Refactored packagename to net.sourceforge.phpdt.internal.compiler.ast
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / internal / compiler / parser / Parser.java
index 6824bd6..c34ca1d 100644 (file)
@@ -2,17 +2,45 @@
  * Copyright (c) 2002 www.phpeclipse.de All rights reserved. This program and the accompanying material 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: www.phpeclipse.de
  **********************************************************************************************************************************/
 package net.sourceforge.phpdt.internal.compiler.parser;
 
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.HashSet;
 
 import net.sourceforge.phpdt.core.compiler.CharOperation;
 import net.sourceforge.phpdt.core.compiler.ITerminalSymbols;
 import net.sourceforge.phpdt.core.compiler.InvalidInputException;
+import net.sourceforge.phpdt.internal.compiler.ast.AND_AND_Expression;
+import net.sourceforge.phpdt.internal.compiler.ast.ASTNode;
+import net.sourceforge.phpdt.internal.compiler.ast.AbstractMethodDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.BinaryExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.Block;
+import net.sourceforge.phpdt.internal.compiler.ast.BreakStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.CompilationUnitDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.ConditionalExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.ContinueStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.EqualExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.Expression;
+import net.sourceforge.phpdt.internal.compiler.ast.FieldDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.FieldReference;
+import net.sourceforge.phpdt.internal.compiler.ast.IfStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.ImportReference;
+import net.sourceforge.phpdt.internal.compiler.ast.InstanceOfExpression;
+import net.sourceforge.phpdt.internal.compiler.ast.MethodDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.OR_OR_Expression;
+import net.sourceforge.phpdt.internal.compiler.ast.OperatorIds;
+import net.sourceforge.phpdt.internal.compiler.ast.ReturnStatement;
+import net.sourceforge.phpdt.internal.compiler.ast.SingleTypeReference;
+import net.sourceforge.phpdt.internal.compiler.ast.Statement;
+import net.sourceforge.phpdt.internal.compiler.ast.StringLiteral;
+import net.sourceforge.phpdt.internal.compiler.ast.StringLiteralDQ;
+import net.sourceforge.phpdt.internal.compiler.ast.StringLiteralSQ;
+import net.sourceforge.phpdt.internal.compiler.ast.TypeDeclaration;
+import net.sourceforge.phpdt.internal.compiler.ast.TypeReference;
 import net.sourceforge.phpdt.internal.compiler.impl.CompilerOptions;
 import net.sourceforge.phpdt.internal.compiler.impl.ReferenceContext;
 import net.sourceforge.phpdt.internal.compiler.lookup.CompilerModifiers;
@@ -22,30 +50,6 @@ import net.sourceforge.phpdt.internal.compiler.problem.ProblemSeverities;
 import net.sourceforge.phpdt.internal.compiler.util.Util;
 import net.sourceforge.phpdt.internal.ui.util.PHPFileUtil;
 import net.sourceforge.phpeclipse.builder.IdentifierIndexManager;
-import net.sourceforge.phpeclipse.internal.compiler.ast.AND_AND_Expression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ASTNode;
-import net.sourceforge.phpeclipse.internal.compiler.ast.AbstractMethodDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.BinaryExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.CompilationUnitDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ConditionalExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.EmptyStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.EqualExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.Expression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.FieldDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.FieldReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.IfStatement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.ImportReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.InstanceOfExpression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.MethodDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.OR_OR_Expression;
-import net.sourceforge.phpeclipse.internal.compiler.ast.OperatorIds;
-import net.sourceforge.phpeclipse.internal.compiler.ast.SingleTypeReference;
-import net.sourceforge.phpeclipse.internal.compiler.ast.Statement;
-import net.sourceforge.phpeclipse.internal.compiler.ast.StringLiteral;
-import net.sourceforge.phpeclipse.internal.compiler.ast.StringLiteralDQ;
-import net.sourceforge.phpeclipse.internal.compiler.ast.StringLiteralSQ;
-import net.sourceforge.phpeclipse.internal.compiler.ast.TypeDeclaration;
-import net.sourceforge.phpeclipse.internal.compiler.ast.TypeReference;
 import net.sourceforge.phpeclipse.ui.overlaypages.ProjectPrefUtil;
 
 import org.eclipse.core.resources.IFile;
@@ -54,4293 +58,4632 @@ import org.eclipse.core.resources.IResource;
 import org.eclipse.core.runtime.IPath;
 
 public class Parser implements ITerminalSymbols, CompilerModifiers, ParserBasicInformation {
-  protected final static int StackIncrement = 255;
-
-  protected int stateStackTop;
-
-  //  protected int[] stack = new int[StackIncrement];
-
-  public int firstToken; // handle for multiple parsing goals
-
-  public int lastAct; //handle for multiple parsing goals
-
-  //  protected RecoveredElement currentElement;
-
-  public static boolean VERBOSE_RECOVERY = false;
-
-  protected boolean diet = false; //tells the scanner to jump over some
-
-  // parts of the code/expressions like
-  // method bodies
-  //scanner token
-  public Scanner scanner;
-
-  //  private ArrayList phpList;
-
-  //  private int currentPHPString;
-
-  //  private boolean phpEnd;
-
-  // private static HashMap keywordMap = null;
-  private String str;
-
-  // current character
-  //  char ch;
-  // current token
-  int token;
-
-  // row counter for syntax errors:
-  //int rowCount;
-  // column counter for syntax errors:
-  //int columnCount;
-  //int chIndx;
-  //
-  //   // current identifier
-  //   String identifier;
-  //  Long longNumber;
-
-  //  Double doubleNumber;
-
-  //  private String stringValue;
-
-  /** Contains the current expression. */
-  // private StringBuffer expression;
-  //private boolean phpMode;
-  protected int modifiers;
-
-  protected int modifiersSourceStart;
-
-  protected Parser(ProblemReporter problemReporter) {
-    this.problemReporter = problemReporter;
-    this.options = problemReporter.options;
-    //    this.currentPHPString = 0;
-    //         PHPParserSuperclass.fileToParse = fileToParse;
-    //    this.phpList = null;
-    //    this.indexManager = null;
-    this.str = "";
-    this.token = TokenNameEOF;
-    //    this.chIndx = 0;
-    //    this.rowCount = 1;
-    //    this.columnCount = 0;
-    //    this.phpEnd = false;
-    //   getNextToken();
-    this.initializeScanner();
-  }
-
-  public void setFileToParse(IFile fileToParse) {
-    //    this.currentPHPString = 0;
-    //    PHPParserSuperclass.fileToParse = fileToParse;
-    //    this.phpList = null;
-    //    this.indexManager = null;
-    this.str = "";
-    this.token = TokenNameEOF;
-    //    this.phpEnd = false;
-    this.initializeScanner();
-  }
-
-  /**
-   * ClassDeclaration Constructor.
-   * 
-   * @param s
-   * @param sess
-   *          Description of Parameter
-   * @see
-   */
-  public Parser(IFile fileToParse) {
-    //    if (keywordMap == null) {
-    //      keywordMap = new HashMap();
-    //      for (int i = 0; i < PHP_KEYWORS.length; i++) {
-    //        keywordMap.put(PHP_KEYWORS[i], new Integer(PHP_KEYWORD_TOKEN[i]));
-    //      }
-    //    }
-    //    this.currentPHPString = 0;
-    //    PHPParserSuperclass.fileToParse = fileToParse;
-    //    this.phpList = null;
-    this.includesList = null;
-    this.str = "";
-    this.token = TokenNameEOF;
-    //    this.chIndx = 0;
-    //    this.rowCount = 1;
-    //    this.columnCount = 0;
-    //    this.phpEnd = false;
-    //   getNextToken();
-    this.initializeScanner();
-  }
-
-  public void initializeScanner() {
-    this.scanner = new Scanner(false /* comment */, false /* whitespace */, this.options
-        .getSeverity(CompilerOptions.NonExternalizedString) != ProblemSeverities.Ignore /* nls */, false, false,
-        this.options.taskTags/* taskTags */, this.options.taskPriorites/* taskPriorities */, true/* isTaskCaseSensitive */);
-  }
-
-  /**
-   * Create marker for the parse error
-   */
-  //  private void setMarker(String message, int charStart, int charEnd, int
-  // errorLevel) {
-  //    setMarker(fileToParse, message, charStart, charEnd, errorLevel);
-  //  }
-  /**
-   * This method will throw the SyntaxError. It will add the good lines and columns to the Error
-   * 
-   * @param error
-   *          the error message
-   * @throws SyntaxError
-   *           the error raised
-   */
-  private void throwSyntaxError(String error) {
-    int problemStartPosition = scanner.getCurrentTokenStartPosition();
-    int problemEndPosition = scanner.getCurrentTokenEndPosition();
-    throwSyntaxError(error, problemStartPosition, problemEndPosition + 1);
-  }
-
-  /**
-   * This method will throw the SyntaxError. It will add the good lines and columns to the Error
-   * 
-   * @param error
-   *          the error message
-   * @throws SyntaxError
-   *           the error raised
-   */
-  //  private void throwSyntaxError(String error, int startRow) {
-  //    throw new SyntaxError(startRow, 0, " ", error);
-  //  }
-  private void throwSyntaxError(String error, int problemStartPosition, int problemEndPosition) {
-    if (referenceContext != null) {
-      problemReporter.phpParsingError(new String[] { error }, problemStartPosition, problemEndPosition, referenceContext,
-          compilationUnit.compilationResult);
-    }
-    throw new SyntaxError(1, 0, " ", error);
-  }
-
-  private void reportSyntaxError(String error) {
-    int problemStartPosition = scanner.getCurrentTokenStartPosition();
-    int problemEndPosition = scanner.getCurrentTokenEndPosition();
-    reportSyntaxError(error, problemStartPosition, problemEndPosition + 1);
-  }
-
-  private void reportSyntaxError(String error, int problemStartPosition, int problemEndPosition) {
-    if (referenceContext != null) {
-      problemReporter.phpParsingError(new String[] { error }, problemStartPosition, problemEndPosition, referenceContext,
-          compilationUnit.compilationResult);
-    }
-  }
-
-  private void reportSyntaxWarning(String error, int problemStartPosition, int problemEndPosition) {
-    if (referenceContext != null) {
-      problemReporter.phpParsingWarning(new String[] { error }, problemStartPosition, problemEndPosition, referenceContext,
-          compilationUnit.compilationResult);
-    }
-  }
-
-  /**
-   * gets the next token from input
-   */
-  private void getNextToken() {
-    try {
-      token = scanner.getNextToken();
-      if (Scanner.DEBUG) {
-        int currentEndPosition = scanner.getCurrentTokenEndPosition();
-        int currentStartPosition = scanner.getCurrentTokenStartPosition();
-        System.out.print(currentStartPosition + "," + currentEndPosition + ": ");
-        System.out.println(scanner.toStringAction(token));
-      }
-    } catch (InvalidInputException e) {
-      token = TokenNameERROR;
-      String detailedMessage = e.getMessage();
-
-      if (detailedMessage == Scanner.UNTERMINATED_STRING) {
-        throwSyntaxError("Unterminated string.");
-      } else if (detailedMessage == Scanner.UNTERMINATED_COMMENT) {
-        throwSyntaxError("Unterminated commment.");
-      }
-    }
-    return;
-  }
-
-  public void init(String s) {
-    this.str = s;
-    this.token = TokenNameEOF;
-    this.includesList = new ArrayList();
-    //    this.chIndx = 0;
-    //    this.rowCount = 1;
-    //    this.columnCount = 0;
-    //    this.phpEnd = false;
-    //    this.phpMode = false;
-    /* scanner initialization */
-    scanner.setSource(s.toCharArray());
-    scanner.setPHPMode(false);
-    astPtr = 0;
-  }
-
-  protected void initialize(boolean phpMode) {
-    initialize(phpMode, null);
-  }
-
-  protected void initialize(boolean phpMode, IdentifierIndexManager indexManager) {
-    compilationUnit = null;
-    referenceContext = null;
-    this.includesList = new ArrayList();
-    //    this.indexManager = indexManager;
-    this.str = "";
-    this.token = TokenNameEOF;
-    //    this.chIndx = 0;
-    //    this.rowCount = 1;
-    //    this.columnCount = 0;
-    //    this.phpEnd = false;
-    //    this.phpMode = phpMode;
-    scanner.setPHPMode(phpMode);
-    astPtr = 0;
-  }
-
-  /**
-   * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt; &lt;/body&gt;'
-   */
-  public void parse(String s) {
-    parse(s, null);
-  }
-
-  /**
-   * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt; &lt;/body&gt;'
-   */
-  public void parse(String s, HashMap variables) {
-    fMethodVariables = variables;
-    init(s);
-    parse();
-  }
-
-  /**
-   * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt; &lt;/body&gt;'
-   */
-  protected void parse() {
-    if (scanner.compilationUnit != null) {
-      IResource resource = scanner.compilationUnit.getResource();
-      if (resource != null && resource instanceof IFile) {
-        // set the package name
-        consumePackageDeclarationName((IFile) resource);
-      }
-    }
-    getNextToken();
-    do {
-      try {
-        if (token != TokenNameEOF && token != TokenNameERROR) {
-          statementList();
-        }
-        if (token != TokenNameEOF) {
-          if (token == TokenNameERROR) {
-            throwSyntaxError("Scanner error (Found unknown token: " + scanner.toStringAction(token) + ")");
-          }
-          if (token == TokenNameRPAREN) {
-            throwSyntaxError("Too many closing ')'; end-of-file not reached.");
-          }
-          if (token == TokenNameRBRACE) {
-            throwSyntaxError("Too many closing '}'; end-of-file not reached.");
-          }
-          if (token == TokenNameRBRACKET) {
-            throwSyntaxError("Too many closing ']'; end-of-file not reached.");
-          }
-          if (token == TokenNameLPAREN) {
-            throwSyntaxError("Read character '('; end-of-file not reached.");
-          }
-          if (token == TokenNameLBRACE) {
-            throwSyntaxError("Read character '{';  end-of-file not reached.");
-          }
-          if (token == TokenNameLBRACKET) {
-            throwSyntaxError("Read character '[';  end-of-file not reached.");
-          }
-          throwSyntaxError("End-of-file not reached.");
-        }
-        break;
-      } catch (SyntaxError sytaxErr1) {
-        break;
-        //        // if an error occured,
-        //        // try to find keywords 'abstract' 'final' 'class' or 'function'
-        //        // to parse the rest of the string
-        //        boolean tokenize = scanner.tokenizeStrings;
-        //        if (!tokenize) {
-        //          scanner.tokenizeStrings = true;
-        //        }
-        //        try {
-        //          while (token != TokenNameEOF) {
-        //            if (token == TokenNameabstract || token == TokenNamefinal || token == TokenNameclass || token == TokenNamefunction) {
-        //              break;
-        //            }
-        //            getNextToken();
-        //          }
-        //          if (token == TokenNameEOF) {
-        //            break;
-        //          }
-        //        } catch (SyntaxError sytaxErr2) {
-        //          break;
-        //        } finally {
-        //          scanner.tokenizeStrings = tokenize;
-        //        }
-      }
-    } while (true);
-
-    endParse(0);
-  }
-
-  /**
-   * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt; &lt;/body&gt;'
-   */
-  public void parseFunction(String s, HashMap variables) {
-    init(s);
-    scanner.phpMode = true;
-    parseFunction(variables);
-  }
-
-  /**
-   * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt; &lt;/body&gt;'
-   */
-  protected void parseFunction(HashMap variables) {
-    getNextToken();
-    boolean hasModifiers = member_modifiers();
-    if (token == TokenNamefunction) {
-      if (!hasModifiers) {
-        checkAndSetModifiers(AccPublic);
-      }
-      this.fMethodVariables = variables;
-
-      MethodDeclaration methodDecl = new MethodDeclaration(null);
-      methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
-      methodDecl.modifiers = this.modifiers;
-      methodDecl.type = MethodDeclaration.METHOD_DEFINITION;
-      try {
-        getNextToken();
-        functionDefinition(methodDecl);
-      } catch (SyntaxError sytaxErr1) {
-        return;
-      } finally {
-        int sourceEnd = scanner.getCurrentTokenStartPosition();
-        if (sourceEnd <= 0 || methodDecl.declarationSourceStart > sourceEnd) {
-          sourceEnd = methodDecl.declarationSourceStart + 1;
-        }
-        methodDecl.declarationSourceEnd = sourceEnd;
-      }
-    }
-  }
-
-  protected CompilationUnitDeclaration endParse(int act) {
-
-    this.lastAct = act;
-
-    //    if (currentElement != null) {
-    //      currentElement.topElement().updateParseTree();
-    //      if (VERBOSE_RECOVERY) {
-    //        System.out.print(Util.bind("parser.syntaxRecovery")); //$NON-NLS-1$
-    //        System.out.println("--------------------------"); //$NON-NLS-1$
-    //        System.out.println(compilationUnit);
-    //        System.out.println("----------------------------------"); //$NON-NLS-1$
-    //      }
-    //    } else {
-    if (diet & VERBOSE_RECOVERY) {
-      System.out.print(Util.bind("parser.regularParse")); //$NON-NLS-1$
-      System.out.println("--------------------------"); //$NON-NLS-1$
-      System.out.println(compilationUnit);
-      System.out.println("----------------------------------"); //$NON-NLS-1$
-    }
-    //    }
-    if (scanner.recordLineSeparator) {
-      compilationUnit.compilationResult.lineSeparatorPositions = scanner.getLineEnds();
-    }
-    if (scanner.taskTags != null) {
-      for (int i = 0; i < scanner.foundTaskCount; i++) {
-        problemReporter().task(new String(scanner.foundTaskTags[i]), new String(scanner.foundTaskMessages[i]),
-            scanner.foundTaskPriorities[i] == null ? null : new String(scanner.foundTaskPriorities[i]),
-            scanner.foundTaskPositions[i][0], scanner.foundTaskPositions[i][1]);
-      }
-    }
-    compilationUnit.imports = new ImportReference[includesList.size()];
-    for (int i = 0; i < includesList.size(); i++) {
-      compilationUnit.imports[i] = (ImportReference) includesList.get(i);
-    }
-    return compilationUnit;
-  }
-
-  private boolean isVariable() {
-    return token == TokenNameVariable; //  || token == TokenNamethis;
-  }
-
-  private void statementList() {
-    do {
-      try {
-        statement(TokenNameEOF);
-        if ((token == TokenNameRBRACE) || (token == TokenNamecase) || (token == TokenNamedefault) || (token == TokenNameelse)
-            || (token == TokenNameelseif) || (token == TokenNameendif) || (token == TokenNameendfor)
-            || (token == TokenNameendforeach) || (token == TokenNameendwhile) || (token == TokenNameendswitch)
-            || (token == TokenNameenddeclare) || (token == TokenNameEOF) || (token == TokenNameERROR)) {
-          return;
-        }
-      } catch (SyntaxError sytaxErr1) {
-        // if an error occured,
-        // try to find keywords
-        // to parse the rest of the string
-        boolean tokenize = scanner.tokenizeStrings;
-        if (!tokenize) {
-          scanner.tokenizeStrings = true;
-        }
-        try {
-          while (token != TokenNameEOF) {
-            if ((token == TokenNameRBRACE) || (token == TokenNamecase) || (token == TokenNamedefault) || (token == TokenNameelse)
-                || (token == TokenNameelseif) || (token == TokenNameendif) || (token == TokenNameendfor)
-                || (token == TokenNameendforeach) || (token == TokenNameendwhile) || (token == TokenNameendswitch)
-                || (token == TokenNameenddeclare) || (token == TokenNameEOF) || (token == TokenNameERROR)) {
-              return;
-            }
-            if (token == TokenNameif || token == TokenNameswitch || token == TokenNamefor || token == TokenNamewhile
-                || token == TokenNamedo || token == TokenNameforeach || token == TokenNamecontinue || token == TokenNamebreak
-                || token == TokenNamereturn || token == TokenNameexit || token == TokenNameecho || token == TokenNameglobal
-                || token == TokenNamestatic || token == TokenNameunset || token == TokenNamefunction || token == TokenNamedeclare
-                || token == TokenNametry || token == TokenNamecatch || token == TokenNamethrow || token == TokenNamefinal
-                || token == TokenNameabstract || token == TokenNameclass || token == TokenNameinterface) {
-              break;
-            }
-            //            System.out.println(scanner.toStringAction(token));
-            getNextToken();
-            //            System.out.println(scanner.toStringAction(token));
-          }
-          if (token == TokenNameEOF) {
-            throw sytaxErr1;
-          }
-        } finally {
-          scanner.tokenizeStrings = tokenize;
-        }
-      }
-    } while (true);
-  }
-
-  private void functionBody(MethodDeclaration methodDecl) {
-    // '{' [statement-list] '}'
-    if (token == TokenNameLBRACE) {
-      getNextToken();
-    } else {
-      throwSyntaxError("'{' expected in compound-statement.");
-    }
-    if (token != TokenNameRBRACE) {
-      statementList();
-    }
-    if (token == TokenNameRBRACE) {
-      //      methodDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
-      getNextToken();
-    } else {
-      throwSyntaxError("'}' expected in compound-statement.");
-    }
-  }
-
-  private Statement statement(int previousToken) {
-    Statement statement = null;
-    Expression expression;
-    int sourceStart = scanner.getCurrentTokenStartPosition();
-    if (token == TokenNameif) {
-      getNextToken();
-      if (token == TokenNameLPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("'(' expected after 'if' keyword.");
-      }
-      expression = expr();
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("')' expected after 'if' condition.");
-      }
-      ifStatement();
-      return new IfStatement(expression, statement, sourceStart, scanner.getCurrentTokenEndPosition());
-    } else if (token == TokenNameswitch) {
-      getNextToken();
-      if (token == TokenNameLPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("'(' expected after 'switch' keyword.");
-      }
-      expr();
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("')' expected after 'switch' condition.");
-      }
-      switchStatement();
-      return statement;
-    } else if (token == TokenNamefor) {
-      getNextToken();
-      if (token == TokenNameLPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("'(' expected after 'for' keyword.");
-      }
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        expressionList();
-        if (token == TokenNameSEMICOLON) {
-          getNextToken();
-        } else {
-          throwSyntaxError("';' expected after 'for'.");
-        }
-      }
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        expressionList();
-        if (token == TokenNameSEMICOLON) {
-          getNextToken();
-        } else {
-          throwSyntaxError("';' expected after 'for'.");
-        }
-      }
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-      } else {
-        expressionList();
-        if (token == TokenNameRPAREN) {
-          getNextToken();
-        } else {
-          throwSyntaxError("')' expected after 'for'.");
-        }
-      }
-      forStatement();
-      return statement;
-    } else if (token == TokenNamewhile) {
-      getNextToken();
-      if (token == TokenNameLPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("'(' expected after 'while' keyword.");
-      }
-      expr();
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("')' expected after 'while' condition.");
-      }
-      whileStatement();
-      return statement;
-    } else if (token == TokenNamedo) {
-      getNextToken();
-      if (token == TokenNameLBRACE) {
-        getNextToken();
-        if (token != TokenNameRBRACE) {
-          statementList();
-        }
-        if (token == TokenNameRBRACE) {
-          getNextToken();
-        } else {
-          throwSyntaxError("'}' expected after 'do' keyword.");
-        }
-      } else {
-        statement(TokenNameEOF);
-      }
-      if (token == TokenNamewhile) {
-        getNextToken();
-        if (token == TokenNameLPAREN) {
-          getNextToken();
-        } else {
-          throwSyntaxError("'(' expected after 'while' keyword.");
-        }
-        expr();
-        if (token == TokenNameRPAREN) {
-          getNextToken();
-        } else {
-          throwSyntaxError("')' expected after 'while' condition.");
-        }
-      } else {
-        throwSyntaxError("'while' expected after 'do' keyword.");
-      }
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        if (token != TokenNameINLINE_HTML) {
-          throwSyntaxError("';' expected after do-while statement.");
-        }
-        getNextToken();
-      }
-      return statement;
-    } else if (token == TokenNameforeach) {
-      getNextToken();
-      if (token == TokenNameLPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("'(' expected after 'foreach' keyword.");
-      }
-      expr();
-      if (token == TokenNameas) {
-        getNextToken();
-      } else {
-        throwSyntaxError("'as' expected after 'foreach' exxpression.");
-      }
-      //      variable();
-      foreach_variable();
-      foreach_optional_arg();
-      if (token == TokenNameEQUAL_GREATER) {
-        getNextToken();
-        variable();
-      }
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("')' expected after 'foreach' expression.");
-      }
-      foreachStatement();
-      return statement;
-    } else if (token == TokenNamecontinue || token == TokenNamebreak || token == TokenNamereturn) {
-      getNextToken();
-      if (token != TokenNameSEMICOLON) {
-        expr();
-      }
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        if (token != TokenNameINLINE_HTML) {
-          throwSyntaxError("';' expected after 'continue', 'break' or 'return'.");
-        }
-        getNextToken();
-      }
-      return statement;
-    } else if (token == TokenNameecho) {
-      getNextToken();
-      expressionList();
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        if (token != TokenNameINLINE_HTML) {
-          throwSyntaxError("';' expected after 'echo' statement.");
-        }
-        getNextToken();
-      }
-      return statement;
-    } else if (token == TokenNameINLINE_HTML) {
-      getNextToken();
-      return statement;
-      //    } else if (token == TokenNameprint) {
-      //      getNextToken();
-      //      expression();
-      //      if (token == TokenNameSEMICOLON) {
-      //        getNextToken();
-      //      } else {
-      //        if (token != TokenNameStopPHP) {
-      //          throwSyntaxError("';' expected after 'print' statement.");
-      //        }
-      //        getNextToken();
-      //      }
-      //      return;
-    } else if (token == TokenNameglobal) {
-      getNextToken();
-      global_var_list();
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        if (token != TokenNameINLINE_HTML) {
-          throwSyntaxError("';' expected after 'global' statement.");
-        }
-        getNextToken();
-      }
-      return statement;
-    } else if (token == TokenNamestatic) {
-      getNextToken();
-      static_var_list();
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        if (token != TokenNameINLINE_HTML) {
-          throwSyntaxError("';' expected after 'static' statement.");
-        }
-        getNextToken();
-      }
-      return statement;
-    } else if (token == TokenNameunset) {
-      getNextToken();
-      if (token == TokenNameLPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("'(' expected after 'unset' statement.");
-      }
-      unset_variables();
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("')' expected after 'unset' statement.");
-      }
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        if (token != TokenNameINLINE_HTML) {
-          throwSyntaxError("';' expected after 'unset' statement.");
-        }
-        getNextToken();
-      }
-      return statement;
-    } else if (token == TokenNamefunction) {
-      MethodDeclaration methodDecl = new MethodDeclaration(this.compilationUnit.compilationResult);
-      methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
-      methodDecl.modifiers = AccDefault;
-      methodDecl.type = MethodDeclaration.FUNCTION_DEFINITION;
-      try {
-        getNextToken();
-        functionDefinition(methodDecl);
-      } finally {
-        int sourceEnd = scanner.getCurrentTokenStartPosition();
-        if (sourceEnd <= 0 || methodDecl.declarationSourceStart > sourceEnd) {
-          sourceEnd = methodDecl.declarationSourceStart + 1;
-        }
-        methodDecl.declarationSourceEnd = sourceEnd;
-      }
-      return statement;
-    } else if (token == TokenNamedeclare) {
-      //T_DECLARE '(' declare_list ')' declare_statement
-      getNextToken();
-      if (token != TokenNameLPAREN) {
-        throwSyntaxError("'(' expected in 'declare' statement.");
-      }
-      getNextToken();
-      declare_list();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected in 'declare' statement.");
-      }
-      getNextToken();
-      declare_statement();
-      return statement;
-    } else if (token == TokenNametry) {
-      getNextToken();
-      if (token != TokenNameLBRACE) {
-        throwSyntaxError("'{' expected in 'try' statement.");
-      }
-      getNextToken();
-      statementList();
-      if (token != TokenNameRBRACE) {
-        throwSyntaxError("'}' expected in 'try' statement.");
-      }
-      getNextToken();
-      return statement;
-    } else if (token == TokenNamecatch) {
-      getNextToken();
-      if (token != TokenNameLPAREN) {
-        throwSyntaxError("'(' expected in 'catch' statement.");
