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/* $OpenBSD: charable.c,v 1.1 2010/09/06 17:26:17 nicm Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 2003-2005,2008 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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** Support functions for wide/narrow conversion. |
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*/ |
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#include <curses.priv.h> |
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MODULE_ID("$Id: charable.c,v 1.1 2010/09/06 17:26:17 nicm Exp $") |
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NCURSES_EXPORT(bool) _nc_is_charable(wchar_t ch) |
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{ |
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bool result; |
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#if HAVE_WCTOB |
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result = (wctob((wint_t) ch) == (int) ch); |
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#else |
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result = (_nc_to_char(ch) >= 0); |
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#endif |
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return result; |
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} |
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NCURSES_EXPORT(int) _nc_to_char(wint_t ch) |
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{ |
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int result; |
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#if HAVE_WCTOB |
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result = wctob(ch); |
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#elif HAVE_WCTOMB |
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char temp[MB_LEN_MAX]; |
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result = wctomb(temp, ch); |
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if (strlen(temp) == 1) |
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result = UChar(temp[0]); |
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else |
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result = -1; |
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#endif |
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return result; |
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} |
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NCURSES_EXPORT(wint_t) _nc_to_widechar(int ch) |
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{ |
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wint_t result; |
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#if HAVE_BTOWC |
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result = btowc(ch); |
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#elif HAVE_MBTOWC |
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wchar_t convert; |
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char temp[2]; |
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temp[0] = ch; |
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temp[1] = '\0'; |
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if (mbtowc(&convert, temp, 1) >= 0) |
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result = convert; |
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else |
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result = WEOF; |
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#endif |
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return result; |
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} |