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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 );
}
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