-      }
-      getNextToken();
-      fully_qualified_class_name();
-      if (token != TokenNameVariable) {
-        throwSyntaxError("Variable expected in 'catch' statement.");
-      }
-      getNextToken();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected in 'catch' statement.");
-      }
-      getNextToken();
-      if (token != TokenNameLBRACE) {
-        throwSyntaxError("'{' expected in 'catch' statement.");
-      }
-      getNextToken();
-      if (token != TokenNameRBRACE) {
-        statementList();
-        if (token != TokenNameRBRACE) {
-          throwSyntaxError("'}' expected in 'catch' statement.");
-        }
-      }
-      getNextToken();
-      additional_catches();
-      return statement;
-    } else if (token == TokenNamethrow) {
-      getNextToken();
-      expr();
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-      } else {
-        throwSyntaxError("';' expected after 'throw' exxpression.");
-      }
-      return statement;
-    } else if (token == TokenNamefinal || token == TokenNameabstract || token == TokenNameclass || token == TokenNameinterface) {
-      try {
-        TypeDeclaration typeDecl = new TypeDeclaration(this.compilationUnit.compilationResult);
-        typeDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
-        typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
-        typeDecl.name = new char[] { ' ' };
-        // default super class
-        typeDecl.superclass = new SingleTypeReference(TypeConstants.OBJECT, 0);
-        compilationUnit.types.add(typeDecl);
-        pushOnAstStack(typeDecl);
-        unticked_class_declaration_statement(typeDecl);
-      } finally {
-        // reduce stack:
-        astPtr--;
-        astLengthPtr--;
-      }
-      return statement;
-      //      } else {
-      //        throwSyntaxError("Unexpected keyword '" + keyword + "'");
-    } else if (token == TokenNameLBRACE) {
-      getNextToken();
-      if (token != TokenNameRBRACE) {
-        statementList();
-      }
-      if (token == TokenNameRBRACE) {
-        getNextToken();
-        return statement;
-      } else {
-        throwSyntaxError("'}' expected.");
-      }
-    } else {
-      if (token != TokenNameSEMICOLON) {
-        expr();
-      }
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-        return statement;
-      } else {
-        if (token == TokenNameRBRACE) {
-          reportSyntaxError("';' expected after expression (Found token: " + scanner.toStringAction(token) + ")");
-        } else {
-          if (token != TokenNameINLINE_HTML && token != TokenNameEOF) {
-            throwSyntaxError("';' expected after expression (Found token: " + scanner.toStringAction(token) + ")");
-          }
-          getNextToken();
-        }
-      }
-    }
-    // may be null
-    return statement;
-  }
-
-  private void declare_statement() {
-    // statement
-    //| ':' inner_statement_list T_ENDDECLARE ';'
-    //;
-    if (token == TokenNameCOLON) {
-      getNextToken();
-      // TODO: implement inner_statement_list();
-      statementList();
-      if (token != TokenNameenddeclare) {
-        throwSyntaxError("'enddeclare' expected in 'declare' statement.");
-      }
-      getNextToken();
-      if (token != TokenNameSEMICOLON) {
-        throwSyntaxError("';' expected after 'enddeclare' keyword.");
-      }
-      getNextToken();
-    } else {
-      statement(TokenNameRPAREN);
-    }
-  }
-
-  private void declare_list() {
-    // T_STRING '=' static_scalar
-    //| declare_list ',' T_STRING '=' static_scalar
-    while (true) {
-      if (token != TokenNameIdentifier) {
-        throwSyntaxError("Identifier expected in 'declare' list.");
-      }
-      getNextToken();
-      if (token != TokenNameEQUAL) {
-        throwSyntaxError("'=' expected in 'declare' list.");
-      }
-      getNextToken();
-      static_scalar();
-      if (token != TokenNameCOMMA) {
-        break;
-      }
-      getNextToken();
-    }
-  }
-
-  private void additional_catches() {
-    while (token == TokenNamecatch) {
-      getNextToken();
-      if (token != TokenNameLPAREN) {
-        throwSyntaxError("'(' expected in 'catch' statement.");
-      }
-      getNextToken();
-      fully_qualified_class_name();
-      if (token != TokenNameVariable) {
-        throwSyntaxError("Variable expected in 'catch' statement.");
-      }
-      getNextToken();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected in 'catch' statement.");
-      }
-      getNextToken();
-      if (token != TokenNameLBRACE) {
-        throwSyntaxError("'{' expected in 'catch' statement.");
-      }
-      getNextToken();
-      if (token != TokenNameRBRACE) {
-        statementList();
-      }
-      if (token != TokenNameRBRACE) {
-        throwSyntaxError("'}' expected in 'catch' statement.");
-      }
-      getNextToken();
-    }
-  }
-
-  private void foreach_variable() {
-    // w_variable
-    //| '&' w_variable
-    if (token == TokenNameAND) {
-      getNextToken();
-    }
-    w_variable();
-  }
-
-  private void foreach_optional_arg() {
-    // /* empty */
-    //| T_DOUBLE_ARROW foreach_variable
-    if (token == TokenNameEQUAL_GREATER) {
-      getNextToken();
-      foreach_variable();
-    }
-  }
-
-  private void global_var_list() {
-    //  global_var_list:
-    // global_var_list ',' global_var
-    //| global_var
-    while (true) {
-      global_var();
-      if (token != TokenNameCOMMA) {
-        break;
-      }
-      getNextToken();
-    }
-  }
-
-  private void global_var() {
-    //global_var:
-    // T_VARIABLE
-    //| '$' r_variable
-    //| '$' '{' expr '}'
-    if (token == TokenNameVariable) {
-      VariableInfo info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_GLOBAL_VAR);
-      if (fMethodVariables != null) {
-        fMethodVariables.put(new String(scanner.getCurrentIdentifierSource()), info);
-      }
-      getNextToken();
-    } else if (token == TokenNameDOLLAR) {
-      getNextToken();
-      if (token == TokenNameLBRACE) {
-        getNextToken();
-        expr();
-        if (token != TokenNameRBRACE) {
-          throwSyntaxError("'}' expected in global variable.");
-        }
-        getNextToken();
-      } else {
-        r_variable();
-      }
-    }
-  }
-
-  private void static_var_list() {
-    //static_var_list:
-    // static_var_list ',' T_VARIABLE
-    //| static_var_list ',' T_VARIABLE '=' static_scalar
-    //| T_VARIABLE
-    //| T_VARIABLE '=' static_scalar
-    while (true) {
-      if (token == TokenNameVariable) {
-        VariableInfo info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_STATIC_VAR);
-        if (fMethodVariables != null) {
-          fMethodVariables.put(new String(scanner.getCurrentIdentifierSource()), info);
-        }
-        getNextToken();
-        if (token == TokenNameEQUAL) {
-          getNextToken();
-          static_scalar();
-        }
-        if (token != TokenNameCOMMA) {
-          break;
-        }
-        getNextToken();
-      } else {
-        break;
-      }
-    }
-  }
-
-  private void unset_variables() {
-    //    unset_variables:
-    //                 unset_variable
-    //         | unset_variables ',' unset_variable
-    //    unset_variable:
-    //                 variable
-    while (true) {
-      variable();
-      if (token != TokenNameCOMMA) {
-        break;
-      }
-      getNextToken();
-    }
-  }
-
-  private final void initializeModifiers() {
-    this.modifiers = 0;
-    this.modifiersSourceStart = -1;
-  }
-
-  private final void checkAndSetModifiers(int flag) {
-    this.modifiers |= flag;
-    if (this.modifiersSourceStart < 0)
-      this.modifiersSourceStart = this.scanner.startPosition;
-  }
-
-  private void unticked_class_declaration_statement(TypeDeclaration typeDecl) {
-    initializeModifiers();
-    if (token == TokenNameinterface) {
-      //      interface_entry T_STRING
-      //               interface_extends_list
-      //               '{' class_statement_list '}'
-      checkAndSetModifiers(AccInterface);
-      getNextToken();
-      typeDecl.modifiers = this.modifiers;
-      typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
-      typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
-      if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
-        typeDecl.name = scanner.getCurrentIdentifierSource();
-        if (token > TokenNameKEYWORD) {
-          problemReporter.phpKeywordWarning(new String[] { scanner.toStringAction(token) }, scanner.getCurrentTokenStartPosition(),
-              scanner.getCurrentTokenEndPosition(), referenceContext, compilationUnit.compilationResult);
-          //          throwSyntaxError("Don't use a keyword for interface declaration [" + scanner.toStringAction(token) + "].",
-          //              typeDecl.sourceStart, typeDecl.sourceEnd);
-        }
-        getNextToken();
-        interface_extends_list(typeDecl);
-      } else {
-        typeDecl.name = new char[] { ' ' };
-        throwSyntaxError("Interface name expected after keyword 'interface'.", typeDecl.sourceStart, typeDecl.sourceEnd);
-        return;
-      }
-    } else {
-      //      class_entry_type T_STRING extends_from
-      //               implements_list
-      //               '{' class_statement_list'}'
-      class_entry_type();
-      typeDecl.modifiers = this.modifiers;
-      typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
-      typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
-      //identifier
-      //identifier 'extends' identifier
-      if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
-        typeDecl.name = scanner.getCurrentIdentifierSource();
-        if (token > TokenNameKEYWORD) {
-          problemReporter.phpKeywordWarning(new String[] { scanner.toStringAction(token) }, scanner.getCurrentTokenStartPosition(),
-              scanner.getCurrentTokenEndPosition(), referenceContext, compilationUnit.compilationResult);
-          //          throwSyntaxError("Don't use a keyword for class declaration [" + scanner.toStringAction(token) + "].",
-          //              typeDecl.sourceStart, typeDecl.sourceEnd);
-        }
-        getNextToken();
-        //    extends_from:
-        //             /* empty */
-        //     | T_EXTENDS fully_qualified_class_name
-        if (token == TokenNameextends) {
-          interface_extends_list(typeDecl);
-          //          getNextToken();
-          //          if (token != TokenNameIdentifier) {
-          //            throwSyntaxError("Class name expected after keyword
-          // 'extends'.",
-          //                scanner.getCurrentTokenStartPosition(), scanner
-          //                    .getCurrentTokenEndPosition());
-          //          }
-        }
-        implements_list(typeDecl);
-      } else {
-        typeDecl.name = new char[] { ' ' };
-        throwSyntaxError("Class name expected after keyword 'class'.", typeDecl.sourceStart, typeDecl.sourceEnd);
-        return;
-      }
-    }
-    //  '{' class_statement_list '}'
-    if (token == TokenNameLBRACE) {
-      getNextToken();
-      if (token != TokenNameRBRACE) {
-        ArrayList list = new ArrayList();
-        class_statement_list(list);
-        typeDecl.fields = new FieldDeclaration[list.size()];
-        for (int i = 0; i < list.size(); i++) {
-          typeDecl.fields[i] = (FieldDeclaration) list.get(i);
-        }
-      }
-      if (token == TokenNameRBRACE) {
-        typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
-        getNextToken();
-      } else {
-        throwSyntaxError("'}' expected at end of class body.");
-      }
-    } else {
-      throwSyntaxError("'{' expected at start of class body.");
-    }
-  }
-
-  private void class_entry_type() {
-    // T_CLASS
-    // | T_ABSTRACT T_CLASS
-    // | T_FINAL T_CLASS
-    if (token == TokenNameclass) {
-      getNextToken();
-    } else if (token == TokenNameabstract) {
-      checkAndSetModifiers(AccAbstract);
-      getNextToken();
-      if (token != TokenNameclass) {
-        throwSyntaxError("Keyword 'class' expected after keyword 'abstract'.");
-      }
-      getNextToken();
-    } else if (token == TokenNamefinal) {
-      checkAndSetModifiers(AccFinal);
-      getNextToken();
-      if (token != TokenNameclass) {
-        throwSyntaxError("Keyword 'class' expected after keyword 'final'.");
-      }
-      getNextToken();
-    } else {
-      throwSyntaxError("Keyword 'class' 'final' or 'abstract' expected");
-    }
-  }
-
-  private void class_extends(TypeDeclaration typeDecl) {
-    // /* empty */
-    // | T_EXTENDS interface_list
-    if (token == TokenNameextends) {
-      getNextToken();
-
-      if (token == TokenNameIdentifier) {
-        getNextToken();
-      } else {
-        throwSyntaxError("Class name expected after keyword 'extends'.");
-      }
-    }
-  }
-
-  private void interface_extends_list(TypeDeclaration typeDecl) {
-    // /* empty */
-    // | T_EXTENDS interface_list
-    if (token == TokenNameextends) {
-      getNextToken();
-      interface_list();
-    }
-  }
-
-  private void implements_list(TypeDeclaration typeDecl) {
-    // /* empty */
-    // | T_IMPLEMENTS interface_list
-    if (token == TokenNameimplements) {
-      getNextToken();
-      interface_list();
-    }
-  }
-
-  private void interface_list() {
-    //  interface_list:
-    // fully_qualified_class_name
-    //| interface_list ',' fully_qualified_class_name
-    do {
-      if (token == TokenNameIdentifier) {
-        getNextToken();
-      } else {
-        throwSyntaxError("Interface name expected after keyword 'implements'.");
-      }
-      if (token != TokenNameCOMMA) {
-        return;
-      }
-      getNextToken();
-    } while (true);
-  }
-
-  //  private void classBody(TypeDeclaration typeDecl) {
-  //    //'{' [class-element-list] '}'
-  //    if (token == TokenNameLBRACE) {
-  //      getNextToken();
-  //      if (token != TokenNameRBRACE) {
-  //        class_statement_list();
-  //      }
-  //      if (token == TokenNameRBRACE) {
-  //        typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
-  //        getNextToken();
-  //      } else {
-  //        throwSyntaxError("'}' expected at end of class body.");
-  //      }
-  //    } else {
-  //      throwSyntaxError("'{' expected at start of class body.");
-  //    }
-  //  }
-  private void class_statement_list(ArrayList list) {
-    do {
-      try {
-        class_statement(list);
-        if (token == TokenNamepublic || token == TokenNameprotected || token == TokenNameprivate || token == TokenNamestatic
-            || token == TokenNameabstract || token == TokenNamefinal || token == TokenNamefunction || token == TokenNamevar
-            || token == TokenNameconst) {
-          continue;
-        }
-        if (token == TokenNameRBRACE) {
-          break;
-        }
-        throwSyntaxError("'}' at end of class statement.");
-      } catch (SyntaxError sytaxErr1) {
-        boolean tokenize = scanner.tokenizeStrings;
-        if (!tokenize) {
-          scanner.tokenizeStrings = true;
-        }
-        try {
-          // if an error occured,
-          // try to find keywords
-          // to parse the rest of the string
-          while (token != TokenNameEOF) {
-            if (token == TokenNamepublic || token == TokenNameprotected || token == TokenNameprivate || token == TokenNamestatic
-                || token == TokenNameabstract || token == TokenNamefinal || token == TokenNamefunction || token == TokenNamevar
-                || token == TokenNameconst) {
-              break;
-            }
-            //            System.out.println(scanner.toStringAction(token));
-            getNextToken();
-          }
-          if (token == TokenNameEOF) {
-            throw sytaxErr1;
-          }
-        } finally {
-          scanner.tokenizeStrings = tokenize;
-        }
-      }
-    } while (true);
-  }
-
-  private void class_statement(ArrayList list) {
-    //    class_statement:
-    //         variable_modifiers class_variable_declaration ';'
-    // | class_constant_declaration ';'
-    // | method_modifiers T_FUNCTION is_reference T_STRING
-    //    '(' parameter_list ')' method_body
-    initializeModifiers();
-    int declarationSourceStart = scanner.getCurrentTokenStartPosition();
-
-    if (token == TokenNamevar) {
-      checkAndSetModifiers(AccPublic);
-      problemReporter.phpVarDeprecatedWarning(scanner.getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition(),
-          referenceContext, compilationUnit.compilationResult);
-      getNextToken();
-      class_variable_declaration(declarationSourceStart, list);
-    } else if (token == TokenNameconst) {
-      checkAndSetModifiers(AccFinal | AccPublic);
-      class_constant_declaration(declarationSourceStart, list);
-      if (token != TokenNameSEMICOLON) {
-        throwSyntaxError("';' expected after class const declaration.");
-      }
-      getNextToken();
-    } else {
-      boolean hasModifiers = member_modifiers();
-      if (token == TokenNamefunction) {
-        if (!hasModifiers) {
-          checkAndSetModifiers(AccPublic);
-        }
-        MethodDeclaration methodDecl = new MethodDeclaration(this.compilationUnit.compilationResult);
-        methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
-        methodDecl.modifiers = this.modifiers;
-        methodDecl.type = MethodDeclaration.METHOD_DEFINITION;
-        try {
-          getNextToken();
-          functionDefinition(methodDecl);
-        } finally {
-          int sourceEnd = scanner.getCurrentTokenStartPosition();
-          if (sourceEnd <= 0 || methodDecl.declarationSourceStart > sourceEnd) {
-            sourceEnd = methodDecl.declarationSourceStart + 1;
-          }
-          methodDecl.declarationSourceEnd = sourceEnd;
-        }
-      } else {
-        if (!hasModifiers) {
-          throwSyntaxError("'public' 'private' or 'protected' modifier expected for field declarations.");
-        }
-        class_variable_declaration(declarationSourceStart, list);
-      }
-    }
-  }
-
-  private void class_constant_declaration(int declarationSourceStart, ArrayList list) {
-    // class_constant_declaration ',' T_STRING '=' static_scalar
-    // | T_CONST T_STRING '=' static_scalar
-    if (token != TokenNameconst) {
-      throwSyntaxError("'const' keyword expected in class declaration.");
-    } else {
-      getNextToken();
-    }
-    while (true) {
-      if (token != TokenNameIdentifier) {
-        throwSyntaxError("Identifier expected in class const declaration.");
-      }
-      FieldDeclaration fieldDeclaration = new FieldDeclaration(scanner.getCurrentIdentifierSource(), scanner
-          .getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition());
-      fieldDeclaration.modifiers = this.modifiers;
-      fieldDeclaration.declarationSourceStart = declarationSourceStart;
-      fieldDeclaration.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
-      fieldDeclaration.modifiersSourceStart = declarationSourceStart;
-      //        fieldDeclaration.type
-      list.add(fieldDeclaration);
-      getNextToken();
-      if (token != TokenNameEQUAL) {
-        throwSyntaxError("'=' expected in class const declaration.");
-      }
-      getNextToken();
-      static_scalar();
-      if (token != TokenNameCOMMA) {
-        break; // while(true)-loop
-      }
-      getNextToken();
-    }
-  }
-
-  //  private void variable_modifiers() {
-  //    // variable_modifiers:
-  //    // non_empty_member_modifiers
-  //    //| T_VAR
-  //    initializeModifiers();
-  //    if (token == TokenNamevar) {
-  //      checkAndSetModifiers(AccPublic);
-  //      reportSyntaxError(
-  //          "Keyword 'var' is deprecated. Please use 'public' 'private' or
-  // 'protected'
-  // modifier for field declarations.",
-  //          scanner.getCurrentTokenStartPosition(), scanner
-  //              .getCurrentTokenEndPosition());
-  //      getNextToken();
-  //    } else {
-  //      if (!member_modifiers()) {
-  //        throwSyntaxError("'public' 'private' or 'protected' modifier expected for
-  // field declarations.");
-  //      }
-  //    }
-  //  }
-  //  private void method_modifiers() {
-  //    //method_modifiers:
-  //    // /* empty */
-  //    //| non_empty_member_modifiers
-  //    initializeModifiers();
-  //    if (!member_modifiers()) {
-  //      checkAndSetModifiers(AccPublic);
-  //    }
-  //  }
-  private boolean member_modifiers() {
-    // T_PUBLIC
-    //| T_PROTECTED
-    //| T_PRIVATE
-    //| T_STATIC
-    //| T_ABSTRACT
-    //| T_FINAL
-    boolean foundToken = false;
-    while (true) {
-      if (token == TokenNamepublic) {
-        checkAndSetModifiers(AccPublic);
-        getNextToken();
-        foundToken = true;
-      } else if (token == TokenNameprotected) {
-        checkAndSetModifiers(AccProtected);
-        getNextToken();
-        foundToken = true;
-      } else if (token == TokenNameprivate) {
-        checkAndSetModifiers(AccPrivate);
-        getNextToken();
-        foundToken = true;
-      } else if (token == TokenNamestatic) {
-        checkAndSetModifiers(AccStatic);
-        getNextToken();
-        foundToken = true;
-      } else if (token == TokenNameabstract) {
-        checkAndSetModifiers(AccAbstract);
-        getNextToken();
-        foundToken = true;
-      } else if (token == TokenNamefinal) {
-        checkAndSetModifiers(AccFinal);
-        getNextToken();
-        foundToken = true;
-      } else {
-        break;
-      }
-    }
-    return foundToken;
-  }
-
-  private void class_variable_declaration(int declarationSourceStart, ArrayList list) {
-    //    class_variable_declaration:
-    //         class_variable_declaration ',' T_VARIABLE
-    // | class_variable_declaration ',' T_VARIABLE '=' static_scalar
-    // | T_VARIABLE
-    // | T_VARIABLE '=' static_scalar
-    char[] classVariable;
-    do {
-      if (token == TokenNameVariable) {
-        classVariable = scanner.getCurrentIdentifierSource();
-        //  indexManager.addIdentifierInformation('v', classVariable, buf, -1, -1);
-        FieldDeclaration fieldDeclaration = new FieldDeclaration(classVariable, scanner.getCurrentTokenStartPosition(), scanner
-            .getCurrentTokenEndPosition());
-        fieldDeclaration.modifiers = this.modifiers;
-        fieldDeclaration.declarationSourceStart = declarationSourceStart;
-        fieldDeclaration.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
-        fieldDeclaration.modifiersSourceStart = declarationSourceStart;
-        list.add(fieldDeclaration);
-        if (fTypeVariables != null) {
-          VariableInfo info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_CLASS_UNIT);
-          fTypeVariables.put(new String(scanner.getCurrentIdentifierSource()), info);
-        }
-        getNextToken();
-        if (token == TokenNameEQUAL) {
-          getNextToken();
-          static_scalar();
-        }
-      } else {
-        //        if (token == TokenNamethis) {
-        //          throwSyntaxError("'$this' not allowed after keyword 'public'
-        // 'protected' 'private' 'var'.");
-        //        }
-        throwSyntaxError("Variable expected after keyword 'public' 'protected' 'private' 'var'.");
-      }
-      if (token != TokenNameCOMMA) {
-        break;
-      }
-      getNextToken();
-    } while (true);
-    if (token != TokenNameSEMICOLON) {
-      throwSyntaxError("';' expected after field declaration.");
-    }
-    getNextToken();
-  }
-
-  private void functionDefinition(MethodDeclaration methodDecl) {
-    boolean isAbstract = false;
-    if (astPtr == 0) {
-      if (compilationUnit != null) {
-        compilationUnit.types.add(methodDecl);
-      }
-    } else {
-      ASTNode node = astStack[astPtr];
-      if (node instanceof TypeDeclaration) {
-        TypeDeclaration typeDecl = ((TypeDeclaration) node);
-        if (typeDecl.methods == null) {
-          typeDecl.methods = new AbstractMethodDeclaration[] { methodDecl };
-        } else {
-          AbstractMethodDeclaration[] newMethods;
-          System.arraycopy(typeDecl.methods, 0, newMethods = new AbstractMethodDeclaration[typeDecl.methods.length + 1], 0,
-              typeDecl.methods.length);
-          newMethods[typeDecl.methods.length] = methodDecl;
-          typeDecl.methods = newMethods;
-        }
-        if ((typeDecl.modifiers & AccAbstract) == AccAbstract) {
-          isAbstract = true;
-        } else if ((typeDecl.modifiers & AccInterface) == AccInterface) {
-          isAbstract = true;
-        }
-      }
-    }
-    functionDeclarator(methodDecl);
-    if (token == TokenNameSEMICOLON) {
-      if (!isAbstract) {
-        throwSyntaxError("Body declaration expected for method: " + new String(methodDecl.selector));
-      }
-      getNextToken();
-      return;
-    }
-    functionBody(methodDecl);
-  }
-
-  private void functionDeclarator(MethodDeclaration methodDecl) {
-    //identifier '(' [parameter-list] ')'
-    if (token == TokenNameAND) {
-      getNextToken();
-    }
-    methodDecl.sourceStart = scanner.getCurrentTokenStartPosition();
-    methodDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
-    if (Scanner.isIdentifierOrKeyword(token)) {
-      methodDecl.selector = scanner.getCurrentIdentifierSource();
-      if (token > TokenNameKEYWORD) {
-        problemReporter.phpKeywordWarning(new String[] { scanner.toStringAction(token) }, scanner.getCurrentTokenStartPosition(),
-            scanner.getCurrentTokenEndPosition(), referenceContext, compilationUnit.compilationResult);
-      }
-      getNextToken();
-      if (token == TokenNameLPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("'(' expected in function declaration.");
-      }
-      if (token != TokenNameRPAREN) {
-        parameter_list(methodDecl);
-      }
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected in function declaration.");
-      } else {
-        methodDecl.bodyStart = scanner.getCurrentTokenEndPosition() + 1;
-        getNextToken();
-      }
-    } else {
-      methodDecl.selector = "<undefined>".toCharArray();
-      throwSyntaxError("Function name expected after keyword 'function'.");
-    }
-  }
-
-  //
-  private void parameter_list(MethodDeclaration methodDecl) {
-    // non_empty_parameter_list
-    // | /* empty */
-    non_empty_parameter_list(methodDecl, true);
-  }
-
-  private void non_empty_parameter_list(MethodDeclaration methodDecl, boolean empty_allowed) {
-    // optional_class_type T_VARIABLE
-    // | optional_class_type '&' T_VARIABLE
-    // | optional_class_type '&' T_VARIABLE '=' static_scalar
-    // | optional_class_type T_VARIABLE '=' static_scalar
-    // | non_empty_parameter_list ',' optional_class_type T_VARIABLE
-    // | non_empty_parameter_list ',' optional_class_type '&' T_VARIABLE
-    // | non_empty_parameter_list ',' optional_class_type '&' T_VARIABLE '='
-    // static_scalar
-    // | non_empty_parameter_list ',' optional_class_type T_VARIABLE '='
-    // static_scalar
-    char[] typeIdentifier = null;
-    if (token == TokenNameIdentifier || token == TokenNameVariable || token == TokenNameAND) {
-      while (true) {
-        if (token == TokenNameIdentifier) {
-          typeIdentifier = scanner.getCurrentIdentifierSource();
-          getNextToken();
-        }
-        if (token == TokenNameAND) {
-          getNextToken();
-        }
-        if (token == TokenNameVariable) {
-          if (fMethodVariables != null) {
-            VariableInfo info;
-            if (methodDecl.type == MethodDeclaration.FUNCTION_DEFINITION) {
-              info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_FUNCTION_DEFINITION);
-            } else {
-              info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_METHOD_DEFINITION);
-            }
-            info.typeIdentifier = typeIdentifier;
-            fMethodVariables.put(new String(scanner.getCurrentIdentifierSource()), info);
-          }
-          getNextToken();
-          if (token == TokenNameEQUAL) {
-            getNextToken();
-            static_scalar();
-          }
-        } else {
-          throwSyntaxError("Variable expected in parameter list.");
-        }
-        if (token != TokenNameCOMMA) {
-          break;
-        }
-        getNextToken();
-      }
-      return;
-    }
-    if (!empty_allowed) {
-      throwSyntaxError("Identifier expected in parameter list.");
-    }
-  }
-
-  private void optional_class_type() {
-    // /* empty */
-    //| T_STRING
-  }
-
-  //  private void parameterDeclaration() {
-  //    //variable
-  //    //variable-reference
-  //    if (token == TokenNameAND) {
-  //      getNextToken();
-  //      if (isVariable()) {
-  //        getNextToken();
-  //      } else {
-  //        throwSyntaxError("Variable expected after reference operator '&'.");
-  //      }
-  //    }
-  //    //variable '=' constant
-  //    if (token == TokenNameVariable) {
-  //      getNextToken();
-  //      if (token == TokenNameEQUAL) {
-  //        getNextToken();
-  //        static_scalar();
-  //      }
-  //      return;
-  //    }
-  //    // if (token == TokenNamethis) {
-  //    // throwSyntaxError("Reserved word '$this' not allowed in parameter
-  //    // declaration.");
-  //    // }
-  //  }
-
-  private void labeledStatementList() {
-    if (token != TokenNamecase && token != TokenNamedefault) {
-      throwSyntaxError("'case' or 'default' expected.");
-    }
-    do {
-      if (token == TokenNamecase) {
-        getNextToken();
-        expr(); //constant();
-        if (token == TokenNameCOLON || token == TokenNameSEMICOLON) {
-          getNextToken();
-          if (token == TokenNamecase || token == TokenNamedefault) {
-            // empty case statement ?
-            continue;
-          }
-          statementList();
-        }
-        //        else if (token == TokenNameSEMICOLON) {
-        //          setMarker(
-        //            "':' expected after 'case' keyword (Found token: " +
-        // scanner.toStringAction(token) + ")",
-        //            scanner.getCurrentTokenStartPosition(),
-        //            scanner.getCurrentTokenEndPosition(),
-        //            INFO);
-        //          getNextToken();
-        //          if (token == TokenNamecase) { // empty case statement ?
