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    Length: 2913 (0xb61)
    Types: TextFile
    Names: »Lower.c«

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TextFile

static char rcsid[] =
	"$XConsortium: Lower.c,v 1.3 89/11/11 16:31:07 jim Exp $";

/* 
 * Copyright 1988 by the Massachusetts Institute of Technology
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose and without fee is hereby granted, provided 
 * that the above copyright notice appear in all copies and that both that 
 * copyright notice and this permission notice appear in supporting 
 * documentation, and that the name of M.I.T. not be used in advertising
 * or publicity pertaining to distribution of the software without specific, 
 * written prior permission. M.I.T. makes no representations about the 
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 */

#define  XK_LATIN1
#include <X11/keysymdef.h>

/*
 * ISO Latin-1 case conversion routine
 */

void
XmuCopyISOLatin1Lowered(dst, src)
    char *dst, *src;
{
    register unsigned char *dest, *source;

    for (dest = (unsigned char *)dst, source = (unsigned char *)src;
	 *source;
	 source++, dest++)
    {
	if ((*source >= XK_A) && (*source <= XK_Z))
	    *dest = *source + (XK_a - XK_A);
	else if ((*source >= XK_Agrave) && (*source <= XK_Odiaeresis))
	    *dest = *source + (XK_agrave - XK_Agrave);
	else if ((*source >= XK_Ooblique) && (*source <= XK_Thorn))
	    *dest = *source + (XK_oslash - XK_Ooblique);
	else
	    *dest = *source;
    }
    *dest = '\0';
}

void
XmuCopyISOLatin1Uppered(dst, src)
    char *dst, *src;
{
    register unsigned char *dest, *source;

    for (dest = (unsigned char *)dst, source = (unsigned char *)src;
	 *source;
	 source++, dest++)
    {
	if ((*source >= XK_a) && (*source <= XK_z))
	    *dest = *source - (XK_a - XK_A);
	else if ((*source >= XK_agrave) && (*source <= XK_odiaeresis))
	    *dest = *source - (XK_agrave - XK_Agrave);
	else if ((*source >= XK_slash) && (*source <= XK_thorn))
	    *dest = *source - (XK_oslash - XK_Ooblique);
	else
	    *dest = *source;
    }
    *dest = '\0';
}

int XmuCompareISOLatin1 (first, second)
    char *first, *second;
{
    register unsigned char *ap, *bp;

    for (ap = (unsigned char *) first, bp = (unsigned char *) second;
	 *ap && *bp; ap++, bp++) {
	register unsigned char a, b;

	if ((a = *ap) != (b = *bp)) {
	    /* try lowercasing and try again */

	    if ((a >= XK_A) && (a <= XK_Z))
	      a += (XK_a - XK_A);
	    else if ((a >= XK_Agrave) && (a <= XK_Odiaeresis))
	      a += (XK_agrave - XK_Agrave);
	    else if ((a >= XK_Ooblique) && (a <= XK_Thorn))
	      a += (XK_oslash - XK_Ooblique);

	    if ((b >= XK_A) && (b <= XK_Z))
	      b += (XK_a - XK_A);
	    else if ((b >= XK_Agrave) && (b <= XK_Odiaeresis))
	      b += (XK_agrave - XK_Agrave);
	    else if ((b >= XK_Ooblique) && (b <= XK_Thorn))
	      b += (XK_oslash - XK_Ooblique);

	    if (a != b) break;
	}
    }
    return (((int) *ap) - ((int) *bp));
}