fjstricm.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 97 行

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*
*                            Open Watcom Project
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#include "variety.h"
#include <jstring.h>
#include <ctype.h>

/**
*
*  Name:        _fjstricmp              暥帤楍傪斾妑偡傞
*
*  Synopsis:    x = _fjstricmp( a, b );
*
*               int x;          寢壥
*               FJSTRING a, b;  暥帤楍
*
*  Description: 俀偮偺暥帤楍傪斾妑偡傞丅戝暥帤丄彫暥帤偼柍帇偟傑偡丅
*               俙俶俲暥帤丂亙丂僇僫暥帤丂亙丂娍帤暥帤丂偺戝彫娭學偵
*               偵側偭偰偄傞丅
*
*  Returns:     暥帤楍倎偺曽偑倐傛傝傕彫偝偄応崌偼晧悢傪丄戝偒偄応崌
*               偼惓悢傪曉偟丄倎偲倐偑摍偟偄偲偒偼侽傪曉偡丅
*
*
*  Name:        _fjstricmp      compare strings with mixed KANJI letters
*
*  Synopsis:    x = _fjstricmp( a, b );
*
*               int x;          resoult as compared
*               FJSTRING a, b;  two strings for compare each other
*
*  Description: The _fjstricmp function compares the string pointed to by a
*               to the string pointed to by b with case insensitivity.
*               All upper-case characters from a and b are mapped to
*               lower-case for the purposes of doing the comparison.
*               The rule of comparison is as below.
*                 Ascii and numeric letter < KATAKANA letter < KANJI letter
*               This function is a data independent form that accept far
*               pointer argunments. It is most useful in mix memory model
*               applications.
*
*  Returns:     The jstricmp function returns an integer less than, equal to
*               or greater than zero, indicating that the string pointed
*               to by a is less than, equal to, or greater than the string
*               pointed to by b.
*
**/

_WCRTLINK int _WCI86FAR _fjstricmp( const JCHAR _WCFAR *a, const JCHAR _WCFAR *b )
{
    JMOJI aa, bb;

    while( 1 ) {
        a = _fjgetmoji( a, (JMOJI _WCFAR *)&aa );
        b = _fjgetmoji( b, (JMOJI _WCFAR *)&bb );
        if( aa & 0xff00 )
            aa = jtoupper( aa );
        else
            aa = toupper( aa );
        if( bb & 0xff00 )
            bb = jtoupper( bb );
        else
            bb = toupper( bb );
        if( aa != bb ) return( ( aa < bb ) ? -1 : 1 );
        if( aa == 0 ) return( 0 );
    }
}