init_keytry.c revision 184989 
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28
29#include <curses.priv.h>
30
31#include <term.h>
32/* keypad_xmit, keypad_local, meta_on, meta_off */
33/* cursor_visible,cursor_normal,cursor_invisible */
34
35#include <tic.h>		/* struct tinfo_fkeys */
36
37#include <term_entry.h>
38
39MODULE_ID("$Id: init_keytry.c,v 1.12 2008/05/24 21:44:51 tom Exp $")
40
41/*
42**      _nc_init_keytry()
43**
44**      Construct the try for the current terminal's keypad keys.
45**
46*/
47
48/*
49 * Internal entrypoints use SCREEN* parameter to obtain capabilities rather
50 * than cur_term.
51 */
52#undef CUR
53#define CUR (sp->_term)->type.
54
55#if	BROKEN_LINKER
56#undef	_nc_tinfo_fkeys
57#endif
58
59/* LINT_PREPRO
60#if 0*/
61#include <init_keytry.h>
62/* LINT_PREPRO
63#endif*/
64
65#if	BROKEN_LINKER
66const struct tinfo_fkeys *
67_nc_tinfo_fkeysf(void)
68{
69    return _nc_tinfo_fkeys;
70}
71#endif
72
73NCURSES_EXPORT(void)
74_nc_init_keytry(SCREEN *sp)
75{
76    size_t n;
77
78    /* The sp->_keytry value is initialized in newterm(), where the sp
79     * structure is created, because we can not tell where keypad() or
80     * mouse_activate() (which will call keyok()) are first called.
81     */
82
83    if (sp != 0) {
84	for (n = 0; _nc_tinfo_fkeys[n].code; n++) {
85	    if (_nc_tinfo_fkeys[n].offset < STRCOUNT) {
86		(void) _nc_add_to_try(&(sp->_keytry),
87				      CUR Strings[_nc_tinfo_fkeys[n].offset],
88				      _nc_tinfo_fkeys[n].code);
89	    }
90	}
91#if NCURSES_XNAMES
92	/*
93	 * Add any of the extended strings to the tries if their name begins
94	 * with 'k', i.e., they follow the convention of other terminfo key
95	 * names.
96	 */
97	{
98	    TERMTYPE *tp = &(sp->_term->type);
99	    for (n = STRCOUNT; n < NUM_STRINGS(tp); ++n) {
100		const char *name = ExtStrname(tp, n, strnames);
101		char *value = tp->Strings[n];
102		if (name != 0
103		    && *name == 'k'
104		    && value != 0
105		    && key_defined(value) == 0) {
106		    (void) _nc_add_to_try(&(sp->_keytry),
107					  value,
108					  n - STRCOUNT + KEY_MAX);
109		}
110	    }
111	}
112#endif
113#ifdef TRACE
114	_nc_trace_tries(sp->_keytry);
115#endif
116    }
117}
118