1/* $OpenBSD: utf8.c,v 1.2 2016/01/18 19:06:37 schwarze Exp $ */ 2 3/* 4 * Copyright (c) 2015, 2016 Ingo Schwarze <schwarze@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19#ifndef SMALL 20#include <stdio.h> 21#include <stdlib.h> 22#include <wchar.h> 23 24extern int f_nonprint; 25 26int 27mbsprint(const char *mbs, int print) 28{ 29 wchar_t wc; 30 int len; /* length in bytes of UTF-8 encoded string */ 31 int width; /* display width of a single Unicode char */ 32 int total_width; /* display width of the whole string */ 33 34 for (total_width = 0; *mbs != '\0'; mbs += len) { 35 if ((len = mbtowc(&wc, mbs, MB_CUR_MAX)) == -1) { 36 (void)mbtowc(NULL, NULL, MB_CUR_MAX); 37 if (print) 38 putchar(f_nonprint ? '?' : *mbs); 39 total_width++; 40 len = 1; 41 } else if ((width = wcwidth(wc)) == -1) { 42 if (print) { 43 if (f_nonprint) 44 putchar('?'); 45 else 46 fwrite(mbs, 1, len, stdout); 47 } 48 total_width++; 49 } else { 50 if (print) 51 fwrite(mbs, 1, len, stdout); 52 total_width += width; 53 } 54 } 55 return total_width; 56} 57#endif 58