Mercurial > octave
annotate liboctave/system/oct-env.cc @ 19597:db92e7e28e1f
strip trailing whitespace from most source files
* NEWS, doc/interpreter/contributors.in, doc/interpreter/func.txi,
doc/interpreter/genpropdoc.m, doc/interpreter/octave_logo.eps,
doc/interpreter/plot.txi, doc/interpreter/stmt.txi,
examples/data/Makefile.am, libinterp/corefcn/data.cc,
libinterp/corefcn/debug.cc, libinterp/corefcn/error.cc,
libinterp/corefcn/file-io.cc, libinterp/corefcn/gl-render.cc,
libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h,
libinterp/corefcn/load-path.cc, libinterp/corefcn/pr-output.cc,
libinterp/corefcn/pt-jit.cc, libinterp/corefcn/strfind.cc,
libinterp/corefcn/toplev.cc, libinterp/corefcn/toplev.h,
libinterp/corefcn/urlwrite.cc, libinterp/corefcn/variables.cc,
libinterp/octave-value/ov-classdef.cc,
libinterp/octave-value/ov-classdef.h, libinterp/octave.cc,
libinterp/parse-tree/lex.h, libinterp/parse-tree/oct-parse.in.yy,
libinterp/parse-tree/pt-classdef.h, liboctave/system/file-ops.cc,
liboctave/system/oct-env.cc, m4/acinclude.m4,
scripts/deprecated/finite.m, scripts/deprecated/fmod.m,
scripts/deprecated/fnmatch.m, scripts/deprecated/luinc.m,
scripts/deprecated/octave_tmp_file_name.m, scripts/deprecated/syl.m,
scripts/deprecated/usage.m, scripts/general/inputParser.m,
scripts/general/interp1.m, scripts/general/interp2.m,
scripts/general/interp3.m, scripts/general/isequal.m,
scripts/general/private/__isequal__.m, scripts/geometry/voronoi.m,
scripts/image/image.m, scripts/image/imshow.m,
scripts/image/ind2rgb.m, scripts/linear-algebra/bandwidth.m,
scripts/linear-algebra/isbanded.m, scripts/miscellaneous/bzip2.m,
scripts/miscellaneous/cast.m, scripts/miscellaneous/copyfile.m,
scripts/miscellaneous/delete.m, scripts/miscellaneous/fullfile.m,
scripts/miscellaneous/getappdata.m, scripts/miscellaneous/gunzip.m,
scripts/miscellaneous/isappdata.m, scripts/miscellaneous/ls.m,
scripts/miscellaneous/mex.m, scripts/miscellaneous/movefile.m,
scripts/miscellaneous/orderfields.m, scripts/miscellaneous/recycle.m,
scripts/miscellaneous/rmappdata.m, scripts/miscellaneous/setfield.m,
scripts/miscellaneous/symvar.m, scripts/miscellaneous/tar.m,
scripts/miscellaneous/tmpnam.m, scripts/miscellaneous/unpack.m,
scripts/miscellaneous/ver.m, scripts/miscellaneous/what.m,
scripts/miscellaneous/xor.m, scripts/miscellaneous/zip.m,
scripts/optimization/fminbnd.m, scripts/optimization/sqp.m,
scripts/path/private/getsavepath.m, scripts/path/savepath.m,
scripts/pkg/pkg.m, scripts/pkg/private/installed_packages.m,
scripts/plot/draw/plotyy.m, scripts/plot/draw/polar.m,
scripts/plot/draw/private/__quiver__.m,
scripts/plot/draw/private/__scatter__.m,
scripts/plot/draw/private/__stem__.m, scripts/plot/draw/surface.m,
scripts/plot/draw/surfnorm.m, scripts/plot/util/copyobj.m,
scripts/plot/util/hgload.m, scripts/plot/util/hgsave.m,
scripts/plot/util/isprop.m, scripts/plot/util/linkprop.m,
scripts/plot/util/private/__go_draw_axes__.m, scripts/set/setdiff.m,
scripts/set/union.m, scripts/signal/periodogram.m,
scripts/sparse/eigs.m, scripts/sparse/ilu.m, scripts/sparse/qmr.m,
scripts/sparse/sprand.m, scripts/sparse/sprandn.m,
scripts/specfun/beta.m, scripts/specfun/ellipke.m,
scripts/specfun/isprime.m, scripts/statistics/base/lscov.m,
scripts/testfun/__run_test_suite__.m, scripts/testfun/test.m:
Strip trailing whitespace.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 20 Jan 2015 10:29:54 -0500 |
| parents | f765fea3ca14 |
| children | 4197fc428c7d |
| rev | line source |
|---|---|
| 2926 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1996-2013 John W. Eaton |
| 2926 | 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. | |
| 2926 | 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/>. | |
| 2926 | 20 |
| 21 */ | |
| 22 | |
| 23 /* | |
| 24 | |
| 25 The functions listed below were adapted from a similar functions | |
| 26 from GNU Bash, the Bourne Again SHell, copyright (C) 1987, 1989, 1991 | |
| 27 Free Software Foundation, Inc. | |
| 28 | |
