); |
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1059 |
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1060 retval = ovl (tmp, count, os.error ()); |
2215 | 1061 } |
1181 | 1062 |
1063 return retval; | |
1064 } | |
1065 | |
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1066 static std::string |
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1067 get_scan_string_data (const octave_value& val, const std::string& who) |
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1068 { |
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1069 std::string retval; |
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1070 |
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1071 if (! val.is_string ()) |
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1072 error ("%s: argument STRING must be a string", who.c_str ()); |
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1073 |
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1074 octave_value tmp = val.reshape (dim_vector (1, val.numel ())); |
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1075 |
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1076 retval = tmp.string_value (); |
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1077 |
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1078 return retval; |
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1079 } |
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1080 |
2095 | 1081 DEFUN (sscanf, args, , |
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1082 doc: /* -*- texinfo -*- |
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1083 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}, @var{pos}] =} sscanf (@var{string}, @var{template}, @var{size}) |
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1084 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}] =} sscanf (@var{string}, @var{template}, "C") |
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1085 This is like @code{fscanf}, except that the characters are taken from the |
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1086 string @var{string} instead of from a stream. |
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1087 |
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1088 Reaching the end of the string is treated as an end-of-file condition. In |
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1089 addition to the values returned by @code{fscanf}, the index of the next |
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1090 character to be read is returned in @var{pos}. |
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1091 @seealso{fscanf, scanf, sprintf} |
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1092 @end deftypefn */) |
444 | 1093 { |
4468 | 1094 static std::string who = "sscanf"; |
1095 | |
506 | 1096 int nargin = args.length (); |
1097 | |
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1098 if (nargin < 2 || nargin > 3) |
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1099 print_usage (); |
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1100 |
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1101 octave_value_list retval; |
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1102 |
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1103 std::string data = get_scan_string_data (args(0), who); |
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1104 |
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1105 octave_stream os = octave_istrstream::create (data); |
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1106 |
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1107 if (! os.is_valid ()) |
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1108 error ("%s: unable to create temporary input buffer", who.c_str ()); |
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1109 |
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1110 if (! args(1).is_string ()) |
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1111 error ("%s: format TEMPLATE must be a string", who.c_str ()); |
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1112 |
2215 | 1113 if (nargin == 3 && args(2).is_string ()) |
2095 | 1114 { |
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1115 retval = ovl (os.oscanf (args(1), who)); |
444 | 1116 } |
1117 else | |
2215 | 1118 { |
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1119 octave_idx_type count = 0; |
2215 | 1120 |
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1121 Array<double> size = (nargin == 3) ? args(2).vector_value () |
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1122 : Array<double> (dim_vector (1, 1), |
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1123 lo_ieee_inf_value ()); |
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1124 |
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1125 octave_value tmp = os.scanf (args(1), size, count, who); |
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1126 |
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1127 // FIXME: is this the right thing to do? |
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1128 // Extract error message first, because getting |
6f0bd96f93c0
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|
1129 // position will clear it. |
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|
1130 std::string errmsg = os.error (); |
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1131 |
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|
1132 retval = ovl (tmp, count, errmsg, |
6f0bd96f93c0
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|
1133 (os.eof () ? data.length () : os.tell ()) + 1); |
2215 | 1134 } |
444 | 1135 |
1136 return retval; | |
1137 } | |
1138 | |
21634
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|
1139 DEFUN (scanf, args, nargout, |
21966
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1140 doc: /* -*- texinfo -*- |
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1141 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}] =} scanf (@var{template}, @var{size}) |
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1142 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}]] =} scanf (@var{template}, "C") |
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1143 This is equivalent to calling @code{fscanf} with @var{fid} = @code{stdin}. |
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1144 |
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|
1145 It is currently not useful to call @code{scanf} in interactive programs. |
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1146 @seealso{fscanf, sscanf, printf} |
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1147 @end deftypefn */) |
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|
1148 { |
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|
1149 int nargin = args.length (); |
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|
1150 |
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|
1151 octave_value_list tmp_args (nargin+1, octave_value ()); |
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|
1152 |
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|
1153 tmp_args (0) = 0.0; |
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|
1154 for (int i = 0; i < nargin; i++) |
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|
1155 tmp_args(i+1) = args(i); |
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|
1156 |
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|
1157 return Ffscanf (tmp_args, nargout); |
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|
1158 } |
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|
1159 |
21504 | 1160 static octave_value_list |
1161 textscan_internal (const std::string& who, const octave_value_list& args) | |
1162 { | |
1163 if (args.length () < 1) | |
1164 print_usage (who); | |
1165 | |
21507
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diff
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|
1166 octave_stream os; |
2cdbae31c022
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diff
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|
1167 |
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|
1168 if (args(0).is_string ()) |
2cdbae31c022
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|
1169 { |
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|
1170 std::string data = get_scan_string_data (args(0), who); |
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diff
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|
1171 |
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|
1172 os = octave_istrstream::create (data); |
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|
1173 |
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|
1174 if (! os.is_valid ()) |
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|
1175 error ("%s: unable to create temporary input buffer", who.c_str ()); |
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|
1176 } |
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|
1177 else |
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|
1178 os =octave_stream_list::lookup (args(0), who); |
21504 | 1179 |
1180 int nskip = 1; | |
1181 | |
1182 std::string fmt; | |
1183 | |
1184 if (args.length () == 1) | |
1185 { | |
1186 // ommited format = %f. explicit "" = width from file | |
1187 fmt = "%f"; | |
1188 } | |
1189 else if (args(1).is_string ()) | |
1190 { | |
1191 fmt = args(1).string_value (); | |
1192 | |
1193 if (args(1).is_sq_string ()) | |
1194 fmt = do_string_escapes (fmt); | |
1195 | |
1196 nskip++; | |
1197 } | |
1198 else | |
1199 error ("%s: FORMAT must be a string", who.c_str ()); | |
1200 | |
1201 octave_idx_type ntimes = -1; | |
1202 | |
1203 if (args.length () > 2) | |
1204 { | |
1205 if (args(2).is_numeric_type ()) | |
1206 { | |
1207 ntimes = args(2).idx_type_value (); | |
1208 | |
1209 if (ntimes < args(2).double_value ()) | |
1210 error ("%s: REPEAT = %g is too large", | |
1211 who.c_str (), args(2).double_value ()); | |
1212 | |
1213 nskip++; | |
1214 } | |
1215 } | |
1216 | |
1217 octave_value_list options = args.splice (0, nskip); | |
1218 | |
1219 octave_idx_type count = 0; | |
1220 | |
1221 octave_value result = os.textscan (fmt, ntimes, options, who, count); | |
1222 | |
1223 std::string errmsg = os.error (); | |
1224 | |
1225 return ovl (result, count, errmsg); | |
1226 } | |
1227 | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
1228 DEFUN (textscan, args, , |
21966
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|
1229 doc: /* -*- texinfo -*- |
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1230 @deftypefn {} {@var{C} =} textscan (@var{fid}, @var{format}) |
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1231 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{repeat}) |
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|
1232 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{param}, @var{value}, @dots{}) |
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|
1233 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{repeat}, @var{param}, @var{value}, @dots{}) |
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1234 @deftypefnx {} {@var{C} =} textscan (@var{str}, @dots{}) |
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|
1235 @deftypefnx {} {[@var{C}, @var{position}, @var{errmsg}] =} textscan (@dots{}) |
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|
1236 Read data from a text file or string. |
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|
1237 |
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|
1238 The string @var{str} or file associated with @var{fid} is read from and |
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|
1239 parsed according to @var{format}. The function is an extension of |
112b20240c87
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diff
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|
1240 @code{strread} and @code{textread}. Differences include: the ability to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
1241 read from either a file or a string, additional options, and additional |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
1242 format specifiers. |
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|
1243 |
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|
1244 The input is interpreted as a sequence of words, delimiters (such as |
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|
1245 whitespace), and literals. The characters that form delimiters and |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
1246 whitespace are determined by the options. The format consists of format |
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move docstrings in C++ files out of C strings and into comments
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|
1247 specifiers interspersed between literals. In the format, whitespace forms |
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move docstrings in C++ files out of C strings and into comments
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1248 a delimiter between consecutive literals, but is otherwise ignored. |
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1249 |
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|
1250 The output @var{C} is a cell array where the number of columns is determined |
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1251 by the number of format specifiers. |
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1252 |
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|
1253 The first word of the input is matched to the first specifier of the format |
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1254 and placed in the first column of the output; the second is matched to the |
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|
1255 second specifier and placed in the second column and so forth. If there |
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|
1256 are more words than specifiers then the process is repeated until all words |
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|
1257 have been processed or the limit imposed by @var{repeat} has been met (see |
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1258 below). |
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1259 |
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|
1260 The string @var{format} describes how the words in @var{str} should be |
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1261 parsed. As in @var{fscanf}, any (non-whitespace) text in the format that is |
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1262 not one of these specifiers is considered a literal. If there is a literal |
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|
1263 between two format specifiers then that same literal must appear in the |
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1264 input stream between the matching words. |
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1265 |
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|
1266 The following specifiers are valid: |
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1267 |
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1268 @table @code |
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1269 @item %f |
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1270 @itemx %f64 |
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1271 @itemx %n |
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1272 The word is parsed as a number and converted to double. |
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1273 |
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1274 @item %f32 |
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1275 The word is parsed as a number and converted to single (float). |
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1276 |
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1277 @item %d |
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1278 @itemx %d8 |
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1279 @itemx %d16 |
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1280 @itemx %d32 |
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1281 @itemx %d64 |
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1282 The word is parsed as a number and converted to int8, int16, int32, or |
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1283 int64. If no size is specified then int32 is used. |
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1284 |
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1285 @item %u |
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1286 @itemx %u8 |
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1287 @itemx %u16 |
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1288 @itemx %u32 |
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1289 @itemx %u64 |
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|
1290 The word is parsed as a number and converted to uint8, uint16, uint32, or |
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1291 uint64. If no size is specified then uint32 is used. |
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1292 |
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1293 @item %s |
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1294 The word is parsed as a string ending at the last character before |
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1295 whitespace, an end-of-line, or a delimiter specified in the options. |
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1296 |
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1297 @item %q |
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1298 The word is parsed as a "quoted string". |
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1299 If the first character of the string is a double quote (") then the string |
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1300 includes everything until a matching double quote---including whitespace, |
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1301 delimiters, and end-of-line characters. If a pair of consecutive double |
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1302 quotes appears in the input, it is replaced in the output by a single |
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1303 double quote. For examples, the input "He said ""Hello""" would |
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1304 return the value 'He said "Hello"'. |
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1305 |
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1306 @item %c |
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1307 The next character of the input is read. |
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1308 This includes delimiters, whitespace, and end-of-line characters. |
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1309 |
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1310 @item %[@dots{}] |
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1311 @itemx %[^@dots{}] |
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1312 In the first form, the word consists of the longest run consisting of only |
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1313 characters between the brackets. Ranges of characters can be specified by |
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1314 a hyphen; for example, %[0-9a-zA-Z] matches all alphanumeric characters (if |
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1315 the underlying character set is ASCII). Since @sc{matlab} treats hyphens |
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1316 literally, this expansion only applies to alphanumeric characters. To |
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1317 include '-' in the set, it should appear first or last in the brackets; to |
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1318 include ']', it should be the first character. If the first character is |
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1319 '^' then the word consists of characters @strong{not} listed. |
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1320 |
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1321 @item %N@dots{} |
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1322 For %s, %c %d, %f, %n, %u, an optional width can be specified as %Ns, etc. |
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1323 where N is an integer > 1. For %c, this causes exactly N characters to be |
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1324 read instead of a single character. For the other specifiers, it is an |
