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-rw-r--r--libraries/liblutil/testtavl.c158
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diff --git a/libraries/liblutil/testtavl.c b/libraries/liblutil/testtavl.c
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+/* testavl.c - Test Tim Howes AVL code */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1993 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP). Additional contributors include
+ * Howard Chu
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+#include <ac/string.h>
+
+#define AVL_INTERNAL
+#include "avl.h"
+
+static void ravl_print LDAP_P(( Avlnode *root, int depth, int thread ));
+static void myprint LDAP_P(( Avlnode *root ));
+static int avl_strcmp LDAP_P(( const void *s, const void *t ));
+
+int
+main( int argc, char **argv )
+{
+ Avlnode *tree = NULL, *n;
+ char command[ 10 ];
+ char name[ 80 ];
+ char *p;
+
+ printf( "> " );
+ while ( fgets( command, sizeof( command ), stdin ) != NULL ) {
+ switch( *command ) {
+ case 'n': /* new tree */
+ ( void ) tavl_free( tree, free );
+ tree = NULL;
+ break;
+ case 'p': /* print */
+ ( void ) myprint( tree );
+ break;
+ case 't': /* traverse with first, next */
+ printf( "***\n" );
+ for ( n = tavl_end( tree, TAVL_DIR_LEFT );
+ n != NULL;
+ n = tavl_next( n, TAVL_DIR_RIGHT ))
+ printf( "%s\n", n->avl_data );
+ printf( "***\n" );
+ break;
+ case 'f': /* find */
+ printf( "data? " );
+ if ( fgets( name, sizeof( name ), stdin ) == NULL )
+ exit( EXIT_SUCCESS );
+ name[ strlen( name ) - 1 ] = '\0';
+ if ( (p = (char *) tavl_find( tree, name, avl_strcmp ))
+ == NULL )
+ printf( "Not found.\n\n" );
+ else
+ printf( "%s\n\n", p );
+ break;
+ case 'i': /* insert */
+ printf( "data? " );
+ if ( fgets( name, sizeof( name ), stdin ) == NULL )
+ exit( EXIT_SUCCESS );
+ name[ strlen( name ) - 1 ] = '\0';
+ if ( tavl_insert( &tree, strdup( name ), avl_strcmp,
+ avl_dup_error ) != 0 )
+ printf( "\nNot inserted!\n" );
+ break;
+ case 'd': /* delete */
+ printf( "data? " );
+ if ( fgets( name, sizeof( name ), stdin ) == NULL )
+ exit( EXIT_SUCCESS );
+ name[ strlen( name ) - 1 ] = '\0';
+ if ( tavl_delete( &tree, name, avl_strcmp ) == NULL )
+ printf( "\nNot found!\n" );
+ break;
+ case 'q': /* quit */
+ exit( EXIT_SUCCESS );
+ break;
+ case '\n':
+ break;
+ default:
+ printf("Commands: insert, delete, print, new, quit\n");
+ }
+
+ printf( "> " );
+ }
+
+ return( 0 );
+}
+
+static const char bfc_array[] = "\\-/";
+static const char *bfcs = bfc_array+1;
+
+static void ravl_print( Avlnode *root, int depth, int thread )
+{
+ int i;
+
+ if ( root && !thread )
+ ravl_print( root->avl_link[1], depth+1, root->avl_bits[1] == AVL_THREAD );
+
+ for ( i = 0; i < depth; i++ )
+ printf( " " );
+ if ( thread )
+ printf( "~" );
+ else if ( root )
+ printf( "%c", bfcs[root->avl_bf] );
+ else
+ printf( " " );
+ if ( !root) {
+ printf( ".\n" );
+ return;
+ }
+ printf( "%s\n", (char *) root->avl_data );
+
+ if ( !thread )
+ ravl_print( root->avl_link[0], depth+1, root->avl_bits[0] == AVL_THREAD );
+}
+
+static void myprint( Avlnode *root )
+{
+ printf( "********\n" );
+
+ if ( root == 0 )
+ printf( "\tNULL\n" );
+ else
+ ravl_print( root, 0, 0 );
+
+ printf( "********\n" );
+}
+
+static int avl_strcmp( const void *s, const void *t )
+{
+ return strcmp( s, t );
+}