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Synopsis:
    #include <mbstring.h>
    int _ismbcalpha( unsigned int ch );

Description:
    The _ismbcalpha function tests if the multibyte character argument ch is
    an alphabetic character.  For example, in code page 932, 'A' through 'Z'
    or 'a' through 'z' and its corresponding double-byte versions and the
    Katakana letters (0xA6 through 0xDF) are alphabetic.

Returns:
    The _ismbcalpha function returns zero if the argument is not an
    alphabetic character; otherwise, a non-zero value is returned.


Example:
    #include <stdio.h>
    #include <mbctype.h>
    #include <mbstring.h>

    unsigned int chars[] = {
        '.',
        '1',
        'A',
        0x8143, /* double-byte , */
        0x8254, /* double-byte 5 */
        0x8260, /* double-byte A */
        0x8279, /* double-byte Z */
        0x8281, /* double-byte a */
        0x829A, /* double-byte z */
        0x829F, /* double-byte Hiragana */
        0x8340, /* double-byte Katakana */
        0x837F, /* illegal double-byte character */
        0x889E, /* double-byte L0 character */
        0x889F, /* double-byte L1 character */
        0x989F, /* double-byte L2 character */
        0xA6    /* single-byte Katakana */
    };

    #define SIZE sizeof( chars ) / sizeof( unsigned int )

    void main()
      {
        int   i;

        _setmbcp( 932 );
        for( i = 0; i < SIZE; i++ ) {
          printf( "%#6.4x is %sa valid "
                "multibyte alphabetic character\n",
                chars[i],
                ( _ismbcalpha( chars[i] ) ) ? "" : "not " );
        }
      }

    produces the following:

    0x002e is not a valid multibyte alphabetic character
    0x0031 is not a valid multibyte alphabetic character
    0x0041 is a valid multibyte alphabetic character
    0x8143 is not a valid multibyte alphabetic character
    0x8254 is not a valid multibyte alphabetic character
    0x8260 is a valid multibyte alphabetic character
    0x8279 is a valid multibyte alphabetic character
    0x8281 is a valid multibyte alphabetic character
    0x829a is a valid multibyte alphabetic character
    0x829f is a valid multibyte alphabetic character
    0x8340 is a valid multibyte alphabetic character
    0x837f is not a valid multibyte alphabetic character
    0x889e is not a valid multibyte alphabetic character
    0x889f is a valid multibyte alphabetic character
    0x989f is a valid multibyte alphabetic character
    0x00a6 is a valid multibyte alphabetic character

Classification:
    WATCOM

Systems:
    DOS, Windows, Win386, Win32, OS/2 1.x(all), OS/2-32

See Also:
    _getmbcp, _ismbcalnum, _ismbccntrl, _ismbcdigit, _ismbcgraph,
    _ismbchira, _ismbckata, _ismbcl0, _ismbcl1, _ismbcl2, _ismbclegal,
    _ismbclower, _ismbcprint, _ismbcpunct, _ismbcspace, _ismbcsymbol,
    _ismbcupper, _ismbcxdigit, _mbbtype, _setmbcp