Sweden-Number/include/wine/unicode.h

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/*
* Wine internal Unicode definitions
*
* Copyright 2000 Alexandre Julliard
*/
#ifndef __WINE_UNICODE_H
#define __WINE_UNICODE_H
#include "windef.h"
/* code page info common to SBCS and DBCS */
struct cp_info
{
unsigned int codepage; /* codepage id */
unsigned int char_size; /* char size (1 or 2 bytes) */
WCHAR def_char; /* default char value (can be double-byte) */
WCHAR def_unicode_char; /* default Unicode char value */
const char *name; /* code page name */
};
struct sbcs_table
{
struct cp_info info;
const WCHAR *cp2uni; /* code page -> Unicode map */
const unsigned char *uni2cp_low; /* Unicode -> code page map */
const unsigned short *uni2cp_high;
};
struct dbcs_table
{
struct cp_info info;
const WCHAR *cp2uni; /* code page -> Unicode map */
const unsigned char *cp2uni_leadbytes;
const unsigned short *uni2cp_low; /* Unicode -> code page map */
const unsigned short *uni2cp_high;
unsigned char lead_bytes[12]; /* lead bytes ranges */
};
union cptable
{
struct cp_info info;
struct sbcs_table sbcs;
struct dbcs_table dbcs;
};
extern const union cptable *cp_get_table( unsigned int codepage );
extern const union cptable *cp_enum_table( unsigned int index );
extern int cp_mbstowcs( const union cptable *table, int flags,
const char *src, int srclen,
WCHAR *dst, int dstlen );
extern int cp_wcstombs( const union cptable *table, int flags,
const WCHAR *src, int srclen,
char *dst, int dstlen, const char *defchar, int *used );
static inline int is_dbcs_leadbyte( const union cptable *table, unsigned char ch )
{
return (table->info.char_size == 2) && (table->dbcs.cp2uni_leadbytes[ch]);
}
static inline WCHAR tolowerW( WCHAR ch )
{
extern WCHAR casemap_lower[];
return ch + casemap_lower[casemap_lower[ch >> 8] + (ch & 0xff)];
}
static inline WCHAR toupperW( WCHAR ch )
{
extern WCHAR casemap_upper[];
return ch + casemap_upper[casemap_upper[ch >> 8] + (ch & 0xff)];
}
/* some useful string manipulation routines */
static inline unsigned int strlenW( const WCHAR *str )
{
#if defined(__i386__) && defined(__GNUC__)
int dummy, res;
__asm__( "cld\n\t"
"repne\n\t"
"scasw\n\t"
"notl %0"
: "=c" (res), "=&D" (dummy)
: "0" (0xffffffff), "1" (str), "a" (0) );
return res - 1;
#else
const WCHAR *s = str;
while (*s) s++;
return s - str;
#endif
}
static inline WCHAR *strcpyW( WCHAR *dst, const WCHAR *src )
{
#if defined(__i386__) && defined(__GNUC__)
int dummy1, dummy2, dummy3;
__asm__ __volatile__( "cld\n"
"1:\tlodsw\n\t"
"stosw\n\t"
"testw %%ax,%%ax\n\t"
"jne 1b"
: "=&S" (dummy1), "=&D" (dummy2), "=&a" (dummy3)
: "0" (src), "1" (dst)
: "memory" );
#else
WCHAR *p = dst;
while ((*p++ = *src++));
#endif
return dst;
}
static inline int strcmpW( const WCHAR *str1, const WCHAR *str2 )
{
while (*str1 && (*str1 == *str2)) { str1++; str2++; }
return *str1 - *str2;
}
static inline int strncmpW( const WCHAR *str1, const WCHAR *str2, int n )
{
if (n <= 0) return 0;
while ((--n > 0) && *str1 && (*str1 == *str2)) { str1++; str2++; }
return *str1 - *str2;
}
static inline WCHAR *strcatW( WCHAR *dst, const WCHAR *src )
{
strcpyW( dst + strlenW(dst), src );
return dst;
}
static inline WCHAR *strchrW( const WCHAR *str, WCHAR ch )
{
for ( ; *str; str++) if (*str == ch) return (WCHAR *)str;
return NULL;
}
static inline WCHAR *strrchrW( const WCHAR *str, WCHAR ch )
{
WCHAR *ret = NULL;
for ( ; *str; str++) if (*str == ch) ret = (WCHAR *)str;
return ret;
}
static inline WCHAR *strlwrW( WCHAR *str )
{
WCHAR *ret = str;
while ((*str = tolowerW(*str))) str++;
return ret;
}
static inline WCHAR *struprW( WCHAR *str )
{
WCHAR *ret = str;
while ((*str = toupperW(*str))) str++;
return ret;
}
extern int strcmpiW( const WCHAR *str1, const WCHAR *str2 );
extern int strncmpiW( const WCHAR *str1, const WCHAR *str2, int n );
extern WCHAR *strstrW( const WCHAR *str, const WCHAR *sub );
#endif /* __WINE_UNICODE_H */