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00001 /*
00002  * COPYRIGHT:   See COPYING in the top level directory
00003  * PROJECT:     ReactOS system libraries
00004  * FILE:        lib/msvcrt/mbstring/mbscoll.c
00005  * PURPOSE:
00006  * PROGRAMER:   Ariadne
00007  * UPDATE HISTORY:
00008  *              12/04/99: Created
00009  */
00010 
00011 #include <mbstring.h>
00012 
00013 int colldif(unsigned short c1, unsigned short c2);
00014 
00015 /*
00016  * @implemented
00017  */
00018 int _mbscoll(const unsigned char *str1, const unsigned char *str2)
00019 {
00020     unsigned char *s1 = (unsigned char *)str1;
00021     unsigned char *s2 = (unsigned char *)str2;
00022 
00023     unsigned short *short_s1, *short_s2;
00024 
00025     int l1, l2;
00026 
00027     while ( *s1 != 0 ) {
00028 
00029         if (*s1 == 0)
00030             break;
00031 
00032         l1 = _ismbblead(*s1);
00033         l2 = _ismbblead(*s2);
00034         if ( !l1 &&  !l2  ) {
00035 
00036             if (*s1 != *s2)
00037                 return colldif(*s1, *s2);
00038             else {
00039                 s1 += 1;
00040                 s2 += 1;
00041             }
00042         }
00043         else if ( l1 && l2 ){
00044             short_s1 = (unsigned short *)s1;
00045             short_s2 = (unsigned short *)s2;
00046             if ( *short_s1 != *short_s2 )
00047                 return colldif(*short_s1, *short_s2);
00048             else {
00049                 s1 += 2;
00050                 s2 += 2;
00051 
00052             }
00053         }
00054         else
00055             return colldif(*s1, *s2);
00056     } ;
00057     return 0;
00058 }
00059 
00060 #if 0
00061 int _mbsbcoll(const unsigned char *str1, const unsigned char *str2)
00062 {
00063     unsigned char *s1 = (unsigned char *)str1;
00064     unsigned char *s2 = (unsigned char *)str2;
00065 
00066     unsigned short *short_s1, *short_s2;
00067 
00068     int l1, l2;
00069 
00070 
00071     while ( *s1 != 0 ) {
00072 
00073 
00074         l1 = _ismbblead(*s1);
00075         l2 = _ismbblead(*s2);
00076         if ( !l1 &&  !l2  ) {
00077 
00078             if (*s1 != *s2)
00079                 return colldif(*s1, *s2);
00080             else {
00081                 s1 += 1;
00082                 s2 += 1;
00083             }
00084         }
00085         else if ( l1 && l2 ){
00086             short_s1 = (unsigned short *)s1;
00087             short_s2 = (unsigned short *)s2;
00088             if ( *short_s1 != *short_s2 )
00089                 return colldif(*short_s1, *short_s2);
00090             else {
00091                 s1 += 2;
00092                 s2 += 2;
00093             }
00094         }
00095         else
00096             return colldif(*s1, *s2);
00097     } ;
00098     return 0;
00099 }
00100 #endif
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