-/**********************************************************************
-Copyright (c) 2000, 2002 IBM Corp. and others.
-All rights reserved. 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
-
-Contributors:
- IBM Corporation - Initial implementation
- Klaus Hartlage - www.eclipseproject.de
-**********************************************************************/
+/**
+ * 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: 1.24 $
+ */
package net.sourceforge.phpeclipse.phpeditor.php;
-import java.io.CharArrayWriter;
import java.util.ArrayList;
-import java.util.List;
+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.IPredicateRule;
+import org.eclipse.jface.text.rules.IPartitionTokenScanner;
import org.eclipse.jface.text.rules.IToken;
-import org.eclipse.jface.text.rules.IWordDetector;
-import org.eclipse.jface.text.rules.MultiLineRule;
-import org.eclipse.jface.text.rules.RuleBasedPartitionScanner;
import org.eclipse.jface.text.rules.Token;
-import org.eclipse.jface.text.rules.WordRule;
/**
- * This scanner recognizes the JavaDoc comments and Java multi line comments.
+ *
*/
-public class PHPPartitionScanner extends RuleBasedPartitionScanner {
-
- private final static String SKIP = "__skip"; //$NON-NLS-1$
- public final static String HTML_MULTILINE_COMMENT = "__html_multiline_comment"; //$NON-NLS-1$
- // public final static String JAVA_DOC= "__java_javadoc"; //$NON-NLS-1$
- public final static String PHP = "__php";
- // public final static String HTML = "__html";
+public class PHPPartitionScanner 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 final static IToken php = new Token(PHP);
- // public final static IToken html = new Token(HTML);
- public final static IToken comment = new Token(HTML_MULTILINE_COMMENT);
+ public PHPPartitionScanner() {
+ this(IPHPPartitions.PHP_FILE);
+ }
+
+ public PHPPartitionScanner(int fileType) {
+ this.tokens.put(IPHPPartitions.PHP_PARTITIONING, new Token(IPHPPartitions.PHP_PARTITIONING));
+ this.tokens.put(IPHPPartitions.PHP_STRING_DQ, new Token(IPHPPartitions.PHP_STRING_DQ));
+ this.tokens.put(
+ IPHPPartitions.PHP_PHPDOC_COMMENT,
+ new Token(IPHPPartitions.PHP_PHPDOC_COMMENT));
+ 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;
+ }
- protected final static char[] php0EndSequence = { '<', '?' };
- protected final static char[] php1EndSequence = { '<', '?', 'p', 'h', 'p' };
- protected final static char[] php2EndSequence = { '<', '?', 'P', 'H', 'P' };
+ private IToken getToken(String type) {
+ fLength = fCurrentLength;
+ if (DEBUG) {
- private StringBuffer test;
+ 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;
+ }
- public class PHPMultiLineRule extends MultiLineRule {
+ /* (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);
+ }
- public PHPMultiLineRule(String startSequence, String endSequence, IToken token) {
- super(startSequence, endSequence, token);
+ 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());
}
- public PHPMultiLineRule(String startSequence, String endSequence, IToken token, char escapeCharacter) {
- super(startSequence, endSequence, token, escapeCharacter);
+ }
+
+ /* (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;
}
- protected boolean endSequenceDetected(ICharacterScanner scanner) {
- int c;
- int c2;
-
- boolean lineCommentMode = false;
- boolean multiLineCommentMode = false;
- boolean stringMode = false;
-
- char[][] delimiters = scanner.getLegalLineDelimiters();
- while ((c = scanner.read()) != ICharacterScanner.EOF) {
- if (c == '#') {
- // read until end of line
- while ((c = scanner.read()) != ICharacterScanner.EOF) {
- if (fEndSequence.length > 0 && c == fEndSequence[0]) {
- // Check if the specified end sequence has been found.
