GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcurses/widechar/lib_cchar.c Lines: 0 26 0.0 %
Date: 2017-11-13 Branches: 0 24 0.0 %

Line Branch Exec Source
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/* $OpenBSD: lib_cchar.c,v 1.1 2010/09/06 17:26:17 nicm Exp $ */
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/****************************************************************************
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 * Copyright (c) 2001-2005,2007 Free Software Foundation, Inc.              *
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 *                                                                          *
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 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * copy of this software and associated documentation files (the            *
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 * "Software"), to deal in the Software without restriction, including      *
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 * without limitation the rights to use, copy, modify, merge, publish,      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * furnished to do so, subject to the following conditions:                 *
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 *                                                                          *
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 * The above copyright notice and this permission notice shall be included  *
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 * in all copies or substantial portions of the Software.                   *
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 *                                                                          *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 *                                                                          *
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 * Except as contained in this notice, the name(s) of the above copyright   *
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 * holders shall not be used in advertising or otherwise to promote the     *
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 * sale, use or other dealings in this Software without prior written       *
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 * authorization.                                                           *
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 ****************************************************************************/
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/*
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**	lib_cchar.c
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**
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**	The routines setcchar() and getcchar().
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**
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*/
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#include <curses.priv.h>
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MODULE_ID("$Id: lib_cchar.c,v 1.1 2010/09/06 17:26:17 nicm Exp $")
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/*
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 * The SuSv2 description leaves some room for interpretation.  We'll assume wch
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 * points to a string which is L'\0' terminated, contains at least one
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 * character with strictly positive width, which must be the first, and
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 * contains no characters of negative width.
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 */
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NCURSES_EXPORT(int)
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setcchar(cchar_t *wcval,
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	 const wchar_t *wch,
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	 const attr_t attrs,
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	 short color_pair,
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	 const void *opts)
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{
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    int i;
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    int len;
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    int code = OK;
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    TR(TRACE_CCALLS, (T_CALLED("setcchar(%p,%s,%lu,%d,%p)"),
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		      wcval, _nc_viswbuf(wch),
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		      (unsigned long) attrs, color_pair, opts));
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    len = wcslen(wch);
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    if (opts != NULL
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	|| (len > 1 && wcwidth(wch[0]) < 0)) {
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	code = ERR;
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    } else {
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	if (len > CCHARW_MAX)
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	    len = CCHARW_MAX;
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	/*
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	 * If we have a following spacing-character, stop at that point.  We
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	 * are only interested in adding non-spacing characters.
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	 */
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	for (i = 1; i < len; ++i) {
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	    if (wcwidth(wch[i]) != 0) {
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		len = i;
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		break;
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	    }
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	}
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	memset(wcval, 0, sizeof(*wcval));
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	if (len != 0) {
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	    SetAttr(*wcval, attrs | COLOR_PAIR(color_pair));
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	    SetPair(CHDEREF(wcval), color_pair);
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	    memcpy(&wcval->chars, wch, len * sizeof(wchar_t));
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	    TR(TRACE_CCALLS, ("copy %d wchars, first is %s", len,
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			      _tracecchar_t(wcval)));
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	}
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    }
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    TR(TRACE_CCALLS, (T_RETURN("%d"), code));
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    return (code);
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}
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NCURSES_EXPORT(int)
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getcchar(const cchar_t *wcval,
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	 wchar_t *wch,
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	 attr_t *attrs,
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	 short *color_pair,
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	 void *opts)
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{
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    wchar_t *wp;
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    int len;
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    int code = ERR;
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    TR(TRACE_CCALLS, (T_CALLED("getcchar(%p,%p,%p,%p,%p)"),
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		      wcval, wch, attrs, color_pair, opts));
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    if (opts == NULL) {
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	len = (wp = wmemchr(wcval->chars, L'\0', CCHARW_MAX))
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	    ? wp - wcval->chars
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	    : CCHARW_MAX;
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	if (wch == NULL) {
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	    code = len;
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	} else if (attrs == 0 || color_pair == 0) {
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	    code = ERR;
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	} else if (len >= 0) {
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	    *attrs = AttrOf(*wcval) & A_ATTRIBUTES;
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	    *color_pair = GetPair(*wcval);
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	    wmemcpy(wch, wcval->chars, (unsigned) len);
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	    wch[len] = L'\0';
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	    code = OK;
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	}
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    }
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    TR(TRACE_CCALLS, (T_RETURN("%d"), code));
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    return (code);
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}