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9160d824d8
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21853 a592a061-630c-0410-9148-cb99ea01b6c8
95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
/**
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* \file unicode.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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*
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* Full author contact details are available in file CREDITS.
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*
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* A collection of unicode conversion functions, using iconv.
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*/
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#ifndef LYX_SUPPORT_UNICODE_H
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#define LYX_SUPPORT_UNICODE_H
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#include "support/strfwd.h"
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#include <vector>
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namespace lyx {
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class IconvProcessor
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{
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public:
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IconvProcessor(char const * tocode = "", char const * fromcode = "");
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/// copy constructor needed because of pimpl_
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IconvProcessor(IconvProcessor const &);
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/// assignment operator needed because of pimpl_
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void operator=(IconvProcessor const &);
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/// destructor
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~IconvProcessor();
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/// convert any data from \c fromcode to \c tocode unicode format.
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/// \return the number of bytes of the converted output buffer.
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int convert(char const * in_buffer, size_t in_size,
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char * out_buffer, size_t max_out_size);
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private:
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/// open iconv.
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/// \return true if the processor is ready to use.
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bool init();
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/// hide internals
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struct Impl;
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Impl * pimpl_;
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};
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// A single codepoint conversion for utf8_to_ucs4 does not make
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// sense, so that function is left out.
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std::vector<char_type> utf8_to_ucs4(std::vector<char> const & utf8str);
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std::vector<char_type> utf8_to_ucs4(char const * utf8str, size_t ls);
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// utf16_to_ucs4
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std::vector<char_type> utf16_to_ucs4(unsigned short const * s, size_t ls);
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// ucs4_to_utf16
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std::vector<unsigned short> ucs4_to_utf16(char_type const * s, size_t ls);
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// ucs4_to_utf8
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std::vector<char> ucs4_to_utf8(char_type c);
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std::vector<char> ucs4_to_utf8(std::vector<char_type> const & ucs4str);
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std::vector<char> ucs4_to_utf8(char_type const * ucs4str, size_t ls);
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/// convert \p s from encoding \p encoding to ucs4.
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/// \p encoding must be a valid iconv 8bit encoding
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std::vector<char_type>
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eightbit_to_ucs4(char const * s, size_t ls, std::string const & encoding);
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/// convert \p s from ucs4 to encoding \p encoding.
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/// \p encoding must be a valid iconv 8bit encoding
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std::vector<char> ucs4_to_eightbit(char_type const * ucs4str,
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size_t ls, std::string const & encoding);
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/// convert ucs4 character \p c to encoding \p encoding.
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/// \p encoding must be a valid iconv 8bit encoding
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char ucs4_to_eightbit(char_type c, std::string const & encoding);
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///
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void ucs4_to_multibytes(char_type ucs4, std::vector<char> & out,
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std::string const & encoding);
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extern char const * ucs4_codeset;
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} // namespace lyx
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#endif
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