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Power CD-ROM!! 7
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prgmming
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clipper
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strpbrk.c
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C/C++ Source or Header
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1993-10-14
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2KB
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85 lines
/*
* GT CLIPPER STANDARD HEADER
*
* File......: strpbrk.c
* Author....: Andy M Leighton
* BBS.......: The Dark Knight Returns
* Net/Node..: 050/069
* User Name.: Andy Leighton
* Date......: 23/05/93
* Revision..: 1.00
*
* This is an original work by Andy Leighton and is placed in the
* public domain.
*
* Modification history:
* ---------------------
*
* $Log$
*
*/
/*
* $DOC$
* $FUNCNAME$
* GT_STRPBRK()
* $CATEGORY$
* String
* $ONELINER$
* Return string after 1st char from a set
* $SYNTAX$
* GT_StrpBrk(<cStr>, <cSet>) --> cString
* $ARGUMENTS$
* <cStr> - The input string
* <cSet> - The set of characters to find
* $RETURNS$
* cString - The input string after the first occurance of any
* character from <cSet>
* $DESCRIPTION$
* Return a string after the first occurance of any character from
* the input set <cSet>.
* $EXAMPLES$
*
* ? GT_Strpbrk("This is a test", "sa ") // prints "s is a test"
* ? GT_Strpbrk("This is a test", "et") // prints "test"
*
* $END$
*/
#include "extend.h"
CLIPPER
GT_strpbrk()
{
char *string;
char *cset;
int l1, l2;
int p1, p2;
if (ISCHAR(1) && ISCHAR(2)) {
string = _parc(1);
cset = _parc(2);
l1 = _parclen(1);
l2 = _parclen(2);
p1 = p2 = 0;
do {
for (p2 = 0; (p2 < l2) && (cset[p2] != string[p1]); ++p2)
;
if (p2 < l2) {
_retc(string + p1);
break;
}
} while (p1++ < l1);
if (p2 >= l2)
_retc((char *) NULL);
} else {
_retc((char *) NULL); // parameter mismatch - error NullStr
}
}