diff options
Diffstat (limited to 'ncurses/widechar/charable.c')
-rw-r--r-- | ncurses/widechar/charable.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/ncurses/widechar/charable.c b/ncurses/widechar/charable.c new file mode 100644 index 0000000..cf72407 --- /dev/null +++ b/ncurses/widechar/charable.c @@ -0,0 +1,80 @@ +/**************************************************************************** + * Copyright (c) 2003-2004,2005 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 1.4 2005/04/16 18:08:56 tom Exp $") + +NCURSES_EXPORT(bool) _nc_is_charable(wchar_t ch) +{ + bool result; +#if HAVE_WCTOB + result = (wctob((wint_t) ch) == 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; +} |