bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/formatter/CounterFormatter.java - sourceediting/webtools.sourceediting - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004 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.css.core.internal.formatter;


 import org.eclipse.jface.text.IRegion;
 import org.eclipse.wst.css.core.internal.cleanup.CSSCleanupStrategy;
 import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts;
 import org.eclipse.wst.css.core.internal.provisional.document.ICSSAttr;
 import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode;
 import org.eclipse.wst.css.core.internal.provisional.document.ICounter;
 import org.eclipse.wst.css.core.internal.provisional.preferences.CSSPreferenceHelper;
 import org.eclipse.wst.css.core.internal.util.CSSUtil;
 import org.eclipse.wst.css.core.internal.util.RegionIterator;
 import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
 import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;


 /**
  *
  */
 public class CounterFormatter extends DefaultCSSSourceFormatter {

 	private static CounterFormatter instance;

 	/**
 	 *
 	 */
 	CounterFormatter() {
 		super();
 	}

 	/**
 	 *
 	 */
 	public StringBuffer formatAttrChanged(ICSSNode node, ICSSAttr attr, boolean insert, AttrChangeContext context) {
 		StringBuffer source = new StringBuffer();
 		if (node == null || attr == null)
 			return source;

 		if (!ICounter.IDENTIFIER.equalsIgnoreCase(attr.getName()) && !ICounter.LISTSTYLE.equalsIgnoreCase(attr.getName()) && !ICounter.SEPARATOR.equalsIgnoreCase(attr.getName()))
 			return source;

 		// get region to replace
 		IndexedRegion iNode = (IndexedRegion) node;
 		context.start = iNode.getStartOffset();
 		context.end = iNode.getEndOffset();

 		CSSPreferenceHelper mgr = CSSPreferenceHelper.getInstance();

 		ICounter counter = (ICounter) node;
 		String quote = mgr.getQuoteString(node.getOwnerDocument().getModel());
 		String sep = counter.getSeparator();
 		String ident = counter.getIdentifier();
 		String style = counter.getListStyle();

 		if (ICounter.IDENTIFIER.equalsIgnoreCase(attr.getName())) {
 			if (insert)
 				ident = attr.getValue();
 			else
 				ident = "";//$NON-NLS-1$
 		}
 		else if (ICounter.LISTSTYLE.equalsIgnoreCase(attr.getName())) {
 			if (insert)
 				style = attr.getValue();
 			else
 				style = null;
 		}
 		else if (ICounter.SEPARATOR.equalsIgnoreCase(attr.getName())) {
 			if (insert)
 				sep = attr.getValue();
 			else
 				sep = null;
 		}

 		quote = CSSUtil.detectQuote(sep, quote);
 		sep = (sep == null || sep.length() == 0) ? null : (quote + sep + quote);

 		String func = (sep == null || sep.length() == 0) ? "counter(" : "counters(";//$NON-NLS-2$//$NON-NLS-1$
 		if (mgr.isPropValueUpperCase()) {
 			ident = ident.toUpperCase();
 			style = style.toUpperCase();
 			func = func.toUpperCase();
 		}
 		else {
 			ident = ident.toLowerCase();
 			style = style.toLowerCase();
 		}
 		if (sep == null || sep.length() == 0) {
 			source.append(func);
 			appendSpaceBefore(node, ident, source);
 			source.append(ident);
 		}
 		else {
 			source.append(func);
 			appendSpaceBefore(node, ident, source);
 			source.append(ident);
 			source.append(",");//$NON-NLS-1$
 			appendSpaceBefore(node, sep, source);
 			source.append(sep);
 		}

 		if (style != null && style.length() != 0) {
 			source.append(",");//$NON-NLS-1$
 			appendSpaceBefore(node, style, source);
 		}
 		source.append(")");//$NON-NLS-1$