- if (sequenceDetected(scanner, fEndSequence, true))
- return true;
- } else if (c == '\n') {
- break;
- }
+ while ((c = read()) != ICharacterScanner.EOF) {
+ switch (c) {
+ case '<' :
+ if (!isInString(IPHPPartitions.PHP_PARTITIONING)
+ && fContentType != IPHPPartitions.PHP_PHPDOC_COMMENT
+ && checkPattern(new char[] { '?', 'p', 'h', 'p' }, true)) {
+ if (fContentType != IPHPPartitions.PHP_PARTITIONING && fCurrentLength > 5) {
+ unread(5);
+ IToken token = getToken(fContentType);
+ // save previouse contenttype
+ //TODO build stack for previouse contenttype
+ fPrevContentType = fContentType;
+
+ fContentType = IPHPPartitions.PHP_PARTITIONING;
+
+ return token;
+ } else
+ fContentType = IPHPPartitions.PHP_PARTITIONING;
+
+ // remember offset of this partition
+ fTokenOffset = fOffset - 5;
+ fCurrentLength = 5;
+ } else if (
+ !isInString(IPHPPartitions.PHP_PARTITIONING)
+ && fContentType != IPHPPartitions.PHP_PHPDOC_COMMENT
+ && checkPattern(new char[] { '?' }, false)) {
+ if (fContentType != IPHPPartitions.PHP_PARTITIONING && fCurrentLength > 2) {
+ unread(2);
+ IToken token = getToken(fContentType);
+ // save previouse contenttype
+ fPrevContentType = fContentType;
+ fContentType = IPHPPartitions.PHP_PARTITIONING;
+ return token;
+ } else
+ fContentType = IPHPPartitions.PHP_PARTITIONING;
+ // remember offset of this partition
+ fTokenOffset = fOffset - 2;
+ fCurrentLength = 2;
+ } else if (
+ !isInString(IPHPPartitions.PHP_PARTITIONING)
+ && (fContentType != IPHPPartitions.PHP_PARTITIONING) // BUG #769044
+ && (fContentType != IPHPPartitions.PHP_PHPDOC_COMMENT) // BUG #769044
+ && 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;
}
- continue;
- } else if (c == '/' && (c = scanner.read()) != ICharacterScanner.EOF) {
- if (c == '/') {
- // read until end of line
- while ((c = scanner.read()) != ICharacterScanner.EOF) {
- if (fEndSequence.length > 0 && c == fEndSequence[0]) {
- // Check if the specified end sequence has been found.
- if (sequenceDetected(scanner, fEndSequence, true))
- return true;
- } else if (c == '\n') {
- break;
+ break;
+ case '?' :
+ if (!isInString(IPHPPartitions.PHP_PARTITIONING) && fContentType == IPHPPartitions.PHP_PARTITIONING) {
+ if ((c = read()) == '>') {
+ if (fPrevContentType != null)
+ fContentType = fPrevContentType;
+ else
+ fContentType = IPHPPartitions.HTML;
+ partitionBorder = true;
+ return getToken(IPHPPartitions.PHP_PARTITIONING);
+ } else if (c != ICharacterScanner.EOF)
+ unread();
+ }
+ break;
+ case '-' :
+ if (!isInString(IPHPPartitions.PHP_PARTITIONING)
+ && 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);
}
- }
- continue;
- } else if (c == '*') {
- // multi-line comment
- while ((c = scanner.read()) != ICharacterScanner.EOF) {
- if (c == '*' && (c = scanner.read()) != ICharacterScanner.EOF) {
- if (c == '/') {
- break;
- }
- scanner.unread();
+ 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;
}
- }
-
- continue;
- } else {
- scanner.unread();
- }
- } else if (c == '"') {
- // string mode
- while ((c = scanner.read()) != ICharacterScanner.EOF) {
- if (c == '\\') {
- c = scanner.read();
- } else if (c == '"') {
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;
+ }
}
- continue;
- } else if (c == '\'') {
- // string mode
- while ((c = scanner.read()) != ICharacterScanner.EOF) {
- if (c == '\\') {
- c = scanner.read();
- } else if (c == '\'') {
- break;
+ 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);
}
- continue;
- }
+ 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;
+ }
- if (c == fEscapeCharacter) {
- // Skip the escaped character.
