diff options
author | chai <chaifix@163.com> | 2019-08-16 08:54:08 +0800 |
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committer | chai <chaifix@163.com> | 2019-08-16 08:54:08 +0800 |
commit | a077eb38b01292611f4f6031b75e3e2c1c20f06e (patch) | |
tree | 8f760483d7b0290952bbdb5bcd8f3943102aeb3a /Source/modules/asura-core/Font/Utf.inc | |
parent | 6a065c913e9308cc72e1ad0723b6167048f439b6 (diff) |
Diffstat (limited to 'Source/modules/asura-core/Font/Utf.inc')
-rw-r--r-- | Source/modules/asura-core/Font/Utf.inc | 752 |
1 files changed, 0 insertions, 752 deletions
diff --git a/Source/modules/asura-core/Font/Utf.inc b/Source/modules/asura-core/Font/Utf.inc deleted file mode 100644 index 69a523b..0000000 --- a/Source/modules/asura-core/Font/Utf.inc +++ /dev/null @@ -1,752 +0,0 @@ -//////////////////////////////////////////////////////////// -// -// SFML - Simple and Fast Multimedia Library -// Copyright (C) 2007-2019 Laurent Gomila (laurent@sfml-dev.org) -// -// This software is provided 'as-is', without any express or implied warranty. -// In no event will the authors be held liable for any damages arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it freely, -// subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; -// you must not claim that you wrote the original software. -// If you use this software in a product, an acknowledgment -// in the product documentation would be appreciated but is not required. -// -// 2. Altered source versions must be plainly marked as such, -// and must not be misrepresented as being the original software. -// -// 3. This notice may not be removed or altered from any source distribution. -// -//////////////////////////////////////////////////////////// - - -//////////////////////////////////////////////////////////// -// References: -// -// https://www.unicode.org/ -// https://www.unicode.org/Public/PROGRAMS/CVTUTF/ConvertUTF.c -// https://www.unicode.org/Public/PROGRAMS/CVTUTF/ConvertUTF.h -// https://people.w3.org/rishida/scripts/uniview/conversion -// -//////////////////////////////////////////////////////////// - - -//////////////////////////////////////////////////////////// -template <typename In> -In Utf<8>::Decode(In begin, In end, Uint32& output, Uint32 replacement) -{ - // Some useful precomputed data - static const int trailing[256] = - { - 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, 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, 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, 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, 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, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 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, 1, 1, 1, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5 - }; - static const Uint32 offsets[6] = - { - 0x00000000, 0x00003080, 0x000E2080, 0x03C82080, 0xFA082080, 0x82082080 - }; - - // decode the character - int trailingBytes = trailing[static_cast<Uint8>(*begin)]; - if (begin + trailingBytes < end) - { - output = 0; - switch (trailingBytes) - { - case 5: output += static_cast<Uint8>(*begin++); output <<= 6; - case 4: output += static_cast<Uint8>(*begin++); output <<= 6; - case 3: output += static_cast<Uint8>(*begin++); output <<= 6; - case 2: output += static_cast<Uint8>(*begin++); output <<= 6; - case 1: output += static_cast<Uint8>(*begin++); output <<= 6; - case 0: output += static_cast<Uint8>(*begin++); - } - output -= offsets[trailingBytes]; - } - else - { - // Incomplete character - begin = end; - output = replacement; - } - - return begin; -} - - -//////////////////////////////////////////////////////////// -template <typename Out> -Out Utf<8>::Encode(Uint32 input, Out output, Uint8 replacement) -{ - // Some useful precomputed data - static const Uint8 firstBytes[7] = - { - 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC - }; - - // encode the character - if ((input > 0x0010FFFF) || ((input >= 0xD800) && (input <= 0xDBFF))) - { - // Invalid character - if (replacement) - *output++ = replacement; - } - else - { - // Valid character - - // Get the number of bytes to write - std::size_t bytestoWrite = 1; - if (input < 0x80) bytestoWrite = 1; - else if (input < 0x800) bytestoWrite = 2; - else if (input < 0x10000) bytestoWrite = 3; - else if (input <= 0x0010FFFF) bytestoWrite = 4; - - // Extract the bytes to write - Uint8 bytes[4]; - switch (bytestoWrite) - { - case 4: