--- /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: 1.1 $
+ */
+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.*;
+
+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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