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/*
* Copyright (c) 2016 Joshua Rubin <joshua@rubixconsulting.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <utf8proc.h>
#include "compat.h"
int
utf8proc_wcwidth(wchar_t wc)
{
int cat;
cat = utf8proc_category(wc);
if (cat == UTF8PROC_CATEGORY_CO) {
/*
* The private use category is where powerline and similar
* codepoints are stored, they have "ambiguous" width - use 1.
*/
return (1);
}
return (utf8proc_charwidth(wc));
}
int
utf8proc_mbtowc(wchar_t *pwc, const char *s, size_t n)
{
utf8proc_ssize_t slen;
if (s == NULL)
return (0);
/*
* *pwc == -1 indicates invalid codepoint
* slen < 0 indicates an error
*/
slen = utf8proc_iterate(s, n, pwc);
if (*pwc == (wchar_t)-1 || slen < 0)
return (-1);
return (slen);
}
int
utf8proc_wctomb(char *s, wchar_t wc)
{
if (s == NULL)
return (0);
if (!utf8proc_codepoint_valid(wc))
return (-1);
return (utf8proc_encode_char(wc, s));
}
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