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1 | package be.nikiroo.jvcard.parsers; |
2 | ||
bcb54330 | 3 | import java.util.Iterator; |
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4 | import java.util.LinkedList; |
5 | import java.util.List; | |
6 | ||
7 | import be.nikiroo.jvcard.Card; | |
8 | import be.nikiroo.jvcard.Contact; | |
9 | import be.nikiroo.jvcard.Data; | |
10 | import be.nikiroo.jvcard.TypeInfo; | |
11 | ||
12 | public class Vcard21Parser { | |
bcb54330 NR |
13 | public static List<Contact> parse(Iterable<String> textData) { |
14 | Iterator<String> lines = textData.iterator(); | |
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15 | List<Contact> contacts = new LinkedList<Contact>(); |
16 | List<Data> datas = null; | |
17 | ||
bcb54330 NR |
18 | String nextRawLine = null; |
19 | if (lines.hasNext()) { | |
20 | nextRawLine = lines.next(); | |
21 | while (lines.hasNext() && isContinuation(nextRawLine)) { | |
22 | // BAD INPUT FILE. IGNORE. | |
23 | System.err | |
24 | .println("VCARD Parser warning: CONTINUATION line seen before any data line"); | |
25 | nextRawLine = lines.next(); | |
26 | } | |
27 | } | |
28 | ||
29 | while (nextRawLine != null) { | |
30 | StringBuilder rawLine = new StringBuilder(nextRawLine.trim()); | |
31 | if (lines.hasNext()) | |
32 | nextRawLine = lines.next(); | |
33 | else | |
34 | nextRawLine = null; | |
35 | ||
36 | while (isContinuation(nextRawLine)) { | |
37 | rawLine.append(nextRawLine.trim()); | |
38 | if (lines.hasNext()) | |
39 | nextRawLine = lines.next(); | |
40 | else | |
41 | nextRawLine = null; | |
42 | } | |
43 | ||
44 | String line = rawLine.toString(); | |
a3b510ab NR |
45 | if (line.equals("BEGIN:VCARD")) { |
46 | datas = new LinkedList<Data>(); | |
47 | } else if (line.equals("END:VCARD")) { | |
48 | if (datas == null) { | |
49 | // BAD INPUT FILE. IGNORE. | |
50 | System.err | |
51 | .println("VCARD Parser warning: END:VCARD seen before any VCARD:BEGIN"); | |
52 | } else { | |
53 | contacts.add(new Contact(datas)); | |
54 | } | |
55 | } else { | |
56 | if (datas == null) { | |
57 | // BAD INPUT FILE. IGNORE. | |
58 | System.err | |
59 | .println("VCARD Parser warning: data seen before any VCARD:BEGIN"); | |
60 | } else { | |
61 | List<TypeInfo> types = new LinkedList<TypeInfo>(); | |
62 | String name = ""; | |
63 | String value = ""; | |
64 | String group = ""; | |
65 | ||
66 | if (line.contains(":")) { | |
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67 | int colIndex = line.indexOf(':'); |
68 | String rest = line.substring(0, colIndex); | |
69 | value = line.substring(colIndex + 1); | |
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70 | |
71 | if (rest.contains(";")) { | |
72 | String tab[] = rest.split(";"); | |
73 | name = tab[0]; | |
74 | ||
75 | for (int i = 1; i < tab.length; i++) { | |
76 | if (tab[i].contains("=")) { | |
adf9c449 NR |
77 | int equIndex = tab[i].indexOf('='); |
78 | String tname = tab[i] | |
79 | .substring(0, equIndex); | |
80 | String tvalue = tab[i] | |
81 | .substring(equIndex + 1); | |
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82 | types.add(new TypeInfo(tname, tvalue)); |
83 | } else { | |
84 | types.add(new TypeInfo(tab[i], "")); | |
85 | } | |
86 | } | |
87 | } else { | |
88 | name = rest; | |
89 | } | |
90 | } else { | |
91 | name = line; | |
92 | } | |
93 | ||
94 | if (name.contains(".")) { | |
adf9c449 NR |
95 | int dotIndex = name.indexOf('.'); |
96 | group = name.substring(0, dotIndex); | |
97 | name = name.substring(dotIndex + 1); | |
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98 | } |
