* mandoc: URL-fragment strings can only contain certain characters.
@ 2018-05-28 14:14 schwarze
0 siblings, 0 replies; only message in thread
From: schwarze @ 2018-05-28 14:14 UTC (permalink / raw)
To: source
Log Message:
-----------
URL-fragment strings can only contain certain characters.
Fixing HTML syntax violations e.g. in pf.conf(5) and ifconfig(8)
reported by Anton Lazarov <lists at wrant dot com>.
Modified Files:
--------------
mandoc:
html.c
Revision Data
-------------
Index: html.c
===================================================================
RCS file: /home/cvs/mandoc/mandoc/html.c,v
retrieving revision 1.229
retrieving revision 1.230
diff -Lhtml.c -Lhtml.c -u -p -r1.229 -r1.230
--- html.c
+++ html.c
@@ -287,10 +287,16 @@ html_make_id(const struct roff_node *n,
if (buf == NULL)
return NULL;
- /* http://www.w3.org/TR/html5/dom.html#the-id-attribute */
+ /*
+ * In ID attributes, only use ASCII characters that are
+ * permitted in URL-fragment strings according to the
+ * explicit list at:
+ * https://url.spec.whatwg.org/#url-fragment-string
+ */
for (cp = buf; *cp != '\0'; cp++)
- if (*cp == ' ')
+ if (isalnum((unsigned char)*cp) == 0 &&
+ strchr("!$&'()*+,-./:;=?@_~", *cp) == NULL)
*cp = '_';
if (unique == 0)
--
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