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28 
29 /****************************************************************************
30  *  Author: Thomas E. Dickey                        1997-on                 *
31  *     and: Juergen Pfeifer                         2009                    *
32  ****************************************************************************/
33 
34 #include <curses.priv.h>
35 
36 MODULE_ID("$Id: define_key.c,v 1.21 2014/03/08 20:32:59 tom Exp $")
37 
38 NCURSES_EXPORT(int)
39 NCURSES_SP_NAME(define_key) (NCURSES_SP_DCLx const char *str, int keycode)
40 {
41     int code = ERR;
42 
43     T((T_CALLED("define_key(%p, %s,%d)"), (void *) SP_PARM, _nc_visbuf(str), keycode));
44     if (SP_PARM == 0 || !HasTInfoTerminal(SP_PARM)) {
45 	code = ERR;
46     } else if (keycode > 0) {
47 	unsigned ukey = (unsigned) keycode;
48 
49 #ifdef USE_TERM_DRIVER
50 #define CallHasKey(keycode) CallDriver_1(SP_PARM, td_kyExist, keycode)
51 #else
52 #define CallHasKey(keycode) NCURSES_SP_NAME(has_key)(NCURSES_SP_ARGx keycode)
53 #endif
54 
55 	if (str != 0) {
56 	    NCURSES_SP_NAME(define_key) (NCURSES_SP_ARGx str, 0);
57 	} else if (CallHasKey(keycode)) {
58 	    while (_nc_remove_key(&(SP_PARM->_keytry), ukey))
59 		code = OK;
60 	}
61 	if (str != 0) {
62 	    if (NCURSES_SP_NAME(key_defined) (NCURSES_SP_ARGx str) == 0) {
63 		if (_nc_add_to_try(&(SP_PARM->_keytry), str, ukey) == OK) {
64 		    code = OK;
65 		} else {
66 		    code = ERR;
67 		}
68 	    } else {
69 		code = ERR;
70 	    }
71 	}
72     } else {
73 	while (_nc_remove_string(&(SP_PARM->_keytry), str))
74 	    code = OK;
75     }
76     returnCode(code);
77 }
78 
79 #if NCURSES_SP_FUNCS
80 NCURSES_EXPORT(int)
81 define_key(const char *str, int keycode)
82 {
83     return NCURSES_SP_NAME(define_key) (CURRENT_SCREEN, str, keycode);
84 }
85 #endif
86