/** NOTE:
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* This code is based on the Utf implementation from SFML2. License zlib/png ( http://www.sfml-dev.org/license.php )
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* The class was modified to fit efsw own needs. This is not the original implementation from SFML2.
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* */
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#ifndef EFSW_UTF_HPP
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#define EFSW_UTF_HPP
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include <locale>
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#include <string>
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#include <cstdlib>
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#include <efsw/base.hpp>
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namespace efsw {
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template <unsigned int N>
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class Utf;
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////////////////////////////////////////////////////////////
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/// \brief Specialization of the Utf template for UTF-8
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///
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////////////////////////////////////////////////////////////
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template <>
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class Utf<8> {
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public :
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////////////////////////////////////////////////////////////
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/// \brief Decode a single UTF-8 character
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///
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/// Decoding a character means finding its unique 32-bits
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/// code (called the codepoint) in the Unicode standard.
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Codepoint of the decoded UTF-8 character
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/// \param replacement Replacement character to use in case the UTF-8 sequence is invalid
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///
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/// \return Iterator pointing to one past the last read element of the input sequence
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///
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////////////////////////////////////////////////////////////
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template <typename In>
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static In Decode(In begin, In end, Uint32& output, Uint32 replacement = 0);
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////////////////////////////////////////////////////////////
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/// \brief Encode a single UTF-8 character
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///
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/// Encoding a character means converting a unique 32-bits
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/// code (called the codepoint) in the target encoding, UTF-8.
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///
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/// \param input Codepoint to encode as UTF-8
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/// \param output Iterator pointing to the beginning of the output sequence
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/// \param replacement Replacement for characters not convertible to UTF-8 (use 0 to skip them)
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename Out>
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static Out Encode(Uint32 input, Out output, Uint8 replacement = 0);
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////////////////////////////////////////////////////////////
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/// \brief Advance to the next UTF-8 character
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///
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/// This function is necessary for multi-elements encodings, as
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/// a single character may use more than 1 storage element.
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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///
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/// \return Iterator pointing to one past the last read element of the input sequence
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///
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////////////////////////////////////////////////////////////
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template <typename In>
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static In Next(In begin, In end);
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////////////////////////////////////////////////////////////
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/// \brief Count the number of characters of a UTF-8 sequence
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///
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/// This function is necessary for multi-elements encodings, as
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/// a single character may use more than 1 storage element, thus the
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/// total size can be different from (begin - end).
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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///
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/// \return Iterator pointing to one past the last read element of the input sequence
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///
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////////////////////////////////////////////////////////////
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template <typename In>
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static std::size_t Count(In begin, In end);
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////////////////////////////////////////////////////////////
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/// \brief Convert an ANSI characters range to UTF-8
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///
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/// The current global locale will be used by default, unless you
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/// pass a custom one in the \a locale parameter.
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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/// \param locale Locale to use for conversion
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out FromAnsi(In begin, In end, Out output, const std::locale& locale = std::locale());
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////////////////////////////////////////////////////////////
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/// \brief Convert a wide characters range to UTF-8
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out FromWide(In begin, In end, Out output);
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////////////////////////////////////////////////////////////
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/// \brief Convert a latin-1 (ISO-5589-1) characters range to UTF-8
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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/// \param locale Locale to use for conversion
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out FromLatin1(In begin, In end, Out output);
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////////////////////////////////////////////////////////////
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/// \brief Convert an UTF-8 characters range to ANSI characters
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///
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/// The current global locale will be used by default, unless you
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/// pass a custom one in the \a locale parameter.
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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/// \param replacement Replacement for characters not convertible to ANSI (use 0 to skip them)
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/// \param locale Locale to use for conversion
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToAnsi(In begin, In end, Out output, char replacement = 0, const std::locale& locale = std::locale());
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#ifndef EFSW_NO_WIDECHAR
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////////////////////////////////////////////////////////////
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/// \brief Convert an UTF-8 characters range to wide characters
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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/// \param replacement Replacement for characters not convertible to wide (use 0 to skip them)
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToWide(In begin, In end, Out output, wchar_t replacement = 0);
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#endif
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////////////////////////////////////////////////////////////
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/// \brief Convert an UTF-8 characters range to latin-1 (ISO-5589-1) characters
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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/// \param replacement Replacement for characters not convertible to wide (use 0 to skip them)
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToLatin1(In begin, In end, Out output, char replacement = 0);
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////////////////////////////////////////////////////////////
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/// \brief Convert a UTF-8 characters range to UTF-8
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///
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/// This functions does nothing more than a direct copy;
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/// it is defined only to provide the same interface as other
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/// specializations of the efsw::Utf<> template, and allow
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/// generic code to be written on top of it.