- scanner.read();
- } else if (fEndSequence.length > 0 && c == fEndSequence[0]) {
- // Check if the specified end sequence has been found.
- if (sequenceDetected(scanner, fEndSequence, true))
- return true;
- } else if (fBreaksOnEOL) {
- // Check for end of line since it can be used to terminate the pattern.
- for (int i = 0; i < delimiters.length; i++) {
- if (c == delimiters[i][0] && sequenceDetected(scanner, delimiters[i], false))
- return true;
+ } else if (!isInString(IPHPPartitions.PHP_PARTITIONING) && c != ICharacterScanner.EOF)
+ unread();
+ break;
+ case '*' :
+ if (!isInString(IPHPPartitions.PHP_PARTITIONING) && (c = read()) == '/') {
+ if (fContentType == IPHPPartitions.PHP_PHPDOC_COMMENT) {
+ fContentType = IPHPPartitions.PHP_PARTITIONING;
+ partitionBorder = true;
+ return getToken(IPHPPartitions.PHP_PHPDOC_COMMENT);
+ } else if (fContentType == IPHPPartitions.CSS_MULTILINE_COMMENT) {
+ } else if (fContentType == IPHPPartitions.JS_MULTILINE_COMMENT) {
+ }
+ } else 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);
+ }
+ } else if (!isInString(IPHPPartitions.PHP_PARTITIONING) && c != ICharacterScanner.EOF) {
+ unread();
}
- }
- }
- boolean phpMode = false;
- if (c == ICharacterScanner.EOF) {
- phpMode = true;
+ break;
+ case '\'' :
+ if (!fInDoubString)
+ fInString = !fInString;
+ break;
+ case '"' :
+ // toggle String mode
+ if (!fInString)
+ fInDoubString = !fInDoubString;
+ break;
}
- scanner.unread();
- return phpMode;
- }
+ } // end of file reached but we have to return the
+ // last partition.
+ return getToken(fContentType);
}
-
- // public class HTMLMultiLineRule extends MultiLineRule {
- //
- // public HTMLMultiLineRule(String startSequence, String endSequence, IToken token) {
- // super(startSequence, endSequence, token);
- // }
- //
- // public HTMLMultiLineRule(String startSequence, String endSequence, IToken token, char escapeCharacter) {
- // super(startSequence, endSequence, token, escapeCharacter);
- // }
- //
- // protected boolean endSequenceDetected(ICharacterScanner scanner) {
- // int c;
- //
- // char[][] delimiters = scanner.getLegalLineDelimiters();
- // while ((c = scanner.read()) != ICharacterScanner.EOF) {
- // if (c == '<') {
- // // scanner.unread();
- // if (sequenceDetected(scanner, php2EndSequence, true)) {
- // // <?PHP
- // scanner.unread();
- // scanner.unread();
- // scanner.unread();
- // scanner.unread();
- // scanner.unread();
- // return true;
- // }
- // if (sequenceDetected(scanner, php1EndSequence, true)) {
- // // <?php
- // scanner.unread();
- // scanner.unread();
- // scanner.unread();
- // scanner.unread();
- // scanner.unread();
- // return true;
- // }
- // if (sequenceDetected(scanner, php0EndSequence, true)) {
- // // <?
