1/* 2 * Copyright (c) 2016 Joshua Rubin <joshua@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 23int 24utf8proc_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 39int 40utf8proc_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, pwc); 52 if (*pwc == (wchar_t)-1 || slen < 0) 53 return (-1); 54 return (slen); 55} 56 57int 58utf8proc_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