1 /**************************************************************************** 2 * Copyright (c) 1998 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Thomas E. Dickey <dickey@clark.net> 1997 * 31 ****************************************************************************/ 32 33 #include <curses.priv.h> 34 35 MODULE_ID("$Id: keyok.c,v 1.3 1999/02/19 11:29:48 tom Exp $") 36 37 /* 38 * Enable (or disable) ncurses' interpretation of a keycode by adding (or 39 * removing) the corresponding 'tries' entry. 40 * 41 * Do this by storing a second tree of tries, which records the disabled keys. 42 * The simplest way to copy is to make a function that returns the string (with 43 * nulls set to 0200), then use that to reinsert the string into the 44 * corresponding tree. 45 */ 46 47 int keyok(int c, bool flag) 48 { 49 int code = ERR; 50 int count = 0; 51 char *s; 52 53 T((T_CALLED("keyok(%d,%d)"), c, flag)); 54 if (flag) { 55 while ((s = _nc_expand_try(SP->_key_ok, c, &count, 0)) != 0 56 && _nc_remove_key(&(SP->_key_ok), c)) { 57 _nc_add_to_try(&(SP->_keytry), s, c); 58 free(s); 59 code = OK; 60 count = 0; 61 } 62 } else { 63 while ((s = _nc_expand_try(SP->_keytry, c, &count, 0)) != 0 64 && _nc_remove_key(&(SP->_keytry), c)) { 65 _nc_add_to_try(&(SP->_key_ok), s, c); 66 free(s); 67 code = OK; 68 count = 0; 69 } 70 } 71 returnCode(code); 72 } 73