===================================================================
RCS file: /cvs/mandoc/chars.c,v
retrieving revision 1.43
retrieving revision 1.44
diff -u -p -r1.43 -r1.44
--- mandoc/chars.c	2011/05/15 22:29:50	1.43
+++ mandoc/chars.c	2011/05/17 11:50:20	1.44
@@ -1,4 +1,4 @@
-/*	$Id: chars.c,v 1.43 2011/05/15 22:29:50 kristaps Exp $ */
+/*	$Id: chars.c,v 1.44 2011/05/17 11:50:20 kristaps Exp $ */
 /*
  * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -138,7 +138,7 @@ mchars_res2cp(struct mchars *arg, const char *p, size_
 }
 
 /*
- * Numbered character to literal character.
+ * Numbered character string to ASCII codepoint.
  * This can only be a printable character (i.e., alnum, punct, space) so
  * prevent the character from ruining our state (backspace, newline, and
  * so on).
@@ -151,8 +151,22 @@ mchars_num2char(const char *p, size_t sz)
 
 	if ((i = mandoc_strntou(p, sz, 10)) < 0)
 		return('\0');
-
 	return(isprint(i) ? i : '\0');
+}
+
+/*
+ * Hex character string to Unicode codepoint.
+ * If the character is illegal, returns '\0'.
+ */
+int
+mchars_num2uc(const char *p, size_t sz)
+{
+	int               i;
+
+	if ((i = mandoc_strntou(p, sz, 16)) < 0)
+		return('\0');
+	/* FIXME: make sure we're not in a bogus range. */
+	return(i > 0x80 && i <= 0x10FFFF ? i : '\0');
 }
 
 /*