From 45f655402ed9aece7ea3dfffb8007a8c753d6f4a Mon Sep 17 00:00:00 2001 From: Ingo Schwarze Date: Sun, 30 Jan 2011 16:05:37 +0000 Subject: 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) --- chars.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'chars.c') diff --git a/chars.c b/chars.c index b9f4b4fd..ae478800 100644 --- a/chars.c +++ b/chars.c @@ -1,6 +1,7 @@ /* $Id$ */ /* * Copyright (c) 2009, 2010 Kristaps Dzonsons + * Copyright (c) 2011 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -152,6 +153,27 @@ chars_res2cp(void *arg, const char *p, size_t sz) } +/* + * Numbered character to literal character, + * represented as a null-terminated string for additional safety. + */ +const char * +chars_num2char(const char *p, size_t sz) +{ + int i; + static char c[2]; + + if (sz > 3) + return(NULL); + i = atoi(p); + if (i < 0 || i > 255) + return(NULL); + c[0] = (char)i; + c[1] = '\0'; + return(c); +} + + /* * Special character to string array. */ -- cgit