libs/wine/unicode.h

   1 /*
   2  * Wine internal Unicode definitions
   3  *
   4  * Copyright 2000 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_UNICODE_H
  22 #define __WINE_UNICODE_H
  23
  24 #include <stdarg.h>
  25
  26 #include <windef.h>
  27 #include <winbase.h>
  28 #include <winnls.h>
  29
  30 /* code page info common to SBCS and DBCS */
  31 struct cp_info
  32 {
  33     unsigned int          codepage;          /* codepage id */
  34     unsigned int          char_size;         /* char size (1 or 2 bytes) */
  35     WCHAR                 def_char;          /* default char value (can be double-byte) */
  36     WCHAR                 def_unicode_char;  /* default Unicode char value */
  37     const char           *name;              /* code page name */
  38 };
  39
  40 struct sbcs_table
  41 {
  42     struct cp_info        info;
  43     const WCHAR          *cp2uni;            /* code page -> Unicode map */
  44     const WCHAR          *cp2uni_glyphs;     /* code page -> Unicode map with glyph chars */
  45     const unsigned char  *uni2cp_low;        /* Unicode -> code page map */
  46     const unsigned short *uni2cp_high;
  47 };
  48
  49 struct dbcs_table
  50 {
  51     struct cp_info        info;
  52     const WCHAR          *cp2uni;            /* code page -> Unicode map */
  53     const unsigned char  *cp2uni_leadbytes;
  54     const unsigned short *uni2cp_low;        /* Unicode -> code page map */
  55     const unsigned short *uni2cp_high;
  56     unsigned char         lead_bytes[12];    /* lead bytes ranges */
  57 };
  58
  59 union cptable
  60 {
  61     struct cp_info    info;
  62     struct sbcs_table sbcs;
  63     struct dbcs_table dbcs;
  64 };
  65
  66 static inline unsigned int strlenW( const WCHAR *str )
  67 {
  68     const WCHAR *s = str;
  69     while (*s) s++;
  70     return s - str;
  71 }
  72
  73 static inline unsigned short get_char_typeW( WCHAR ch )
  74 {
  75     extern const unsigned short wine_wctype_table[];
  76     return wine_wctype_table[wine_wctype_table[ch >> 8] + (ch & 0xff)];
  77 }
  78
  79 static inline WCHAR tolowerW( WCHAR ch )
  80 {
  81     extern const WCHAR wine_casemap_lower[];
  82     return ch + wine_casemap_lower[wine_casemap_lower[ch >> 8] + (ch & 0xff)];
  83 }
  84
  85 #endif  /* __WINE_UNICODE_H */