Adds a modified copy of talk/base to webrtc/base. It is the first step in
migrating talk/base to webrtc/base.
BUG=N/A
R=niklas.enbom@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/17479005
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6129 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/base/pathutils.cc b/webrtc/base/pathutils.cc
new file mode 100644
index 0000000..7671bfc
--- /dev/null
+++ b/webrtc/base/pathutils.cc
@@ -0,0 +1,251 @@
+/*
+ * Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#if defined(WEBRTC_WIN)
+#include "webrtc/base/win32.h"
+#include <shellapi.h>
+#include <shlobj.h>
+#include <tchar.h>
+#endif // WEBRTC_WIN
+
+#include "webrtc/base/common.h"
+#include "webrtc/base/fileutils.h"
+#include "webrtc/base/logging.h"
+#include "webrtc/base/pathutils.h"
+#include "webrtc/base/stringutils.h"
+#include "webrtc/base/urlencode.h"
+
+namespace rtc {
+
+static const char EMPTY_STR[] = "";
+
+// EXT_DELIM separates a file basename from extension
+const char EXT_DELIM = '.';
+
+// FOLDER_DELIMS separate folder segments and the filename
+const char* const FOLDER_DELIMS = "/\\";
+
+// DEFAULT_FOLDER_DELIM is the preferred delimiter for this platform
+#if WEBRTC_WIN
+const char DEFAULT_FOLDER_DELIM = '\\';
+#else // !WEBRTC_WIN
+const char DEFAULT_FOLDER_DELIM = '/';
+#endif // !WEBRTC_WIN
+
+///////////////////////////////////////////////////////////////////////////////
+// Pathname - parsing of pathnames into components, and vice versa
+///////////////////////////////////////////////////////////////////////////////
+
+bool Pathname::IsFolderDelimiter(char ch) {
+ return (NULL != ::strchr(FOLDER_DELIMS, ch));
+}
+
+char Pathname::DefaultFolderDelimiter() {
+ return DEFAULT_FOLDER_DELIM;
+}
+
+Pathname::Pathname()
+ : folder_delimiter_(DEFAULT_FOLDER_DELIM) {
+}
+
+Pathname::Pathname(const std::string& pathname)
+ : folder_delimiter_(DEFAULT_FOLDER_DELIM) {
+ SetPathname(pathname);
+}
+
+Pathname::Pathname(const std::string& folder, const std::string& filename)
+ : folder_delimiter_(DEFAULT_FOLDER_DELIM) {
+ SetPathname(folder, filename);
+}
+
+void Pathname::SetFolderDelimiter(char delimiter) {
+ ASSERT(IsFolderDelimiter(delimiter));
+ folder_delimiter_ = delimiter;
+}
+
+void Pathname::Normalize() {
+ for (size_t i=0; i<folder_.length(); ++i) {
+ if (IsFolderDelimiter(folder_[i])) {
+ folder_[i] = folder_delimiter_;
+ }
+ }
+}
+
+void Pathname::clear() {
+ folder_.clear();
+ basename_.clear();
+ extension_.clear();
+}
+
+bool Pathname::empty() const {
+ return folder_.empty() && basename_.empty() && extension_.empty();
+}
+
+std::string Pathname::pathname() const {
+ std::string pathname(folder_);
+ pathname.append(basename_);
+ pathname.append(extension_);
+ if (pathname.empty()) {
+ // Instead of the empty pathname, return the current working directory.
