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comparison org.eclipse.jface.text/src/org/eclipse/jface/text/rules/WhitespaceRule.d @ 12:bc29606a740c

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Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
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11:43904fec5dca 12:bc29606a740c
1 /*******************************************************************************
2 * Copyright (c) 2000, 2006 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13
14
15 module org.eclipse.jface.text.rules.WhitespaceRule;
16
17 import org.eclipse.jface.text.rules.FastPartitioner; // packageimport
18 import org.eclipse.jface.text.rules.ITokenScanner; // packageimport
19 import org.eclipse.jface.text.rules.Token; // packageimport
20 import org.eclipse.jface.text.rules.RuleBasedScanner; // packageimport
21 import org.eclipse.jface.text.rules.EndOfLineRule; // packageimport
22 import org.eclipse.jface.text.rules.WordRule; // packageimport
23 import org.eclipse.jface.text.rules.WordPatternRule; // packageimport
24 import org.eclipse.jface.text.rules.IPredicateRule; // packageimport
25 import org.eclipse.jface.text.rules.DefaultPartitioner; // packageimport
26 import org.eclipse.jface.text.rules.NumberRule; // packageimport
27 import org.eclipse.jface.text.rules.SingleLineRule; // packageimport
28 import org.eclipse.jface.text.rules.PatternRule; // packageimport
29 import org.eclipse.jface.text.rules.RuleBasedDamagerRepairer; // packageimport
30 import org.eclipse.jface.text.rules.ICharacterScanner; // packageimport
31 import org.eclipse.jface.text.rules.IRule; // packageimport
32 import org.eclipse.jface.text.rules.DefaultDamagerRepairer; // packageimport
33 import org.eclipse.jface.text.rules.IToken; // packageimport
34 import org.eclipse.jface.text.rules.IPartitionTokenScanner; // packageimport
35 import org.eclipse.jface.text.rules.MultiLineRule; // packageimport
36 import org.eclipse.jface.text.rules.RuleBasedPartitioner; // packageimport
37 import org.eclipse.jface.text.rules.RuleBasedPartitionScanner; // packageimport
38 import org.eclipse.jface.text.rules.BufferedRuleBasedScanner; // packageimport
39 import org.eclipse.jface.text.rules.IWhitespaceDetector; // packageimport
40
41 import java.lang.all;
42
43
44 import org.eclipse.core.runtime.Assert;
45
46
47 /**
48 * An implementation of <code>IRule</code> capable of detecting whitespace.
49 * A whitespace rule uses a whitespace detector in order to find out which
50 * characters are whitespace characters.
51 *
52 * @see IWhitespaceDetector
53 */
54 public class WhitespaceRule : IRule {
55
56 /** The whitespace detector used by this rule */
57 protected IWhitespaceDetector fDetector;
58
59 /**
60 * Creates a rule which, with the help of an
61 * whitespace detector, will return a whitespace
62 * token when a whitespace is detected.
63 *
64 * @param detector the rule's whitespace detector, may not be <code>null</code>
65 */
66 public this(IWhitespaceDetector detector) {
67 Assert.isNotNull(cast(Object)detector);
68 fDetector= detector;
69 }
70
71 /*
72 * @see IRule#evaluate(ICharacterScanner)
73 */
74 public IToken evaluate(ICharacterScanner scanner) {
75 int c= scanner.read();
76 if (fDetector.isWhitespace(cast(char) c)) {
77 do {
78 c= scanner.read();
79 } while (fDetector.isWhitespace(cast(char) c));
80 scanner.unread();
81 return Token.WHITESPACE;
82 }
83
84 scanner.unread();
85 return Token.UNDEFINED;
86 }
87 }