- // scanner.unread();
- // scanner.unread();
- // return true;
- // }
- // // scanner.read();
- // }
- //
- // }
- // scanner.unread();
- // return false;
- // }
- //
- // protected IToken doEvaluate(ICharacterScanner scanner, boolean resume) {
- //
- // if (resume) {
- //
- // if (endSequenceDetected(scanner))
- // return fToken;
- //
- // } else {
- //
- // int c = scanner.read();
- // // if (c == fStartSequence[0]) {
- // // if (sequenceDetected(scanner, fStartSequence, false)) {
- // if (endSequenceDetected(scanner))
- // return fToken;
- // // }
- // // }
- // }
- //
- // scanner.unread();
- // return Token.UNDEFINED;
- // }
- //
- // public IToken evaluate(ICharacterScanner scanner, boolean resume) {
- // if (fColumn == UNDEFINED)
- // return doEvaluate(scanner, resume);
- //
- // int c = scanner.read();
- // scanner.unread();
- // // if (c == fStartSequence[0])
- // return (fColumn == scanner.getColumn() ? doEvaluate(scanner, resume) : Token.UNDEFINED);
- // // else
- // // return Token.UNDEFINED;
- // }
- // }
-
- public class HTMLPatternRule implements IPredicateRule {
-
- protected static final int UNDEFINED = -1;
-
- /** The token to be returned on success */
- protected IToken fToken;
-
- /** The pattern's column constrain */
- protected int fColumn = UNDEFINED;
- /** The pattern's escape character */
- protected char fEscapeCharacter;
- /** Indicates whether end of line termines the pattern */
- protected boolean fBreaksOnEOL;
-
- /**
- * Creates a rule for the given starting and ending sequence.
- * When these sequences are detected the rule will return the specified token.
- * Alternatively, the sequence can also be ended by the end of the line.
- * Any character which follows the given escapeCharacter will be ignored.
- *
- * @param startSequence the pattern's start sequence
- * @param endSequence the pattern's end sequence, <code>null</code> is a legal value
- * @param token the token which will be returned on success
- * @param escapeCharacter any character following this one will be ignored
- * @param indicates whether the end of the line also termines the pattern
- */
- public HTMLPatternRule(IToken token) {
- fToken = token;
- fEscapeCharacter = (char) 0;
- fBreaksOnEOL = false;
- }
-
- /**
- * Sets a column constraint for this rule. If set, the rule's token
- * will only be returned if the pattern is detected starting at the
- * specified column. If the column is smaller then 0, the column
- * constraint is considered removed.
- *
- * @param column the column in which the pattern starts
- */
- public void setColumnConstraint(int column) {
- if (column < 0)
- column = UNDEFINED;
- fColumn = column;
+ /* (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);
}
- /**
- * Evaluates this rules without considering any column constraints.
- *
- * @param scanner the character scanner to be used
- * @return the token resulting from this evaluation
- */
- protected IToken doEvaluate(ICharacterScanner scanner) {
- return doEvaluate(scanner, false);
- }
+ fDocument = document;
+ fOffset = offset;
+ fTokenOffset = offset;
+ fCurrentLength = 0;
+ fLength = 0;
+ fEnd = fOffset + length;
+ fInString = false;
+ fInDoubString = false;
+ fContentType = IPHPPartitions.HTML;
+ // String[] prev = getPartitionStack(offset);
+ }
- /**
- * Evaluates this rules without considering any column constraints. Resumes
- * detection, i.e. look sonly for the end sequence required by this rule if the
- * <code>resume</code> flag is set.
- *
- * @param scanner the character scanner to be used
- * @param resume <code>true</code> if detection should be resumed, <code>false</code> otherwise
- * @return the token resulting from this evaluation
- * @since 2.0
- */
- protected IToken doEvaluate(ICharacterScanner scanner, boolean resume) {
-
- if (resume) {
-
- if (endSequenceDetected(scanner))
- return fToken;
-
- } else {
-
- int c = scanner.read();
- // if (c == fStartSequence[0]) {
- // if (sequenceDetected(scanner, fStartSequence, false)) {
- if (endSequenceDetected(scanner))
- return fToken;
- // }
- // }
+ private int read() {
+ try {
+ if (fOffset < fEnd) {
+ fCurrentLength++;
+ return fDocument.getChar(fOffset++);
}
-
- scanner.unread();
- return Token.UNDEFINED;
+ return ICharacterScanner.EOF;
+ } catch (BadLocationException e) {
+ // should never happen
+ // TODO write stacktrace to log
+ fOffset = fEnd;
+ return ICharacterScanner.EOF;
}
+ }
- /*
- * @see IRule#evaluate
- */
- public IToken evaluate(ICharacterScanner scanner) {
- return evaluate(scanner, false);
- }
+ private void unread() {
+ --fOffset;
+ --fCurrentLength;
+ }
- /**
- * Returns whether the end sequence was detected. As the pattern can be considered
- * ended by a line delimiter, the result of this method is <code>true</code> if the
- * rule breaks on the end of the line, or if the EOF character is read.
