From: Vern Paxson <vern@ee.lbl.gov>
Date: Thu, 9 Dec 1993 13:57:23 +0000 (+0000)
Subject: Fixed bug in treating '$' as variable trailing context
X-Git-Tag: flex-2-5-5b~268
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d865c176c6e5bf6768dbc4577595cdfe20d0baab;p=flex

Fixed bug in treating '$' as variable trailing context
---

diff --git a/parse.y b/parse.y
index beb6e11..b3f517f 100644
--- a/parse.y
+++ b/parse.y
@@ -364,6 +364,13 @@ rule		:  re2 re
 
 		|  re '$'
 			{
+			headcnt = 0;
+			trailcnt = 1;
+			rulelen = 1;
+			varlength = false;
+
+			current_state_type = STATE_TRAILING_CONTEXT;
+
 			if ( trlcontxt )
 				{
 				synerr( "trailing context used twice" );
@@ -375,16 +382,13 @@ rule		:  re2 re
 				/* See the comment in the rule for "re2 re"
 				 * above.
 				 */
-				if ( ! varlength || headcnt != 0 )
-					warn(
+				warn(
 		"trailing context made variable due to preceding '|' action" );
 
-				/* Mark as variable. */
 				varlength = true;
-				headcnt = 0;
 				}
 
-			if ( lex_compat || (varlength && headcnt == 0) )
+			if ( lex_compat || varlength )
 				{
 				/* Again, see the comment in the rule for
 				 * "re2 re" above.
@@ -394,15 +398,6 @@ rule		:  re2 re
 				variable_trail_rule = true;
 				}
 
-			else
-				{
-				if ( ! varlength )
-					headcnt = rulelen;
-
-				++rulelen;
-				trailcnt = 1;
-				}
-
 			trlcontxt = true;
 
 			eps = mkstate( SYM_EPSILON );