xref: /onnv-gate/usr/src/lib/libast/common/regex/regstat.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 /*
254887Schin  * return p stat info
264887Schin  */
274887Schin 
284887Schin #include "reglib.h"
294887Schin 
304887Schin regstat_t*
regstat(const regex_t * p)314887Schin regstat(const regex_t* p)
324887Schin {
334887Schin 	register Rex_t*	e;
344887Schin 
354887Schin 	e = p->env->rex;
364887Schin 	if (e && e->type == REX_BM)
374887Schin 		e = e->next;
384887Schin 	if (e && e->type == REX_BEG)
394887Schin 		e = e->next;
404887Schin 	if (e && e->type == REX_STRING)
414887Schin 		e = e->next;
424887Schin 	if (!e || e->type == REX_END && !e->next)
434887Schin 		p->env->stats.re_flags |= REG_LITERAL;
444887Schin 	p->env->stats.re_record = (p && p->env && p->env->rex->type == REX_BM) ? p->env->rex->re.bm.size : -1;
454887Schin 	return &p->env->stats;
464887Schin }
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