-        //            continue;
-        //          }
-        //          statementList();
-        //        }
-        else {
-          throwSyntaxError("':' character expected after 'case' constant (Found token: " + scanner.toStringAction(token) + ")");
-        }
-      } else { // TokenNamedefault
-        getNextToken();
-        if (token == TokenNameCOLON || token == TokenNameSEMICOLON) {
-          getNextToken();
-          if (token == TokenNameRBRACE) {
-            // empty default case
-            break;
-          }
-          if (token != TokenNamecase) {
-            statementList();
-          }
-        } else {
-          throwSyntaxError("':' character expected after 'default'.");
-        }
-      }
-    } while (token == TokenNamecase || token == TokenNamedefault);
-  }
-
-  //  public void labeledStatement() {
-  //    if (token == TokenNamecase) {
-  //      getNextToken();
-  //      constant();
-  //      if (token == TokenNameDDOT) {
-  //        getNextToken();
-  //        statement();
-  //      } else {
-  //        throwSyntaxError("':' character after 'case' constant expected.");
-  //      }
-  //      return;
-  //    } else if (token == TokenNamedefault) {
-  //      getNextToken();
-  //      if (token == TokenNameDDOT) {
-  //        getNextToken();
-  //        statement();
-  //      } else {
-  //        throwSyntaxError("':' character after 'default' expected.");
-  //      }
-  //      return;
-  //    }
-  //  }
-  //  public void expressionStatement() {
-  //  }
-  //  private void inclusionStatement() {
-  //  }
-  //  public void compoundStatement() {
-  //  }
-  //  public void selectionStatement() {
-  //  }
-  //
-  //  public void iterationStatement() {
-  //  }
-  //
-  //  public void jumpStatement() {
-  //  }
-  //
-  //  public void outputStatement() {
-  //  }
-  //
-  //  public void scopeStatement() {
-  //  }
-  //
-  //  public void flowStatement() {
-  //  }
-  //
-  //  public void definitionStatement() {
-  //  }
-  private void ifStatement() {
-    // ':' statement-list [elseif-list] [else-colon-statement] 'endif' ';'
-    if (token == TokenNameCOLON) {
-      getNextToken();
-      if (token != TokenNameendif) {
-        statementList();
-        switch (token) {
-        case TokenNameelse:
-          getNextToken();
-          if (token == TokenNameCOLON) {
-            getNextToken();
-            if (token != TokenNameendif) {
-              statementList();
-            }
-          } else {
-            if (token == TokenNameif) { //'else if'
-              getNextToken();
-              elseifStatementList();
-            } else {
-              throwSyntaxError("':' expected after 'else'.");
-            }
-          }
-          break;
-        case TokenNameelseif:
-          getNextToken();
-          elseifStatementList();
-          break;
-        }
-      }
-      if (token != TokenNameendif) {
-        throwSyntaxError("'endif' expected.");
-      }
-      getNextToken();
-      if (token != TokenNameSEMICOLON) {
-        throwSyntaxError("';' expected after if-statement.");
-      }
-      getNextToken();
-    } else {
-      // statement [else-statement]
-      statement(TokenNameEOF);
-      if (token == TokenNameelseif) {
-        getNextToken();
-        if (token == TokenNameLPAREN) {
-          getNextToken();
-        } else {
-          throwSyntaxError("'(' expected after 'elseif' keyword.");
-        }
-        expr();
-        if (token == TokenNameRPAREN) {
-          getNextToken();
-        } else {
-          throwSyntaxError("')' expected after 'elseif' condition.");
-        }
-        ifStatement();
-      } else if (token == TokenNameelse) {
-        getNextToken();
-        statement(TokenNameEOF);
-      }
-    }
-  }
-
-  private void elseifStatementList() {
-    do {
-      elseifStatement();
-      switch (token) {
-      case TokenNameelse:
-        getNextToken();
-        if (token == TokenNameCOLON) {
-          getNextToken();
-          if (token != TokenNameendif) {
-            statementList();
-          }
-          return;
-        } else {
-          if (token == TokenNameif) { //'else if'
-            getNextToken();
-          } else {
-            throwSyntaxError("':' expected after 'else'.");
-          }
-        }
-        break;
-      case TokenNameelseif:
-        getNextToken();
-        break;
-      default:
-        return;
-      }
-    } while (true);
-  }
-
-  private void elseifStatement() {
-    if (token == TokenNameLPAREN) {
-      getNextToken();
-      expr();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected in else-if-statement.");
-      }
-      getNextToken();
-      if (token != TokenNameCOLON) {
-        throwSyntaxError("':' expected in else-if-statement.");
-      }
-      getNextToken();
-      if (token != TokenNameendif) {
-        statementList();
-      }
-    }
-  }
-
-  private void switchStatement() {
-    if (token == TokenNameCOLON) {
-      // ':' [labeled-statement-list] 'endswitch' ';'
-      getNextToken();
-      labeledStatementList();
-      if (token != TokenNameendswitch) {
-        throwSyntaxError("'endswitch' expected.");
-      }
-      getNextToken();
-      if (token != TokenNameSEMICOLON) {
-        throwSyntaxError("';' expected after switch-statement.");
-      }
-      getNextToken();
-    } else {
-      // '{' [labeled-statement-list] '}'
-      if (token != TokenNameLBRACE) {
-        throwSyntaxError("'{' expected in switch statement.");
-      }
-      getNextToken();
-      if (token != TokenNameRBRACE) {
-        labeledStatementList();
-      }
-      if (token != TokenNameRBRACE) {
-        throwSyntaxError("'}' expected in switch statement.");
-      }
-      getNextToken();
-    }
-  }
-
-  private void forStatement() {
-    if (token == TokenNameCOLON) {
-      getNextToken();
-      statementList();
-      if (token != TokenNameendfor) {
-        throwSyntaxError("'endfor' expected.");
-      }
-      getNextToken();
-      if (token != TokenNameSEMICOLON) {
-        throwSyntaxError("';' expected after for-statement.");
-      }
-      getNextToken();
-    } else {
-      statement(TokenNameEOF);
-    }
-  }
-
-  private void whileStatement() {
-    // ':' statement-list 'endwhile' ';'
-    if (token == TokenNameCOLON) {
-      getNextToken();
-      statementList();
-      if (token != TokenNameendwhile) {
-        throwSyntaxError("'endwhile' expected.");
-      }
-      getNextToken();
-      if (token != TokenNameSEMICOLON) {
-        throwSyntaxError("';' expected after while-statement.");
-      }
-      getNextToken();
-    } else {
-      statement(TokenNameEOF);
-    }
-  }
-
-  private void foreachStatement() {
-    if (token == TokenNameCOLON) {
-      getNextToken();
-      statementList();
-      if (token != TokenNameendforeach) {
-        throwSyntaxError("'endforeach' expected.");
-      }
-      getNextToken();
-      if (token != TokenNameSEMICOLON) {
-        throwSyntaxError("';' expected after foreach-statement.");
-      }
-      getNextToken();
-    } else {
-      statement(TokenNameEOF);
-    }
-  }
-
-  //  private void exitStatus() {
-  //    if (token == TokenNameLPAREN) {
-  //      getNextToken();
-  //    } else {
-  //      throwSyntaxError("'(' expected in 'exit-status'.");
-  //    }
-  //    if (token != TokenNameRPAREN) {
-  //      expression();
-  //    }
-  //    if (token == TokenNameRPAREN) {
-  //      getNextToken();
-  //    } else {
-  //      throwSyntaxError("')' expected after 'exit-status'.");
-  //    }
-  //  }
-  private void expressionList() {
-    do {
-      expr();
-      if (token == TokenNameCOMMA) {
-        getNextToken();
-      } else {
-        break;
-      }
-    } while (true);
-  }
-
-  private Expression expr() {
-    // r_variable
-    // | expr_without_variable
-    //    if (token!=TokenNameEOF) {
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: expr()");
-    }
-    return expr_without_variable(true);
-    //    }
-  }
-
-  private Expression expr_without_variable(boolean only_variable) {
-    int exprSourceStart = scanner.getCurrentTokenStartPosition();
-    int exprSourceEnd = scanner.getCurrentTokenEndPosition();
-    Expression expression = new Expression();
-    expression.sourceStart = exprSourceStart;
-    // default, may be overwritten
-    expression.sourceEnd = exprSourceEnd;
-    try {
-      //               internal_functions_in_yacc
-      //       | T_CLONE expr
-      //       | T_PRINT expr
-      //       | '(' expr ')'
-      //       | '@' expr
-      //       | '+' expr
-      //       | '-' expr
-      //       | '!' expr
-      //       | '~' expr
-      //       | T_INC rw_variable
-      //       | T_DEC rw_variable
-      //       | T_INT_CAST expr
-      //       | T_DOUBLE_CAST expr
-      //       | T_STRING_CAST expr
-      //       | T_ARRAY_CAST expr
-      //       | T_OBJECT_CAST expr
-      //       | T_BOOL_CAST expr
-      //       | T_UNSET_CAST expr
-      //       | T_EXIT exit_expr
-      //       | scalar
-      //       | T_ARRAY '(' array_pair_list ')'
-      //       | '`' encaps_list '`'
-      //       | T_LIST '(' assignment_list ')' '=' expr
-      //       | T_NEW class_name_reference ctor_arguments
-      //       | variable '=' expr
-      //       | variable '=' '&' variable
-      //       | variable '=' '&' T_NEW class_name_reference ctor_arguments
-      //       | variable T_PLUS_EQUAL expr
-      //       | variable T_MINUS_EQUAL expr
-      //       | variable T_MUL_EQUAL expr
-      //       | variable T_DIV_EQUAL expr
-      //       | variable T_CONCAT_EQUAL expr
-      //       | variable T_MOD_EQUAL expr
-      //       | variable T_AND_EQUAL expr
-      //       | variable T_OR_EQUAL expr
-      //       | variable T_XOR_EQUAL expr
-      //       | variable T_SL_EQUAL expr
-      //       | variable T_SR_EQUAL expr
-      //       | rw_variable T_INC
-      //       | rw_variable T_DEC
-      //       | expr T_BOOLEAN_OR expr
-      //       | expr T_BOOLEAN_AND expr
-      //       | expr T_LOGICAL_OR expr
-      //       | expr T_LOGICAL_AND expr
-      //       | expr T_LOGICAL_XOR expr
-      //       | expr '|' expr
-      //       | expr '&' expr
-      //       | expr '^' expr
-      //       | expr '.' expr
-      //       | expr '+' expr
-      //       | expr '-' expr
-      //       | expr '*' expr
-      //       | expr '/' expr
-      //       | expr '%' expr
-      //       | expr T_SL expr
-      //       | expr T_SR expr
-      //       | expr T_IS_IDENTICAL expr
-      //       | expr T_IS_NOT_IDENTICAL expr
-      //       | expr T_IS_EQUAL expr
-      //       | expr T_IS_NOT_EQUAL expr
-      //       | expr '<' expr
-      //       | expr T_IS_SMALLER_OR_EQUAL expr
-      //       | expr '>' expr
-      //       | expr T_IS_GREATER_OR_EQUAL expr
-      //       | expr T_INSTANCEOF class_name_reference
-      //       | expr '?' expr ':' expr
-      if (Scanner.TRACE) {
-        System.out.println("TRACE: expr_without_variable() PART 1");
-      }
-      switch (token) {
-      case TokenNameisset:
-      case TokenNameempty:
-      case TokenNameeval:
-      case TokenNameinclude:
-      case TokenNameinclude_once:
-      case TokenNamerequire:
-      case TokenNamerequire_once:
-        internal_functions_in_yacc();
-        break;
-      //       | '(' expr ')'
-      case TokenNameLPAREN:
-        getNextToken();
-        expr();
-        if (token == TokenNameRPAREN) {
-          getNextToken();
-        } else {
-          throwSyntaxError("')' expected in expression.");
-        }
-        break;
-      //    | T_CLONE expr
-      //    | T_PRINT expr
-      //    | '@' expr
-      //    | '+' expr
-      //    | '-' expr
-      //    | '!' expr
-      //    | '~' expr
-      //    | T_INT_CAST expr
-      //       | T_DOUBLE_CAST expr
-      //       | T_STRING_CAST expr
-      //       | T_ARRAY_CAST expr
-      //       | T_OBJECT_CAST expr
-      //       | T_BOOL_CAST expr
-      //       | T_UNSET_CAST expr
-      case TokenNameclone:
-      case TokenNameprint:
-      case TokenNameAT:
-      case TokenNamePLUS:
-      case TokenNameMINUS:
-      case TokenNameNOT:
-      case TokenNameTWIDDLE:
-      case TokenNameintCAST:
-      case TokenNamedoubleCAST:
-      case TokenNamestringCAST:
-      case TokenNamearrayCAST:
-      case TokenNameobjectCAST:
-      case TokenNameboolCAST:
-      case TokenNameunsetCAST:
-        getNextToken();
-        expr();
-        break;
-      case TokenNameexit:
-        getNextToken();
-        exit_expr();
-        break;
-      //  scalar:
-      //       T_STRING
-      //| T_STRING_VARNAME
-      //| class_constant
-      //| T_START_HEREDOC encaps_list T_END_HEREDOC
-      //       | '`' encaps_list '`'
-      //  | common_scalar
-      //       | '`' encaps_list '`'
-      case TokenNameEncapsedString0:
-        scanner.encapsedStringStack.push(new Character('`'));
-        getNextToken();
-        try {
-          if (token == TokenNameEncapsedString0) {
-          } else {
-            encaps_list();
-            if (token != TokenNameEncapsedString0) {
-              throwSyntaxError("\'`\' expected at end of string" + "(Found token: " + scanner.toStringAction(token) + " )");
-            }
-          }
-        } finally {
-          scanner.encapsedStringStack.pop();
-          getNextToken();
-        }
-        break;
-      //      | '\'' encaps_list '\''
-      case TokenNameEncapsedString1:
-        scanner.encapsedStringStack.push(new Character('\''));
-        getNextToken();
-        try {
-          exprSourceStart = scanner.getCurrentTokenStartPosition();
-          if (token == TokenNameEncapsedString1) {
-            expression = new StringLiteralSQ(scanner.getCurrentStringLiteralSource(exprSourceStart), exprSourceStart, scanner
-                .getCurrentTokenEndPosition());
-          } else {
-            encaps_list();
-            if (token != TokenNameEncapsedString1) {
-              throwSyntaxError("\'\'\' expected at end of string" + "(Found token: " + scanner.toStringAction(token) + " )");
-            } else {
-              expression = new StringLiteralSQ(scanner.getCurrentStringLiteralSource(exprSourceStart), exprSourceStart, scanner
-                  .getCurrentTokenEndPosition());
-            }
-          }
-        } finally {
-          scanner.encapsedStringStack.pop();
-          getNextToken();
-        }
-        break;
-      //| '"' encaps_list '"'
-      case TokenNameEncapsedString2:
-        scanner.encapsedStringStack.push(new Character('"'));
-        getNextToken();
-        try {
-          exprSourceStart = scanner.getCurrentTokenStartPosition();
-          if (token == TokenNameEncapsedString2) {
-            expression = new StringLiteralDQ(scanner.getCurrentStringLiteralSource(exprSourceStart), exprSourceStart, scanner
-                .getCurrentTokenEndPosition());
-          } else {
-            encaps_list();
-            if (token != TokenNameEncapsedString2) {
-              throwSyntaxError("'\"' expected at end of string" + "(Found token: " + scanner.toStringAction(token) + " )");
-            } else {
-              expression = new StringLiteralDQ(scanner.getCurrentStringLiteralSource(exprSourceStart), exprSourceStart, scanner
-                  .getCurrentTokenEndPosition());
-            }
-          }
-        } finally {
-          scanner.encapsedStringStack.pop();
-          getNextToken();
-        }
-        break;
-      case TokenNameStringDoubleQuote:
-        expression = new StringLiteralDQ(scanner.getCurrentStringLiteralSource(), scanner.getCurrentTokenStartPosition(), scanner
-            .getCurrentTokenEndPosition());
-        common_scalar();
-        break;
-      case TokenNameStringSingleQuote:
-        expression = new StringLiteralSQ(scanner.getCurrentStringLiteralSource(), scanner.getCurrentTokenStartPosition(), scanner
-            .getCurrentTokenEndPosition());
-        common_scalar();
-        break;
-      case TokenNameIntegerLiteral:
-      case TokenNameDoubleLiteral:
-      case TokenNameStringInterpolated:
-      case TokenNameFILE:
-      case TokenNameLINE:
-      case TokenNameCLASS_C:
-      case TokenNameMETHOD_C:
-      case TokenNameFUNC_C:
-        common_scalar();
-        break;
-      case TokenNameHEREDOC:
-        getNextToken();
-        break;
-      case TokenNamearray:
-        //    T_ARRAY '(' array_pair_list ')'
-        getNextToken();
-        if (token == TokenNameLPAREN) {
-          getNextToken();
-          if (token == TokenNameRPAREN) {
-            getNextToken();
-            break;
-          }
-          array_pair_list();
-          if (token != TokenNameRPAREN) {
-            throwSyntaxError("')' or ',' expected after keyword 'array'" + "(Found token: " + scanner.toStringAction(token) + ")");
-          }
-          getNextToken();
-        } else {
-          throwSyntaxError("'(' expected after keyword 'array'" + "(Found token: " + scanner.toStringAction(token) + ")");
-        }
-        break;
-      case TokenNamelist:
-        //    | T_LIST '(' assignment_list ')' '=' expr
-        getNextToken();
-        if (token == TokenNameLPAREN) {
-          getNextToken();
-          assignment_list();
-          if (token != TokenNameRPAREN) {
-            throwSyntaxError("')' expected after 'list' keyword.");
-          }
-          getNextToken();
-          if (token != TokenNameEQUAL) {
-            throwSyntaxError("'=' expected after 'list' keyword.");
-          }
-          getNextToken();
-          expr();
-        } else {
-          throwSyntaxError("'(' expected after 'list' keyword.");
-        }
-        break;
-      case TokenNamenew:
-        //     | T_NEW class_name_reference ctor_arguments
-        getNextToken();
-        Expression typeRef = class_name_reference();
-        ctor_arguments();
-        if (typeRef != null) {
-          expression = typeRef;
-        }
-        break;
-      //       | T_INC rw_variable
-      //       | T_DEC rw_variable
-      case TokenNamePLUS_PLUS:
-      case TokenNameMINUS_MINUS:
-        getNextToken();
-        rw_variable();
-        break;
-      //       | variable '=' expr
-      //       | variable '=' '&' variable
-      //       | variable '=' '&' T_NEW class_name_reference ctor_arguments
-      //       | variable T_PLUS_EQUAL expr
-      //       | variable T_MINUS_EQUAL expr
-      //       | variable T_MUL_EQUAL expr
-      //       | variable T_DIV_EQUAL expr
-      //       | variable T_CONCAT_EQUAL expr
-      //       | variable T_MOD_EQUAL expr
-      //       | variable T_AND_EQUAL expr
-      //       | variable T_OR_EQUAL expr
-      //       | variable T_XOR_EQUAL expr
-      //       | variable T_SL_EQUAL expr
-      //       | variable T_SR_EQUAL expr
-      //       | rw_variable T_INC
-      //       | rw_variable T_DEC
-      case TokenNameIdentifier:
-      case TokenNameVariable:
-      case TokenNameDOLLAR:
-        boolean rememberedVar = false;
-        Expression lhs = variable();
-        switch (token) {
-        case TokenNameEQUAL:
-          getNextToken();
-          if (token == TokenNameAND) {
-            getNextToken();
-            if (token == TokenNamenew) {
-              // | variable '=' '&' T_NEW class_name_reference
-              // ctor_arguments
-              getNextToken();
-              SingleTypeReference classRef = class_name_reference();
-              ctor_arguments();
-              if (classRef != null) {
-                if (lhs != null && lhs instanceof FieldReference) {
-                  // example:
-                  // $var = & new Object();
-                  if (fMethodVariables != null) {
-                    VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
-                    lhsInfo.reference = classRef;
-                    lhsInfo.typeIdentifier = classRef.token;
-                    fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
-                    rememberedVar = true;
-                  }
-                }
-              }
-            } else {
-              Expression rhs = variable();
-              if (rhs != null && rhs instanceof FieldReference && lhs != null && lhs instanceof FieldReference) {
-                // example:
-                // $var = &$ref;
-                if (fMethodVariables != null) {
-                  VariableInfo rhsInfo = (VariableInfo) fMethodVariables.get(((FieldReference) rhs).token);
-                  if (rhsInfo != null && rhsInfo.reference != null) {
-                    VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
-                    lhsInfo.reference = rhsInfo.reference;
-                    lhsInfo.typeIdentifier = rhsInfo.typeIdentifier;
-                    fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
-                    rememberedVar = true;
-                  }
-                }
-              }
-            }
-          } else {
-            Expression rhs = expr();
-            if (lhs != null && lhs instanceof FieldReference) {
-              if (rhs != null && rhs instanceof FieldReference) {
-                // example:
-                // $var = $ref;
-                if (fMethodVariables != null) {
-                  VariableInfo rhsInfo = (VariableInfo) fMethodVariables.get(((FieldReference) rhs).token);
-                  if (rhsInfo != null && rhsInfo.reference != null) {
-                    VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
-                    lhsInfo.reference = rhsInfo.reference;
-                    lhsInfo.typeIdentifier = rhsInfo.typeIdentifier;
-                    fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
-                    rememberedVar = true;
-                  }
-                }
-              } else if (rhs != null && rhs instanceof SingleTypeReference) {
-                // example:
-                // $var = new Object();
-                if (fMethodVariables != null) {
-                  VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
-                  lhsInfo.reference = (SingleTypeReference) rhs;
-                  lhsInfo.typeIdentifier = ((SingleTypeReference) rhs).token;
-                  fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
-                  rememberedVar = true;
-                }
-              }
-            }
-          }
-          if (rememberedVar == false && lhs != null && lhs instanceof FieldReference) {
-            if (fMethodVariables != null) {
-              VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
-              fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
-            }
-          }
-          break;
-        case TokenNamePLUS_EQUAL:
-        case TokenNameMINUS_EQUAL:
-        case TokenNameMULTIPLY_EQUAL:
-        case TokenNameDIVIDE_EQUAL:
-        case TokenNameDOT_EQUAL:
-        case TokenNameREMAINDER_EQUAL:
-        case TokenNameAND_EQUAL:
-        case TokenNameOR_EQUAL:
-        case TokenNameXOR_EQUAL:
-        case TokenNameRIGHT_SHIFT_EQUAL:
-        case TokenNameLEFT_SHIFT_EQUAL:
-          getNextToken();
-          expr();
-          break;
-        case TokenNamePLUS_PLUS:
-        case TokenNameMINUS_MINUS:
-          getNextToken();
-          break;
-        default:
-          if (!only_variable) {
-            throwSyntaxError("Variable expression not allowed (found token '" + scanner.toStringAction(token) + "').");
-          }
-          if (lhs != null) {
-            expression = lhs;
-          }
-        }
-        break;
-      default:
-        if (token != TokenNameINLINE_HTML) {
-          if (token > TokenNameKEYWORD) {
-            getNextToken();
-            break;
-          } else {
-            throwSyntaxError("Error in expression (found token '" + scanner.toStringAction(token) + "').");
-          }
-        }
-        return expression;
-      }
-      if (Scanner.TRACE) {
-        System.out.println("TRACE: expr_without_variable() PART 2");
-      }
-      //       | expr T_BOOLEAN_OR expr
-      //       | expr T_BOOLEAN_AND expr
-      //       | expr T_LOGICAL_OR expr
-      //       | expr T_LOGICAL_AND expr
-      //       | expr T_LOGICAL_XOR expr
-      //       | expr '|' expr
-      //       | expr '&' expr
-      //       | expr '^' expr
-      //       | expr '.' expr
-      //       | expr '+' expr
-      //       | expr '-' expr
-      //       | expr '*' expr
-      //       | expr '/' expr
-      //       | expr '%' expr
-      //       | expr T_SL expr
-      //       | expr T_SR expr
-      //       | expr T_IS_IDENTICAL expr
-      //       | expr T_IS_NOT_IDENTICAL expr
-      //       | expr T_IS_EQUAL expr
-      //       | expr T_IS_NOT_EQUAL expr
-      //       | expr '<' expr
-      //       | expr T_IS_SMALLER_OR_EQUAL expr
-      //       | expr '>' expr
-      //       | expr T_IS_GREATER_OR_EQUAL expr
-      while (true) {
-        switch (token) {
-        case TokenNameOR_OR:
-          getNextToken();
-          expression = new OR_OR_Expression(expression, expr(), token);
-          break;
-        case TokenNameAND_AND:
-          getNextToken();
-          expression = new AND_AND_Expression(expression, expr(), token);
-          break;
-        case TokenNameEQUAL_EQUAL:
-          getNextToken();
-          expression = new EqualExpression(expression, expr(), token);
-          break;
-        case TokenNameand:
-        case TokenNameor:
-        case TokenNamexor:
-        case TokenNameAND:
-        case TokenNameOR:
-        case TokenNameXOR:
-        case TokenNameDOT:
-        case TokenNamePLUS:
-        case TokenNameMINUS:
-        case TokenNameMULTIPLY:
-        case TokenNameDIVIDE:
-        case TokenNameREMAINDER:
-        case TokenNameLEFT_SHIFT:
-        case TokenNameRIGHT_SHIFT:
-        case TokenNameEQUAL_EQUAL_EQUAL:
-        case TokenNameNOT_EQUAL_EQUAL:
-        case TokenNameNOT_EQUAL:
-        case TokenNameLESS:
-        case TokenNameLESS_EQUAL:
-        case TokenNameGREATER:
-        case TokenNameGREATER_EQUAL:
-          getNextToken();
-          expression = new BinaryExpression(expression, expr(), token);
-          break;
-        //  | expr T_INSTANCEOF class_name_reference
-        //     | expr '?' expr ':' expr
-        case TokenNameinstanceof:
-          getNextToken();
-          TypeReference classRef = class_name_reference();
-          expression = new InstanceOfExpression(expression, classRef, OperatorIds.INSTANCEOF);
-          expression.sourceStart = exprSourceStart;
-          expression.sourceEnd = scanner.getCurrentTokenEndPosition();
-          break;
-        case TokenNameQUESTION:
-          getNextToken();
-          Expression valueIfTrue = expr();
-          if (token != TokenNameCOLON) {
-            throwSyntaxError("':' expected in conditional expression.");
-          }
-          getNextToken();
-          Expression valueIfFalse = expr();
-
-          expression = new ConditionalExpression(expression, valueIfTrue, valueIfFalse);
-          break;
-        default:
-          return expression;
-        }
-      }
-    } catch (SyntaxError e) {
-      // try to find next token after expression with errors:
-      if (token == TokenNameSEMICOLON) {
-        getNextToken();
-        return expression;
-      }
-      if (token == TokenNameRBRACE || token == TokenNameRPAREN || token == TokenNameRBRACKET) {
-        getNextToken();
-        return expression;
-      }
-      throw e;
-    }
-  }
-
-  private SingleTypeReference class_name_reference() {
-    //  class_name_reference:
-    // T_STRING
-    //| dynamic_class_name_reference
-    SingleTypeReference ref = null;
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: class_name_reference()");
-    }
-    if (token == TokenNameIdentifier) {
-      ref = new SingleTypeReference(scanner.getCurrentIdentifierSource(), scanner.getCurrentTokenStartPosition());
-      getNextToken();
-    } else {
-      ref = null;
-      dynamic_class_name_reference();
-    }
-    return ref;
-  }
-
-  private void dynamic_class_name_reference() {
-    //dynamic_class_name_reference:
-    // base_variable T_OBJECT_OPERATOR object_property
-    // dynamic_class_name_variable_properties
-    //| base_variable
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: dynamic_class_name_reference()");
-    }
-    base_variable();
-    if (token == TokenNameMINUS_GREATER) {
-      getNextToken();
-      object_property();
-      dynamic_class_name_variable_properties();
-    }
-  }
-
-  private void dynamic_class_name_variable_properties() {
-    //  dynamic_class_name_variable_properties:
-    //                 dynamic_class_name_variable_properties
-    // dynamic_class_name_variable_property
-    //         | /* empty */
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: dynamic_class_name_variable_properties()");
-    }
-    while (token == TokenNameMINUS_GREATER) {
-      dynamic_class_name_variable_property();
-    }
-  }
-
-  private void dynamic_class_name_variable_property() {
-    //  dynamic_class_name_variable_property:
-    // T_OBJECT_OPERATOR object_property
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: dynamic_class_name_variable_property()");
-    }
-    if (token == TokenNameMINUS_GREATER) {
-      getNextToken();
-      object_property();
-    }
-  }
-
-  private void ctor_arguments() {
-    //  ctor_arguments:
-    // /* empty */
-    //| '(' function_call_parameter_list ')'
-    if (token == TokenNameLPAREN) {
-      getNextToken();
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-        return;
-      }
-      non_empty_function_call_parameter_list();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected in ctor_arguments.");
-      }
-      getNextToken();
-    }
-  }
-
-  private void assignment_list() {
-    //  assignment_list:
-    // assignment_list ',' assignment_list_element
-    //| assignment_list_element
-    while (true) {
-      assignment_list_element();
-      if (token != TokenNameCOMMA) {
-        break;
-      }
-      getNextToken();
-    }
-  }
-
-  private void assignment_list_element() {
-    //assignment_list_element:
-    // variable
-    //| T_LIST '(' assignment_list ')'
-    //| /* empty */
-    if (token == TokenNameVariable || token == TokenNameDOLLAR) {
-      variable();
-    } else {
-      if (token == TokenNamelist) {
-        getNextToken();
-        if (token == TokenNameLPAREN) {
-          getNextToken();
-          assignment_list();
-          if (token != TokenNameRPAREN) {
-            throwSyntaxError("')' expected after 'list' keyword.");
-          }
-          getNextToken();
-        } else {
-          throwSyntaxError("'(' expected after 'list' keyword.");
-        }
-      }
-    }
-  }
-
-  private void array_pair_list() {
-    //  array_pair_list:
-    // /* empty */
-    //| non_empty_array_pair_list possible_comma
-    non_empty_array_pair_list();
-    if (token == TokenNameCOMMA) {
-      getNextToken();
-    }
-  }
-
-  private void non_empty_array_pair_list() {
-    //non_empty_array_pair_list:
-    // non_empty_array_pair_list ',' expr T_DOUBLE_ARROW expr
-    //| non_empty_array_pair_list ',' expr
-    //| expr T_DOUBLE_ARROW expr
-    //| expr
-    //| non_empty_array_pair_list ',' expr T_DOUBLE_ARROW '&' w_variable
-    //| non_empty_array_pair_list ',' '&' w_variable
-    //| expr T_DOUBLE_ARROW '&' w_variable
-    //| '&' w_variable
-    while (true) {
-      if (token == TokenNameAND) {
-        getNextToken();
-        variable();
-      } else {
-        expr();
-        if (token == TokenNameAND) {
-          getNextToken();
-          variable();
-        } else if (token == TokenNameEQUAL_GREATER) {
-          getNextToken();
-          if (token == TokenNameAND) {
-            getNextToken();
-            variable();
-          } else {
-            expr();
-          }
-        }
-      }
-      if (token != TokenNameCOMMA) {
-        return;
-      }
-      getNextToken();
-      if (token == TokenNameRPAREN) {
-        return;
-      }
-    }
-  }
-
-  //  private void variableList() {
-  //    do {
-  //      variable();
-  //      if (token == TokenNameCOMMA) {
-  //        getNextToken();
-  //      } else {
-  //        break;
-  //      }
-  //    } while (true);
-  //  }
-  private Expression variable_without_objects() {
-    //  variable_without_objects:
-    //                 reference_variable
-    //         | simple_indirect_reference reference_variable
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: variable_without_objects()");
-    }
-    while (token == TokenNameDOLLAR) {
-      getNextToken();
-    }
-    return reference_variable();
-  }
-
-  private Expression function_call() {
-    //  function_call:
-    // T_STRING '(' function_call_parameter_list ')'
-    //| class_constant '(' function_call_parameter_list ')'
-    //| static_member '(' function_call_parameter_list ')'
-    //| variable_without_objects '(' function_call_parameter_list ')'
-    char[] defineName = null;
-    char[] ident = null;
-    int startPos = 0;
-    int endPos = 0;
-    Expression ref = null;
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: function_call()");
-    }
-    if (token == TokenNameIdentifier) {
-      ident = scanner.getCurrentIdentifierSource();
-      defineName = ident;
-      startPos = scanner.getCurrentTokenStartPosition();
-      endPos = scanner.getCurrentTokenEndPosition();
-      getNextToken();
-      switch (token) {
-      case TokenNamePAAMAYIM_NEKUDOTAYIM:
-        // static member:
-        defineName = null;
-        getNextToken();
-        if (token == TokenNameIdentifier) {
-          // class _constant
-          getNextToken();
-        } else {
-          //        static member:
-          variable_without_objects();
-        }
-        break;
-      }
-    } else {
-      ref = variable_without_objects();
-    }
-    if (token != TokenNameLPAREN) {
-      if (defineName != null) {
-        // does this identifier contain only uppercase characters?
-        if (defineName.length == 3) {
-          if (defineName[0] == 'd' && defineName[1] == 'i' && defineName[2] == 'e') {
-            defineName = null;
-          }
-        } else if (defineName.length == 4) {
-          if (defineName[0] == 't' && defineName[1] == 'r' && defineName[2] == 'u' && defineName[3] == 'e') {
-            defineName = null;
-          } else if (defineName[0] == 'n' && defineName[1] == 'u' && defineName[2] == 'l' && defineName[3] == 'l') {
-            defineName = null;
-          }
-        } else if (defineName.length == 5) {
-          if (defineName[0] == 'f' && defineName[1] == 'a' && defineName[2] == 'l' && defineName[3] == 's' && defineName[4] == 'e') {
-            defineName = null;
-          }
-        }
-        if (defineName != null) {
-          for (int i = 0; i < defineName.length; i++) {
-            if (Character.isLowerCase(defineName[i])) {
-              problemReporter.phpUppercaseIdentifierWarning(startPos, endPos, referenceContext, compilationUnit.compilationResult);
-              break;
-            }
-          }
-        }
-      }
-      // TODO is this ok ?
