/**************************************************************************** * Copyright (c) 2003-2005,2008 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /* ** Support functions for wide/narrow conversion. */ #include <curses.priv.h> MODULE_ID("$Id: charable.c,v 1.5 2008/07/05 20:51:41 tom Exp $") NCURSES_EXPORT(bool) _nc_is_charable(wchar_t ch) { bool result; #if HAVE_WCTOB result = (wctob((wint_t) ch) == (int) ch); #else result = (_nc_to_char(ch) >= 0); #endif return result; } NCURSES_EXPORT(int) _nc_to_char(wint_t ch) { int result; #if HAVE_WCTOB result = wctob(ch); #elif HAVE_WCTOMB char temp[MB_LEN_MAX]; result = wctomb(temp, ch); if (strlen(temp) == 1) result = UChar(temp[0]); else result = -1; #endif return result; } NCURSES_EXPORT(wint_t) _nc_to_widechar(int ch) { wint_t result; #if HAVE_BTOWC result = btowc(ch); #elif HAVE_MBTOWC wchar_t convert; char temp[2]; temp[0] = ch; temp[1] = '\0'; if (mbtowc(&convert, temp, 1) >= 0) result = convert; else result = WEOF; #endif return result; }