ladybird/AK/LexicalPath.h

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/*
* 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/ByteString.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:
enum StripExtension {
No,
Yes
};
explicit LexicalPath(ByteString);
bool is_absolute() const { return !m_string.is_empty() && m_string[0] == '/'; }
ByteString const& string() const { return m_string; }
StringView dirname() const { return m_dirname; }
StringView basename(StripExtension s = StripExtension::No) const { return s == StripExtension::No ? m_basename : m_basename.substring_view(0, m_basename.length() - m_extension.length() - 1); }
StringView title() const { return m_title; }
StringView extension() const { return m_extension; }
Vector<StringView> const& parts_view() const { return m_parts; }
[[nodiscard]] Vector<ByteString> parts() const;
bool has_extension(StringView) const;
bool is_child_of(LexicalPath const& possible_parent) const;
[[nodiscard]] LexicalPath append(StringView) const;
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[[nodiscard]] LexicalPath prepend(StringView) const;
[[nodiscard]] LexicalPath parent() const;
[[nodiscard]] static ByteString canonicalized_path(ByteString);
[[nodiscard]] static ByteString absolute_path(ByteString dir_path, ByteString target);
[[nodiscard]] static ByteString 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_byte_string() };
}
[[nodiscard]] static ByteString dirname(ByteString path)
{
auto lexical_path = LexicalPath(move(path));
return lexical_path.dirname();
}
[[nodiscard]] static ByteString basename(ByteString path, StripExtension s = StripExtension::No)
{
auto lexical_path = LexicalPath(move(path));
return lexical_path.basename(s);
}
[[nodiscard]] static ByteString title(ByteString path)
{
auto lexical_path = LexicalPath(move(path));
return lexical_path.title();
}
[[nodiscard]] static ByteString extension(ByteString path)
{
auto lexical_path = LexicalPath(move(path));
return lexical_path.extension();
}
private:
Vector<StringView> m_parts;
ByteString m_string;
StringView m_dirname;
StringView m_basename;
StringView m_title;
StringView m_extension;
};
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template<>
struct Formatter<LexicalPath> : Formatter<StringView> {
ErrorOr<void> format(FormatBuilder& builder, LexicalPath const& value)
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{
return Formatter<StringView>::format(builder, value.string());
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}
};
};
#if USING_AK_GLOBALLY
using AK::LexicalPath;
#endif