1 /****************************************************************************
2 * Copyright 2020 Thomas E. Dickey *
3 * Copyright 1999-2010,2016 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
27 * authorization. *
28 ****************************************************************************/
29
30 #include <curses.priv.h>
31 #include <tic.h> /* struct tinfo_fkeys */
32
33 MODULE_ID("$Id: init_keytry.c,v 1.19 2020/02/02 23:34:34 tom Exp $")
34
35 /*
36 ** _nc_init_keytry()
37 **
38 ** Construct the try for the current terminal's keypad keys.
39 **
40 */
41
42 /*
43 * Internal entrypoints use SCREEN* parameter to obtain capabilities rather
44 * than cur_term.
45 */
46 #undef CUR
47 #define CUR SP_TERMTYPE
48
49 #if BROKEN_LINKER
50 #undef _nc_tinfo_fkeys
51 #endif
52
53 /* LINT_PREPRO
54 #if 0*/
55 #include <init_keytry.h>
56 /* LINT_PREPRO
57 #endif*/
58
59 #if BROKEN_LINKER
60 const struct tinfo_fkeys *
_nc_tinfo_fkeysf(void)61 _nc_tinfo_fkeysf(void)
62 {
63 return _nc_tinfo_fkeys;
64 }
65 #endif
66
67 NCURSES_EXPORT(void)
_nc_init_keytry(SCREEN * sp)68 _nc_init_keytry(SCREEN *sp)
69 {
70 /* The sp->_keytry value is initialized in newterm(), where the sp
71 * structure is created, because we can not tell where keypad() or
72 * mouse_activate() (which will call keyok()) are first called.
73 */
74
75 if (sp != 0) {
76 unsigned n;
77
78 for (n = 0; _nc_tinfo_fkeys[n].code; n++) {
79 if (_nc_tinfo_fkeys[n].offset < STRCOUNT) {
80 (void) _nc_add_to_try(&(sp->_keytry),
81 CUR Strings[_nc_tinfo_fkeys[n].offset],
82 _nc_tinfo_fkeys[n].code);
83 }
84 }
85 #if NCURSES_XNAMES
86 /*
87 * Add any of the extended strings to the tries if their name begins
88 * with 'k', i.e., they follow the convention of other terminfo key
89 * names.
90 */
91 {
92 TERMTYPE *tp = &(sp->_term->type);
93 for (n = STRCOUNT; n < NUM_STRINGS(tp); ++n) {
94 const char *name = ExtStrname(tp, (int) n, strnames);
95 char *value = tp->Strings[n];
96 if (name != 0
97 && *name == 'k'
98 && value != 0
99 && NCURSES_SP_NAME(key_defined) (NCURSES_SP_ARGx
100 value) == 0) {
101 (void) _nc_add_to_try(&(sp->_keytry),
102 value,
103 n - STRCOUNT + KEY_MAX);
104 }
105 }
106 }
107 #endif
108 #ifdef TRACE
109 _nc_trace_tries(sp->_keytry);
110 #endif
111 }
112 }
113