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Date: Thu, 4 Oct 2018 08:23:34 -0500 (EST)
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From: schwarze@mandoc.bsd.lv
To: source@mandoc.bsd.lv
Subject: mandoc: When a subsection header contains no letters but only special  
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Log Message:
-----------
When a subsection header contains no letters but only special 
characters, skip the TOC entry.  Issue reported by kristaps@.

Modified Files:
--------------
    mandoc:
        mdoc_html.c

Revision Data
-------------
Index: mdoc_html.c
===================================================================
RCS file: /home/cvs/mandoc/mandoc/mdoc_html.c,v
retrieving revision 1.314
retrieving revision 1.315
diff -Lmdoc_html.c -Lmdoc_html.c -u -p -r1.314 -r1.315
--- mdoc_html.c
+++ mdoc_html.c
@@ -541,11 +541,13 @@ mdoc_sh_pre(MDOC_ARGS)
 			    subn = subn->next) {
 				if (subn->tok != MDOC_Ss)
 					continue;
+				id = html_make_id(subn->head, 0);
+				if (id == NULL)
+					continue;
 				if (tsub == NULL)
 					print_otag(h, TAG_UL,
 					    "c", "Bl-compact");
 				tsub = print_otag(h, TAG_LI, "");
-				id = html_make_id(subn->head, 0);
 				print_otag(h, TAG_A, "hR", id);
 				free(id);
 				print_mdoc_nodelist(meta,
--
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