+ pathname.push_back('.');
+ pathname.push_back(folder_delimiter_);
+ }
+ return pathname;
+}
+
+std::string Pathname::url() const {
+ std::string s = "file:///";
+ for (size_t i=0; i<folder_.length(); ++i) {
+ if (IsFolderDelimiter(folder_[i]))
+ s += '/';
+ else
+ s += folder_[i];
+ }
+ s += basename_;
+ s += extension_;
+ return UrlEncodeStringForOnlyUnsafeChars(s);
+}
+
+void Pathname::SetPathname(const std::string& pathname) {
+ std::string::size_type pos = pathname.find_last_of(FOLDER_DELIMS);
+ if (pos != std::string::npos) {
+ SetFolder(pathname.substr(0, pos + 1));
+ SetFilename(pathname.substr(pos + 1));
+ } else {
+ SetFolder(EMPTY_STR);
+ SetFilename(pathname);
+ }
+}
+
+void Pathname::SetPathname(const std::string& folder,
+ const std::string& filename) {
+ SetFolder(folder);
+ SetFilename(filename);
+}
+
+void Pathname::AppendPathname(const std::string& pathname) {
+ std::string full_pathname(folder_);
+ full_pathname.append(pathname);
+ SetPathname(full_pathname);
+}
+
+std::string Pathname::folder() const {
+ return folder_;
+}
+
+std::string Pathname::folder_name() const {
+ std::string::size_type pos = std::string::npos;
+ if (folder_.size() >= 2) {
+ pos = folder_.find_last_of(FOLDER_DELIMS, folder_.length() - 2);
+ }
+ if (pos != std::string::npos) {
+ return folder_.substr(pos + 1);
+ } else {
+ return folder_;
+ }
+}
+
+std::string Pathname::parent_folder() const {
+ std::string::size_type pos = std::string::npos;
+ if (folder_.size() >= 2) {
+ pos = folder_.find_last_of(FOLDER_DELIMS, folder_.length() - 2);
+ }
+ if (pos != std::string::npos) {
+ return folder_.substr(0, pos + 1);
+ } else {
+ return EMPTY_STR;
+ }
+}
+
+void Pathname::SetFolder(const std::string& folder) {
+ folder_.assign(folder);
+ // Ensure folder ends in a path delimiter
+ if (!folder_.empty() && !IsFolderDelimiter(folder_[folder_.length()-1])) {
+ folder_.push_back(folder_delimiter_);
+ }
+}
+
+void Pathname::AppendFolder(const std::string& folder) {
+ folder_.append(folder);
+ // Ensure folder ends in a path delimiter
+ if (!folder_.empty() && !IsFolderDelimiter(folder_[folder_.length()-1])) {
+ folder_.push_back(folder_delimiter_);
+ }
+}
+
+std::string Pathname::basename() const {
+ return basename_;
+}
+
+bool Pathname::SetBasename(const std::string& basename) {
+ if(basename.find_first_of(FOLDER_DELIMS) != std::string::npos) {
+ return false;
+ }
+ basename_.assign(basename);
+ return true;
+}
+
+std::string Pathname::extension() const {
+ return extension_;
+}
+
+bool Pathname::SetExtension(const std::string& extension) {
+ if (extension.find_first_of(FOLDER_DELIMS) != std::string::npos ||
+ extension.find_first_of(EXT_DELIM, 1) != std::string::npos) {
+ return false;
+ }
+ extension_.assign(extension);
+ // Ensure extension begins with the extension delimiter
+ if (!extension_.empty() && (extension_[0] != EXT_DELIM)) {
+ extension_.insert(extension_.begin(), EXT_DELIM);
+ }
+ return true;
+}
+
+std::string Pathname::filename() const {
+ std::string filename(basename_);
+ filename.append(extension_);
+ return filename;
+}
+
+bool Pathname::SetFilename(const std::string& filename) {
+ std::string::size_type pos = filename.rfind(EXT_DELIM);
+ if ((pos == std::string::npos) || (pos == 0)) {
+ return SetExtension(EMPTY_STR) && SetBasename(filename);
+ } else {
+ return SetExtension(filename.substr(pos)) && SetBasename(filename.substr(0, pos));
+ }
+}
+
+#if defined(WEBRTC_WIN)
+bool Pathname::GetDrive(char *drive, uint32 bytes) const {
+ return GetDrive(drive, bytes, folder_);
+}
+
+// static
+bool Pathname::GetDrive(char *drive, uint32 bytes,
+ const std::string& pathname) {
+ // need at lease 4 bytes to save c:
+ if (bytes < 4 || pathname.size() < 3) {
+ return false;
+ }
+
+ memcpy(drive, pathname.c_str(), 3);
+ drive[3] = 0;
+ // sanity checking
+ return (isalpha(drive[0]) &&
+ drive[1] == ':' &&
+ drive[2] == '\\');
+}
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+
+} // namespace rtc