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1325 upper bound on the number of characters read; normal delimiters can cause |
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1326 fewer characters to be read. For complex numbers, this limit applies to |
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1327 the real and imaginary components individually. For %f and %n, format |
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1328 specifiers like %N.Mf are allowed, where M is an upper bound on number of |
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1329 characters after the decimal point to be considered; subsequent digits are |
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1330 skipped. For example, the specifier %8.2f would read 12.345e6 as 1.234e7. |
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1331 |
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1332 @item %*@dots{} |
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1333 The word specified by the remainder of the conversion specifier is skipped. |
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1334 |
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1335 @item literals |
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1336 In addition the format may contain literal character strings; these will be |
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1337 skipped during reading. If the input string does not match this literal, |
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1338 the processing terminates. |
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1339 @end table |
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1340 |
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1341 Parsed words corresponding to the first specifier are returned in the first |
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1342 output argument and likewise for the rest of the specifiers. |
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1343 |
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1344 By default, if there is only one input argument, @var{format} is @t{"%f"}. |
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1345 This means that numbers are read from the input into a single column vector. |
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1346 If @var{format} is explicitly empty (@qcode{""}) then textscan will |
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1347 return data in a number of columns matching the number of fields on the |
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1348 first data line of the input. Either of these is suitable only when the |
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1349 input is exclusively numeric. |
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1350 |
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1351 For example, the string |
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1352 |
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1353 @smallexample |
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1354 @group |
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1355 @var{str} = "\ |
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1356 Bunny Bugs 5.5\n\ |
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1357 Duck Daffy -7.5e-5\n\ |
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1358 Penguin Tux 6" |
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1359 @end group |
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1360 @end smallexample |
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1361 |
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1362 @noindent |
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1363 can be read using |
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1364 |
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1365 @example |
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1366 @var{a} = textscan (@var{str}, "%s %s %f"); |
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1367 @end example |
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1368 |
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1369 The optional numeric argument @var{repeat} can be used for limiting the |
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1370 number of items read: |
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1371 |
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1372 @table @asis |
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1373 @item -1 |
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1374 Read all of the string or file until the end (default). |
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1375 |
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1376 @item N |
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1377 Read until the first of two conditions occurs: 1) the format has been |
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1378 processed N times, or 2) N lines of the input have been processed. Zero |
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1379 (0) is an acceptable value for @var{repeat}. Currently, end-of-line |
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1380 characters inside %q, %c, and %[@dots{}]$ conversions do not contribute to |
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1381 the line count. This is incompatible with @sc{matlab} and may change in |
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1382 future. |
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1383 @end table |
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1384 |
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1385 The behavior of @code{textscan} can be changed via property/value pairs. |
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1386 The following properties are recognized: |
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1387 |
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1388 @table @asis |
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1389 @item @qcode{"BufSize"} |
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1390 This specifies the number of bytes to use for the internal buffer. |
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1391 A modest speed improvement may be obtained by setting this to a large value |
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1392 when reading a large file, especially if the input contains long strings. |
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1393 The default is 4096, or a value dependent on @var{n} if that is specified. |
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1394 |
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1395 @item @qcode{"CollectOutput"} |
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1396 A value of 1 or true instructs @code{textscan} to concatenate consecutive |
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1397 columns of the same class in the output cell array. A value of 0 or false |
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1398 (default) leaves output in distinct columns. |
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1399 |
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1400 @item @qcode{"CommentStyle"} |
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1401 Specify parts of the input which are considered comments and will be |
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1402 skipped. @var{value} is the comment style and can be either (1) A string |
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1403 or 1x1 cell string, to skip everything to the right of it; (2) A cell array |
21992
03c692adf563
maint: strip trailing whitespace from files.
John W. Eaton <jwe@octave.org>
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diff
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|
1404 of two strings, to skip everything between the first and second strings. |
21966
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1405 Comments are only parsed where whitespace is accepted and do not act as |
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1406 delimiters. |
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1407 |
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1408 @item @qcode{"Delimiter"} |
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1409 If @var{value} is a string, any character in @var{value} will be used to |
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1410 split the input into words. If @var{value} is a cell array of strings, |
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move docstrings in C++ files out of C strings and into comments
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1411 any string in the array will be used to split the input into words. |
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1412 (default value = any whitespace.) |
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1413 |
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1414 @item @qcode{"EmptyValue"} |
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1415 Value to return for empty numeric values in non-whitespace delimited data. |
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1416 The default is NaN@. When the data type does not support NaN (int32 for |
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|
1417 example), then the default is zero. |
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1418 |
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1419 @item @qcode{"EndOfLine"} |
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1420 @var{value} can be either an emtpy or one character specifying the |
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1421 end-of-line character, or the pair |
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1422 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} (CRLF). |
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1423 In the latter case, any of |
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1424 @qcode{"@xbackslashchar{}r"}, @qcode{"@xbackslashchar{}n"} or |
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1425 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} is counted as a (single) |
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1426 newline. If no value is given, |
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1427 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} is used. |
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1428 @c If set to "" (empty string) EOLs are ignored as delimiters and added |
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1429 @c to whitespace. |
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1430 |
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1431 @c When reading from a character string, optional input argument @var{n} |
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1432 @c specifies the number of times @var{format} should be used (i.e., to limit |
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1433 @c the amount of data read). |
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1434 @c When reading from file, @var{n} specifies the number of data lines to read; |
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|
1435 @c in this sense it differs slightly from the format repeat count in strread. |
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|
1436 |
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|
1437 @item @qcode{"HeaderLines"} |
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1438 The first @var{value} number of lines of @var{fid} are skipped. Note that |
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|
1439 this does not refer to the first non-comment lines, but the first lines of |
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1440 any type. |
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|
1441 |
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|
1442 @item @qcode{"MultipleDelimsAsOne"} |
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|
1443 If @var{value} is nonzero, treat a series of consecutive delimiters, |
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1444 without whitespace in between, as a single delimiter. Consecutive |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
1445 delimiter series need not be vertically aligned. Without this option, a |
112b20240c87
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|
1446 single delimiter before the end of the line does not cause the line to be |
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1447 considered to end with an empty value, but a single delimiter at the start |
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1448 of a line causes the line to be considered to start with an empty value. |
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|
1449 |
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|
1450 @item @qcode{"TreatAsEmpty"} |
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1451 Treat single occurrences (surrounded by delimiters or whitespace) of the |
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1452 string(s) in @var{value} as missing values. |
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|
1453 |
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|
1454 @item @qcode{"ReturnOnError"} |
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|
1455 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>
parents:
22022
diff
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|
1456 encountered, such as trying to read a string using @code{%f}. |
21966
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1457 If set to 0 or false, return an error and no data. |
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|
1458 |
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1459 @item @qcode{"Whitespace"} |
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1460 Any character in @var{value} will be interpreted as whitespace and trimmed; |
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|
1461 The default value for whitespace is |
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1462 @c Note: the next line specifically has a newline which generates a space |
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1463 @c in the output of qcode, but keeps the next line < 80 characters. |
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1464 @qcode{" |
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1465 @xbackslashchar{}b@xbackslashchar{}r@xbackslashchar{}n@xbackslashchar{}t"} |
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1466 (note the space). Unless whitespace is set to @qcode{""} (empty) AND at |
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1467 least one @qcode{"%s"} format conversion specifier is supplied, a space is |
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1468 always part of whitespace. |
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|
1469 |
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1470 @end table |
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|
1471 |
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|
1472 When the number of words in @var{str} or @var{fid} doesn't match an exact |
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1473 multiple of the number of format conversion specifiers, @code{textscan}'s |
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|
1474 behavior depends on whether the last character of the string or file is an |
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1475 end-of-line as specified by the @code{EndOfLine} option: |
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1476 |
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1477 @table @asis |
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1478 @item last character = end-of-line |
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1479 Data columns are padded with empty fields, NaN or 0 (for integer fields) so |
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1480 that all columns have equal length |
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1481 |
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1482 @item last character is not end-of-line |
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1483 Data columns are not padded; @code{textscan} returns columns of unequal |
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1484 length |
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1485 @end table |
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1486 |
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1487 The second output @var{position} provides the location, in characters |
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1488 from the beginning of the file or string, where processing stopped. |
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1489 |
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1490 @seealso{dlmread, fscanf, load, strread, textread} |
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1491 @end deftypefn */) |
21502
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1492 { |
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1493 static std::string who = "textscan"; |
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1494 |
21504 | 1495 return textscan_internal (who, args); |
1496 } | |
1497 | |
1498 DEFUN (__textscan__, args, , | |
21966
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1499 doc: /* -*- texinfo -*- |
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1500 @deftypefn {} {@var{C} =} __textscan__ (@var{who}, @dots{}) |
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1501 Like @code{textscan} but accept additional argument @var{who} to use |
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1502 as the name of the function when reporting errors. |
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|
1503 @end deftypefn */) |
21504 | 1504 { |
1505 if (args.length () == 0) | |
21502
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|
1506 print_usage (); |
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1507 |
21504 | 1508 return textscan_internal (args(0).string_value (), args.splice (0, 1)); |
21502
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1509 } |
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1510 |
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1511 /* |
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1512 %!test |
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1513 %! str = "1, 2, 3, 4\n 5, , , 8\n 9, 10, 11, 12"; |
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|
1514 %! fmtstr = "%f %d %f %s"; |
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|
1515 %! c = textscan (str, fmtstr, 2, "delimiter", ",", "emptyvalue", -Inf); |
21625 | 1516 %! assert (c{1}, [1;5]); |
1517 %! assert (c{3}, [3; -Inf]); | |
21502
7a19c5678f91
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changeset
|
1518 %! assert (iscellstr (c{4})); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1519 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1520 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1521 %! b = [10:10:100]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1522 %! b = [b; 8*b/5]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
1523 %! str = sprintf ("%g miles/hr = %g kilometers/hr\n", b); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1524 %! fmt = "%f miles/hr = %f kilometers/hr"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1525 %! c = textscan (str, fmt); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1526 %! assert (c{1}, b(1,:)', 1e-5); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1527 %! assert (c{2}, b(2,:)', 1e-5); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1528 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1529 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1530 %! str = "13, -, NA, str1, -25\r\n// Middle line\r\n36, na, 05, str3, 6"; |
21625 | 1531 %! c = textscan (str, "%d %n %f %s %n", "delimiter", ",", |
1532 %! "treatAsEmpty", {"NA", "na", "-"}, "commentStyle", "//"); | |
1533 %! assert (c{1}, int32 ([13; 36])); | |
1534 %! assert (c{2}, [NaN; NaN]); | |
1535 %! assert (c{3}, [NaN; 5]); | |
1536 %! assert (c{4}, {"str1"; "str3"}); | |
1537 %! assert (c{5}, [-25; 6]); | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1538 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1539 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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diff
changeset
|
