xref: /openbsd/lib/libcurses/tinfo/init_keytry.c (revision 73471bf0)
1 /* $OpenBSD: init_keytry.c,v 1.6 2010/01/12 23:22:06 nicm Exp $ */
2 
3 /****************************************************************************
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30 
31 #include <curses.priv.h>
32 
33 #include <term.h>
34 /* keypad_xmit, keypad_local, meta_on, meta_off */
35 /* cursor_visible,cursor_normal,cursor_invisible */
36 
37 #include <tic.h>		/* struct tinfo_fkeys */
38 
39 #include <term_entry.h>
40 
41 MODULE_ID("$Id: init_keytry.c,v 1.6 2010/01/12 23:22:06 nicm Exp $")
42 
43 /*
44 **      _nc_init_keytry()
45 **
46 **      Construct the try for the current terminal's keypad keys.
47 **
48 */
49 
50 /*
51  * Internal entrypoints use SCREEN* parameter to obtain capabilities rather
52  * than cur_term.
53  */
54 #undef CUR
55 #define CUR (sp->_term)->type.
56 
57 #if	BROKEN_LINKER
58 #undef	_nc_tinfo_fkeys
59 #endif
60 
61 /* LINT_PREPRO
62 #if 0*/
63 #include <init_keytry.h>
64 /* LINT_PREPRO
65 #endif*/
66 
67 #if	BROKEN_LINKER
68 const struct tinfo_fkeys *
69 _nc_tinfo_fkeysf(void)
70 {
71     return _nc_tinfo_fkeys;
72 }
73 #endif
74 
75 NCURSES_EXPORT(void)
76 _nc_init_keytry(SCREEN *sp)
77 {
78     size_t n;
79 
80     /* The sp->_keytry value is initialized in newterm(), where the sp
81      * structure is created, because we can not tell where keypad() or
82      * mouse_activate() (which will call keyok()) are first called.
83      */
84 
85     if (sp != 0) {
86 	for (n = 0; _nc_tinfo_fkeys[n].code; n++) {
87 	    if (_nc_tinfo_fkeys[n].offset < STRCOUNT) {
88 		(void) _nc_add_to_try(&(sp->_keytry),
89 				      CUR Strings[_nc_tinfo_fkeys[n].offset],
90 				      _nc_tinfo_fkeys[n].code);
91 	    }
92 	}
93 #if NCURSES_XNAMES
94 	/*
95 	 * Add any of the extended strings to the tries if their name begins
96 	 * with 'k', i.e., they follow the convention of other terminfo key
97 	 * names.
98 	 */
99 	{
100 	    TERMTYPE *tp = &(sp->_term->type);
101 	    for (n = STRCOUNT; n < NUM_STRINGS(tp); ++n) {
102 		const char *name = ExtStrname(tp, n, strnames);
103 		char *value = tp->Strings[n];
104 		if (name != 0
105 		    && *name == 'k'
106 		    && value != 0
107 		    && key_defined(value) == 0) {
108 		    (void) _nc_add_to_try(&(sp->_keytry),
109 					  value,
110 					  n - STRCOUNT + KEY_MAX);
111 		}
112 	    }
113 	}
114 #endif
115 #ifdef TRACE
116 	_nc_trace_tries(sp->_keytry);
117 #endif
118     }
119 }
120