Mercurial > octave
view liboctave/util/oct-glob.cc @ 32078:632f9b828de1
Avoid using file_stat in liboctave/util (bug #59711).
* cmd-edit.cc (looks_like_filename), cmd-hist.cc (gnu_history::do_append),
kpse.cc (kpse_element_dir), oct-glob.cc (glob, windows_glob),
url-transfer.cc (base_url_transfer::mget_directory): Use functions "dir_exists"
or "file_exists" instead of "file_stat".
* kpse.cc (dir_p), oct-glob.cc (single_match_exists): Remove unused static
functions.
author | Markus Mützel <markus.muetzel@gmx.de> |
---|---|
date | Sat, 06 May 2023 10:56:33 +0200 |
parents | 597f3ee61a48 |
children | b0785d76430a |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 2010-2023 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <algorithm> #include <string> #include "glob-wrappers.h" #include "oct-glob.h" #include "file-ops.h" #include "file-stat.h" #include "unwind-prot.h" #if defined (OCTAVE_USE_WINDOWS_API) # include <windows.h> # include <shlwapi.h> # include <wchar.h> # include "lo-sysdep.h" #endif // These functions are defined here and not in glob_match.cc so that we // can include the glob.h file from gnulib, which defines glob to // be rpl_glob. If we include glob.h in glob_match.cc, then it // transforms the glob_match::glob function to be glob_match::rpl_glob, // which is not what we want... OCTAVE_BEGIN_NAMESPACE(octave) OCTAVE_BEGIN_NAMESPACE(sys) bool fnmatch (const string_vector& pat, const std::string& str, int fnm_flags) { int npat = pat.numel (); const char *cstr = str.c_str (); for (int i = 0; i < npat; i++) if (octave_fnmatch_wrapper (pat(i).c_str (), cstr, fnm_flags) != octave_fnm_nomatch_wrapper ()) return true; return false; } string_vector glob (const string_vector& pat) { string_vector retval; int npat = pat.numel (); int k = 0; void *glob_info = octave_create_glob_info_struct (); unwind_action cleanup_glob_info_struct ([=] () { octave_destroy_glob_info_struct (glob_info); }); for (int i = 0; i < npat; i++) { std::string xpat = pat(i); if (! xpat.empty ()) { #if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) \ && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM)) std::replace (xpat.begin (), xpat.end (), '\\', '/'); #endif int err = octave_glob_wrapper (xpat.c_str (), octave_glob_nosort_wrapper (), glob_info); if (! err) { int n = octave_glob_num_matches (glob_info); const char *const *matches = octave_glob_match_list (glob_info); // FIXME: we shouldn't have to check to see if // a single match exists, but it seems that glob() won't // check for us unless the pattern contains globbing // characters. Hmm. if (n > 1 || (n == 1 && sys::file_exists (std::string (matches[0])))) { retval.resize (k+n); for (int j = 0; j < n; j++) { std::string tmp = matches[j]; #if defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) \ && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM) std::replace (tmp.begin (), tmp.end (), '/', '\\'); #endif retval[k++] = tmp; } } octave_globfree_wrapper (glob_info); } } } return retval.sort (); } #if defined (OCTAVE_USE_WINDOWS_API) static void find_files (std::list<std::string>& dirlist, const std::string& dir, const std::string& pat, std::string& file) { // remove leading file separators bool is_file_empty = file.empty (); while (! file.empty () && sys::file_ops::is_dir_sep (file[0])) file = file.substr (1, std::string::npos); bool is_trailing_file_sep = ! is_file_empty && file.empty (); if (! pat.compare (".") || ! pat.compare ("..")) { // shortcut for trivial patterns that would expand to a folder name // get next component of path (or file name) std::size_t sep_pos = file.find_first_of (sys::file_ops::dir_sep_chars ()); std::string pat_str = file.substr (0, sep_pos); std::string file_str = (sep_pos != std::string::npos) ? file.substr (sep_pos) : ""; // Original pattern ends with "." or "..". Take it as we have it. if (pat_str.empty ()) { if (is_trailing_file_sep) pat_str = sys::file_ops::dir_sep_char (); dirlist.push_back (sys::file_ops::concat (dir, pat) + pat_str); return; } // call this function recursively with next path component in PAT find_files (dirlist, sys::file_ops::concat (dir, pat), pat_str, file_str); return; } // find first file in directory that matches pattern in PAT std::wstring wpat = u8_to_wstring (sys::file_ops::concat (dir, pat)); _WIN32_FIND_DATAW ffd; HANDLE h_find = FindFirstFileW (wpat.c_str (), &ffd); // ignore any error if (h_find == INVALID_HANDLE_VALUE) return; unwind_action close_h_find ([=] () { FindClose (h_find); }); // find all files that match pattern do { // must be directory if pattern continues if (! (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && (! file.empty () || is_trailing_file_sep)) continue; std::string found_dir = u8_from_wstring (ffd.cFileName); if (file.empty ()) { // Don't include "." and ".." in matches. if (found_dir.compare (".") && found_dir.compare ("..")) { if (is_trailing_file_sep) found_dir += sys::file_ops::dir_sep_char (); dirlist.push_back (sys::file_ops::concat (dir, found_dir)); } } else { // get next component of path (or file name) std::size_t sep_pos = file.find_first_of (sys::file_ops::dir_sep_chars ()); std::string pat_str = file.substr (0, sep_pos); std::string file_str = (sep_pos != std::string::npos) ? file.substr (sep_pos) : ""; // call this function recursively with next path component in PAT find_files (dirlist, sys::file_ops::concat (dir, found_dir), pat_str, file_str); } } while (FindNextFileW (h_find, &ffd) != 0); } #endif // Glob like Windows "dir". Treat only * and ? as wildcards, // and "*.*" matches filenames even if they do not contain ".". string_vector windows_glob (const string_vector& pat) { string_vector retval; int npat = pat.numel (); #if defined (OCTAVE_USE_WINDOWS_API) std::list<std::string> dirlist; for (int i = 0; i < npat; i++) { std::string xpat = pat(i); if (xpat.empty ()) continue; std::string dir = ""; // separate component until first file separator std::size_t sep_pos = xpat.find_first_of (sys::file_ops::dir_sep_chars ()); // handle UNC paths if (sep_pos == 0 && xpat.length () > 1 && sys::file_ops::is_dir_sep (xpat[1])) { // start pattern with a file, i.e., "\\SERVER\share\file" sep_pos = xpat.find_first_of (sys::file_ops::dir_sep_chars (), 2); if (sep_pos != std::string::npos) sep_pos = xpat.find_first_of (sys::file_ops::dir_sep_chars (), sep_pos + 1); if (sep_pos != std::string::npos) { dir = xpat.substr(0, sep_pos); xpat = xpat.substr (sep_pos+1); sep_pos = xpat.find_first_of (sys::file_ops::dir_sep_chars ()); } } std::string file = (sep_pos != std::string::npos) ? xpat.substr (sep_pos) : ""; xpat = xpat.substr (0, sep_pos); if ((sep_pos == 2 || xpat.length () == 2) && xpat[1] == ':') { // include disc root with first file or folder // remove leading file separators in path without disc root while (file.length () > 1 && sys::file_ops::is_dir_sep (file[0])) file = file.substr (1, std::string::npos); sep_pos = file.find_first_of (sys::file_ops::dir_sep_chars ()); dir = xpat; xpat = file.substr (0, sep_pos); file = (sep_pos != std::string::npos) ? file.substr (sep_pos) : ""; if (xpat.empty ()) { // don't glob if input is only disc root std::wstring wpat = u8_to_wstring (pat(i)); if (PathFileExistsW (wpat.c_str ())) { if (sys::file_ops::is_dir_sep (pat(i).back ())) dirlist.push_back (dir + sys::file_ops::dir_sep_char ()); else dirlist.push_back (dir); } continue; } } find_files (dirlist, dir, xpat, file); } retval = string_vector (dirlist); #else int k = 0; void *glob_info = octave_create_glob_info_struct (); unwind_action cleanup_glob_info_struct ([=] () { octave_destroy_glob_info_struct (glob_info); }); for (int i = 0; i < npat; i++) { std::string xpat = pat(i); if (! xpat.empty ()) { std::string escaped; escaped.reserve (xpat.length ()); for (std::size_t j = 0; j < xpat.length (); j++) { # if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) \ && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM)) if (xpat[j] == '\\') escaped += '/'; else # endif { if (xpat[j] == ']' || xpat[j] == '[') escaped += '\\'; escaped += xpat[j]; } } // Replace trailing "*.*" by "*". int len = escaped.length (); if (len >= 3 && escaped.substr (len - 3) == "*.*") escaped = escaped.substr (0, len - 2); int err = octave_glob_wrapper (escaped.c_str (), octave_glob_nosort_wrapper (), glob_info); if (! err) { int n = octave_glob_num_matches (glob_info); const char *const *matches = octave_glob_match_list (glob_info); // FIXME: we shouldn't have to check to see if // a single match exists, but it seems that glob() won't // check for us unless the pattern contains globbing // characters. Hmm. if (n > 1 || (n == 1 && sys::file_exists (std::string (matches[0])))) { retval.resize (k + n); for (int j = 0; j < n; j++) { std::string tmp = matches[j]; std::string unescaped; unescaped.reserve (tmp.length ()); for (std::size_t m = 0; m < tmp.length (); m++) { # if (defined (OCTAVE_HAVE_WINDOWS_FILESYSTEM) \ && ! defined (OCTAVE_HAVE_POSIX_FILESYSTEM)) if (tmp[m] == '/') unescaped += '\\'; else # endif { if (tmp[m] == '\\' && ++m == tmp.length ()) break; unescaped += tmp[m]; } } retval[k++] = unescaped; } } octave_globfree_wrapper (glob_info); } } } #endif return retval.sort (); } OCTAVE_END_NAMESPACE(sys) OCTAVE_END_NAMESPACE(octave)