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36 package org.columba.ristretto.parser;
37
38 import java.util.ArrayList  ;
39 import java.util.LinkedList ;
40 import java.util.List ;
41 import java.util.regex.Matcher ;
42 import java.util.regex.Pattern ;
43
44 import org.columba.ristretto.message.Address;
45
46
51 public class AddressParser {
52
53 private static final Pattern addressTokenizerPattern =
54 Pattern.compile("([^\\s]+?)(\\s|<|$)+");
55
56 private static final Pattern trimPattern =
57 Pattern.compile("[\"<]?([^\"<>]*)[\">]?");
58
59
61
62
70 public static Address[] parseMailboxList(CharSequence mailboxList) throws ParserException {
71 List result = new LinkedList ();
72 CharSequence [] tokens = tokenizeList(mailboxList);
73
74 for( int i=0; i< tokens.length; i++) {
75 result.add(parseAddress(tokens[i]));
76 }
77
78 Address[] a = new Address[result.size()];
79 result.toArray((Object []) a);
80 return a;
81 }
82
83
91 public static Address parseAddress(CharSequence address) throws ParserException {
92 Matcher addressTokenizer = addressTokenizerPattern.matcher(address);
93
94 ArrayList tokens = new ArrayList ();
95
96 while (addressTokenizer.find()) {
97 tokens.add(addressTokenizer.group(1));
98 }
99
100 if (tokens.size() < 1) {
101 throw new ParserException("No valid EMail address", address);
102 } else if (tokens.size() == 1) {
103 return new Address(trim((String )tokens.get(0)));
104 } else {
105 StringBuffer name = new StringBuffer ((String )tokens.get(0));
106
107 for (int i = 1; i < tokens.size() - 1; i++) {
108 name.append(' ');
109 name.append((String )tokens.get(i));
110 }
111
112 return new Address(trim(name),
113 trim((String )tokens.get(tokens.size() - 1)));
114 }
115 }
116
117 private static String trim(CharSequence input) {
118 Matcher trimMatcher = trimPattern.matcher(input);
119
120 if( trimMatcher.matches() ) {
121 return trimMatcher.group(1);
122 } else {
123 return input.toString();
124 }
125 }
126
127 private static CharSequence [] tokenizeList(CharSequence input) {
128 List result = new ArrayList ();
129 boolean quoted= false;
130
131 int start = 0;
132 int i;
133
134 for( i=0; i<input.length(); i++) {
135 char c = input.charAt(i);
136
137 switch( c ) {
138 case '\"' : {
139 quoted ^= true;
140 break;
141 }
142
143 case ',' : {
144 if( ! quoted ) {
145 result.add(input.subSequence(start, i));
146 start = i+1;
147 }
148 break;
149 }
150 }
151 }
152 if( start < i ) {
153 result.add(input.subSequence(start, i));
154 }
155
156 return (CharSequence [])result.toArray(new CharSequence [0]);
157 }
158 }
159 |
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