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/* $OpenBSD: utf8.c,v 1.2 2016/01/18 19:06:37 schwarze Exp $ */
/*
* Copyright (c) 2015, 2016 Ingo Schwarze <schwarze@openbsd.org>
*
* 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 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.
*/
#ifndef SMALL
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
extern int f_nonprint;
int
mbsprint(const char *mbs, int print)
{
wchar_t wc;
int len; /* length in bytes of UTF-8 encoded string */
int width; /* display width of a single Unicode char */
int total_width; /* display width of the whole string */
for (total_width = 0; *mbs != '\0'; mbs += len) {
if ((len = mbtowc(&wc, mbs, MB_CUR_MAX)) == -1) {
(void)mbtowc(NULL, NULL, MB_CUR_MAX);
if (print)
putchar(f_nonprint ? '?' : *mbs);
total_width++;
len = 1;
} else if ((width = wcwidth(wc)) == -1) {
if (print) {
if (f_nonprint)
putchar('?');
else
fwrite(mbs, 1, len, stdout);
}
total_width++;
} else {
if (print)
fwrite(mbs, 1, len, stdout);
total_width += width;
}
}
return total_width;
}
#endif
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