diff options
Diffstat (limited to 'chars.c')
-rw-r--r-- | chars.c | 20 |
1 files changed, 17 insertions, 3 deletions
@@ -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_t sz) } /* - * 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). @@ -151,10 +151,24 @@ 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'); +} + /* * Special character to string array. */ |