Add ncurses 6.4

third_party/ncurses/init_keytry.c

@@ -0,0 +1,112 @@
+/****************************************************************************
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 1999-2010,2016 Free Software Foundation, Inc.                  *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+#include "curses.priv.h"
+#include "tic.h"		/* struct tinfo_fkeys */
+
+MODULE_ID("$Id: init_keytry.c,v 1.19 2020/02/02 23:34:34 tom Exp $")
+
+/*
+**      _nc_init_keytry()
+**
+**      Construct the try for the current terminal's keypad keys.
+**
+*/
+
+/*
+ * Internal entrypoints use SCREEN* parameter to obtain capabilities rather
+ * than cur_term.
+ */
+#undef CUR
+#define CUR SP_TERMTYPE
+
+#if	BROKEN_LINKER
+#undef	_nc_tinfo_fkeys
+#endif
+
+/* LINT_PREPRO
+#if 0*/
+#include "init_keytry.h"
+/* LINT_PREPRO
+#endif*/
+
+#if	BROKEN_LINKER
+const struct tinfo_fkeys *
+_nc_tinfo_fkeysf(void)
+{
+    return _nc_tinfo_fkeys;
+}
+#endif
+
+NCURSES_EXPORT(void)
+_nc_init_keytry(SCREEN *sp)
+{
+    /* The sp->_keytry value is initialized in newterm(), where the sp
+     * structure is created, because we can not tell where keypad() or
+     * mouse_activate() (which will call keyok()) are first called.
+     */
+
+    if (sp != 0) {
+	unsigned n;
+
+	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
+#ifdef TRACE
+	_nc_trace_tries(sp->_keytry);
+#endif
+    }
+}