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xash3d-fwgs/public/utflib.h

45 lines
1.3 KiB
C

/*
utflib.h - small unicode conversion library
Copyright (C) 2024 Alibek Omarov
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#ifndef UTFLIB_H
#define UTFLIB_H
#include STDINT_H
#include <stddef.h>
typedef struct utfstate_s
{
uint32_t uc;
uint8_t len;
uint8_t k;
} utfstate_t;
// feed utf8 characters one by one
// if it returns 0, feed more
// utfstate_t must be zero initialized
uint32_t Q_DecodeUTF8( utfstate_t *s, uint32_t ch );
uint32_t Q_DecodeUTF16( utfstate_t *s, uint32_t ch );
size_t Q_EncodeUTF8( char dst[4], uint32_t ch );
size_t Q_UTF8Length( const char *s );
// srcsize in byte pairs
size_t Q_UTF16ToUTF8( char *dst, size_t dstsize, const uint16_t *src, size_t srcsize );
// function to convert Unicode codepoints into CP1251 or CP1252
uint32_t Q_UnicodeToCP1251( uint32_t uc );
uint32_t Q_UnicodeToCP1252( uint32_t uc );
#endif // UTFLIB_H