* mdocml: Reject the escape sequences \[uD800] to \[uDFFF] in the parser.
@ 2015-10-13 23:31 schwarze
0 siblings, 0 replies; only message in thread
From: schwarze @ 2015-10-13 23:31 UTC (permalink / raw)
To: source
Log Message:
-----------
Reject the escape sequences \[uD800] to \[uDFFF] in the parser.
These surrogates are not valid Unicode codepoints,
so treat them just like any other undefined character escapes:
Warn about them and do not produce output.
Issue noticed while talking to stsp@, semarie@, and bentley@.
Modified Files:
--------------
mdocml:
mandoc.c
Revision Data
-------------
Index: mandoc.c
===================================================================
RCS file: /home/cvs/mdocml/mdocml/mandoc.c,v
retrieving revision 1.95
retrieving revision 1.96
diff -Lmandoc.c -Lmandoc.c -u -p -r1.95 -r1.96
--- mandoc.c
+++ mandoc.c
@@ -333,6 +333,9 @@ mandoc_escape(const char **end, const ch
break;
if (*sz == 6 && (*start)[1] == '0')
break;
+ if (*sz == 5 && (*start)[1] == 'D' &&
+ strchr("89ABCDEF", (*start)[2]) != NULL)
+ break;
if ((int)strspn(*start + 1, "0123456789ABCDEFabcdef")
+ 1 == *sz)
gly = ESCAPE_UNICODE;
--
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2015-10-13 23:31 mdocml: Reject the escape sequences \[uD800] to \[uDFFF] in the parser schwarze
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