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Diffstat (limited to 'bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/text/CSSStructuredDocumentReParser.java')
| -rw-r--r-- | bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/text/CSSStructuredDocumentReParser.java | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/text/CSSStructuredDocumentReParser.java b/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/text/CSSStructuredDocumentReParser.java deleted file mode 100644 index 1558f82f24..0000000000 --- a/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/text/CSSStructuredDocumentReParser.java +++ /dev/null @@ -1,360 +0,0 @@ -/******************************************************************************* - * 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.text; - -import org.eclipse.jface.text.BadLocationException; -import org.eclipse.jface.text.IRegion; -import org.eclipse.wst.css.core.internal.Logger; -import org.eclipse.wst.css.core.internal.parser.CSSRegionUtil; -import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts; -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.events.StructuredDocumentEvent; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredTextReParser; -import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion; -import org.eclipse.wst.sse.core.internal.text.StructuredDocumentReParser; - - -/** - * This class provides a centralized place to put "reparsing" logic. This is - * the logic that reparses the text incrementally, as a user types in new - * characters, or DOM nodes are inserted or deleted. Note: it is not a thread - * safe class. - */ -public class CSSStructuredDocumentReParser extends StructuredDocumentReParser { - - class ReparseRange { - ReparseRange() { - reset(); - } - - ReparseRange(int start, int end) { - fRangeStart = start; - fRangeEnd = end; - } - - void setStart(int start) { - fRangeStart = start; - } - - void setEnd(int end) { - fRangeEnd = end; - } - - int getStart() { - return fRangeStart; - } - - int getEnd() { - return fRangeEnd; - } - - boolean isValid() { - return (0 < fRangeEnd - fRangeStart) ? true : false; - } - - void reset() { - fRangeStart = Integer.MAX_VALUE; - fRangeEnd = 0; - } - - void expand(ReparseRange range) { - if (range == null || !range.isValid()) { - return; - } - int start = range.getStart(); - if (start < fRangeStart) { - fRangeStart = start; - } - int end = range.getEnd(); - if (fRangeEnd < end) { - fRangeEnd = end; - } - } - - private int fRangeStart; - private int fRangeEnd; - } - - /** - * - */ - public CSSStructuredDocumentReParser() { - super(); - } - - /** - * - */ - // public StructuredDocumentEvent - // checkForCrossStructuredDocumentRegionBoundryCases2() { - // StructuredDocumentEvent result = specialPositionUpdate(fStart, fStart + - // fLengthToReplace - 1); - // if (result == null) { - // result = checkInsideBrace(); - // } - // return result; - // } - protected StructuredDocumentEvent checkForCrossStructuredDocumentRegionSyntax() { - int checkStart = fStart; - int checkEnd = fStart + fLengthToReplace - 1; - IStructuredDocumentRegion endRegion = fStructuredDocument.getRegionAtCharacterOffset(checkEnd); - if (endRegion != null) { - checkEnd = endRegion.getEndOffset(); - } - - ReparseRange range = new ReparseRange(checkStart, checkEnd); - - range.expand(getUpdateRangeForDelimiter(range.getStart(), range.getEnd())); - range.expand(getUpdateRangeForUnknownRegion(range.getStart(), range.getEnd())); - - range.expand(getUpdateRangeForQuotes(range.getStart(), range.getEnd())); - range.expand(getUpdateRangeForComments(range.getStart(), range.getEnd())); - range.expand(getUpdateRangeForBraces(range.getStart(), range.getEnd())); - - StructuredDocumentEvent result; - - result = checkInsideBrace(range.getStart(), range.getEnd()); - - if (result == null) { - result = reparse(range.getStart(), range.getEnd()); - } - - return result; - } - - private ReparseRange getUpdateRangeForUnknownRegion(int start, int end) { - int newStart = start; - RegionIterator iterator = new RegionIterator(fStructuredDocument, start - 1); - if (iterator.hasPrev()) { - iterator.prev(); // skip myself - } - while (iterator.hasPrev()) { - ITextRegion region = iterator.prev(); - if (region != null && region.getType() == CSSRegionContexts.CSS_UNKNOWN) { - newStart = iterator.getStructuredDocumentRegion().getStartOffset(region); - } - else { - break; - } - } - - if (start != newStart) { - return new ReparseRange(newStart, end); - } - - return null; - } - - private ReparseRange getUpdateRangeForDelimiter(int start, int end) { - if (dirtyStart != null && dirtyStart.getStart() < start) { - start = dirtyStart.getStart(); - } - IStructuredDocumentRegion docRegion = fStructuredDocument.getRegionAtCharacterOffset(start); - if (docRegion == null) { - return null; - } - if (docRegion.getType() == CSSRegionContexts.CSS_DELIMITER) { - IStructuredDocumentRegion prevRegion = docRegion.getPrevious(); - if (prevRegion != null) { - return new ReparseRange(prevRegion.getStart(), end); - } - } - - return null; - } - - private ReparseRange getUpdateRangeForQuotes(int start, int end) { - ReparseRange range = new ReparseRange(); - - range.expand(getUpdateRangeForPair(start, end, "\"", "\"")); //$NON-NLS-2$//$NON-NLS-1$ - range.expand(getUpdateRangeForPair(start, end, "\'", "\'")); //$NON-NLS-2$//$NON-NLS-1$ - - return (range.isValid()) ? range : null; - } - - private ReparseRange getUpdateRangeForComments(int start, int end) { - ReparseRange range = new ReparseRange(); - - range.expand(getUpdateRangeForPair(start, end, "/*", "*/")); //$NON-NLS-2$//$NON-NLS-1$ - range.expand(getUpdateRangeForPair(start, end, "<%", "%>")); //$NON-NLS-2$//$NON-NLS-1$ - - return (range.isValid()) ? range : null; - } - - private ReparseRange getUpdateRangeForBraces(int start, int end) { - ReparseRange range = new ReparseRange(); - - range.expand(getUpdateRangeForPair(start, end, "[", "]")); //$NON-NLS-2$//$NON-NLS-1$ - range.expand(getUpdateRangeForPair(start, end, "(", ")")); //$NON-NLS-2$//$NON-NLS-1$ - range.expand(getUpdateRangeForPair(start, end, "{", "}")); //$NON-NLS-2$//$NON-NLS-1$ - - return (range.isValid()) ? range : null; - } - - private StructuredDocumentEvent checkInsideBrace(int start, int end) { - StructuredDocumentEvent result = null; - IStructuredDocumentRegion region = fStructuredDocument.getRegionAtCharacterOffset(start); - if (region == null) { - return null; - } - boolean bDeclaration = false; - String type = region.getType(); - if (CSSRegionUtil.isDeclarationType(type) || type == CSSRegionContexts.CSS_LBRACE || type == CSSRegionContexts.CSS_RBRACE) { - bDeclaration = true; - } - if (!bDeclaration) { - IStructuredDocumentRegion prevRegion = CSSUtil.findPreviousSignificantNode(region); - if (prevRegion != null) { - type = prevRegion.getType(); - if (CSSRegionUtil.isDeclarationType(type) || type == CSSRegionContexts.CSS_LBRACE) { - bDeclaration = true; - } - } - } - if (!bDeclaration) { - IStructuredDocumentRegion nextRegion = CSSUtil.findNextSignificantNode(region); - if (nextRegion != null) { - type = nextRegion.getType(); - if (CSSRegionUtil.isDeclarationType(type) || type == CSSRegionContexts.CSS_RBRACE) { - bDeclaration = true; - } - } - } - - if (bDeclaration) { - IStructuredDocumentRegion startRegion = findRuleStart(region); - if (startRegion != null) { - IStructuredDocumentRegion endRegion = fStructuredDocument.getRegionAtCharacterOffset(end); - if (endRegion != null) { - result = reparse(startRegion, endRegion); - } - } - } - return result; - } - - private IStructuredDocumentRegion findRuleStart(IStructuredDocumentRegion startRegion) { - IStructuredDocumentRegion region = startRegion; - // find '{' - while (region != null && region.getType() != CSSRegionContexts.CSS_LBRACE) { - region = region.getPrevious(); - } - // if (region == startRegion) { - // return null; - // } - // else - if (region != null) { // '{' is found - region = region.getPrevious(); - if (isLeadingDeclarationType(region.getType())) { - return region; - } - } - return null; - } - - private boolean isLeadingDeclarationType(String type) { - return (type == CSSRegionContexts.CSS_PAGE || type == CSSRegionContexts.CSS_FONT_FACE || CSSRegionUtil.isSelectorType(type)); - } - - // public StructuredDocumentEvent - // checkForCrossStructuredDocumentRegionBoundryCases() { - // return specialPositionUpdate(fStart, fStart + fLengthToReplace - 1); - // } - /** - * - */ - private ReparseRange getUpdateRangeForPair(int start, int end, String opener, String closer) { - StringBuffer deletionBuf = new StringBuffer(); - StringBuffer insertionBuf = new StringBuffer(); - int quoteLen = Math.max(opener.length(), closer.length()); - if (1 < quoteLen) { - /** - * ex) opener = "ABC", closer = "XYZ" model: ABCDEF.......UVWXYZ - * deletion: CDEF.......UVWX pre/post: AB / YZ - */ - int addStart = start - (quoteLen - 1); - if (0 <= addStart) { - String addStr = fStructuredDocument.get(addStart, quoteLen - 1); - deletionBuf.append(addStr); - insertionBuf.append(addStr); - } - deletionBuf.append(fDeletedText); - insertionBuf.append(fChanges); - if (end + (quoteLen - 1) < fStructuredDocument.getLength()) { - String addStr = fStructuredDocument.get(end + 1, quoteLen - 1); - deletionBuf.append(addStr); - insertionBuf.append(addStr); - } - } - else { - deletionBuf.append(fDeletedText); - insertionBuf.append(fChanges); - } - String deletion = deletionBuf.toString(); - String insertion = insertionBuf.toString(); - - int rangeStart = start; - int rangeEnd = end; - - if (0 <= deletion.indexOf(opener) || 0 <= deletion.indexOf(closer) || 0 <= insertion.indexOf(opener) || 0 <= insertion.indexOf(closer)) { - int s, e; - try { - if (start <= fStructuredDocument.getLength()) { - IRegion startRegion = getFindReplaceDocumentAdapter().find(start - 1, opener, false, false, false, false); - if (startRegion != null) { - s = startRegion.getOffset(); - } - else { - s = -1; - } - } - else { - s = -1; - } - if (end < fStructuredDocument.getLength() - 1) { - IRegion endRegion = getFindReplaceDocumentAdapter().find(end + 1, closer, true, false, false, false); - if (endRegion != null) { - e = endRegion.getOffset(); - } - else { - e = -1; - } - } - else { - e = -1; - } - } - catch (BadLocationException ex) { - Logger.logException(ex); - return null; - } - if (0 <= s) { - rangeStart = Math.min(rangeStart, s); - } - if (0 <= e) { - rangeEnd = Math.max(rangeEnd, e); - } - } - - if (rangeStart < start || end < rangeEnd) { - return new ReparseRange(rangeStart, rangeEnd); - } - else { - return null; - } - } - - public IStructuredTextReParser newInstance() { - return new CSSStructuredDocumentReParser(); - } -}
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