-      return ref;
-      //      throwSyntaxError("'(' expected in function call.");
-    }
-    getNextToken();
-    if (token == TokenNameRPAREN) {
-      getNextToken();
-      return ref;
-    }
-    non_empty_function_call_parameter_list();
-    if (token != TokenNameRPAREN) {
-      String functionName;
-      if (ident == null) {
-        functionName = new String(" ");
-      } else {
-        functionName = new String(ident);
-      }
-      throwSyntaxError("')' expected in function call (" + functionName + ").");
-    }
-    getNextToken();
-    return ref;
-  }
-
-  //  private void function_call_parameter_list() {
-  //    function_call_parameter_list:
-  //           non_empty_function_call_parameter_list { $$ = $1; }
-  //   | /* empty */
-  //  }
-  private void non_empty_function_call_parameter_list() {
-    //non_empty_function_call_parameter_list:
-    //         expr_without_variable
-    // | variable
-    // | '&' w_variable
-    // | non_empty_function_call_parameter_list ',' expr_without_variable
-    // | non_empty_function_call_parameter_list ',' variable
-    // | non_empty_function_call_parameter_list ',' '&' w_variable
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: non_empty_function_call_parameter_list()");
-    }
-    while (true) {
-      if (token == TokenNameAND) {
-        getNextToken();
-        w_variable();
-      } else {
-        //        if (token == TokenNameIdentifier || token ==
-        // TokenNameVariable
-        //            || token == TokenNameDOLLAR) {
-        //          variable();
-        //        } else {
-        expr_without_variable(true);
-        //        }
-      }
-      if (token != TokenNameCOMMA) {
-        break;
-      }
-      getNextToken();
-    }
-  }
-
-  private void fully_qualified_class_name() {
-    if (token == TokenNameIdentifier) {
-      getNextToken();
-    } else {
-      throwSyntaxError("Class name expected.");
-    }
-  }
-
-  private void static_member() {
-    //  static_member:
-    // fully_qualified_class_name T_PAAMAYIM_NEKUDOTAYIM
-    // variable_without_objects
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: static_member()");
-    }
-    fully_qualified_class_name();
-    if (token != TokenNamePAAMAYIM_NEKUDOTAYIM) {
-      throwSyntaxError("'::' expected after class name (static_member).");
-    }
-    getNextToken();
-    variable_without_objects();
-  }
-
-  private Expression base_variable_with_function_calls() {
-    //  base_variable_with_function_calls:
-    // base_variable
-    //| function_call
-    boolean functionCall = false;
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: base_variable_with_function_calls()");
-    }
-    //    if (token == TokenNameIdentifier) {
-    //      functionCall = true;
-    //    } else if (token == TokenNameVariable) {
-    //      int tempToken = token;
-    //      int tempPosition = scanner.currentPosition;
-    //      getNextToken();
-    //      if (token == TokenNameLPAREN) {
-    //        functionCall = true;
-    //      }
-    //      token = tempToken;
-    //      scanner.currentPosition = tempPosition;
-    //      scanner.phpMode = true;
-    //    }
-    //    if (functionCall) {
-    return function_call();
-    //    } else {
-    //      base_variable();
-    //    }
-  }
-
-  private Expression base_variable() {
-    //  base_variable:
-    //                 reference_variable
-    //         | simple_indirect_reference reference_variable
-    //         | static_member
-    Expression ref = null;
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: base_variable()");
-    }
-    if (token == TokenNameIdentifier) {
-      static_member();
-    } else {
-      while (token == TokenNameDOLLAR) {
-        getNextToken();
-      }
-      reference_variable();
-    }
-    return ref;
-  }
-
-  //  private void simple_indirect_reference() {
-  //    // simple_indirect_reference:
-  //    // '$'
-  //    //| simple_indirect_reference '$'
-  //  }
-  private Expression reference_variable() {
-    //  reference_variable:
-    //                 reference_variable '[' dim_offset ']'
-    //         | reference_variable '{' expr '}'
-    //         | compound_variable
-    Expression ref = null;
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: reference_variable()");
-    }
-    ref = compound_variable();
-    while (true) {
-      if (token == TokenNameLBRACE) {
-        ref = null;
-        getNextToken();
-        expr();
-        if (token != TokenNameRBRACE) {
-          throwSyntaxError("'}' expected in reference variable.");
-        }
-        getNextToken();
-      } else if (token == TokenNameLBRACKET) {
-        ref = null;
-        getNextToken();
-        if (token != TokenNameRBRACKET) {
-          expr();
-          //        dim_offset();
-          if (token != TokenNameRBRACKET) {
-            throwSyntaxError("']' expected in reference variable.");
-          }
-        }
-        getNextToken();
-      } else {
-        break;
-      }
-    }
-    return ref;
-  }
-
-  private Expression compound_variable() {
-    //  compound_variable:
-    //                 T_VARIABLE
-    //         | '$' '{' expr '}'
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: compound_variable()");
-    }
-    if (token == TokenNameVariable) {
-      FieldReference ref = new FieldReference(scanner.getCurrentIdentifierSource(), scanner.getCurrentTokenStartPosition());
-      getNextToken();
-      return ref;
-    } else {
-      // because of simple_indirect_reference
-      while (token == TokenNameDOLLAR) {
-        getNextToken();
-      }
-      if (token != TokenNameLBRACE) {
-        reportSyntaxError("'{' expected after compound variable token '$'.");
-        return null;
-      }
-      getNextToken();
-      expr();
-      if (token != TokenNameRBRACE) {
-        throwSyntaxError("'}' expected after compound variable token '$'.");
-      }
-      getNextToken();
-    }
-    return null;
-  }
-
-  //  private void dim_offset() {
-  //    // dim_offset:
-  //    // /* empty */
-  //    // | expr
-  //    expr();
-  //  }
-  private void object_property() {
-    //  object_property:
-    // object_dim_list
-    //| variable_without_objects
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: object_property()");
-    }
-    if (token == TokenNameVariable || token == TokenNameDOLLAR) {
-      variable_without_objects();
-    } else {
-      object_dim_list();
-    }
-  }
-
-  private void object_dim_list() {
-    //object_dim_list:
-    // object_dim_list '[' dim_offset ']'
-    //| object_dim_list '{' expr '}'
-    //| variable_name
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: object_dim_list()");
-    }
-    variable_name();
-    while (true) {
-      if (token == TokenNameLBRACE) {
-        getNextToken();
-        expr();
-        if (token != TokenNameRBRACE) {
-          throwSyntaxError("'}' expected in object_dim_list.");
-        }
-        getNextToken();
-      } else if (token == TokenNameLBRACKET) {
-        getNextToken();
-        if (token == TokenNameRBRACKET) {
-          getNextToken();
-          continue;
-        }
-        expr();
-        if (token != TokenNameRBRACKET) {
-          throwSyntaxError("']' expected in object_dim_list.");
-        }
-        getNextToken();
-      } else {
-        break;
-      }
-    }
-  }
-
-  private void variable_name() {
-    //variable_name:
-    // T_STRING
-    //| '{' expr '}'
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: variable_name()");
-    }
-    if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
-      if (token > TokenNameKEYWORD) {
-        // TODO show a warning "Keyword used as variable" ?
-      }
-      getNextToken();
-    } else {
-      if (token != TokenNameLBRACE) {
-        throwSyntaxError("'{' expected in variable name.");
-      }
-      getNextToken();
-      expr();
-      if (token != TokenNameRBRACE) {
-        throwSyntaxError("'}' expected in variable name.");
-      }
-      getNextToken();
-    }
-  }
-
-  private void r_variable() {
-    variable();
-  }
-
-  private void w_variable() {
-    variable();
-  }
-
-  private void rw_variable() {
-    variable();
-  }
-
-  private Expression variable() {
-    //    variable:
-    //         base_variable_with_function_calls T_OBJECT_OPERATOR
-    //                 object_property method_or_not variable_properties
-    // | base_variable_with_function_calls
-    Expression ref = base_variable_with_function_calls();
-    if (token == TokenNameMINUS_GREATER) {
-      ref = null;
-      getNextToken();
-      object_property();
-      method_or_not();
-      variable_properties();
-    }
-    return ref;
-  }
-
-  private void variable_properties() {
-    //  variable_properties:
-    //                 variable_properties variable_property
-    //         | /* empty */
-    while (token == TokenNameMINUS_GREATER) {
-      variable_property();
-    }
-  }
-
-  private void variable_property() {
-    //  variable_property:
-    //                 T_OBJECT_OPERATOR object_property method_or_not
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: variable_property()");
-    }
-    if (token == TokenNameMINUS_GREATER) {
-      getNextToken();
-      object_property();
-      method_or_not();
-    } else {
-      throwSyntaxError("'->' expected in variable_property.");
-    }
-  }
-
-  private void method_or_not() {
-    //  method_or_not:
-    //                 '(' function_call_parameter_list ')'
-    //         | /* empty */
-    if (Scanner.TRACE) {
-      System.out.println("TRACE: method_or_not()");
-    }
-    if (token == TokenNameLPAREN) {
-      getNextToken();
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-        return;
-      }
-      non_empty_function_call_parameter_list();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected in method_or_not.");
-      }
-      getNextToken();
-    }
-  }
-
-  private void exit_expr() {
-    // /* empty */
-    // | '(' ')'
-    // | '(' expr ')'
-    if (token != TokenNameLPAREN) {
-      return;
-    }
-    getNextToken();
-    if (token == TokenNameRPAREN) {
-      getNextToken();
-      return;
-    }
-    expr();
-    if (token != TokenNameRPAREN) {
-      throwSyntaxError("')' expected after keyword 'exit'");
-    }
-    getNextToken();
-  }
-
-  private void encaps_list() {
-    //                 encaps_list encaps_var
-    //         | encaps_list T_STRING
-    //         | encaps_list T_NUM_STRING
-    //         | encaps_list T_ENCAPSED_AND_WHITESPACE
-    //         | encaps_list T_CHARACTER
-    //         | encaps_list T_BAD_CHARACTER
-    //         | encaps_list '['
-    //         | encaps_list ']'
-    //         | encaps_list '{'
-    //         | encaps_list '}'
-    //         | encaps_list T_OBJECT_OPERATOR
-    //         | /* empty */
-    while (true) {
-      switch (token) {
-      case TokenNameSTRING:
-        getNextToken();
-        break;
-      case TokenNameLBRACE:
-        //          scanner.encapsedStringStack.pop();
-        getNextToken();
-        break;
-      case TokenNameRBRACE:
-        //          scanner.encapsedStringStack.pop();
-        getNextToken();
-        break;
-      case TokenNameLBRACKET:
-        //          scanner.encapsedStringStack.pop();
-        getNextToken();
-        break;
-      case TokenNameRBRACKET:
-        //          scanner.encapsedStringStack.pop();
-        getNextToken();
-        break;
-      case TokenNameMINUS_GREATER:
-        //          scanner.encapsedStringStack.pop();
-        getNextToken();
-        break;
-      case TokenNameVariable:
-      case TokenNameDOLLAR_LBRACE:
-      case TokenNameLBRACE_DOLLAR:
-        encaps_var();
-        break;
-      default:
-        char encapsedChar = ((Character) scanner.encapsedStringStack.peek()).charValue();
-        if (encapsedChar == '$') {
-          scanner.encapsedStringStack.pop();
-          encapsedChar = ((Character) scanner.encapsedStringStack.peek()).charValue();
-          switch (encapsedChar) {
-          case '`':
-            if (token == TokenNameEncapsedString0) {
-              return;
-            }
-            token = TokenNameSTRING;
-            continue;
-          case '\'':
-            if (token == TokenNameEncapsedString1) {
-              return;
-            }
-            token = TokenNameSTRING;
-            continue;
-          case '"':
-            if (token == TokenNameEncapsedString2) {
-              return;
-            }
-            token = TokenNameSTRING;
-            continue;
-          }
-        }
-        return;
-      }
-    }
-  }
-
-  private void encaps_var() {
-    //                 T_VARIABLE
-    //         | T_VARIABLE '[' encaps_var_offset ']'
-    //         | T_VARIABLE T_OBJECT_OPERATOR T_STRING
-    //         | T_DOLLAR_OPEN_CURLY_BRACES expr '}'
-    //         | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}'
-    //         | T_CURLY_OPEN variable '}'
-    switch (token) {
-    case TokenNameVariable:
-      getNextToken();
-      if (token == TokenNameLBRACKET) {
-        getNextToken();
-        expr(); //encaps_var_offset();
-        if (token != TokenNameRBRACKET) {
-          throwSyntaxError("']' expected after variable.");
-        }
-        //          scanner.encapsedStringStack.pop();
-        getNextToken();
-        //          }
-      } else if (token == TokenNameMINUS_GREATER) {
-        getNextToken();
-        if (token != TokenNameIdentifier) {
-          throwSyntaxError("Identifier expected after '->'.");
-        }
-        //          scanner.encapsedStringStack.pop();
-        getNextToken();
-      }
-      //        else {
-      //          // scanner.encapsedStringStack.pop();
-      //          int tempToken = TokenNameSTRING;
-      //          if (!scanner.encapsedStringStack.isEmpty()
-      //              && (token == TokenNameEncapsedString0
-      //                  || token == TokenNameEncapsedString1
-      //                  || token == TokenNameEncapsedString2 || token ==
-      // TokenNameERROR)) {
-      //            char encapsedChar = ((Character)
-      // scanner.encapsedStringStack.peek())
-      //                .charValue();
-      //            switch (token) {
-      //              case TokenNameEncapsedString0 :
-      //                if (encapsedChar == '`') {
-      //                  tempToken = TokenNameEncapsedString0;
-      //                }
-      //                break;
-      //              case TokenNameEncapsedString1 :
-      //                if (encapsedChar == '\'') {
-      //                  tempToken = TokenNameEncapsedString1;
-      //                }
-      //                break;
-      //              case TokenNameEncapsedString2 :
-      //                if (encapsedChar == '"') {
-      //                  tempToken = TokenNameEncapsedString2;
-      //                }
-      //                break;
-      //              case TokenNameERROR :
-      //                if (scanner.source[scanner.currentPosition - 1] == '\\') {
-      //                  scanner.currentPosition--;
-      //                  getNextToken();
-      //                }
-      //                break;
-      //            }
-      //          }
-      //          token = tempToken;
-      //        }
-      break;
-    case TokenNameDOLLAR_LBRACE:
-      getNextToken();
-      if (token == TokenNameDOLLAR_LBRACE) {
-        encaps_var();
-      } else if (token == TokenNameIdentifier) {
-        getNextToken();
-        if (token == TokenNameLBRACKET) {
-          getNextToken();
-          //            if (token == TokenNameRBRACKET) {
-          //              getNextToken();
-          //            } else {
-          expr();
-          if (token != TokenNameRBRACKET) {
-            throwSyntaxError("']' expected after '${'.");
-          }
-          getNextToken();
-          //            }
-        }
-      } else {
-        expr();
-      }
-      if (token != TokenNameRBRACE) {
-        throwSyntaxError("'}' expected.");
-      }
-      getNextToken();
-      break;
-    case TokenNameLBRACE_DOLLAR:
-      getNextToken();
-      if (token == TokenNameLBRACE_DOLLAR) {
-        encaps_var();
-      } else if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
-        getNextToken();
-        if (token == TokenNameLBRACKET) {
-          getNextToken();
-          //            if (token == TokenNameRBRACKET) {
-          //              getNextToken();
-          //            } else {
-          expr();
-          if (token != TokenNameRBRACKET) {
-            throwSyntaxError("']' expected.");
-          }
-          getNextToken();
-          //            }
-        } else if (token == TokenNameMINUS_GREATER) {
-          getNextToken();
-          if (token != TokenNameIdentifier && token != TokenNameVariable) {
-            throwSyntaxError("String or Variable token expected.");
-          }
-          getNextToken();
-          if (token == TokenNameLBRACKET) {
-            getNextToken();
-            //            if (token == TokenNameRBRACKET) {
-            //              getNextToken();
-            //            } else {
-            expr();
-            if (token != TokenNameRBRACKET) {
-              throwSyntaxError("']' expected after '${'.");
-            }
-            getNextToken();
-            //            }
-          }
-        }
-        //          if (token != TokenNameRBRACE) {
-        //            throwSyntaxError("'}' expected after '{$'.");
-        //          }
-        //          // scanner.encapsedStringStack.pop();
-        //          getNextToken();
-      } else {
-        expr();
-        if (token != TokenNameRBRACE) {
-          throwSyntaxError("'}' expected.");
-        }
-        //          scanner.encapsedStringStack.pop();
-        getNextToken();
-      }
-      break;
-    }
-  }
-
-  private void encaps_var_offset() {
-    //                 T_STRING
-    //         | T_NUM_STRING
-    //         | T_VARIABLE
-    switch (token) {
-    case TokenNameSTRING:
-      getNextToken();
-      break;
-    case TokenNameIntegerLiteral:
-      getNextToken();
-      break;
-    case TokenNameVariable:
-      getNextToken();
-      break;
-    case TokenNameIdentifier:
-      getNextToken();
-      break;
-    default:
-      throwSyntaxError("Variable or String token expected.");
-      break;
-    }
-  }
-
-  private void internal_functions_in_yacc() {
-    //    int start = 0;
-    switch (token) {
-    case TokenNameisset:
-      //       T_ISSET '(' isset_variables ')'
-      getNextToken();
-      if (token != TokenNameLPAREN) {
-        throwSyntaxError("'(' expected after keyword 'isset'");
-      }
-      getNextToken();
-      isset_variables();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected after keyword 'isset'");
-      }
-      getNextToken();
-      break;
-    case TokenNameempty:
-      //       T_EMPTY '(' variable ')'
-      getNextToken();
-      if (token != TokenNameLPAREN) {
-        throwSyntaxError("'(' expected after keyword 'empty'");
-      }
-      getNextToken();
-      variable();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected after keyword 'empty'");
-      }
-      getNextToken();
-      break;
-    case TokenNameinclude:
-      //T_INCLUDE expr
-      checkFileName(token);
-      break;
-    case TokenNameinclude_once:
-      //       T_INCLUDE_ONCE expr
-      checkFileName(token);
-      break;
-    case TokenNameeval:
-      //       T_EVAL '(' expr ')'
-      getNextToken();
-      if (token != TokenNameLPAREN) {
-        throwSyntaxError("'(' expected after keyword 'eval'");
-      }
-      getNextToken();
-      expr();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' expected after keyword 'eval'");
-      }
-      getNextToken();
-      break;
-    case TokenNamerequire:
-      //T_REQUIRE expr
-      checkFileName(token);
-      break;
-    case TokenNamerequire_once:
-      //       T_REQUIRE_ONCE expr
-      checkFileName(token);
-      break;
-    }
-  }
-
-  private void checkFileName(int includeToken) {
-    //<include-token> expr
-    int start = scanner.getCurrentTokenStartPosition();
-    boolean hasLPAREN = false;
-    getNextToken();
-    if (token == TokenNameLPAREN) {
-      hasLPAREN = true;
-      getNextToken();
-    }
-    Expression expression = expr();
-    if (hasLPAREN) {
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-      } else {
-        throwSyntaxError("')' expected for keyword '" + scanner.toStringAction(includeToken) + "'");
-      }
-    }
-    char[] currTokenSource = scanner.getCurrentTokenSource(start);
-    IFile file = null;
-    if (scanner.compilationUnit != null) {
-      IResource resource = scanner.compilationUnit.getResource();
-      if (resource != null && resource instanceof IFile) {
-        file = (IFile) resource;
-      }
-    }
-    char[][] tokens;
-    tokens = new char[1][];
-    tokens[0] = currTokenSource;
-
-    ImportReference impt = new ImportReference(tokens, currTokenSource, start, scanner.getCurrentTokenEndPosition(), false);
-    impt.declarationSourceEnd = impt.sourceEnd;
-    impt.declarationEnd = impt.declarationSourceEnd;
-    //endPosition is just before the ;
-    impt.declarationSourceStart = start;
-    includesList.add(impt);
-
-    if (expression instanceof StringLiteral) {
-      StringLiteral literal = (StringLiteral) expression;
-      char[] includeName = literal.source();
-      if (includeName.length == 0) {
-        reportSyntaxError("Empty filename after keyword '" + scanner.toStringAction(includeToken) + "'", literal.sourceStart,
-            literal.sourceStart + 1);
-      }
-      String includeNameString = new String(includeName);
-      if (literal instanceof StringLiteralDQ) {
-        if (includeNameString.indexOf('$') >= 0) {
-          // assuming that the filename contains a variable => no filename check
-          return;
-        }
-      }
-      if (includeNameString.startsWith("http://")) {
-        // assuming external include location
-        return;
-      }
-      if (file != null) {
-        // check the filename:
-        //      System.out.println(new String(compilationUnit.getFileName())+" - "+ expression.toStringExpression());
-        IProject project = file.getProject();
-        if (project != null) {
-          IPath path = PHPFileUtil.determineFilePath(includeNameString, file, project);
-
-          if (path == null) {
-            //              reportSyntaxError("File: " + expression.toStringExpression() + " doesn't exist in project: "
-            //                  + project.getLocation().toString(), literal.sourceStart, literal.sourceEnd);
-            String[] args = { expression.toStringExpression(), project.getLocation().toString() };
-            problemReporter.phpIncludeNotExistWarning(args, literal.sourceStart, literal.sourceEnd, referenceContext,
-                compilationUnit.compilationResult);
-          } else {
-            try {
-              //              String projectPath = ProjectPrefUtil.getDocumentRoot(file.getProject()).toString();
-              //              String filePath = file.getRawLocation().toString();
-              String filePath = path.toString();
-              String ext = file.getRawLocation().getFileExtension();
-              int fileExtensionLength = ext == null ? 0 : ext.length() + 1;
-              int length;
-
-              impt.tokens = CharOperation.splitOn('/', filePath.toCharArray(), 0, filePath.length() - fileExtensionLength);
-              impt.setFile(PHPFileUtil.createFile(path, project));
-            } catch (Exception e) {
-              // the file is outside of the workspace
-            }
-          }
-        }
-      }
-    }
-  }
-
-  private void isset_variables() {
-    // variable
-    // | isset_variables ','
-    if (token == TokenNameRPAREN) {
-      throwSyntaxError("Variable expected after keyword 'isset'");
-    }
-    while (true) {
-      variable();
-      if (token == TokenNameCOMMA) {
-        getNextToken();
-      } else {
-        break;
-      }
-    }
-  }
-
-  private boolean common_scalar() {
-    //  common_scalar:
-    // T_LNUMBER
-    // | T_DNUMBER
-    // | T_CONSTANT_ENCAPSED_STRING
-    // | T_LINE
-    // | T_FILE
-    // | T_CLASS_C
-    // | T_METHOD_C
-    // | T_FUNC_C
-    switch (token) {
-    case TokenNameIntegerLiteral:
-      getNextToken();
-      return true;
-    case TokenNameDoubleLiteral:
-      getNextToken();
-      return true;
-    case TokenNameStringDoubleQuote:
-      getNextToken();
-      return true;
-    case TokenNameStringSingleQuote:
-      getNextToken();
-      return true;
-    case TokenNameStringInterpolated:
-      getNextToken();
-      return true;
-    case TokenNameFILE:
-      getNextToken();
-      return true;
-    case TokenNameLINE:
-      getNextToken();
-      return true;
-    case TokenNameCLASS_C:
-      getNextToken();
-      return true;
-    case TokenNameMETHOD_C:
-      getNextToken();
-      return true;
-    case TokenNameFUNC_C:
-      getNextToken();
-      return true;
-    }
-    return false;
-  }
-
-  private void scalar() {
-    //  scalar:
-    // T_STRING
-    //| T_STRING_VARNAME
-    //| class_constant
-    //| common_scalar
-    //| '"' encaps_list '"'
-    //| '\'' encaps_list '\''
-    //| T_START_HEREDOC encaps_list T_END_HEREDOC
-    throwSyntaxError("Not yet implemented (scalar).");
-  }
-
-  private void static_scalar() {
-    //    static_scalar: /* compile-time evaluated scalars */
-    //         common_scalar
-    // | T_STRING
-    // | '+' static_scalar
-    // | '-' static_scalar
-    // | T_ARRAY '(' static_array_pair_list ')'
-    // | static_class_constant
-    if (common_scalar()) {
-      return;
-    }
-    switch (token) {
-    case TokenNameIdentifier:
-      getNextToken();
-      //        static_class_constant:
-      //               T_STRING T_PAAMAYIM_NEKUDOTAYIM T_STRING
-      if (token == TokenNamePAAMAYIM_NEKUDOTAYIM) {
-        getNextToken();
-        if (token == TokenNameIdentifier) {
-          getNextToken();
-        } else {
-          throwSyntaxError("Identifier expected after '::' operator.");
-        }
-      }
-      break;
-    case TokenNameEncapsedString0:
-      try {
-        scanner.currentCharacter = scanner.source[scanner.currentPosition++];
-        while (scanner.currentCharacter != '`') {
-          if (scanner.currentCharacter == '\\') {
-            scanner.currentPosition++;
-          }
-          scanner.currentCharacter = scanner.source[scanner.currentPosition++];
-        }
-        getNextToken();
-      } catch (IndexOutOfBoundsException e) {
-        throwSyntaxError("'`' expected at end of static string.");
-      }
-      break;
-    case TokenNameEncapsedString1:
-      try {
-        scanner.currentCharacter = scanner.source[scanner.currentPosition++];
-        while (scanner.currentCharacter != '\'') {
-          if (scanner.currentCharacter == '\\') {
-            scanner.currentPosition++;
-          }
-          scanner.currentCharacter = scanner.source[scanner.currentPosition++];
-        }
-        getNextToken();
-      } catch (IndexOutOfBoundsException e) {
-        throwSyntaxError("'\'' expected at end of static string.");
-      }
-      break;
-    case TokenNameEncapsedString2:
-      try {
-        scanner.currentCharacter = scanner.source[scanner.currentPosition++];
-        while (scanner.currentCharacter != '"') {
-          if (scanner.currentCharacter == '\\') {
-            scanner.currentPosition++;
-          }
-          scanner.currentCharacter = scanner.source[scanner.currentPosition++];
-        }
-        getNextToken();
-      } catch (IndexOutOfBoundsException e) {
-        throwSyntaxError("'\"' expected at end of static string.");
-      }
-      break;
-    case TokenNamePLUS:
-      getNextToken();
-      static_scalar();
-      break;
-    case TokenNameMINUS:
-      getNextToken();
-      static_scalar();
-      break;
-    case TokenNamearray:
-      getNextToken();
-      if (token != TokenNameLPAREN) {
-        throwSyntaxError("'(' expected after keyword 'array'");
-      }
-      getNextToken();
-      if (token == TokenNameRPAREN) {
-        getNextToken();
-        break;
-      }
-      non_empty_static_array_pair_list();
-      if (token != TokenNameRPAREN) {
-        throwSyntaxError("')' or ',' expected after keyword 'array'");
-      }
-      getNextToken();
-      break;
-    //      case TokenNamenull :
-    //        getNextToken();
-    //        break;
-    //      case TokenNamefalse :
-    //        getNextToken();
-    //        break;
-    //      case TokenNametrue :
-    //        getNextToken();
-    //        break;
-    default:
-      throwSyntaxError("Static scalar/constant expected.");
-    }
-  }
-
-  private void non_empty_static_array_pair_list() {
-    //  non_empty_static_array_pair_list:
-    // non_empty_static_array_pair_list ',' static_scalar T_DOUBLE_ARROW
-    // static_scalar
-    //| non_empty_static_array_pair_list ',' static_scalar
-    //| static_scalar T_DOUBLE_ARROW static_scalar
-    //| static_scalar
-    while (true) {
-      static_scalar();
-      if (token == TokenNameEQUAL_GREATER) {
-        getNextToken();
-        static_scalar();
-      }
-      if (token != TokenNameCOMMA) {
-        break;
-      }
-      getNextToken();
-      if (token == TokenNameRPAREN) {
-        break;
-      }
-    }
-  }
-
-  public void reportSyntaxError() { //int act, int currentKind, int
-    // stateStackTop) {
-    /* remember current scanner position */
-    int startPos = scanner.startPosition;
-    int currentPos = scanner.currentPosition;
-    //         String[] expectings;
-    //         String tokenName = name[symbol_index[currentKind]];
-    //fetch all "accurate" possible terminals that could recover the error
-    //         int start, end = start = asi(stack[stateStackTop]);
-    //         while (asr[end] != 0)
-    //                 end++;
-    //         int length = end - start;
-    //         expectings = new String[length];
-    //         if (length != 0) {
-    //                 char[] indexes = new char[length];
-    //                 System.arraycopy(asr, start, indexes, 0, length);
-    //                 for (int i = 0; i < length; i++) {
-    //                         expectings[i] = name[symbol_index[indexes[i]]];
-    //                 }
-    //         }
-    //if the pb is an EOF, try to tell the user that they are some
-    //         if (tokenName.equals(UNEXPECTED_EOF)) {
-    //                 if (!this.checkAndReportBracketAnomalies(problemReporter())) {
-    //                         char[] tokenSource;
-    //                         try {
-    //                                 tokenSource = this.scanner.getCurrentTokenSource();
-    //                         } catch (Exception e) {
-    //                                 tokenSource = new char[] {};
-    //                         }
-    //                         problemReporter().parseError(
-    //                                 this.scanner.startPosition,
-    //                                 this.scanner.currentPosition - 1,
-    //                                 tokenSource,
-    //                                 tokenName,
-    //                                 expectings);
-    //                 }
-    //         } else { //the next test is HEAVILY grammar DEPENDENT.
