1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2011 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Eclipse Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.eclipse.org/org/documents/epl-v10.html * 11 * (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 24 /* 25 * return p stat info 26 */ 27 28 #include "reglib.h" 29 30 regstat_t* regstat(const regex_t * p)31regstat(const regex_t* p) 32 { 33 register Rex_t* e; 34 35 p->env->stats.re_flags = p->env->flags; 36 p->env->stats.re_info = 0; 37 e = p->env->rex; 38 if (e && e->type == REX_BM) 39 { 40 p->env->stats.re_record = p->env->rex->re.bm.size; 41 e = e->next; 42 } 43 else 44 p->env->stats.re_record = 0; 45 if (e && e->type == REX_BEG) 46 e = e->next; 47 if (e && e->type == REX_STRING) 48 e = e->next; 49 if (!e || e->type == REX_END && !e->next) 50 p->env->stats.re_info |= REG_LITERAL; 51 p->env->stats.re_record = (p && p->env && p->env->rex->type == REX_BM) ? p->env->rex->re.bm.size : -1; 52 return &p->env->stats; 53 } 54