windows-server-2003/base/crts/crtw32/mbstring/mbclevel.c

/*** 
*mbclevel.c - Tests if char is hiragana, katakana, alphabet or digit.
*
*       Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
*       Tests for the various industry defined levels of Microsoft Kanji
*       Code.
*
*Revision History:
*       11-19-92  KRS   Ported from 16-bit sources.
*       09-24-93  CFW   Removed #ifdef _KANJI
*       09-29-93  CFW   Return false if not Kanji code page.
*       10-05-93  GJF   Replace _CRTAPI1 with __cdecl.
*       07-26-94  CFW   Bug fix #14685, add 0xEA9F-0xEAA4 to JIS-Kanji level 2.
*       04-24-98  GJF   Implemented multithread support based on threadmbcinfo
*                       structs
*
*******************************************************************************/

#ifdef  _MBCS

#include <cruntime.h>
#include <mbdata.h>
#include <mbstring.h>
#include <mbctype.h>
#include <mtdll.h>


/***
*int _ismbcl0(c) - Tests if char is hiragana, katakana, alphabet or digit.
*
*Purpose:
*       Tests if a given char is hiragana, katakana, alphabet, digit or symbol
*       of Microsoft Kanji code.
*
*Entry:
*       unsigned int c - Character to test.
*
*Exit:
*       Returns non-zero if 0x8140 <= c <= 0x889E, else 0.
*
*Exceptions:
*
*******************************************************************************/

int __cdecl _ismbcl0(
        unsigned int c
        )
{
#ifdef  _MT
        pthreadmbcinfo ptmbci = _getptd()->ptmbcinfo;

        if ( ptmbci != __ptmbcinfo )
            ptmbci = __updatetmbcinfo();

        return( (ptmbci->mbcodepage == _KANJI_CP) && 
                (__ismbblead_mt(ptmbci, c >> 8)) &&
                (__ismbbtrail_mt(ptmbci, c & 0x0ff)) &&
                (c < 0x889f) );
#else
        return( (__mbcodepage == _KANJI_CP) && (_ismbblead(c >> 8)) &&
                (_ismbbtrail(c & 0x0ff)) && (c < 0x889f) );
#endif
}


/***
*int _ismbcl1(c) - Tests for 1st-level Microsoft Kanji code set.
*
*Purpose:
*       Tests if a given char belongs to Microsoft 1st-level Kanji code set.
*
*Entry:
*       unsigned int c - character to test.
*
*Exit:
*       Returns non-zero if 1st-level, else 0.
*
*Exceptions:
*
*******************************************************************************/

int __cdecl _ismbcl1(
    unsigned int c
    )
{
#ifdef  _MT
        pthreadmbcinfo ptmbci = _getptd()->ptmbcinfo;

        if ( ptmbci != __ptmbcinfo )
            ptmbci = __updatetmbcinfo();

        return( (ptmbci->mbcodepage == _KANJI_CP) && 
                (__ismbblead_mt(ptmbci, c >> 8)) &&
                (__ismbbtrail_mt(ptmbci, c & 0x0ff)) && 
                (c >= 0x889f) && (c <= 0x9872) );
#else
        return( (__mbcodepage == _KANJI_CP) && (_ismbblead(c >> 8)) &&
                (_ismbbtrail(c & 0x0ff)) && (c >= 0x889f) && (c <= 0x9872) );
#endif
}


/***
*int _ismbcl2(c) - Tests for a 2nd-level Microsoft Kanji code character.
*
*Purpose:
*       Tests if a given char belongs to the Microsoft 2nd-level Kanji code set.
*
*Entry:
*       unsigned int c - character to test.
*
*Exit:
*       Returns non-zero if 2nd-level, else 0.
*
*Exceptions:
*
*******************************************************************************/

int __cdecl _ismbcl2(
    unsigned int c
    )
{
#ifdef  _MT
        pthreadmbcinfo ptmbci = _getptd()->ptmbcinfo;

        if ( ptmbci != __ptmbcinfo )
            ptmbci = __updatetmbcinfo();

        return( (ptmbci->mbcodepage == _KANJI_CP) &&
                (__ismbblead_mt(ptmbci, c >> 8)) &&
                (__ismbbtrail_mt(ptmbci, c & 0x0ff)) &&
                (c >= 0x989f) && (c <= 0xEAA4) );
#else
        return( (__mbcodepage == _KANJI_CP) && (_ismbblead(c >> 8)) &&
                (_ismbbtrail(c & 0x0ff)) && (c >= 0x989f) && (c <= 0xEAA4) );
#endif
}

#endif  /* _MBCS */