diff options
Diffstat (limited to 'bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/parser/CSSSourceParser.java')
| -rw-r--r-- | bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/parser/CSSSourceParser.java | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/parser/CSSSourceParser.java b/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/parser/CSSSourceParser.java deleted file mode 100644 index 831336f3ba..0000000000 --- a/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/parser/CSSSourceParser.java +++ /dev/null @@ -1,255 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2004, 2006 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.parser; - -import java.io.Reader; -import java.io.StringReader; -import java.util.ArrayList; -import java.util.List; - -import org.eclipse.wst.css.core.internal.Logger; -import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts; -import org.eclipse.wst.sse.core.internal.ltk.parser.RegionParser; -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.ITextRegionList; -import org.eclipse.wst.sse.core.internal.util.Debug; - - -public class CSSSourceParser implements RegionParser { - public static final int MODE_STYLESHEET = 0; - public static final int MODE_DECLARATION = 1; - public static final int MODE_DECLARATION_VALUE = 2; - - private long fStartTime; - private long fStopTime; - private ICSSTokenizer fTokenizer; - - public void setParserMode(int mode) { - int initialState; - int bufsize; - switch (mode) { - case MODE_STYLESHEET : - initialState = CSSTokenizer.YYINITIAL; - bufsize = CSSTokenizer.BUFFER_SIZE_NORMAL; - break; - case MODE_DECLARATION : - initialState = CSSTokenizer.ST_DECLARATION; - bufsize = CSSTokenizer.BUFFER_SIZE_NORMAL; - break; - case MODE_DECLARATION_VALUE : - initialState = CSSTokenizer.ST_DECLARATION_PRE_VALUE; - bufsize = CSSTokenizer.BUFFER_SIZE_SMALL; - break; - default : - return; - } - if (0 < initialState) { - ICSSTokenizer tokenizer = getTokenizer(); - tokenizer.setInitialState(initialState); - tokenizer.setInitialBufferSize(bufsize); - } - } - - public IStructuredDocumentRegion getDocumentRegions() { - IStructuredDocumentRegion headnode = null; - if (headnode == null) { - if (Debug.perfTest) { - fStartTime = System.currentTimeMillis(); - } - headnode = parseNodes(); - if (Debug.perfTest) { - fStopTime = System.currentTimeMillis(); - System.out.println(" -- creating nodes of IStructuredDocument -- "); //$NON-NLS-1$ - System.out.println(" Time parse and init all regions: " + (fStopTime - fStartTime) + " (msecs)"); //$NON-NLS-2$//$NON-NLS-1$ - // System.out.println(" for " + fRegions.size() + " - // Regions");//$NON-NLS-2$//$NON-NLS-1$ - System.out.println(" and " + _countNodes(headnode) + " Nodes"); //$NON-NLS-2$//$NON-NLS-1$ - } - } - return headnode; - } - - public List getRegions() { - IStructuredDocumentRegion headNode = null; - if (!getTokenizer().isEOF()) { - headNode = getDocumentRegions(); - // throw new IllegalStateException("parsing has not finished"); - } - // for memory recovery, we assume if someone - // requests all regions, we can reset our big - // memory consuming objects - // but the new "getRegions" method is then more expensive. - // I don't think its used much, though. - List localRegionsList = getRegions(headNode); - primReset(); - return localRegionsList; - } - - /** - * Method getRegions. - * - * @param headNode - * @return List - */ - protected List getRegions(IStructuredDocumentRegion headNode) { - List allRegions = new ArrayList(); - IStructuredDocumentRegion currentNode = headNode; - while (currentNode != null) { - ITextRegionList nodeRegions = currentNode.getRegions(); - for (int i = 0; i < nodeRegions.size(); i++) { - allRegions.add(nodeRegions.get(i)); - } - currentNode = currentNode.getNext(); - } - return allRegions; - } - - public void reset(Reader reader) { - primReset(); - getTokenizer().reset(reader, 0); - } - - public void reset(Reader reader, int offset) { - reset(reader); - } - - public void reset(String input) { - reset(new StringReader(input)); - } - - public void reset(String input, int offset) { - reset(input); - } - - public RegionParser newInstance() { - return new CSSSourceParser(); - } - - private IStructuredDocumentRegion parseNodes() { - // regions are initially reported as