Mercurial > octave
annotate liboctave/system/lo-sysdep.cc @ 29654:d13d090cb03a stable
use std::size_t and std::ptrdiff_t in C++ code (bug #60471)
Files affected: make_int.cc, file-editor-tab.cc, octave-qscintilla.cc,
Cell.cc, Cell.h, call-stack.cc, call-stack.h, cellfun.cc, data.cc,
debug.cc, dlmread.cc, error.cc, event-queue.h, fcn-info.cc,
fcn-info.h, file-io.cc, ft-text-renderer.cc, gl2ps-print.cc,
graphics.cc, graphics.in.h, help.cc, hex2num.cc, input.cc,
latex-text-renderer.cc, load-path.cc, load-save.cc, load-save.h,
ls-hdf5.cc, ls-mat-ascii.cc, ls-mat5.cc, ls-oct-text.cc, mex.cc,
mexproto.h, mxarray.h, oct-map.cc, oct-stream.cc, oct-stream.h,
pager.cc, pager.h, pr-output.cc, regexp.cc, settings.h,
stack-frame.cc, stack-frame.h, strfns.cc, syminfo.cc, symrec.h,
symscope.cc, symscope.h, symtab.cc, sysdep.cc, toplev.cc, utils.cc,
utils.h, variables.cc, __fltk_uigetfile__.cc, __init_fltk__.cc,
audioread.cc, gzip.cc, cdef-class.cc, cdef-manager.cc, cdef-method.cc,
cdef-object.cc, cdef-object.h, ov-base-diag.cc, ov-base-diag.h,
ov-base-mat.cc, ov-base-mat.h, ov-base-scalar.cc, ov-base-scalar.h,
ov-base-sparse.h, ov-base.cc, ov-base.h, ov-cell.cc, ov-cell.h,
ov-ch-mat.cc, ov-class.cc, ov-class.h, ov-classdef.cc,
ov-fcn-handle.cc, ov-java.cc, ov-lazy-idx.h, ov-perm.cc, ov-perm.h,
ov-range.h, ov-str-mat.cc, ov-struct.cc, ov-struct.h, ov-usr-fcn.cc,
ov-usr-fcn.h, ov.cc, ov.h, ovl.cc, octave.cc, bp-table.cc, jit-ir.cc,
jit-ir.h, jit-typeinfo.cc, jit-typeinfo.h, jit-util.h, lex.h, lex.ll,
oct-lvalue.cc, oct-parse.yy, parse.h, profiler.h, pt-eval.cc,
pt-eval.h, pt-jit.cc, pt-jit.h, pt-pr-code.cc, pt-tm-const.cc,
pt-tm-const.h, Array.h, CMatrix.cc, DiagArray2.h, PermMatrix.h,
Sparse.h, dMatrix.cc, fCMatrix.cc, fMatrix.cc, bsxfun-defs.cc,
oct-fftw.cc, oct-fftw.h, randpoisson.cc, sparse-chol.cc,
mx-inlines.cc, file-ops.cc, lo-sysdep.cc, oct-env.cc, oct-time.cc,
action-container.cc, action-container.h, base-list.h, caseless-str.h,
cmd-edit.cc, cmd-hist.cc, data-conv.cc, data-conv.h, f77-fcn.h,
file-info.cc, file-info.h, kpse.cc, kpse.h, lo-cutils.h, lo-hash.h,
lo-regexp.cc, oct-base64.cc, oct-base64.h, oct-binmap.h, oct-glob.cc,
oct-shlib.cc, oct-shlib.h, oct-sort.cc, oct-sparse.h, oct-string.cc,
quit.cc, unwind-prot.h, url-transfer.cc, main.in.cc, mkoctfile.in.cc,
and shared-fcns.h.
