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68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
/* This file is (c) 2008-2010 Konstantin Isakov <ikm@users.berlios.de>
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* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
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#ifndef __ICONV_HH_INCLUDED__
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#define __ICONV_HH_INCLUDED__
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#include <iconv.h>
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#include "wstring.hh"
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#include "ex.hh"
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/// A wrapper for the iconv() character set conversion functions
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class Iconv
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{
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iconv_t state;
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public:
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DEF_EX( Ex, "Iconv exception", std::exception )
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DEF_EX_STR( exCantInit, "Can't initialize iconv conversion:", Ex )
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DEF_EX( exIncorrectSeq, "Invalid character sequence encountered during character convesion", Ex )
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DEF_EX( exPrematureEnd, "Character sequence ended prematurely during character conversion", Ex )
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DEF_EX_STR( exOther, "An error has occured during character conversion:", Ex )
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// Some predefined character sets' names
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static char const * const GdWchar;
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static char const * const Utf16Le;
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static char const * const Utf8;
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Iconv( char const * to, char const * from ) throw( exCantInit );
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// Changes to another pair of encodings. All the internal state is reset.
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void reinit( char const * to, char const * from ) throw( exCantInit );
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~Iconv() throw();
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enum Result
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{
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Success, // All the data was successfully converted
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NeedMoreIn, // Input has an incomplete multibyte character at its end
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NeedMoreOut // The output buffer can't hold the result
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};
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Result convert( void const * & inBuf, size_t & inBytesLeft,
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void * & outBuf, size_t & outBytesLeft ) throw( exIncorrectSeq,
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exOther );
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// Converts a given block of data from the given encoding to a wide string.
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static gd::wstring toWstring( char const * fromEncoding, void const * fromData,
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size_t dataSize )
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throw( exCantInit, exIncorrectSeq, exPrematureEnd, exOther );
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// Converts a given block of data from the given encoding to an utf8-encoded
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// string.
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static std::string toUtf8( char const * fromEncoding, void const * fromData,
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size_t dataSize )
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throw( exCantInit, exIncorrectSeq, exPrematureEnd, exOther );
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private:
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// Copying/assigning not supported
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Iconv( Iconv const & );
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Iconv & operator = ( Iconv const & );
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};
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#endif
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