62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
/* $TOG: str_utils.C /main/2 1997/09/03 17:26:30 mgreess $
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*
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* (c) Copyright 1996 Digital Equipment Corporation.
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* (c) Copyright 1996 Hewlett-Packard Company.
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* (c) Copyright 1996 International Business Machines Corp.
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* (c) Copyright 1993-1996 Sun Microsystems, Inc.
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* (c) Copyright 1996 Novell, Inc.
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* (c) Copyright 1996 FUJITSU LIMITED.
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* (c) Copyright 1996 Hitachi.
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*/
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#include <ctype.h>
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#include "str_utils.h"
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#ifdef NEED_STRCASECMP
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/*
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* In case strcasecmp and strncasecmp are not provided by the system
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* here are ones which do the trick.
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*/
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extern "C"
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int
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strcasecmp(register const char *s1,
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register const char *s2)
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{
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register int c1, c2;
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while (*s1 && *s2) {
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c1 = isupper(*s1) ? tolower(*s1) : *s1;
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c2 = isupper(*s2) ? tolower(*s2) : *s2;
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if (c1 != c2)
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return (c1 - c2);
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s1++;
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s2++;
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}
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return (int) (*s1 - *s2);
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}
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extern "C"
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int
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strncasecmp(register const char *s1,
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register const char *s2,
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register size_t count)
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{
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register int c1, c2;
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if (!count)
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return 0;
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while (*s1 && *s2) {
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c1 = isupper(*s1) ? tolower(*s1) : *s1;
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c2 = isupper(*s2) ? tolower(*s2) : *s2;
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if ((c1 != c2) || (! --count))
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return (c1 - c2);
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s1++;
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s2++;
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}
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return (int) (*s1 - *s2);
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}
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#endif
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