bytes[3] = static_cast<Uint8>((input | 0x80) & 0xBF); input >>= 6; - case 3: bytes[2] = static_cast<Uint8>((input | 0x80) & 0xBF); input >>= 6; - case 2: bytes[1] = static_cast<Uint8>((input | 0x80) & 0xBF); input >>= 6; - case 1: bytes[0] = static_cast<Uint8> (input | firstBytes[bytestoWrite]); - } - - // Add them to the output - output = std::copy(bytes, bytes + bytestoWrite, output); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In> -In Utf<8>::Next(In begin, In end) -{ - Uint32 codepoint; - return Decode(begin, end, codepoint); -} - - -//////////////////////////////////////////////////////////// -template <typename In> -std::size_t Utf<8>::Count(In begin, In end) -{ - std::size_t length = 0; - while (begin < end) - { - begin = Next(begin, end); - ++length; - } - - return length; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::FromAnsi(In begin, In end, Out output, const std::locale& locale) -{ - while (begin < end) - { - Uint32 codepoint = Utf<32>::DecodeAnsi(*begin++, locale); - output = Encode(codepoint, output); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::FromWide(In begin, In end, Out output) -{ - while (begin < end) - { - Uint32 codepoint = Utf<32>::DecodeWide(*begin++); - output = Encode(codepoint, output); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::FromLatin1(In begin, In end, Out output) -{ - // Latin-1 is directly compatible with Unicode encodings, - // and can thus be treated as (a sub-range of) UTF-32 - while (begin < end) - output = Encode(*begin++, output); - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::ToAnsi(In begin, In end, Out output, char replacement, const std::locale& locale) -{ - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - output = Utf<32>::EncodeAnsi(codepoint, output, replacement, locale); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::ToWide(In begin, In end, Out output, wchar_t replacement) -{ - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - output = Utf<32>::EncodeWide(codepoint, output, replacement); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::ToLatin1(In begin, In end, Out output, char replacement) -{ - // Latin-1 is directly compatible with Unicode encodings, - // and can thus be treated as (a sub-range of) UTF-32 - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - *output++ = codepoint < 256 ? static_cast<char>(codepoint) : replacement; - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::ToUtf8(In begin, In end, Out output) -{ - return std::copy(begin, end, output); -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::ToUtf16(In begin, In end, Out output) -{ - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - output = Utf<16>::Encode(codepoint, output); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<8>::ToUtf32(In begin, In end, Out output) -{ - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - *output++ = codepoint; - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In> -In Utf<16>::Decode(In begin, In end, Uint32& output, Uint32 replacement) -{ - Uint16 first = *begin++; - - // If it's a surrogate pair, first convert to a single UTF-32 character - if ((first >= 0xD800) && (first <= 0xDBFF)) - { - if (begin < end) - { - Uint32 second = *begin++; - if ((second >= 0xDC00) && (second <= 0xDFFF)) - { - // The second element is valid: convert the two elements to a UTF-32 character - output = ((first - 0xD800) << 10) + (second - 0xDC00) + 0x0010000; - } - else - { - // Invalid character - output = replacement; - } - } - else - { - // Invalid character - begin = end; - output = replacement; - } - } - else - { - // We can make a direct copy - output = first; - } - - return begin; -} - - -//////////////////////////////////////////////////////////// -template <typename Out> -Out Utf<16>::Encode(Uint32 input, Out output, Uint16 replacement) -{ - if (input <= 0xFFFF) - { - // The character can be copied directly, we just need to check if it's in the valid range - if ((input >= 0xD800) && (input <= 0xDFFF)) - { - // Invalid character (this range is reserved) - if (replacement) - *output++ = replacement; - } - else - { - // Valid character directly convertible to a single UTF-16 character - *output++ = static_cast<Uint16>(input); - } - } - else if (input > 0x0010FFFF) - { - // Invalid character (greater than the maximum Unicode value) - if (replacement) - *output++ = replacement; - } - else - { - // The input character will be converted to