From a388f199193767bacbb38b172ab89cb84369736c Mon Sep 17 00:00:00 2001
From: Rong-En Fan <rafan@FreeBSD.org>
Date: Sun, 9 Nov 2008 09:06:04 +0000
Subject: - Flatten the vendor area

---
 ncurses/base/keyok.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 ncurses/base/keyok.c

(limited to 'ncurses/base/keyok.c')

diff --git a/ncurses/base/keyok.c b/ncurses/base/keyok.c
new file mode 100644
index 000000000000..ad8988cded3b
--- /dev/null
+++ b/ncurses/base/keyok.c
@@ -0,0 +1,78 @@
+/****************************************************************************
+ * Copyright (c) 1998-2000,2006 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.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *  Author: Thomas E. Dickey            1997-on                             *
+ ****************************************************************************/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: keyok.c,v 1.7 2006/12/30 16:22:33 tom Exp $")
+
+/*
+ * Enable (or disable) ncurses' interpretation of a keycode by adding (or
+ * removing) the corresponding 'tries' entry.
+ *
+ * Do this by storing a second tree of tries, which records the disabled keys. 
+ * The simplest way to copy is to make a function that returns the string (with
+ * nulls set to 0200), then use that to reinsert the string into the
+ * corresponding tree.
+ */
+
+NCURSES_EXPORT(int)
+keyok(int c, bool flag)
+{
+    int code = ERR;
+    int count = 0;
+    char *s;
+
+    T((T_CALLED("keyok(%d,%d)"), c, flag));
+    if (c >= 0) {
+	unsigned ch = (unsigned) c;
+	if (flag) {
+	    while ((s = _nc_expand_try(SP->_key_ok, ch, &count, 0)) != 0
+		   && _nc_remove_key(&(SP->_key_ok), ch)) {
+		code = _nc_add_to_try(&(SP->_keytry), s, ch);
+		free(s);
+		count = 0;
+		if (code != OK)
+		    break;
+	    }
+	} else {
+	    while ((s = _nc_expand_try(SP->_keytry, ch, &count, 0)) != 0
+		   && _nc_remove_key(&(SP->_keytry), ch)) {
+		code = _nc_add_to_try(&(SP->_key_ok), s, ch);
+		free(s);
+		count = 0;
+		if (code != OK)
+		    break;
+	    }
+	}
+    }
+    returnCode(code);
+}
-- 
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