Home | History | Annotate | Line # | Download | only in compat 
      1 /*
      2  * Copyright (c) 2016 Joshua Rubin <joshua (at) rubixconsulting.com>
      3  *
      4  * Permission to use, copy, modify, and distribute this software for any
      5  * purpose with or without fee is hereby granted, provided that the above
      6  * copyright notice and this permission notice appear in all copies.
      7  *
      8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
      9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     12  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
     13  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
     14  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     15  */
     16 
     17 #include <sys/types.h>
     18 
     19 #include <utf8proc.h>
     20 
     21 #include "compat.h"
     22 
     23 int
     24 utf8proc_wcwidth(wchar_t wc)
     25 {
     26 	int	cat;
     27 
     28 	cat = utf8proc_category(wc);
     29 	if (cat == UTF8PROC_CATEGORY_CO) {
     30 		/*
     31 		 * The private use category is where powerline and similar
     32 		 * codepoints are stored, they have "ambiguous" width - use 1.
     33 		 */
     34 		return (1);
     35 	}
     36 	return (utf8proc_charwidth(wc));
     37 }
     38 
     39 int
     40 utf8proc_mbtowc(wchar_t *pwc, const char *s, size_t n)
     41 {
     42 	utf8proc_ssize_t	slen;
     43 
     44 	if (s == NULL)
     45 		return (0);
     46 
     47 	/*
     48 	 * *pwc == -1 indicates invalid codepoint
     49 	 * slen < 0 indicates an error
     50 	 */
     51 	slen = utf8proc_iterate(s, n, (utf8proc_int32_t*)pwc);
     52 	if (*pwc == (wchar_t)-1 || slen < 0)
     53 		return (-1);
     54 	return (slen);
     55 }
     56 
     57 int
     58 utf8proc_wctomb(char *s, wchar_t wc)
     59 {
     60 	if (s == NULL)
     61 		return (0);
     62 
     63 	if (!utf8proc_codepoint_valid(wc))
     64 		return (-1);
     65 	return (utf8proc_encode_char(wc, s));
     66 }
     67