| 29 octave_env::do_absolute_pathname | |
| 30 octave_env::do_base_pathname | |
| 31 octave_env::do_chdir | |
| 32 octave_env::do_getcwd | |
| 33 octave_env::do_make_absolute | |
| 34 octave_env::do_polite_directory_format | |
| 35 octave_env::pathname_backup | |
| 36 | |
|
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37 */ |
| 2926 | 38 |
| 39 #ifdef HAVE_CONFIG_H | |
| 40 #include <config.h> | |
| 41 #endif | |
| 42 | |
| 4093 | 43 #include <cctype> |
| 2926 | 44 #include <cstdlib> |
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45 #include <cstring> |
| 4093 | 46 |
| 3504 | 47 #include <string> |
| 2926 | 48 |
| 49 #include <sys/types.h> | |
| 50 #include <unistd.h> | |
| 51 | |
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52 #include "progname.h" |
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53 |
| 4097 | 54 #include "file-ops.h" |
| 2926 | 55 #include "lo-error.h" |
| 56 #include "lo-sysdep.h" | |
| 57 #include "lo-utils.h" | |
| 58 #include "oct-env.h" | |
| 2934 | 59 #include "oct-passwd.h" |
| 2947 | 60 #include "oct-syscalls.h" |
|
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61 #include "singleton-cleanup.h" |
| 2926 | 62 |
| 63 octave_env::octave_env (void) | |
| 64 : follow_symbolic_links (true), verbatim_pwd (true), | |
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65 current_directory (), prog_name (), prog_invocation_name (), |
| 2926 | 66 user_name (), host_name () |
| 67 { | |
| 68 // Get a real value for the current directory. | |
| 69 do_getcwd (); | |
| 70 | |
| 71 // Etc. | |
| 72 do_get_user_name (); | |
| 73 | |
| 74 do_get_host_name (); | |
| 75 } | |
| 76 | |
| 77 octave_env *octave_env::instance = 0; | |
| 78 | |
| 79 bool | |
| 80 octave_env::instance_ok (void) | |
| 81 { | |
| 82 bool retval = true; | |
| 83 | |
| 84 if (! instance) | |
|
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85 { |
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86 instance = new octave_env (); |
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87 |
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88 if (instance) |
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89 singleton_cleanup_list::add (cleanup_instance); |
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90 } |
| 2926 | 91 |
| 92 if (! instance) | |
| 93 { | |
| 94 (*current_liboctave_error_handler) | |
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95 ("unable to create current working directory object!"); |
| 2926 | 96 |
| 97 retval = false; | |
| 98 } | |
| 99 | |
| 100 return retval; | |
| 101 } | |
| 102 | |
| 3504 | 103 std::string |
| 104 octave_env::polite_directory_format (const std::string& name) | |
| 2926 | 105 { |
| 106 return (instance_ok ()) | |
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107 ? instance->do_polite_directory_format (name) : std::string (); |
| 2926 | 108 } |
| 109 | |
| 110 bool | |
| 3504 | 111 octave_env::absolute_pathname (const std::string& s) |
| 2926 | 112 { |
| 113 return (instance_ok ()) | |
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114 ? instance->do_absolute_pathname (s) : false; |
| 2926 | 115 } |
| 116 | |
| 6838 | 117 bool |
| 118 octave_env::rooted_relative_pathname (const std::string& s) | |
| 119 { | |
| 120 return (instance_ok ()) | |
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121 ? instance->do_rooted_relative_pathname (s) : false; |
| 6838 | 122 } |
| 123 | |
| 3504 | 124 std::string |
| 125 octave_env::base_pathname (const std::string& s) | |
| 2926 | 126 { |
| 127 return (instance_ok ()) | |
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128 ? instance->do_base_pathname (s) : std::string (); |
| 2926 | 129 } |
| 130 | |
| 3504 | 131 std::string |
| 132 octave_env::make_absolute (const std::string& s, const std::string& dot_path) | |
| 2926 | 133 { |
| 134 return (instance_ok ()) | |
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135 ? instance->do_make_absolute (s, dot_path) : std::string (); |
| 2926 | 136 } |