1540 %! str = "Km:10 = hhhBjjj miles16hour\r\n"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1541 %! str = [str "Km:15 = hhhJjjj miles241hour\r\n"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1542 %! str = [str "Km:2 = hhhRjjj miles3hour\r\n"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1543 %! str = [str "Km:25 = hhhZ\r\n"]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1544 %! fmt = "Km:%d = hhh%1sjjj miles%dhour"; |
21625 | 1545 %! c = textscan (str, fmt, "delimiter", " "); |
1546 %! assert (c{1}', int32 ([10, 15, 2, 25])); | |
1547 %! assert (c{2}', {'B' 'J' 'R' 'Z'}); | |
1548 %! assert (c{3}', int32 ([16, 241, 3, 0])); | |
1549 | |
1550 ## Test with default EndOfLine parameter | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1551 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1552 %! c = textscan ("L1\nL2", "%s"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1553 %! assert (c{:}, {"L1"; "L2"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
1554 |
21625 | 1555 ## 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
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changeset
|
1556 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1557 %! c = textscan ("L1\nL2", "%s", "endofline", ""); |
21625 | 1558 %! 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
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changeset
|
1559 |
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
|
1560 ### Matlab fails this test. A literal after a conversion is not a delimiter |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1561 #%!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1562 #%! ## No delimiters at all besides EOL. Skip fields, even empty fields |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1563 #%! str = "Text1Text2Text\nTextText4Text\nText57Text"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1564 #%! c = textscan (str, "Text%*dText%dText"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1565 #%! assert (c{1}, int32 ([2; 4; 0])); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1566 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1567 ## CollectOutput test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1568 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1569 %! b = [10:10:100]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1570 %! b = [b; 8*b/5; 8*b*1000/5]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1571 %! 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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changeset
|
1572 %! 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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changeset
|
1573 %! 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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changeset
|
1574 %! assert (size (c{3}), [10, 2]); |
7a19c5678f91
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|
1575 %! assert (size (c{2}), [10, 2]); |
7a19c5678f91
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changeset
|
1576 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1577 ## 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
|
1578 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1579 %! b = [10:10:100]; |
7a19c5678f91
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|
1580 %! b = [b; 8*b/5; 8*b*1000/5]; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
1581 %! 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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|
1582 %! str = [str "110 miles/hr"]; |
7a19c5678f91
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|
1583 %! 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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changeset
|
1584 %! 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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changeset
|
1585 %! 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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changeset
|
1586 %! 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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changeset
|
1587 %! 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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changeset
|
1588 %! assert (c{3}(end), NaN); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
1589 %! 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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|
1590 %! assert (isempty (c{2}{11, 2}), true); |
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
|
1591 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1592 ## Double quoted string |
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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changeset
|
1594 %! str = 'First "the second called ""the middle""" third'; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1595 %! fmt = "%q"; |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1596 %! c = textscan (str, fmt); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1597 %! 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
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changeset
|
1598 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1599 ## Arbitrary character |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1600 %!test |
21625 | 1601 %! c = textscan ("a first, \n second, third", "%s %c %11c", "delimiter", " ,"); |
21502
7a19c5678f91
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changeset
|
1602 %! assert (c{1}, {"a"; "ond"}); |
7a19c5678f91
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|
1603 %! assert (c{2}, {"f"; "t"}); |
7a19c5678f91
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changeset
|
1604 %! assert (c{3}, {"irst, \n sec"; "hird"}); |
7a19c5678f91
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changeset
|
1605 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
1606 ## Field width and non-standard delimiters |
7a19c5678f91
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changeset
|
1607 %!test |
7a19c5678f91
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|
1608 %! str = "12;34;123456789;7"; |
7a19c5678f91
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|
1609 %! c = textscan (str, "%4d %4d", "delimiter", ";", "collectOutput", 1); |
21625 | 1610 %! assert (c, {[12, 34; 1234, 5678; 9, 7]}); |
1611 | |
1612 ## Field width and non-standard delimiters (2) | |
21502
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|
1613 %!test |
7a19c5678f91
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|
1614 %! str = "12;34;123456789;7"; |
7a19c5678f91
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changeset
|
1615 %! c = textscan (str, "%4f %f", "delimiter", ";", "collectOutput", 1); |
21625 | 1616 %! assert (c, {[12, 34; 1234, 56789; 7, NaN]}); |
21502
7a19c5678f91
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changeset
|
1617 |
7a19c5678f91
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changeset
|
1618 ## Ignore trailing delimiter, but use leading one |
7a19c5678f91
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changeset
|
1619 %!test |
7a19c5678f91
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changeset
|
1620 %! str = "12.234e+2,34, \n12345.789-9876j,78\n,10|3"; |
7a19c5678f91
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changeset
|
1621 %! c = textscan (str, "%10.2f %f", "delimiter", ",", "collectOutput", 1, |
21625 | 1622 %! "expChars", "e|"); |
1623 %! assert (c, {[1223, 34; 12345.79-9876j, 78; NaN, 10000]}, 1e-6); | |
1624 | |
1625 ## Multi-character delimiter | |
21502
7a19c5678f91
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changeset
|
1626 %!test |
7a19c5678f91
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changeset
|
1627 %! str = "99end2 space88gap 4564"; |
7a19c5678f91
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changeset
|
1628 %! 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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|
1629 %! assert (c{1}, int32 ([99; 88])); |
7a19c5678f91
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|
1630 %! 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
|
1631 |
21625 | 1632 ## FIXME: Following two tests still fail (4/13/2016)? |
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
|
1633 ### Delimiters as part of literals, and following literals |
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:
21457
diff
changeset
|
1635 #%! str = "12 R&D & 7"; |
21625 | 1636 #%! c = textscan (str, "%f R&D %f", "delimiter", "&", "collectOutput", 1, |
1637 #%! "EmptyValue", -99); | |
1638 #%! assert (c, {[12, -99; 7, -99]}); | |
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
|
1639 # |
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
|
1640 ### Delimiters as part of literals, and before literals |
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
|
1641 #%!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
|
1642 #%! str = "12 & R&D 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
|
1643 #%! c = textscan (str, "%f R&D %f", "delimiter", "&", "collectOutput", 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
|
1644 #%! assert (c, {[12 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
|
1645 |
21625 | 1646 ## 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
|
1647 %!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
|
1648 %! 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
|
1649 %! 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
|
1650 %! fprintf (fid, "1\n2\n3\n4\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
|
1651 %! 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
|
1652 %! c = textscan (fid, "%f %f", 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
|
1653 %! 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
|
1654 %! 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
|
1655 %! 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
|
1656 %! assert (c, {1, 2}); |
21625 | 1657 %! assert (! E); |
1658 | |
1659 ## 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
|
1660 %!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
|
1661 %! 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
|
1662 %! 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
|
1663 %! 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
|
1664 %! 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
|
1665 %! 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
|
1666 %! 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
|
1667 %! unlink (f); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1668 %! 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
|
1669 |
21625 | 1670 ## 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
|
1671 %!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
|
1672 %! 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
|
1673 %! 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
|
1674 %! 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
|
1675 %! 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
|
1676 %! 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
|
1677 %! 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
|
1678 %! unlink (f); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1679 %! 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
|
1680 |
21625 | 1681 ## 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
|
1682 %!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
|
1683 %! 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
|
1684 %! 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
|
1685 %! 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
|
1686 %! 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
|
1687 %! fseek (fid, 0, "bof"); |
21622
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1688 %! 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
|
1689 %! 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
|
1690 %! 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
|
1691 %! unlink (f); |
21622
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1692 %! 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
|
1693 %! assert (c, {[1;4], [2], [3]}); |
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1694 %! 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
|
1695 |
21625 | 1696 %! ## 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
|
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\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
|
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"); |
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
|
1703 %! 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
|
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); |
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
|
1707 %! 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
|
1708 %! assert (c, {[1;4], 2, 3}); |
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
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 %!error <Read error in field 2 of row 2> |
1712 %! textscan ("1 2 3\n4 s 6", "%f %f %f", "ReturnOnError", 0); | |
1713 | |
1714 ## 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
|
1715 %!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
|
1716 %! 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
|
1717 %! 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
|
1718 %! 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
|
1719 %! fseek (fid, 0, "bof"); |
21622
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1720 %! 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
|
1721 %! 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
|
1722 %! 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
|
1723 %! unlink (f); |
21622
fed1111e1899
textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21621
diff
changeset
|
1724 %! 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
|
1725 |
21625 | 1726 ## 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
|
1727 %!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
|
1728 %! 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
|
1729 %! 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
|
1730 |
21625 | 1731 ## 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
|
1732 %!test |
21625 | 1733 %! c = textscan ("1,,3\n4,5,6", "%f %f %f", "Delimiter", ",", |
1734 %! "ReturnOnError", 1); | |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents:
21566
diff
changeset
|
1735 %! 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
|
1736 |
21625 | 1737 ## 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
|
1738 %!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
|
1739 %! 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
|
1740 %! 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
|
1741 |
21625 | 1742 ## FIXME: This test fails (4/14/16) |
1743 ### Test incomplete first data line | |
1744 #%!test | |
1745 #%! R = textscan (['Empty1' char(10)], 'Empty%d %f'); | |
1746 #%! assert (R{1}, int32 (1)); | |
1747 #%! 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
|
1748 |
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
|
1749 ## bug #37023 |
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
|
1750 %!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
|
1751 %! 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
|
1752 %! 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
|
1753 %! 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
|
1754 |
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
|
1755 ## Whitespace test (bug #37333) using 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
|
1756 %!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
|
1757 %! 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
|
1758 %! 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
|
1759 %! 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
|
1760 %! 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
|
1761 %! 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
|
1762 %! 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
|
1763 %! 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
|
1764 %! 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
|
1765 %! 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
|
1766 %! 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
|
1767 %! 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
|
1768 %! assert (strcmp (lh, rh)); |
21625 | 1769 %! 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
|
1770 |
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 ## Whitespace test (bug #37333), adding multipleDelimsAsOne true arg |
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 %!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
|
1773 %! 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
|
1774 %! 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
|
1775 %! 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
|
1776 %! 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
|
1777 %! 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
|
1778 %! 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
|
1779 %! 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
|
1780 %! 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
|
1781 %! 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
|
1782 %! 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
|
1783 %! 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
|
1784 %! assert (strcmp (lh, rh)); |
21625 | 1785 %! 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
|
1786 |
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 ## Whitespace test (bug #37333), adding multipleDelimsAsOne false arg |
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 %!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
|
1789 %! 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
|
1790 %! 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
|
1791 %! 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
|
1792 %! 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
|
1793 %! 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
|
1794 %! 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
|
1795 %! 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
|
1796 %! 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
|
1797 %! 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
|
1798 %! 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
|
1799 %! 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
|
1800 %! 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
|
1801 %! assert (strcmp (lh, rh)); |
21625 | 1802 %! 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
|
1803 |
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 ## Whitespace test (bug #37333) whitespace "" arg |
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 %!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
|
1806 %! 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
|
1807 %! 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
|
1808 %! 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
|
1809 %! 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
|
1810 %! 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
|
1811 %! 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
|
1812 %! 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
|
1813 %! 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
|
1814 %! 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
|
1815 %! 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
|
1816 %! assert (strcmp (lh, rh)); |
21625 | 1817 %! 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
|
1818 |
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
|
1819 ## Whitespace test (bug #37333), whitespace " " arg |
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 %!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
|
1821 %! 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
|
1822 %! 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
|
1823 %! 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
|
1824 %! 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
|
1825 %! 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
|
1826 %! 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
|
1827 %! 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
|
1828 %! 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
|
1829 %! 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
|
1830 %! 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
|
1831 %! 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
|
1832 %! assert (strcmp (lh, rh)); |
21625 | 1833 %! 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
|
1834 |
