- for (n = 0; _nc_tinfo_fkeys[n].code; n++)
- if (_nc_tinfo_fkeys[n].offset < STRCOUNT)
- _nc_add_to_try(&(SP->_keytry),
- CUR Strings[_nc_tinfo_fkeys[n].offset],
- _nc_tinfo_fkeys[n].code);
+ if (sp != 0) {
+ for (n = 0; _nc_tinfo_fkeys[n].code; n++) {
+ if (_nc_tinfo_fkeys[n].offset < STRCOUNT) {
+ (void) _nc_add_to_try(&(sp->_keytry),
+ CUR Strings[_nc_tinfo_fkeys[n].offset],
+ _nc_tinfo_fkeys[n].code);
+ }
+ }
+#if NCURSES_XNAMES
+ /*
+ * Add any of the extended strings to the tries if their name begins
+ * with 'k', i.e., they follow the convention of other terminfo key
+ * names.
+ */
+ {
+ TERMTYPE *tp = &(sp->_term->type);
+ for (n = STRCOUNT; n < NUM_STRINGS(tp); ++n) {
+ const char *name = ExtStrname(tp, (int) n, strnames);
+ char *value = tp->Strings[n];
+ if (name != 0
+ && *name == 'k'
+ && value != 0
+ && NCURSES_SP_NAME(key_defined) (NCURSES_SP_ARGx
+ value) == 0) {
+ (void) _nc_add_to_try(&(sp->_keytry),
+ value,
+ n - STRCOUNT + KEY_MAX);
+ }
+ }
+ }
+#endif