ladybird/AK/LexicalPath.h
kleines Filmröllchen 16ca41ec10 AK: Add LexicalPath::is_child_of
This API checks whether this path is a child of (or the same as) another
path.
2022-12-11 16:05:23 +00:00

102 lines
3.0 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Max Wipfli <max.wipfli@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/DeprecatedString.h>
#include <AK/Vector.h>
// On Linux distros that use mlibc `basename` is defined as a macro that expands to `__mlibc_gnu_basename` or `__mlibc_gnu_basename_c`, so we undefine it.
#if defined(AK_OS_LINUX) && defined(basename)
# undef basename
#endif
namespace AK {
class LexicalPath {
public:
explicit LexicalPath(DeprecatedString);
bool is_absolute() const { return !m_string.is_empty() && m_string[0] == '/'; }
DeprecatedString const& string() const { return m_string; }
StringView dirname() const { return m_dirname; }
StringView basename() const { return m_basename; }
StringView title() const { return m_title; }
StringView extension() const { return m_extension; }
Vector<StringView> const& parts_view() const { return m_parts; }
[[nodiscard]] Vector<DeprecatedString> parts() const;
bool has_extension(StringView) const;
bool is_child_of(LexicalPath const& possible_parent) const;
[[nodiscard]] LexicalPath append(StringView) const;
[[nodiscard]] LexicalPath prepend(StringView) const;
[[nodiscard]] LexicalPath parent() const;
[[nodiscard]] static DeprecatedString canonicalized_path(DeprecatedString);
[[nodiscard]] static DeprecatedString absolute_path(DeprecatedString dir_path, DeprecatedString target);
[[nodiscard]] static DeprecatedString relative_path(StringView absolute_path, StringView prefix);
template<typename... S>
[[nodiscard]] static LexicalPath join(StringView first, S&&... rest)
{
StringBuilder builder;
builder.append(first);
((builder.append('/'), builder.append(forward<S>(rest))), ...);
return LexicalPath { builder.to_deprecated_string() };
}
[[nodiscard]] static DeprecatedString dirname(DeprecatedString path)
{
auto lexical_path = LexicalPath(move(path));
return lexical_path.dirname();
}
[[nodiscard]] static DeprecatedString basename(DeprecatedString path)
{
auto lexical_path = LexicalPath(move(path));
return lexical_path.basename();
}
[[nodiscard]] static DeprecatedString title(DeprecatedString path)
{
auto lexical_path = LexicalPath(move(path));
return lexical_path.title();
}
[[nodiscard]] static DeprecatedString extension(DeprecatedString path)
{
auto lexical_path = LexicalPath(move(path));
return lexical_path.extension();
}
private:
Vector<StringView> m_parts;
DeprecatedString m_string;
StringView m_dirname;
StringView m_basename;
StringView m_title;
StringView m_extension;
};
template<>
struct Formatter<LexicalPath> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder& builder, LexicalPath const& value)
{
return Formatter<StringView>::format(builder, value.string());
}
};
};
#if USING_AK_GLOBALLY
using AK::LexicalPath;
#endif