| 137 | |
| 3504 | 138 std::string |
| 10250 | 139 octave_env::get_current_directory () |
| 2926 | 140 { |
| 141 return (instance_ok ()) | |
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142 ? instance->do_getcwd () : std::string (); |
| 2926 | 143 } |
| 144 | |
| 3504 | 145 std::string |
| 2926 | 146 octave_env::get_home_directory () |
| 147 { | |
| 148 return (instance_ok ()) | |
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149 ? instance->do_get_home_directory () : std::string (); |
| 2926 | 150 } |
| 151 | |
| 3504 | 152 std::string |
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153 octave_env::get_temp_directory () |
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154 { |
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155 return (instance_ok ()) |
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156 ? instance->do_get_temp_directory () : std::string (); |
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157 } |
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158 |
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159 std::string |
| 2926 | 160 octave_env::get_program_name (void) |
| 161 { | |
| 162 return (instance_ok ()) | |
|
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163 ? instance->prog_name : std::string (); |
| 2926 | 164 } |
| 165 | |
| 3504 | 166 std::string |
| 2926 | 167 octave_env::get_program_invocation_name (void) |
| 168 { | |
| 169 return (instance_ok ()) | |
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170 ? instance->prog_invocation_name : std::string (); |
| 2926 | 171 } |
| 172 | |
| 173 void | |
| 3504 | 174 octave_env::set_program_name (const std::string& s) |
| 2926 | 175 { |
| 176 if (instance_ok ()) | |
| 177 instance->do_set_program_name (s); | |
| 178 } | |
| 179 | |
| 3504 | 180 std::string |
| 2926 | 181 octave_env::get_user_name (void) |
| 182 { | |
| 183 return (instance_ok ()) | |
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184 ? instance->do_get_user_name () : std::string (); |
| 2926 | 185 } |
| 186 | |
| 3504 | 187 std::string |
| 2926 | 188 octave_env::get_host_name (void) |
| 189 { | |
| 190 return (instance_ok ()) | |
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191 ? instance->do_get_host_name () : std::string (); |
| 2926 | 192 } |
| 193 | |
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194 std::string |
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195 octave_env::do_get_temp_directory (void) const |
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196 { |
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197 std::string tempd; |
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198 |
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199 #if defined (__MINGW32__) || defined (_MSC_VER) |
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200 |
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201 tempd = do_getenv ("TEMP"); |
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202 |
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203 if (tempd.empty ()) |
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204 tempd = do_getenv ("TMP"); |
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205 |
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206 #if defined (P_tmpdir) |
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207 if (tempd.empty ()) |
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208 tempd = P_tmpdir; |
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209 #endif |
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210 |
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211 // Some versions of MinGW and MSVC either don't define P_tmpdir, or |
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212 // define it to a single backslash. In such cases just use C:\temp. |
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213 if (tempd.empty () || tempd == "\\") |
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214 tempd = "c:\\temp"; |
