+++ /dev/null
-package net.sourceforge.phpdt.internal.ui.text;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved.
- */
-
-import java.io.IOException;
-
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.IRegion;
-import org.eclipse.jface.text.Region;
-import org.eclipse.jface.text.source.ICharacterPairMatcher;
-
-/**
- * Helper class for match pairs of characters.
- */
-public class PHPPairMatcher implements ICharacterPairMatcher {
- protected char[] fPairs;
-
- protected IDocument fDocument;
-
- protected int fOffset;
-
- protected int fStartPos;
-
- protected int fEndPos;
-
- protected int fAnchor;
-
- protected PHPCodeReader fReader = new PHPCodeReader();
-
- public PHPPairMatcher(char[] pairs) {
- fPairs = pairs;
- }
-
- /*
- * @see org.eclipse.jface.text.source.ICharacterPairMatcher#clear()
- */
- public void clear() {
- if (fReader != null) {
- try {
- fReader.close();
- } catch (IOException x) {
- // ignore
- }
- }
- }
-
- public IRegion match(IDocument document, int offset) {
-
- fOffset = offset;
-
- if (fOffset < 0)
- return null;
-
- fDocument = document;
-
- if (matchPairsAt() && fStartPos != fEndPos)
- return new Region(fStartPos, fEndPos - fStartPos + 1);
-
- return null;
- }
-
- public int getAnchor() {
- return fAnchor;
- }
-
- public void dispose() {
- fDocument = null;
- if (fReader != null) {
- try {
- fReader.close();
- } catch (IOException x) {
- // ignore
- }
- fReader = null;
- }
- }
-
- protected boolean matchPairsAt() {
-
- int i;
- int pairIndex1 = fPairs.length;
- int pairIndex2 = fPairs.length;
-
- fStartPos = -1;
- fEndPos = -1;
-
- // get the chars preceding and following the start position
- try {
-
- char prevChar = fDocument.getChar(Math.max(fOffset - 1, 0));
- char nextChar = fDocument.getChar(fOffset);
-
- // search for opening peer character next to the activation point
- for (i = 0; i < fPairs.length; i = i + 2) {
- if (nextChar == fPairs[i]) {
- fStartPos = fOffset;
- pairIndex1 = i;
- } else if (prevChar == fPairs[i]) {
- fStartPos = fOffset - 1;
- pairIndex1 = i;
- }
- }
-
- // search for closing peer character next to the activation point
- for (i = 1; i < fPairs.length; i = i + 2) {
- if (prevChar == fPairs[i]) {
- fEndPos = fOffset - 1;
- pairIndex2 = i;
- } else if (nextChar == fPairs[i]) {
- fEndPos = fOffset;
- pairIndex2 = i;
- }
- }
-
- if (fEndPos > -1) {
- fAnchor = RIGHT;
- fStartPos = searchForOpeningPeer(fEndPos,
- fPairs[pairIndex2 - 1], fPairs[pairIndex2], fDocument);
- if (fStartPos > -1)
- return true;
- else
- fEndPos = -1;
- } else if (fStartPos > -1) {
- fAnchor = LEFT;
- fEndPos = searchForClosingPeer(fStartPos, fPairs[pairIndex1],
- fPairs[pairIndex1 + 1], fDocument);
- if (fEndPos > -1)
- return true;
- else
- fStartPos = -1;
- }
-
- } catch (BadLocationException x) {
- } catch (IOException x) {
- }
-
- return false;
- }
-
- protected int searchForClosingPeer(int offset, int openingPeer,
- int closingPeer, IDocument document) throws IOException {
-
- fReader.configureForwardReader(document, offset + 1, document
- .getLength(), true, true);
-
- int stack = 1;
- int c = fReader.read();
- while (c != PHPCodeReader.EOF) {
- if (c == openingPeer && c != closingPeer)
- stack++;
- else if (c == closingPeer)
- stack--;
-
- if (stack == 0)
- return fReader.getOffset();
-
- c = fReader.read();
- }
-
- return -1;
- }
-
- protected int searchForOpeningPeer(int offset, int openingPeer,
- int closingPeer, IDocument document) throws IOException {
-
- fReader.configureBackwardReader(document, offset, true, true);
-
- int stack = 1;
- int c = fReader.read();
- while (c != PHPCodeReader.EOF) {
- if (c == closingPeer && c != openingPeer)
- stack++;
- else if (c == openingPeer)
- stack--;
-
- if (stack == 0)
- return fReader.getOffset();
-
- c = fReader.read();
- }
-
- return -1;
- }
-}
\ No newline at end of file
git://secure.phpeclipse.com / phpeclipse.git / blobdiff