mirror of
https://github.com/DrBeef/QVR.git
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68 lines
2.9 KiB
C
68 lines
2.9 KiB
C
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/*
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* UTF-8 utility functions for DarkPlaces
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*/
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#ifndef UTF8LIB_H__
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#define UTF8LIB_H__
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#include "qtypes.h"
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// types for unicode strings
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// let them be 32 bit for now
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// normally, whcar_t is 16 or 32 bit, 16 on linux I think, 32 on haiku and maybe windows
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#ifdef _MSC_VER
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typedef __int32 U_int32;
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#else
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#include <stdint.h>
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#include <sys/types.h>
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typedef int32_t U_int32;
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#endif
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// Uchar, a wide character
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typedef U_int32 Uchar;
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// Initialize UTF8, this registers cvars which allows for UTF8 to be disabled
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// completely.
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// When UTF8 is disabled, every u8_ function will work exactly as you'd expect
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// a non-utf8 version to work: u8_strlen() will wrap to strlen()
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// u8_byteofs() and u8_charidx() will simply return whatever is passed as index parameter
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// u8_getchar() will will just return the next byte, u8_fromchar will write one byte, ...
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extern cvar_t utf8_enable;
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void u8_Init(void);
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size_t u8_strlen(const char*);
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size_t u8_strnlen(const char*, size_t);
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int u8_byteofs(const char*, size_t, size_t*);
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int u8_charidx(const char*, size_t, size_t*);
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size_t u8_bytelen(const char*, size_t);
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size_t u8_prevbyte(const char*, size_t);
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Uchar u8_getchar_utf8_enabled(const char*, const char**);
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Uchar u8_getnchar_utf8_enabled(const char*, const char**, size_t);
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int u8_fromchar(Uchar, char*, size_t);
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size_t u8_mbstowcs(Uchar *, const char *, size_t);
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size_t u8_wcstombs(char*, const Uchar*, size_t);
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size_t u8_COM_StringLengthNoColors(const char *s, size_t size_s, qboolean *valid);
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// returns a static buffer, use this for inlining
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char *u8_encodech(Uchar ch, size_t*, char*buf16);
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size_t u8_strpad(char *out, size_t outsize, const char *in, qboolean leftalign, size_t minwidth, size_t maxwidth);
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size_t u8_strpad_colorcodes(char *out, size_t outsize, const char *in, qboolean leftalign, size_t minwidth, size_t maxwidth);
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/* Careful: if we disable utf8 but not freetype, we wish to see freetype chars
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* for normal letters. So use E000+x for special chars, but leave the freetype stuff for the
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* rest:
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*/
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extern Uchar u8_quake2utf8map[256];
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// these defines get a bit tricky, as c and e may be aliased to the same variable
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#define u8_getchar(c,e) (utf8_enable.integer ? u8_getchar_utf8_enabled(c,e) : (u8_quake2utf8map[(unsigned char)(*(e) = (c) + 1)[-1]]))
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#define u8_getchar_noendptr(c) (utf8_enable.integer ? u8_getchar_utf8_enabled(c,NULL) : (u8_quake2utf8map[(unsigned char)*(c)]))
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#define u8_getchar_check(c,e) ((e) ? u8_getchar((c),(e)) : u8_getchar_noendptr((c)))
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#define u8_getnchar(c,e,n) (utf8_enable.integer ? u8_getnchar_utf8_enabled(c,e,n) : ((n) <= 0 ? ((*(e) = c), 0) : (u8_quake2utf8map[(unsigned char)(*(e) = (c) + 1)[-1]])))
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#define u8_getnchar_noendptr(c,n) (utf8_enable.integer ? u8_getnchar_utf8_enabled(c,NULL,n) : ((n) <= 0 ? 0 : (u8_quake2utf8map[(unsigned char)*(c)])))
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#define u8_getnchar_check(c,e,n) ((e) ? u8_getchar((c),(e),(n)) : u8_getchar_noendptr((c),(n)))
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Uchar u8_toupper(Uchar ch);
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Uchar u8_tolower(Uchar ch);
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#endif // UTF8LIB_H__
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