1 /* $NetBSD: testavl.c,v 1.2 2021/08/14 16:14:56 christos Exp $ */
2
3 /* testavl.c - Test Tim Howes AVL code */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 1998-2021 The OpenLDAP Foundation.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted only as authorized by the OpenLDAP
12 * Public License.
13 *
14 * A copy of this license is available in the file LICENSE in the
15 * top-level directory of the distribution or, alternatively, at
16 * <http://www.OpenLDAP.org/license.html>.
17 */
18 /* Portions Copyright (c) 1993 Regents of the University of Michigan.
19 * All rights reserved.
20 *
21 * Redistribution and use in source and binary forms are permitted
22 * provided that this notice is preserved and that due credit is given
23 * to the University of Michigan at Ann Arbor. The name of the University
24 * may not be used to endorse or promote products derived from this
25 * software without specific prior written permission. This software
26 * is provided ``as is'' without express or implied warranty.
27 */
28 /* ACKNOWLEDGEMENTS:
29 * This work was originally developed by the University of Michigan
30 * (as part of U-MICH LDAP).
31 */
32
33 #include <sys/cdefs.h>
34 __RCSID("$NetBSD: testavl.c,v 1.2 2021/08/14 16:14:56 christos Exp $");
35
36 #include "portable.h"
37
38 #include <stdio.h>
39
40 #include <ac/stdlib.h>
41 #include <ac/string.h>
42
43 #define AVL_INTERNAL
44 #define AVL_NONREENTRANT
45 #include "ldap_avl.h"
46
47 static void ravl_print LDAP_P(( Avlnode *root, int depth ));
48 static void myprint LDAP_P(( Avlnode *root ));
49 static int avl_strcmp LDAP_P(( const void *s, const void *t ));
50
51 int
main(int argc,char ** argv)52 main( int argc, char **argv )
53 {
54 Avlnode *tree = NULL;
55 char command[ 10 ];
56 char name[ 80 ];
57 char *p;
58
59 printf( "> " );
60 while ( fgets( command, sizeof( command ), stdin ) != NULL ) {
61 switch( *command ) {
62 case 'n': /* new tree */
63 ( void ) ldap_avl_free( tree, free );
64 tree = NULL;
65 break;
66 case 'p': /* print */
67 ( void ) myprint( tree );
68 break;
69 case 't': /* traverse with first, next */
70 #ifdef AVL_NONREENTRANT
71 printf( "***\n" );
72 for ( p = (char * ) ldap_avl_getfirst( tree );
73 p != NULL;
74 p = (char *) ldap_avl_getnext())
75 printf( "%s\n", p );
76 printf( "***\n" );
77 #else
78 printf( "*** reentrant interface not implemented ***" );
79 #endif
80 break;
81 case 'f': /* find */
82 printf( "data? " );
83 if ( fgets( name, sizeof( name ), stdin ) == NULL )
84 exit( EXIT_SUCCESS );
85 name[ strlen( name ) - 1 ] = '\0';
86 if ( (p = (char *) ldap_avl_find( tree, name, avl_strcmp ))
87 == NULL )
88 printf( "Not found.\n\n" );
89 else
90 printf( "%s\n\n", p );
91 break;
92 case 'i': /* insert */
93 printf( "data? " );
94 if ( fgets( name, sizeof( name ), stdin ) == NULL )
95 exit( EXIT_SUCCESS );
96 name[ strlen( name ) - 1 ] = '\0';
97 if ( ldap_avl_insert( &tree, strdup( name ), avl_strcmp,
98 ldap_avl_dup_error ) != 0 )
99 printf( "\nNot inserted!\n" );
100 break;
101 case 'd': /* delete */
102 printf( "data? " );
103 if ( fgets( name, sizeof( name ), stdin ) == NULL )
104 exit( EXIT_SUCCESS );
105 name[ strlen( name ) - 1 ] = '\0';
106 if ( ldap_avl_delete( &tree, name, avl_strcmp ) == NULL )
107 printf( "\nNot found!\n" );
108 break;
109 case 'q': /* quit */
110 exit( EXIT_SUCCESS );
111 break;
112 case '\n':
113 break;
114 default:
115 printf("Commands: insert, delete, print, new, quit\n");
116 }
117
118 printf( "> " );
119 }
120
121 return( 0 );
122 }
123
ravl_print(Avlnode * root,int depth)124 static void ravl_print( Avlnode *root, int depth )
125 {
126 int i;
127
128 if ( root == 0 )
129 return;
130
131 ravl_print( root->avl_right, depth+1 );
132
133 for ( i = 0; i < depth; i++ )
134 printf( " " );
135 printf( "%s %d\n", (char *) root->avl_data, root->avl_bf );
136
137 ravl_print( root->avl_left, depth+1 );
138 }
139
myprint(Avlnode * root)140 static void myprint( Avlnode *root )
141 {
142 printf( "********\n" );
143
144 if ( root == 0 )
145 printf( "\tNULL\n" );
146 else
147 ravl_print( root, 0 );
148
149 printf( "********\n" );
150 }
151
avl_strcmp(const void * s,const void * t)152 static int avl_strcmp( const void *s, const void *t )
153 {
154 return strcmp( s, t );
155 }
156