(grafted from aef11bb4e6d1f303ad9de5688fcb7244ef48867e)
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 28 Apr 2021 22:57:42 -0400 |
parents | 0a5b15007766 |
children | 32f4357ac8d9 7f5bd197fea6 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1996-2021 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
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26 #if defined (HAVE_CONFIG_H) |
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27 # include "config.h" |
2926 | 28 #endif |
29 | |
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30 #include "dir-ops.h" |
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3069 | 32 #include "lo-error.h" |
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33 #include "lo-sysdep.h" |
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34 #include "putenv-wrapper.h" |
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35 #include "uniconv-wrappers.h" |
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36 #include "unistd-wrappers.h" |
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37 #include "unsetenv-wrapper.h" |
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39 #if defined (OCTAVE_USE_WINDOWS_API) |
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40 # include <windows.h> |
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41 # include <wchar.h> |
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42 |
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43 # include "lo-hash.h" |
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44 # include "filepos-wrappers.h" |
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45 # include "unwind-prot.h" |
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46 #endif |
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47 |
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48 namespace octave |
2926 | 49 { |
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50 namespace sys |
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51 { |
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52 std::string |
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53 getcwd (void) |
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54 { |
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55 std::string retval; |
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57 #if defined (OCTAVE_USE_WINDOWS_API) |
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58 wchar_t *tmp = _wgetcwd (nullptr, 0); |
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59 |
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60 if (! tmp) |
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61 (*current_liboctave_error_handler) ("unable to find current directory"); |
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62 |
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63 std::wstring tmp_wstr (tmp); |
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64 free (tmp); |
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65 |
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66 std::string tmp_str = u8_from_wstring (tmp_wstr); |
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67 |
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68 retval = tmp_str; |
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69 |
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70 #else |
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71 // Using octave_getcwd_wrapper ensures that we have a getcwd that |
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72 // will allocate a buffer as large as necessary if buf and size are |
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73 // both 0. |
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75 char *tmp = octave_getcwd_wrapper (nullptr, 0); |
2926 | 76 |
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77 if (! tmp) |
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78 (*current_liboctave_error_handler) ("unable to find current directory"); |
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79 |
10250 | 80 retval = tmp; |
81 free (tmp); | |
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82 #endif |
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83 |
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84 return retval; |
10250 | 85 } |
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87 int |
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88 chdir (const std::string& path_arg) |
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89 { |
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90 std::string path = sys::file_ops::tilde_expand (path_arg); |
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92 #if defined (OCTAVE_USE_WINDOWS_API) |
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93 if (path.length () == 2 && path[1] == ':') |
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94 path += '\\'; |
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96 | |
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97 return octave_chdir_wrapper (path.c_str ()); |
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98 } |
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99 |
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100 bool |
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101 get_dirlist (const std::string& dirname, string_vector& dirlist, |
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102 std::string& msg) |
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103 { |
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104 dirlist = ""; |
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105 msg = ""; |
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106 #if defined (OCTAVE_USE_WINDOWS_API) |
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107 _WIN32_FIND_DATAW ffd; |
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108 |
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109 std::string path_name (dirname); |
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110 if (path_name.empty ()) |
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111 return true; |
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112 |
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113 if (path_name.back () == '\\' || path_name.back () == '/') |
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114 path_name.push_back ('*'); |
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115 else |
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116 path_name.append (R"(\*)"); |
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117 |
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118 // Find first file in directory. |
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119 std::wstring wpath_name = u8_to_wstring (path_name); |
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120 HANDLE hFind = FindFirstFileW (wpath_name.c_str (), &ffd); |
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121 if (INVALID_HANDLE_VALUE == hFind) |
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122 { |
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123 DWORD errCode = GetLastError (); |
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124 char *errorText = nullptr; |
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125 FormatMessageA (FORMAT_MESSAGE_FROM_SYSTEM | |
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126 FORMAT_MESSAGE_ALLOCATE_BUFFER | |
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127 FORMAT_MESSAGE_IGNORE_INSERTS, |
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128 nullptr, errCode, |
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129 MAKELANGID (LANG_NEUTRAL, SUBLANG_DEFAULT), |
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130 reinterpret_cast <char *> (&errorText), 0, nullptr); |
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131 if (errorText != nullptr) |
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132 { |
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133 msg = std::string (errorText); |
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134 LocalFree (errorText); |
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135 } |
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136 return false; |
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137 } |
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138 |
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139 std::list<std::string> dirlist_str; |
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140 do |
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141 dirlist_str.push_back (u8_from_wstring (ffd.cFileName)); |
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142 while (FindNextFileW (hFind, &ffd) != 0); |
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143 |
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144 FindClose(hFind); |
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145 |
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146 dirlist = string_vector (dirlist_str); |
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147 |
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148 #else |
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149 |
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150 dir_entry dir (dirname); |
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151 |
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152 if (! dir) |
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153 { |
