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/*
* 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/checks.h"
#include "webrtc/base/logging.h"
#include "webrtc/base/pathutils.h"
#include "webrtc/base/stringutils.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
#ifdef 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 (nullptr != ::strchr(FOLDER_DELIMS, ch));
}
char Pathname::DefaultFolderDelimiter() {
return DEFAULT_FOLDER_DELIM;
}
Pathname::Pathname()
: folder_delimiter_(DEFAULT_FOLDER_DELIM) {
}
Pathname::Pathname(const Pathname&) = default;
Pathname::Pathname(Pathname&&) = default;
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);
}
Pathname& Pathname::operator=(const Pathname&) = default;
Pathname& Pathname::operator=(Pathname&&) = default;
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;
}
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);
}
std::string Pathname::folder() const {
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_);
}
}
bool Pathname::SetBasename(const std::string& basename) {
if(basename.find_first_of(FOLDER_DELIMS) != std::string::npos) {
return false;
}
basename_.assign(basename);
return true;
}
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));
}
}
///////////////////////////////////////////////////////////////////////////////
} // namespace rtc
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