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Date: Fri, 30 Jul 2010 13:14:09 -0400 (EDT)
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From: joerg@mdocml.bsd.lv
To: source@mdocml.bsd.lv
Subject: mdocml: Don't crash for the following test case as reported by Jordan 
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Log Message:
-----------
Don't crash for the following test case as reported by Jordan Gordeev:
.Bl -tag
.It
foo
...

Modified Files:
--------------
    mdocml:
        mdoc_action.c

Revision Data
-------------
Index: mdoc_action.c
===================================================================
RCS file: /home/joerg/cvsroot/mdocml/mdoc_action.c,v
retrieving revision 1.77
retrieving revision 1.78
diff -Lmdoc_action.c -Lmdoc_action.c -u -p -r1.77 -r1.78
--- mdoc_action.c
+++ mdoc_action.c
@@ -660,6 +660,13 @@ post_bl_tagwidth(POST_ARGS)
 		assert(MDOC_BLOCK == nn->type);
 		nn = nn->head->child;
 
+		if (nn == NULL) {
+			/* No -width for .Bl and first .It is emtpy */
+			if ( ! mdoc_nmsg(m, n, MANDOCERR_NOWIDTHARG))
+				return(0);
+			break;
+		}
+
 		if (MDOC_TEXT == nn->type) {
 			sz = strlen(nn->string) + 1;
 			break;
--
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