1 files changed, 58 insertions, 0 deletions
diff --git a/org.eclipse.text/src/org/eclipse/jface/text/ConfigurableLineTracker.java b/org.eclipse.text/src/org/eclipse/jface/text/ConfigurableLineTracker.java
new file mode 100644
index 00000000000..817bd9cdf29
--- /dev/null
+++ b/org.eclipse.text/src/org/eclipse/jface/text/ConfigurableLineTracker.java
@@ -0,0 +1,58 @@
+package org.eclipse.jface.text;
+
+/*
+ * (c) Copyright IBM Corp. 2000, 2001.
+ * All Rights Reserved.
+ */
+
+
+
+/**
+ * Standard implementation of a generic <code>ILineTracker</code>.
+ * The line tracker can be configured with the set of legal line delimiters.
+ * Line delimiters are unconstrainted. The line delimiters are used to
+ * compute the tracker's line structure. In the case of overlapping line delimiters,
+ * the longest line delimiter is given precedence of the shorter ones.<p>
+ * This class is not intended to be subclassed.
+ */
+public class ConfigurableLineTracker extends AbstractLineTracker {
+	
+	
+	/** The strings which are considered being the line delimiter */
+	private String[] fDelimiters;
+	/** A predefined delimiter info which is always reused as return value */
+	private DelimiterInfo fDelimiterInfo= new DelimiterInfo(); 
+	
+	
+	/**
+	 * Creates a standard line tracker for the given line delimiters.
+	 *
+	 * @param legalLineDelimiters the tracker's legal line delimiters,
+	 *		may not be <code>null</code> and must be longer than 0
+	 */
+	public ConfigurableLineTracker(String[] legalLineDelimiters) {
+		Assert.isTrue(legalLineDelimiters != null && legalLineDelimiters.length > 0);
+		fDelimiters= legalLineDelimiters;
+	}
+	
+	/*
+	 * @see ILineDelimiter@getLegalLineDelimiters
+	 */
+	public String[] getLegalLineDelimiters() {
+		return fDelimiters;
+	}
+
+	/*
+	 * @see AbstractLineTracker#nextDelimiterInfo(String, int)
+	 */
+	protected DelimiterInfo nextDelimiterInfo(String text, int offset) {
+		int[] info= TextUtilities.indexOf(fDelimiters, text, offset);
+		if (info[0] == -1)
+			return null;
+			
+		fDelimiterInfo.delimiterIndex= info[0];
+		fDelimiterInfo.delimiter= fDelimiters[info[1]];
+		fDelimiterInfo.delimiterLength= fDelimiterInfo.delimiter.length();
+		return fDelimiterInfo;
+	}
+}