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215 |
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216 #else // Unix-like OS |
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217 |
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218 tempd = do_getenv ("TMP"); |
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219 |
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220 #if defined (P_tmpdir) |
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221 if (tempd.empty ()) |
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222 tempd = P_tmpdir; |
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223 #else |
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224 if (tempd.empty ()) |
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225 tempd = "/tmp"; |
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226 #endif |
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227 |
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228 #endif |
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229 |
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230 return tempd; |
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231 } |
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232 |
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233 // FIXME: this leaves no way to distinguish between a |
| 2926 | 234 // variable that is not set and one that is set to the empty string. |
| 235 // Is this a problem? | |
| 236 | |
| 3504 | 237 std::string |
| 238 octave_env::getenv (const std::string& name) | |
| 2926 | 239 { |
| 240 return (instance_ok ()) | |
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241 ? instance->do_getenv (name) : std::string (); |
| 2926 | 242 } |
| 243 | |
| 244 void | |
| 3504 | 245 octave_env::putenv (const std::string& name, const std::string& value) |
| 2926 | 246 { |
| 247 octave_putenv (name, value); | |
| 248 } | |
| 249 | |
| 250 bool | |
| 5489 | 251 octave_env::have_x11_display (void) |
| 252 { | |
| 253 std::string display = getenv ("DISPLAY"); | |
| 254 | |
| 255 return ! display.empty (); | |
| 256 } | |
| 257 | |
| 258 bool | |
| 3504 | 259 octave_env::chdir (const std::string& newdir) |
| 2926 | 260 { |
| 261 return (instance_ok ()) | |
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262 ? instance->do_chdir (newdir) : false; |
| 2926 | 263 } |
| 264 | |
| 265 void | |
| 3504 | 266 octave_env::do_set_program_name (const std::string& s) const |
| 2926 | 267 { |
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268 // For gnulib. |
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269 ::set_program_name (s.c_str ()); |
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270 |
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271 // Let gnulib strip off things like the "lt-" prefix from libtool. |
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272 prog_invocation_name = program_name; |
| 2926 | 273 |
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274 size_t pos |
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275 = prog_invocation_name.find_last_of (file_ops::dir_sep_chars ()); |
| 2926 | 276 |
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277 // Also keep a shortened version of the program name. |
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278 prog_name = (pos == std::string::npos) |
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279 ? prog_invocation_name : prog_invocation_name.substr (pos+1); |
| 2926 | 280 } |
| 281 | |
| 282 // Return a pretty pathname. If the first part of the pathname is the | |
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283 // same as $HOME, then replace that with '~'. |
| 2926 | 284 |
| 3504 | 285 std::string |
| 286 octave_env::do_polite_directory_format (const std::string& name) const | |
| 2926 | 287 { |
| 3504 | 288 std::string retval; |
| 2926 | 289 |
| 3504 | 290 std::string home_dir = do_get_home_directory (); |
| 2926 | 291 |
| 292 size_t len = home_dir.length (); | |