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out toUtf8(In begin, In end, Out output);
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////////////////////////////////////////////////////////////
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/// \brief Convert a UTF-8 characters range to UTF-16
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToUtf16(In begin, In end, Out output);
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////////////////////////////////////////////////////////////
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/// \brief Convert a UTF-8 characters range to UTF-32
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToUtf32(In begin, In end, Out output);
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};
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////////////////////////////////////////////////////////////
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/// \brief Specialization of the Utf template for UTF-16
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///
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////////////////////////////////////////////////////////////
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template <>
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class Utf<16>
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{
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public :
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////////////////////////////////////////////////////////////
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/// \brief Decode a single UTF-16 character
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///
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/// Decoding a character means finding its unique 32-bits
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/// code (called the codepoint) in the Unicode standard.
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Codepoint of the decoded UTF-16 character
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/// \param replacement Replacement character to use in case the UTF-8 sequence is invalid
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///
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/// \return Iterator pointing to one past the last read element of the input sequence
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///
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////////////////////////////////////////////////////////////
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template <typename In>
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static In Decode(In begin, In end, Uint32& output, Uint32 replacement = 0);
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////////////////////////////////////////////////////////////
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/// \brief Encode a single UTF-16 character
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///
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/// Encoding a character means converting a unique 32-bits
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/// code (called the codepoint) in the target encoding, UTF-16.
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///
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/// \param input Codepoint to encode as UTF-16
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/// \param output Iterator pointing to the beginning of the output sequence
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/// \param replacement Replacement for characters not convertible to UTF-16 (use 0 to skip them)
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename Out>
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static Out Encode(Uint32 input, Out output, Uint16 replacement = 0);
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////////////////////////////////////////////////////////////
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/// \brief Advance to the next UTF-16 character
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///
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/// This function is necessary for multi-elements encodings, as
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/// a single character may use more than 1 storage element.
|
///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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///
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/// \return Iterator pointing to one past the last read element of the input sequence
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///
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////////////////////////////////////////////////////////////
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template <typename In>
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static In Next(In begin, In end);
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////////////////////////////////////////////////////////////
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/// \brief Count the number of characters of a UTF-16 sequence
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///
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/// This function is necessary for multi-elements encodings, as
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/// a single character may use more than 1 storage element, thus the
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/// total size can be different from (begin - end).
|
///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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///
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/// \return Iterator pointing to one past the last read element of the input sequence
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///
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////////////////////////////////////////////////////////////
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template <typename In>
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static std::size_t Count(In begin, In end);
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////////////////////////////////////////////////////////////
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/// \brief Convert an ANSI characters range to UTF-16
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///
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/// The current global locale will be used by default, unless you
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/// pass a custom one in the \a locale parameter.
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param locale Locale to use for conversion
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out FromAnsi(In begin, In end, Out output, const std::locale& locale = std::locale());
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////////////////////////////////////////////////////////////
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/// \brief Convert a wide characters range to UTF-16
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///
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/// \param begin Iterator pointing to the beginning of the input sequence
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/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out FromWide(In begin, In end, Out output);
|
|
////////////////////////////////////////////////////////////
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/// \brief Convert a latin-1 (ISO-5589-1) characters range to UTF-16
|
///
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/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param locale Locale to use for conversion
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out FromLatin1(In begin, In end, Out output);
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|
////////////////////////////////////////////////////////////
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/// \brief Convert an UTF-16 characters range to ANSI characters
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///
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/// The current global locale will be used by default, unless you
|
/// pass a custom one in the \a locale parameter.