 		/*
 		 * IStructuredDocument structuredDocument =
 		 * node.getOwnerDocument().getModel().getStructuredDocument();
 		 * ITextRegion[] regions =
 		 * getRegionsWithoutWhiteSpaces(structuredDocument, new
 		 * FormatRegion(context.start, context.end - context.start + 1)); int
 		 * commas[2]; int numComma = 0; for(int j = 0; j <regions.length; j++) {
 		 * if (regions[j].getType() == CSSRegionContexts.COMMA) {
 		 * commas[numComma++] = j; if (numComma > 1) break; } }
 		 *
 		 * if (ICounter.IDENTIFIER.equalsIgnoreCase(attr.getName())) { } else
 		 * if (ICounter.LISTSTYLE.equalsIgnoreCase(attr.getName())) { } else
 		 * if (ICounter.SEPARATOR.equalsIgnoreCase(attr.getName())) { boolean
 		 * skipSpace = false; String func = insert ? "counters(" : "counter(";
 		 * if (mgr.isPropValueUpperCase()) func = func.toUpperCase();
 		 *
 		 * for(int i=0; i <regions.length; i++) { if (regions[i].getType() ==
 		 * CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
 		 * source.append(func); else { if (numComma == 2 && commas[1] < i) {
 		 *  } else if (numComma == 1 && commas[0] < i && insert) {
 		 *  } else if (numComma == 1 && commas[0] < i && ! insert) { } else if
 		 * (numComma == 0 && insert && regions[i].getType ==
 		 * CSSRegionContexts.PARENTHESIS_CLOSE) { source.append(",");
 		 * appendSpaceBefore(node,attr.getValue(),source);
 		 * source.append(attr.getValue()); }
 		 *
 		 * if (i != 0 && !skipSpace)
 		 * appendSpaceBefore(node,regions[i],source);
 		 * source.append(decoratedPropValueRegion(regions[i])); } skipSpace =
 		 * false;
 		 *
 		 * if (regions[i].getType() ==
 		 * CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION) skipSpace = true; } }
 		 */
 		return source;
 	}

 	/**
 	 *
 	 */
 	protected void formatPre(ICSSNode node, StringBuffer source) {
 		int start = ((IndexedRegion) node).getStartOffset();
 		int end = ((IndexedRegion) node).getEndOffset();
 		CSSPreferenceHelper mgr = CSSPreferenceHelper.getInstance();
 		CSSCleanupStrategy stgy = getCleanupStrategy(node);

 		if (end > 0) { // format source
 			IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument();
 			CompoundRegion[] regions = getRegionsWithoutWhiteSpaces(structuredDocument, new FormatRegion(start, end - start), stgy);
 			boolean skipSpace = false;
 			for (int i = 0; i < regions.length; i++) {
 				if (i != 0 && !skipSpace)
 					appendSpaceBefore(node, regions[i], source);
 				skipSpace = false;
 				source.append(decoratedPropValueRegion(regions[i], stgy));
 				if (regions[i].getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
 					skipSpace = true;
 			}
 		}
 		else { // generate source
 			ICounter counter = (ICounter) node;
 			String quote = mgr.getQuoteString(node.getOwnerDocument().getModel());
 			String separator = counter.getSeparator();
 			quote = CSSUtil.detectQuote(separator, quote);
 			String sep = (separator == null || separator.length() == 0) ? null : (quote + separator + quote);
 			String ident = counter.getIdentifier();
 			String style = counter.getListStyle();
 			String func = (sep == null || sep.length() == 0) ? "counter(" : "counters(";//$NON-NLS-2$//$NON-NLS-1$
 			// normalize
 			if (ident == null)
 				ident = "";//$NON-NLS-1$
 			if (style == null)
 				style = "";//$NON-NLS-1$

 			if (mgr.isPropValueUpperCase()) {
 				ident = ident.toUpperCase();
 				style = style.toUpperCase();
 				func = func.toUpperCase();
 			}
 			else {
 				ident = ident.toLowerCase();
 				style = style.toLowerCase();
 			}
 			if (sep == null || sep.length() == 0) {
 				source.append(func);
 				appendSpaceBefore(node, ident, source);
 				source.append(ident);
 			}
 			else {
 				source.append(func);
 				appendSpaceBefore(node, ident, source);
 				source.append(ident);
 				source.append(",");//$NON-NLS-1$
 				appendSpaceBefore(node, sep, source);
 				source.append(sep);
 			}

 			if (style != null && style.length() != 0) {
 				source.append(",");//$NON-NLS-1$
 				appendSpaceBefore(node, style, source);
 			}
 			source.append(")");//$NON-NLS-1$
 		}
 	}

