diff options
Diffstat (limited to 'ncurses-5.2/ncurses/base/keyok.c')
-rw-r--r-- | ncurses-5.2/ncurses/base/keyok.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/ncurses-5.2/ncurses/base/keyok.c b/ncurses-5.2/ncurses/base/keyok.c new file mode 100644 index 0000000..017b88b --- /dev/null +++ b/ncurses-5.2/ncurses/base/keyok.c @@ -0,0 +1,72 @@ +/**************************************************************************** + * Copyright (c) 1998 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. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Thomas E. Dickey <dickey@clark.net> 1997 * + ****************************************************************************/ + +#include <curses.priv.h> + +MODULE_ID("$Id$") + +/* + * Enable (or disable) ncurses' interpretation of a keycode by adding (or + * removing) the corresponding 'tries' entry. + * + * Do this by storing a second tree of tries, which records the disabled keys. + * The simplest way to copy is to make a function that returns the string (with + * nulls set to 0200), then use that to reinsert the string into the + * corresponding tree. + */ + +int keyok(int c, bool flag) +{ + int code = ERR; + int count = 0; + char *s; + + T((T_CALLED("keyok(%d,%d)"), c, flag)); + if (flag) { + while ((s = _nc_expand_try(SP->_key_ok, c, &count, 0)) != 0 + && _nc_remove_key(&(SP->_key_ok), c)) { + _nc_add_to_try(&(SP->_keytry), s, c); + free(s); + code = OK; + count = 0; + } + } else { + while ((s = _nc_expand_try(SP->_keytry, c, &count, 0)) != 0 + && _nc_remove_key(&(SP->_keytry), c)) { + _nc_add_to_try(&(SP->_key_ok), s, c); + free(s); + code = OK; + count = 0; + } + } + returnCode(code); +} |