-    //                 if ((length == 14)
-    //                         && (expectings[0] == "=") //$NON-NLS-1$
-    //                         && (expectings[1] == "*=") //$NON-NLS-1$
-    //                         && (expressionPtr > -1)) {
-    //                                 switch(currentKind) {
-    //                                         case TokenNameSEMICOLON:
-    //                                         case TokenNamePLUS:
-    //                                         case TokenNameMINUS:
-    //                                         case TokenNameDIVIDE:
-    //                                         case TokenNameREMAINDER:
-    //                                         case TokenNameMULTIPLY:
-    //                                         case TokenNameLEFT_SHIFT:
-    //                                         case TokenNameRIGHT_SHIFT:
-    //// case TokenNameUNSIGNED_RIGHT_SHIFT:
-    //                                         case TokenNameLESS:
-    //                                         case TokenNameGREATER:
-    //                                         case TokenNameLESS_EQUAL:
-    //                                         case TokenNameGREATER_EQUAL:
-    //                                         case TokenNameEQUAL_EQUAL:
-    //                                         case TokenNameNOT_EQUAL:
-    //                                         case TokenNameXOR:
-    //                                         case TokenNameAND:
-    //                                         case TokenNameOR:
-    //                                         case TokenNameOR_OR:
-    //                                         case TokenNameAND_AND:
-    //                                                 // the ; is not the expected token ==> it ends a statement when an
-    // expression is not ended
-    //                                                 problemReporter().invalidExpressionAsStatement(expressionStack[expressionPtr]);
-    //                                                 break;
-    //                                         case TokenNameRBRACE :
-    //                                                 problemReporter().missingSemiColon(expressionStack[expressionPtr]);
-    //                                                 break;
-    //                                         default:
-    //                                                 char[] tokenSource;
-    //                                                 try {
-    //                                                         tokenSource = this.scanner.getCurrentTokenSource();
-    //                                                 } catch (Exception e) {
-    //                                                         tokenSource = new char[] {};
-    //                                                 }
-    //                                                 problemReporter().parseError(
-    //                                                         this.scanner.startPosition,
-    //                                                         this.scanner.currentPosition - 1,
-    //                                                         tokenSource,
-    //                                                         tokenName,
-    //                                                         expectings);
-    //                                                 this.checkAndReportBracketAnomalies(problemReporter());
-    //                                 }
-    //                 } else {
-    char[] tokenSource;
-    try {
-      tokenSource = this.scanner.getCurrentTokenSource();
-    } catch (Exception e) {
-      tokenSource = new char[] {};
-    }
-    //                         problemReporter().parseError(
-    //                                 this.scanner.startPosition,
-    //                                 this.scanner.currentPosition - 1,
-    //                                 tokenSource,
-    //                                 tokenName,
-    //                                 expectings);
-    this.checkAndReportBracketAnomalies(problemReporter());
-    //                 }
-    //         }
-    /* reset scanner where it was */
-    scanner.startPosition = startPos;
-    scanner.currentPosition = currentPos;
-  }
-
-  public static final int RoundBracket = 0;
-
-  public static final int SquareBracket = 1;
-
-  public static final int CurlyBracket = 2;
-
-  public static final int BracketKinds = 3;
-
-  protected int[] nestedMethod; //the ptr is nestedType
-
-  protected int nestedType, dimensions;
-
-  //variable set stack
-  final static int VariableStackIncrement = 10;
-
-  HashMap fTypeVariables = null;
-
-  HashMap fMethodVariables = null;
-
-  //ast stack
-  final static int AstStackIncrement = 100;
-
-  protected int astPtr;
-
-  protected ASTNode[] astStack = new ASTNode[AstStackIncrement];
-
-  protected int astLengthPtr;
-
-  protected int[] astLengthStack;
-
-  ASTNode[] noAstNodes = new ASTNode[AstStackIncrement];
-
-  public CompilationUnitDeclaration compilationUnit; /*
-                                                      * the result from parse()
-                                                      */
-
-  protected ReferenceContext referenceContext;
-
-  protected ProblemReporter problemReporter;
-
-  protected CompilerOptions options;
-
-  private ArrayList includesList;
-
-  //  protected CompilationResult compilationResult;
-  /**
-   * Returns this parser's problem reporter initialized with its reference context. Also it is assumed that a problem is going to be
-   * reported, so initializes the compilation result's line positions.
-   */
-  public ProblemReporter problemReporter() {
-    if (scanner.recordLineSeparator) {
-      compilationUnit.compilationResult.lineSeparatorPositions = scanner.getLineEnds();
-    }
-    problemReporter.referenceContext = referenceContext;
-    return problemReporter;
-  }
-
-  /*
-   * Reconsider the entire source looking for inconsistencies in {} () []
-   */
-  public boolean checkAndReportBracketAnomalies(ProblemReporter problemReporter) {
-    scanner.wasAcr = false;
-    boolean anomaliesDetected = false;
-    try {
-      char[] source = scanner.source;
-      int[] leftCount = { 0, 0, 0 };
-      int[] rightCount = { 0, 0, 0 };
-      int[] depths = { 0, 0, 0 };
-      int[][] leftPositions = new int[][] { new int[10], new int[10], new int[10] };
-      int[][] leftDepths = new int[][] { new int[10], new int[10], new int[10] };
-      int[][] rightPositions = new int[][] { new int[10], new int[10], new int[10] };
-      int[][] rightDepths = new int[][] { new int[10], new int[10], new int[10] };
-      scanner.currentPosition = scanner.initialPosition; //starting
-      // point
-      // (first-zero-based
-      // char)
-      while (scanner.currentPosition < scanner.eofPosition) { //loop for
-        // jumping
-        // over
-        // comments
-        try {
-          // ---------Consume white space and handles
-          // startPosition---------
-          boolean isWhiteSpace;
-          do {
-            scanner.startPosition = scanner.currentPosition;
-            //                                         if (((scanner.currentCharacter =
-            // source[scanner.currentPosition++]) == '\\') &&
-            // (source[scanner.currentPosition] == 'u')) {
-            //                                                 isWhiteSpace = scanner.jumpOverUnicodeWhiteSpace();
-            //                                         } else {
-            if (scanner.recordLineSeparator && ((scanner.currentCharacter == '\r') || (scanner.currentCharacter == '\n'))) {
-              if (scanner.lineEnds[scanner.linePtr] < scanner.startPosition) {
-                // only record line positions we have not
-                // recorded yet
-                scanner.pushLineSeparator();
-              }
-            }
-            isWhiteSpace = CharOperation.isWhitespace(scanner.currentCharacter);
-            //                                         }
-          } while (isWhiteSpace && (scanner.currentPosition < scanner.eofPosition));
-          // -------consume token until } is found---------
-          switch (scanner.currentCharacter) {
-          case '{': {
-            int index = leftCount[CurlyBracket]++;
-            if (index == leftPositions[CurlyBracket].length) {
-              System.arraycopy(leftPositions[CurlyBracket], 0, (leftPositions[CurlyBracket] = new int[index * 2]), 0, index);
-              System.arraycopy(leftDepths[CurlyBracket], 0, (leftDepths[CurlyBracket] = new int[index * 2]), 0, index);
-            }
-            leftPositions[CurlyBracket][index] = scanner.startPosition;
-            leftDepths[CurlyBracket][index] = depths[CurlyBracket]++;
-          }
-            break;
-          case '}': {
-            int index = rightCount[CurlyBracket]++;
-            if (index == rightPositions[CurlyBracket].length) {
-              System.arraycopy(rightPositions[CurlyBracket], 0, (rightPositions[CurlyBracket] = new int[index * 2]), 0, index);
-              System.arraycopy(rightDepths[CurlyBracket], 0, (rightDepths[CurlyBracket] = new int[index * 2]), 0, index);
-            }
-            rightPositions[CurlyBracket][index] = scanner.startPosition;
-            rightDepths[CurlyBracket][index] = --depths[CurlyBracket];
-          }
-            break;
-          case '(': {
-            int index = leftCount[RoundBracket]++;
-            if (index == leftPositions[RoundBracket].length) {
-              System.arraycopy(leftPositions[RoundBracket], 0, (leftPositions[RoundBracket] = new int[index * 2]), 0, index);
-              System.arraycopy(leftDepths[RoundBracket], 0, (leftDepths[RoundBracket] = new int[index * 2]), 0, index);
-            }
-            leftPositions[RoundBracket][index] = scanner.startPosition;
-            leftDepths[RoundBracket][index] = depths[RoundBracket]++;
-          }
-            break;
-          case ')': {
-            int index = rightCount[RoundBracket]++;
-            if (index == rightPositions[RoundBracket].length) {
-              System.arraycopy(rightPositions[RoundBracket], 0, (rightPositions[RoundBracket] = new int[index * 2]), 0, index);
-              System.arraycopy(rightDepths[RoundBracket], 0, (rightDepths[RoundBracket] = new int[index * 2]), 0, index);
-            }
-            rightPositions[RoundBracket][index] = scanner.startPosition;
-            rightDepths[RoundBracket][index] = --depths[RoundBracket];
-          }
-            break;
-          case '[': {
-            int index = leftCount[SquareBracket]++;
-            if (index == leftPositions[SquareBracket].length) {
-              System.arraycopy(leftPositions[SquareBracket], 0, (leftPositions[SquareBracket] = new int[index * 2]), 0, index);
-              System.arraycopy(leftDepths[SquareBracket], 0, (leftDepths[SquareBracket] = new int[index * 2]), 0, index);
-            }
-            leftPositions[SquareBracket][index] = scanner.startPosition;
-            leftDepths[SquareBracket][index] = depths[SquareBracket]++;
-          }
-            break;
-          case ']': {
-            int index = rightCount[SquareBracket]++;
-            if (index == rightPositions[SquareBracket].length) {
-              System.arraycopy(rightPositions[SquareBracket], 0, (rightPositions[SquareBracket] = new int[index * 2]), 0, index);
-              System.arraycopy(rightDepths[SquareBracket], 0, (rightDepths[SquareBracket] = new int[index * 2]), 0, index);
-            }
-            rightPositions[SquareBracket][index] = scanner.startPosition;
-            rightDepths[SquareBracket][index] = --depths[SquareBracket];
-          }
-            break;
-          case '\'': {
-            if (scanner.getNextChar('\\')) {
-              scanner.scanEscapeCharacter();
-            } else { // consume next character
-              scanner.unicodeAsBackSlash = false;
-              //                                                                       if (((scanner.currentCharacter =
-              // source[scanner.currentPosition++]) ==
-              // '\\') &&
-              // (source[scanner.currentPosition] ==
-              // 'u')) {
-              //                                                                               scanner.getNextUnicodeChar();
-              //                                                                       } else {
-              if (scanner.withoutUnicodePtr != 0) {
-                scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] = scanner.currentCharacter;
-              }
-              //                                                                       }
-            }
-            scanner.getNextChar('\'');
-            break;
-          }
-          case '"':
-            // consume next character
-            scanner.unicodeAsBackSlash = false;
-            //                                                 if (((scanner.currentCharacter =
-            // source[scanner.currentPosition++]) == '\\') &&
-            // (source[scanner.currentPosition] == 'u')) {
-            //                                                         scanner.getNextUnicodeChar();
-            //                                                 } else {
-            if (scanner.withoutUnicodePtr != 0) {
-              scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] = scanner.currentCharacter;
-            }
-            //                                                 }
-            while (scanner.currentCharacter != '"') {
-              if (scanner.currentCharacter == '\r') {
-                if (source[scanner.currentPosition] == '\n')
-                  scanner.currentPosition++;
-                break; // the string cannot go further that
-                // the line
-              }
-              if (scanner.currentCharacter == '\n') {
-                break; // the string cannot go further that
-                // the line
-              }
-              if (scanner.currentCharacter == '\\') {
-                scanner.scanEscapeCharacter();
-              }
-              // consume next character
-              scanner.unicodeAsBackSlash = false;
-              //                                                               if (((scanner.currentCharacter =
-              // source[scanner.currentPosition++]) == '\\')
-              // && (source[scanner.currentPosition] == 'u'))
-              // {
-              //                                                                       scanner.getNextUnicodeChar();
-              //                                                               } else {
-              if (scanner.withoutUnicodePtr != 0) {
-                scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] = scanner.currentCharacter;
-              }
-              //                                                               }
-            }
-            break;
-          case '/': {
-            int test;
-            if ((test = scanner.getNextChar('/', '*')) == 0) { //line
-              // comment
-              //get the next char
-              if (((scanner.currentCharacter = source[scanner.currentPosition++]) == '\\')
-                  && (source[scanner.currentPosition] == 'u')) {
-                //-------------unicode traitement
-                // ------------
-                int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
-                scanner.currentPosition++;
-                while (source[scanner.currentPosition] == 'u') {
-                  scanner.currentPosition++;
-                }
-                if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c1 < 0
-                    || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c2 < 0
-                    || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c3 < 0
-                    || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c4 < 0) { //error
-                  // don't
-                  // care of the
-                  // value
-                  scanner.currentCharacter = 'A';
-                } //something different from \n and \r
-                else {
-                  scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
-                }
-              }
-              while (scanner.currentCharacter != '\r' && scanner.currentCharacter != '\n') {
-                //get the next char
-                scanner.startPosition = scanner.currentPosition;
-                if (((scanner.currentCharacter = source[scanner.currentPosition++]) == '\\')
-                    && (source[scanner.currentPosition] == 'u')) {
-                  //-------------unicode traitement
-                  // ------------
-                  int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
-                  scanner.currentPosition++;
-                  while (source[scanner.currentPosition] == 'u') {
-                    scanner.currentPosition++;
-                  }
-                  if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c1 < 0
-                      || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c2 < 0
-                      || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c3 < 0
-                      || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c4 < 0) { //error
-                    // don't
-                    // care of the
-                    // value
-                    scanner.currentCharacter = 'A';
-                  } //something different from \n
-                  // and \r
-                  else {
-                    scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
-                  }
-                }
-              }
-              if (scanner.recordLineSeparator && ((scanner.currentCharacter == '\r') || (scanner.currentCharacter == '\n'))) {
-                if (scanner.lineEnds[scanner.linePtr] < scanner.startPosition) {
-                  // only record line positions we
-                  // have not recorded yet
-                  scanner.pushLineSeparator();
-                  if (this.scanner.taskTags != null) {
-                    this.scanner.checkTaskTag(this.scanner.getCurrentTokenStartPosition(), this.scanner
-                        .getCurrentTokenEndPosition());
-                  }
-                }
-              }
-              break;
-            }
-            if (test > 0) { //traditional and annotation
-              // comment
-              boolean star = false;
-              // consume next character
-              scanner.unicodeAsBackSlash = false;
-              //                                                                       if (((scanner.currentCharacter =
-              // source[scanner.currentPosition++]) ==
-              // '\\') &&
-              // (source[scanner.currentPosition] ==
-              // 'u')) {
-              //                                                                               scanner.getNextUnicodeChar();
-              //                                                                       } else {
-              if (scanner.withoutUnicodePtr != 0) {
-                scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] = scanner.currentCharacter;
-              }
-              //                                                                       }
-              if (scanner.currentCharacter == '*') {
-                star = true;
-              }
-              //get the next char
-              if (((scanner.currentCharacter = source[scanner.currentPosition++]) == '\\')
-                  && (source[scanner.currentPosition] == 'u')) {
-                //-------------unicode traitement
-                // ------------
-                int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
-                scanner.currentPosition++;
-                while (source[scanner.currentPosition] == 'u') {
-                  scanner.currentPosition++;
-                }
-                if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c1 < 0
-                    || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c2 < 0
-                    || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c3 < 0
-                    || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c4 < 0) { //error
-                  // don't
-                  // care of the
-                  // value
-                  scanner.currentCharacter = 'A';
-                } //something different from * and /
-                else {
-                  scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
-                }
-              }
-              //loop until end of comment */
-              while ((scanner.currentCharacter != '/') || (!star)) {
-                star = scanner.currentCharacter == '*';
-                //get next char
-                if (((scanner.currentCharacter = source[scanner.currentPosition++]) == '\\')
-                    && (source[scanner.currentPosition] == 'u')) {
-                  //-------------unicode traitement
-                  // ------------
-                  int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
-                  scanner.currentPosition++;
-                  while (source[scanner.currentPosition] == 'u') {
-                    scanner.currentPosition++;
-                  }
-                  if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c1 < 0
-                      || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c2 < 0
-                      || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c3 < 0
-                      || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c4 < 0) { //error
-                    // don't
-                    // care of the
-                    // value
-                    scanner.currentCharacter = 'A';
-                  } //something different from * and
-                  // /
-                  else {
-                    scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
-                  }
-                }
-              }
-              if (this.scanner.taskTags != null) {
-                this.scanner.checkTaskTag(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
-              }
-              break;
-            }
-            break;
-          }
-          default:
-            if (Scanner.isPHPIdentifierStart(scanner.currentCharacter)) {
-              scanner.scanIdentifierOrKeyword(false);
-              break;
-            }
-            if (Character.isDigit(scanner.currentCharacter)) {
-              scanner.scanNumber(false);
-              break;
-            }
-          }
-          //-----------------end switch while
-          // try--------------------
-        } catch (IndexOutOfBoundsException e) {
-          break; // read until EOF
-        } catch (InvalidInputException e) {
-          return false; // no clue
-        }
-      }
-      if (scanner.recordLineSeparator) {
-        //                             compilationUnit.compilationResult.lineSeparatorPositions =
-        // scanner.getLineEnds();
-      }
-      // check placement anomalies against other kinds of brackets
-      for (int kind = 0; kind < BracketKinds; kind++) {
-        for (int leftIndex = leftCount[kind] - 1; leftIndex >= 0; leftIndex--) {
-          int start = leftPositions[kind][leftIndex]; // deepest
-          // first
-          // find matching closing bracket
-          int depth = leftDepths[kind][leftIndex];
-          int end = -1;
-          for (int i = 0; i < rightCount[kind]; i++) {
-            int pos = rightPositions[kind][i];
-            // want matching bracket further in source with same
-            // depth
-            if ((pos > start) && (depth == rightDepths[kind][i])) {
-              end = pos;
-              break;
-            }
-          }
-          if (end < 0) { // did not find a good closing match
-            problemReporter.unmatchedBracket(start, referenceContext, compilationUnit.compilationResult);
-            return true;
-          }
-          // check if even number of opening/closing other brackets
-          // in between this pair of brackets
-          int balance = 0;
-          for (int otherKind = 0; (balance == 0) && (otherKind < BracketKinds); otherKind++) {
-            for (int i = 0; i < leftCount[otherKind]; i++) {
-              int pos = leftPositions[otherKind][i];
-              if ((pos > start) && (pos < end))
-                balance++;
-            }
-            for (int i = 0; i < rightCount[otherKind]; i++) {
-              int pos = rightPositions[otherKind][i];
-              if ((pos > start) && (pos < end))
-                balance--;
-            }
-            if (balance != 0) {
-              problemReporter.unmatchedBracket(start, referenceContext, compilationUnit.compilationResult); //bracket
-              // anomaly
-              return true;
-            }
-          }
-        }
-        // too many opening brackets ?
-        for (int i = rightCount[kind]; i < leftCount[kind]; i++) {
-          anomaliesDetected = true;
-          problemReporter.unmatchedBracket(leftPositions[kind][leftCount[kind] - i - 1], referenceContext,
-              compilationUnit.compilationResult);
-        }
-        // too many closing brackets ?
-        for (int i = leftCount[kind]; i < rightCount[kind]; i++) {
-          anomaliesDetected = true;
-          problemReporter.unmatchedBracket(rightPositions[kind][i], referenceContext, compilationUnit.compilationResult);
-        }
-        if (anomaliesDetected)
-          return true;
-      }
-      return anomaliesDetected;
-    } catch (ArrayStoreException e) { // jdk1.2.2 jit bug
-      return anomaliesDetected;
-    } catch (NullPointerException e) { // jdk1.2.2 jit bug
-      return anomaliesDetected;
-    }
-  }
-
-  protected void pushOnAstLengthStack(int pos) {
-    try {
-      astLengthStack[++astLengthPtr] = pos;
-    } catch (IndexOutOfBoundsException e) {
-      int oldStackLength = astLengthStack.length;
-      int[] oldPos = astLengthStack;
-      astLengthStack = new int[oldStackLength + StackIncrement];
-      System.arraycopy(oldPos, 0, astLengthStack, 0, oldStackLength);
-      astLengthStack[astLengthPtr] = pos;
-    }
-  }
-
-  protected void pushOnAstStack(ASTNode node) {
-    /*
-     * add a new obj on top of the ast stack
-     */
-    try {
-      astStack[++astPtr] = node;
-    } catch (IndexOutOfBoundsException e) {
-      int oldStackLength = astStack.length;
-      ASTNode[] oldStack = astStack;
-      astStack = new ASTNode[oldStackLength + AstStackIncrement];
-      System.arraycopy(oldStack, 0, astStack, 0, oldStackLength);
-      astPtr = oldStackLength;
-      astStack[astPtr] = node;
-    }
-    try {
-      astLengthStack[++astLengthPtr] = 1;
-    } catch (IndexOutOfBoundsException e) {
-      int oldStackLength = astLengthStack.length;
-      int[] oldPos = astLengthStack;
-      astLengthStack = new int[oldStackLength + AstStackIncrement];
-      System.arraycopy(oldPos, 0, astLengthStack, 0, oldStackLength);
-      astLengthStack[astLengthPtr] = 1;
-    }
-  }
-
-  protected void resetModifiers() {
-    this.modifiers = AccDefault;
-    this.modifiersSourceStart = -1; // <-- see comment into
-    // modifiersFlag(int)
-    this.scanner.commentPtr = -1;
-  }
-
-  protected void consumePackageDeclarationName(IFile file) {
-    // create a package name similar to java package names
-    String projectPath = ProjectPrefUtil.getDocumentRoot(file.getProject()).toString();
-    String filePath = file.getRawLocation().toString();
-    String ext = file.getRawLocation().getFileExtension();
-    int fileExtensionLength = ext == null ? 0 : ext.length() + 1;
-    ImportReference impt;
-    int length;
-    char[][] tokens;
-    if (filePath.startsWith(projectPath)) {
-      tokens = CharOperation
-          .splitOn('/', filePath.toCharArray(), projectPath.length() + 1, filePath.length() - fileExtensionLength);
-    } else {
-      String name = file.getName();
-      tokens = new char[1][];
-      tokens[0] = name.substring(0, name.length() - fileExtensionLength).toCharArray();
-    }
-
-    this.compilationUnit.currentPackage = impt = new ImportReference(tokens, new char[0], 0, 0, true);
-
-    impt.declarationSourceStart = 0;
-    impt.declarationSourceEnd = 0;
-    impt.declarationEnd = 0;
-    //endPosition is just before the ;
-
-  }
+       protected final static int StackIncrement = 255;
+
+       protected int stateStackTop;
+
+       // protected int[] stack = new int[StackIncrement];
+
+       public int firstToken; // handle for multiple parsing goals
+
+       public int lastAct; // handle for multiple parsing goals
+
+       // protected RecoveredElement currentElement;
+
+       public static boolean VERBOSE_RECOVERY = false;
+
+       protected boolean diet = false; // tells the scanner to jump over some
+
+       /**
+        * the PHP token scanner
+        */
+       public Scanner scanner;
+
+       int token;
+
+       protected int modifiers;
+
+       protected int modifiersSourceStart;
+
+       protected Parser(ProblemReporter problemReporter) {
+               this.problemReporter = problemReporter;
+               this.options = problemReporter.options;
+               this.token = TokenNameEOF;
+               this.initializeScanner();
+       }
+
+       public void setFileToParse(IFile fileToParse) {
+               this.token = TokenNameEOF;
+               this.initializeScanner();
+       }
+
+       /**
+        * ClassDeclaration Constructor.