99 | ||
100 | datas.add(new Data(types, name, value, group)); | |
101 | } | |
102 | } | |
103 | } | |
104 | ||
105 | return contacts; | |
106 | } | |
107 | ||
108 | // -1 = no bkeys | |
109 | public static String toString(Contact contact, int startingBKey) { | |
110 | StringBuilder builder = new StringBuilder(); | |
111 | ||
112 | builder.append("BEGIN:VCARD"); | |
113 | builder.append("\r\n"); | |
114 | builder.append("VERSION:2.1"); | |
115 | builder.append("\r\n"); | |
1c03abaf NR |
116 | for (Data data : contact) { |
117 | StringBuilder dataBuilder = new StringBuilder(); | |
a3b510ab | 118 | if (data.getGroup() != null && !data.getGroup().trim().equals("")) { |
1c03abaf NR |
119 | dataBuilder.append(data.getGroup().trim()); |
120 | dataBuilder.append('.'); | |
a3b510ab | 121 | } |
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122 | dataBuilder.append(data.getName()); |
123 | for (TypeInfo type : data) { | |
124 | dataBuilder.append(';'); | |
125 | dataBuilder.append(type.getName()); | |
a3b510ab NR |
126 | if (type.getValue() != null |
127 | && !type.getValue().trim().equals("")) { | |
1c03abaf NR |
128 | dataBuilder.append('='); |
129 | dataBuilder.append(type.getValue()); | |
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130 | } |
131 | } | |
1c03abaf | 132 | dataBuilder.append(':'); |
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133 | |
134 | // TODO: bkey! | |
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135 | dataBuilder.append(data.getValue()); |
136 | ||
137 | // RFC says: Content lines SHOULD be folded to a maximum width of 75 | |
138 | // octets -> since it is SHOULD, we will just cut it as 74/75 chars | |
139 | // depending if the last one fits in one char (note: chars != octet) | |
140 | boolean continuation = false; | |
141 | while (dataBuilder.length() > 0) { | |
142 | int stop = 74; | |
143 | if (continuation) | |
144 | stop--; // the space takes 1 | |
145 | if (dataBuilder.length() > stop) { | |
146 | char car = dataBuilder.charAt(stop - 1); | |
147 | // RFC forbids cutting a character in 2 | |
148 | if (Character.isHighSurrogate(car)) { | |
149 | stop++; | |
150 | } | |
151 | } | |
152 | ||
153 | stop = Math.min(stop, dataBuilder.length()); | |
154 | if (continuation) | |
155 | builder.append(' '); | |
156 | builder.append(dataBuilder, 0, stop); | |
157 | builder.append("\r\n"); | |
158 | dataBuilder.delete(0, stop); | |
159 | ||
160 | continuation = true; | |
161 | } | |
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162 | } |
163 | builder.append("END:VCARD"); | |
164 | builder.append("\r\n"); | |
165 | ||
166 | return builder.toString(); | |
167 | } | |
168 | ||
169 | public static String toString(Card card) { | |
170 | StringBuilder builder = new StringBuilder(); | |
171 | ||
1c03abaf NR |
172 | for (Contact contact : card) { |
173 | builder.append(toString(contact, -1)); | |
a3b510ab | 174 | } |
78e4af97 | 175 | |
bcb54330 | 176 | builder.append("\r\n"); |
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177 | |
178 | return builder.toString(); | |
179 | } | |
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180 | |
181 | /** | |
182 | * Check if the given line is a continuation line or not. | |
183 | * | |
184 | * @param line | |
185 | * the line to check | |
186 | * | |
187 | * @return TRUE if the line is a continuation line | |
188 | */ | |
189 | private static boolean isContinuation(String line) { | |
190 | if (line != null && line.length() > 0) | |
191 | return (line.charAt(0) == ' ' || line.charAt(0) == '\t'); | |
192 | return false; | |
193 | } | |
a3b510ab | 194 | } |