|
///
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/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
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/// \param output Iterator pointing to the beginning of the output sequence
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/// \param replacement Replacement for characters not convertible to ANSI (use 0 to skip them)
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/// \param locale Locale to use for conversion
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///
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/// \return Iterator to the end of the output sequence which has been written
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///
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////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToAnsi(In begin, In end, Out output, char replacement = 0, const std::locale& locale = std::locale());
|
|
#ifndef EFSW_NO_WIDECHAR
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////////////////////////////////////////////////////////////
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/// \brief Convert an UTF-16 characters range to wide characters
|
///
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/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param replacement Replacement for characters not convertible to wide (use 0 to skip them)
|
///
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/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToWide(In begin, In end, Out output, wchar_t replacement = 0);
|
#endif
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert an UTF-16 characters range to latin-1 (ISO-5589-1) characters
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param replacement Replacement for characters not convertible to wide (use 0 to skip them)
|
///
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/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
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static Out ToLatin1(In begin, In end, Out output, char replacement = 0);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert a UTF-16 characters range to UTF-8
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
///
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/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out toUtf8(In begin, In end, Out output);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert a UTF-16 characters range to UTF-16
|
///
|
/// This functions does nothing more than a direct copy;
|
/// it is defined only to provide the same interface as other
|
/// specializations of the efsw::Utf<> template, and allow
|
/// generic code to be written on top of it.
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToUtf16(In begin, In end, Out output);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert a UTF-16 characters range to UTF-32
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
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template <typename In, typename Out>
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static Out ToUtf32(In begin, In end, Out output);
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};
|
|
////////////////////////////////////////////////////////////
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/// \brief Specialization of the Utf template for UTF-32
|
///
|
////////////////////////////////////////////////////////////
|
template <>
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class Utf<32>
|
{
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public :
|
|
////////////////////////////////////////////////////////////
|
/// \brief Decode a single UTF-32 character
|
///
|
/// Decoding a character means finding its unique 32-bits
|
/// code (called the codepoint) in the Unicode standard.
|
/// For UTF-32, the character value is the same as the codepoint.
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Codepoint of the decoded UTF-32 character
|
/// \param replacement Replacement character to use in case the UTF-8 sequence is invalid
|
///
|
/// \return Iterator pointing to one past the last read element of the input sequence
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In>
|
static In Decode(In begin, In end, Uint32& output, Uint32 replacement = 0);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Encode a single UTF-32 character
|
///
|
/// Encoding a character means converting a unique 32-bits
|
/// code (called the codepoint) in the target encoding, UTF-32.
|
/// For UTF-32, the codepoint is the same as the character value.
|
///
|
/// \param input Codepoint to encode as UTF-32
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param replacement Replacement for characters not convertible to UTF-32 (use 0 to skip them)
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename Out>
|
static Out Encode(Uint32 input, Out output, Uint32 replacement = 0);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Advance to the next UTF-32 character
|
///
|
/// This function is trivial for UTF-32, which can store
|
/// every character in a single storage element.
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
///
|
/// \return Iterator pointing to one past the last read element of the input sequence
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In>
|
static In Next(In begin, In end);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Count the number of characters of a UTF-32 sequence
|
///
|
/// This function is trivial for UTF-32, which can store
|
/// every character in a single storage element.
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
///
|
/// \return Iterator pointing to one past the last read element of the input sequence
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In>
|
static std::size_t Count(In begin, In end);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert an ANSI characters range to UTF-32
|
///
|
/// The current global locale will be used by default, unless you
|
/// pass a custom one in the \a locale parameter.
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param locale Locale to use for conversion
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out FromAnsi(In begin, In end, Out output, const std::locale& locale = std::locale());
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert a wide characters range to UTF-32
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out FromWide(In begin, In end, Out output);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert a latin-1 (ISO-5589-1) characters range to UTF-32
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param locale Locale to use for conversion
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out FromLatin1(In begin, In end, Out output);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert an UTF-32 characters range to ANSI characters
|
///
|
/// The current global locale will be used by default, unless you
|
/// pass a custom one in the \a locale parameter.
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param replacement Replacement for characters not convertible to ANSI (use 0 to skip them)
|
/// \param locale Locale to use for conversion
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out ToAnsi(In begin, In end, Out output, char replacement = 0, const std::locale& locale = std::locale());
|
|
#ifndef EFSW_NO_WIDECHAR
|
////////////////////////////////////////////////////////////
|
/// \brief Convert an UTF-32 characters range to wide characters
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param replacement Replacement for characters not convertible to wide (use 0 to skip them)
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out ToWide(In begin, In end, Out output, wchar_t replacement = 0);
|
#endif
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert an UTF-16 characters range to latin-1 (ISO-5589-1) characters
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param replacement Replacement for characters not convertible to wide (use 0 to skip them)
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out ToLatin1(In begin, In end, Out output, char replacement = 0);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert a UTF-32 characters range to UTF-8
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out toUtf8(In begin, In end, Out output);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert a UTF-32 characters range to UTF-16
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out ToUtf16(In begin, In end, Out output);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Convert a UTF-32 characters range to UTF-32
|
///
|
/// This functions does nothing more than a direct copy;
|
/// it is defined only to provide the same interface as other
|
/// specializations of the efsw::Utf<> template, and allow
|
/// generic code to be written on top of it.