two UTF-16 elements - input -= 0x0010000; - *output++ = static_cast<Uint16>((input >> 10) + 0xD800); - *output++ = static_cast<Uint16>((input & 0x3FFUL) + 0xDC00); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In> -In Utf<16>::Next(In begin, In end) -{ - Uint32 codepoint; - return Decode(begin, end, codepoint); -} - - -//////////////////////////////////////////////////////////// -template <typename In> -std::size_t Utf<16>::Count(In begin, In end) -{ - std::size_t length = 0; - while (begin < end) - { - begin = Next(begin, end); - ++length; - } - - return length; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::FromAnsi(In begin, In end, Out output, const std::locale& locale) -{ - while (begin < end) - { - Uint32 codepoint = Utf<32>::DecodeAnsi(*begin++, locale); - output = Encode(codepoint, output); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::FromWide(In begin, In end, Out output) -{ - while (begin < end) - { - Uint32 codepoint = Utf<32>::DecodeWide(*begin++); - output = Encode(codepoint, output); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::FromLatin1(In begin, In end, Out output) -{ - // Latin-1 is directly compatible with Unicode encodings, - // and can thus be treated as (a sub-range of) UTF-32 - return std::copy(begin, end, output); -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::ToAnsi(In begin, In end, Out output, char replacement, const std::locale& locale) -{ - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - output = Utf<32>::EncodeAnsi(codepoint, output, replacement, locale); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::ToWide(In begin, In end, Out output, wchar_t replacement) -{ - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - output = Utf<32>::EncodeWide(codepoint, output, replacement); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::ToLatin1(In begin, In end, Out output, char replacement) -{ - // Latin-1 is directly compatible with Unicode encodings, - // and can thus be treated as (a sub-range of) UTF-32 - while (begin < end) - { - *output++ = *begin < 256 ? static_cast<char>(*begin) : replacement; - begin++; - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::ToUtf8(In begin, In end, Out output) -{ - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - output = Utf<8>::Encode(codepoint, output); - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::ToUtf16(In begin, In end, Out output) -{ - return std::copy(begin, end, output); -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<16>::ToUtf32(In begin, In end, Out output) -{ - while (begin < end) - { - Uint32 codepoint; - begin = Decode(begin, end, codepoint); - *output++ = codepoint; - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In> -In Utf<32>::Decode(In begin, In /*end*/, Uint32& output, Uint32 /*replacement*/) -{ - output = *begin++; - return begin; -} - - -//////////////////////////////////////////////////////////// -template <typename Out> -Out Utf<32>::Encode(Uint32 input, Out output, Uint32 /*replacement*/) -{ - *output++ = input; - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In> -In Utf<32>::Next(In begin, In /*end*/) -{ - return ++begin; -} - - -//////////////////////////////////////////////////////////// -template <typename In> -std::size_t Utf<32>::Count(In begin, In end) -{ - return begin - end; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::FromAnsi(In begin, In end, Out output, const std::locale& locale) -{ - while (begin < end) - *output++ = DecodeAnsi(*begin++, locale); - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::FromWide(In begin, In end, Out output) -{ - while (begin < end) - *output++ = DecodeWide(*begin++); - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::FromLatin1(In begin, In end, Out output) -{ - // Latin-1 is directly compatible with Unicode encodings, - // and can thus be treated as (a sub-range of) UTF-32 - return std::copy(begin, end, output); -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::ToAnsi(In begin, In end, Out output, char replacement, const std::locale& locale) -{ - while (begin < end) - output = EncodeAnsi(*begin++, output, replacement, locale); - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::ToWide(In begin, In end, Out output, wchar_t replacement) -{ - while (begin < end) - output = EncodeWide(*begin++, output, replacement); - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::ToLatin1(In begin, In end, Out output, char