Support groff's escape for Unicode input. See

[mandoc.git] / mandoc.c

diff --git a/mandoc.c b/mandoc.c
index 671f059aa482971ae04b90e3a9cf148928908ee6..c9290214fa4508f36b2b3ea593b56d977625cc1e 100644 (file)
--- a/mandoc.c
+++ b/mandoc.c
@@ -1,4 +1,4 @@
-/*     $Id: mandoc.c,v 1.51 2011/05/14 17:54:42 kristaps Exp $ */
+/*     $Id: mandoc.c,v 1.52 2011/05/15 15:30:33 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -125,6 +125,14 @@ mandoc_escape(const char **end, const char **start, int *sz)
                break;
        case ('['):
                gly = ESCAPE_SPECIAL;
+               /*
+                * Unicode escapes are defined in groff as \[uXXXX] to
+                * \[u10FFFF], where the contained value must be a valid
+                * Unicode codepoint.  Here, however, only check whether
+                * it's not a zero-width escape.
+                */
+               if ('u' == cp[i] && ']' != cp[i + 1])
+                       gly = ESCAPE_UNICODE;
                term = ']';
                break;
        case ('C'):