 	/**
 	 *
 	 */
 	protected void formatPre(ICSSNode node, IRegion region, StringBuffer source) {
 		IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument();
 		CSSCleanupStrategy stgy = getCleanupStrategy(node);

 		CompoundRegion[] regions = getRegionsWithoutWhiteSpaces(structuredDocument, region, stgy);
 		CompoundRegion[] outside = getOutsideRegions(structuredDocument, region);
 		for (int i = 0; i < regions.length; i++) {
 			if (i != 0 || needS(outside[0]))
 				appendSpaceBefore(node, regions[i], source);
 			source.append(decoratedPropValueRegion(regions[i], stgy));
 		}
 		if (needS(outside[1]) && !isIncludesPreEnd(node, region))
 			appendSpaceBefore(node, outside[1], source);
 	}

 	/**
 	 *
 	 */
 	public int getAttrInsertPos(ICSSNode node, String attrName) {
 		if (node == null || attrName == null || attrName.length() == 0)
 			return -1;

 		IndexedRegion iNode = (IndexedRegion) node;
 		if (ICounter.IDENTIFIER.equalsIgnoreCase(attrName)) {
 			ICSSAttr attr = (ICSSAttr) node.getAttributes().getNamedItem(ICounter.IDENTIFIER);
 			if (attr != null && ((IndexedRegion) attr).getEndOffset() > 0)
 				return ((IndexedRegion) attr).getStartOffset();
 			if (iNode.getEndOffset() <= 0)
 				return -1;

 			IStructuredDocumentRegion flatNode = node.getOwnerDocument().getModel().getStructuredDocument().getRegionAtCharacterOffset(iNode.getEndOffset() - 1);
 			RegionIterator it = new RegionIterator(flatNode, flatNode.getRegionAtCharacterOffset(iNode.getEndOffset() - 1));
 			while (it.hasPrev()) {
 				ITextRegion region = it.prev();
 				if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
 					return it.getStructuredDocumentRegion().getEndOffset(region);
 			}
 			return ((IndexedRegion) node).getEndOffset();
 		}
 		else if (ICounter.LISTSTYLE.equalsIgnoreCase(attrName)) {
 			ICSSAttr attr = (ICSSAttr) node.getAttributes().getNamedItem(ICounter.LISTSTYLE);
 			if (attr != null && ((IndexedRegion) attr).getEndOffset() > 0)
 				return ((IndexedRegion) attr).getStartOffset();

 			IStructuredDocumentRegion flatNode = node.getOwnerDocument().getModel().getStructuredDocument().getRegionAtCharacterOffset(iNode.getEndOffset() - 1);
 			RegionIterator it = new RegionIterator(flatNode, flatNode.getRegionAtCharacterOffset(iNode.getEndOffset() - 1));
 			while (it.hasPrev()) {
 				ITextRegion region = it.prev();
 				if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_OPERATOR)
 					return it.getStructuredDocumentRegion().getEndOffset(region);
 				else if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
 					return it.getStructuredDocumentRegion().getEndOffset(region);
 			}
 			return ((IndexedRegion) node).getEndOffset();
 		}
 		else if (ICounter.SEPARATOR.equalsIgnoreCase(attrName)) {
 			ICSSAttr attr = (ICSSAttr) node.getAttributes().getNamedItem(ICounter.SEPARATOR);
 			if (attr != null && ((IndexedRegion) attr).getEndOffset() > 0)
 				return ((IndexedRegion) attr).getStartOffset();

 			IStructuredDocumentRegion flatNode = node.getOwnerDocument().getModel().getStructuredDocument().getRegionAtCharacterOffset(iNode.getEndOffset() - 1);
 			RegionIterator it = new RegionIterator(flatNode, flatNode.getRegionAtCharacterOffset(iNode.getEndOffset() - 1));
 			boolean hasComma = false;
 			while (it.hasPrev()) {
 				ITextRegion region = it.prev();
 				if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_OPERATOR) {
 					if (!hasComma)
 						hasComma = true;
 					else
 						return it.getStructuredDocumentRegion().getEndOffset(region);
 				}
 				else if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
 					return it.getStructuredDocumentRegion().getEndOffset(region);
 			}
 			return ((IndexedRegion) node).getEndOffset();
 		}
 		else
 			return -1;
 	}

