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Java > Open Source Codes > org > apache > james > imapserver > commands > AstringArgument


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2  * Copyright (c) 2000-2004 The Apache Software Foundation. *
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5  * Licensed under the Apache License, Version 2.0 (the "License"); you *
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17
18 package org.apache.james.imapserver.commands;
19
20 import org.apache.james.util.Assert;
21
22 import java.util.StringTokenizer JavaDoc;
23
24 class AstringArgument implements ImapArgument
25 {
26     private String JavaDoc name;
27     private boolean isFinal;
28
29     public AstringArgument( String JavaDoc name )
30     {
31         this.name = name;
32     }
33
34     public Object JavaDoc parse( StringTokenizer JavaDoc tokens )
35             throws Exception JavaDoc
36     {
37         // TODO: do this properly - need to check for disallowed characters.
38
39         if ( ! tokens.hasMoreTokens() ) {
40             throw new Exception JavaDoc( "Missing argument <" + this.name + ">");
41         }
42         String JavaDoc token = tokens.nextToken();
43         Assert.isTrue( token.length() > 0 );
44
45         StringBuffer JavaDoc astring = new StringBuffer JavaDoc( token );
46
47         if ( astring.charAt(0) == '\"' ) {
48             while ( astring.length() == 1 ||
49                     astring.charAt( astring.length() - 1 ) != '\"' ) {
50                 if ( tokens.hasMoreTokens() ) {
51                     astring.append( " " );
52                     astring.append( tokens.nextToken() );
53                 }
54                 else {
55                     throw new Exception JavaDoc( "Missing closing quote for <" + this.name + ">" );
56                 }
57             }
58             astring.deleteCharAt( 0 );
59             astring.deleteCharAt( astring.length() - 1 );
60         }
61
62         return astring.toString();
63     }
64
65     public String JavaDoc format()
66     {
67         return "<" + this.name + ">";
68     }
69
70 }
71
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