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 ## 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
|
1836 %!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
|
1837 %! 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
|
1838 %! 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
|
1839 %! 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
|
1840 %! fseek (fid, 0, "bof"); |
21625 | 1841 %! 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
|
1842 %! 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
|
1843 %! 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
|
1844 %! unlink (f); |
21625 | 1845 %! assert (C{1}, [1 ; 5], 1e-6); |
1846 %! assert (C{2}, [2 ; 6], 1e-6); | |
1847 %! assert (C{3}, [3 ; 7], 1e-6); | |
1848 %! 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
|
1849 %! 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
|
1850 |
21621
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1851 ## 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
|
1852 %!test |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1853 %! f = tempname (); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1854 %! fid = fopen (f, "w+"); |
fe0a6de805e4
textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents:
21581
diff
changeset
|
1855 %! fprintf (fid, "1,2\n3,4\n"); |
fe0a6de805e4
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1856 %! fseek (fid, 0, "bof"); |
21625 | 1857 %! C = textscan (fid, "%s %f", 2, "Delimiter", ","); |
21621
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|
1858 %! E = ftell (fid); |
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1859 %! fclose (fid); |
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1860 %! unlink (f); |
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|
1861 %! assert (E, 8); |
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1862 |
21502
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1863 ## Tests reading with empty format; empty fields & incomplete lower row |
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1864 %!test |
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1865 %! f = tempname (); |
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1866 %! fid = fopen (f, "w+"); |
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1867 %! fprintf (fid, " ,2,,4\n5,6"); |
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1868 %! fseek (fid, 0, "bof"); |
21625 | 1869 %! C = textscan (fid, "", "delimiter", ",", "EmptyValue", 999, |
1870 %! "CollectOutput" , 1); | |
21502
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1871 %! fclose (fid); |
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|
1872 %! unlink (f); |
21625 | 1873 %! assert (C{1}, [999, 2, 999, 4; 5, 6, 999, 999], 1e-6); |
21502
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1874 |
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1875 ## Error message tests |
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1876 |
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1877 %!test |
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1878 %! f = tempname (); |
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1879 %! fid = fopen (f, "w+"); |
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1880 %! msg1 = "textscan: 1 parameters given, but only 0 values"; |
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1881 %! try |
21625 | 1882 %! C = textscan (fid, "", "headerlines"); |
21502
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1883 %! end_try_catch; |
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1884 %! assert (!feof (fid)); |
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1885 %! fclose (fid); |
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1886 %! unlink (f); |
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1887 %! assert (msg1, lasterr); |
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1888 |
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1889 %!test |
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1890 %! f = tempname (); |
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1891 %! fid = fopen (f, "w+"); |
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1892 %! msg1 = "textscan: HeaderLines must be numeric"; |
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1893 %! try |
21625 | 1894 %! C = textscan (fid, "", "headerlines", "hh"); |
21502
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1895 %! end_try_catch; |
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1896 %! fclose (fid); |
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1897 %! unlink (f); |
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1898 %! assert (msg1, lasterr); |
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1899 |
21625 | 1900 ## Skip headerlines |
21502
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1901 %!test |
21625 | 1902 %! C = textscan ("field 1 field2\n 1 2\n3 4", "", "headerlines", 1, |
1903 %! "collectOutput", 1); | |
1904 %! assert (C, {[1 2; 3 4]}); | |
1905 | |
1906 ## Skip headerlines with non-default EOL | |
21502
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1907 %!test |
21625 | 1908 %! C = textscan ("field 1 field2\r 1 2\r3 4", "", "headerlines", 2, |
1909 %! "collectOutput", 1, "EndOfLine", '\r'); | |
1910 %! assert (C, {[3 4]}); | |
21502
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1911 |
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1912 %!test |
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1913 %! f = tempname (); |
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1914 %! fid = fopen (f, "w+"); |
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1915 %! fprintf (fid,"some_string"); |
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1916 %! fseek (fid, 0, "bof"); |
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1917 %! msg1 = "textscan: EndOfLine must be at most one character or '\\r\\n'"; |
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1918 %! try |
21625 | 1919 %! C = textscan (fid, "%f", "EndOfLine", "\n\r"); |
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1920 %! end_try_catch; |
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1921 %! fclose (fid); |
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1922 %! unlink (f); |
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1923 %! assert (msg1, lasterr); |
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1924 |
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1925 %!test |
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1926 %! f = tempname (); |
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1927 %! fid = fopen (f, "w+"); |
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1928 %! fprintf (fid,"some_string"); |
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1929 %! fseek (fid, 0, "bof"); |
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1930 %! msg1 = "textscan: EndOfLine must be at most one character or '\\r\\n'"; |
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1931 %! try |
21625 | 1932 %! C = textscan (fid, "%f", "EndOfLine", 33); |
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1933 %! end_try_catch; |
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1934 %! fclose (fid); |
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1935 %! unlink (f); |
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1936 %! assert (msg1, lasterr); |
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1937 |
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1938 ## Bug #41824 |
21625 | 1939 %!assert (textscan ("123", "", "whitespace", " "){:}, 123); |
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1940 |
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1941 ## Bug #42343-1, just test supplied emptyvalue |
21625 | 1942 %!assert (textscan (",NaN", "", "delimiter", "," ,"emptyValue" ,Inf), |
1943 %! {Inf, NaN}) | |
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1944 |
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1945 ## Bug #42343-2, test padding with supplied emptyvalue |
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1946 %!test |
21625 | 1947 %! c = textscan (",1,,4\nInf, ,NaN\n", "", "delimiter", ",", |
1948 %! "emptyvalue", -10); | |
1949 %! assert (cell2mat (c), [-10, 1, -10, 4; Inf, -10, NaN, -10]); | |
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1950 |
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1951 ## Bug #42528 |
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1952 %!test |
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1953 %! assert (textscan ("1i", ""){1}, 0+1i); |
21625 | 1954 %! C = textscan ("3, 2-4i, NaN\n -i, 1, 23.4+2.2i\n 1+1 1+1j", "", |
1955 %! "delimiter", ","); | |
1956 %! 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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1957 |
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1958 %!test |
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1959 %! ## TreatAsEmpty |
21625 | 1960 %! C = textscan ("1,2,3,NN,5,6\n", "%d%d%d%f", "delimiter", ",", |
1961 %! "TreatAsEmpty", "NN"); | |
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1962 %! assert (C{3}(1), int32 (3)); |
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1963 %! assert (C{4}(1), NaN); |
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1964 |
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1965 ## MultipleDelimsAsOne |
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1966 %!test |
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1967 %! str = "11, 12, 13,, 15\n21,, 23, 24, 25\n,, 33, 34, 35\n"; |
21625 | 1968 %! C = textscan (str, "%f %f %f %f", "delimiter", ",", |
1969 %! "multipledelimsasone", 1, "endofline", "\n"); | |
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1970 %! assert (C{1}', [11, 21, 33]); |
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1971 %! assert (C{2}', [12, 23, 34]); |
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1972 %! assert (C{3}', [13, 24, 35]); |
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1973 %! assert (C{4}', [15, 25, NaN]); |
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1974 |
21551
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1975 ## Single-quoted escape sequences |
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1976 %!test |
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1977 %! str = "11\t12\t13\r21\t22\t23"; |
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1978 %! c = textscan (str, "", "delimiter", '\t', "EndOfLine", '\r'); |
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1979 %! assert (c{1}', [11, 21]); |
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1980 %! assert (c{2}', [12, 22]); |
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1981 %! assert (c{3}', [13, 23]); |
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1982 |
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1983 ## Bug #44750 |
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1984 %!test |
21625 | 1985 %! c = textscan ("/home/foo/", "%s", "delimiter", "/", |
1986 %! "MultipleDelimsAsOne", 1); | |
1987 %! assert (c{1}, {"home"; "foo"}); | |
1988 | |
1989 ## FIXME: Test still fails (4/13/2016)? | |
1990 ## Allow cuddling %sliteral, but warn it is ambiguous | |
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1991 #%!test |
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1992 #%! C = textscan ("abcxyz51\nxyz83\n##xyz101", "%s xyz %d"); |
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1993 #%! assert (C{1}([1 3]), {"abc"; "##"}); |
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1994 #%! assert (isempty (C{1}{2}), true); |
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1995 #%! assert (C{2}, int32 ([51; 83; 101])); |
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1996 ### Literals are not delimiters. |
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1997 |
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1998 ## Test for false positives in check for non-supported format specifiers |
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1999 %!test |
21625 | 2000 %! c = textscan ("Total: 32.5 % (of cm values)", |
2001 %! "Total: %f %% (of cm values)"); | |
2002 %! assert (c{1}, 32.5, 1e-5); | |
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2003 |
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2004 ## Test various forms of string format specifiers (bug #45712) |
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2005 %!test |
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2006 %! str = "14 :1 z:2 z:3 z:5 z:11"; |
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2007 %! C = textscan (str, "%f %s %*s %3s %*3s %f", "delimiter", ":"); |
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2008 %! assert (C, {14, {"1 z"}, {"3 z"}, 11}); |
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2009 |
21625 | 2010 ## Bit width, fixed width conversion specifiers |
21502
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2011 %!test |
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2012 %! str2 = "123456789012345 "; |
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2013 %! str2 = [str2 str2 str2 str2 str2 str2 str2 str2]; |
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2014 %! str2 = [str2 "123456789.01234 1234567890.1234 12345.678901234 12345.678901234"]; |
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2015 %! 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"; |
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2016 %! C = textscan (str2, pttrn, "delimiter", " "); |
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2017 %! assert (C{1}, uint8 (123)); |
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2018 %! assert (C{2}, uint16 (12345)); |
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2019 %! assert (C{3}, uint32 (1234567890)); |
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2020 %! assert (C{4}, uint64 (123456789012345)); |
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2021 %! assert (C{5}, int8 (123)); |
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2022 %! assert (C{6}, int16 (12345)); |
7a19c5678f91
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2023 %! assert (C{7}, int32 (1234567890)); |
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|
2024 %! assert (C{8}, int64 (123456789012345)); |
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|
2025 %! assert (C{9}, single (123456789), 1e-12); |
7a19c5678f91
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|
2026 %! assert (C{10}, double (1234567890.123), 1e-15); |
7a19c5678f91
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|
2027 %! assert (C{11}, single (12345.68), 1e-5); |
7a19c5678f91
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changeset
|
2028 %! assert (C{12}, double (12345.68), 1e-11); |
7a19c5678f91
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|
2029 |
21625 | 2030 ## Bit width, fixed width conv. specifiers -- check the right amount is left |
21502
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|
2031 %!test |
7a19c5678f91
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|
2032 %! str2 = "123456789012345 "; |
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|
2033 %! str2 = [str2 str2 "123456789.01234"]; |
7a19c5678f91
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|
2034 %! pttrn = "%3u8 %5u16 %10u32 %3d8 %5d16 %10d32 %9f32 %9f"; |
7a19c5678f91
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|
2035 %! C = textscan (str2, pttrn, "delimiter", " "); |
7a19c5678f91
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|
2036 %! assert (C{1}, uint8 (123)); |
7a19c5678f91
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|
2037 %! assert (C{2}, uint16 (45678)); |
7a19c5678f91
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|
2038 %! assert (C{3}, uint32 (9012345)); |
7a19c5678f91
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|
2039 %! assert (C{4}, int8 (123)); |
7a19c5678f91
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|
2040 %! assert (C{5}, int16 (45678)); |
7a19c5678f91
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|
2041 %! assert (C{6}, int32 (9012345)); |
7a19c5678f91
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|
2042 %! assert (C{7}, single (123456789), 1e-12); |
7a19c5678f91
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|
2043 %! assert (C{8}, double (0.01234), 1e-12); |
7a19c5678f91
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|
2044 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2045 %!test |
7a19c5678f91
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|
2046 %! C = textscan ("123.123", "%2f %3f %3f"); |
7a19c5678f91
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|
2047 %! assert (C{1}, 12); |
7a19c5678f91
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|
2048 %! assert (C{2}, 3.1, 1e-11); |
7a19c5678f91
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|
2049 %! assert (C{3}, 23); |
7a19c5678f91
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changeset
|
2050 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2051 %!test |
7a19c5678f91
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|
2052 %! C = textscan ("123.123", "%3f %3f %3f"); |
7a19c5678f91
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|
2053 %! assert (C{1}, 123); |
7a19c5678f91
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|
2054 %! assert (C{2}, 0.12, 1e-11); |
7a19c5678f91
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|
2055 %! assert (C{3}, 3); |
7a19c5678f91
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changeset
|
2056 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2057 %!test |
7a19c5678f91
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|
2058 %! C = textscan ("123.123", "%4f %3f"); |
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|
2059 %! assert (C{1}, 123); |
7a19c5678f91
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|
2060 %! assert (C{2}, 123); |
7a19c5678f91
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|
2061 |
21625 | 2062 ## field width interrupts exponent. (Matlab incorrectly gives [12, 2e12]) |
21502
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|
2063 %!test |
7a19c5678f91
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|
2064 %! assert (textscan ("12e12", "%4f"), {[120; 2]}); |
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|
2065 %! assert (textscan ("12e+12", "%5f"), {[120; 2]}); |
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|
2066 %! assert (textscan ("125e-12","%6f"), {[12.5; 2]}); |
7a19c5678f91
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|
2067 |
21625 | 2068 ## %[] tests |
2069 ## Plain [..] and *[..] | |
21502
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|
2070 %!test |
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|
2071 %! ar = "abcdefguvwxAny\nacegxyzTrailing\nJunk"; |
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|
2072 %! C = textscan (ar, "%[abcdefg] %*[uvwxyz] %s"); |
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|
2073 %! assert (C{1}, {"abcdefg"; "aceg"; ""}); |
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|
2074 %! assert (C{2}, {"Any"; "Trailing"; "Junk"}); |
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|
2075 |
7a19c5678f91
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|
2076 %!test |
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|
2077 %! assert (textscan ("A2 B2 C3", "%*[ABC]%d", 3), {int32([2; 2; 3])}); |
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|
2078 |
21625 | 2079 ## [^..] and *[^..] |
21502
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|
2080 %!test |
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|
2081 %! br = "abcdefguvwx1Any\nacegxyz2Trailing\n3Junk"; |
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|
2082 %! C = textscan (br, "%[abcdefg] %*[^0123456789] %s"); |
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|
2083 %! assert (C{1}, {"abcdefg"; "aceg"; ""}); |
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|
2084 %! assert (C{2}, {"1Any"; "2Trailing"; "3Junk"}); |
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changeset
|
2085 |
21625 | 2086 ## [..] and [^..] containing delimiters |
21502
7a19c5678f91
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changeset
|
2087 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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changeset
|
2088 %! cr = "ab cd efguv wx1Any\na ce gx yz2Trailing\n 3Junk"; |
21625 | 2089 %! C = textscan (cr, "%[ abcdefg] %*[^0123456789] %s", "delimiter", " \n", |
2090 %! "whitespace", ""); | |
