diff options
Diffstat (limited to 'bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/parser/regions/AttributeValueRegion.java')
| -rw-r--r-- | bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/parser/regions/AttributeValueRegion.java | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/parser/regions/AttributeValueRegion.java b/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/parser/regions/AttributeValueRegion.java deleted file mode 100644 index 7fbbbbf353..0000000000 --- a/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/parser/regions/AttributeValueRegion.java +++ /dev/null @@ -1,162 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 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 - * Jens Lukowski/Innoopract - initial renaming/restructuring - * - *******************************************************************************/ -package org.eclipse.wst.xml.core.internal.parser.regions; - -import org.eclipse.wst.sse.core.internal.provisional.events.RegionChangedEvent; -import org.eclipse.wst.sse.core.internal.provisional.events.StructuredDocumentEvent; -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.util.Debug; -import org.eclipse.wst.sse.core.internal.util.Utilities; -import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext; - - -public class AttributeValueRegion implements ITextRegion { - // specify correct type - static private final String fType = DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE; - private int fLength; - private int fStart; - private int fTextLength; - - public AttributeValueRegion() { - super(); - } - - public AttributeValueRegion(int start, int textLength, int length) { - this(); - fStart = start; - fTextLength = textLength; - fLength = length; - } - - public void adjustLength(int i) { - fLength += i; - } - - public void adjustStart(int i) { - fStart += i; - } - - public void adjustTextLength(int i) { - fTextLength += 1; - } - - public void equatePositions(ITextRegion region) { - fStart = region.getStart(); - fLength = region.getLength(); - fTextLength = region.getTextLength(); - } - - public int getEnd() { - return fStart + fLength; - } - - public int getLength() { - return fLength; - } - - public int getStart() { - return fStart; - } - - public int getTextEnd() { - return fStart + fTextLength; - } - - public int getTextLength() { - return fTextLength; - } - - public String getType() { - return fType; - } - - public String toString() { - return RegionToStringUtil.toString(this); - } - - public StructuredDocumentEvent updateRegion(Object requester, IStructuredDocumentRegion parent, String changes, int requestStart, int lengthToReplace) { - RegionChangedEvent result = null; - // if the region is an easy type (e.g. attribute value), - // and the requested changes are all - // alphanumeric, then make the change here locally. - // (This can obviously be made more sophisticated as the need arises, - // but should - // always follow this pattern.) - if (Debug.debugStructuredDocument) { - System.out.println("\t\tContextRegion::updateModel"); //$NON-NLS-1$ - System.out.println("\t\t\tregion type is " + fType); //$NON-NLS-1$ - } - boolean canHandle = false; - // note: we'll always handle deletes from these - // regions ... if its already that region, - // deleting something from it won't change its - // type. (remember, the calling program needs - // to insure we are not called, if not all contained - // on one region. - if ((changes == null) || (changes.length() == 0)) { - // delete case - // We can not do the quick delete, if - // if all the text in a region is to be deleted. - // Or, if the delete starts in the white space region. - // In these cases, a reparse is needed. - // Minor note, we use textEnd-start since it always - // less than or equal to end-start. This might - // cause us to miss a few cases we could have handled, - // but will prevent us from trying to handle funning cases - // involving whitespace. - if ((fStart >= getTextEnd()) || (Math.abs(lengthToReplace) >= getTextEnd() - getStart())) { - canHandle = false; - } else { - canHandle = true; - } - } else { - if ((RegionUpdateRule.canHandleAsWhiteSpace(this, parent, changes, requestStart, lengthToReplace)) || RegionUpdateRule.canHandleAsLetterOrDigit(this, parent, changes, requestStart, lengthToReplace)) { - canHandle = true; - } else { - canHandle = false; - } - } - if (canHandle) { - // at this point, we still have the old region. We won't create a - // new instance, we'll just update the one we have, by changing - // its end postion, - // The parent flatnode, upon return, has responsibility - // for updating sibling regions. - // and in turn, the structuredDocument itself has responsibility - // for - // updating the text store and down stream flatnodes. - if (Debug.debugStructuredDocument) { - System.out.println("change handled by region"); //$NON-NLS-1$ - } - int lengthDifference = Utilities.calculateLengthDifference(changes, lengthToReplace); - // Note: we adjust both end and text end, because for any change - // that is in only the trailing whitespace region, we should not - // do a quick change, - // so 'canHandle' should have been false for those case. - // TO_DO_FUTURE: cache value of canHandleAsWhiteSpace from above - // If we are handling as whitespace, there is no need to increase - // the text length, only - // the total length is changing. - if (!RegionUpdateRule.canHandleAsWhiteSpace(this, parent, changes, requestStart, lengthToReplace)) { - fTextLength += lengthDifference; - } - // update length (and end) after above check for white space, - // since - // it looks to determine if at end of region. - fLength += lengthDifference; - result = new RegionChangedEvent(parent.getParentDocument(), requester, parent, this, changes, requestStart, lengthToReplace); - } - return result; - } -} |