Imported Upstream version 93u+upstream

1 files changed, 53 insertions, 0 deletions

diff --git a/src/lib/libast/regex/regstat.c b/src/lib/libast/regex/regstat.c
new file mode 100644
index 0000000..c7f725f
--- /dev/null
+++ b/src/lib/libast/regex/regstat.c
@@ -0,0 +1,53 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+
+/*
+ * return p stat info
+ */
+
+#include "reglib.h"
+
+regstat_t*
+regstat(const regex_t* p)
+{
+	register Rex_t*	e;
+
+	p->env->stats.re_flags = p->env->flags;
+	p->env->stats.re_info = 0;
+	e = p->env->rex;
+	if (e && e->type == REX_BM)
+	{
+		p->env->stats.re_record = p->env->rex->re.bm.size;
+		e = e->next;
+	}
+	else
+		p->env->stats.re_record = 0;
+	if (e && e->type == REX_BEG)
+		e = e->next;
+	if (e && e->type == REX_STRING)
+		e = e->next;
+	if (!e || e->type == REX_END && !e->next)
+		p->env->stats.re_info |= REG_LITERAL;
+	p->env->stats.re_record = (p && p->env && p->env->rex->type == REX_BM) ? p->env->rex->re.bm.size : -1;
+	return &p->env->stats;
+}