Implement the \N'number' (numbered character) roff escape sequence.

Don't use it in new manuals, it is inherently non-portable, but we
need it for backward-compatibility with existing manuals, for example
in Xenocara driver pages.
ok kristaps@ jmc@ and tested by Matthieu Herrb (matthieu at openbsd dot org)

1 files changed, 2 insertions, 0 deletions

diff --git a/chars.h b/chars.h
index 52271f24..70abd3b2 100644
--- a/chars.h
+++ b/chars.h
@@ -1,6 +1,7 @@
 /*	$Id$ */
 /*
  * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -25,6 +26,7 @@ enum	chars {
 };
 
 void		 *chars_init(enum chars);
+const char	 *chars_num2char(const char *, size_t);
 const char	 *chars_spec2str(void *, const char *, size_t, size_t *);
 int		  chars_spec2cp(void *, const char *, size_t);
 const char	 *chars_res2str(void *, const char *, size_t, size_t *);