mirror of
https://github.com/Atmosphere-NX/Atmosphere-libs.git
synced 2025-06-21 11:02:45 +02:00
7d041e853d
* ams: update to build with gcc10/c++20 * remove mno-outline-atomics * ams: take care of most TODO C++20s * fusee/sept: update for gcc10 * whoosh, your code now uses pre-compiled headers * make: dependency fixes
123 lines
4.2 KiB
C++
123 lines
4.2 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "fs_dbm_rom_types.hpp"
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namespace ams::fs {
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namespace RomPathTool {
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constexpr inline u32 MaxPathLength = 0x300;
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struct RomEntryName {
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size_t length;
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const RomPathChar *path;
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};
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static_assert(util::is_pod<RomEntryName>::value);
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constexpr void InitializeRomEntryName(RomEntryName *entry) {
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AMS_ABORT_UNLESS(entry != nullptr);
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entry->length = 0;
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}
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constexpr inline bool IsSeparator(RomPathChar c) {
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return c == RomStringTraits::DirectorySeparator;
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}
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constexpr inline bool IsNullTerminator(RomPathChar c) {
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return c == RomStringTraits::NullTerminator;
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}
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constexpr inline bool IsDot(RomPathChar c) {
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return c == RomStringTraits::Dot;
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}
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constexpr inline bool IsCurrentDirectory(const RomEntryName &name) {
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return name.length == 1 && IsDot(name.path[0]);
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}
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constexpr inline bool IsCurrentDirectory(const RomPathChar *p, size_t length) {
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AMS_ABORT_UNLESS(p != nullptr);
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return length == 1 && IsDot(p[0]);
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}
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constexpr inline bool IsCurrentDirectory(const RomPathChar *p) {
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AMS_ABORT_UNLESS(p != nullptr);
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return IsDot(p[0]) && IsNullTerminator(p[1]);
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}
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constexpr inline bool IsParentDirectory(const RomEntryName &name) {
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return name.length == 2 && IsDot(name.path[0]) && IsDot(name.path[1]);
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}
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constexpr inline bool IsParentDirectory(const RomPathChar *p) {
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AMS_ABORT_UNLESS(p != nullptr);
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return IsDot(p[0]) && IsDot(p[1]) && IsNullTerminator(p[2]);
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}
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constexpr inline bool IsParentDirectory(const RomPathChar *p, size_t length) {
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AMS_ABORT_UNLESS(p != nullptr);
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return length == 2 && IsDot(p[0]) && IsDot(p[1]);
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}
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constexpr inline bool IsEqualPath(const RomPathChar *lhs, const RomPathChar *rhs, size_t length) {
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AMS_ABORT_UNLESS(lhs != nullptr);
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AMS_ABORT_UNLESS(rhs != nullptr);
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return std::strncmp(lhs, rhs, length) == 0;
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}
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constexpr inline bool IsEqualName(const RomEntryName &lhs, const RomPathChar *rhs) {
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AMS_ABORT_UNLESS(rhs != nullptr);
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if (strnlen(rhs, MaxPathLength) != lhs.length) {
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return false;
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}
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return IsEqualPath(lhs.path, rhs, lhs.length);
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}
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constexpr inline bool IsEqualName(const RomEntryName &lhs, const RomEntryName &rhs) {
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if (lhs.length != rhs.length) {
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return false;
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}
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return IsEqualPath(lhs.path, rhs.path, lhs.length);
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}
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Result GetParentDirectoryName(RomEntryName *out, const RomEntryName &cur, const RomPathChar *p);
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class PathParser {
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private:
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const RomPathChar *prev_path_start;
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const RomPathChar *prev_path_end;
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const RomPathChar *next_path;
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bool finished;
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public:
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constexpr PathParser() : prev_path_start(), prev_path_end(), next_path(), finished() { /* ... */ }
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Result Initialize(const RomPathChar *path);
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void Finalize();
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bool IsFinished() const;
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bool IsDirectoryPath() const;
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Result GetAsDirectoryName(RomEntryName *out) const;
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Result GetAsFileName(RomEntryName *out) const;
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Result GetNextDirectoryName(RomEntryName *out);
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};
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}
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}
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