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CMake, Big Cleanup, CI Build and 3rd_Party
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Xphalnos
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161 changed files with 681 additions and 663 deletions
241
WIP/fs/fs_string_util.h
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241
WIP/fs/fs_string_util.h
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// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include "common/assert.h"
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namespace FileSys {
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template <typename T>
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constexpr int Strlen(const T* str) {
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ASSERT(str != nullptr);
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int length = 0;
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while (*str++) {
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++length;
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}
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return length;
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}
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template <typename T>
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constexpr int Strnlen(const T* str, std::size_t count) {
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return Strnlen(str, static_cast<int>(count));
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}
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template <typename T>
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constexpr int Strnlen(const T* str, int count) {
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ASSERT(str != nullptr);
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ASSERT(count >= 0);
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int length = 0;
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while (count-- && *str++) {
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++length;
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}
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return length;
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}
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template <typename T>
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constexpr int Strncmp(const T* lhs, const T* rhs, std::size_t count) {
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return Strncmp(lhs, rhs, static_cast<int>(count));
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}
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template <typename T>
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constexpr int Strncmp(const T* lhs, const T* rhs, int count) {
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ASSERT(lhs != nullptr);
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ASSERT(rhs != nullptr);
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ASSERT(count >= 0);
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if (count == 0) {
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return 0;
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}
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T l, r;
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do {
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l = *(lhs++);
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r = *(rhs++);
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} while (l && (l == r) && (--count));
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return l - r;
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}
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template <typename T>
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static constexpr int Strlcpy(T* dst, const T* src, std::size_t count) {
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return Strlcpy<T>(dst, src, static_cast<int>(count));
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}
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template <typename T>
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static constexpr int Strlcpy(T* dst, const T* src, int count) {
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ASSERT(dst != nullptr);
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ASSERT(src != nullptr);
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const T* cur = src;
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if (count > 0) {
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while ((--count) && *cur) {
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*(dst++) = *(cur++);
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}
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*dst = 0;
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}
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while (*cur) {
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cur++;
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}
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return static_cast<int>(cur - src);
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}
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enum CharacterEncodingResult {
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CharacterEncodingResult_Success = 0,
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CharacterEncodingResult_InsufficientLength = 1,
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CharacterEncodingResult_InvalidFormat = 2,
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};
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namespace impl {
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class CharacterEncodingHelper {
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public:
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static constexpr int8_t Utf8NBytesInnerTable[0x100 + 1] = {
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-1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 7, 8,
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};
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static constexpr char GetUtf8NBytes(size_t i) {
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return static_cast<char>(Utf8NBytesInnerTable[1 + i]);
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}
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};
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} // namespace impl
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constexpr inline CharacterEncodingResult ConvertCharacterUtf8ToUtf32(u32* dst, const char* src) {
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// Check pre-conditions
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ASSERT(dst != nullptr);
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ASSERT(src != nullptr);
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// Perform the conversion
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const auto* p = src;
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switch (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[0]))) {
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case 1:
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*dst = static_cast<u32>(p[0]);
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return CharacterEncodingResult_Success;
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case 2:
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if ((static_cast<u32>(p[0]) & 0x1E) != 0) {
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if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) ==
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0) {
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*dst = (static_cast<u32>(p[0] & 0x1F) << 6) | (static_cast<u32>(p[1] & 0x3F) << 0);
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return CharacterEncodingResult_Success;
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}
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}
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break;
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case 3:
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if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) == 0 &&
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impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[2])) == 0) {
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const u32 c = (static_cast<u32>(p[0] & 0xF) << 12) |
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(static_cast<u32>(p[1] & 0x3F) << 6) |
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(static_cast<u32>(p[2] & 0x3F) << 0);
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if ((c & 0xF800) != 0 && (c & 0xF800) != 0xD800) {
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*dst = c;
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return CharacterEncodingResult_Success;
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}
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}
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return CharacterEncodingResult_InvalidFormat;
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case 4:
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if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) == 0 &&
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impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[2])) == 0 &&
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impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[3])) == 0) {
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const u32 c =
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(static_cast<u32>(p[0] & 0x7) << 18) | (static_cast<u32>(p[1] & 0x3F) << 12) |
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(static_cast<u32>(p[2] & 0x3F) << 6) | (static_cast<u32>(p[3] & 0x3F) << 0);
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if (c >= 0x10000 && c < 0x110000) {
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*dst = c;
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return CharacterEncodingResult_Success;
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}
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}
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return CharacterEncodingResult_InvalidFormat;
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default:
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break;
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}
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// We failed to convert
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return CharacterEncodingResult_InvalidFormat;
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}
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constexpr inline CharacterEncodingResult PickOutCharacterFromUtf8String(char* dst,
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const char** str) {
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// Check pre-conditions
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ASSERT(dst != nullptr);
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ASSERT(str != nullptr);
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ASSERT(*str != nullptr);
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// Clear the output
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dst[0] = 0;
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dst[1] = 0;
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dst[2] = 0;
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dst[3] = 0;
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// Perform the conversion
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const auto* p = *str;
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u32 c = static_cast<u32>(*p);
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switch (impl::CharacterEncodingHelper::GetUtf8NBytes(c)) {
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case 1:
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dst[0] = (*str)[0];
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++(*str);
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break;
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case 2:
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if ((p[0] & 0x1E) != 0) {
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if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) ==
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0) {
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c = (static_cast<u32>(p[0] & 0x1F) << 6) | (static_cast<u32>(p[1] & 0x3F) << 0);
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dst[0] = (*str)[0];
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dst[1] = (*str)[1];
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(*str) += 2;
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break;
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}
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}
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return CharacterEncodingResult_InvalidFormat;
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case 3:
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if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) == 0 &&
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impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[2])) == 0) {
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c = (static_cast<u32>(p[0] & 0xF) << 12) | (static_cast<u32>(p[1] & 0x3F) << 6) |
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(static_cast<u32>(p[2] & 0x3F) << 0);
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if ((c & 0xF800) != 0 && (c & 0xF800) != 0xD800) {
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dst[0] = (*str)[0];
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dst[1] = (*str)[1];
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dst[2] = (*str)[2];
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(*str) += 3;
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break;
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}
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}
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return CharacterEncodingResult_InvalidFormat;
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case 4:
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if (impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[1])) == 0 &&
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impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[2])) == 0 &&
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impl::CharacterEncodingHelper::GetUtf8NBytes(static_cast<unsigned char>(p[3])) == 0) {
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c = (static_cast<u32>(p[0] & 0x7) << 18) | (static_cast<u32>(p[1] & 0x3F) << 12) |
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(static_cast<u32>(p[2] & 0x3F) << 6) | (static_cast<u32>(p[3] & 0x3F) << 0);
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if (c >= 0x10000 && c < 0x110000) {
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dst[0] = (*str)[0];
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dst[1] = (*str)[1];
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dst[2] = (*str)[2];
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dst[3] = (*str)[3];
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(*str) += 4;
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break;
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}
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}
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return CharacterEncodingResult_InvalidFormat;
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default:
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return CharacterEncodingResult_InvalidFormat;
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}
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return CharacterEncodingResult_Success;
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}
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} // namespace FileSys
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