replacement) -{ - // Latin-1 is directly compatible with Unicode encodings, - // and can thus be treated as (a sub-range of) UTF-32 - while (begin < end) - { - *output++ = *begin < 256 ? static_cast<char>(*begin) : replacement; - begin++; - } - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::ToUtf8(In begin, In end, Out output) -{ - while (begin < end) - output = Utf<8>::Encode(*begin++, output); - - return output; -} - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::ToUtf16(In begin, In end, Out output) -{ - while (begin < end) - output = Utf<16>::Encode(*begin++, output); - - return output; -} - - -//////////////////////////////////////////////////////////// -template <typename In, typename Out> -Out Utf<32>::ToUtf32(In begin, In end, Out output) -{ - return std::copy(begin, end, output); -} - - -//////////////////////////////////////////////////////////// -template <typename In> -Uint32 Utf<32>::DecodeAnsi(In input, const std::locale& locale) -{ - // On Windows, GCC's standard library (glibc++) has almost - // no support for Unicode stuff. As a consequence, in this - // context we can only use the default locale and ignore - // the one passed as parameter. - - #if defined(SFML_SYSTEM_WINDOWS) && /* if Windows ... */ \ - (defined(__GLIBCPP__) || defined (__GLIBCXX__)) && /* ... and standard library is glibc++ ... */ \ - !(defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)) /* ... and STLPort is not used on top of it */ - - (void)locale; // to avoid warnings - - wchar_t character = 0; - mbtowc(&character, &input, 1); - return static_cast<Uint32>(character); - - #else - - // Get the facet of the locale which deals with character conversion - const std::ctype<wchar_t>& facet = std::use_facet< std::ctype<wchar_t> >(locale); - - // Use the facet to convert each character of the input string - return static_cast<Uint32>(facet.widen(input)); - - #endif -} - - -//////////////////////////////////////////////////////////// -template <typename In> -Uint32 Utf<32>::DecodeWide(In input) -{ - // The encoding of wide characters is not well defined and is left to the system; - // however we can safely assume that it is UCS-2 on Windows and - // UCS-4 on Unix systems. - // In both cases, a simple copy is enough (UCS-2 is a subset of UCS-4, - // and UCS-4 *is* UTF-32). - - return input; -} - - -//////////////////////////////////////////////////////////// -template <typename Out> -Out Utf<32>::EncodeAnsi(Uint32 codepoint, Out output, char replacement, const std::locale& locale) -{ - // On Windows, gcc's standard library (glibc++) has almost - // no support for Unicode stuff. As a consequence, in this - // context we can only use the default locale and ignore - // the one passed as parameter. - - #if defined(SFML_SYSTEM_WINDOWS) && /* if Windows ... */ \ - (defined(__GLIBCPP__) || defined (__GLIBCXX__)) && /* ... and standard library is glibc++ ... */ \ - !(defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)) /* ... and STLPort is not used on top of it */ - - (void)locale; // to avoid warnings - - char character = 0; - if (wctomb(&character, static_cast<wchar_t>(codepoint)) >= 0) - *output++ = character; - else if (replacement) - *output++ = replacement; - - return output; - - #else - - // Get the facet of the locale which deals with character conversion - const std::ctype<wchar_t>& facet = std::use_facet< std::ctype<wchar_t> >(locale); - - // Use the facet to convert each character of the input string - *output++ = facet.narrow(static_cast<wchar_t>(codepoint), replacement); - - return output; - - #endif -} - - -//////////////////////////////////////////////////////////// -template <typename Out> -Out Utf<32>::EncodeWide(Uint32 codepoint, Out output, wchar_t replacement) -{ - // The encoding of wide characters is not well defined and is left to the system; - // however we can safely assume that it is UCS-2 on Windows and - // UCS-4 on Unix systems. - // For UCS-2 we need to check if the source characters fits in (UCS-2 is a subset of UCS-4). - // For UCS-4 we can do a direct copy (UCS-4 *is* UTF-32). - - switch (sizeof(wchar_t)) - { - case 4: - { - *output++ = static_cast<wchar_t>(codepoint); - break; - } - - default: - { - if ((codepoint <= 0xFFFF) && ((codepoint < 0xD800) || (codepoint > 0xDFFF))) - { - *output++ = static_cast<wchar_t>(codepoint); - } - else if (replacement) - { - *output++ = replacement; - } - break; - } - } - - return output; -} |