intial source from http://www.sf.net/projects/wdte

[phpeclipse.git] / net.sourceforge.phpeclipse.ui / src / net / sourceforge / phpeclipse / ui / text / rules / FlatNode.java

diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/ui/text/rules/FlatNode.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/ui/text/rules/FlatNode.java
new file mode 100644 (file)
index 0000000..93c6452
--- /dev/null
+++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/ui/text/rules/FlatNode.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2003-2004 Widespace, OU and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://solareclipse.sourceforge.net/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     Igor Malinin - initial contribution
+ * 
+ * $Id: FlatNode.java,v 1.1 2004-09-02 18:26:29 jsurfer Exp $
+ */
+
+package net.sourceforge.phpeclipse.ui.text.rules;
+
+/**
+ * @author Igor Malinin
+ */
+public class FlatNode {
+
+       /** Content-type of the node */
+       public final String type;
+
+       /** Flat offset of the node */
+       public int offset;
+
+       /** Flat length of the node */
+       public int length;
+
+       public FlatNode(String type) {
+               this.type = type;
+       }
+
+       /**
+        * Checks whether the given offset is inside of this position's text range.
+        * 
+        * @param offset
+        *            the offset to check
+        * @return <code>true</code> if offset is inside of this position
+        */
+       public boolean includes(int offset) {
+               return (this.offset <= offset && offset < this.offset + length);
+       }
+
+       /**
+        * Checks whether the intersection of the given text range and the text
+        * range represented by this position is empty or not.
+        * 
+        * @param offset
+        *            the offset of the range to check
+        * @param length
+        *            the length of the range to check
+        * @return <code>true</code> if intersection is not empty
+        */
+       public boolean overlapsWith(int offset, int length) {
+               int end = offset + length;
+               int thisEnd = this.offset + this.length;
+
+               if (length > 0) {
+                       if (this.length > 0) {
+                               return (this.offset < end && offset < thisEnd);
+                       }
+                       return (offset <= this.offset && this.offset < end);
+               }
+
+               if (this.length > 0) {
+                       return (this.offset <= offset && offset < thisEnd);
+               }
+
+               return (this.offset == offset);
+       }
+
+       /*
+        * @see java.lang.Object#toString()
+        */
+       public String toString() {
+               return "FlatNode[" + type + ", " + offset + ", " + length + "]";
+       }
+}