- *
- * @param scanner the character scanner to be used
- * @return <code>true</code> if the end sequence has been detected
- */
- protected boolean endSequenceDetected(ICharacterScanner scanner) {
- int c;
-
- char[][] delimiters = scanner.getLegalLineDelimiters();
- while ((c = scanner.read()) != ICharacterScanner.EOF) {
- if (c == '<') {
- // scanner.unread();
- if (sequenceDetected(scanner, php2EndSequence, true)) {
- // <?PHP
- scanner.unread();
- scanner.unread();
- scanner.unread();
- scanner.unread();
- scanner.unread();
- return true;
- }
- if (sequenceDetected(scanner, php1EndSequence, true)) {
- // <?php
- scanner.unread();
- scanner.unread();
- scanner.unread();
- scanner.unread();
- scanner.unread();
- return true;
- }
- if (sequenceDetected(scanner, php0EndSequence, true)) {
- // <?
- scanner.unread();
- scanner.unread();
- return true;
- }
- // scanner.read();
- }
+ private void unread(int num) {
+ fOffset -= num;
+ fCurrentLength -= num;
+ }
- }
- scanner.unread();
- return false;
- }
+ private boolean checkPattern(char[] pattern) {
+ return checkPattern(pattern, false);
+ }
- /**
- * Returns whether the next characters to be read by the character scanner
- * are an exact match with the given sequence. No escape characters are allowed
- * within the sequence. If specified the sequence is considered to be found
- * when reading the EOF character.
- *
- * @param scanner the character scanner to be used
- * @param sequence the sequence to be detected
- * @param eofAllowed indicated whether EOF terminates the pattern
- * @return <code>true</code> if the given sequence has been detected
- */
- protected boolean sequenceDetected(ICharacterScanner scanner, char[] sequence, boolean eofAllowed) {
- for (int i = 1; i < sequence.length; i++) {
- int c = scanner.read();
- if (c == ICharacterScanner.EOF && eofAllowed) {
- return true;
- } else if (c != sequence[i]) {
- // Non-matching character detected, rewind the scanner back to the start.
- scanner.unread();
- for (int j = i - 1; j > 0; j--)
- scanner.unread();
- return 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;
}
- /*
- * @see IPredicateRule#evaluate(ICharacterScanner, boolean)
- * @since 2.0
- */
- public IToken evaluate(ICharacterScanner scanner, boolean resume) {
- if (fColumn == UNDEFINED)
- return doEvaluate(scanner, resume);
-
- int c = scanner.read();
- scanner.unread();
- // if (c == fStartSequence[0])
- return (fColumn == scanner.getColumn() ? doEvaluate(scanner, resume) : Token.UNDEFINED);
- // else
- // return Token.UNDEFINED;
- }
-
- /*
- * @see IPredicateRule#getSuccessToken()
- * @since 2.0
- */
- public IToken getSuccessToken() {
- return fToken;
- }
+ return true;
}
- /**
- * Detector for empty comments.
- */
- static class EmptyCommentDetector implements IWordDetector {
- /* (non-Javadoc)
- * Method declared on IWordDetector
- */
- public boolean isWordStart(char c) {
- return (c == '/');
- }
+ 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;
- /* (non-Javadoc)
- * Method declared on IWordDetector
- */
- public boolean isWordPart(char c) {
- return (c == '*' || c == '/');
- }
- };
+ 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.
