+++ /dev/null
-/**
- * This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- * Created on 05.03.2003
- *
- * @author Stefan Langer (musk)
- * @version $Revision: 1.3 $
- */
-package net.sourceforge.phpeclipse.phpeditor.php;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Map;
-
-import net.sourceforge.phpdt.internal.ui.text.IPHPPartitions;
-
-import org.eclipse.jface.text.Assert;
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.ITypedRegion;
-import org.eclipse.jface.text.rules.ICharacterScanner;
-import org.eclipse.jface.text.rules.IPartitionTokenScanner;
-import org.eclipse.jface.text.rules.IToken;
-import org.eclipse.jface.text.rules.Token;
-
-/**
- *
- */
-public class HTMLPartitionScanner implements IPartitionTokenScanner {
- private static final boolean DEBUG = false;
-
- private boolean fInString = false;
-
- private boolean fInDoubString = false;
-
- private IDocument fDocument = null;
-
- private int fOffset = -1;
-
- private String fContentType = IPHPPartitions.HTML;
-
- private String fPrevContentType = IPHPPartitions.HTML;
-
- private boolean partitionBorder = false;
-
- private int fTokenOffset;
-
- private int fEnd = -1;
-
- private int fLength;
-
- private int fCurrentLength;
-
- private int fFileType;
-
- private Map tokens = new HashMap();
-
- public HTMLPartitionScanner() {
- this(IPHPPartitions.PHP_FILE);
- }
-
- public HTMLPartitionScanner(int fileType) {
- this.tokens.put(IPHPPartitions.HTML, new Token(IPHPPartitions.HTML));
- this.tokens.put(IPHPPartitions.HTML_MULTILINE_COMMENT, new Token(
- IPHPPartitions.HTML_MULTILINE_COMMENT));
-
- this.tokens
- .put(IPHPPartitions.SMARTY, new Token(IPHPPartitions.SMARTY));
- this.tokens.put(IPHPPartitions.SMARTY_MULTILINE_COMMENT, new Token(
- IPHPPartitions.SMARTY_MULTILINE_COMMENT));
-
- this.tokens.put(IDocument.DEFAULT_CONTENT_TYPE, new Token(
- IDocument.DEFAULT_CONTENT_TYPE));
- fFileType = fileType;
- }
-
- private IToken getToken(String type) {
- fLength = fCurrentLength;
- if (DEBUG) {
-
- try {
- if (fLength <= 0) {
- int line = fDocument.getLineOfOffset(fOffset);
- System.err.println("Error at "
- + line
- + " offset:"
- + String.valueOf(fOffset
- - fDocument.getLineOffset(line)));
- }
- } catch (BadLocationException e) { // should never happen
- // TODO Write stacktrace to log
- e.printStackTrace();
- }
- }
- Assert.isTrue(fLength > 0, "Partition length <= 0!");
- fCurrentLength = 0;
- // String can never cross partition borders so reset string detection
- fInString = false;
- fInDoubString = false;
- IToken token = (IToken) this.tokens.get(type);
- Assert.isNotNull(token, "Token for type \"" + type + "\" not found!");
- if (DEBUG) {
- System.out.println("Partition: fTokenOffset=" + fTokenOffset
- + " fContentType=" + type + " fLength=" + fLength);
- }
- return token;
- }
-
- /*
- * (non-Javadoc)
- *
- * @see org.eclipse.jface.text.rules.IPartitionTokenScanner#setPartialRange(org.eclipse.jface.text.IDocument,
- * int, int, java.lang.String, int)
- */
- public void setPartialRange(IDocument document, int offset, int length,
- String contentType, int partitionOffset) {
- if (DEBUG) {
- System.out.println("*****");
- System.out.println("PartialRange: contentType=" + contentType
- + " partitionOffset=" + partitionOffset);
- }
-
- try {
- if (partitionOffset > -1) {
- partitionBorder = false;
- // because of strings we have to parse the whole partition
- this.setRange(document, partitionOffset, offset
- - partitionOffset + length);
- // sometimes we get a wrong partition so we retrieve the
- // partition
- // directly from the document
- fContentType = fDocument.getContentType(partitionOffset);
- } else
- this.setRange(document, offset, length);
-
- } catch (BadLocationException e) {
- // should never happen
- // TODO print stack trace to log
- // fall back just scan the whole document again
- this.setRange(document, 0, fDocument.getLength());
- }
-
- }
-
- /*
- * (non-Javadoc)
- *
- * @see org.eclipse.jface.text.rules.ITokenScanner#getTokenLength()
- */
- public int getTokenLength() {
- return fLength;
- }
-
- /*
- * (non-Javadoc)
- *
- * @see org.eclipse.jface.text.rules.ITokenScanner#getTokenOffset()
- */
- public int getTokenOffset() {
- return fTokenOffset;
- }
-
- /*
- * (non-Javadoc)
- *
- * @see org.eclipse.jface.text.rules.ITokenScanner#nextToken()
- */
- public IToken nextToken() {
- int c;
-
- // check if we are not allready at the end of the
