xref: /onnv-gate/usr/src/lib/libast/common/tm/tmlex.c (revision 12068:08a39a083754)
14887Schin /***********************************************************************
24887Schin *                                                                      *
34887Schin *               This software is part of the ast package               *
4*12068SRoger.Faulkner@Oracle.COM *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
54887Schin *                      and is licensed under the                       *
64887Schin *                  Common Public License, Version 1.0                  *
78462SApril.Chin@Sun.COM *                    by AT&T Intellectual Property                     *
84887Schin *                                                                      *
94887Schin *                A copy of the License is available at                 *
104887Schin *            http://www.opensource.org/licenses/cpl1.0.txt             *
114887Schin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
124887Schin *                                                                      *
134887Schin *              Information and Software Systems Research               *
144887Schin *                            AT&T Research                             *
154887Schin *                           Florham Park NJ                            *
164887Schin *                                                                      *
174887Schin *                 Glenn Fowler <gsf@research.att.com>                  *
184887Schin *                  David Korn <dgk@research.att.com>                   *
194887Schin *                   Phong Vo <kpv@research.att.com>                    *
204887Schin *                                                                      *
214887Schin ***********************************************************************/
224887Schin #pragma prototyped
234887Schin /*
244887Schin  * Glenn Fowler
254887Schin  * AT&T Bell Laboratories
264887Schin  *
274887Schin  * time conversion support
284887Schin  */
294887Schin 
304887Schin #include <ast.h>
314887Schin #include <tm.h>
324887Schin #include <ctype.h>
334887Schin 
344887Schin /*
354887Schin  * return the tab table index that matches s ignoring case and .'s
364887Schin  * tm_data.format checked if tminfo.format!=tm_data.format
374887Schin  *
384887Schin  * ntab and nsuf are the number of elements in tab and suf,
394887Schin  * -1 for 0 sentinel
404887Schin  *
414887Schin  * all isalpha() chars in str must match
424887Schin  * suf is a table of nsuf valid str suffixes
434887Schin  * if e is non-null then it will point to first unmatched char in str
444887Schin  * which will always be non-isalpha()
454887Schin  */
464887Schin 
474887Schin int
tmlex(register const char * s,char ** e,char ** tab,int ntab,char ** suf,int nsuf)484887Schin tmlex(register const char* s, char** e, char** tab, int ntab, char** suf, int nsuf)
494887Schin {
504887Schin 	register char**	p;
514887Schin 	register char*	x;
524887Schin 	register int	n;
534887Schin 
544887Schin 	for (p = tab, n = ntab; n-- && (x = *p); p++)
554887Schin 		if (*x && *x != '%' && tmword(s, e, x, suf, nsuf))
564887Schin 			return p - tab;
574887Schin 	if (tm_info.format != tm_data.format && tab >= tm_info.format && tab < tm_info.format + TM_NFORM)
584887Schin 	{
594887Schin 		tab = tm_data.format + (tab - tm_info.format);
604887Schin 		if (suf && tab >= tm_info.format && tab < tm_info.format + TM_NFORM)
614887Schin 			suf = tm_data.format + (suf - tm_info.format);
624887Schin 		for (p = tab, n = ntab; n-- && (x = *p); p++)
634887Schin 			if (*x && *x != '%' && tmword(s, e, x, suf, nsuf))
644887Schin 				return p - tab;
654887Schin 	}
664887Schin 	return -1;
674887Schin }
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