mirror of
https://github.com/xiaoyifang/goldendict-ng.git
synced 2024-11-24 08:34:08 +00:00
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
|
|
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
|
|
|
|
#ifndef __ICONV_HH_INCLUDED__
|
|
#define __ICONV_HH_INCLUDED__
|
|
|
|
#include <iconv.h>
|
|
#include "wstring.hh"
|
|
#include "ex.hh"
|
|
|
|
/// A wrapper for the iconv() character set conversion functions
|
|
class Iconv
|
|
{
|
|
iconv_t state;
|
|
|
|
public:
|
|
|
|
DEF_EX( Ex, "Iconv exception", std::exception )
|
|
DEF_EX_STR( exCantInit, "Can't initialize iconv conversion:", Ex )
|
|
DEF_EX( exIncorrectSeq, "Invalid character sequence encountered during character convesion", Ex )
|
|
DEF_EX( exPrematureEnd, "Character sequence ended prematurely during character conversion", Ex )
|
|
DEF_EX_STR( exOther, "An error has occured during character conversion:", Ex )
|
|
|
|
// Some predefined character sets' names
|
|
|
|
static char const * const GdWchar;
|
|
static char const * const Utf16Le;
|
|
static char const * const Utf8;
|
|
|
|
Iconv( char const * to, char const * from ) throw( exCantInit );
|
|
|
|
// Changes to another pair of encodings. All the internal state is reset.
|
|
void reinit( char const * to, char const * from ) throw( exCantInit );
|
|
|
|
~Iconv() throw();
|
|
|
|
enum Result
|
|
{
|
|
Success, // All the data was successfully converted
|
|
NeedMoreIn, // Input has an incomplete multibyte character at its end
|
|
NeedMoreOut // The output buffer can't hold the result
|
|
};
|
|
|
|
Result convert( void const * & inBuf, size_t & inBytesLeft,
|
|
void * & outBuf, size_t & outBytesLeft ) throw( exIncorrectSeq,
|
|
exOther );
|
|
|
|
// Converts a given block of data from the given encoding to a wide string.
|
|
static gd::wstring toWstring( char const * fromEncoding, void const * fromData,
|
|
size_t dataSize )
|
|
throw( exCantInit, exIncorrectSeq, exPrematureEnd, exOther );
|
|
|
|
// Converts a given block of data from the given encoding to an utf8-encoded
|
|
// string.
|
|
static std::string toUtf8( char const * fromEncoding, void const * fromData,
|
|
size_t dataSize )
|
|
throw( exCantInit, exIncorrectSeq, exPrematureEnd, exOther );
|
|
|
|
private:
|
|
|
|
// Copying/assigning not supported
|
|
Iconv( Iconv const & );
|
|
Iconv & operator = ( Iconv const & );
|
|
};
|
|
|
|
#endif
|
|
|