complete offsets within the - // scanned input - // they are adjusted here to be indexes from the currentNode's start - // offset - IStructuredDocumentRegion headNode = null; - IStructuredDocumentRegion lastNode = null; - ITextRegion region = null; - IStructuredDocumentRegion currentNode = null; - String type = null; - String currentRegionType = null; - - while ((region = getNextRegion()) != null) { - type = region.getType(); - if (mustBeStart(type, currentRegionType) && currentNode != null) { - currentNode.setEnded(true); - } - - if ((currentNode != null && currentNode.isEnded()) || currentNode == null) { - if (currentNode != null && !currentNode.isEnded()) { - currentNode.setEnded(true); - } - lastNode = currentNode; - currentNode = createStructuredDocumentRegion(type); - currentRegionType = type; - if (lastNode != null) { - lastNode.setNext(currentNode); - } - currentNode.setPrevious(lastNode); - currentNode.setStart(region.getStart()); - } - - currentNode.addRegion(region); - currentNode.setLength(region.getStart() + region.getLength() - currentNode.getStart()); - region.adjustStart(-currentNode.getStart()); - - if (mustBeEnd(type)) { - currentNode.setEnded(true); - } - - if (headNode == null && currentNode != null) { - headNode = currentNode; - } - } - - if (currentNode != null && !currentNode.isEnded()) { - currentNode.setEnded(true); - } - - primReset(); - return headNode; - } - - private IStructuredDocumentRegion createStructuredDocumentRegion(String type) { - return CSSStructuredDocumentRegionFactory.createRegion(type); - } - /** - * currently public but may be made default access protected in future. - */ - protected boolean mustBeStart(String type, String docRegionType) { - return ((type == CSSRegionContexts.CSS_DELIMITER || type == CSSRegionContexts.CSS_LBRACE || type == CSSRegionContexts.CSS_RBRACE || type == CSSRegionContexts.CSS_IMPORT || type == CSSRegionContexts.CSS_PAGE || type == CSSRegionContexts.CSS_MEDIA || type == CSSRegionContexts.CSS_FONT_FACE || type == CSSRegionContexts.CSS_CHARSET || type == CSSRegionContexts.CSS_ATKEYWORD || type == CSSRegionContexts.CSS_DECLARATION_PROPERTY || type == CSSRegionContexts.CSS_DECLARATION_DELIMITER) || (docRegionType == CSSRegionContexts.CSS_DECLARATION_PROPERTY && type == CSSRegionContexts.CSS_S) || (!CSSRegionUtil.isSelectorBegginingType(docRegionType) && (type == CSSRegionContexts.CSS_SELECTOR_ELEMENT_NAME || type == CSSRegionContexts.CSS_SELECTOR_UNIVERSAL || type == CSSRegionContexts.CSS_SELECTOR_PSEUDO || type == CSSRegionContexts.CSS_SELECTOR_CLASS || type == CSSRegionContexts.CSS_SELECTOR_ID || type == CSSRegionContexts.CSS_SELECTOR_ATTRIBUTE_START))); - } - /** - * currently public but may be made default access protected in future. - */ - protected boolean mustBeEnd(String type) { - return (type == CSSRegionContexts.CSS_DELIMITER || type == CSSRegionContexts.CSS_LBRACE || type == CSSRegionContexts.CSS_RBRACE || type == CSSRegionContexts.CSS_DECLARATION_DELIMITER); - } - - private ITextRegion getNextRegion() { - ITextRegion region = null; - try { - region = getTokenizer().getNextToken(); - // DMW: 2/12/03 Removed state - // if (region != null) { - // fRegions.add(region); - // } - return region; - } - catch (StackOverflowError e) { - Logger.logException(getClass().getName() + ": input could not be parsed correctly at position " + getTokenizer().getOffset(), e); //$NON-NLS-1$ - throw e; - } - catch (Exception e) { - Logger.logException(getClass().getName() + ": input could not be parsed correctly at position " + getTokenizer().getOffset() + " (" + e.getLocalizedMessage() + ")", e); //$NON-NLS-3$//$NON-NLS-2$//$NON-NLS-1$ - } - return null; - } - - private void primReset() { - - getTokenizer().reset(new char[0]); - } - /** - * currently public but may be made default access protected in future. - */ - public ICSSTokenizer getTokenizer() { - if (fTokenizer == null) { - fTokenizer = new CSSTokenizer(); - } - return fTokenizer; - } - - - /** - * This is a simple utility to count nodes. Used only for debug - * statements. - */ - private int _countNodes(IStructuredDocumentRegion nodes) { - int result = 0; - IStructuredDocumentRegion countNode = nodes; - while (countNode != null) { - result++; - countNode = countNode.getNext(); - } - return result; - } - -} |