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1
11 package org.eclipse.jdt.internal.ui.text.javadoc;
12
13
14 import java.util.ArrayList  ;
15 import java.util.List ;
16
17 import org.eclipse.core.runtime.Preferences;
18
19 import org.eclipse.jface.preference.IPreferenceStore;
20
21 import org.eclipse.jface.text.BadLocationException;
22 import org.eclipse.jface.text.IDocument;
23 import org.eclipse.jface.text.rules.ICharacterScanner;
24 import org.eclipse.jface.text.rules.IToken;
25 import org.eclipse.jface.text.rules.IWordDetector;
26 import org.eclipse.jface.text.rules.SingleLineRule;
27 import org.eclipse.jface.text.rules.Token;
28 import org.eclipse.jface.text.rules.WhitespaceRule;
29 import org.eclipse.jface.text.rules.WordRule;
30
31 import org.eclipse.jdt.ui.text.IColorManager;
32 import org.eclipse.jdt.ui.text.IJavaColorConstants;
33
34 import org.eclipse.jdt.internal.ui.text.CombinedWordRule;
35 import org.eclipse.jdt.internal.ui.text.JavaCommentScanner;
36 import org.eclipse.jdt.internal.ui.text.JavaWhitespaceDetector;
37 import org.eclipse.jdt.internal.ui.text.CombinedWordRule.CharacterBuffer;
38 import org.eclipse.jdt.internal.ui.text.CombinedWordRule.WordMatcher;
39
40
43 public final class JavaDocScanner extends JavaCommentScanner {
44
45
46
49 static class HTMLCommentDetector implements IWordDetector {
50
51
54 public boolean isWordStart(char c) {
55 return (c == '<' || c == '-');
56 }
57
58
61 public boolean isWordPart(char c) {
62 return (c == '-' || c == '!' || c == '>');
63 }
64 }
65
66 class TagRule extends SingleLineRule {
67
68
71 public TagRule(IToken token) {
72 super("<", ">", token, (char) 0); }
74
75
78 public TagRule(IToken token, char escapeCharacter) {
79 super("<", ">", token, escapeCharacter); }
81
82 private IToken evaluateToken() {
83 try {
84 final String token= getDocument().get(getTokenOffset(), getTokenLength()) + ".";
86 int offset= 0;
87 char character= token.charAt(++offset);
88
89 if (character == '/')
90 character= token.charAt(++offset);
91
92 while (Character.isWhitespace(character))
93 character= token.charAt(++offset);
94
95 while (Character.isLetterOrDigit(character))
96 character= token.charAt(++offset);
97
98 while (Character.isWhitespace(character))
99 character= token.charAt(++offset);
100
101 if (offset >= 2 && token.charAt(offset) == fEndSequence[0])
102 return fToken;
103
104 } catch (BadLocationException exception) {
105 }
107 return getToken(IJavaColorConstants.JAVADOC_DEFAULT);
108 }
109
110
113 public IToken evaluate(ICharacterScanner scanner) {
114 IToken result= super.evaluate(scanner);
115 if (result == fToken)
116 return evaluateToken();
117 return result;
118 }
119 }
120
121 private static String [] fgTokenProperties= {
122 IJavaColorConstants.JAVADOC_KEYWORD,
123 IJavaColorConstants.JAVADOC_TAG,
124 IJavaColorConstants.JAVADOC_LINK,
125 IJavaColorConstants.JAVADOC_DEFAULT,
126 TASK_TAG
127 };
128
129
130 public JavaDocScanner(IColorManager manager, IPreferenceStore store, Preferences coreStore) {
131 super(manager, store, coreStore, IJavaColorConstants.JAVADOC_DEFAULT, fgTokenProperties);
132 }
133
134
141 public JavaDocScanner(IColorManager manager, IPreferenceStore store) {
142 this(manager, store, null);
143 }
144
145 public IDocument getDocument() {
146 return fDocument;
147 }
148
149
152 protected List createRules() {
153
154 List list= new ArrayList ();
155
156 Token token= getToken(IJavaColorConstants.JAVADOC_TAG);
158 list.add(new TagRule(token));
159
160
161 WordRule wordRule= new WordRule(new HTMLCommentDetector(), token);
163 wordRule.addWord("<!--", token); wordRule.addWord("--!>", token); list.add(wordRule);
166
167
168 token= getToken(IJavaColorConstants.JAVADOC_LINK);
170 list.add(new SingleLineRule("{@link", "}", token)); list.add(new SingleLineRule("{@value", "}", token));
173
174 list.add(new WhitespaceRule(new JavaWhitespaceDetector()));
176
177
178 list.addAll(super.createRules());
179 return list;
180 }
181
182
185 protected List createMatchers() {
186 List list= super.createMatchers();
187
188 final IToken token= getToken(IJavaColorConstants.JAVADOC_KEYWORD);
190 WordMatcher matcher= new CombinedWordRule.WordMatcher() {
191 public IToken evaluate(ICharacterScanner scanner, CharacterBuffer word) {
192 int length= word.length();
193 if (length > 1 && word.charAt(0) == '@') {
194 int i= 0;
195 try {
196 for (; i <= length; i++)
197 scanner.unread();
198 int c= scanner.read();
199 i--;
200 if (c == '*' || Character.isWhitespace((char)c)) {
201 scanner.unread();
202 return token;
203 }
204 } finally {
205 for (; i >= 0; i--)
206 scanner.read();
207 }
208 }
209 return Token.UNDEFINED;
210 }
211 };
212 list.add(matcher);
213
214 return list;
215 }
216 }
217
218
219 |
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