+        *
+        * @param s
+        * @param sess
+        *          Description of Parameter
+        * @see
+        */
+       public Parser(IFile fileToParse) {
+               // if (keywordMap == null) {
+               // keywordMap = new HashMap();
+               // for (int i = 0; i < PHP_KEYWORS.length; i++) {
+               // keywordMap.put(PHP_KEYWORS[i], new Integer(PHP_KEYWORD_TOKEN[i]));
+               // }
+               // }
+               // this.currentPHPString = 0;
+               // PHPParserSuperclass.fileToParse = fileToParse;
+               // this.phpList = null;
+               this.includesList = null;
+               // this.str = "";
+               this.token = TokenNameEOF;
+               // this.chIndx = 0;
+               // this.rowCount = 1;
+               // this.columnCount = 0;
+               // this.phpEnd = false;
+               // getNextToken();
+               this.initializeScanner();
+       }
+
+       public void initializeScanner() {
+               this.scanner = new Scanner(false /* comment */, false /* whitespace */, this.options
+                               .getSeverity(CompilerOptions.NonExternalizedString) != ProblemSeverities.Ignore /* nls */, false, false,
+                               this.options.taskTags/* taskTags */, this.options.taskPriorites/* taskPriorities */, true/* isTaskCaseSensitive */);
+       }
+
+       /**
+        * Create marker for the parse error
+        */
+       // private void setMarker(String message, int charStart, int charEnd, int
+       // errorLevel) {
+       // setMarker(fileToParse, message, charStart, charEnd, errorLevel);
+       // }
+       /**
+        * This method will throw the SyntaxError. It will add the good lines and
+        * columns to the Error
+        *
+        * @param error
+        *          the error message
+        * @throws SyntaxError
+        *           the error raised
+        */
+       private void throwSyntaxError(String error) {
+               int problemStartPosition = scanner.getCurrentTokenStartPosition();
+               int problemEndPosition = scanner.getCurrentTokenEndPosition() + 1;
+               if (scanner.source.length <= problemEndPosition && problemEndPosition > 0) {
+                       problemEndPosition = scanner.source.length - 1;
+                       if (problemStartPosition > 0 && problemStartPosition >= problemEndPosition && problemEndPosition > 0) {
+                               problemStartPosition = problemEndPosition - 1;
+                       }
+               }
+               throwSyntaxError(error, problemStartPosition, problemEndPosition);
+       }
+
+       /**
+        * This method will throw the SyntaxError. It will add the good lines and
+        * columns to the Error
+        *
+        * @param error
+        *          the error message
+        * @throws SyntaxError
+        *           the error raised
+        */
+       // private void throwSyntaxError(String error, int startRow) {
+       // throw new SyntaxError(startRow, 0, " ", error);
+       // }
+       private void throwSyntaxError(String error, int problemStartPosition, int problemEndPosition) {
+               if (referenceContext != null) {
+                       problemReporter.phpParsingError(new String[] { error }, problemStartPosition, problemEndPosition, referenceContext,
+                                       compilationUnit.compilationResult);
+               }
+               throw new SyntaxError(1, 0, " ", error);
+       }
+
+       private void reportSyntaxError(String error) {
+               int problemStartPosition = scanner.getCurrentTokenStartPosition();
+               int problemEndPosition = scanner.getCurrentTokenEndPosition();
+               reportSyntaxError(error, problemStartPosition, problemEndPosition + 1);
+       }
+
+       private void reportSyntaxError(String error, int problemStartPosition, int problemEndPosition) {
+               if (referenceContext != null) {
+                       problemReporter.phpParsingError(new String[] { error }, problemStartPosition, problemEndPosition, referenceContext,
+                                       compilationUnit.compilationResult);
+               }
+       }
+
+       // private void reportSyntaxWarning(String error, int problemStartPosition,
+       // int problemEndPosition) {
+       // if (referenceContext != null) {
+       // problemReporter.phpParsingWarning(new String[] { error },
+       // problemStartPosition, problemEndPosition, referenceContext,
+       // compilationUnit.compilationResult);
+       // }
+       // }
+
+       /**
+        * gets the next token from input
+        */
+       private void getNextToken() {
+               try {
+                       token = scanner.getNextToken();
+                       if (Scanner.DEBUG) {
+                               int currentEndPosition = scanner.getCurrentTokenEndPosition();
+                               int currentStartPosition = scanner.getCurrentTokenStartPosition();
+                               System.out.print(currentStartPosition + "," + currentEndPosition + ": ");
+                               System.out.println(scanner.toStringAction(token));
+                       }
+               } catch (InvalidInputException e) {
+                       token = TokenNameERROR;
+                       String detailedMessage = e.getMessage();
+
+                       if (detailedMessage == Scanner.UNTERMINATED_STRING) {
+                               throwSyntaxError("Unterminated string.");
+                       } else if (detailedMessage == Scanner.UNTERMINATED_COMMENT) {
+                               throwSyntaxError("Unterminated commment.");
+                       }
+               }
+               return;
+       }
+
+       public void init(String s) {
+               // this.str = s;
+               this.token = TokenNameEOF;
+               this.includesList = new ArrayList();
+               // this.chIndx = 0;
+               // this.rowCount = 1;
+               // this.columnCount = 0;
+               // this.phpEnd = false;
+               // this.phpMode = false;
+               /* scanner initialization */
+               scanner.setSource(s.toCharArray());
+               scanner.setPHPMode(false);
+               astPtr = 0;
+       }
+
+       protected void initialize(boolean phpMode) {
+               initialize(phpMode, null);
+       }
+
+       protected void initialize(boolean phpMode, IdentifierIndexManager indexManager) {
+               compilationUnit = null;
+               referenceContext = null;
+               this.includesList = new ArrayList();
+               // this.indexManager = indexManager;
+               // this.str = "";
+               this.token = TokenNameEOF;
+               // this.chIndx = 0;
+               // this.rowCount = 1;
+               // this.columnCount = 0;
+               // this.phpEnd = false;
+               // this.phpMode = phpMode;
+               scanner.setPHPMode(phpMode);
+               astPtr = 0;
+       }
+
+       /**
+        * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
+        * &lt;/body&gt;'
+        */
+       public void parse(String s) {
+               parse(s, null);
+       }
+
+       /**
+        * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
+        * &lt;/body&gt;'
+        */
+       public void parse(String s, HashMap variables) {
+               fMethodVariables = variables;
+               fStackUnassigned = new ArrayList();
+               init(s);
+               parse();
+       }
+
+       /**
+        * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
+        * &lt;/body&gt;'
+        */
+       protected void parse() {
+               if (scanner.compilationUnit != null) {
+                       IResource resource = scanner.compilationUnit.getResource();
+                       if (resource != null && resource instanceof IFile) {
+                               // set the package name
+                               consumePackageDeclarationName((IFile) resource);
+                       }
+               }
+               getNextToken();
+               do {
+                       try {
+                               if (token != TokenNameEOF && token != TokenNameERROR) {
+                                       statementList();
+                               }
+                               if (token != TokenNameEOF) {
+                                       if (token == TokenNameERROR) {
+                                               throwSyntaxError("Scanner error (Found unknown token: " + scanner.toStringAction(token) + ")");
+                                       }
+                                       if (token == TokenNameRPAREN) {
+                                               throwSyntaxError("Too many closing ')'; end-of-file not reached.");
+                                       }
+                                       if (token == TokenNameRBRACE) {
+                                               throwSyntaxError("Too many closing '}'; end-of-file not reached.");
+                                       }
+                                       if (token == TokenNameRBRACKET) {
+                                               throwSyntaxError("Too many closing ']'; end-of-file not reached.");
+                                       }
+                                       if (token == TokenNameLPAREN) {
+                                               throwSyntaxError("Read character '('; end-of-file not reached.");
+                                       }
+                                       if (token == TokenNameLBRACE) {
+                                               throwSyntaxError("Read character '{';  end-of-file not reached.");
+                                       }
+                                       if (token == TokenNameLBRACKET) {
+                                               throwSyntaxError("Read character '[';  end-of-file not reached.");
+                                       }
+                                       throwSyntaxError("End-of-file not reached.");
+                               }
+                               break;
+                       } catch (SyntaxError syntaxError) {
+                               // syntaxError.printStackTrace();
+                               break;
+                       }
+               } while (true);
+
+               endParse(0);
+       }
+
+       /**
+        * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
+        * &lt;/body&gt;'
+        */
+       public void parseFunction(String s, HashMap variables) {
+               init(s);
+               scanner.phpMode = true;
+               parseFunction(variables);
+       }
+
+       /**
+        * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
+        * &lt;/body&gt;'
+        */
+       protected void parseFunction(HashMap variables) {
+               getNextToken();
+               boolean hasModifiers = member_modifiers();
+               if (token == TokenNamefunction) {
+                       if (!hasModifiers) {
+                               checkAndSetModifiers(AccPublic);
+                       }
+                       this.fMethodVariables = variables;
+
+                       MethodDeclaration methodDecl = new MethodDeclaration(null);
+                       methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
+                       methodDecl.modifiers = this.modifiers;
+                       methodDecl.type = MethodDeclaration.METHOD_DEFINITION;
+                       try {
+                               getNextToken();
+                               functionDefinition(methodDecl);
+                       } catch (SyntaxError sytaxErr1) {
+                               return;
+                       } finally {
+                               int sourceEnd = methodDecl.sourceEnd;
+                               if (sourceEnd <= 0 || methodDecl.declarationSourceStart > sourceEnd) {
+                                       sourceEnd = methodDecl.declarationSourceStart + 1;
+                               }
+                               methodDecl.sourceEnd = sourceEnd;
+                               methodDecl.declarationSourceEnd = sourceEnd;
+                       }
+               }
+       }
+
+       protected CompilationUnitDeclaration endParse(int act) {
+
+               this.lastAct = act;
+
+               // if (currentElement != null) {
+               // currentElement.topElement().updateParseTree();
+               // if (VERBOSE_RECOVERY) {
+               // System.out.print(Util.bind("parser.syntaxRecovery")); //$NON-NLS-1$
+               // System.out.println("--------------------------"); //$NON-NLS-1$
+               // System.out.println(compilationUnit);
+               // System.out.println("----------------------------------"); //$NON-NLS-1$
+               // }
+               // } else {
+               if (diet & VERBOSE_RECOVERY) {
+                       System.out.print(Util.bind("parser.regularParse")); //$NON-NLS-1$
+                       System.out.println("--------------------------"); //$NON-NLS-1$
+                       System.out.println(compilationUnit);
+                       System.out.println("----------------------------------"); //$NON-NLS-1$
+               }
+               // }
+               if (scanner.recordLineSeparator) {
+                       compilationUnit.compilationResult.lineSeparatorPositions = scanner.getLineEnds();
+               }
+               if (scanner.taskTags != null) {
+                       for (int i = 0; i < scanner.foundTaskCount; i++) {
+                               problemReporter().task(new String(scanner.foundTaskTags[i]), new String(scanner.foundTaskMessages[i]),
+                                               scanner.foundTaskPriorities[i] == null ? null : new String(scanner.foundTaskPriorities[i]),
+                                               scanner.foundTaskPositions[i][0], scanner.foundTaskPositions[i][1]);
+                       }
+               }
+               compilationUnit.imports = new ImportReference[includesList.size()];
+               for (int i = 0; i < includesList.size(); i++) {
+                       compilationUnit.imports[i] = (ImportReference) includesList.get(i);
+               }
+               return compilationUnit;
+       }
+
+       private Block statementList() {
+               boolean branchStatement = false;
+               Statement statement;
+               int blockStart = scanner.getCurrentTokenStartPosition();
+               ArrayList blockStatements = new ArrayList();
+               do {
+                       try {
+                               statement = statement();
+                               blockStatements.add(statement);
+                               if (branchStatement && statement != null) {
+                                       // reportSyntaxError("Unreachable code", statement.sourceStart,
+                                       // statement.sourceEnd);
+                                       problemReporter.unreachableCode(new String(scanner.getCurrentIdentifierSource()), statement.sourceStart,
+                                                       statement.sourceEnd, referenceContext, compilationUnit.compilationResult);
+                               }
+                               if ((token == TokenNameRBRACE) || (token == TokenNamecase) || (token == TokenNamedefault) || (token == TokenNameelse)
+                                               || (token == TokenNameelseif) || (token == TokenNameendif) || (token == TokenNameendfor)
+                                               || (token == TokenNameendforeach) || (token == TokenNameendwhile) || (token == TokenNameendswitch)
+                                               || (token == TokenNameenddeclare) || (token == TokenNameEOF) || (token == TokenNameERROR)) {
+                                       return createBlock(blockStart, blockStatements);
+                               }
+                               branchStatement = checkUnreachableStatements(statement);
+                       } catch (SyntaxError sytaxErr1) {
+                               // if an error occured,
+                               // try to find keywords
+                               // to parse the rest of the string
+                               boolean tokenize = scanner.tokenizeStrings;
+                               if (!tokenize) {
+                                       scanner.tokenizeStrings = true;
+                               }
+                               try {
+                                       while (token != TokenNameEOF) {
+                                               if ((token == TokenNameRBRACE) || (token == TokenNamecase) || (token == TokenNamedefault) || (token == TokenNameelse)
+                                                               || (token == TokenNameelseif) || (token == TokenNameendif) || (token == TokenNameendfor)
+                                                               || (token == TokenNameendforeach) || (token == TokenNameendwhile) || (token == TokenNameendswitch)
+                                                               || (token == TokenNameenddeclare) || (token == TokenNameEOF) || (token == TokenNameERROR)) {
+                                                       return createBlock(blockStart, blockStatements);
+                                               }
+                                               if (token == TokenNameif || token == TokenNameswitch || token == TokenNamefor || token == TokenNamewhile
+                                                               || token == TokenNamedo || token == TokenNameforeach || token == TokenNamecontinue || token == TokenNamebreak
+                                                               || token == TokenNamereturn || token == TokenNameexit || token == TokenNameecho || token == TokenNameglobal
+                                                               || token == TokenNamestatic || token == TokenNameunset || token == TokenNamefunction || token == TokenNamedeclare
+                                                               || token == TokenNametry || token == TokenNamecatch || token == TokenNamethrow || token == TokenNamefinal
+                                                               || token == TokenNameabstract || token == TokenNameclass || token == TokenNameinterface) {
+                                                       break;
+                                               }
+                                               // System.out.println(scanner.toStringAction(token));
+                                               getNextToken();
+                                               // System.out.println(scanner.toStringAction(token));
+                                       }
+                                       if (token == TokenNameEOF) {
+                                               throw sytaxErr1;
+                                       }
+                               } finally {
+                                       scanner.tokenizeStrings = tokenize;
+                               }
+                       }
+               } while (true);
+       }
+
+       /**
+        * @param statement
+        * @return
+        */
+       private boolean checkUnreachableStatements(Statement statement) {
+               if (statement instanceof ReturnStatement || statement instanceof ContinueStatement || statement instanceof BreakStatement) {
+                       return true;
+               } else if (statement instanceof IfStatement && ((IfStatement) statement).checkUnreachable) {
+                       return true;
+               }
+               return false;
+       }
+
+       /**
+        * @param blockStart
+        * @param blockStatements
+        * @return
+        */
+       private Block createBlock(int blockStart, ArrayList blockStatements) {
+               int blockEnd = scanner.getCurrentTokenEndPosition();
+               Block b = Block.EmptyWith(blockStart, blockEnd);
+               b.statements = new Statement[blockStatements.size()];
+               blockStatements.toArray(b.statements);
+               return b;
+       }
+
+       private void functionBody(MethodDeclaration methodDecl) {
+               // '{' [statement-list] '}'
+               if (token == TokenNameLBRACE) {
+                       getNextToken();
+               } else {
+                       methodDecl.sourceEnd = scanner.getCurrentTokenStartPosition() - 1;
+                       throwSyntaxError("'{' expected in compound-statement.");
+               }
+               if (token != TokenNameRBRACE) {
+                       statementList();
+               }
+               if (token == TokenNameRBRACE) {
+                       methodDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
+                       getNextToken();
+               } else {
+                       methodDecl.sourceEnd = scanner.getCurrentTokenStartPosition() - 1;
+                       throwSyntaxError("'}' expected in compound-statement.");
+               }
+       }
+
+       private Statement statement() {
+               Statement statement = null;
+               Expression expression;
+               int sourceStart = scanner.getCurrentTokenStartPosition();
+               int sourceEnd;
+               if (token == TokenNameif) {
+                       // T_IF '(' expr ')' statement elseif_list else_single
+                       // T_IF '(' expr ')' ':' inner_statement_list new_elseif_list
+                       // new_else_single T_ENDIF ';'
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'(' expected after 'if' keyword.");
+                       }
+                       expression = expr();
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("')' expected after 'if' condition.");
+                       }
+                       // create basic IfStatement
+                       IfStatement ifStatement = new IfStatement(expression, null, null, sourceStart, -1);
+                       if (token == TokenNameCOLON) {
+                               getNextToken();
+                               ifStatementColon(ifStatement);
+                       } else {
+                               ifStatement(ifStatement);
+                       }
+                       return ifStatement;
+               } else if (token == TokenNameswitch) {
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'(' expected after 'switch' keyword.");
+                       }
+                       expr();
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("')' expected after 'switch' condition.");
+                       }
+                       switchStatement();
+                       return statement;
+               } else if (token == TokenNamefor) {
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'(' expected after 'for' keyword.");
+                       }
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                       } else {
+                               expressionList();
+                               if (token == TokenNameSEMICOLON) {
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("';' expected after 'for'.");
+                               }
+                       }
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                       } else {
+                               expressionList();
+                               if (token == TokenNameSEMICOLON) {
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("';' expected after 'for'.");
+                               }
+                       }
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               expressionList();
+                               if (token == TokenNameRPAREN) {
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("')' expected after 'for'.");
+                               }
+                       }
+                       forStatement();
+                       return statement;
+               } else if (token == TokenNamewhile) {
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'(' expected after 'while' keyword.");
+                       }
+                       expr();
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("')' expected after 'while' condition.");
+                       }
+                       whileStatement();
+                       return statement;
+               } else if (token == TokenNamedo) {
+                       getNextToken();
+                       if (token == TokenNameLBRACE) {
+                               getNextToken();
+                               if (token != TokenNameRBRACE) {
+                                       statementList();
+                               }
+                               if (token == TokenNameRBRACE) {
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("'}' expected after 'do' keyword.");
+                               }
+                       } else {
+                               statement();
+                       }
+                       if (token == TokenNamewhile) {
+                               getNextToken();
+                               if (token == TokenNameLPAREN) {
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("'(' expected after 'while' keyword.");
+                               }
+                               expr();
+                               if (token == TokenNameRPAREN) {
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("')' expected after 'while' condition.");
+                               }
+                       } else {
+                               throwSyntaxError("'while' expected after 'do' keyword.");
+                       }
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                       } else {
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("';' expected after do-while statement.");
+                               }
+                               getNextToken();
+                       }
+                       return statement;
+               } else if (token == TokenNameforeach) {
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'(' expected after 'foreach' keyword.");
+                       }
+                       expr();
+                       if (token == TokenNameas) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'as' expected after 'foreach' exxpression.");
+                       }
+                       // variable();
+                       foreach_variable();
+                       foreach_optional_arg();
+                       if (token == TokenNameEQUAL_GREATER) {
+                               getNextToken();
+                               variable(false, false);
+                       }
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("')' expected after 'foreach' expression.");
+                       }
+                       foreachStatement();
+                       return statement;
+               } else if (token == TokenNamebreak) {
+                       expression = null;
+                       getNextToken();
+                       if (token != TokenNameSEMICOLON) {
+                               expression = expr();
+                       }
+                       if (token == TokenNameSEMICOLON) {
+                               sourceEnd = scanner.getCurrentTokenEndPosition();
+                               getNextToken();
+                       } else {
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("';' expected after 'break'.");
+                               }
+                               sourceEnd = scanner.getCurrentTokenEndPosition();
+                               getNextToken();
+                       }
+                       return new BreakStatement(null, sourceStart, sourceEnd);
+               } else if (token == TokenNamecontinue) {
+                       expression = null;
+                       getNextToken();
+                       if (token != TokenNameSEMICOLON) {
+                               expression = expr();
+                       }
+                       if (token == TokenNameSEMICOLON) {
+                               sourceEnd = scanner.getCurrentTokenEndPosition();
+                               getNextToken();
+                       } else {
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("';' expected after 'continue'.");
+                               }
+                               sourceEnd = scanner.getCurrentTokenEndPosition();
+                               getNextToken();
+                       }
+                       return new ContinueStatement(null, sourceStart, sourceEnd);
+               } else if (token == TokenNamereturn) {
+                       expression = null;
+                       getNextToken();
+                       if (token != TokenNameSEMICOLON) {
+                               expression = expr();
+                       }
+                       if (token == TokenNameSEMICOLON) {
+                               sourceEnd = scanner.getCurrentTokenEndPosition();
+                               getNextToken();
+                       } else {
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("';' expected after 'return'.");
+                               }
+                               sourceEnd = scanner.getCurrentTokenEndPosition();
+                               getNextToken();
+                       }
+                       return new ReturnStatement(expression, sourceStart, sourceEnd);
+               } else if (token == TokenNameecho) {
+                       getNextToken();
+                       expressionList();
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                       } else {
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("';' expected after 'echo' statement.");
+                               }
+                               getNextToken();
+                       }
+                       return statement;
+               } else if (token == TokenNameINLINE_HTML) {
+                       if (scanner.phpExpressionTag) {
+                               // start of <?= ... ?> block
+                               getNextToken();
+                               expr();
+                               if (token == TokenNameSEMICOLON) {
+                                       getNextToken();
+                               }
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("Missing '?>' for open PHP expression block ('<?=').");
+                               }
+                       } else {
+                               getNextToken();
+                       }
+                       return statement;
+                       // } else if (token == TokenNameprint) {
+                       // getNextToken();
+                       // expression();
+                       // if (token == TokenNameSEMICOLON) {
+                       // getNextToken();
+                       // } else {
+                       // if (token != TokenNameStopPHP) {
+                       // throwSyntaxError("';' expected after 'print' statement.");
+                       // }
+                       // getNextToken();
+                       // }
+                       // return;
+               } else if (token == TokenNameglobal) {
+                       getNextToken();
+                       global_var_list();
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                       } else {
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("';' expected after 'global' statement.");
+                               }
+                               getNextToken();
+                       }
+                       return statement;
+               } else if (token == TokenNamestatic) {
+                       getNextToken();
+                       static_var_list();
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                       } else {
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("';' expected after 'static' statement.");
+                               }
+                               getNextToken();
+                       }
+                       return statement;
+               } else if (token == TokenNameunset) {
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'(' expected after 'unset' statement.");
+                       }
+                       unset_variables();
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("')' expected after 'unset' statement.");
+                       }
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                       } else {
+                               if (token != TokenNameINLINE_HTML) {
+                                       throwSyntaxError("';' expected after 'unset' statement.");
+                               }
+                               getNextToken();
+                       }
+                       return statement;
+               } else if (token == TokenNamefunction) {
+                       MethodDeclaration methodDecl = new MethodDeclaration(this.compilationUnit.compilationResult);
+                       methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
+                       methodDecl.modifiers = AccDefault;
+                       methodDecl.type = MethodDeclaration.FUNCTION_DEFINITION;
+                       try {
+                               getNextToken();
+                               functionDefinition(methodDecl);
+                       } finally {
+                               sourceEnd = methodDecl.sourceEnd;
+                               if (sourceEnd <= 0 || methodDecl.declarationSourceStart > sourceEnd) {
+                                       sourceEnd = methodDecl.declarationSourceStart + 1;
+                               }
+                               methodDecl.declarationSourceEnd = sourceEnd;
+                               methodDecl.sourceEnd = sourceEnd;
+                       }
+                       return statement;
+               } else if (token == TokenNamedeclare) {
+                       // T_DECLARE '(' declare_list ')' declare_statement
+                       getNextToken();
+                       if (token != TokenNameLPAREN) {
+                               throwSyntaxError("'(' expected in 'declare' statement.");
+                       }
+                       getNextToken();
+                       declare_list();
+                       if (token != TokenNameRPAREN) {
+                               throwSyntaxError("')' expected in 'declare' statement.");
+                       }
+                       getNextToken();
+                       declare_statement();
+                       return statement;
+               } else if (token == TokenNametry) {
+                       getNextToken();
+                       if (token != TokenNameLBRACE) {
+                               throwSyntaxError("'{' expected in 'try' statement.");
+                       }
+                       getNextToken();
+                       statementList();
+                       if (token != TokenNameRBRACE) {
+                               throwSyntaxError("'}' expected in 'try' statement.");
+                       }
+                       getNextToken();
+                       return statement;
+               } else if (token == TokenNamecatch) {
+                       getNextToken();
+                       if (token != TokenNameLPAREN) {
+                               throwSyntaxError("'(' expected in 'catch' statement.");
+                       }
+                       getNextToken();
+                       fully_qualified_class_name();
+                       if (token != TokenNameVariable) {
+                               throwSyntaxError("Variable expected in 'catch' statement.");
+                       }
+                       addVariableSet();
+                       getNextToken();
+                       if (token != TokenNameRPAREN) {
+                               throwSyntaxError("')' expected in 'catch' statement.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameLBRACE) {
+                               throwSyntaxError("'{' expected in 'catch' statement.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameRBRACE) {
+                               statementList();
+                               if (token != TokenNameRBRACE) {
+                                       throwSyntaxError("'}' expected in 'catch' statement.");
+                               }
+                       }
+                       getNextToken();
+                       additional_catches();
+                       return statement;
+               } else if (token == TokenNamethrow) {
+                       getNextToken();
+                       expr();
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("';' expected after 'throw' exxpression.");
+                       }
+                       return statement;
+               } else if (token == TokenNamefinal || token == TokenNameabstract || token == TokenNameclass || token == TokenNameinterface) {
+                       try {
+                               TypeDeclaration typeDecl = new TypeDeclaration(this.compilationUnit.compilationResult);
+                               typeDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
+                               typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
+                               typeDecl.name = new char[] { ' ' };
+                               // default super class
+                               typeDecl.superclass = new SingleTypeReference(TypeConstants.OBJECT, 0);
+                               compilationUnit.types.add(typeDecl);
+                               pushOnAstStack(typeDecl);
+                               unticked_class_declaration_statement(typeDecl);
+                       } finally {
+                               // reduce stack:
+                               astPtr--;
+                               astLengthPtr--;
+                       }
+                       return statement;
+                       // } else {
+                       // throwSyntaxError("Unexpected keyword '" + keyword + "'");
+               } else if (token == TokenNameLBRACE) {
+                       getNextToken();
+                       if (token != TokenNameRBRACE) {
+                               statement = statementList();
+                       }
+                       if (token == TokenNameRBRACE) {
+                               getNextToken();
+                               return statement;
+                       } else {
+                               throwSyntaxError("'}' expected.");
+                       }
+               } else {
+                       if (token != TokenNameSEMICOLON) {
+                               expr();
+                       }
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                               return statement;
+                       } else {
+                               if (token == TokenNameRBRACE) {
+                                       reportSyntaxError("';' expected after expression (Found token: " + scanner.toStringAction(token) + ")");
+                               } else {
+                                       if (token != TokenNameINLINE_HTML && token != TokenNameEOF) {
+                                               throwSyntaxError("';' expected after expression (Found token: " + scanner.toStringAction(token) + ")");
+                                       }
+                                       getNextToken();
+                               }
+                       }
+               }
+               // may be null
+               return statement;
+       }
+
+       private void declare_statement() {
+               // statement
+               // | ':' inner_statement_list T_ENDDECLARE ';'
+               // ;
+               if (token == TokenNameCOLON) {
+                       getNextToken();
+                       // TODO: implement inner_statement_list();
+                       statementList();
+                       if (token != TokenNameenddeclare) {
+                               throwSyntaxError("'enddeclare' expected in 'declare' statement.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameSEMICOLON) {
+                               throwSyntaxError("';' expected after 'enddeclare' keyword.");
+                       }
+                       getNextToken();
+               } else {
+                       statement();
+               }
+       }
+
+       private void declare_list() {
+               // T_STRING '=' static_scalar
+               // | declare_list ',' T_STRING '=' static_scalar
+               while (true) {
+                       if (token != TokenNameIdentifier) {
+                               throwSyntaxError("Identifier expected in 'declare' list.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameEQUAL) {
+                               throwSyntaxError("'=' expected in 'declare' list.");
+                       }
+                       getNextToken();
+                       static_scalar();
+                       if (token != TokenNameCOMMA) {
+                               break;
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void additional_catches() {
+               while (token == TokenNamecatch) {
+                       getNextToken();
+                       if (token != TokenNameLPAREN) {
+                               throwSyntaxError("'(' expected in 'catch' statement.");
+                       }
+                       getNextToken();
+                       fully_qualified_class_name();
+                       if (token != TokenNameVariable) {
+                               throwSyntaxError("Variable expected in 'catch' statement.");
+                       }
+                       addVariableSet();
+                       getNextToken();
+                       if (token != TokenNameRPAREN) {
+                               throwSyntaxError("')' expected in 'catch' statement.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameLBRACE) {
+                               throwSyntaxError("'{' expected in 'catch' statement.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameRBRACE) {
+                               statementList();
+                       }
+                       if (token != TokenNameRBRACE) {
+                               throwSyntaxError("'}' expected in 'catch' statement.");
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void foreach_variable() {
+               // w_variable
+               // | '&' w_variable
+               if (token == TokenNameAND) {
+                       getNextToken();
+               }
+               w_variable(true);
+       }
+
+       private void foreach_optional_arg() {
+               // /* empty */
+               // | T_DOUBLE_ARROW foreach_variable
+               if (token == TokenNameEQUAL_GREATER) {
+                       getNextToken();
+                       foreach_variable();
+               }
+       }
+
+       private void global_var_list() {
+               // global_var_list:
+               // global_var_list ',' global_var
+               // | global_var
+               HashSet set = peekVariableSet();
+               while (true) {
+                       global_var(set);
+                       if (token != TokenNameCOMMA) {
+                               break;
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void global_var(HashSet set) {
+               // global_var:
+               // T_VARIABLE
+               // | '$' r_variable
+               // | '$' '{' expr '}'
+               if (token == TokenNameVariable) {
+                       if (fMethodVariables != null) {
+                               VariableInfo info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_GLOBAL_VAR);
+                               fMethodVariables.put(new String(scanner.getCurrentIdentifierSource()), info);
+                       }
+                       addVariableSet(set);
+                       getNextToken();
+               } else if (token == TokenNameDOLLAR) {
+                       getNextToken();
+                       if (token == TokenNameLBRACE) {
+                               getNextToken();
+                               expr();
+                               if (token != TokenNameRBRACE) {
+                                       throwSyntaxError("'}' expected in global variable.");
+                               }
+                               getNextToken();
+                       } else {
+                               r_variable();
+                       }
+               }
+       }
+
+       private void static_var_list() {
+               // static_var_list:
+               // static_var_list ',' T_VARIABLE
+               // | static_var_list ',' T_VARIABLE '=' static_scalar
+               // | T_VARIABLE
+               // | T_VARIABLE '=' static_scalar,
+               HashSet set = peekVariableSet();
+               while (true) {
+                       if (token == TokenNameVariable) {
+                               if (fMethodVariables != null) {
+                                       VariableInfo info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_STATIC_VAR);
+                                       fMethodVariables.put(new String(scanner.getCurrentIdentifierSource()), info);
+                               }
+                               addVariableSet(set);
+                               getNextToken();
+                               if (token == TokenNameEQUAL) {
+                                       getNextToken();
+                                       static_scalar();
+                               }
+                               if (token != TokenNameCOMMA) {
+                                       break;
+                               }
+                               getNextToken();
+                       } else {
+                               break;
+                       }
+               }
+       }
+
+       private void unset_variables() {
+               // unset_variables:
+               // unset_variable
+               // | unset_variables ',' unset_variable
+               // unset_variable:
+               // variable
+               while (true) {
+                       variable(false, false);
+                       if (token != TokenNameCOMMA) {
+                               break;
+                       }
+                       getNextToken();
+               }
+       }
+
+       private final void initializeModifiers() {
+               this.modifiers = 0;
+               this.modifiersSourceStart = -1;
+       }
+
+       private final void checkAndSetModifiers(int flag) {
+               this.modifiers |= flag;
+               if (this.modifiersSourceStart < 0)
+                       this.modifiersSourceStart = this.scanner.startPosition;
+       }
+
+       private void unticked_class_declaration_statement(TypeDeclaration typeDecl) {
+               initializeModifiers();
+               if (token == TokenNameinterface) {
+                       // interface_entry T_STRING
+                       // interface_extends_list
+                       // '{' class_statement_list '}'
+                       checkAndSetModifiers(AccInterface);
+                       getNextToken();
+                       typeDecl.modifiers = this.modifiers;
+                       typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
+                       typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
+                       if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
+                               typeDecl.name = scanner.getCurrentIdentifierSource();
+                               if (token > TokenNameKEYWORD) {