*/
- static class WordPredicateRule extends WordRule implements IPredicateRule {
-
- private IToken fSuccessToken;
-
- public WordPredicateRule(IToken successToken) {
- super(new EmptyCommentDetector());
- fSuccessToken = successToken;
- addWord("/**/", fSuccessToken);
- }
-
- /*
- * @see org.eclipse.jface.text.rules.IPredicateRule#evaluate(ICharacterScanner, boolean)
- */
- public IToken evaluate(ICharacterScanner scanner, boolean resume) {
- return super.evaluate(scanner);
- }
-
- /*
- * @see org.eclipse.jface.text.rules.IPredicateRule#getSuccessToken()
- */
- public IToken getSuccessToken() {
- return fSuccessToken;
- }
- };
+ private boolean isInString(String contentType) {
+ if (fContentType == contentType)
+ return (fInString || fInDoubString);
+ else
+ return false;
+ }
/**
- * Creates the partitioner and sets up the appropriate rules.
+ * 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.
*/
- public PHPPartitionScanner() {
- super();
-
- // IToken php = new Token(PHP);
- // IToken html = new Token(HTML);
- // IToken comment = new Token(HTML_MULTILINE_COMMENT);
-
- List rules = new ArrayList();
-
- // Add rule for single line comments.
- // rules.add(new EndOfLineRule("//", Token.UNDEFINED));
-
- // Add rule for strings and character constants.
- // rules.add(new SingleLineRule("\"", "\"", Token.UNDEFINED, '\\'));
- // rules.add(new SingleLineRule("'", "'", Token.UNDEFINED, '\\'));
-
- // Add special case word rule.
- // rules.add(new WordPredicateRule(comment));
-
- // Add rules for multi-line comments and javadoc.
- //rules.add(new MultiLineRule("/**", "*/", javaDoc));
- // rules.add(new HTMLMultiLineRule("<", "<?", html));
-
- rules.add(new MultiLineRule("<!--", "-->", comment));
- rules.add(new PHPMultiLineRule("<?\r", "?>", php));
- rules.add(new PHPMultiLineRule("<?\n", "?>", php));
- rules.add(new PHPMultiLineRule("<?\t", "?>", php));
- rules.add(new PHPMultiLineRule("<? ", "?>", php));
- rules.add(new PHPMultiLineRule("<?php", "?>", php));
- rules.add(new PHPMultiLineRule("<?PHP", "?>", php));
+ 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();
+ }
+ }
- // rules.add(new HTMLPatternRule(html)); // "<", "<?",
- //Add rule for processing instructions
+ String[] retVal = new String[types.size()];
- IPredicateRule[] result = new IPredicateRule[rules.size()];
- rules.toArray(result);
- setPredicateRules(result);
- // setDefaultReturnToken(html);
+ retVal = (String[]) types.toArray(retVal);
+ return retVal;
}
- // public IToken nextToken() {
- //
- // if (fContentType == null || fRules == null)
- // return getNextToken();
- //
- // fTokenOffset= fOffset;
- // fColumn= UNDEFINED;
- // boolean resume= (fPartitionOffset < fOffset);
- //
- // IPredicateRule rule;
- // IToken token;
- //
- // for (int i= 0; i < fRules.length; i++) {
- // rule= (IPredicateRule) fRules[i];
- // token= rule.getSuccessToken();
- // if (fContentType.equals(token.getData())) {
- // if (resume)
- // fTokenOffset= fPartitionOffset;
- // token= rule.evaluate(this, resume);
- // if (!token.isUndefined()) {
- // fContentType= null;
- // return token;
- // }
- // }
- // }
- //
- // fContentType= null;
- // return getNextToken();
- // }
- //
- // public IToken getNextToken() {
- //
- // IToken token;
- //
- // while (true) {
- //
- // fTokenOffset= fOffset;
- // fColumn= UNDEFINED;
- //
- // if (fRules != null) {
- // for (int i= 0; i < fRules.length; i++) {
- // token= (fRules[i].evaluate(this));
- // if (!token.isUndefined())
- // return token;
- // }
- // }
- //
- // if (read() == EOF)
- // return Token.EOF;
- // else
- // return fDefaultReturnToken;
- // }
- // }
}
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