 	/**
 	 *
 	 */
 	public synchronized static CounterFormatter getInstance() {
 		if (instance == null)
 			instance = new CounterFormatter();
 		return instance;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2004 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.css.core.internal.formatter;



	import org.eclipse.jface.text.IRegion;
	import org.eclipse.wst.css.core.internal.cleanup.CSSCleanupStrategy;
	import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts;
	import org.eclipse.wst.css.core.internal.provisional.document.ICSSAttr;
	import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode;
	import org.eclipse.wst.css.core.internal.provisional.document.ICounter;
	import org.eclipse.wst.css.core.internal.provisional.preferences.CSSPreferenceHelper;
	import org.eclipse.wst.css.core.internal.util.CSSUtil;
	import org.eclipse.wst.css.core.internal.util.RegionIterator;
	import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
	import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;


	/**
	*
	*/
	public class CounterFormatter extends DefaultCSSSourceFormatter {

	private static CounterFormatter instance;

	/**
	*
	*/
	CounterFormatter() {
	super();
	}

	/**
	*
	*/
	public StringBuffer formatAttrChanged(ICSSNode node, ICSSAttr attr, boolean insert, AttrChangeContext context) {
	StringBuffer source = new StringBuffer();
	if (node == null \|\| attr == null)
	return source;

	if (!ICounter.IDENTIFIER.equalsIgnoreCase(attr.getName()) && !ICounter.LISTSTYLE.equalsIgnoreCase(attr.getName()) && !ICounter.SEPARATOR.equalsIgnoreCase(attr.getName()))
	return source;

	// get region to replace
	IndexedRegion iNode = (IndexedRegion) node;
	context.start = iNode.getStartOffset();
	context.end = iNode.getEndOffset();

	CSSPreferenceHelper mgr = CSSPreferenceHelper.getInstance();

	ICounter counter = (ICounter) node;
	String quote = mgr.getQuoteString(node.getOwnerDocument().getModel());
	String sep = counter.getSeparator();
	String ident = counter.getIdentifier();
	String style = counter.getListStyle();

	if (ICounter.IDENTIFIER.equalsIgnoreCase(attr.getName())) {
	if (insert)
	ident = attr.getValue();
	else
	ident = "";//$NON-NLS-1$
	}
	else if (ICounter.LISTSTYLE.equalsIgnoreCase(attr.getName())) {
	if (insert)
	style = attr.getValue();
	else
	style = null;
	}
	else if (ICounter.SEPARATOR.equalsIgnoreCase(attr.getName())) {
	if (insert)
	sep = attr.getValue();
	else
	sep = null;
	}

	quote = CSSUtil.detectQuote(sep, quote);
	sep = (sep == null \|\| sep.length() == 0) ? null : (quote + sep + quote);

	String func = (sep == null \|\| sep.length() == 0) ? "counter(" : "counters(";//$NON-NLS-2$//$NON-NLS-1$
	if (mgr.isPropValueUpperCase()) {
	ident = ident.toUpperCase();
	style = style.toUpperCase();
	func = func.toUpperCase();
	}
	else {
	ident = ident.toLowerCase();
	style = style.toLowerCase();
	}
	if (sep == null \|\| sep.length() == 0) {
	source.append(func);
	appendSpaceBefore(node, ident, source);
	source.append(ident);
	}
	else {
	source.append(func);
	appendSpaceBefore(node, ident, source);
	source.append(ident);
	source.append(",");//$NON-NLS-1$
	appendSpaceBefore(node, sep, source);
	source.append(sep);
	}

	if (style != null && style.length() != 0) {
	source.append(",");//$NON-NLS-1$
	appendSpaceBefore(node, style, source);
	}
	source.append(")");//$NON-NLS-1$

