Mercurial > projects > dwt2
diff org.eclipse.jface.text/src/org/eclipse/jface/text/rules/WhitespaceRule.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/org.eclipse.jface.text/src/org/eclipse/jface/text/rules/WhitespaceRule.d Sat Mar 14 18:23:29 2009 +0100 @@ -0,0 +1,87 @@ +/******************************************************************************* + * Copyright (c) 2000, 2006 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ + + +module org.eclipse.jface.text.rules.WhitespaceRule; + +import org.eclipse.jface.text.rules.FastPartitioner; // packageimport +import org.eclipse.jface.text.rules.ITokenScanner; // packageimport +import org.eclipse.jface.text.rules.Token; // packageimport +import org.eclipse.jface.text.rules.RuleBasedScanner; // packageimport +import org.eclipse.jface.text.rules.EndOfLineRule; // packageimport +import org.eclipse.jface.text.rules.WordRule; // packageimport +import org.eclipse.jface.text.rules.WordPatternRule; // packageimport +import org.eclipse.jface.text.rules.IPredicateRule; // packageimport +import org.eclipse.jface.text.rules.DefaultPartitioner; // packageimport +import org.eclipse.jface.text.rules.NumberRule; // packageimport +import org.eclipse.jface.text.rules.SingleLineRule; // packageimport +import org.eclipse.jface.text.rules.PatternRule; // packageimport +import org.eclipse.jface.text.rules.RuleBasedDamagerRepairer; // packageimport +import org.eclipse.jface.text.rules.ICharacterScanner; // packageimport +import org.eclipse.jface.text.rules.IRule; // packageimport +import org.eclipse.jface.text.rules.DefaultDamagerRepairer; // packageimport +import org.eclipse.jface.text.rules.IToken; // packageimport +import org.eclipse.jface.text.rules.IPartitionTokenScanner; // packageimport +import org.eclipse.jface.text.rules.MultiLineRule; // packageimport +import org.eclipse.jface.text.rules.RuleBasedPartitioner; // packageimport +import org.eclipse.jface.text.rules.RuleBasedPartitionScanner; // packageimport +import org.eclipse.jface.text.rules.BufferedRuleBasedScanner; // packageimport +import org.eclipse.jface.text.rules.IWhitespaceDetector; // packageimport + +import java.lang.all; + + +import org.eclipse.core.runtime.Assert; + + +/** + * An implementation of <code>IRule</code> capable of detecting whitespace. + * A whitespace rule uses a whitespace detector in order to find out which + * characters are whitespace characters. + * + * @see IWhitespaceDetector + */ +public class WhitespaceRule : IRule { + + /** The whitespace detector used by this rule */ + protected IWhitespaceDetector fDetector; + + /** + * Creates a rule which, with the help of an + * whitespace detector, will return a whitespace + * token when a whitespace is detected. + * + * @param detector the rule's whitespace detector, may not be <code>null</code> + */ + public this(IWhitespaceDetector detector) { + Assert.isNotNull(cast(Object)detector); + fDetector= detector; + } + + /* + * @see IRule#evaluate(ICharacterScanner) + */ + public IToken evaluate(ICharacterScanner scanner) { + int c= scanner.read(); + if (fDetector.isWhitespace(cast(char) c)) { + do { + c= scanner.read(); + } while (fDetector.isWhitespace(cast(char) c)); + scanner.unread(); + return Token.WHITESPACE; + } + + scanner.unread(); + return Token.UNDEFINED; + } +}