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154 msg = dir.error (); |
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155 return false; |
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156 } |
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157 |
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158 dirlist = dir.read (); |
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159 |
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160 dir.close (); |
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161 #endif |
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162 |
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163 return true; |
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164 } |
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165 |
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166 #if defined (OCTAVE_USE_WINDOWS_API) |
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167 |
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168 static bool check_fseek_ftell_workaround_needed (bool set_nonbuffered_mode) |
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169 { |
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170 // To check whether the workaround is needed: |
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171 // |
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172 // * Create a tmp file with LF line endings only. |
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173 // |
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174 // * Open that file for reading in text mode. |
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175 // |
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176 // * Read a line. |
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177 // |
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178 // * Use ftello to record the position of the beginning of the |
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179 // second line. |
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180 // |
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181 // * Read and save the contents of the second line. |
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182 // |
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183 // * Use fseeko to return to the saved position. |
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184 // |
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185 // * Read the second line again and compare to the previously |
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186 // saved text. |
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187 // |
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188 // * If the lines are different, we need to set non-buffered |
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189 // input mode for files opened in text mode. |
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190 |
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191 std::string tmpname = sys::tempnam ("", "oct-"); |
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192 |
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193 if (tmpname.empty ()) |
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194 { |
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195 (*current_liboctave_warning_handler) |
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196 ("fseek/ftell bug check failed (tmp name creation)!"); |
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197 return false; |
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198 } |
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199 |
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200 std::FILE *fptr = std::fopen (tmpname.c_str (), "wb"); |
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201 |
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202 if (! fptr) |
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203 { |
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204 (*current_liboctave_warning_handler) |
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205 ("fseek/ftell bug check failed (opening tmp file for writing)!"); |
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206 return false; |
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207 } |
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208 |
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209 fprintf (fptr, "%s", "foo\nbar\nbaz\n"); |
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210 |
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211 std::fclose (fptr); |
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212 |
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213 fptr = std::fopen (tmpname.c_str (), "rt"); |
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214 |
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215 if (! fptr) |
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216 { |
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217 (*current_liboctave_warning_handler) |
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218 ("fseek/ftell bug check failed (opening tmp file for reading)!"); |
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219 return false; |
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220 } |
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221 |
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222 unwind_action act ([fptr, tmpname] () { |
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223 std::fclose (fptr); |
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224 sys::unlink (tmpname); |
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225 }); |
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226 |
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227 if (set_nonbuffered_mode) |
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228 ::setvbuf (fptr, nullptr, _IONBF, 0); |
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229 |
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230 while (true) |
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231 { |
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232 int c = fgetc (fptr); |
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233 |
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234 if (c == EOF) |
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235 { |
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236 (*current_liboctave_warning_handler) |
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237 ("fseek/ftell bug check failed (skipping first line)!"); |
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238 return false; |
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239 } |
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240 |
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241 if (c == '\n') |
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242 break; |
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243 } |
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244 |
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245 off_t pos = octave_ftello_wrapper (fptr); |
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246 |
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247 char buf1[8]; |
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248 int i = 0; |
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249 while (true) |
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250 { |
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251 int c = fgetc (fptr); |
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252 |
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253 if (c == EOF) |
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254 { |
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255 (*current_liboctave_warning_handler) |
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256 ("fseek/ftell bug check failed (reading second line)!"); |
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257 return false; |
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258 } |
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259 |
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260 if (c == '\n') |
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261 break; |
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262 |
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263 buf1[i++] = static_cast<char> (c); |
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264 } |
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265 buf1[i] = '\0'; |
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266 |
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267 octave_fseeko_wrapper (fptr, pos, SEEK_SET); |
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268 |
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269 char buf2[8]; |
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270 i = 0; |
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271 while (true) |
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272 { |
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273 int c = fgetc (fptr); |
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274 |
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275 if (c == EOF) |
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276 { |
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277 (*current_liboctave_warning_handler) |
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278 ("fseek/ftell bug check failed (reading after repositioning)!"); |
