2 Copyright (C) 2013 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 #include <glibmm/miscutils.h>
30 #include "pbd/pathexpand.h"
31 #include "pbd/strsplit.h"
41 /****************************************************************
42 * Emulate POSIX realpath() using Win32 _fullpath() since realpath()
46 * On Success: A pointer to the resolved (absolute) path
47 * On Failure: 0 (NULL)
51 realpath (const char *original_path, char resolved_path[_MAX_PATH+1])
54 bool bIsSymLink = false; // We'll probably need to test the incoming path
55 // to find out if it points to a Windows shortcut
56 // (or a hard link) and set this appropriately.
59 // At the moment I'm not sure if Windows '_fullpath()' is directly
60 // equivalent to POSIX 'realpath()' - in as much as the latter will
61 // resolve the supplied path if it happens to point to a symbolic
62 // link ('_fullpath()' probably DOESN'T do this but I'm not really
63 // sure if Ardour needs such functionality anyway). Therefore we'll
64 // possibly need to add that functionality here at a later date.
66 char temp[(_MAX_PATH+1)*6]; // Allow for maximum length of a path in wchar characters
68 // POSIX 'realpath()' requires that the buffer size is at
69 // least PATH_MAX+1, so assume that the user knew this !!
71 rpath = _fullpath (temp, Glib::locale_from_utf8 (original_path).c_str(), _MAX_PATH);
74 snprintf (resolved_path, _MAX_PATH+1, "%s", Glib::locale_to_utf8 (temp).c_str());
82 #endif // COMPILER_MINGW
85 PBD::canonical_path (const std::string& path)
89 if (!realpath (path.c_str(), buf)) {
97 PBD::path_expand (string path)
103 /* tilde expansion */
105 if (path[0] == '~') {
106 if (path.length() == 1) {
107 return Glib::get_home_dir();
110 if (path[1] == '/') {
111 path.replace (0, 1, Glib::get_home_dir());
113 /* can't handle ~roger, so just leave it */
117 /* now do $VAR substitution, since wordexp isn't reliable */
119 regex_t compiled_pattern;
120 const int nmatches = 100;
121 regmatch_t matches[nmatches];
123 if (regcomp (&compiled_pattern, "\\$([a-zA-Z_][a-zA-Z0-9_]*|\\{[a-zA-Z_][a-zA-Z0-9_]*\\})", REG_EXTENDED)) {
124 std::cerr << "bad regcomp\n";
130 if (regexec (&compiled_pattern, path.c_str(), nmatches, matches, 0)) {
134 /* matches[0] gives the entire match */
136 string match = path.substr (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so);
138 /* try to get match from the environment */
140 if (match[1] == '{') {
142 match = match.substr (2, match.length() - 3);
145 char* matched_value = getenv (match.c_str());
148 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, matched_value);
150 path.replace (matches[0].rm_so, matches[0].rm_eo - matches[0].rm_so, string());
153 /* go back and do it again with whatever remains after the
158 regfree (&compiled_pattern);
162 return canonical_path (path);
166 PBD::search_path_expand (string path)
175 split (path, s, ':');
177 for (vector<string>::iterator i = s.begin(); i != s.end(); ++i) {
178 string exp = path_expand (*i);
186 for (vector<string>::iterator i = n.begin(); i != n.end(); ++i) {