21502
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2091 %! 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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|
2092 %! 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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|
2093 |
21625 | 2094 ## Bug #36464 |
2095 %!assert (textscan ("1 2 3 4 5 6", "%*n%n%*[^\n]"){1}, 2); | |
2096 | |
2097 ## test %[]] and %[^]] | |
21502
7a19c5678f91
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changeset
|
2098 %!test |
21625 | 2099 %! assert (textscan ("345]", "%*[123456]%[]]"){1}{1}, "]"); |
2100 %! assert (textscan ("345]", "%*[^]]%s"){1}{1}, "]"); | |
2101 | |
2102 ## Test that "-i" checks the next two characters | |
21502
7a19c5678f91
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|
2103 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2104 %! C = textscan ("-i -in -inf -infinity", "%f %f%s %f %f %s"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2105 %! 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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|
2106 |
21625 | 2107 ## Again for "+i", this time with custom parser |
21502
7a19c5678f91
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changeset
|
2108 %!test |
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|
2109 %! C = textscan ("+i +in +inf +infinity", "%f %f%s %f %f %s", "ExpChars", "eE"); |
7a19c5678f91
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|
2110 %! 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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2111 |
21625 | 2112 ## Check single quoted format interprets control sequences |
21502
7a19c5678f91
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changeset
|
2113 %!test |
7a19c5678f91
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|
2114 %! 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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|
2115 %! assert (C, {1, {"2"}, 3, 4}); |
7a19c5678f91
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|
2116 |
21532
936ab0fca2f7
Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
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diff
changeset
|
2117 %% Check a non-empty line with no valid conversion registers empytValue |
936ab0fca2f7
Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
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diff
changeset
|
2118 %!test |
936ab0fca2f7
Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
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diff
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|
2119 %! C = textscan ("Empty\n", "Empty%f %f"); |
21580
ecce63c99c3f
maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
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21566
diff
changeset
|
2120 %! assert (C, { NaN, NaN }); |
21532
936ab0fca2f7
Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
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diff
changeset
|
2121 |
21625 | 2122 ## 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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|
2123 %!test |
7a19c5678f91
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2124 %! a = "-1e90 "; |
7a19c5678f91
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|
2125 %! b = "1e90 "; |
7a19c5678f91
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|
2126 %! fmt = "%d8 %d16 %d32 %d64 %u8 %u16 %u32 %u64 "; |
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|
2127 %! 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
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|
2128 %! assert (C{1}, int8 ([-128; 127])); |
7a19c5678f91
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|
2129 %! assert (C{2}, int16 ([-32768; 32767])); |
7a19c5678f91
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|
2130 %! assert (C{3}, int32 ([-2147483648; 2147483647])); |
7a19c5678f91
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|
2131 %! assert (C{4}, int64 ([-9223372036854775808; 9223372036854775807])); |
7a19c5678f91
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|
2132 %! assert (C{5}, uint8 ([0; 255])); |
7a19c5678f91
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|
2133 %! assert (C{6}, uint16 ([0; 65535])); |
7a19c5678f91
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|
2134 %! assert (C{7}, uint32 ([0; 4294967295])); |
7a19c5678f91
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|
2135 %! assert (C{8}, uint64 ([0; 18446744073709551615])); |
7a19c5678f91
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|
2136 |
21625 | 2137 ## Tests from Matlab (does The MathWorks have any copyright over the input?) |
21502
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|
2138 %!test |
7a19c5678f91
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2139 %! f = tempname (); |
7a19c5678f91
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2140 %! fid = fopen (f, "w+"); |
7a19c5678f91
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|
2141 %! fprintf (fid,"09/12/2005 Level1 12.34 45 1.23e10 inf Nan Yes 5.1+3i\n"); |
7a19c5678f91
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|
2142 %! fprintf (fid,"10/12/2005 Level2 23.54 60 9e19 -inf 0.001 No 2.2-.5i\n"); |
7a19c5678f91
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|
2143 %! 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
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|
2144 %! fseek (fid, 0, "bof"); |
7a19c5678f91
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|
2145 %! 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
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|
2146 %! %assert (C{1}, {"09/12/2005";"10/12/2005";"11/12/2005"}); |
7a19c5678f91
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|
2147 %! assert (C{2}, {"Level1";"Level2";"Level3"}); |
7a19c5678f91
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|
2148 %! 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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|
2149 %! assert (C{4}, [int8(45);int8(60);int8(12)]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2150 %! assert (C{5}, [uint32(4294967295);uint32(4294967295);uint32(200000)]); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2151 %! 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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|
2152 %! assert (C{7}, [NaN;0.001;100], eps); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2153 %! assert (C{8}, {"Yes";"No";"No"}); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2154 %! 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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|
2155 %! fseek (fid, 0, "bof"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2156 %! 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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|
2157 %! 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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|
2158 %! 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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|
2159 %! fseek (fid, 0, "bof"); |
21625 | 2160 %! C = textscan (fid, '%s %*[^\n]'); |
21502
7a19c5678f91
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|
2161 %! fclose (fid); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2162 %! unlink (f); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2163 %! 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
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|
2164 |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2165 %!test |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2166 %! f = tempname (); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2167 %! fid = fopen (f, "w+"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2168 %! fprintf (fid,"1, 2, 3, 4, , 6\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2169 %! fprintf (fid,"7, 8, 9, , 11, 12\n"); |
7a19c5678f91
move textscan class to oct-stream.cc and textscan function to file-io.cc
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|
2170 %! fseek (fid, 0, "bof"); |
7a19c5678f91
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|
2171 %! C = textscan (fid,"%f %f %f %f %u8 %f", "Delimiter",",","EmptyValue",-Inf); |
7a19c5678f91
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|
2172 %! fclose (fid); |
7a19c5678f91
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|
2173 %! unlink (f); |
7a19c5678f91
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|
2174 %! assert (C{4}, [4; -Inf]); |
7a19c5678f91
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|
2175 %! assert (C{5}, uint8 ([0; 11])); |
7a19c5678f91
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|
2176 |
7a19c5678f91
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|
2177 %!test |
7a19c5678f91
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|
2178 %! f = tempname (); |
7a19c5678f91
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|
2179 %! fid = fopen (f, "w+"); |
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|
2180 %! fprintf (fid,"abc, 2, NA, 3, 4\n"); |
7a19c5678f91
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|
2181 %! fprintf (fid,"// Comment Here\n"); |
7a19c5678f91
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|
2182 %! fprintf (fid,"def, na, 5, 6, 7\n"); |
7a19c5678f91
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|
2183 %! fseek (fid, 0, "bof"); |
21625 | 2184 %! C = textscan (fid, "%s %n %n %n %n", "Delimiter", ",", |
2185 %! "TreatAsEmpty", {"NA","na"}, "CommentStyle", "//"); | |
21502
7a19c5678f91
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|
2186 %! fclose (fid); |
7a19c5678f91
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|
2187 %! unlink (f); |
7a19c5678f91
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|
2188 %! assert (C{1}, {"abc";"def"}); |
7a19c5678f91
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|
2189 %! assert (C{2}, [2; NaN]); |
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|
2190 %! assert (C{3}, [NaN; 5]); |
7a19c5678f91
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|
2191 %! assert (C{4}, [3; 6]); |
7a19c5678f91
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|
2192 %! assert (C{5}, [4; 7]); |
7a19c5678f91
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2193 |
21625 | 2194 ## FIXME: Almost passes. Second return value is {"/"}. Tested 4/14/16. |
2195 ### Test start of comment as string | |
2196 #%!test | |
2197 #%! c = textscan ("1 / 2 // 3", "%n %s %u8", "CommentStyle", {"//"}); | |
2198 #%! assert (c(1), {1, "/", 2}); | |
21507
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2199 |
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2200 %!assert (textscan (["1 2 3 4"; "5 6 7 8"], "%f"), {[15; 26; 37; 48]}) |
21566
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2201 |
21625 | 2202 ## Check for delimiter after exponent |
21566
02826fb0f261
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|
2203 %!assert (textscan ("1e-3|42", "%f", "delimiter", "|"), {[1e-3; 42]}) |
21502
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2204 */ |
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2205 |
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|
2206 // These tests have end-comment sequences, so can't just be in a comment |
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|
2207 #if 0 |
21625 | 2208 ## Test unfinished comment |
21502
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|
2209 %!test |
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2210 %! c = textscan ("1 2 /* half comment", "%n %u8", "CommentStyle", {"/*", "*/"}); |
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|
2211 %! assert (c, {1, 2}); |
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|
2212 |
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|
2213 ## Test reading from a real file |
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2214 %!test |
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|
2215 %! f = tempname (); |
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2216 %! fid = fopen (f, "w+"); |
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2217 %! d = rand (1, 4); |
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2218 %! fprintf (fid, " %f %f /* comment */ %f %f ", d); |
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|
2219 %! fseek (fid, 0, "bof"); |
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|
2220 %! A = textscan (fid, "%f %f", "CommentStyle", {"/*", "*/"}); |
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|
2221 %! E = feof (fid); |
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2222 %! fclose (fid); |
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2223 %! unlink (f); |
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2224 %! assert (A{1}, [d(1); d(3)], 1e-6); |
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2225 %! assert (A{2}, [d(2); d(4)], 1e-6); |
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|
2226 %! assert (E); |
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2227 #endif |
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2228 |
21625 | 2229 /* |
2230 ## Test input validation | |
2231 %!error textscan () | |
2232 %!error textscan (single (40)) | |
2233 %!error textscan ({40}) | |
2234 %!error <must be a string> textscan ("Hello World", 2) | |
2235 %!error <at most one character or> | |
2236 %! textscan ("Hello World", "%s", "EndOfLine", 3); | |
2237 %!error <'%z' is not a valid format specifier> textscan ("1.0", "%z") | |
2238 %!error <no valid format conversion specifiers> textscan ("1.0", "foo") | |
2239 */ | |
2240 | |
2116 | 2241 static octave_value |
2242 do_fread (octave_stream& os, const octave_value& size_arg, | |
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2243 const octave_value& prec_arg, const octave_value& skip_arg, |
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2244 const octave_value& arch_arg, octave_idx_type& count) |
2116 | 2245 { |
2246 count = -1; | |
2247 | |
20703
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2248 Array<double> size = size_arg.xvector_value ("fread: invalid SIZE specified"); |
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2249 |
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2250 std::string prec = prec_arg.xstring_value ("fread: PRECISION must be a string"); |
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2251 |
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2252 int block_size = 1; |
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2253 oct_data_conv::data_type input_type; |
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2254 oct_data_conv::data_type output_type; |
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2255 |
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|
2256 try |
2116 | 2257 { |
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2258 oct_data_conv::string_to_data_type (prec, block_size, |
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2259 input_type, output_type); |
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|
2260 } |
22327
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|
2261 catch (octave::execution_exception& e) |
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2262 { |
20756
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|
2263 error (e, "fread: invalid PRECISION specified"); |
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2264 } |
4944 | 2265 |
20747
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2266 int skip = 0; |
3202 | 2267 |
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2268 try |
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|
2269 { |
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|
2270 skip = skip_arg.int_value (true); |
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2271 } |
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|
2272 catch (octave::execution_exception& e) |
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2273 { |
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2274 error (e, "fread: SKIP must be an integer"); |
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2275 } |
2116 | 2276 |
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2277 std::string arch = arch_arg.xstring_value ("fread: ARCH architecture type must be a string"); |
2116 | 2278 |
21739
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2279 octave::mach_info::float_format flt_fmt |
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2280 = octave::mach_info::string_to_float_format (arch); |
20741
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2281 |
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2282 return os.read (size, block_size, input_type, output_type, skip, |
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2283 flt_fmt, count); |
2116 | 2284 } |
2285 | |
2286 DEFUN (fread, args, , | |
21966
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2287 doc: /* -*- texinfo -*- |
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2288 @deftypefn {} {@var{val} =} fread (@var{fid}) |
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2289 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}) |
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2290 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision}) |
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2291 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision}, @var{skip}) |
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2292 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision}, @var{skip}, @var{arch}) |
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2293 @deftypefnx {} {[@var{val}, @var{count}] =} fread (@dots{}) |
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2294 Read binary data from the file specified by the file descriptor @var{fid}. |
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2295 |
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2296 The optional argument @var{size} specifies the amount of data to read |
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2297 and may be one of |
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2298 |
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2299 @table @code |
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2300 @item Inf |
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2301 Read as much as possible, returning a column vector. |
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2302 |
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2303 @item @var{nr} |
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2304 Read up to @var{nr} elements, returning a column vector. |
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2305 |
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2306 @item [@var{nr}, Inf] |
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2307 Read as much as possible, returning a matrix with @var{nr} rows. If the |
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2308 number of elements read is not an exact multiple of @var{nr}, the last |
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2309 column is padded with zeros. |
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2310 |
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2311 @item [@var{nr}, @var{nc}] |
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2312 Read up to @code{@var{nr} * @var{nc}} elements, returning a matrix with |
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2313 @var{nr} rows. If the number of elements read is not an exact multiple |
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2314 of @var{nr}, the last column is padded with zeros. |
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2315 @end table |
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2316 |
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2317 @noindent |
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2318 If @var{size} is omitted, a value of @code{Inf} is assumed. |
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2319 |
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2320 The optional argument @var{precision} is a string specifying the type of |
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2321 data to read and may be one of |
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2322 |
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2323 @table @asis |
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2324 @item @qcode{"schar"} |
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2325 @itemx @qcode{"signed char"} |