	/*
	* IStructuredDocument structuredDocument =
	* node.getOwnerDocument().getModel().getStructuredDocument();
	* ITextRegion[] regions =
	* getRegionsWithoutWhiteSpaces(structuredDocument, new
	* FormatRegion(context.start, context.end - context.start + 1)); int
	* commas[2]; int numComma = 0; for(int j = 0; j <regions.length; j++) {
	* if (regions[j].getType() == CSSRegionContexts.COMMA) {
	* commas[numComma++] = j; if (numComma > 1) break; } }
	*
	* if (ICounter.IDENTIFIER.equalsIgnoreCase(attr.getName())) { } else
	* if (ICounter.LISTSTYLE.equalsIgnoreCase(attr.getName())) { } else
	* if (ICounter.SEPARATOR.equalsIgnoreCase(attr.getName())) { boolean
	* skipSpace = false; String func = insert ? "counters(" : "counter(";
	* if (mgr.isPropValueUpperCase()) func = func.toUpperCase();
	*
	* for(int i=0; i <regions.length; i++) { if (regions[i].getType() ==
	* CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
	* source.append(func); else { if (numComma == 2 && commas[1] < i) {
	* } else if (numComma == 1 && commas[0] < i && insert) {
	* } else if (numComma == 1 && commas[0] < i && ! insert) { } else if
	* (numComma == 0 && insert && regions[i].getType ==
	* CSSRegionContexts.PARENTHESIS_CLOSE) { source.append(",");
	* appendSpaceBefore(node,attr.getValue(),source);
	* source.append(attr.getValue()); }
	*
	* if (i != 0 && !skipSpace)
	* appendSpaceBefore(node,regions[i],source);
	* source.append(decoratedPropValueRegion(regions[i])); } skipSpace =
	* false;
	*
	* if (regions[i].getType() ==
	* CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION) skipSpace = true; } }
	*/
	return source;
	}

	/**
	*
	*/
	protected void formatPre(ICSSNode node, StringBuffer source) {
	int start = ((IndexedRegion) node).getStartOffset();
	int end = ((IndexedRegion) node).getEndOffset();
	CSSPreferenceHelper mgr = CSSPreferenceHelper.getInstance();
	CSSCleanupStrategy stgy = getCleanupStrategy(node);

	if (end > 0) { // format source
	IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument();
	CompoundRegion[] regions = getRegionsWithoutWhiteSpaces(structuredDocument, new FormatRegion(start, end - start), stgy);
	boolean skipSpace = false;
	for (int i = 0; i < regions.length; i++) {
	if (i != 0 && !skipSpace)
	appendSpaceBefore(node, regions[i], source);
	skipSpace = false;
	source.append(decoratedPropValueRegion(regions[i], stgy));
	if (regions[i].getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
	skipSpace = true;
	}
	}
	else { // generate source
	ICounter counter = (ICounter) node;
	String quote = mgr.getQuoteString(node.getOwnerDocument().getModel());
	String separator = counter.getSeparator();
	quote = CSSUtil.detectQuote(separator, quote);
	String sep = (separator == null \|\| separator.length() == 0) ? null : (quote + separator + quote);
	String ident = counter.getIdentifier();
	String style = counter.getListStyle();
	String func = (sep == null \|\| sep.length() == 0) ? "counter(" : "counters(";//$NON-NLS-2$//$NON-NLS-1$
	// normalize
	if (ident == null)
	ident = "";//$NON-NLS-1$
	if (style == null)
	style = "";//$NON-NLS-1$

	if (mgr.isPropValueUpperCase()) {
	ident = ident.toUpperCase();
	style = style.toUpperCase();
	func = func.toUpperCase();
	}
	else {
	ident = ident.toLowerCase();
	style = style.toLowerCase();
	}
	if (sep == null \|\| sep.length() == 0) {
	source.append(func);
	appendSpaceBefore(node, ident, source);
	source.append(ident);
	}
	else {
	source.append(func);
	appendSpaceBefore(node, ident, source);
	source.append(ident);
	source.append(",");//$NON-NLS-1$
	appendSpaceBefore(node, sep, source);
	source.append(sep);
	}

	if (style != null && style.length() != 0) {
	source.append(",");//$NON-NLS-1$
	appendSpaceBefore(node, style, source);
	}
	source.append(")");//$NON-NLS-1$
	}
	}

	/**
	*
	*/
	protected void formatPre(ICSSNode node, IRegion region, StringBuffer source) {
	IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument();
	CSSCleanupStrategy stgy = getCleanupStrategy(node);