| 293 | |
| 3516 | 294 if (len > 1 && home_dir == name.substr (0, len) |
| 4097 | 295 && (name.length () == len || file_ops::is_dir_sep (name[len]))) |
| 2926 | 296 { |
| 297 retval = "~"; | |
| 298 retval.append (name.substr (len)); | |
| 299 } | |
| 300 else | |
| 301 retval = name; | |
| 302 | |
| 303 return retval; | |
| 304 } | |
| 305 | |
| 306 bool | |
| 3504 | 307 octave_env::do_absolute_pathname (const std::string& s) const |
| 2926 | 308 { |
| 4087 | 309 size_t len = s.length (); |
| 310 | |
| 311 if (len == 0) | |
| 312 return false; | |
| 2926 | 313 |
| 4097 | 314 if (file_ops::is_dir_sep (s[0])) |
| 2926 | 315 return true; |
| 316 | |
| 4101 | 317 #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) |
| 4088 | 318 if ((len == 2 && isalpha (s[0]) && s[1] == ':') |
| 4097 | 319 || (len > 2 && isalpha (s[0]) && s[1] == ':' |
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320 && file_ops::is_dir_sep (s[2]))) |
| 4087 | 321 return true; |
| 322 #endif | |
| 323 | |
| 2926 | 324 return false; |
| 325 } | |
| 326 | |
| 6838 | 327 bool |
| 328 octave_env::do_rooted_relative_pathname (const std::string& s) const | |
| 329 { | |
| 330 size_t len = s.length (); | |
| 331 | |
| 332 if (len == 0) | |
| 333 return false; | |
| 334 | |
| 335 if (len == 1 && s[0] == '.') | |
| 336 return true; | |
| 337 | |
| 338 if (len > 1 && s[0] == '.' && file_ops::is_dir_sep (s[1])) | |
| 339 return true; | |
| 340 | |
| 341 if (len == 2 && s[0] == '.' && s[1] == '.') | |
| 342 return true; | |
| 343 | |
| 344 if (len > 2 && s[0] == '.' && s[1] == '.' && file_ops::is_dir_sep (s[2])) | |
| 345 return true; | |
| 346 | |
| 347 return false; | |
| 348 } | |
| 349 | |
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350 // Return the 'basename' of the pathname in STRING (the stuff after |
| 4097 | 351 // the last directory separator). If STRING is not a full pathname, |
| 352 // simply return it. | |
| 2926 | 353 |
| 3504 | 354 std::string |
| 355 octave_env::do_base_pathname (const std::string& s) const | |
| 2926 | 356 { |
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357 if (! (do_absolute_pathname (s) || do_rooted_relative_pathname (s))) |
| 2926 | 358 return s; |
| 359 | |
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360 size_t pos = s.find_last_of (file_ops::dir_sep_chars ()); |
| 2926 | 361 |
| 8021 | 362 if (pos == std::string::npos) |
| 2926 | 363 return s; |
| 364 else | |
| 365 return s.substr (pos+1); | |
| 366 } | |
| 367 | |
| 368 // Turn STRING (a pathname) into an absolute pathname, assuming that | |
| 4097 | 369 // DOT_PATH contains the symbolic location of the current directory. |
| 2926 | 370 |
| 3504 | 371 std::string |
| 372 octave_env::do_make_absolute (const std::string& s, | |
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373 const std::string& dot_path) const |
| 2926 | 374 { |
| 4087 | 375 if (dot_path.empty () || s.empty () || do_absolute_pathname (s)) |
| 2926 | 376 return s; |
| 377 | |
| 4097 | 378 std::string current_dir = dot_path; |
| 2926 | 379 |
| 4097 | 380 if (current_dir.empty ()) |
| 381 current_dir = do_getcwd (); | |
| 2926 | 382 |
| 4097 | 383 size_t pos = current_dir.length () - 1; |
| 2926 | 384 |
| 4097 | 385 if (! file_ops::is_dir_sep (current_dir[pos])) |
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386 current_dir.append (file_ops::dir_sep_str ()); |
| 4097 | 387 |
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388 // FIXME: this is probably not correct for all systems. |
| 2926 | 389 |
| 390 size_t i = 0; | |
| 391 size_t slen = s.length (); | |
| 392 | |
| 393 while (i < slen) | |
| 394 { | |
| 395 if (s[i] == '.') | |
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396 { |
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397 if (i + 1 == slen) |
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398 return current_dir; |
| 2926 | 399 |
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400 if (file_ops::is_dir_sep (s[i+1])) |
