/*
 * Wine internal Unicode definitions
 *
 * Copyright 2000 Alexandre Julliard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifndef __WINE_UNICODE_H
#define __WINE_UNICODE_H

#include <stdarg.h>

#include <windef.h>
#include <winbase.h>
#include <winnls.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 WCHAR          *cp2uni_glyphs;     /* code page -> Unicode map with glyph chars */
    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;
};

static inline unsigned int strlenW( const WCHAR *str )
{
    const WCHAR *s = str;
    while (*s) s++;
    return s - str;
}

static inline unsigned short get_char_typeW( WCHAR ch )
{
    extern const unsigned short wine_wctype_table[];
    return wine_wctype_table[wine_wctype_table[ch >> 8] + (ch & 0xff)];
}

static inline WCHAR tolowerW( WCHAR ch )
{
    extern const WCHAR wine_casemap_lower[];
    return ch + wine_casemap_lower[wine_casemap_lower[ch >> 8] + (ch & 0xff)];
}

#endif  /* __WINE_UNICODE_H */