charable.c revision 184989
162607Sitojun/**************************************************************************** 2122677Sume * Copyright (c) 2003-2005,2008 Free Software Foundation, Inc. * 355163Sshin * * 455163Sshin * Permission is hereby granted, free of charge, to any person obtaining a * 555163Sshin * copy of this software and associated documentation files (the * 655163Sshin * "Software"), to deal in the Software without restriction, including * 762607Sitojun * without limitation the rights to use, copy, modify, merge, publish, * 855163Sshin * distribute, distribute with modifications, sublicense, and/or sell * 955163Sshin * copies of the Software, and to permit persons to whom the Software is * 1055163Sshin * furnished to do so, subject to the following conditions: * 1155163Sshin * * 1255163Sshin * The above copyright notice and this permission notice shall be included * 1355163Sshin * in all copies or substantial portions of the Software. * 1455163Sshin * * 1555163Sshin * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 1655163Sshin * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 1755163Sshin * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 1855163Sshin * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 1962607Sitojun * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 2055163Sshin * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 2155163Sshin * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 2255163Sshin * * 2355163Sshin * Except as contained in this notice, the name(s) of the above copyright * 2455163Sshin * holders shall not be used in advertising or otherwise to promote the * 2555163Sshin * sale, use or other dealings in this Software without prior written * 2655163Sshin * authorization. * 2755163Sshin ****************************************************************************/ 2855163Sshin 2955163Sshin/* 3055163Sshin** Support functions for wide/narrow conversion. 3155163Sshin*/ 3255163Sshin 3355163Sshin#include <curses.priv.h> 34243232Shrs 3555163SshinMODULE_ID("$Id: charable.c,v 1.5 2008/07/05 20:51:41 tom Exp $") 3655163Sshin 3755163SshinNCURSES_EXPORT(bool) _nc_is_charable(wchar_t ch) 3855163Sshin{ 3955163Sshin bool result; 4055163Sshin#if HAVE_WCTOB 4155163Sshin result = (wctob((wint_t) ch) == (int) ch); 4255163Sshin#else 4355163Sshin result = (_nc_to_char(ch) >= 0); 4455163Sshin#endif 4555163Sshin return result; 4655163Sshin} 4755163Sshin 4855163SshinNCURSES_EXPORT(int) _nc_to_char(wint_t ch) 4955163Sshin{ 5055163Sshin int result; 5162607Sitojun#if HAVE_WCTOB 5255163Sshin result = wctob(ch); 53119076Sume#elif HAVE_WCTOMB 54119076Sume char temp[MB_LEN_MAX]; 55119076Sume result = wctomb(temp, ch); 5655163Sshin if (strlen(temp) == 1) 5755163Sshin result = UChar(temp[0]); 5855163Sshin else 5955163Sshin result = -1; 6055163Sshin#endif 6155163Sshin return result; 6255163Sshin} 6355163Sshin 6455163SshinNCURSES_EXPORT(wint_t) _nc_to_widechar(int ch) 6555163Sshin{ 6662607Sitojun wint_t result; 6755163Sshin#if HAVE_BTOWC 6862607Sitojun result = btowc(ch); 6955163Sshin#elif HAVE_MBTOWC 7055163Sshin wchar_t convert; 7155163Sshin char temp[2]; 7255163Sshin temp[0] = ch; 7355163Sshin temp[1] = '\0'; 7462607Sitojun if (mbtowc(&convert, temp, 1) >= 0) 7555163Sshin result = convert; 7655163Sshin else 7755163Sshin result = WEOF; 7855163Sshin#endif 7955163Sshin return result; 8055163Sshin} 8155163Sshin