1 files changed, 345 insertions, 0 deletions
diff --git a/examples/org.eclipse.compare.examples.xml/src/org/eclipse/compare/examples/xml/AttributesImpl.java b/examples/org.eclipse.compare.examples.xml/src/org/eclipse/compare/examples/xml/AttributesImpl.java
new file mode 100644
index 000000000..a1cbc8e3e
--- /dev/null
+++ b/examples/org.eclipse.compare.examples.xml/src/org/eclipse/compare/examples/xml/AttributesImpl.java
@@ -0,0 +1,345 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 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.examples.xml;
+
+import org.xml.sax.Attributes;
+
+/**
+ * An Attributes implementation that can perform more operations
+ * than the attribute list helper supplied with the standard SAX2
+ * distribution.
+ */
+public class AttributesImpl implements Attributes {
+
+	/** Head node. */
+	private ListNode fHead;
+
+	/** Tail node. */
+	private ListNode fTail;
+
+	/** Length. */
+	private int fLength;
+
+
+	/* Returns the number of attributes. */
+	@Override
+	public int getLength() {
+		return fLength;
+	}
+
+	/* Returns the index of the specified attribute. */
+	@Override
+	public int getIndex(String raw) {
+		ListNode place= fHead;
+		int index= 0;
+		while (place != null) {
+			if (place.raw.equals(raw)) {
+				return index;
+			}
+			index++;
+			place= place.next;
+		}
+		return -1;
+	}
+
+	/* Returns the index of the specified attribute. */
+	@Override
+	public int getIndex(String uri, String local) {
+		ListNode place= fHead;
+		int index= 0;
+		while (place != null) {
+			if (place.uri.equals(uri) && place.local.equals(local)) {
+				return index;
+			}
+			index++;
+			place= place.next;
+		}
+		return -1;
+	}
+
+	/* Returns the attribute URI by index. */
+	@Override
+	public String getURI(int index) {
+
+		ListNode node= getListNodeAt(index);
+		return node != null ? node.uri : null;
+	}
+
+	/* Returns the attribute local name by index. */
+	@Override
+	public String getLocalName(int index) {
+
+		ListNode node= getListNodeAt(index);
+		return node != null ? node.local : null;
+	}
+
+	/* Returns the attribute raw name by index. */
+	@Override
+	public String getQName(int index) {
+
+		ListNode node= getListNodeAt(index);
+		return node != null ? node.raw : null;
+
+	}
+
+	/* Returns the attribute type by index. */
+	@Override
+	public String getType(int index) {
+
+		ListNode node= getListNodeAt(index);
+		return (node != null) ? node.type : null;
+	}
+
+	/* Returns the attribute type by uri and local. */
+	@Override
+	public String getType(String uri, String local) {
+
+		ListNode node= getListNode(uri, local);
+		return (node != null) ? node.type : null;
+
+	}
+
+	/* Returns the attribute type by raw name. */
+	@Override
+	public String getType(String raw) {
+
+		ListNode node= getListNode(raw);
+		return (node != null) ? node.type : null;
+	}
+
+	/* Returns the attribute value by index. */
+	@Override
+	public String getValue(int index) {
+
+		ListNode node= getListNodeAt(index);
+		return (node != null) ? node.value : null;
+	}
+
+	/* Returns the attribute value by uri and local. */
+	@Override
+	public String getValue(String uri, String local) {
+
+		ListNode node= getListNode(uri, local);
+		return (node != null) ? node.value : null;
+	}
+
+	/* Returns the attribute value by raw name. */
+	@Override
+	public String getValue(String raw) {
+
+		ListNode node= getListNode(raw);
+		return (node != null) ? node.value : null;
+	}
+
+	/* Adds an attribute. */
+	public void addAttribute(String raw, String type, String value) {
+		addAttribute(null, null, raw, type, value);
+	}
+
+	/* Adds an attribute. */
+	public void addAttribute(
+		String uri,
+		String local,
+		String raw,
+		String type,
+		String value) {
+
+		ListNode node= new ListNode(uri, local, raw, type, value);
+		if (fLength == 0) {
+			fHead= node;
+		} else {
