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-rw-r--r--ncurses/base/key_defined.c78
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diff --git a/ncurses/base/key_defined.c b/ncurses/base/key_defined.c
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+/****************************************************************************
+ * Copyright (c) 2003,2006 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, 2003 *
+ ****************************************************************************/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: key_defined.c,v 1.6 2006/12/30 23:22:55 tom Exp $")
+
+static int
+find_definition(TRIES * tree, const char *str)
+{
+ TRIES *ptr;
+ int result = OK;
+
+ if (str != 0 && *str != '\0') {
+ for (ptr = tree; ptr != 0; ptr = ptr->sibling) {
+ if (UChar(*str) == UChar(ptr->ch)) {
+ if (str[1] == '\0' && ptr->child != 0) {
+ result = ERR;
+ } else if ((result = find_definition(ptr->child, str + 1))
+ == OK) {
+ result = ptr->value;
+ } else if (str[1] == '\0') {
+ result = ERR;
+ }
+ }
+ if (result != OK)
+ break;
+ }
+ }
+ return (result);
+}
+
+/*
+ * Returns the keycode associated with the given string. If none is found,
+ * return OK. If the string is only a prefix to other strings, return ERR.
+ * Otherwise, return the keycode's value (neither OK/ERR).
+ */
+NCURSES_EXPORT(int)
+key_defined(const char *str)
+{
+ int code = ERR;
+
+ T((T_CALLED("key_defined(%s)"), _nc_visbuf(str)));
+ if (SP != 0 && str != 0) {
+ code = find_definition(SP->_keytry, str);
+ }
+
+ returnCode(code);
+}