|
///
|
/// \param begin Iterator pointing to the beginning of the input sequence
|
/// \param end Iterator pointing to the end of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In, typename Out>
|
static Out ToUtf32(In begin, In end, Out output);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Decode a single ANSI character to UTF-32
|
///
|
/// This function does not exist in other specializations
|
/// of efsw::Utf<>, it is defined for convenience (it is used by
|
/// several other conversion functions).
|
///
|
/// \param input Input ANSI character
|
/// \param locale Locale to use for conversion
|
///
|
/// \return Converted character
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In>
|
static Uint32 DecodeAnsi(In input, const std::locale& locale = std::locale());
|
|
////////////////////////////////////////////////////////////
|
/// \brief Decode a single wide character to UTF-32
|
///
|
/// This function does not exist in other specializations
|
/// of efsw::Utf<>, it is defined for convenience (it is used by
|
/// several other conversion functions).
|
///
|
/// \param input Input wide character
|
///
|
/// \return Converted character
|
///
|
////////////////////////////////////////////////////////////
|
template <typename In>
|
static Uint32 DecodeWide(In input);
|
|
////////////////////////////////////////////////////////////
|
/// \brief Encode a single UTF-32 character to ANSI
|
///
|
/// This function does not exist in other specializations
|
/// of efsw::Utf<>, it is defined for convenience (it is used by
|
/// several other conversion functions).
|
///
|
/// \param codepoint Iterator pointing to the beginning of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param replacement Replacement if the input character is not convertible to ANSI (use 0 to skip it)
|
/// \param locale Locale to use for conversion
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename Out>
|
static Out EncodeAnsi(Uint32 codepoint, Out output, char replacement = 0, const std::locale& locale = std::locale());
|
|
#ifndef EFSW_NO_WIDECHAR
|
////////////////////////////////////////////////////////////
|
/// \brief Encode a single UTF-32 character to wide
|
///
|
/// This function does not exist in other specializations
|
/// of efsw::Utf<>, it is defined for convenience (it is used by
|
/// several other conversion functions).
|
///
|
/// \param codepoint Iterator pointing to the beginning of the input sequence
|
/// \param output Iterator pointing to the beginning of the output sequence
|
/// \param replacement Replacement if the input character is not convertible to wide (use 0 to skip it)
|
///
|
/// \return Iterator to the end of the output sequence which has been written
|
///
|
////////////////////////////////////////////////////////////
|
template <typename Out>
|
static Out EncodeWide(Uint32 codepoint, Out output, wchar_t replacement = 0);
|
#endif
|
};
|
|
#include "Utf.inl"
|
|
// Make typedefs to get rid of the template syntax
|
typedef Utf<8> Utf8;
|
typedef Utf<16> Utf16;
|
typedef Utf<32> Utf32;
|
|
}
|
#endif
|
|
////////////////////////////////////////////////////////////
|
/// \class efsw::Utf
|
/// \ingroup system
|
///
|
/// Utility class providing generic functions for UTF conversions.
|
///
|
/// efsw::Utf is a low-level, generic interface for counting, iterating,
|
/// encoding and decoding Unicode characters and strings. It is able
|
/// to handle ANSI, wide, UTF-8, UTF-16 and UTF-32 encodings.
|
///
|
/// efsw::Utf<X> functions are all static, these classes are not meant to
|
/// be instanciated. All the functions are template, so that you
|
/// can use any character / string type for a given encoding.
|
///
|
/// It has 3 specializations:
|
/// \li efsw::Utf<8> (typedef'd to efsw::Utf8)
|
/// \li efsw::Utf<16> (typedef'd to efsw::Utf16)
|
/// \li efsw::Utf<32> (typedef'd to efsw::Utf32)
|
///
|
////////////////////////////////////////////////////////////
|
