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/* $OpenBSD: utf8.c,v 1.2 2016/01/18 19:06:37 schwarze Exp $ */ |
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/* |
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* Copyright (c) 2015, 2016 Ingo Schwarze <schwarze@openbsd.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#ifndef SMALL |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <wchar.h> |
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extern int f_nonprint; |
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int |
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mbsprint(const char *mbs, int print) |
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{ |
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wchar_t wc; |
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int len; /* length in bytes of UTF-8 encoded string */ |
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int width; /* display width of a single Unicode char */ |
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int total_width; /* display width of the whole string */ |
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for (total_width = 0; *mbs != '\0'; mbs += len) { |
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if ((len = mbtowc(&wc, mbs, MB_CUR_MAX)) == -1) { |
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(void)mbtowc(NULL, NULL, MB_CUR_MAX); |
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if (print) |
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putchar(f_nonprint ? '?' : *mbs); |
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total_width++; |
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len = 1; |
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} else if ((width = wcwidth(wc)) == -1) { |
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if (print) { |
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if (f_nonprint) |
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putchar('?'); |
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else |
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fwrite(mbs, 1, len, stdout); |
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} |
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total_width++; |
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} else { |
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if (print) |
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fwrite(mbs, 1, len, stdout); |
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total_width += width; |
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} |
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} |
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return total_width; |
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} |
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#endif |