- // file
- if ((c = read()) == ICharacterScanner.EOF) {
- partitionBorder = false;
- return Token.EOF;
- } else
- unread();
-
- if (partitionBorder) {
- fTokenOffset = fOffset;
- partitionBorder = false;
- }
-
- while ((c = read()) != ICharacterScanner.EOF) {
- switch (c) {
- case '<':
- if (checkPattern(new char[] { '!', '-', '-' })) { // return
- // previouse
- // partition
- if (fContentType != IPHPPartitions.HTML_MULTILINE_COMMENT
- && fCurrentLength > 4) {
- unread(4);
- IToken token = getToken(fContentType);
- fContentType = IPHPPartitions.HTML_MULTILINE_COMMENT;
- return token;
- } else
- fContentType = IPHPPartitions.HTML_MULTILINE_COMMENT;
-
- fTokenOffset = fOffset - 4;
- fCurrentLength = 4;
- }
- break;
- case '-':
- if (fContentType == IPHPPartitions.HTML_MULTILINE_COMMENT
- && checkPattern(new char[] { '-', '>' })) {
- fContentType = IPHPPartitions.HTML;
- partitionBorder = true;
- return getToken(IPHPPartitions.HTML_MULTILINE_COMMENT);
- }
- break;
- case '{': // SMARTY code starts here ?
- if (fFileType == IPHPPartitions.SMARTY_FILE) {
- if ((c = read()) == '*') {
- if (DEBUG) {
- System.out.println("SMARTYDOC_TOKEN start "
- + fTokenOffset + " fContentType="
- + fContentType + " fLength=" + fLength
- + " fOffset=" + fOffset
- + " fCurrentLength=" + fCurrentLength);
- }
- if (fContentType != IPHPPartitions.SMARTY_MULTILINE_COMMENT
- && fCurrentLength > 2) {
- // SMARTY doc code starts here
- unread(2);
- IToken token = getToken(fContentType);
- fContentType = IPHPPartitions.SMARTY_MULTILINE_COMMENT;
- return token;
- // } else if (fContentType ==
- // IPHPPartitionScannerConstants.HTML && fOffset ==
- // 2) {
- // fContentType =
- // IPHPPartitionScannerConstants.SMARTY_MULTILINE_COMMENT;
- } else { // if (fContentType ==
- // IPHPPartitionScannerConstants.SMARTY_MULTILINE_COMMENT)
- // {
- fContentType = IPHPPartitions.SMARTY_MULTILINE_COMMENT;
- fTokenOffset = fOffset - 2;
- fCurrentLength = 2;
- }
- break;
- }
- if (DEBUG) {
- System.out.println("SMARTY_TOKEN start " + fTokenOffset
- + " fContentType=" + fContentType + " fLength="
- + fLength + " fOffset=" + fOffset);
- }
- if (c != ICharacterScanner.EOF) {
- unread();
- }
- if (fContentType != IPHPPartitions.SMARTY
- && fCurrentLength > 1) {
- unread(1);
- IToken token = getToken(fContentType);
- fContentType = IPHPPartitions.SMARTY;
- return token;
- // } else if (fContentType ==
- // IPHPPartitionScannerConstants.HTML && fOffset==1) {
- // fContentType = IPHPPartitionScannerConstants.SMARTY;
- } else {
- fContentType = IPHPPartitions.SMARTY;
- fTokenOffset = fOffset - 1;
- fCurrentLength = 1;
- }
- }
- break;
- case '}': // SMARTY code ends here ?
- if (fFileType == IPHPPartitions.SMARTY_FILE
- && fContentType == IPHPPartitions.SMARTY) {
- if (DEBUG) {
- System.out.println("SMARTY_TOKEN end " + fTokenOffset
- + " fContentType=" + fContentType + " fLength="
- + fLength + " fOffset=" + fOffset);
- }
- fContentType = IPHPPartitions.HTML;
- partitionBorder = true;
- return getToken(IPHPPartitions.SMARTY);
- }
- break;
- // case '/' :
- // if (!isInString(IPHPPartitions.PHP_PARTITIONING) && (c = read())
- // == '*') { // MULTINE COMMENT JAVASCRIPT, CSS, PHP
- // if (fContentType == IPHPPartitions.PHP_PARTITIONING &&
- // fCurrentLength > 2) {
- // unread(2);
- // IToken token = getToken(fContentType);
- // fContentType = IPHPPartitions.PHP_PHPDOC_COMMENT;
- // return token;
- // } else if (fContentType == IPHPPartitions.PHP_PHPDOC_COMMENT) {
- // fTokenOffset = fOffset - 2;
- // fCurrentLength = 2;
- // }
- //
- // } else if (!isInString(IPHPPartitions.PHP_PARTITIONING) && c !=
- // ICharacterScanner.EOF)
- // unread();
- // break;
- case '*':
- if (fFileType == IPHPPartitions.SMARTY_FILE
- && (c = read()) == '}') {
- if (DEBUG) {
- System.out.println("SMARTYDOC_TOKEN end "
- + fTokenOffset + " fContentType="
- + fContentType + " fLength=" + fLength
- + " fOffset=" + fOffset);
- }
- if (fContentType == IPHPPartitions.SMARTY_MULTILINE_COMMENT) {
- fContentType = IPHPPartitions.HTML;
- partitionBorder = true;
- return getToken(IPHPPartitions.SMARTY_MULTILINE_COMMENT);
- }
- }
- break;
- case '\'':
- if (!fInDoubString)
- fInString = !fInString;
- break;
- case '"':
- // toggle String mode
- if (!fInString)
- fInDoubString = !fInDoubString;
- break;
- }
- } // end of file reached but we have to return the
- // last partition.