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2326 Signed character. |
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changeset
|
2327 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2328 @item @qcode{"uchar"} |
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
|
2329 @itemx @qcode{"unsigned 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
changeset
|
2330 Unsigned character. |
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
|
2331 |
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
|
2332 @item @qcode{"int8"} |
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
|
2333 @itemx @qcode{"integer*1"} |
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
|
2334 |
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
|
2335 8-bit signed integer. |
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
|
2336 |
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
|
2337 @item @qcode{"int16"} |
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
|
2338 @itemx @qcode{"integer*2"} |
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
|
2339 16-bit signed integer. |
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
|
2340 |
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
|
2341 @item @qcode{"int32"} |
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
|
2342 @itemx @qcode{"integer*4"} |
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
|
2343 32-bit signed integer. |
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
|
2344 |
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
|
2345 @item @qcode{"int64"} |
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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|
2346 @itemx @qcode{"integer*8"} |
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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|
2347 64-bit signed integer. |
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
|
2348 |
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
|
2349 @item @qcode{"uint8"} |
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
|
2350 8-bit unsigned integer. |
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
|
2351 |
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
|
2352 @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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|
2353 16-bit unsigned integer. |
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
|
2354 |
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
|
2355 @item @qcode{"uint32"} |
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
|
2356 32-bit unsigned integer. |
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
|
2357 |
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
|
2358 @item @qcode{"uint64"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2359 64-bit unsigned integer. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2360 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2361 @item @qcode{"single"} |
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
|
2362 @itemx @qcode{"float32"} |
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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|
2363 @itemx @qcode{"real*4"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2364 32-bit floating point number. |
112b20240c87
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
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2366 @item @qcode{"double"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2367 @itemx @qcode{"float64"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2368 @itemx @qcode{"real*8"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2369 64-bit floating point number. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2370 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2371 @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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|
2372 @itemx @qcode{"char*1"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2373 Single character. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2374 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2375 @item @qcode{"short"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2376 Short integer (size is platform dependent). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2377 |
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
|
2378 @item @qcode{"int"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2379 Integer (size is platform dependent). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2380 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2381 @item @qcode{"long"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2382 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
|
2383 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2384 @item @qcode{"ushort"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2385 @itemx @qcode{"unsigned short"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2386 Unsigned short integer (size is platform dependent). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2387 |
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
|
2388 @item @qcode{"uint"} |
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
|
2389 @itemx @qcode{"unsigned int"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2390 Unsigned integer (size is platform dependent). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2391 |
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
|
2392 @item @qcode{"ulong"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2393 @itemx @qcode{"unsigned long"} |
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
|
2394 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
|
2395 |
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
|
2396 @item @qcode{"float"} |
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
|
2397 Single precision floating point number (size is platform dependent). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2398 @end table |
112b20240c87
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diff
changeset
|
2399 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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changeset
|
2400 @noindent |
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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|
2401 The default precision is @qcode{"uchar"}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2402 |
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
|
2403 The @var{precision} argument may also specify an optional repeat |
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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|
2404 count. For example, @samp{32*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>
parents:
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diff
changeset
|
2405 a block of 32 single precision floating point numbers. Reading in |
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
|
2406 blocks is useful in combination with the @var{skip} argument. |
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
|
2407 |
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
|
2408 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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diff
changeset
|
2409 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
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2410 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
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2411 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>
parents:
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diff
changeset
|
2412 form @samp{*TYPE} is shorthand for @samp{TYPE=>TYPE}. |
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
|
2413 |
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
|
2414 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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diff
changeset
|
2415 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
changeset
|
2416 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
changeset
|
2417 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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diff
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|
2418 precision values. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2419 |
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
|
2420 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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diff
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|
2421 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>
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diff
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|
2422 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>
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diff
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|
2423 complete, the final skip is omitted. For example, |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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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diff
changeset
|
2425 @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
|
2426 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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diff
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|
2427 @end example |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2428 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2429 @noindent |
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move docstrings in C++ files out of C strings and into comments
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|
2430 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>
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diff
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|
2431 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
|
2432 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2433 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
John W. Eaton <jwe@octave.org>
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diff
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|
2434 for the file. Valid values are |
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move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2435 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2436 @table @asis |
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move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2437 @item @qcode{"native"} or @qcode{"n"} |
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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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|
2438 The format of the current machine. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2439 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2440 @item @qcode{"ieee-be"} or @qcode{"b"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2441 IEEE big endian. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2442 |
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
|
2443 @item @qcode{"ieee-le"} or @qcode{"l"} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2444 IEEE little endian. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2445 @end table |
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move docstrings in C++ files out of C strings and into comments
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|
2446 |
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
|
2447 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
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2448 created the file descriptor is used. Otherwise, the value specified with |
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
|
2449 @code{fread} overrides that of @code{fopen} and determines the data format. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2450 |
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move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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|
2451 The output argument @var{val} contains the data read from the file. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2452 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2453 The optional return value @var{count} contains the number of elements 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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|
2454 @seealso{fwrite, fgets, fgetl, fscanf, fopen} |
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
|
2455 @end deftypefn */) |
529 | 2456 { |
2116 | 2457 int nargin = args.length (); |
2458 | |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2459 if (nargin < 1 || nargin > 5) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2460 print_usage (); |
2116 | 2461 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2462 octave_stream os = octave_stream_list::lookup (args(0), "fread"); |
2116 | 2463 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2464 octave_value size = lo_ieee_inf_value (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2465 octave_value prec = "uchar"; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2466 octave_value skip = 0; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2467 octave_value arch = "unknown"; |
2116 | 2468 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2469 int idx = 1; |
2116 | 2470 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2471 if (nargin > idx && ! args(idx).is_string ()) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2472 size = args(idx++); |
2116 | 2473 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2474 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
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|
2475 prec = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2476 |
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eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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changeset
|
2477 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2478 skip = args(idx++); |
4257 | 2479 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2480 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
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|
2481 arch = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2482 else if (skip.is_string ()) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2483 { |
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eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2484 arch = skip; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2485 skip = 0; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2486 } |
2116 | 2487 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2488 octave_idx_type count = -1; |
20561
c41595061186
eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20457
diff
changeset
|
2489 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2490 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:
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diff
changeset
|
2491 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2492 return ovl (tmp, count); |
529 | 2493 } |
2494 | |
2116 | 2495 static int |
2496 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
|
2497 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
|
2498 const octave_value& arch_arg) |
2116 | 2499 { |
20700
68e3a747ca02
rename octave_value value extractors that accept error message args
John W. Eaton <jwe@octave.org>
parents:
20687
diff
changeset
|
2500 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
|
2501 |
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2502 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
|
2503 oct_data_conv::data_type output_type; |
2116 | 2504 |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2505 try |
20581
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20561
diff
changeset
|
2506 { |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2507 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
|
2508 } |
22327
d0562b3159c7
move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents:
22323
diff
changeset
|
2509 catch (octave::execution_exception& e) |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2510 { |
20756
200ae1d650b7
propagate octave_execution_exception objects through try/catch blocks
John W. Eaton <jwe@octave.org>
parents:
20747
diff
changeset
|
2511 error (e, "fwrite: invalid PRECISION specified"); |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2512 } |
2116 | 2513 |
20747
ee2743bd07a8
eliminate various compiler warnings
John W. Eaton <jwe@octave.org>
parents:
20741
diff
changeset
|
2514 int skip = 0; |
3202 | 2515 |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2516 try |
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2517 { |
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2518 skip = skip_arg.int_value (true); |
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: SKIP must be an integer"); |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2523 } |
2116 | 2524 |
20741
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2525 std::string arch = arch_arg.xstring_value ("fwrite: ARCH architecture type must be a string"); |
2116 | 2526 |
21739
c4ab2e54f100
use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents:
21736
diff
changeset
|
2527 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
|
2528 = 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
|
2529 |
a5ab31b52ae8
eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents:
20713
diff
changeset
|
2530 return os.write (data, block_size, output_type, skip, flt_fmt); |
2116 | 2531 } |
2532 | |
2533 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
|
2534 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
|
2535 @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:
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diff
changeset
|
2536 @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>
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21942
diff
changeset
|
2537 @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:
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diff
changeset
|
2538 @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
|
2539 @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
|
2540 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
|
2541 @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
|
2542 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
|
2543 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2544 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
|
2545 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
|
2546 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2547 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>
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diff
changeset
|
2548 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>
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diff
changeset
|
2549 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2550 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>
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21942
diff
changeset
|
2551 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>
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diff
changeset
|
2552 @seealso{fread, fputs, fprintf, fopen} |
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
|
2553 @end deftypefn */) |
1181 | 2554 { |
2116 | 2555 int nargin = args.length (); |
2556 | |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2557 if (nargin < 2 || nargin > 5) |
5823 | 2558 print_usage (); |
2116 | 2559 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2560 octave_stream os = octave_stream_list::lookup (args(0), "fwrite"); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
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diff
changeset
|
2561 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2562 octave_value prec = "uchar"; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2563 octave_value skip = 0; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2564 octave_value arch = "unknown"; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2565 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2566 int idx = 1; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2567 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2568 octave_value data = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2569 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2570 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2571 prec = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2572 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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changeset
