define_key.c revision 1.5 
1/* $OpenBSD: define_key.c,v 1.5 2010/01/12 23:22:05 nicm Exp $ */
2
3/****************************************************************************
4 * Copyright (c) 1998-2005,2006 Free Software Foundation, Inc.              *
5 *                                                                          *
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7 * copy of this software and associated documentation files (the            *
8 * "Software"), to deal in the Software without restriction, including      *
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10 * distribute, distribute with modifications, sublicense, and/or sell       *
11 * copies of the Software, and to permit persons to whom the Software is    *
12 * furnished to do so, subject to the following conditions:                 *
13 *                                                                          *
14 * The above copyright notice and this permission notice shall be included  *
15 * in all copies or substantial portions of the Software.                   *
16 *                                                                          *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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30
31/****************************************************************************
32 *  Author: Thomas E. Dickey                    1997-on                     *
33 ****************************************************************************/
34
35#include <curses.priv.h>
36
37MODULE_ID("$Id: define_key.c,v 1.5 2010/01/12 23:22:05 nicm Exp $")
38
39NCURSES_EXPORT(int)
40define_key(const char *str, int keycode)
41{
42    int code = ERR;
43
44    T((T_CALLED("define_key(%s,%d)"), _nc_visbuf(str), keycode));
45    if (SP == 0) {
46	code = ERR;
47    } else if (keycode > 0) {
48	unsigned ukey = (unsigned) keycode;
49
50	if (str != 0) {
51	    define_key(str, 0);
52	} else if (has_key(keycode)) {
53	    while (_nc_remove_key(&(SP->_keytry), ukey))
54		code = OK;
55	}
56	if (str != 0) {
57	    if (key_defined(str) == 0) {
58		if (_nc_add_to_try(&(SP->_keytry), str, ukey) == OK) {
59		    code = OK;
60		} else {
61		    code = ERR;
62		}
63	    } else {
64		code = ERR;
65	    }
66	}
67    } else {
68	while (_nc_remove_string(&(SP->_keytry), str))
69	    code = OK;
70    }
71    returnCode(code);
72}
73