| /******************************************************************************* |
| * Copyright (c) 2004, 2008 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.wst.html.core.internal.validate; |
| |
| |
| |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; |
| import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion; |
| import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionCollection; |
| import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode; |
| import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext; |
| |
| final class FMUtil { |
| |
| public final static int SEG_NONE = 0; |
| public final static int SEG_WHOLE_TAG = 1; |
| public final static int SEG_START_TAG = 2; |
| public final static int SEG_END_TAG = 3; |
| public final static int SEG_START_TAG_NAME = 4; |
| public final static int SEG_END_TAG_NAME = 5; |
| |
| /** |
| */ |
| private FMUtil() { |
| super(); |
| } |
| |
| /** |
| */ |
| public final static Segment getSegment(IDOMNode target, int segType) { |
| if (target == null) |
| return new Segment(0, 0); |
| Segment seg = null; |
| IStructuredDocumentRegion startTag = null; |
| IStructuredDocumentRegion endTag = null; |
| switch (segType) { |
| case SEG_WHOLE_TAG : |
| startTag = target.getFirstStructuredDocumentRegion(); |
| if (startTag != null) { |
| endTag = target.getLastStructuredDocumentRegion(); |
| seg = new Segment(startTag, endTag); |
| } |
| else { |
| int startOffset = target.getStartOffset(); |
| int endOffset = target.getEndOffset(); |
| seg = new Segment(startOffset, endOffset - startOffset); |
| } |
| break; |
| case SEG_START_TAG : |
| startTag = target.getStartStructuredDocumentRegion(); |
| if (startTag != null) { |
| seg = new Segment(startTag); |
| } |
| else { |
| seg = new Segment(target.getStartOffset(), 1); |
| } |
| break; |
| case SEG_END_TAG : |
| endTag = target.getEndStructuredDocumentRegion(); |
| if (endTag != null) { |
| seg = new Segment(endTag); |
| } |
| else { |
| seg = new Segment(target.getEndOffset(), 1); |
| } |
| break; |
| case SEG_START_TAG_NAME : |
| startTag = target.getStartStructuredDocumentRegion(); |
| if (startTag != null) { |
| ITextRegion nameRegion = getNameRegion(startTag); |
| if (nameRegion != null) { |
| seg = new Segment(startTag.getStartOffset(nameRegion), nameRegion.getTextLength()); |
| } |
| } |
| if (seg == null) { |
| seg = getSegment(target, SEG_START_TAG); |
| } |
| break; |
| case SEG_END_TAG_NAME : |
| endTag = target.getEndStructuredDocumentRegion(); |
| if (endTag != null) { |
| ITextRegion nameRegion = getNameRegion(endTag); |
| if (nameRegion != null) { |
| seg = new Segment(endTag.getStartOffset(nameRegion), nameRegion.getTextLength()); |
| } |
| } |
| if (seg == null) { |
| seg = getSegment(target, SEG_END_TAG); |
| } |
| break; |
| case SEG_NONE : |
| default : |
| return new Segment(0, 0); |
| } |
| return seg; |
| } |
| |
| private static ITextRegion getNameRegion(ITextRegionCollection containerRegion) { |
| ITextRegionList regions = containerRegion.getRegions(); |
| ITextRegion nameRegion = null; |
| for (int i = 0; i < regions.size(); i++) { |
| ITextRegion r = regions.get(i); |
| if (r.getType() == DOMRegionContext.XML_TAG_NAME) { |
| nameRegion = r; |
| break; |
| } |
| } |
| return nameRegion ; |
| } |
| |
| } |