+                                       problemReporter.phpKeywordWarning(new String[] { scanner.toStringAction(token) }, scanner.getCurrentTokenStartPosition(),
+                                                       scanner.getCurrentTokenEndPosition(), referenceContext, compilationUnit.compilationResult);
+                                       // throwSyntaxError("Don't use a keyword for interface declaration ["
+                                       // + scanner.toStringAction(token) + "].",
+                                       // typeDecl.sourceStart, typeDecl.sourceEnd);
+                               }
+                               getNextToken();
+                               interface_extends_list(typeDecl);
+                       } else {
+                               typeDecl.name = new char[] { ' ' };
+                               throwSyntaxError("Interface name expected after keyword 'interface'.", typeDecl.sourceStart, typeDecl.sourceEnd);
+                               return;
+                       }
+               } else {
+                       // class_entry_type T_STRING extends_from
+                       // implements_list
+                       // '{' class_statement_list'}'
+                       class_entry_type();
+                       typeDecl.modifiers = this.modifiers;
+                       typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
+                       typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
+                       // identifier
+                       // identifier 'extends' identifier
+                       if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
+                               typeDecl.name = scanner.getCurrentIdentifierSource();
+                               if (token > TokenNameKEYWORD) {
+                                       problemReporter.phpKeywordWarning(new String[] { scanner.toStringAction(token) }, scanner.getCurrentTokenStartPosition(),
+                                                       scanner.getCurrentTokenEndPosition(), referenceContext, compilationUnit.compilationResult);
+                                       // throwSyntaxError("Don't use a keyword for class declaration [" +
+                                       // scanner.toStringAction(token) + "].",
+                                       // typeDecl.sourceStart, typeDecl.sourceEnd);
+                               }
+                               getNextToken();
+                               // extends_from:
+                               // /* empty */
+                               // | T_EXTENDS fully_qualified_class_name
+                               if (token == TokenNameextends) {
+                                       interface_extends_list(typeDecl);
+                                       // getNextToken();
+                                       // if (token != TokenNameIdentifier) {
+                                       // throwSyntaxError("Class name expected after keyword
+                                       // 'extends'.",
+                                       // scanner.getCurrentTokenStartPosition(), scanner
+                                       // .getCurrentTokenEndPosition());
+                                       // }
+                               }
+                               implements_list(typeDecl);
+                       } else {
+                               typeDecl.name = new char[] { ' ' };
+                               throwSyntaxError("Class name expected after keyword 'class'.", typeDecl.sourceStart, typeDecl.sourceEnd);
+                               return;
+                       }
+               }
+               // '{' class_statement_list '}'
+               if (token == TokenNameLBRACE) {
+                       getNextToken();
+                       if (token != TokenNameRBRACE) {
+                               ArrayList list = new ArrayList();
+                               class_statement_list(list);
+                               typeDecl.fields = new FieldDeclaration[list.size()];
+                               for (int i = 0; i < list.size(); i++) {
+                                       typeDecl.fields[i] = (FieldDeclaration) list.get(i);
+                               }
+                       }
+                       if (token == TokenNameRBRACE) {
+                               typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'}' expected at end of class body.");
+                       }
+               } else {
+                       throwSyntaxError("'{' expected at start of class body.");
+               }
+       }
+
+       private void class_entry_type() {
+               // T_CLASS
+               // | T_ABSTRACT T_CLASS
+               // | T_FINAL T_CLASS
+               if (token == TokenNameclass) {
+                       getNextToken();
+               } else if (token == TokenNameabstract) {
+                       checkAndSetModifiers(AccAbstract);
+                       getNextToken();
+                       if (token != TokenNameclass) {
+                               throwSyntaxError("Keyword 'class' expected after keyword 'abstract'.");
+                       }
+                       getNextToken();
+               } else if (token == TokenNamefinal) {
+                       checkAndSetModifiers(AccFinal);
+                       getNextToken();
+                       if (token != TokenNameclass) {
+                               throwSyntaxError("Keyword 'class' expected after keyword 'final'.");
+                       }
+                       getNextToken();
+               } else {
+                       throwSyntaxError("Keyword 'class' 'final' or 'abstract' expected");
+               }
+       }
+
+       // private void class_extends(TypeDeclaration typeDecl) {
+       // // /* empty */
+       // // | T_EXTENDS interface_list
+       // if (token == TokenNameextends) {
+       // getNextToken();
+       //
+       // if (token == TokenNameIdentifier) {
+       // getNextToken();
+       // } else {
+       // throwSyntaxError("Class name expected after keyword 'extends'.");
+       // }
+       // }
+       // }
+
+       private void interface_extends_list(TypeDeclaration typeDecl) {
+               // /* empty */
+               // | T_EXTENDS interface_list
+               if (token == TokenNameextends) {
+                       getNextToken();
+                       interface_list();
+               }
+       }
+
+       private void implements_list(TypeDeclaration typeDecl) {
+               // /* empty */
+               // | T_IMPLEMENTS interface_list
+               if (token == TokenNameimplements) {
+                       getNextToken();
+                       interface_list();
+               }
+       }
+
+       private void interface_list() {
+               // interface_list:
+               // fully_qualified_class_name
+               // | interface_list ',' fully_qualified_class_name
+               do {
+                       if (token == TokenNameIdentifier) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("Interface name expected after keyword 'implements'.");
+                       }
+                       if (token != TokenNameCOMMA) {
+                               return;
+                       }
+                       getNextToken();
+               } while (true);
+       }
+
+       // private void classBody(TypeDeclaration typeDecl) {
+       // //'{' [class-element-list] '}'
+       // if (token == TokenNameLBRACE) {
+       // getNextToken();
+       // if (token != TokenNameRBRACE) {
+       // class_statement_list();
+       // }
+       // if (token == TokenNameRBRACE) {
+       // typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
+       // getNextToken();
+       // } else {
+       // throwSyntaxError("'}' expected at end of class body.");
+       // }
+       // } else {
+       // throwSyntaxError("'{' expected at start of class body.");
+       // }
+       // }
+       private void class_statement_list(ArrayList list) {
+               do {
+                       try {
+                               class_statement(list);
+                               if (token == TokenNamepublic || token == TokenNameprotected || token == TokenNameprivate || token == TokenNamestatic
+                                               || token == TokenNameabstract || token == TokenNamefinal || token == TokenNamefunction || token == TokenNamevar
+                                               || token == TokenNameconst) {
+                                       continue;
+                               }
+                               if (token == TokenNameRBRACE) {
+                                       break;
+                               }
+                               throwSyntaxError("'}' at end of class statement.");
+                       } catch (SyntaxError sytaxErr1) {
+                               boolean tokenize = scanner.tokenizeStrings;
+                               if (!tokenize) {
+                                       scanner.tokenizeStrings = true;
+                               }
+                               try {
+                                       // if an error occured,
+                                       // try to find keywords
+                                       // to parse the rest of the string
+                                       while (token != TokenNameEOF) {
+                                               if (token == TokenNamepublic || token == TokenNameprotected || token == TokenNameprivate || token == TokenNamestatic
+                                                               || token == TokenNameabstract || token == TokenNamefinal || token == TokenNamefunction || token == TokenNamevar
+                                                               || token == TokenNameconst) {
+                                                       break;
+                                               }
+                                               // System.out.println(scanner.toStringAction(token));
+                                               getNextToken();
+                                       }
+                                       if (token == TokenNameEOF) {
+                                               throw sytaxErr1;
+                                       }
+                               } finally {
+                                       scanner.tokenizeStrings = tokenize;
+                               }
+                       }
+               } while (true);
+       }
+
+       private void class_statement(ArrayList list) {
+               // class_statement:
+               // variable_modifiers class_variable_declaration ';'
+               // | class_constant_declaration ';'
+               // | method_modifiers T_FUNCTION is_reference T_STRING
+               // '(' parameter_list ')' method_body
+               initializeModifiers();
+               int declarationSourceStart = scanner.getCurrentTokenStartPosition();
+
+               if (token == TokenNamevar) {
+                       checkAndSetModifiers(AccPublic);
+                       problemReporter.phpVarDeprecatedWarning(scanner.getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition(),
+                                       referenceContext, compilationUnit.compilationResult);
+                       getNextToken();
+                       class_variable_declaration(declarationSourceStart, list);
+               } else if (token == TokenNameconst) {
+                       checkAndSetModifiers(AccFinal | AccPublic);
+                       class_constant_declaration(declarationSourceStart, list);
+                       if (token != TokenNameSEMICOLON) {
+                               throwSyntaxError("';' expected after class const declaration.");
+                       }
+                       getNextToken();
+               } else {
+                       boolean hasModifiers = member_modifiers();
+                       if (token == TokenNamefunction) {
+                               if (!hasModifiers) {
+                                       checkAndSetModifiers(AccPublic);
+                               }
+                               MethodDeclaration methodDecl = new MethodDeclaration(this.compilationUnit.compilationResult);
+                               methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
+                               methodDecl.modifiers = this.modifiers;
+                               methodDecl.type = MethodDeclaration.METHOD_DEFINITION;
+                               try {
+                                       getNextToken();
+                                       functionDefinition(methodDecl);
+                               } finally {
+                                       int sourceEnd = methodDecl.sourceEnd;
+                                       if (sourceEnd <= 0 || methodDecl.declarationSourceStart > sourceEnd) {
+                                               sourceEnd = methodDecl.declarationSourceStart + 1;
+                                       }
+                                       methodDecl.declarationSourceEnd = sourceEnd;
+                                       methodDecl.sourceEnd = sourceEnd;
+                               }
+                       } else {
+                               if (!hasModifiers) {
+                                       throwSyntaxError("'public' 'private' or 'protected' modifier expected for field declarations.");
+                               }
+                               class_variable_declaration(declarationSourceStart, list);
+                       }
+               }
+       }
+
+       private void class_constant_declaration(int declarationSourceStart, ArrayList list) {
+               // class_constant_declaration ',' T_STRING '=' static_scalar
+               // | T_CONST T_STRING '=' static_scalar
+               if (token != TokenNameconst) {
+                       throwSyntaxError("'const' keyword expected in class declaration.");
+               } else {
+                       getNextToken();
+               }
+               while (true) {
+                       if (token != TokenNameIdentifier) {
+                               throwSyntaxError("Identifier expected in class const declaration.");
+                       }
+                       FieldDeclaration fieldDeclaration = new FieldDeclaration(scanner.getCurrentIdentifierSource(), scanner
+                                       .getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition());
+                       fieldDeclaration.modifiers = this.modifiers;
+                       fieldDeclaration.declarationSourceStart = declarationSourceStart;
+                       fieldDeclaration.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
+                       fieldDeclaration.modifiersSourceStart = declarationSourceStart;
+                       // fieldDeclaration.type
+                       list.add(fieldDeclaration);
+                       getNextToken();
+                       if (token != TokenNameEQUAL) {
+                               throwSyntaxError("'=' expected in class const declaration.");
+                       }
+                       getNextToken();
+                       static_scalar();
+                       if (token != TokenNameCOMMA) {
+                               break; // while(true)-loop
+                       }
+                       getNextToken();
+               }
+       }
+
+       // private void variable_modifiers() {
+       // // variable_modifiers:
+       // // non_empty_member_modifiers
+       // //| T_VAR
+       // initializeModifiers();
+       // if (token == TokenNamevar) {
+       // checkAndSetModifiers(AccPublic);
+       // reportSyntaxError(
+       // "Keyword 'var' is deprecated. Please use 'public' 'private' or
+       // 'protected'
+       // modifier for field declarations.",
+       // scanner.getCurrentTokenStartPosition(), scanner
+       // .getCurrentTokenEndPosition());
+       // getNextToken();
+       // } else {
+       // if (!member_modifiers()) {
+       // throwSyntaxError("'public' 'private' or 'protected' modifier expected for
+       // field declarations.");
+       // }
+       // }
+       // }
+       // private void method_modifiers() {
+       // //method_modifiers:
+       // // /* empty */
+       // //| non_empty_member_modifiers
+       // initializeModifiers();
+       // if (!member_modifiers()) {
+       // checkAndSetModifiers(AccPublic);
+       // }
+       // }
+       private boolean member_modifiers() {
+               // T_PUBLIC
+               // | T_PROTECTED
+               // | T_PRIVATE
+               // | T_STATIC
+               // | T_ABSTRACT
+               // | T_FINAL
+               boolean foundToken = false;
+               while (true) {
+                       if (token == TokenNamepublic) {
+                               checkAndSetModifiers(AccPublic);
+                               getNextToken();
+                               foundToken = true;
+                       } else if (token == TokenNameprotected) {
+                               checkAndSetModifiers(AccProtected);
+                               getNextToken();
+                               foundToken = true;
+                       } else if (token == TokenNameprivate) {
+                               checkAndSetModifiers(AccPrivate);
+                               getNextToken();
+                               foundToken = true;
+                       } else if (token == TokenNamestatic) {
+                               checkAndSetModifiers(AccStatic);
+                               getNextToken();
+                               foundToken = true;
+                       } else if (token == TokenNameabstract) {
+                               checkAndSetModifiers(AccAbstract);
+                               getNextToken();
+                               foundToken = true;
+                       } else if (token == TokenNamefinal) {
+                               checkAndSetModifiers(AccFinal);
+                               getNextToken();
+                               foundToken = true;
+                       } else {
+                               break;
+                       }
+               }
+               return foundToken;
+       }
+
+       private void class_variable_declaration(int declarationSourceStart, ArrayList list) {
+               // class_variable_declaration:
+               // class_variable_declaration ',' T_VARIABLE
+               // | class_variable_declaration ',' T_VARIABLE '=' static_scalar
+               // | T_VARIABLE
+               // | T_VARIABLE '=' static_scalar
+               char[] classVariable;
+               do {
+                       if (token == TokenNameVariable) {
+                               classVariable = scanner.getCurrentIdentifierSource();
+                               // indexManager.addIdentifierInformation('v', classVariable, buf, -1,
+                               // -1);
+                               FieldDeclaration fieldDeclaration = new FieldDeclaration(classVariable, scanner.getCurrentTokenStartPosition(), scanner
+                                               .getCurrentTokenEndPosition());
+                               fieldDeclaration.modifiers = this.modifiers;
+                               fieldDeclaration.declarationSourceStart = declarationSourceStart;
+                               fieldDeclaration.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
+                               fieldDeclaration.modifiersSourceStart = declarationSourceStart;
+                               list.add(fieldDeclaration);
+                               if (fTypeVariables != null) {
+                                       VariableInfo info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_CLASS_UNIT);
+                                       fTypeVariables.put(new String(scanner.getCurrentIdentifierSource()), info);
+                               }
+                               getNextToken();
+                               if (token == TokenNameEQUAL) {
+                                       getNextToken();
+                                       static_scalar();
+                               }
+                       } else {
+                               // if (token == TokenNamethis) {
+                               // throwSyntaxError("'$this' not allowed after keyword 'public'
+                               // 'protected' 'private' 'var'.");
+                               // }
+                               throwSyntaxError("Variable expected after keyword 'public' 'protected' 'private' 'var'.");
+                       }
+                       if (token != TokenNameCOMMA) {
+                               break;
+                       }
+                       getNextToken();
+               } while (true);
+               if (token != TokenNameSEMICOLON) {
+                       throwSyntaxError("';' expected after field declaration.");
+               }
+               getNextToken();
+       }
+
+       private void functionDefinition(MethodDeclaration methodDecl) {
+               boolean isAbstract = false;
+               if (astPtr == 0) {
+                       if (compilationUnit != null) {
+                               compilationUnit.types.add(methodDecl);
+                       }
+               } else {
+                       ASTNode node = astStack[astPtr];
+                       if (node instanceof TypeDeclaration) {
+                               TypeDeclaration typeDecl = ((TypeDeclaration) node);
+                               if (typeDecl.methods == null) {
+                                       typeDecl.methods = new AbstractMethodDeclaration[] { methodDecl };
+                               } else {
+                                       AbstractMethodDeclaration[] newMethods;
+                                       System.arraycopy(typeDecl.methods, 0, newMethods = new AbstractMethodDeclaration[typeDecl.methods.length + 1], 0,
+                                                       typeDecl.methods.length);
+                                       newMethods[typeDecl.methods.length] = methodDecl;
+                                       typeDecl.methods = newMethods;
+                               }
+                               if ((typeDecl.modifiers & AccAbstract) == AccAbstract) {
+                                       isAbstract = true;
+                               } else if ((typeDecl.modifiers & AccInterface) == AccInterface) {
+                                       isAbstract = true;
+                               }
+                       }
+               }
+               try {
+                       pushFunctionVariableSet();
+                       functionDeclarator(methodDecl);
+                       if (token == TokenNameSEMICOLON) {
+                               if (!isAbstract) {
+                                       methodDecl.sourceEnd = scanner.getCurrentTokenStartPosition() - 1;
+                                       throwSyntaxError("Body declaration expected for method: " + new String(methodDecl.selector));
+                               }
+                               getNextToken();
+                               return;
+                       }
+                       functionBody(methodDecl);
+               } finally {
+                       if (!fStackUnassigned.isEmpty()) {
+                               fStackUnassigned.remove(fStackUnassigned.size() - 1);
+                       }
+               }
+       }
+
+       private void functionDeclarator(MethodDeclaration methodDecl) {
+               // identifier '(' [parameter-list] ')'
+               if (token == TokenNameAND) {
+                       getNextToken();
+               }
+               methodDecl.sourceStart = scanner.getCurrentTokenStartPosition();
+               methodDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
+               if (Scanner.isIdentifierOrKeyword(token)) {
+                       methodDecl.selector = scanner.getCurrentIdentifierSource();
+                       if (token > TokenNameKEYWORD) {
+                               problemReporter.phpKeywordWarning(new String[] { scanner.toStringAction(token) }, scanner.getCurrentTokenStartPosition(),
+                                               scanner.getCurrentTokenEndPosition(), referenceContext, compilationUnit.compilationResult);
+                       }
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               methodDecl.sourceEnd = scanner.getCurrentTokenStartPosition() - 1;
+                               throwSyntaxError("'(' expected in function declaration.");
+                       }
+                       if (token != TokenNameRPAREN) {
+                               parameter_list(methodDecl);
+                       }
+                       if (token != TokenNameRPAREN) {
+                               methodDecl.sourceEnd = scanner.getCurrentTokenStartPosition() - 1;
+                               throwSyntaxError("')' expected in function declaration.");
+                       } else {
+                               methodDecl.bodyStart = scanner.getCurrentTokenEndPosition() + 1;
+                               getNextToken();
+                       }
+               } else {
+                       methodDecl.selector = "<undefined>".toCharArray();
+                       methodDecl.sourceEnd = scanner.getCurrentTokenStartPosition() - 1;
+                       throwSyntaxError("Function name expected after keyword 'function'.");
+               }
+       }
+
+       //
+       private void parameter_list(MethodDeclaration methodDecl) {
+               // non_empty_parameter_list
+               // | /* empty */
+               non_empty_parameter_list(methodDecl, true);
+       }
+
+       private void non_empty_parameter_list(MethodDeclaration methodDecl, boolean empty_allowed) {
+               // optional_class_type T_VARIABLE
+               // | optional_class_type '&' T_VARIABLE
+               // | optional_class_type '&' T_VARIABLE '=' static_scalar
+               // | optional_class_type T_VARIABLE '=' static_scalar
+               // | non_empty_parameter_list ',' optional_class_type T_VARIABLE
+               // | non_empty_parameter_list ',' optional_class_type '&' T_VARIABLE
+               // | non_empty_parameter_list ',' optional_class_type '&' T_VARIABLE '='
+               // static_scalar
+               // | non_empty_parameter_list ',' optional_class_type T_VARIABLE '='
+               // static_scalar
+               char[] typeIdentifier = null;
+               if (token == TokenNameIdentifier || token == TokenNameVariable || token == TokenNameAND) {
+                       HashSet set = peekVariableSet();
+                       while (true) {
+                               if (token == TokenNameIdentifier) {
+                                       typeIdentifier = scanner.getCurrentIdentifierSource();
+                                       getNextToken();
+                               }
+                               if (token == TokenNameAND) {
+                                       getNextToken();
+                               }
+                               if (token == TokenNameVariable) {
+                                       if (fMethodVariables != null) {
+                                               VariableInfo info;
+                                               if (methodDecl.type == MethodDeclaration.FUNCTION_DEFINITION) {
+                                                       info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_FUNCTION_DEFINITION);
+                                               } else {
+                                                       info = new VariableInfo(scanner.getCurrentTokenStartPosition(), VariableInfo.LEVEL_METHOD_DEFINITION);
+                                               }
+                                               info.typeIdentifier = typeIdentifier;
+                                               fMethodVariables.put(new String(scanner.getCurrentIdentifierSource()), info);
+                                       }
+                                       addVariableSet(set);
+                                       getNextToken();
+                                       if (token == TokenNameEQUAL) {
+                                               getNextToken();
+                                               static_scalar();
+                                       }
+                               } else {
+                                       throwSyntaxError("Variable expected in parameter list.");
+                               }
+                               if (token != TokenNameCOMMA) {
+                                       break;
+                               }
+                               getNextToken();
+                       }
+                       return;
+               }
+               if (!empty_allowed) {
+                       throwSyntaxError("Identifier expected in parameter list.");
+               }
+       }
+
+       private void optional_class_type() {
+               // /* empty */
+               // | T_STRING
+       }
+
+       // private void parameterDeclaration() {
+       // //variable
+       // //variable-reference
+       // if (token == TokenNameAND) {
+       // getNextToken();
+       // if (isVariable()) {
+       // getNextToken();
+       // } else {
+       // throwSyntaxError("Variable expected after reference operator '&'.");
+       // }
+       // }
+       // //variable '=' constant
+       // if (token == TokenNameVariable) {
+       // getNextToken();
+       // if (token == TokenNameEQUAL) {
+       // getNextToken();
+       // static_scalar();
+       // }
+       // return;
+       // }
+       // // if (token == TokenNamethis) {
+       // // throwSyntaxError("Reserved word '$this' not allowed in parameter
+       // // declaration.");
+       // // }
+       // }
+
+       private void labeledStatementList() {
+               if (token != TokenNamecase && token != TokenNamedefault) {
+                       throwSyntaxError("'case' or 'default' expected.");
+               }
+               do {
+                       if (token == TokenNamecase) {
+                               getNextToken();
+                               expr(); // constant();
+                               if (token == TokenNameCOLON || token == TokenNameSEMICOLON) {
+                                       getNextToken();
+                                       if (token == TokenNamecase || token == TokenNamedefault) {
+                                               // empty case statement ?
+                                               continue;
+                                       }
+                                       statementList();
+                               }
+                               // else if (token == TokenNameSEMICOLON) {
+                               // setMarker(
+                               // "':' expected after 'case' keyword (Found token: " +
+                               // scanner.toStringAction(token) + ")",
+                               // scanner.getCurrentTokenStartPosition(),
+                               // scanner.getCurrentTokenEndPosition(),
+                               // INFO);
+                               // getNextToken();
+                               // if (token == TokenNamecase) { // empty case statement ?
+                               // continue;
+                               // }
+                               // statementList();
+                               // }
+                               else {
+                                       throwSyntaxError("':' character expected after 'case' constant (Found token: " + scanner.toStringAction(token) + ")");
+                               }
+                       } else { // TokenNamedefault
+                               getNextToken();
+                               if (token == TokenNameCOLON || token == TokenNameSEMICOLON) {
+                                       getNextToken();
+                                       if (token == TokenNameRBRACE) {
+                                               // empty default case
+                                               break;
+                                       }
+                                       if (token != TokenNamecase) {
+                                               statementList();
+                                       }
+                               } else {
+                                       throwSyntaxError("':' character expected after 'default'.");
+                               }
+                       }
+               } while (token == TokenNamecase || token == TokenNamedefault);
+       }
+
+       private void ifStatementColon(IfStatement iState) {
+               // T_IF '(' expr ')' ':' inner_statement_list new_elseif_list
+               // new_else_single T_ENDIF ';'
+               HashSet assignedVariableSet = null;
+               try {
+                       Block b = inner_statement_list();
+                       iState.thenStatement = b;
+                       checkUnreachable(iState, b);
+               } finally {
+                       assignedVariableSet = removeIfVariableSet();
+               }
+               if (token == TokenNameelseif) {
+                       try {
+                               pushIfVariableSet();
+                               new_elseif_list(iState);
+                       } finally {
+                               HashSet set = removeIfVariableSet();
+                               if (assignedVariableSet != null && set != null) {
+                                       assignedVariableSet.addAll(set);
+                               }
+                       }
+               }
+               try {
+                       pushIfVariableSet();
+                       new_else_single(iState);
+               } finally {
+                       HashSet set = removeIfVariableSet();
+                       if (assignedVariableSet != null) {
+                               HashSet topSet = peekVariableSet();
+                               if (topSet != null) {
+                                       if (set != null) {
+                                               topSet.addAll(set);
+                                       }
+                                       topSet.addAll(assignedVariableSet);
+                               }
+                       }
+               }
+               if (token != TokenNameendif) {
+                       throwSyntaxError("'endif' expected.");
+               }
+               getNextToken();
+               if (token != TokenNameSEMICOLON) {
+                       reportSyntaxError("';' expected after if-statement.");
+                       iState.sourceEnd = scanner.getCurrentTokenStartPosition();
+               } else {
+                       iState.sourceEnd = scanner.getCurrentTokenEndPosition();
+                       getNextToken();
+               }
+       }
+
+       private void ifStatement(IfStatement iState) {
+               // T_IF '(' expr ')' statement elseif_list else_single
+               HashSet assignedVariableSet = null;
+               try {
+                       pushIfVariableSet();
+                       Statement s = statement();
+                       iState.thenStatement = s;
+                       checkUnreachable(iState, s);
+               } finally {
+                       assignedVariableSet = removeIfVariableSet();
+               }
+
+               if (token == TokenNameelseif) {
+                       try {
+                               pushIfVariableSet();
+                               elseif_list(iState);
+                       } finally {
+                               HashSet set = removeIfVariableSet();
+                               if (assignedVariableSet != null && set != null) {
+                                       assignedVariableSet.addAll(set);
+                               }
+                       }
+               }
+               try {
+                       pushIfVariableSet();
+                       else_single(iState);
+               } finally {
+                       HashSet set = removeIfVariableSet();
+                       if (assignedVariableSet != null) {
+                               HashSet topSet = peekVariableSet();
+                               if (topSet != null) {
+                                       if (set != null) {
+                                               topSet.addAll(set);
+                                       }
+                                       topSet.addAll(assignedVariableSet);
+                               }
+                       }
+               }
+       }
+
+       private void elseif_list(IfStatement iState) {
+               // /* empty */
+               // | elseif_list T_ELSEIF '(' expr ')' statement
+               ArrayList conditionList = new ArrayList();
+               ArrayList statementList = new ArrayList();
+               Expression e;
+               Statement s;
+               while (token == TokenNameelseif) {
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'(' expected after 'elseif' keyword.");
+                       }
+                       e = expr();
+                       conditionList.add(e);
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("')' expected after 'elseif' condition.");
+                       }
+                       s = statement();
+                       statementList.add(s);
+                       checkUnreachable(iState, s);
+               }
+               iState.elseifConditions = new Expression[conditionList.size()];
+               iState.elseifStatements = new Statement[statementList.size()];
+               conditionList.toArray(iState.elseifConditions);
+               statementList.toArray(iState.elseifStatements);
+       }
+
+       private void new_elseif_list(IfStatement iState) {
+               // /* empty */
+               // | new_elseif_list T_ELSEIF '(' expr ')' ':' inner_statement_list
+               ArrayList conditionList = new ArrayList();
+               ArrayList statementList = new ArrayList();
+               Expression e;
+               Block b;
+               while (token == TokenNameelseif) {
+                       getNextToken();
+                       if (token == TokenNameLPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("'(' expected after 'elseif' keyword.");
+                       }
+                       e = expr();
+                       conditionList.add(e);
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("')' expected after 'elseif' condition.");
+                       }
+                       if (token == TokenNameCOLON) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("':' expected after 'elseif' keyword.");
+                       }
+                       b = inner_statement_list();
+                       statementList.add(b);
+                       checkUnreachable(iState, b);
+               }
+               iState.elseifConditions = new Expression[conditionList.size()];
+               iState.elseifStatements = new Statement[statementList.size()];
+               conditionList.toArray(iState.elseifConditions);
+               statementList.toArray(iState.elseifStatements);
+       }
+
+       private void else_single(IfStatement iState) {
+               // /* empty */
+               // T_ELSE statement
+               if (token == TokenNameelse) {
+                       getNextToken();
+                       Statement s = statement();
+                       iState.elseStatement = s;
+                       checkUnreachable(iState, s);
+               } else {
+                       iState.checkUnreachable = false;
+               }
+               iState.sourceEnd = scanner.getCurrentTokenStartPosition();
+       }
+
+       private void new_else_single(IfStatement iState) {
+               // /* empty */
+               // | T_ELSE ':' inner_statement_list
+               if (token == TokenNameelse) {
+                       getNextToken();
+                       if (token == TokenNameCOLON) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("':' expected after 'else' keyword.");
+                       }
+                       Block b = inner_statement_list();
+                       iState.elseStatement = b;
+                       checkUnreachable(iState, b);
+               } else {
+                       iState.checkUnreachable = false;
+               }
+       }
+
+       private Block inner_statement_list() {
+               // inner_statement_list inner_statement
+               // /* empty */
+               return statementList();
+       }
+
+       /**
+        * @param iState
+        * @param b
+        */
+       private void checkUnreachable(IfStatement iState, Statement s) {
+               if (s instanceof Block) {
+                       Block b = (Block) s;
+                       if (b.statements == null || b.statements.length == 0) {
+                               iState.checkUnreachable = false;
+                       } else {
+                               int off = b.statements.length - 1;
+                               if (!(b.statements[off] instanceof ReturnStatement) && !(b.statements[off] instanceof ContinueStatement)
+                                               && !(b.statements[off] instanceof BreakStatement)) {
+                                       if (!(b.statements[off] instanceof IfStatement) || !((IfStatement) b.statements[off]).checkUnreachable) {
+                                               iState.checkUnreachable = false;
+                                       }
+                               }
+                       }
+               } else {
+                       if (!(s instanceof ReturnStatement) && !(s instanceof ContinueStatement) && !(s instanceof BreakStatement)) {
+                               if (!(s instanceof IfStatement) || !((IfStatement) s).checkUnreachable) {
+                                       iState.checkUnreachable = false;
+                               }
+                       }
+               }
+       }
+
+       // private void elseifStatementList() {
+       // do {
+       // elseifStatement();
+       // switch (token) {
+       // case TokenNameelse:
+       // getNextToken();
+       // if (token == TokenNameCOLON) {
+       // getNextToken();
+       // if (token != TokenNameendif) {
+       // statementList();
+       // }
+       // return;
+       // } else {
+       // if (token == TokenNameif) { //'else if'
+       // getNextToken();
+       // } else {
+       // throwSyntaxError("':' expected after 'else'.");
+       // }
+       // }
+       // break;
+       // case TokenNameelseif:
+       // getNextToken();
+       // break;
+       // default:
+       // return;
+       // }
+       // } while (true);
+       // }
+
+       // private void elseifStatement() {
+       // if (token == TokenNameLPAREN) {
+       // getNextToken();
+       // expr();
+       // if (token != TokenNameRPAREN) {
+       // throwSyntaxError("')' expected in else-if-statement.");
+       // }
+       // getNextToken();
+       // if (token != TokenNameCOLON) {
+       // throwSyntaxError("':' expected in else-if-statement.");
+       // }
+       // getNextToken();
+       // if (token != TokenNameendif) {
+       // statementList();
+       // }
+       // }
+       // }
+
+       private void switchStatement() {
+               if (token == TokenNameCOLON) {
+                       // ':' [labeled-statement-list] 'endswitch' ';'
+                       getNextToken();
+                       labeledStatementList();
+                       if (token != TokenNameendswitch) {
+                               throwSyntaxError("'endswitch' expected.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameSEMICOLON) {
+                               throwSyntaxError("';' expected after switch-statement.");
+                       }
+                       getNextToken();
+               } else {
+                       // '{' [labeled-statement-list] '}'
+                       if (token != TokenNameLBRACE) {
+                               throwSyntaxError("'{' expected in switch statement.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameRBRACE) {
+                               labeledStatementList();
+                       }
+                       if (token != TokenNameRBRACE) {
+                               throwSyntaxError("'}' expected in switch statement.");
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void forStatement() {
+               if (token == TokenNameCOLON) {
+                       getNextToken();
+                       statementList();
+                       if (token != TokenNameendfor) {
+                               throwSyntaxError("'endfor' expected.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameSEMICOLON) {
+                               throwSyntaxError("';' expected after for-statement.");
+                       }
+                       getNextToken();
+               } else {
+                       statement();
+               }
+       }
+
+       private void whileStatement() {
+               // ':' statement-list 'endwhile' ';'
+               if (token == TokenNameCOLON) {
+                       getNextToken();
+                       statementList();
+                       if (token != TokenNameendwhile) {
+                               throwSyntaxError("'endwhile' expected.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameSEMICOLON) {
+                               throwSyntaxError("';' expected after while-statement.");
+                       }
+                       getNextToken();
+               } else {
+                       statement();
+               }
+       }
+
+       private void foreachStatement() {
+               if (token == TokenNameCOLON) {
+                       getNextToken();
+                       statementList();
+                       if (token != TokenNameendforeach) {
+                               throwSyntaxError("'endforeach' expected.");
+                       }
+                       getNextToken();
+                       if (token != TokenNameSEMICOLON) {
+                               throwSyntaxError("';' expected after foreach-statement.");
+                       }
+                       getNextToken();
+               } else {
+                       statement();
+               }
+       }
+
+       // private void exitStatus() {
+       // if (token == TokenNameLPAREN) {
+       // getNextToken();
+       // } else {
+       // throwSyntaxError("'(' expected in 'exit-status'.");
+       // }
+       // if (token != TokenNameRPAREN) {
+       // expression();
+       // }
+       // if (token == TokenNameRPAREN) {
+       // getNextToken();
+       // } else {
+       // throwSyntaxError("')' expected after 'exit-status'.");
+       // }
+       // }
+       private void expressionList() {
+               do {
+                       expr();
+                       if (token == TokenNameCOMMA) {
+                               getNextToken();
+                       } else {
+                               break;
+                       }
+               } while (true);
+       }
+
+       private Expression expr() {
+               // r_variable
+               // | expr_without_variable
+               // if (token!=TokenNameEOF) {
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: expr()");
+               }
