**********************************************************************/
package net.sourceforge.phpeclipse.phpeditor.php;
+import java.io.CharArrayWriter;
import java.util.ArrayList;
import java.util.List;
-import org.eclipse.jface.text.rules.EndOfLineRule;
+
import org.eclipse.jface.text.rules.ICharacterScanner;
import org.eclipse.jface.text.rules.IPredicateRule;
-import org.eclipse.jface.text.rules.IRule;
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.RuleBasedScanner;
-import org.eclipse.jface.text.rules.SingleLineRule;
import org.eclipse.jface.text.rules.Token;
import org.eclipse.jface.text.rules.WordRule;
*/
public class PHPPartitionScanner extends RuleBasedPartitionScanner {
- private final static String SKIP = "__skip"; //$NON-NLS-1$
- public final static String JAVA_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 class PHPMultiLineRule extends MultiLineRule {
-
- public PHPMultiLineRule(String startSequence, String endSequence, IToken token) {
- super(startSequence, endSequence, token);
- }
-
- public PHPMultiLineRule(String startSequence, String endSequence, IToken token, char escapeCharacter) {
- super(startSequence, endSequence, token, escapeCharacter);
- }
-
- 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 == '\n') {
- lineCommentMode = false;
- // read until end of line
- } else if (c == '#') {
- // read until end of line
- lineCommentMode = true;
- continue;
- } else if (c == '/') {
- c2 = scanner.read();
- if (c2 == '/') {
- lineCommentMode = true;
+ 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 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);
+
+ protected final static char[] php0EndSequence = { '<', '?' };
+ protected final static char[] php1EndSequence = { '<', '?', 'p', 'h', 'p' };
+ protected final static char[] php2EndSequence = { '<', '?', 'P', 'H', 'P' };
+ private StringBuffer test;
+
+ public class PHPMultiLineRule extends MultiLineRule {
+
+ public PHPMultiLineRule(String startSequence, String endSequence, IToken token) {
+ super(startSequence, endSequence, token);
+ }
+
+ public PHPMultiLineRule(String startSequence, String endSequence, IToken token, char escapeCharacter) {
+ super(startSequence, endSequence, token, escapeCharacter);
+ }
+
+ 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 (lineCommentMode && (c == '\n')) {
+ lineCommentMode = false;
+ // read until end of line
+ } else if ((!stringMode) && (c == '#')) {
+ // read until end of line
+ lineCommentMode = true;
+ continue;
+ } else if ((!stringMode) && (!multiLineCommentMode) && (c == '/')) {
+ c2 = scanner.read();
+ if (c2 == '/') {
+ lineCommentMode = true;
+ continue;
+ } else if (c2 == '*') {
+ multiLineCommentMode = true;
+ continue;
+ } else {
+ scanner.unread();
+ }
+ } else if (c == '*' && multiLineCommentMode) {
+ c2 = scanner.read();
+ if (c2 == '/') {
+ multiLineCommentMode = false;
continue;
- } else if(c2 == '*') {
- multiLineCommentMode = true;
- continue;
- } else {
- scanner.unread();
- }
- } else if (c == '*' && multiLineCommentMode) {
- c2 = scanner.read();
- if (c2 == '/') {
- multiLineCommentMode = false;
- continue;
- } else {
- scanner.unread();
- }
- } else if (c == '\\' && stringMode) {
- c2 = scanner.read();
- if (c2 == '"') {
- continue;
- } else {
- scanner.unread();
- }
- } else if (c == '"') {
- if (stringMode) {
- stringMode = false;
- } else {
- stringMode = true;
- }
- continue;
- }
- if (lineCommentMode || multiLineCommentMode || stringMode) {
- continue;
- }
-
- 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;
- }
- }
- }
- scanner.unread();
- return true;
- }
- }
- /**
- * Detector for empty comments.
- */
- static class EmptyCommentDetector implements IWordDetector {
-
- /* (non-Javadoc)
- * Method declared on IWordDetector
- */
- public boolean isWordStart(char c) {
- return (c == '/');
- }
-
- /* (non-Javadoc)
- * Method declared on IWordDetector
- */
- public boolean isWordPart(char c) {
- return (c == '*' || c == '/');
- }
- };
-
- /**
- *
- */
- 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;
- }
- };
-
- /**
- * Creates the partitioner and sets up the appropriate rules.
- */
- public PHPPartitionScanner() {
- super();
-
- // IToken javaDoc= new Token(JAVA_DOC);
- IToken comment = new Token(JAVA_MULTILINE_COMMENT);
- IToken php = new Token(PHP);
-
- 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 MultiLineRule("<!--", "-->", comment));
- rules.add(new PHPMultiLineRule("<? ", "?>", php));
- rules.add(new PHPMultiLineRule("<?php", "?>", php));
- rules.add(new PHPMultiLineRule("<?PHP", "?>", php));
- //Add rule for processing instructions
-
- IPredicateRule[] result = new IPredicateRule[rules.size()];
- rules.toArray(result);
- setPredicateRules(result);
- }
+ } else {
+ scanner.unread();
+ }
+ } else if (c == '\\' && stringMode) {
+ c2 = scanner.read();
+ if (c2 == '"') {
+ continue;
+ } else {
+ scanner.unread();
+ }
+ } else if ((!lineCommentMode) && (!multiLineCommentMode) && (c == '"')) {
+ if (stringMode) {
+ stringMode = false;
+ } else {
+ stringMode = true;
+ }
+ continue;
+ }
+ if (lineCommentMode || multiLineCommentMode || stringMode) {
+ continue;
+ }
+
+ 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;
+ }
+ }
+ }
+ scanner.unread();
+ return false;
+ }
+ }
+
+// 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;
+ }
+
+ /**
+ * 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);
+ }
+
+ /**
+ * 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;
+ // }
+ // }
+ }
+
+ scanner.unread();
+ return Token.UNDEFINED;
+ }
+
+ /*
+ * @see IRule#evaluate
+ */
+ public IToken evaluate(ICharacterScanner scanner) {
+ return evaluate(scanner, false);
+ }
+
+ /**
+ * 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();
+ }
+
+ }
+ scanner.unread();
+ return 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;
+ }
+ }
+
+ 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;
+ }
+ }
+ /**
+ * Detector for empty comments.
+ */
+ static class EmptyCommentDetector implements IWordDetector {
+
+ /* (non-Javadoc)
+ * Method declared on IWordDetector
+ */
+ public boolean isWordStart(char c) {
+ return (c == '/');
+ }
+
+ /* (non-Javadoc)
+ * Method declared on IWordDetector
+ */
+ public boolean isWordPart(char c) {
+ return (c == '*' || c == '/');
+ }
+ };
+
+ /**
+ *
+ */
+ 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;
+ }
+ };
+
+ /**
+ * Creates the partitioner and sets up the appropriate rules.
+ */
+ 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));
+
+// rules.add(new HTMLPatternRule(html)); // "<", "<?",
+ //Add rule for processing instructions
+
+ IPredicateRule[] result = new IPredicateRule[rules.size()];
+ rules.toArray(result);
+ setPredicateRules(result);
+// setDefaultReturnToken(html);
+ }
+
+ // 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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