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tdlib-fork/tdutils/td/utils/PathView.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/utils/Slice.h"
namespace td {
class PathView {
public:
explicit PathView(Slice path);
bool empty() const {
return path_.empty();
}
bool is_dir() const {
if (empty()) {
return false;
}
return is_slash(path_.back());
}
Slice parent_dir() const {
return path_.substr(0, last_slash_ + 1);
}
Slice extension() const {
if (last_dot_ == static_cast<int32>(path_.size())) {
return Slice();
}
return path_.substr(last_dot_ + 1);
}
Slice without_extension() const {
return path_.substr(0, last_dot_);
}
Slice file_stem() const {
return path_.substr(last_slash_ + 1, last_dot_ - last_slash_ - 1);
}
Slice file_name() const {
return path_.substr(last_slash_ + 1);
}
Slice path() const {
return path_;
}
bool is_absolute() const {
return !empty() && (is_slash(path_[0]) || (path_.size() >= 3 && path_[1] == ':' && is_slash(path_[2])));
}
bool is_relative() const {
return !is_absolute();
}
static Slice relative(Slice path, Slice dir, bool force = false);
private:
static bool is_slash(char c) {
return c == '/' || c == '\\';
}
Slice path_;
int32 last_slash_;
int32 last_dot_;
};
} // namespace td