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279 return false; |
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280 } |
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281 |
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282 if (c == '\n') |
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283 break; |
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284 |
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285 buf2[i++] = static_cast<char> (c); |
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286 } |
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287 buf2[i] = '\0'; |
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288 |
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289 return strcmp (buf1, buf2); |
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290 } |
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291 |
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292 #endif |
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293 |
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294 std::FILE * |
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295 fopen (const std::string& filename, const std::string& mode) |
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296 { |
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297 #if defined (OCTAVE_USE_WINDOWS_API) |
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298 |
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299 std::wstring wfilename = u8_to_wstring (filename); |
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300 std::wstring wmode = u8_to_wstring (mode); |
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301 |
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302 std::FILE *fptr = _wfopen (wfilename.c_str (), wmode.c_str ()); |
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303 |
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304 static bool fseek_ftell_bug_workaround_needed = false; |
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305 static bool fseek_ftell_bug_checked = false; |
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306 |
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307 if (! fseek_ftell_bug_checked && mode.find ('t') != std::string::npos) |
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308 { |
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309 // FIXME: Is the following workaround needed for all files |
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310 // opened in text mode, or only for files opened for reading? |
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311 |
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312 // Try to avoid fseek/ftell bug on Windows systems by setting |
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313 // non-buffered input mode for files opened in text mode, but |
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314 // only if it appears that the workaround is needed. See |
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315 // Octave bug #58055. |
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316 |
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317 // To check whether the workaround is needed: |
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318 // |
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319 // * Create a tmp file with LF line endings only. |
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320 // |
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321 // * Open that file for reading in text mode. |
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322 // |
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323 // * Read a line. |
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324 // |
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325 // * Use ftello to record the position of the beginning of |
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326 // the second line. |
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327 // |
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328 // * Read and save the contents of the second line. |
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329 // |
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330 // * Use fseeko to return to the saved position. |
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331 // |
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332 // * Read the second line again and compare to the |
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333 // previously saved text. |
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334 // |
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335 // * If the lines are different, we need to set non-buffered |
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336 // input mode for files opened in text mode. |
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337 // |
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338 // * To verify that the workaround solves the problem, |
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339 // repeat the above test with non-buffered input mode. If |
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340 // that fails, warn that there may be trouble with |
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341 // ftell/fseek when reading files opened in text mode. |
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342 |
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343 if (check_fseek_ftell_workaround_needed (false)) |
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344 { |
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345 if (check_fseek_ftell_workaround_needed (true)) |
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346 (*current_liboctave_warning_handler) |
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347 ("fseek/ftell may fail for files opened in text mode"); |
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348 else |
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349 fseek_ftell_bug_workaround_needed = true; |
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350 } |
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351 |
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352 fseek_ftell_bug_checked = true; |
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353 } |
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354 |
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355 if (fseek_ftell_bug_workaround_needed |
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356 && mode.find ('t') != std::string::npos) |
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357 ::setvbuf (fptr, nullptr, _IONBF, 0); |
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358 |
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359 return fptr; |
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360 |
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361 #else |
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362 return std::fopen (filename.c_str (), mode.c_str ()); |
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363 #endif |
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364 } |
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365 |
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366 std::fstream |
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367 fstream (const std::string& filename, const std::ios::openmode mode) |
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368 { |
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369 #if defined (OCTAVE_USE_WINDOWS_API) |
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370 |
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371 std::wstring wfilename = u8_to_wstring (filename); |
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372 |
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373 return std::fstream (wfilename.c_str (), mode); |
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374 |
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375 #else |
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376 return std::fstream (filename.c_str (), mode); |
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377 #endif |
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378 } |
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379 |
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380 std::ifstream |
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381 ifstream (const std::string& filename, const std::ios::openmode mode) |
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382 { |
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383 #if defined (OCTAVE_USE_WINDOWS_API) |
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384 |
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385 std::wstring wfilename = u8_to_wstring (filename); |
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386 |
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387 return std::ifstream (wfilename.c_str (), mode); |
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388 |
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389 #else |
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390 return std::ifstream (filename.c_str (), mode); |
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391 #endif |
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392 } |
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393 |
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394 std::ofstream |
