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1
36 package org.columba.ristretto.imap.parser;
37
38 import java.util.ArrayList  ;
39 import java.util.List ;
40 import java.util.regex.Matcher ;
41 import java.util.regex.Pattern ;
42
43 import org.columba.ristretto.imap.IMAPResponse;
44 import org.columba.ristretto.imap.Namespace;
45 import org.columba.ristretto.imap.NamespaceCollection;
46 import org.columba.ristretto.parser.ParserException;
47
48
53 public class NamespaceParser {
54
55 private static final Pattern namespacePattern = Pattern.compile("\\(" + "\"([^\"]*)\"" + "\\s" + "\"([^\"]*)\"" + "(\\s\"([^\"]*)\"" + "\\s\\(([^\\)]*)\\))?" + "\\)");
66 private static final Pattern quotedPattern = Pattern
67 .compile("\"([^\"]*)\"\\s?");
69
76 public static final NamespaceCollection parse(IMAPResponse response)
77 throws ParserException {
78 return parse(response.getResponseMessage());
79 }
80
81
88 public static final NamespaceCollection parse(String input)
89 throws ParserException {
90 NamespaceCollection result = new NamespaceCollection();
91
92 String [] parts = tokenizeParts(input);
95
96 for (int i = 0; i < 3; i++) {
98 String part = parts[i];
99
100 if (part.equalsIgnoreCase("nil")) {
102 result.addNamespace(i, new Namespace(null, null));
103 } else {
104 Matcher namespaceMatcher = namespacePattern.matcher(part);
106
107 while (namespaceMatcher.find()) {
108 Namespace ns = new Namespace(namespaceMatcher.group(1),
109 namespaceMatcher.group(2));
110
111 if (namespaceMatcher.group(4) != null) {
113 ns.setExtensionName(namespaceMatcher.group(4));
114
115 List parameterList = new ArrayList ();
117 Matcher parameterMatcher = quotedPattern
118 .matcher(namespaceMatcher.group(5));
119 while (parameterMatcher.find()) {
120 parameterList.add(parameterMatcher.group(1));
121 }
122
123 ns.setExtensionParameter((String []) parameterList
125 .toArray(new String [0]));
126 }
127
128 result.addNamespace(i, ns);
129 }
130 }
131 }
132
133 return result;
134 }
135
136 private static String [] tokenizeParts(String input) throws ParserException {
137 String [] result = new String [3];
138 int start = 0;
139 int end = -1;
140
141 for (int i = 0; i < 3; i++) {
142 if (input.charAt(start) == '(') {
143 end = ParenthesisParser.getClosingPos(input, start);
144
145 result[i] = input.substring(start + 1, end);
147 } else {
148 end = start + 2;
149 result[i] = "NIL";
150 }
151 start = end + 1;
152
153 if( input.length() > start && input.charAt(start) == ' ') {
155 start ++;
156 }
157 }
158
159 return result;
160 }
161
162 } |
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