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1 /* | |
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #if defined(WEBRTC_WIN) | |
12 #include "webrtc/base/win32.h" | |
13 #include <shellapi.h> | |
14 #include <shlobj.h> | |
15 #include <tchar.h> | |
16 #endif // WEBRTC_WIN | |
17 | |
18 #include "webrtc/base/checks.h" | |
19 #include "webrtc/base/logging.h" | |
20 #include "webrtc/base/pathutils.h" | |
21 #include "webrtc/base/stringutils.h" | |
22 | |
23 namespace rtc { | |
24 | |
25 static const char EMPTY_STR[] = ""; | |
26 | |
27 // EXT_DELIM separates a file basename from extension | |
28 const char EXT_DELIM = '.'; | |
29 | |
30 // FOLDER_DELIMS separate folder segments and the filename | |
31 const char* const FOLDER_DELIMS = "/\\"; | |
32 | |
33 // DEFAULT_FOLDER_DELIM is the preferred delimiter for this platform | |
34 #ifdef WEBRTC_WIN | |
35 const char DEFAULT_FOLDER_DELIM = '\\'; | |
36 #else // !WEBRTC_WIN | |
37 const char DEFAULT_FOLDER_DELIM = '/'; | |
38 #endif // !WEBRTC_WIN | |
39 | |
40 /////////////////////////////////////////////////////////////////////////////// | |
41 // Pathname - parsing of pathnames into components, and vice versa | |
42 /////////////////////////////////////////////////////////////////////////////// | |
43 | |
44 bool Pathname::IsFolderDelimiter(char ch) { | |
45 return (nullptr != ::strchr(FOLDER_DELIMS, ch)); | |
46 } | |
47 | |
48 char Pathname::DefaultFolderDelimiter() { | |
49 return DEFAULT_FOLDER_DELIM; | |
50 } | |
51 | |
52 Pathname::Pathname() | |
53 : folder_delimiter_(DEFAULT_FOLDER_DELIM) { | |
54 } | |
55 | |
56 Pathname::Pathname(const Pathname&) = default; | |
57 Pathname::Pathname(Pathname&&) = default; | |
58 | |
59 Pathname::Pathname(const std::string& pathname) | |
60 : folder_delimiter_(DEFAULT_FOLDER_DELIM) { | |
61 SetPathname(pathname); | |
62 } | |
63 | |
64 Pathname::Pathname(const std::string& folder, const std::string& filename) | |
65 : folder_delimiter_(DEFAULT_FOLDER_DELIM) { | |
66 SetPathname(folder, filename); | |
67 } | |
68 | |
69 Pathname& Pathname::operator=(const Pathname&) = default; | |
70 Pathname& Pathname::operator=(Pathname&&) = default; | |
71 | |
72 void Pathname::Normalize() { | |
73 for (size_t i=0; i<folder_.length(); ++i) { | |
74 if (IsFolderDelimiter(folder_[i])) { | |
75 folder_[i] = folder_delimiter_; | |
76 } | |
77 } | |
78 } | |
79 | |
80 void Pathname::clear() { | |
81 folder_.clear(); | |
82 basename_.clear(); | |
83 extension_.clear(); | |
84 } | |
85 | |
86 bool Pathname::empty() const { | |
87 return folder_.empty() && basename_.empty() && extension_.empty(); | |
88 } | |
89 | |
90 std::string Pathname::pathname() const { | |
91 std::string pathname(folder_); | |
92 pathname.append(basename_); | |
93 pathname.append(extension_); | |
94 if (pathname.empty()) { | |
95 // Instead of the empty pathname, return the current working directory. | |
96 pathname.push_back('.'); | |
97 pathname.push_back(folder_delimiter_); | |
98 } | |
99 return pathname; | |
100 } | |
101 | |
102 void Pathname::SetPathname(const std::string& pathname) { | |
103 std::string::size_type pos = pathname.find_last_of(FOLDER_DELIMS); | |
104 if (pos != std::string::npos) { | |
105 SetFolder(pathname.substr(0, pos + 1)); | |
106 SetFilename(pathname.substr(pos + 1)); | |
107 } else { | |
108 SetFolder(EMPTY_STR); | |
109 SetFilename(pathname); | |
110 } | |
111 } | |
112 | |
113 void Pathname::SetPathname(const std::string& folder, | |
114 const std::string& filename) { | |
115 SetFolder(folder); | |
116 SetFilename(filename); | |
117 } | |
118 | |
119 std::string Pathname::folder() const { | |
120 return folder_; | |
121 } | |
122 | |
123 std::string Pathname::parent_folder() const { | |
124 std::string::size_type pos = std::string::npos; | |
125 if (folder_.size() >= 2) { | |
126 pos = folder_.find_last_of(FOLDER_DELIMS, folder_.length() - 2); | |
127 } | |
128 if (pos != std::string::npos) { | |
129 return folder_.substr(0, pos + 1); | |
130 } else { | |
131 return EMPTY_STR; | |
132 } | |
133 } | |
134 | |
135 void Pathname::SetFolder(const std::string& folder) { | |
136 folder_.assign(folder); | |
137 // Ensure folder ends in a path delimiter | |
138 if (!folder_.empty() && !IsFolderDelimiter(folder_[folder_.length()-1])) { | |
139 folder_.push_back(folder_delimiter_); | |
140 } | |
141 } | |
142 | |
143 void Pathname::AppendFolder(const std::string& folder) { | |
144 folder_.append(folder); | |
145 // Ensure folder ends in a path delimiter | |
146 if (!folder_.empty() && !IsFolderDelimiter(folder_[folder_.length()-1])) { | |
147 folder_.push_back(folder_delimiter_); | |
148 } | |
149 } | |
150 | |
151 bool Pathname::SetBasename(const std::string& basename) { | |
152 if(basename.find_first_of(FOLDER_DELIMS) != std::string::npos) { | |
153 return false; | |
154 } | |
155 basename_.assign(basename); | |
156 return true; | |
157 } | |
158 | |
159 bool Pathname::SetExtension(const std::string& extension) { | |
160 if (extension.find_first_of(FOLDER_DELIMS) != std::string::npos || | |
161 extension.find_first_of(EXT_DELIM, 1) != std::string::npos) { | |
162 return false; | |
163 } | |
164 extension_.assign(extension); | |
165 // Ensure extension begins with the extension delimiter | |
166 if (!extension_.empty() && (extension_[0] != EXT_DELIM)) { | |
167 extension_.insert(extension_.begin(), EXT_DELIM); | |
168 } | |
169 return true; | |
170 } | |
171 | |
172 std::string Pathname::filename() const { | |
173 std::string filename(basename_); | |
174 filename.append(extension_); | |
175 return filename; | |
176 } | |
177 | |
178 bool Pathname::SetFilename(const std::string& filename) { | |
179 std::string::size_type pos = filename.rfind(EXT_DELIM); | |
180 if ((pos == std::string::npos) || (pos == 0)) { | |
181 return SetExtension(EMPTY_STR) && SetBasename(filename); | |
182 } else { | |
183 return SetExtension(filename.substr(pos)) && SetBasename(filename.substr(0,
pos)); | |
184 } | |
185 } | |
186 | |
187 /////////////////////////////////////////////////////////////////////////////// | |
188 | |
189 } // namespace rtc | |
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