1 files changed, 0 insertions, 202 deletions
diff --git a/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/DocLineComparator.java b/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/DocLineComparator.java
deleted file mode 100644
index 8686bbbb3..000000000
--- a/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/DocLineComparator.java
+++ /dev/null
@@ -1,202 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2009 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
- *******************************************************************************/
-package org.eclipse.compare.internal;
-
-import org.eclipse.jface.text.*;
-import org.eclipse.compare.contentmergeviewer.ITokenComparator;
-import org.eclipse.compare.rangedifferencer.IRangeComparator;
-
-/**
- * Implements the <code>IRangeComparator</code> interface for lines in a document.
- * A <code>DocLineComparator</code> is used as the input for the <code>RangeDifferencer</code>
- * engine to perform a line oriented compare on documents.
- * <p>
- * A <code>DocLineComparator</code> doesn't know anything about line separators because
- * its notion of lines is solely defined in the underlying <code>IDocument</code>.
- */
-public class DocLineComparator implements ITokenComparator {
-
-	private IDocument fDocument;
-	private int fLineOffset;
-	private int fLineCount;
-	private int fLength;
-	private boolean fIgnoreWhiteSpace;
-
-	/**
-	 * Creates a <code>DocLineComparator</code> for the given document range.
-	 * ignoreWhiteSpace controls whether comparing lines (in method
-	 * <code>rangesEqual<code>) should ignore whitespace.
-	 *
-	 * @param document the document from which the lines are taken
-	 * @param region if non-<code>null</code> only lines within this range are taken
-	 * @param ignoreWhiteSpace if <code>true</code> white space is ignored when comparing lines
-	 */
-	public DocLineComparator(IDocument document, IRegion region,
-			boolean ignoreWhiteSpace) {
-		fDocument = document;
-		fIgnoreWhiteSpace = ignoreWhiteSpace;
-
-		fLineOffset = 0;
-		if (region != null) {
-			fLength = region.getLength();
-			int start = region.getOffset();
-			try {
-				fLineOffset = fDocument.getLineOfOffset(start);
-			} catch (BadLocationException ex) {
-				// silently ignored
-			}
-
-			if (fLength == 0) {
-				// optimization, empty documents have one line
-				fLineCount = 1;
-			} else {
-				int endLine = fDocument.getNumberOfLines();
-				try {
-					endLine = fDocument.getLineOfOffset(start + fLength);
-				} catch (BadLocationException ex) {
-					// silently ignored
-				}
-				fLineCount = endLine - fLineOffset + 1;
-			}
-		} else {
-			fLength = document.getLength();
-			fLineCount = fDocument.getNumberOfLines();
-		}
-	}
-
-	/**
-	 * Returns the number of lines in the document.
-	 *
-	 * @return number of lines
-	 */
-	public int getRangeCount() {
-		return fLineCount;
-	}
-
-	/* (non Javadoc)
-	 * see ITokenComparator.getTokenStart
-	 */
-	public int getTokenStart(int line) {
-		try {
-			IRegion r= fDocument.getLineInformation(fLineOffset + line);
-			return r.getOffset();
-		} catch (BadLocationException ex) {
-			return fDocument.getLength();
-		}
-	}
-
-	/* (non Javadoc)
-	 * Returns the length of the given line.
-	 * see ITokenComparator.getTokenLength
-	 */
-	public int getTokenLength(int line) {
-		return getTokenStart(line+1) - getTokenStart(line);
-	}
-
-	/**
-	 * Returns <code>true</code> if a line given by the first index
-	 * matches a line specified by the other <code>IRangeComparator</code> and index.
-	 *
-	 * @param thisIndex the number of the line within this range comparator
-	 * @param otherComparator the range comparator to compare this with
-	 * @param otherIndex the number of the line within the other comparator
-	 * @return <code>true</code> if the lines are equal
-	 */
-	public boolean rangesEqual(int thisIndex, IRangeComparator otherComparator, int otherIndex) {
-
-		if (otherComparator != null && otherComparator.getClass() == getClass()) {
-			DocLineComparator other= (DocLineComparator) otherComparator;
-
-			if (fIgnoreWhiteSpace) {
-				String s1= extract(thisIndex);
-				String s2= other.extract(otherIndex);
-				//return s1.trim().equals(s2.trim());
-				return compare(s1, s2);
-			}
-
-			int tlen= getTokenLength(thisIndex);
-			int olen= other.getTokenLength(otherIndex);
-			if (tlen == olen) {
-				String s1= extract(thisIndex);
-				String s2= other.extract(otherIndex);
-				return s1.equals(s2);
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * Aborts the comparison if the number of tokens is too large.
-	 * 
-	 * @param length a number on which to base the decision whether to return
-	 * 	<code>true</code> or <code>false</code>
-	 * @param maxLength another number on which to base the decision whether to return
-	 *	<code>true</code> or <code>false</code>
-	 * @param other the other <code>IRangeComparator</code> to compare with
-	 * @return <code>true</code> to avoid a too lengthy range comparison
-	 */
-	public boolean skipRangeComparison(int length, int maxLength, IRangeComparator other) {
-		return false;
-	}
-		
-	//---- private methods
-	
-	/**
-	 * Extract a single line from the underlying document without the line separator.
-	 *
-	 * @param line the number of the line to extract
-	 * @return the contents of the line as a String
-	 */
-	private String extract(int line) {
-		if (line < fLineCount) {
-			try {
-				IRegion r= fDocument.getLineInformation(fLineOffset + line);
-				return fDocument.get(r.getOffset(), r.getLength());
-			} catch(BadLocationException e) {
-				// silently ignored
-			}
-		}
-		return ""; //$NON-NLS-1$
-	}
-	
-	private boolean compare(String s1, String s2) {
-		int l1= s1.length();
-		int l2= s2.length();
-		int c1= 0, c2= 0;
-		int i1= 0, i2= 0;
-		
-		while (c1 != -1) {
-			
-			c1= -1;
-			while (i1 < l1) {
-				char c= s1.charAt(i1++);
-				if (! Character.isWhitespace(c)) {
-					c1= c;
-					break;
-				}
-			}
-			
-			c2= -1;
-			while (i2 < l2) {
-				char c= s2.charAt(i2++);
-				if (! Character.isWhitespace(c)) {
-					c2= c;
-					break;
-				}
-			}
-				
-			if (c1 != c2)
-				return false;
-		}
-		return true;
-	}
-}
-