|
2573 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2574 skip = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2575 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
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changeset
|
2576 if (nargin > idx) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2577 arch = args(idx++); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2578 else if (skip.is_string ()) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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20785
diff
changeset
|
2579 { |
2d6ddb2b157c
eliminate return statements after calls to print_usage
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|
2580 arch = skip; |
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eliminate return statements after calls to print_usage
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|
2581 skip = 0; |
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eliminate return statements after calls to print_usage
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|
2582 } |
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eliminate return statements after calls to print_usage
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|
2583 |
21127
df7891224709
maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
2584 return ovl (do_fwrite (os, data, prec, skip, arch)); |
1181 | 2585 } |
2586 | |
5906 | 2587 DEFUNX ("feof", Ffeof, args, , |
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move docstrings in C++ files out of C strings and into comments
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|
2588 doc: /* -*- texinfo -*- |
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2589 @deftypefn {} {@var{status} =} feof (@var{fid}) |
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2590 Return 1 if an end-of-file condition has been encountered for the file |
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2591 specified by file descriptor @var{fid} and 0 otherwise. |
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2592 |
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|
2593 Note that @code{feof} will only return 1 if the end of the file has already |
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|
2594 been encountered, not if the next read operation will result in an |
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|
2595 end-of-file condition. |
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move docstrings in C++ files out of C strings and into comments
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2596 @seealso{fread, frewind, fseek, fclear, fopen} |
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|
2597 @end deftypefn */) |
529 | 2598 { |
20805
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eliminate return statements after calls to print_usage
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|
2599 if (args.length () != 1) |
5823 | 2600 print_usage (); |
444 | 2601 |
20805
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eliminate return statements after calls to print_usage
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|
2602 octave_stream os = octave_stream_list::lookup (args(0), "feof"); |
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|
2603 |
21127
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maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents:
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|
2604 return ovl (os.eof () ? 1.0 : 0.0); |
444 | 2605 } |
2606 | |
5906 | 2607 DEFUNX ("ferror", Fferror, args, , |
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|
2608 doc: /* -*- texinfo -*- |
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2609 @deftypefn {} {@var{msg} =} ferror (@var{fid}) |
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2610 @deftypefnx {} {[@var{msg}, @var{err}] =} ferror (@var{fid}) |
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2611 @deftypefnx {} {[@var{dots}] =} ferror (@var{fid}, "clear") |
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2612 Query the error status of the stream specified by file descriptor @var{fid} |
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2613 |
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2614 If an error condition exists then return a string @var{msg} describing the |
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2615 error. Otherwise, return an empty string @qcode{""}. |
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2616 |
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2617 The second input @qcode{"clear"} is optional. If supplied, the error |
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2618 state on the stream will be cleared. |
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2619 |
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2620 The optional second output is a numeric indication of the error status. |
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2621 @var{err} is 1 if an error condition has been encountered and 0 otherwise. |
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2622 |
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2623 Note that @code{ferror} indicates if an error has already occurred, not |
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2624 whether the next operation will result in an error condition. |
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2625 @seealso{fclear, fopen} |
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2626 @end deftypefn */) |
1230 | 2627 { |
2095 | 2628 int nargin = args.length (); |
1230 | 2629 |
20805
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|
2630 if (nargin < 1 || nargin > 2) |
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|
2631 print_usage (); |
1230 | 2632 |
20805
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|
2633 octave_stream os = octave_stream_list::lookup (args(0), "ferror"); |
1230 | 2634 |
20805
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|
2635 bool clear = false; |
2095 | 2636 |
20805
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2637 if (nargin == 2) |
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2638 { |
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|
2639 std::string opt = args(1).string_value (); |
20561
c41595061186
eliminate more simple uses of error_state
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|
2640 |
20805
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2641 clear = (opt == "clear"); |
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2642 } |
1755 | 2643 |
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|
2644 int error_number = 0; |
1230 | 2645 |
20805
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2646 std::string error_message = os.error (clear, error_number); |
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|
2647 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
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|
2648 return ovl (error_message, error_number); |
1230 | 2649 } |
2650 | |
18477
aa7ca90ce746
avoid problems if popen is a macro
John W. Eaton <jwe@octave.org>
parents:
18040
diff
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|
2651 DEFUNX ("popen", Fpopen, args, , |
21966
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|
2652 doc: /* -*- texinfo -*- |
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2653 @deftypefn {} {@var{fid} =} popen (@var{command}, @var{mode}) |
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2654 Start a process and create a pipe. |
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2655 |
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|
2656 The name of the command to run is given by @var{command}. The argument |
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move docstrings in C++ files out of C strings and into comments
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|
2657 @var{mode} may be |
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2658 |
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|
2659 @table @code |
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|
2660 @item @qcode{"r"} |
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2661 The pipe will be connected to the standard output of the process, and |
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move docstrings in C++ files out of C strings and into comments
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2662 open for reading. |
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|
2663 |
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2664 @item @qcode{"w"} |
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2665 The pipe will be connected to the standard input of the process, and |
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2666 open for writing. |
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2667 @end table |
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2668 |
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|
2669 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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|
2670 process is returned in @var{fid}. |
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|
2671 |
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|
2672 For example: |
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|
2673 |
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2674 @example |
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2675 @group |
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2676 fid = popen ("ls -ltr / | tail -3", "r"); |
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2677 while (ischar (s = fgets (fid))) |
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2678 fputs (stdout, s); |
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2679 endwhile |
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2680 |
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2681 @print{} drwxr-xr-x 33 root root 3072 Feb 15 13:28 etc |
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2682 @print{} drwxr-xr-x 3 root root 1024 Feb 15 13:28 lib |
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2683 @print{} drwxrwxrwt 15 root root 2048 Feb 17 14:53 tmp |
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2684 @end group |
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2685 @end example |
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2686 @seealso{popen2} |
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2687 @end deftypefn */) |
1230 | 2688 { |
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2689 if (args.length () != 2) |
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|
2690 print_usage (); |
1230 | 2691 |
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|
2692 std::string name = args(0).xstring_value ("popen: COMMAND must be a string"); |
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|
2693 std::string mode = args(1).xstring_value ("popen: MODE must be a string"); |
1230 | 2694 |
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|
2695 octave_value retval; |
6f0bd96f93c0
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|
2696 |
20805
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2697 if (mode == "r") |
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|
2698 { |
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|
2699 octave_stream ips = octave_iprocstream::create (name); |
1230 | 2700 |
20805
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|
2701 retval = octave_stream_list::insert (ips); |
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2702 } |
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2703 else if (mode == "w") |
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2704 { |
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|
2705 octave_stream ops = octave_oprocstream::create (name); |
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|
2706 |
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|
2707 retval = octave_stream_list::insert (ops); |
2095 | 2708 } |
1230 | 2709 else |
20805
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|
2710 error ("popen: invalid MODE specified"); |
1230 | 2711 |
2712 return retval; | |
2713 } | |
2714 | |
16308
122c1a7a3004
avoid trouble if pclose is a macro
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|
2715 DEFUNX ("pclose", Fpclose, args, , |
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2716 doc: /* -*- texinfo -*- |
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diff
changeset
|
2717 @deftypefn {} {} pclose (@var{fid}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2718 Close a file identifier that was opened by @code{popen}. |
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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|
2719 |
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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|
2720 The function @code{fclose} may also be used for the same purpose. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2721 @seealso{fclose, popen} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2722 @end deftypefn */) |
1230 | 2723 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2724 if (args.length () != 1) |
5823 | 2725 print_usage (); |
1379 | 2726 |
21127
df7891224709
maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
2727 return ovl (octave_stream_list::remove (args(0), "pclose")); |
1379 | 2728 } |
2729 | |
19278
6ca096827123
Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents:
19268
diff
changeset
|
2730 DEFUN (tempname, 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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|
2731 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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changeset
|
2732 @deftypefn {} {@var{fname} =} tempname () |
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
|
2733 @deftypefnx {} {@var{fname} =} tempname (@var{dir}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2734 @deftypefnx {} {@var{fname} =} tempname (@var{dir}, @var{prefix}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2735 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>
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diff
changeset
|
2736 |
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
|
2737 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
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diff
changeset
|
2738 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
2739 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>
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|
2740 (@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>
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diff
changeset
|
2741 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>
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diff
changeset
|
2742 |
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
|
2743 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
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diff
changeset
|
2744 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>
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diff
changeset
|
2745 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>
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diff
changeset
|
2746 see @code{tmpfile}. |
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
|
2747 @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>
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diff
changeset
|
2748 @end deftypefn */) |
1802 | 2749 { |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20805
diff
changeset
|
2750 int nargin = args.length (); |
2936 | 2751 |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20805
diff
changeset
|
2752 if (nargin > 2) |
5823 | 2753 print_usage (); |
1802 | 2754 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2755 std::string dir; |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2756 |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20805
diff
changeset
|
2757 if (nargin > 0) |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2758 dir = args(0).xstring_value ("tempname: DIR must be a string"); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
changeset
|
2759 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2760 std::string pfx ("oct-"); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2761 |
20812
d9ca869ca124
maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents:
20805
diff
changeset
|
2762 if (nargin > 1) |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2763 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>
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diff
changeset
|
2764 |
21733
cb0fdd941d84
use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
2765 return ovl (octave::sys::tempnam (dir, pfx)); |
1802 | 2766 } |
2767 | |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2768 /* |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
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diff
changeset
|
2769 %!test |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2770 %! if (ispc ()) |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2771 %! envname = "TMP"; |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2772 %! else |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2773 %! envname = "TMPDIR"; |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2774 %! endif |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2775 %! 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
|
2776 %! unsetenv (envname); |
21457
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2777 %! ## 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
|
2778 %! 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
|
2779 %! 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
|
2780 %! def_tmpdir(end) = []; |
05ffef4ebf62
tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents:
21301
diff
changeset
|
2781 %! endwhile |
19420
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2782 %! unwind_protect |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2783 %! ## 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
|
2784 %! fname = tempname (); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2785 %! [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
|
2786 %! 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
|
2787 %! assert (tmpfname (1:4), "oct-"); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2788 %! ## 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
|
2789 %! 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
|
2790 %! 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
|
2791 %! 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
|
2792 %! fname = tempname (tmp_tmpdir); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2793 %! [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
|
2794 %! 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
|
2795 %! 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
|
2796 %! ## 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
|
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 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
|
2802 %! fname = tempname (tmp_tmpdir, "pfx-"); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2803 %! [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
|
2804 %! 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
|
2805 %! 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
|
2806 %! ## 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
|
2807 %! fname = tempname (tmp_tmpdir, ""); |
19597
db92e7e28e1f
strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents:
19420
diff
changeset
|
2808 %! [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
|
2809 %! 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
|
2810 %! 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
|
2811 %! 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
|
2812 %! 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
|
2813 %! 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
|
2814 %! unsetenv (envname); |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2815 %! else |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2816 %! 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
|
2817 %! endif |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2818 %! 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
|
2819 */ |
82f2a3437e02
Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents:
19403
diff
changeset
|
2820 |
4326 | 2821 DEFUN (tmpfile, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