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401 { |
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402 i += 2; |
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403 continue; |
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404 } |
| 2926 | 405 |
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406 if (s[i+1] == '.' |
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407 && (i + 2 == slen || file_ops::is_dir_sep (s[i+2]))) |
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408 { |
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409 i += 2; |
| 2926 | 410 |
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411 if (i != slen) |
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412 i++; |
| 2926 | 413 |
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414 pathname_backup (current_dir, 1); |
| 2926 | 415 |
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416 continue; |
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417 } |
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418 } |
| 2926 | 419 |
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420 size_t tmp = s.find_first_of (file_ops::dir_sep_chars (), i); |
| 2926 | 421 |
| 8021 | 422 if (tmp == std::string::npos) |
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423 { |
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424 current_dir.append (s, i, tmp-i); |
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425 break; |
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426 } |
| 2926 | 427 else |
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428 { |
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429 current_dir.append (s, i, tmp-i+1); |
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430 i = tmp + 1; |
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431 } |
| 2926 | 432 } |
| 433 | |
| 4097 | 434 return current_dir; |
| 2926 | 435 } |
| 436 | |
| 4097 | 437 // Return a string which is the current working directory. |
| 2926 | 438 |
| 3504 | 439 std::string |
| 4097 | 440 octave_env::do_getcwd () const |
| 2926 | 441 { |
| 442 if (! follow_symbolic_links) | |
| 443 current_directory = ""; | |
| 444 | |
| 445 if (verbatim_pwd || current_directory.empty ()) | |
| 446 current_directory = ::octave_getcwd (); | |
| 447 | |
| 448 return current_directory; | |
| 449 } | |
| 450 | |
| 451 // This value is not cached because it can change while Octave is | |
| 452 // running. | |
| 453 | |
| 3504 | 454 std::string |
| 2926 | 455 octave_env::do_get_home_directory (void) const |
| 456 { | |
| 3504 | 457 std::string hd = do_getenv ("HOME"); |
| 2926 | 458 |
| 6096 | 459 #if defined (__MINGW32__) || defined (_MSC_VER) |
| 460 // Maybe we are started directly from cmd.exe. | |
| 5451 | 461 if (hd.empty ()) |
| 5454 | 462 { |
| 463 std::string drv = do_getenv ("HOMEDRIVE"); | |
| 464 if (drv.empty ()) | |
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465 hd = do_getenv ("HOMEPATH"); |
| 5454 | 466 else |
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467 hd = drv + do_getenv ("HOMEPATH"); |
| 5454 | 468 } |
| 5451 | 469 #endif |
| 470 | |
| 2947 | 471 if (hd.empty ()) |
| 472 { | |
| 473 octave_passwd pw = octave_passwd::getpwuid (octave_syscalls::getuid ()); | |
| 474 | |
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475 hd = pw ? pw.dir () : std::string (file_ops::dir_sep_str ()); |
| 2947 | 476 } |
| 477 | |
| 478 return hd; | |
| 2926 | 479 } |
| 480 | |
| 3504 | 481 std::string |
| 2926 | 482 octave_env::do_get_user_name (void) const |
| 483 { | |
| 484 if (user_name.empty ()) | |
| 485 { | |
| 2947 | 486 octave_passwd pw = octave_passwd::getpwuid (octave_syscalls::getuid ()); |
| 2926 | 487 |
| 3504 | 488 user_name = pw ? pw.name () : std::string ("unknown"); |
| 2926 | 489 } |
| 490 | |
| 491 return user_name; | |
| 492 } | |
| 493 | |
| 3504 | 494 std::string |
| 2926 | 495 octave_env::do_get_host_name (void) const |
| 496 { | |
| 497 if (host_name.empty ()) | |
| 498 { | |