	CompoundRegion[] regions = getRegionsWithoutWhiteSpaces(structuredDocument, region, stgy);
	CompoundRegion[] outside = getOutsideRegions(structuredDocument, region);
	for (int i = 0; i < regions.length; i++) {
	if (i != 0 \|\| needS(outside[0]))
	appendSpaceBefore(node, regions[i], source);
	source.append(decoratedPropValueRegion(regions[i], stgy));
	}
	if (needS(outside[1]) && !isIncludesPreEnd(node, region))
	appendSpaceBefore(node, outside[1], source);
	}

	/**
	*
	*/
	public int getAttrInsertPos(ICSSNode node, String attrName) {
	if (node == null \|\| attrName == null \|\| attrName.length() == 0)
	return -1;

	IndexedRegion iNode = (IndexedRegion) node;
	if (ICounter.IDENTIFIER.equalsIgnoreCase(attrName)) {
	ICSSAttr attr = (ICSSAttr) node.getAttributes().getNamedItem(ICounter.IDENTIFIER);
	if (attr != null && ((IndexedRegion) attr).getEndOffset() > 0)
	return ((IndexedRegion) attr).getStartOffset();
	if (iNode.getEndOffset() <= 0)
	return -1;

	IStructuredDocumentRegion flatNode = node.getOwnerDocument().getModel().getStructuredDocument().getRegionAtCharacterOffset(iNode.getEndOffset() - 1);
	RegionIterator it = new RegionIterator(flatNode, flatNode.getRegionAtCharacterOffset(iNode.getEndOffset() - 1));
	while (it.hasPrev()) {
	ITextRegion region = it.prev();
	if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
	return it.getStructuredDocumentRegion().getEndOffset(region);
	}
	return ((IndexedRegion) node).getEndOffset();
	}
	else if (ICounter.LISTSTYLE.equalsIgnoreCase(attrName)) {
	ICSSAttr attr = (ICSSAttr) node.getAttributes().getNamedItem(ICounter.LISTSTYLE);
	if (attr != null && ((IndexedRegion) attr).getEndOffset() > 0)
	return ((IndexedRegion) attr).getStartOffset();

	IStructuredDocumentRegion flatNode = node.getOwnerDocument().getModel().getStructuredDocument().getRegionAtCharacterOffset(iNode.getEndOffset() - 1);
	RegionIterator it = new RegionIterator(flatNode, flatNode.getRegionAtCharacterOffset(iNode.getEndOffset() - 1));
	while (it.hasPrev()) {
	ITextRegion region = it.prev();
	if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_OPERATOR)
	return it.getStructuredDocumentRegion().getEndOffset(region);
	else if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
	return it.getStructuredDocumentRegion().getEndOffset(region);
	}
	return ((IndexedRegion) node).getEndOffset();
	}
	else if (ICounter.SEPARATOR.equalsIgnoreCase(attrName)) {
	ICSSAttr attr = (ICSSAttr) node.getAttributes().getNamedItem(ICounter.SEPARATOR);
	if (attr != null && ((IndexedRegion) attr).getEndOffset() > 0)
	return ((IndexedRegion) attr).getStartOffset();

	IStructuredDocumentRegion flatNode = node.getOwnerDocument().getModel().getStructuredDocument().getRegionAtCharacterOffset(iNode.getEndOffset() - 1);
	RegionIterator it = new RegionIterator(flatNode, flatNode.getRegionAtCharacterOffset(iNode.getEndOffset() - 1));
	boolean hasComma = false;
	while (it.hasPrev()) {
	ITextRegion region = it.prev();
	if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_OPERATOR) {
	if (!hasComma)
	hasComma = true;
	else
	return it.getStructuredDocumentRegion().getEndOffset(region);
	}
	else if (region.getType() == CSSRegionContexts.CSS_DECLARATION_VALUE_FUNCTION)
	return it.getStructuredDocumentRegion().getEndOffset(region);
	}
	return ((IndexedRegion) node).getEndOffset();
	}
	else
	return -1;
	}

	/**
	*
	*/
	public synchronized static CounterFormatter getInstance() {
	if (instance == null)
	instance = new CounterFormatter();
	return instance;
	}
	}