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395 ofstream (const std::string& filename, const std::ios::openmode mode) |
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396 { |
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397 #if defined (OCTAVE_USE_WINDOWS_API) |
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398 |
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399 std::wstring wfilename = u8_to_wstring (filename); |
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400 |
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401 return std::ofstream (wfilename.c_str (), mode); |
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402 |
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403 #else |
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404 return std::ofstream (filename.c_str (), mode); |
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405 #endif |
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406 } |
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407 |
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408 void |
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409 putenv_wrapper (const std::string& name, const std::string& value) |
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410 { |
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411 // This function was adapted from xputenv from Karl Berry's kpathsearch |
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412 // library. |
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413 // FIXME: make this do the right thing if we don't have a SMART_PUTENV. |
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414 |
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415 int new_len = name.length () + value.length () + 2; |
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416 |
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417 // FIXME: This leaks memory, but so would a call to setenv. |
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418 // Short of extreme measures to track memory, altering the environment |
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419 // always leaks memory, but the saving grace is that the leaks are small. |
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420 |
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421 char *new_item = static_cast<char *> (std::malloc (new_len)); |
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422 |
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423 if (new_item) |
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424 sprintf (new_item, "%s=%s", name.c_str (), value.c_str ()); |
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425 |
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426 // As far as I can see there's no way to distinguish between the |
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427 // various errors; putenv doesn't have errno values. |
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428 |
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429 #if defined (OCTAVE_USE_WINDOWS_API) |
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430 wchar_t *wnew_item = u8_to_wchar (new_item); |
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431 unwind_protect frame; |
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432 frame.add_fcn (std::free, static_cast<void *> (new_item)); |
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433 if (_wputenv (wnew_item) < 0) |
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434 (*current_liboctave_error_handler) ("putenv (%s) failed", new_item); |
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435 #else |
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436 if (octave_putenv_wrapper (new_item) < 0) |
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437 (*current_liboctave_error_handler) ("putenv (%s) failed", new_item); |
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438 #endif |
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439 } |
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440 |
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441 std::string |
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442 getenv_wrapper (const std::string& name) |
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443 { |
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444 #if defined (OCTAVE_USE_WINDOWS_API) |
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445 std::wstring wname = u8_to_wstring (name); |
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446 wchar_t *env = _wgetenv (wname.c_str ()); |
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447 return env ? u8_from_wstring (env) : ""; |
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448 #else |
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449 char *env = ::getenv (name.c_str ()); |
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450 return env ? env : ""; |
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451 #endif |
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452 } |
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453 |
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454 int |
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455 unsetenv_wrapper (const std::string& name) |
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456 { |
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457 #if defined (OCTAVE_USE_WINDOWS_API) |
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458 putenv_wrapper (name, ""); |
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459 |
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460 std::wstring wname = u8_to_wstring (name); |
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461 return (SetEnvironmentVariableW (wname.c_str (), nullptr) ? 0 : -1); |
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462 #else |
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463 return octave_unsetenv_wrapper (name.c_str ()); |
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464 #endif |
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465 } |
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466 |
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467 std::wstring |
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468 u8_to_wstring (const std::string& utf8_string) |
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469 { |
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470 size_t srclen = utf8_string.length (); |
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471 const uint8_t *src = reinterpret_cast<const uint8_t *> |
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472 (utf8_string.c_str ()); |
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473 |
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474 size_t length = 0; |
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475 wchar_t *wchar = reinterpret_cast<wchar_t *> |
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476 (octave_u8_conv_to_encoding ("wchar_t", src, srclen, |
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477 &length)); |
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478 |
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479 std::wstring retval = L""; |
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480 if (wchar != nullptr) |
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481 { |
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482 retval = std::wstring (wchar, length / sizeof (wchar_t)); |
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483 free (static_cast<void *> (wchar)); |
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484 } |
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485 |
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486 return retval; |
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487 } |
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488 |
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489 std::string |
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490 u8_from_wstring (const std::wstring& wchar_string) |
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491 { |
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492 size_t srclen = wchar_string.length () * sizeof (wchar_t); |
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493 const char *src = reinterpret_cast<const char *> (wchar_string.c_str ()); |
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494 |
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495 size_t length = 0; |
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496 char *mbchar = reinterpret_cast<char *> |
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497 (octave_u8_conv_from_encoding ("wchar_t", src, srclen, |
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498 &length)); |
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499 |
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500 std::string retval = ""; |
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501 if (mbchar != nullptr) |
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502 { |
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503 retval = std::string (mbchar, length); |
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504 free (static_cast<void *> (mbchar)); |
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505 } |
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506 |
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Add C++ functions to convert between UTF-8 string and wstring (bug #49118).