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499 char hostname[1024]; |
| 2926 | 500 |
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501 int status = gnulib::gethostname (hostname, 1023); |
| 2926 | 502 |
| 3185 | 503 host_name = (status < 0) ? "unknown" : hostname; |
| 2926 | 504 } |
| 505 | |
| 506 return host_name; | |
| 507 } | |
| 508 | |
| 3504 | 509 std::string |
| 510 octave_env::do_getenv (const std::string& name) const | |
| 2926 | 511 { |
| 512 char *value = ::getenv (name.c_str ()); | |
| 513 | |
| 514 return value ? value : ""; | |
| 515 } | |
| 516 | |
| 517 // Do the work of changing to the directory NEWDIR. Handle symbolic | |
| 518 // link following, etc. | |
| 519 | |
| 520 bool | |
| 3504 | 521 octave_env::do_chdir (const std::string& newdir) |
| 2926 | 522 { |
| 523 bool retval = false; | |
| 524 | |
| 3504 | 525 std::string tmp; |
| 2926 | 526 |
| 527 if (follow_symbolic_links) | |
| 528 { | |
| 529 if (current_directory.empty ()) | |
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530 do_getcwd (); |
| 2926 | 531 |
| 532 if (current_directory.empty ()) | |
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533 tmp = newdir; |
| 2926 | 534 else |
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535 tmp = do_make_absolute (newdir, current_directory); |
| 2926 | 536 |
| 4097 | 537 // Get rid of trailing directory separator. |
| 2926 | 538 |
| 539 size_t len = tmp.length (); | |
| 540 | |
| 541 if (len > 1) | |
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542 { |
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543 if (file_ops::is_dir_sep (tmp[--len])) |
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544 tmp.resize (len); |
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parents:
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545 } |
| 2926 | 546 |
| 547 if (! ::octave_chdir (tmp)) | |
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parents:
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548 { |
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John W. Eaton <jwe@octave.org>
parents:
10278
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549 current_directory = tmp; |
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07ebe522dac2
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John W. Eaton <jwe@octave.org>
parents:
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550 retval = true; |
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07ebe522dac2
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parents:
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551 } |
| 2926 | 552 } |
| 553 else | |
| 554 retval = (! ::octave_chdir (newdir)); | |
| 555 | |
| 556 return retval; | |
| 557 } | |
| 558 | |
| 559 // Remove the last N directories from PATH. | |
| 560 | |
| 561 void | |
| 3504 | 562 octave_env::pathname_backup (std::string& path, int n) const |
| 2926 | 563 { |
| 564 if (path.empty ()) | |
| 565 return; | |
| 566 | |
| 567 size_t i = path.length () - 1; | |
| 568 | |
| 569 while (n--) | |
| 570 { | |
| 4097 | 571 while (file_ops::is_dir_sep (path[i]) && i > 0) |
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parents:
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572 i--; |
| 2926 | 573 |
| 4097 | 574 while (! file_ops::is_dir_sep (path[i]) && i > 0) |
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John W. Eaton <jwe@octave.org>
parents:
10278
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changeset
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575 i--; |
| 2926 | 576 |
| 577 i++; | |
| 578 } | |
| 579 | |
| 580 path.resize (i); | |
| 581 } | |
| 582 | |
| 583 void | |
| 584 octave_env::error (int err_num) const | |
| 585 { | |
| 10411 | 586 (*current_liboctave_error_handler) ("%s", gnulib::strerror (err_num)); |
| 2926 | 587 } |
| 588 | |
| 589 void | |
| 3504 | 590 octave_env::error (const std::string& s) const |
| 2926 | 591 { |
| 592 (*current_liboctave_error_handler) ("%s", s.c_str ()); | |
| 593 } |