21942
diff
changeset
|
2822 doc: /* -*- texinfo -*- |
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
|
2823 @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>
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21942
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changeset
|
2824 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
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changeset
|
2825 name. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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21942
diff
changeset
|
2826 |
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
|
2827 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
|
2828 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
|
2829 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2830 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
|
2831 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
|
2832 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
|
2833 @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
|
2834 @end deftypefn */) |
4326 | 2835 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2836 if (args.length () != 0) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2837 print_usage (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2838 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2839 octave_value_list retval; |
4326 | 2840 |
21991
80659e58609f
provide wrapper for tmpfile (bug #48337)
John W. Eaton <jwe@octave.org>
parents:
21966
diff
changeset
|
2841 FILE *fid = octave_tmpfile_wrapper (); |
4326 | 2842 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2843 if (fid) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2844 { |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2845 std::string nm; |
4326 | 2846 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2847 std::ios::openmode md = fopen_mode_to_ios_mode ("w+b"); |
4326 | 2848 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2849 octave_stream s = octave_stdiostream::create (nm, fid, md); |
4326 | 2850 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2851 if (! s) |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2852 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
|
2853 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2854 retval = ovl (octave_stream_list::insert (s), ""); |
4326 | 2855 } |
2856 else | |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2857 { |
21942
aab79a1885cc
limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents:
21919
diff
changeset
|
2858 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
|
2859 } |
4326 | 2860 |
2861 return retval; | |
2862 } | |
2863 | |
2864 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
|
2865 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
|
2866 @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
|
2867 @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
|
2868 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
|
2869 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
|
2870 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2871 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
|
2872 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
|
2873 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
|
2874 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
|
2875 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
|
2876 @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
|
2877 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2878 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
|
2879 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
|
2880 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2881 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
|
2882 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
|
2883 @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
|
2884 message. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2885 @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
|
2886 @end deftypefn */) |
4326 | 2887 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2888 int nargin = args.length (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2889 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2890 if (nargin < 1 || nargin > 2) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2891 print_usage (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2892 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2893 std::string tmpl8 = args(0).xstring_value ("mkstemp: TEMPLATE argument must be a string"); |
4326 | 2894 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2895 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
|
2896 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2897 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
|
2898 strcpy (tmp, tmpl8.c_str ()); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2899 |
21888
00f1249f2483
create wrappers for some gnulib functions
John W. Eaton <jwe@octave.org>
parents:
21852
diff
changeset
|
2900 int fd = octave_mkostemp_wrapper (tmp); |
4326 | 2901 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2902 if (fd < 0) |
4326 | 2903 { |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2904 retval(0) = fd; |
21942
aab79a1885cc
limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents:
21919
diff
changeset
|
2905 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
|
2906 } |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2907 else |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2908 { |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2909 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
|
2910 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2911 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
|
2912 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2913 if (! fid) |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2914 { |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2915 retval(0) = -1; |
21942
aab79a1885cc
limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents:
21919
diff
changeset
|
2916 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
|
2917 } |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2918 else |
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 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
|
2921 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2922 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
|
2923 |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2924 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
|
2925 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2926 if (! s) |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2927 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
|
2928 |
20884
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2929 retval(0) = octave_stream_list::insert (s); |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2930 retval(1) = nm; |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2931 |
f1b2a2dbc0e1
2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents:
20861
diff
changeset
|
2932 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
|
2933 mark_for_deletion (nm); |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10259
diff
changeset
|
2934 } |
4326 | 2935 } |
2936 | |
2937 return retval; | |
2938 } | |
2939 | |
20200
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
20198
diff
changeset
|
2940 // 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
|
2941 // Maybe change to be a general utility routine. |
1400 | 2942 static int |
2943 convert (int x, int ibase, int obase) | |
2944 { | |
2945 int retval = 0; | |
2946 | |
2947 int tmp = x % obase; | |
2948 | |
2949 if (tmp > ibase - 1) | |
20428
7ac907da9fba
Use error() rather than ::error() unless explicitly required.
Rik <rik@octave.org>
parents:
20200
diff
changeset
|
2950 error ("umask: invalid digit"); |
21055
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2951 |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2952 retval = tmp; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2953 int mult = ibase; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2954 while ((x = (x - tmp) / obase)) |
1400 | 2955 { |
21055
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2956 tmp = x % obase; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2957 |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2958 if (tmp > ibase - 1) |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2959 error ("umask: invalid digit"); |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2960 |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2961 retval += mult * tmp; |
5e00ed38a58b
maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents:
20962
diff
changeset
|
2962 mult *= ibase; |
1400 | 2963 } |
2964 | |
2965 return retval; | |
2966 } | |
2967 | |
10197
4d433bd2d4dc
attempt to avoid trouble with gnulib #defines in a consistent way
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
2968 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
|
2969 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
|
2970 @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
|
2971 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
|
2972 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21942
diff
changeset
|
2973 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
|
2974 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2975 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
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parents:
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diff
changeset
|
2976 interpreted as an octal number); otherwise an error message is printed. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
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2977 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
2978 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:
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diff
changeset
|
2979 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:
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diff
changeset
|
2980 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:
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diff
changeset
|
2981 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
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parents:
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diff
changeset
|
2982 for the new object are @code{@var{mode} - @var{mask}}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
2983 @seealso{fopen, mkdir, mkfifo} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
2984 @end deftypefn */) |
1400 | 2985 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
2986 if (args.length () != 1) |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2987 print_usage (); |
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
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diff
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|
2988 |
2d6ddb2b157c
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
2989 int mask = args(0).xint_value ("umask: MASK must be an integer"); |
1400 | 2990 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
2991 if (mask < 0) |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2992 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
|
2993 |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
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20898
diff
changeset
|
2994 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
|
2995 |
21733
cb0fdd941d84
use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
2996 int status = convert (octave::sys::umask (oct_mask), 10, 8); |
1400 | 2997 |
2998 if (status >= 0) | |
20918
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
2999 return ovl (status); |
6f0bd96f93c0
maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents:
20898
diff
changeset
|
3000 else |
20941
a4f5da7c5463
maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
parents:
20940
diff
changeset
|
3001 return ovl (); |
1400 | 3002 } |
3003 | |
5749 | 3004 static octave_value |
6483 | 3005 const_value (const char *, const octave_value_list& args, int val) |
2189 | 3006 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3007 if (args.length () != 0) |
5823 | 3008 print_usage (); |
5749 | 3009 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3010 return octave_value (val); |
5749 | 3011 } |
3012 | |
3013 DEFUNX ("P_tmpdir", FP_tmpdir, args, , | |
21966
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|
3014 doc: /* -*- texinfo -*- |
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|
3015 @deftypefn {} {} P_tmpdir () |
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changeset
|
3016 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>
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|
3017 temporary files. |
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diff
changeset
|
3018 |
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changeset
|
3019 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
|
3020 default location. This value may not agree with that returned from |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
3021 @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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|
3022 environment variable. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3023 @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:
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diff
changeset
|
3024 @end deftypefn */) |
5749 | 3025 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3026 if (args.length () != 0) |
5823 | 3027 print_usage (); |
5749 | 3028 |
21127
df7891224709
maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents:
21126
diff
changeset
|
3029 return ovl (get_P_tmpdir ()); |
5749 | 3030 } |
2341 | 3031 |
5749 | 3032 // NOTE: the values of SEEK_SET, SEEK_CUR, and SEEK_END have to be |
3033 // this way for Matlab compatibility. | |
3034 | |
3035 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
|
3036 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
3037 @deftypefn {} {} SEEK_SET () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
3038 @deftypefnx {} {} SEEK_CUR () |
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move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3039 @deftypefnx {} {} SEEK_END () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
3040 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
|
3041 following actions: |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3042 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
3043 @table @code |
112b20240c87
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diff
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|
3044 @item SEEK_SET |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
3045 Position file relative to the beginning. |
112b20240c87
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diff
changeset
|
3046 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
3047 @item 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
|
3048 Position file relative to the current position. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3049 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3050 @item SEEK_END |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3051 Position file relative to the end. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
3052 @end table |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
3053 @seealso{fseek} |
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 @end deftypefn */) |
5749 | 3055 { |
3056 return const_value ("SEEK_SET", args, -1); | |
3057 } | |
2189 | 3058 |
5749 | 3059 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:
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diff
changeset
|
3060 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3061 @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
|
3062 Return the numerical value to pass to @code{fseek} to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3063 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>
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diff
changeset
|
3064 @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:
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diff
changeset
|
3065 @end deftypefn */) |
5749 | 3066 { |
3067 return const_value ("SEEK_CUR", args, 0); | |
3068 } | |
2189 | 3069 |
5749 | 3070 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:
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diff
changeset
|
3071 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
3072 @deftypefn {} {} SEEK_END () |
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
|
3073 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
|
3074 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
|
3075 @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
|
3076 @end deftypefn */) |
5749 | 3077 { |
3078 return const_value ("SEEK_END", args, 1); | |
3079 } | |
3080 | |
3081 static octave_value | |
6483 | 3082 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
|
3083 const octave_value& val) |
5749 | 3084 { |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3085 if (args.length () != 0) |
5823 | 3086 print_usage (); |
5749 | 3087 |
20805
2d6ddb2b157c
eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents:
20785
diff
changeset
|
3088 return octave_value (val); |
5749 | 3089 } |
3090 | |
3091 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
|
3092 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3093 @deftypefn {} {} stdin () |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
3094 Return the numeric value corresponding to the standard input stream. |
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diff
changeset
|
3095 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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21942
diff
changeset
|
3096 When Octave is used interactively, stdin is filtered through the command |
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
|
3097 line editing functions. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3098 @seealso{stdout, stderr} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
3099 @end deftypefn */) |
5749 | 3100 { |
3101 return const_value ("stdin", args, stdin_file); | |
3102 } | |
2189 | 3103 |
5749 | 3104 DEFUNX ("stdout", Fstdout, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
3105 doc: /* -*- texinfo -*- |
112b20240c87
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diff
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|
3106 @deftypefn {} {} stdout () |
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 output stream. |
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diff
changeset
|
3108 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
3109 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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|
3110 @seealso{stdin, stderr} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
3111 @end deftypefn */) |
5749 | 3112 { |
3113 return const_value ("stdout", args, stdout_file); | |
3114 } | |
2189 | 3115 |
5749 | 3116 DEFUNX ("stderr", Fstderr, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
3117 doc: /* -*- texinfo -*- |
112b20240c87
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|
3118 @deftypefn {} {} stderr () |
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move docstrings in C++ files out of C strings and into comments
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|
3119 Return the numeric value corresponding to the standard error stream. |
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|
3120 |
112b20240c87
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|
3121 Even if paging is turned on, the standard error is not sent to the pager. |
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move docstrings in C++ files out of C strings and into comments
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|
3122 It is useful for error messages and prompts. |
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move docstrings in C++ files out of C strings and into comments
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|
3123 @seealso{stdin, stdout} |
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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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|
3124 @end deftypefn */) |
5749 | 3125 { |
3126 return const_value ("stderr", args, stderr_file); | |
2189 | 3127 } |
22407
34ce5be04942
maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents:
22327
diff
changeset
|
3128 |