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507 return retval; |
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508 } |
25517
7fbc39a46be8
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509 |
25615
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510 // At quite a few places in the code we are passing file names as |
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511 // char arrays to external library functions. |
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512 |
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513 // When these functions try to locate the corresponding file on the |
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514 // disc, they need to use the wide character API on Windows to |
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515 // correctly open files with non-ASCII characters. |
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516 |
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517 // But they have no way of knowing which encoding we are using for |
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518 // the passed string. So they have no way of reliably converting to |
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519 // a wchar_t array. (I.e. there is no possible fix for these |
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520 // functions with current C or C++.) |
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521 |
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522 // To solve the dilemma, the function "get_ASCII_filename" first |
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523 // checks whether there are any non-ASCII characters in the passed |
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524 // file name. If there are not, it returns the original name. |
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525 |
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526 // Otherwise, it tries to obtain the short file name (8.3 naming |
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527 // scheme) which only consists of ASCII characters and are safe to |
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528 // pass. However, short file names can be disabled for performance |
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529 // reasons on the file system level with NTFS. So there is no |
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530 // guarantee that these exist. |
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531 |
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532 // If short file names are not stored, a hard link to the file is |
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|
533 // created. For this the path to the file is split at the deepest |
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|
534 // possible level that doesn't contain non-ASCII characters. At |
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535 // that level a hidden folder is created that holds the hard links. |
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|
536 // That means we need to have write access on that location. A path |
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537 // to that hard link is returned. |
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538 |
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|
539 // If the file system is FAT32, there are no hard links. But FAT32 |
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|
540 // always stores short file names. So we are safe. |
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|
541 |
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542 // ExFAT that is occasionally used on USB sticks and SD cards stores |
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|
543 // neither short file names nor does it support hard links. So for |
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|
544 // exFAT with this function, there is (currently) no way to generate |
ffc858064239
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|
545 // a file name that is stripped from non-ASCII characters but still |
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546 // is valid. |
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547 |
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548 // For Unixy systems, this function does nothing. |
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549 |
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550 std::string |
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551 get_ASCII_filename (const std::string& orig_file_name) |
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552 { |
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553 #if defined (OCTAVE_USE_WINDOWS_API) |
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554 |
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555 // Return file name that only contains ASCII characters that can |
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556 // be used to access the file orig_file_name. The original file |
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557 // must exist in the file system before calling this function. |
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558 // This is useful for passing file names to functions that are not |
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559 // aware of the character encoding we are using. |
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560 |
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561 // 1. Check whether filename contains non-ASCII (UTF-8) characters. |
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562 |
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563 std::string::const_iterator first_non_ASCII |
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564 = std::find_if (orig_file_name.begin (), orig_file_name.end (), |
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565 [](char c) { return (c < 0 || c >= 128); }); |
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566 |
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567 if (first_non_ASCII == orig_file_name.end ()) |
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568 return orig_file_name; |
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569 |
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570 // 2. Check if file system stores short filenames (always |
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571 // ASCII-only). |
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572 |
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573 std::wstring w_orig_file_name_str = u8_to_wstring (orig_file_name); |
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574 const wchar_t *w_orig_file_name = w_orig_file_name_str.c_str (); |
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575 |
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576 // Get full path to file |
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577 wchar_t w_full_file_name[_MAX_PATH]; |
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578 if (_wfullpath (w_full_file_name, w_orig_file_name, _MAX_PATH) == nullptr) |
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579 return orig_file_name; |
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580 |
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581 std::wstring w_full_file_name_str = w_full_file_name; |