+			fTail.next= node;
+		}
+		fTail= node;
+		fLength++;
+	}
+
+	/* Inserts an attribute. */
+	public void insertAttributeAt(
+		int index,
+		String raw,
+		String type,
+		String value) {
+		insertAttributeAt(index, null, null, raw, type, value);
+	}
+
+	/* Inserts an attribute. */
+	public void insertAttributeAt(
+		int index,
+		String uri,
+		String local,
+		String raw,
+		String type,
+		String value) {
+
+		// if list is empty, add attribute
+		if (fLength == 0 || index >= fLength) {
+			addAttribute(uri, local, raw, type, value);
+			return;
+		}
+
+		// insert at beginning of list
+		ListNode node= new ListNode(uri, local, raw, type, value);
+		if (index < 1) {
+			node.next= fHead;
+			fHead= node;
+		} else {
+			ListNode prev= getListNodeAt(index - 1);
+			node.next= prev.next;
+			prev.next= node;
+		}
+		fLength++;
+	}
+
+	/* Removes an attribute. */
+	public void removeAttributeAt(int index) {
+
+		if (fLength == 0)
+			return;
+
+		if (index == 0) {
+			fHead= fHead.next;
+			if (fHead == null) {
+				fTail= null;
+			}
+			fLength--;
+		} else {
+			ListNode prev= getListNodeAt(index - 1);
+			ListNode node= getListNodeAt(index);
+			if (node != null) {
+				prev.next= node.next;
+				if (node == fTail) {
+					fTail= prev;
+				}
+				fLength--;
+			}
+		}
+	}
+
+	/* Removes the specified attribute. */
+	public void removeAttribute(String raw) {
+		removeAttributeAt(getIndex(raw));
+	}
+
+	/* Removes the specified attribute. */
+	public void removeAttribute(String uri, String local) {
+		removeAttributeAt(getIndex(uri, local));
+	}
+
+	/* Returns the node at the specified index. */
+	private ListNode getListNodeAt(int i) {
+
+		for (ListNode place= fHead; place != null; place= place.next) {
+			if (--i == -1) {
+				return place;
+			}
+		}
+		return null;
+	}
+
+	/* Returns the first node with the specified uri and local. */
+	public ListNode getListNode(String uri, String local) {
+
+		if (uri != null && local != null) {
+			ListNode place= fHead;
+			while (place != null) {
+				if (place.uri != null
+					&& place.local != null
+					&& place.uri.equals(uri)
+					&& place.local.equals(local)) {
+					return place;
+				}
+				place= place.next;
+			}
+		}
+		return null;
+	}
+
+	/* Returns the first node with the specified raw name. */
+	private ListNode getListNode(String raw) {
+
+		if (raw != null) {
+			for (ListNode place= fHead; place != null; place= place.next) {
+				if (place.raw != null && place.raw.equals(raw)) {
+					return place;
+				}
+			}
+		}
+
+		return null;
+	}
+
+	/* Returns a string representation of this object. */
+	@Override
+	public String toString() {
+		StringBuffer str= new StringBuffer();
+
+		str.append('[');
+		str.append("len="); //$NON-NLS-1$
+		str.append(fLength);
+		str.append(", {"); //$NON-NLS-1$
+		for (ListNode place= fHead; place != null; place= place.next) {
+			str.append(place.toString());
+			if (place.next != null) {
+				str.append(", "); //$NON-NLS-1$
+			}
+		}
+		str.append("}]"); //$NON-NLS-1$
+
+		return str.toString();
+	}
+
+	/*
+	 * An attribute node.
+	 */
+	static class ListNode {
+
+		/** Attribute uri. */
+		public String uri;
+
+		/** Attribute local. */
+		public String local;
+
+		/** Attribute raw. */
+		public String raw;
+
+		/** Attribute type. */
+		public String type;
+
+		/** Attribute value. */
+		public String value;
+
+		/** Next node. */
+		public ListNode next;
+
+		/* Constructs a list node. */
+		public ListNode(
+			String uri0,
+			String local0,
+			String raw0,
+			String type0,
+			String value0) {
+
+			this.uri= uri0;
+			this.local= local0;
+			this.raw= raw0;
+			this.type= type0;
+			this.value= value0;
+
+		}
+
+		/* Returns string representation of this object. */
+		@Override
+		public String toString() {
+			return raw != null ? raw : local;
+		}
+	}
+}