181 lines
6.0 KiB
C++
181 lines
6.0 KiB
C++
/*
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* This file is a part of PikoTools
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2010-2021, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
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* project may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfile_picotools_utf8_utf8
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#define headerfile_picotools_utf8_utf8
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#include <string>
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#include "textstream/textstream.h"
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namespace pt
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{
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/*!
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UTF-8, a transformation format of ISO 10646
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http://tools.ietf.org/html/rfc3629
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when wchar_t is 4 bytes length we use UTF-32
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when wchar_t is 2 bytes length we use UTF-16 (with surrogate pairs)
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UTF-16
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http://www.ietf.org/rfc/rfc2781.txt
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*/
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/*!
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returns true if 'c' is a correct unicode character
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*/
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bool utf8_check_range(int c);
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/*!
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returns true if 'c' is a correct unicode character
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this method is used when reading from an utf8 string
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how_many_chars - means how many characters from utf8 string were read
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*/
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bool utf8_check_range(int c, int how_many_bytes);
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/*
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*
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*
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*
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* convertions from UTF-8
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*
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*
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*
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*/
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/*!
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converting one character from UTF-8 to an int
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*/
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size_t utf8_to_int(const char * utf8, size_t utf8_len, int & res, bool & correct);
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size_t utf8_to_int(const char * utf8, int & res, bool & correct);
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size_t utf8_to_int(const std::string & utf8, int & res, bool & correct);
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size_t utf8_to_int(std::istream & utf8, int & res, bool & correct);
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/*!
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converting UTF-8 string to a wide string
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*/
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bool utf8_to_wide(const char * utf8, size_t utf8_len, std::wstring & res, bool clear = true, int mode = 1);
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bool utf8_to_wide(const char * utf8, std::wstring & res, bool clear = true, int mode = 1);
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bool utf8_to_wide(const std::string & utf8, std::wstring & res, bool clear = true, int mode = 1);
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bool utf8_to_wide(std::istream & utf8, std::wstring & res, bool clear = true, int mode = 1);
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template<typename StreamType>
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bool utf8_to_wide(const char * utf8, size_t utf8_len, StreamType & res, bool clear = true, int mode = 1); // need to be tested
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template<typename StreamType>
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bool utf8_to_wide(const char * utf8, StreamType & res, bool clear = true, int mode = 1); // need to be tested
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template<typename StreamType>
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bool utf8_to_wide(const std::string & utf8, StreamType & res, bool clear = true, int mode = 1); // need to be tested
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template<typename StreamType>
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bool utf8_to_wide(std::istream & utf8, StreamType & res, bool clear = true, int mode = 1); // need to be tested
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/*
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*
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*
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*
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* convertions to UTF-8
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*
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*
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*
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*/
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/*!
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converting one int character to UTF-8
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*/
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size_t int_to_utf8(int z, char * utf8, size_t utf8_max_len);
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size_t int_to_utf8(int z, std::string & utf8, bool clear = true);
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template<typename StreamType>
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size_t int_to_utf8(int z, StreamType & utf8);
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/*!
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converting a wide string to UTF-8 string
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*/
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bool wide_to_utf8(const wchar_t * wide_string, size_t string_len, std::string & utf8, bool clear = true, int mode = 1);
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bool wide_to_utf8(const wchar_t * wide_string, std::string & utf8, bool clear = true, int mode = 1);
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bool wide_to_utf8(const std::wstring & wide_string, std::string & utf8, bool clear = true, int mode = 1);
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template<typename StreamType>
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bool wide_to_utf8(const wchar_t * wide_string, size_t string_len, StreamType & utf8, int mode = 1);
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template<typename StreamType>
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bool wide_to_utf8(const wchar_t * wide_string, StreamType & utf8, int mode = 1);
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template<typename StreamType>
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bool wide_to_utf8(const std::wstring & wide_string, StreamType & utf8, int mode = 1);
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bool wide_to_utf8(const wchar_t * wide_string, size_t string_len, char * utf8, size_t utf8_len, size_t & utf8_written, int mode = 1);
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bool wide_to_utf8(const wchar_t * wide_string, char * utf8, size_t utf8_len, size_t & utf8_written, int mode = 1);
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bool wide_to_utf8(const std::wstring & wide_string, char * utf8, size_t utf8_len, size_t & utf8_written, int mode = 1);
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bool wide_to_utf8(const wchar_t * wide_string, size_t string_len, char * utf8, size_t utf8_len, int mode = 1);
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bool wide_to_utf8(const wchar_t * wide_string, char * utf8, size_t utf8_len, int mode = 1);
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bool wide_to_utf8(const std::wstring & wide_string, char * utf8, size_t utf8_len, int mode = 1);
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template<typename StreamType>
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void wide_stream_to_utf8(StreamType & buffer, std::string & utf8, bool clear = true, int mode = 1); // not tested
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template<typename StreamTypeIn, typename StreamTypeOut>
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void wide_stream_to_utf8(StreamTypeIn & buffer, StreamTypeOut & utf8, int mode = 1); // not tested
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} // namespace
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#include "utf8/utf8_templates.h"
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#endif
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