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582 |
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583 // Get short filename (8.3) from UTF-16 filename. |
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584 |
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585 long length = GetShortPathNameW (w_full_file_name, nullptr, 0); |
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586 |
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587 if (length > 0) |
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588 { |
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589 // Dynamically allocate the correct size (terminating null char |
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590 // was included in length). |
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591 |
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592 wchar_t *w_short_file_name = new wchar_t[length]; |
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593 GetShortPathNameW (w_full_file_name, w_short_file_name, length); |
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594 |
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595 std::wstring w_short_file_name_str |
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596 = std::wstring (w_short_file_name, length); |
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597 std::string short_file_name = u8_from_wstring (w_short_file_name_str); |
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598 |
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599 if (w_short_file_name_str.compare (0, length-1, w_full_file_name_str) != 0) |
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600 return short_file_name; |
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601 } |
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602 |
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603 // 3. Create hard link with only-ASCII characters. |
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604 // Get longest possible part of path that only contains ASCII chars. |
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605 |
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606 std::wstring::iterator w_first_non_ASCII |
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607 = std::find_if (w_full_file_name_str.begin (), w_full_file_name_str.end (), |
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608 [](wchar_t c) { return (c < 0 || c >= 128); }); |
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609 std::wstring tmp_substr |
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610 = std::wstring (w_full_file_name_str.begin (), w_first_non_ASCII); |
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611 |
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612 std::size_t pos |
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613 = tmp_substr.find_last_of (u8_to_wstring (file_ops::dir_sep_chars ())); |
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614 |
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615 std::string par_dir |
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616 = u8_from_wstring (w_full_file_name_str.substr (0, pos+1)); |
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617 |
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618 // Create .oct_ascii directory. |
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619 // FIXME: We need to have write permission in this location. |
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620 |
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621 std::string oct_ascii_dir = par_dir + ".oct_ascii"; |
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622 std::string test_dir = canonicalize_file_name (oct_ascii_dir); |
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623 |
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624 if (test_dir.empty ()) |
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625 { |
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626 std::string msg; |
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627 int status = sys::mkdir (oct_ascii_dir, 0777, msg); |
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628 |
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629 if (status < 0) |
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630 return orig_file_name; |
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631 |
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632 // Set hidden property. |
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633 SetFileAttributesA (oct_ascii_dir.c_str (), FILE_ATTRIBUTE_HIDDEN); |
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634 } |
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635 |
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636 // Create file from hash of full filename. |
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637 std::string filename_hash |
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638 = (oct_ascii_dir + file_ops::dir_sep_str () |
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639 + crypto::hash ("SHA1", orig_file_name)); |
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640 |
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641 std::string abs_filename_hash = canonicalize_file_name (filename_hash); |
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642 |
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643 if (! abs_filename_hash.empty ()) |
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644 sys::unlink (filename_hash); |
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645 |
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646 wchar_t w_filename_hash[filename_hash.length ()+1] = {0}; |
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647 |
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648 for (std::size_t i=0; i < filename_hash.length (); i++) |
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649 w_filename_hash[i] = filename_hash.at (i); |
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650 |
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|
651 if (CreateHardLinkW (w_filename_hash, w_orig_file_name, nullptr)) |
25532
7dad5fa7e88e
Add function for ASCII only file names (bug #49118).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25531
diff
changeset
|
652 return filename_hash; |
7dad5fa7e88e
Add function for ASCII only file names (bug #49118).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25531
diff
changeset
|
653 |
25615
ffc858064239
style fixes and commentary for get_ASCII_filename function (bug #54299)
John W. Eaton <jwe@octave.org>
parents:
25609
diff
changeset
|
654 #endif |
25532
7dad5fa7e88e
Add function for ASCII only file names (bug #49118).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25531
diff
changeset
|
655 |
7dad5fa7e88e
Add function for ASCII only file names (bug #49118).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25531
diff
changeset
|
656 return orig_file_name; |
7dad5fa7e88e
Add function for ASCII only file names (bug #49118).
Markus Mützel <markus.muetzel@gmx.de>
parents:
25531
diff
changeset
|
657 } |
21738
a99c2407f930
use namespace for lo-sysdep.h functions
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
658 } |
a99c2407f930
use namespace for lo-sysdep.h functions
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
659 } |