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