- return getToken(fContentType);
- }
-
- /*
- * (non-Javadoc)
- *
- * @see org.eclipse.jface.text.rules.ITokenScanner#setRange(org.eclipse.jface.text.IDocument,
- * int, int)
- */
- public void setRange(IDocument document, int offset, int length) {
- if (DEBUG) {
- System.out.println("SET RANGE: offset=" + offset + " length="
- + length);
- }
-
- fDocument = document;
- fOffset = offset;
- fTokenOffset = offset;
- fCurrentLength = 0;
- fLength = 0;
- fEnd = fOffset + length;
- fInString = false;
- fInDoubString = false;
- fContentType = IPHPPartitions.HTML;
- // String[] prev = getPartitionStack(offset);
- }
-
- private int read() {
- try {
- if (fOffset < fEnd) {
- fCurrentLength++;
- return fDocument.getChar(fOffset++);
- }
- return ICharacterScanner.EOF;
- } catch (BadLocationException e) {
- // should never happen
- // TODO write stacktrace to log
- fOffset = fEnd;
- return ICharacterScanner.EOF;
- }
- }
-
- private void unread() {
- --fOffset;
- --fCurrentLength;
- }
-
- private void unread(int num) {
- fOffset -= num;
- fCurrentLength -= num;
- }
-
- private boolean checkPattern(char[] pattern) {
- return checkPattern(pattern, false);
- }
-
- /**
- * Check if next character sequence read from document is equals to the
- * provided pattern. Pattern is read from left to right until the first
- * character read doesn't match. If this happens all read characters are
- * unread.
- *
- * @param pattern
- * The pattern to check.
- * @return <code>true</code> if pattern is equals else returns
- * <code>false</code>.
- */
- private boolean checkPattern(char[] pattern, boolean ignoreCase) {
- int prevOffset = fOffset;
- int prevLength = fCurrentLength;
- for (int i = 0; i < pattern.length; i++) {
- int c = read();
-
- if (c == ICharacterScanner.EOF
- || !letterEquals(c, pattern[i], ignoreCase)) {
- fOffset = prevOffset;
- fCurrentLength = prevLength;
- return false;
- }
- }
-
- return true;
- }
-
- private boolean letterEquals(int test, char letter, boolean ignoreCase) {
- if (test == letter)
- return true;
- else if (ignoreCase && Character.isLowerCase(letter)
- && test == Character.toUpperCase(letter))
- return true;
- else if (ignoreCase && Character.isUpperCase(letter)
- && test == Character.toLowerCase(letter))
- return true;
-
- return false;
- }
-
- /**
- * Checks wether the offset is in a <code>String</code> and the specified
- * contenttype is the current content type. Strings are delimited, mutual
- * exclusive, by a " or by a '.
- *
- * @param contentType
- * The contenttype to check.
- * @return <code>true</code> if the current offset is in a string else
- * returns false.
- */
- private boolean isInString(String contentType) {
- if (fContentType == contentType)
- return (fInString || fInDoubString);
- else
- return false;
- }
-
- /**
- * Returns the previouse partition stack for the given offset.
- *
- * @param offset
- * The offset to return the previouse partitionstack for.
- *
- * @return The stack as a string array.
- */
- private String[] getPartitionStack(int offset) {
- ArrayList types = new ArrayList();
- int tmpOffset = 0;
- try {
- ITypedRegion region = fDocument.getPartition(offset);
- tmpOffset = region.getOffset();
- while (tmpOffset - 1 > 0) {
- region = fDocument.getPartition(tmpOffset - 1);
- tmpOffset = region.getOffset();
- types.add(0, region.getType());
- }
- } catch (BadLocationException e) {
- if (DEBUG) {
- e.printStackTrace();
- }
- }
-
- String[] retVal = new String[types.size()];
-
- retVal = (String[]) types.toArray(retVal);
- return retVal;
- }
-
-}
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