+               return expr_without_variable(true);
+               // }
+       }
+
+       private Expression expr_without_variable(boolean only_variable) {
+               int exprSourceStart = scanner.getCurrentTokenStartPosition();
+               int exprSourceEnd = scanner.getCurrentTokenEndPosition();
+               Expression expression = new Expression();
+               expression.sourceStart = exprSourceStart;
+               // default, may be overwritten
+               expression.sourceEnd = exprSourceEnd;
+               try {
+                       // internal_functions_in_yacc
+                       // | T_CLONE expr
+                       // | T_PRINT expr
+                       // | '(' expr ')'
+                       // | '@' expr
+                       // | '+' expr
+                       // | '-' expr
+                       // | '!' expr
+                       // | '~' expr
+                       // | T_INC rw_variable
+                       // | T_DEC rw_variable
+                       // | T_INT_CAST expr
+                       // | T_DOUBLE_CAST expr
+                       // | T_STRING_CAST expr
+                       // | T_ARRAY_CAST expr
+                       // | T_OBJECT_CAST expr
+                       // | T_BOOL_CAST expr
+                       // | T_UNSET_CAST expr
+                       // | T_EXIT exit_expr
+                       // | scalar
+                       // | T_ARRAY '(' array_pair_list ')'
+                       // | '`' encaps_list '`'
+                       // | T_LIST '(' assignment_list ')' '=' expr
+                       // | T_NEW class_name_reference ctor_arguments
+                       // | variable '=' expr
+                       // | variable '=' '&' variable
+                       // | variable '=' '&' T_NEW class_name_reference ctor_arguments
+                       // | variable T_PLUS_EQUAL expr
+                       // | variable T_MINUS_EQUAL expr
+                       // | variable T_MUL_EQUAL expr
+                       // | variable T_DIV_EQUAL expr
+                       // | variable T_CONCAT_EQUAL expr
+                       // | variable T_MOD_EQUAL expr
+                       // | variable T_AND_EQUAL expr
+                       // | variable T_OR_EQUAL expr
+                       // | variable T_XOR_EQUAL expr
+                       // | variable T_SL_EQUAL expr
+                       // | variable T_SR_EQUAL expr
+                       // | rw_variable T_INC
+                       // | rw_variable T_DEC
+                       // | expr T_BOOLEAN_OR expr
+                       // | expr T_BOOLEAN_AND expr
+                       // | expr T_LOGICAL_OR expr
+                       // | expr T_LOGICAL_AND expr
+                       // | expr T_LOGICAL_XOR expr
+                       // | expr '|' expr
+                       // | expr '&' expr
+                       // | expr '^' expr
+                       // | expr '.' expr
+                       // | expr '+' expr
+                       // | expr '-' expr
+                       // | expr '*' expr
+                       // | expr '/' expr
+                       // | expr '%' expr
+                       // | expr T_SL expr
+                       // | expr T_SR expr
+                       // | expr T_IS_IDENTICAL expr
+                       // | expr T_IS_NOT_IDENTICAL expr
+                       // | expr T_IS_EQUAL expr
+                       // | expr T_IS_NOT_EQUAL expr
+                       // | expr '<' expr
+                       // | expr T_IS_SMALLER_OR_EQUAL expr
+                       // | expr '>' expr
+                       // | expr T_IS_GREATER_OR_EQUAL expr
+                       // | expr T_INSTANCEOF class_name_reference
+                       // | expr '?' expr ':' expr
+                       if (Scanner.TRACE) {
+                               System.out.println("TRACE: expr_without_variable() PART 1");
+                       }
+                       switch (token) {
+                       case TokenNameisset:
+                               // T_ISSET '(' isset_variables ')'
+                               getNextToken();
+                               if (token != TokenNameLPAREN) {
+                                       throwSyntaxError("'(' expected after keyword 'isset'");
+                               }
+                               getNextToken();
+                               isset_variables();
+                               if (token != TokenNameRPAREN) {
+                                       throwSyntaxError("')' expected after keyword 'isset'");
+                               }
+                               getNextToken();
+                               break;
+                       case TokenNameempty:
+                               getNextToken();
+                               if (token != TokenNameLPAREN) {
+                                       throwSyntaxError("'(' expected after keyword 'empty'");
+                               }
+                               getNextToken();
+                               variable(true, false);
+                               if (token != TokenNameRPAREN) {
+                                       throwSyntaxError("')' expected after keyword 'empty'");
+                               }
+                               getNextToken();
+                               break;
+                       case TokenNameeval:
+                       case TokenNameinclude:
+                       case TokenNameinclude_once:
+                       case TokenNamerequire:
+                       case TokenNamerequire_once:
+                               internal_functions_in_yacc();
+                               break;
+                       // | '(' expr ')'
+                       case TokenNameLPAREN:
+                               getNextToken();
+                               expr();
+                               if (token == TokenNameRPAREN) {
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("')' expected in expression.");
+                               }
+                               break;
+                       // | T_CLONE expr
+                       // | T_PRINT expr
+                       // | '@' expr
+                       // | '+' expr
+                       // | '-' expr
+                       // | '!' expr
+                       // | '~' expr
+                       // | T_INT_CAST expr
+                       // | T_DOUBLE_CAST expr
+                       // | T_STRING_CAST expr
+                       // | T_ARRAY_CAST expr
+                       // | T_OBJECT_CAST expr
+                       // | T_BOOL_CAST expr
+                       // | T_UNSET_CAST expr
+                       case TokenNameclone:
+                       case TokenNameprint:
+                       case TokenNameAT:
+                       case TokenNamePLUS:
+                       case TokenNameMINUS:
+                       case TokenNameNOT:
+                       case TokenNameTWIDDLE:
+                       case TokenNameintCAST:
+                       case TokenNamedoubleCAST:
+                       case TokenNamestringCAST:
+                       case TokenNamearrayCAST:
+                       case TokenNameobjectCAST:
+                       case TokenNameboolCAST:
+                       case TokenNameunsetCAST:
+                               getNextToken();
+                               expr();
+                               break;
+                       case TokenNameexit:
+                               getNextToken();
+                               exit_expr();
+                               break;
+                       // scalar:
+                       // T_STRING
+                       // | T_STRING_VARNAME
+                       // | class_constant
+                       // | T_START_HEREDOC encaps_list T_END_HEREDOC
+                       // | '`' encaps_list '`'
+                       // | common_scalar
+                       // | '`' encaps_list '`'
+                       // case TokenNameEncapsedString0:
+                       // scanner.encapsedStringStack.push(new Character('`'));
+                       // getNextToken();
+                       // try {
+                       // if (token == TokenNameEncapsedString0) {
+                       // } else {
+                       // encaps_list();
+                       // if (token != TokenNameEncapsedString0) {
+                       // throwSyntaxError("\'`\' expected at end of string" + "(Found token: " +
+                       // scanner.toStringAction(token) + " )");
+                       // }
+                       // }
+                       // } finally {
+                       // scanner.encapsedStringStack.pop();
+                       // getNextToken();
+                       // }
+                       // break;
+                       // // | '\'' encaps_list '\''
+                       // case TokenNameEncapsedString1:
+                       // scanner.encapsedStringStack.push(new Character('\''));
+                       // getNextToken();
+                       // try {
+                       // exprSourceStart = scanner.getCurrentTokenStartPosition();
+                       // if (token == TokenNameEncapsedString1) {
+                       // expression = new
+                       // StringLiteralSQ(scanner.getCurrentStringLiteralSource(exprSourceStart),
+                       // exprSourceStart, scanner
+                       // .getCurrentTokenEndPosition());
+                       // } else {
+                       // encaps_list();
+                       // if (token != TokenNameEncapsedString1) {
+                       // throwSyntaxError("\'\'\' expected at end of string" + "(Found token: "
+                       // + scanner.toStringAction(token) + " )");
+                       // } else {
+                       // expression = new
+                       // StringLiteralSQ(scanner.getCurrentStringLiteralSource(exprSourceStart),
+                       // exprSourceStart, scanner
+                       // .getCurrentTokenEndPosition());
+                       // }
+                       // }
+                       // } finally {
+                       // scanner.encapsedStringStack.pop();
+                       // getNextToken();
+                       // }
+                       // break;
+                       // //| '"' encaps_list '"'
+                       // case TokenNameEncapsedString2:
+                       // scanner.encapsedStringStack.push(new Character('"'));
+                       // getNextToken();
+                       // try {
+                       // exprSourceStart = scanner.getCurrentTokenStartPosition();
+                       // if (token == TokenNameEncapsedString2) {
+                       // expression = new
+                       // StringLiteralDQ(scanner.getCurrentStringLiteralSource(exprSourceStart),
+                       // exprSourceStart, scanner
+                       // .getCurrentTokenEndPosition());
+                       // } else {
+                       // encaps_list();
+                       // if (token != TokenNameEncapsedString2) {
+                       // throwSyntaxError("'\"' expected at end of string" + "(Found token: " +
+                       // scanner.toStringAction(token) + " )");
+                       // } else {
+                       // expression = new
+                       // StringLiteralDQ(scanner.getCurrentStringLiteralSource(exprSourceStart),
+                       // exprSourceStart, scanner
+                       // .getCurrentTokenEndPosition());
+                       // }
+                       // }
+                       // } finally {
+                       // scanner.encapsedStringStack.pop();
+                       // getNextToken();
+                       // }
+                       // break;
+                       case TokenNameStringDoubleQuote:
+                               expression = new StringLiteralDQ(scanner.getCurrentStringLiteralSource(), scanner.getCurrentTokenStartPosition(), scanner
+                                               .getCurrentTokenEndPosition());
+                               common_scalar();
+                               break;
+                       case TokenNameStringSingleQuote:
+                               expression = new StringLiteralSQ(scanner.getCurrentStringLiteralSource(), scanner.getCurrentTokenStartPosition(), scanner
+                                               .getCurrentTokenEndPosition());
+                               common_scalar();
+                               break;
+                       case TokenNameIntegerLiteral:
+                       case TokenNameDoubleLiteral:
+                       case TokenNameStringInterpolated:
+                       case TokenNameFILE:
+                       case TokenNameLINE:
+                       case TokenNameCLASS_C:
+                       case TokenNameMETHOD_C:
+                       case TokenNameFUNC_C:
+                               common_scalar();
+                               break;
+                       case TokenNameHEREDOC:
+                               getNextToken();
+                               break;
+                       case TokenNamearray:
+                               // T_ARRAY '(' array_pair_list ')'
+                               getNextToken();
+                               if (token == TokenNameLPAREN) {
+                                       getNextToken();
+                                       if (token == TokenNameRPAREN) {
+                                               getNextToken();
+                                               break;
+                                       }
+                                       array_pair_list();
+                                       if (token != TokenNameRPAREN) {
+                                               throwSyntaxError("')' or ',' expected after keyword 'array'" + "(Found token: " + scanner.toStringAction(token) + ")");
+                                       }
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("'(' expected after keyword 'array'" + "(Found token: " + scanner.toStringAction(token) + ")");
+                               }
+                               break;
+                       case TokenNamelist:
+                               // | T_LIST '(' assignment_list ')' '=' expr
+                               getNextToken();
+                               if (token == TokenNameLPAREN) {
+                                       getNextToken();
+                                       assignment_list();
+                                       if (token != TokenNameRPAREN) {
+                                               throwSyntaxError("')' expected after 'list' keyword.");
+                                       }
+                                       getNextToken();
+                                       if (token != TokenNameEQUAL) {
+                                               throwSyntaxError("'=' expected after 'list' keyword.");
+                                       }
+                                       getNextToken();
+                                       expr();
+                               } else {
+                                       throwSyntaxError("'(' expected after 'list' keyword.");
+                               }
+                               break;
+                       case TokenNamenew:
+                               // | T_NEW class_name_reference ctor_arguments
+                               getNextToken();
+                               Expression typeRef = class_name_reference();
+                               ctor_arguments();
+                               if (typeRef != null) {
+                                       expression = typeRef;
+                               }
+                               break;
+                       // | T_INC rw_variable
+                       // | T_DEC rw_variable
+                       case TokenNamePLUS_PLUS:
+                       case TokenNameMINUS_MINUS:
+                               getNextToken();
+                               rw_variable();
+                               break;
+                       // | variable '=' expr
+                       // | variable '=' '&' variable
+                       // | variable '=' '&' T_NEW class_name_reference ctor_arguments
+                       // | variable T_PLUS_EQUAL expr
+                       // | variable T_MINUS_EQUAL expr
+                       // | variable T_MUL_EQUAL expr
+                       // | variable T_DIV_EQUAL expr
+                       // | variable T_CONCAT_EQUAL expr
+                       // | variable T_MOD_EQUAL expr
+                       // | variable T_AND_EQUAL expr
+                       // | variable T_OR_EQUAL expr
+                       // | variable T_XOR_EQUAL expr
+                       // | variable T_SL_EQUAL expr
+                       // | variable T_SR_EQUAL expr
+                       // | rw_variable T_INC
+                       // | rw_variable T_DEC
+                       case TokenNameIdentifier:
+                               char[] ident = scanner.getCurrentTokenSource();
+                               Expression lhsIdentifier = identifier(true, true);
+                               if (lhsIdentifier != null) {
+                                       expression = lhsIdentifier;
+                               }
+                               if (token == TokenNameEQUAL || token == TokenNamePLUS_EQUAL
+                                               || token == TokenNameMINUS_EQUAL || token == TokenNameMULTIPLY_EQUAL || token == TokenNameDIVIDE_EQUAL
+                                               || token == TokenNameDOT_EQUAL || token == TokenNameREMAINDER_EQUAL || token == TokenNameAND_EQUAL
+                                               || token == TokenNameOR_EQUAL || token == TokenNameXOR_EQUAL || token == TokenNameRIGHT_SHIFT_EQUAL
+                                               || token == TokenNameLEFT_SHIFT_EQUAL) {
+                                       String error = "Assignment operator '"+scanner.toStringAction(token)+"' not allowed after identifier '"+new String(ident)+"' (use 'define(...)' to define constants).";
+                                       throwSyntaxError(error);
+                               }
+                               break;
+                       case TokenNameVariable:
+                       case TokenNameDOLLAR:
+                               boolean rememberedVar = false;
+                               Expression lhs = variable(true, true);
+                               if (lhs != null && lhs instanceof FieldReference && token != TokenNameEQUAL && token != TokenNamePLUS_EQUAL
+                                               && token != TokenNameMINUS_EQUAL && token != TokenNameMULTIPLY_EQUAL && token != TokenNameDIVIDE_EQUAL
+                                               && token != TokenNameDOT_EQUAL && token != TokenNameREMAINDER_EQUAL && token != TokenNameAND_EQUAL
+                                               && token != TokenNameOR_EQUAL && token != TokenNameXOR_EQUAL && token != TokenNameRIGHT_SHIFT_EQUAL
+                                               && token != TokenNameLEFT_SHIFT_EQUAL) {
+                                       FieldReference ref = (FieldReference) lhs;
+                                       if (!containsVariableSet(ref.token)) {
+                                               problemReporter.uninitializedLocalVariable(new String(ref.token), ref.sourceStart(), ref.sourceEnd(), referenceContext,
+                                                               compilationUnit.compilationResult);
+                                               addVariableSet(ref.token);
+                                       }
+                               }
+
+                               switch (token) {
+                               case TokenNameEQUAL:
+                                       if (lhs != null && lhs instanceof FieldReference) {
+                                               addVariableSet(((FieldReference) lhs).token);
+                                       }
+                                       getNextToken();
+                                       if (token == TokenNameAND) {
+                                               getNextToken();
+                                               if (token == TokenNamenew) {
+                                                       // | variable '=' '&' T_NEW class_name_reference
+                                                       // ctor_arguments
+                                                       getNextToken();
+                                                       SingleTypeReference classRef = class_name_reference();
+                                                       ctor_arguments();
+                                                       if (classRef != null) {
+                                                               if (lhs != null && lhs instanceof FieldReference) {
+                                                                       // example:
+                                                                       // $var = & new Object();
+                                                                       if (fMethodVariables != null) {
+                                                                               VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
+                                                                               lhsInfo.reference = classRef;
+                                                                               lhsInfo.typeIdentifier = classRef.token;
+                                                                               fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
+                                                                               rememberedVar = true;
+                                                                       }
+                                                               }
+                                                       }
+                                               } else {
+                                                       Expression rhs = variable(false, false);
+                                                       if (rhs != null && rhs instanceof FieldReference && lhs != null && lhs instanceof FieldReference) {
+                                                               // example:
+                                                               // $var = &$ref;
+                                                               if (fMethodVariables != null) {
+                                                                       VariableInfo rhsInfo = (VariableInfo) fMethodVariables.get(((FieldReference) rhs).token);
+                                                                       if (rhsInfo != null && rhsInfo.reference != null) {
+                                                                               VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
+                                                                               lhsInfo.reference = rhsInfo.reference;
+                                                                               lhsInfo.typeIdentifier = rhsInfo.typeIdentifier;
+                                                                               fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
+                                                                               rememberedVar = true;
+                                                                       }
+                                                               }
+                                                       }
+                                               }
+                                       } else {
+                                               Expression rhs = expr();
+                                               if (lhs != null && lhs instanceof FieldReference) {
+                                                       if (rhs != null && rhs instanceof FieldReference) {
+                                                               // example:
+                                                               // $var = $ref;
+                                                               if (fMethodVariables != null) {
+                                                                       VariableInfo rhsInfo = (VariableInfo) fMethodVariables.get(((FieldReference) rhs).token);
+                                                                       if (rhsInfo != null && rhsInfo.reference != null) {
+                                                                               VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
+                                                                               lhsInfo.reference = rhsInfo.reference;
+                                                                               lhsInfo.typeIdentifier = rhsInfo.typeIdentifier;
+                                                                               fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
+                                                                               rememberedVar = true;
+                                                                       }
+                                                               }
+                                                       } else if (rhs != null && rhs instanceof SingleTypeReference) {
+                                                               // example:
+                                                               // $var = new Object();
+                                                               if (fMethodVariables != null) {
+                                                                       VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
+                                                                       lhsInfo.reference = (SingleTypeReference) rhs;
+                                                                       lhsInfo.typeIdentifier = ((SingleTypeReference) rhs).token;
+                                                                       fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
+                                                                       rememberedVar = true;
+                                                               }
+                                                       }
+                                               }
+                                       }
+                                       if (rememberedVar == false && lhs != null && lhs instanceof FieldReference) {
+                                               if (fMethodVariables != null) {
+                                                       VariableInfo lhsInfo = new VariableInfo(((FieldReference) lhs).sourceStart());
+                                                       fMethodVariables.put(new String(((FieldReference) lhs).token), lhsInfo);
+                                               }
+                                       }
+                                       break;
+                               case TokenNamePLUS_EQUAL:
+                               case TokenNameMINUS_EQUAL:
+                               case TokenNameMULTIPLY_EQUAL:
+                               case TokenNameDIVIDE_EQUAL:
+                               case TokenNameDOT_EQUAL:
+                               case TokenNameREMAINDER_EQUAL:
+                               case TokenNameAND_EQUAL:
+                               case TokenNameOR_EQUAL:
+                               case TokenNameXOR_EQUAL:
+                               case TokenNameRIGHT_SHIFT_EQUAL:
+                               case TokenNameLEFT_SHIFT_EQUAL:
+                                       if (lhs != null && lhs instanceof FieldReference) {
+                                               addVariableSet(((FieldReference) lhs).token);
+                                       }
+                                       getNextToken();
+                                       expr();
+                                       break;
+                               case TokenNamePLUS_PLUS:
+                               case TokenNameMINUS_MINUS:
+                                       getNextToken();
+                                       break;
+                               default:
+                                       if (!only_variable) {
+                                               throwSyntaxError("Variable expression not allowed (found token '" + scanner.toStringAction(token) + "').");
+                                       }
+                                       if (lhs != null) {
+                                               expression = lhs;
+                                       }
+                               }
+                               break;
+                       default:
+                               if (token != TokenNameINLINE_HTML) {
+                                       if (token > TokenNameKEYWORD) {
+                                               getNextToken();
+                                               break;
+                                       } else {
+                                               // System.out.println(scanner.getCurrentTokenStartPosition());
+                                               // System.out.println(scanner.getCurrentTokenEndPosition());
+
+                                               throwSyntaxError("Error in expression (found token '" + scanner.toStringAction(token) + "').");
+                                       }
+                               }
+                               return expression;
+                       }
+                       if (Scanner.TRACE) {
+                               System.out.println("TRACE: expr_without_variable() PART 2");
+                       }
+                       // | expr T_BOOLEAN_OR expr
+                       // | expr T_BOOLEAN_AND expr
+                       // | expr T_LOGICAL_OR expr
+                       // | expr T_LOGICAL_AND expr
+                       // | expr T_LOGICAL_XOR expr
+                       // | expr '|' expr
+                       // | expr '&' expr
+                       // | expr '^' expr
+                       // | expr '.' expr
+                       // | expr '+' expr
+                       // | expr '-' expr
+                       // | expr '*' expr
+                       // | expr '/' expr
+                       // | expr '%' expr
+                       // | expr T_SL expr
+                       // | expr T_SR expr
+                       // | expr T_IS_IDENTICAL expr
+                       // | expr T_IS_NOT_IDENTICAL expr
+                       // | expr T_IS_EQUAL expr
+                       // | expr T_IS_NOT_EQUAL expr
+                       // | expr '<' expr
+                       // | expr T_IS_SMALLER_OR_EQUAL expr
+                       // | expr '>' expr
+                       // | expr T_IS_GREATER_OR_EQUAL expr
+                       while (true) {
+                               switch (token) {
+                               case TokenNameOR_OR:
+                                       getNextToken();
+                                       expression = new OR_OR_Expression(expression, expr(), token);
+                                       break;
+                               case TokenNameAND_AND:
+                                       getNextToken();
+                                       expression = new AND_AND_Expression(expression, expr(), token);
+                                       break;
+                               case TokenNameEQUAL_EQUAL:
+                                       getNextToken();
+                                       expression = new EqualExpression(expression, expr(), token);
+                                       break;
+                               case TokenNameand:
+                               case TokenNameor:
+                               case TokenNamexor:
+                               case TokenNameAND:
+                               case TokenNameOR:
+                               case TokenNameXOR:
+                               case TokenNameDOT:
+                               case TokenNamePLUS:
+                               case TokenNameMINUS:
+                               case TokenNameMULTIPLY:
+                               case TokenNameDIVIDE:
+                               case TokenNameREMAINDER:
+                               case TokenNameLEFT_SHIFT:
+                               case TokenNameRIGHT_SHIFT:
+                               case TokenNameEQUAL_EQUAL_EQUAL:
+                               case TokenNameNOT_EQUAL_EQUAL:
+                               case TokenNameNOT_EQUAL:
+                               case TokenNameLESS:
+                               case TokenNameLESS_EQUAL:
+                               case TokenNameGREATER:
+                               case TokenNameGREATER_EQUAL:
+                                       getNextToken();
+                                       expression = new BinaryExpression(expression, expr(), token);
+                                       break;
+                               // | expr T_INSTANCEOF class_name_reference
+                               // | expr '?' expr ':' expr
+                               case TokenNameinstanceof:
+                                       getNextToken();
+                                       TypeReference classRef = class_name_reference();
+                                       if (classRef != null) {
+                                               expression = new InstanceOfExpression(expression, classRef, OperatorIds.INSTANCEOF);
+                                               expression.sourceStart = exprSourceStart;
+                                               expression.sourceEnd = scanner.getCurrentTokenEndPosition();
+                                       }
+                                       break;
+                               case TokenNameQUESTION:
+                                       getNextToken();
+                                       Expression valueIfTrue = expr();
+                                       if (token != TokenNameCOLON) {
+                                               throwSyntaxError("':' expected in conditional expression.");
+                                       }
+                                       getNextToken();
+                                       Expression valueIfFalse = expr();
+
+                                       expression = new ConditionalExpression(expression, valueIfTrue, valueIfFalse);
+                                       break;
+                               default:
+                                       return expression;
+                               }
+                       }
+               } catch (SyntaxError e) {
+                       // try to find next token after expression with errors:
+                       if (token == TokenNameSEMICOLON) {
+                               getNextToken();
+                               return expression;
+                       }
+                       if (token == TokenNameRBRACE || token == TokenNameRPAREN || token == TokenNameRBRACKET) {
+                               getNextToken();
+                               return expression;
+                       }
+                       throw e;
+               }
+       }
+
+       private SingleTypeReference class_name_reference() {
+               // class_name_reference:
+               // T_STRING
+               // | dynamic_class_name_reference
+               SingleTypeReference ref = null;
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: class_name_reference()");
+               }
+               if (token == TokenNameIdentifier) {
+                       ref = new SingleTypeReference(scanner.getCurrentIdentifierSource(), scanner.getCurrentTokenStartPosition());
+                       getNextToken();
+               } else {
+                       ref = null;
+                       dynamic_class_name_reference();
+               }
+               return ref;
+       }
+
+       private void dynamic_class_name_reference() {
+               // dynamic_class_name_reference:
+               // base_variable T_OBJECT_OPERATOR object_property
+               // dynamic_class_name_variable_properties
+               // | base_variable
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: dynamic_class_name_reference()");
+               }
+               base_variable();
+               if (token == TokenNameMINUS_GREATER) {
+                       getNextToken();
+                       object_property();
+                       dynamic_class_name_variable_properties();
+               }
+       }
+
+       private void dynamic_class_name_variable_properties() {
+               // dynamic_class_name_variable_properties:
+               // dynamic_class_name_variable_properties
+               // dynamic_class_name_variable_property
+               // | /* empty */
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: dynamic_class_name_variable_properties()");
+               }
+               while (token == TokenNameMINUS_GREATER) {
+                       dynamic_class_name_variable_property();
+               }
+       }
+
+       private void dynamic_class_name_variable_property() {
+               // dynamic_class_name_variable_property:
+               // T_OBJECT_OPERATOR object_property
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: dynamic_class_name_variable_property()");
+               }
+               if (token == TokenNameMINUS_GREATER) {
+                       getNextToken();
+                       object_property();
+               }
+       }
+
+       private void ctor_arguments() {
+               // ctor_arguments:
+               // /* empty */
+               // | '(' function_call_parameter_list ')'
+               if (token == TokenNameLPAREN) {
+                       getNextToken();
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                               return;
+                       }
+                       non_empty_function_call_parameter_list();
+                       if (token != TokenNameRPAREN) {
+                               throwSyntaxError("')' expected in ctor_arguments.");
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void assignment_list() {
+               // assignment_list:
+               // assignment_list ',' assignment_list_element
+               // | assignment_list_element
+               while (true) {
+                       assignment_list_element();
+                       if (token != TokenNameCOMMA) {
+                               break;
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void assignment_list_element() {
+               // assignment_list_element:
+               // variable
+               // | T_LIST '(' assignment_list ')'
+               // | /* empty */
+               if (token == TokenNameVariable) {
+                       variable(true, false);
+               } else if (token == TokenNameDOLLAR) {
+                       variable(false, false);
+               } else {
+                       if (token == TokenNamelist) {
+                               getNextToken();
+                               if (token == TokenNameLPAREN) {
+                                       getNextToken();
+                                       assignment_list();
+                                       if (token != TokenNameRPAREN) {
+                                               throwSyntaxError("')' expected after 'list' keyword.");
+                                       }
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("'(' expected after 'list' keyword.");
+                               }
+                       }
+               }
+       }
+
+       private void array_pair_list() {
+               // array_pair_list:
+               // /* empty */
+               // | non_empty_array_pair_list possible_comma
+               non_empty_array_pair_list();
+               if (token == TokenNameCOMMA) {
+                       getNextToken();
+               }
+       }
+
+       private void non_empty_array_pair_list() {
+               // non_empty_array_pair_list:
+               // non_empty_array_pair_list ',' expr T_DOUBLE_ARROW expr
+               // | non_empty_array_pair_list ',' expr
+               // | expr T_DOUBLE_ARROW expr
+               // | expr
+               // | non_empty_array_pair_list ',' expr T_DOUBLE_ARROW '&' w_variable
+               // | non_empty_array_pair_list ',' '&' w_variable
+               // | expr T_DOUBLE_ARROW '&' w_variable
+               // | '&' w_variable
+               while (true) {
+                       if (token == TokenNameAND) {
+                               getNextToken();
+                               variable(true, false);
+                       } else {
+                               expr();
+                               if (token == TokenNameAND) {
+                                       getNextToken();
+                                       variable(true, false);
+                               } else if (token == TokenNameEQUAL_GREATER) {
+                                       getNextToken();
+                                       if (token == TokenNameAND) {
+                                               getNextToken();
+                                               variable(true, false);
+                                       } else {
+                                               expr();
+                                       }
+                               }
+                       }
+                       if (token != TokenNameCOMMA) {
+                               return;
+                       }
+                       getNextToken();
+                       if (token == TokenNameRPAREN) {
+                               return;
+                       }
+               }
+       }
+
+       // private void variableList() {
+       // do {
+       // variable();
+       // if (token == TokenNameCOMMA) {
+       // getNextToken();
+       // } else {
+       // break;
+       // }
+       // } while (true);
+       // }
+       private Expression variable_without_objects(boolean lefthandside, boolean ignoreVar) {
+               // variable_without_objects:
+               // reference_variable
+               // | simple_indirect_reference reference_variable
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: variable_without_objects()");
+               }
+               while (token == TokenNameDOLLAR) {
+                       getNextToken();
+               }
+               return reference_variable(lefthandside, ignoreVar);
+       }
+
+       private Expression function_call(boolean lefthandside, boolean ignoreVar) {
+               // function_call:
+               // T_STRING '(' function_call_parameter_list ')'
+               // | class_constant '(' function_call_parameter_list ')'
+               // | static_member '(' function_call_parameter_list ')'
+               // | variable_without_objects '(' function_call_parameter_list ')'
+               char[] defineName = null;
+               char[] ident = null;
+               int startPos = 0;
+               int endPos = 0;
+               Expression ref = null;
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: function_call()");
+               }
+               if (token == TokenNameIdentifier) {
+                       ident = scanner.getCurrentIdentifierSource();
+                       defineName = ident;
+                       startPos = scanner.getCurrentTokenStartPosition();
+                       endPos = scanner.getCurrentTokenEndPosition();
+                       getNextToken();
+                       switch (token) {
+                       case TokenNamePAAMAYIM_NEKUDOTAYIM:
+                               // static member:
+                               defineName = null;
+                               getNextToken();
+                               if (token == TokenNameIdentifier) {
+                                       // class _constant
+                                       getNextToken();
+                               } else {
+                                       // static member:
+                                       variable_without_objects(true, false);
+                               }
+                               break;
+                       }
+               } else {
+                       ref = variable_without_objects(lefthandside, ignoreVar);
+               }
+               if (token != TokenNameLPAREN) {
+                       if (defineName != null) {
+                               // does this identifier contain only uppercase characters?
+                               if (defineName.length == 3) {
+                                       if (defineName[0] == 'd' && defineName[1] == 'i' && defineName[2] == 'e') {
+                                               defineName = null;
+                                       }
+                               } else if (defineName.length == 4) {
+                                       if (defineName[0] == 't' && defineName[1] == 'r' && defineName[2] == 'u' && defineName[3] == 'e') {
+                                               defineName = null;
+                                       } else if (defineName[0] == 'n' && defineName[1] == 'u' && defineName[2] == 'l' && defineName[3] == 'l') {
+                                               defineName = null;
+                                       }
+                               } else if (defineName.length == 5) {
+                                       if (defineName[0] == 'f' && defineName[1] == 'a' && defineName[2] == 'l' && defineName[3] == 's' && defineName[4] == 'e') {
+                                               defineName = null;
+                                       }
+                               }
+                               if (defineName != null) {
+                                       for (int i = 0; i < defineName.length; i++) {
+                                               if (Character.isLowerCase(defineName[i])) {
+                                                       problemReporter.phpUppercaseIdentifierWarning(startPos, endPos, referenceContext, compilationUnit.compilationResult);
+                                                       break;
+                                               }
+                                       }
+                               }
+                       }
+                       // TODO is this ok ?
+                       return ref;
+                       // throwSyntaxError("'(' expected in function call.");
+               }
+               getNextToken();
+               if (token == TokenNameRPAREN) {
+                       getNextToken();
+                       return ref;
+               }
+               non_empty_function_call_parameter_list();
+               if (token != TokenNameRPAREN) {
+                       String functionName;
+                       if (ident == null) {
+                               functionName = new String(" ");
+                       } else {
+                               functionName = new String(ident);
+                       }
+                       throwSyntaxError("')' expected in function call (" + functionName + ").");
+               }
+               getNextToken();
+               return ref;
+       }
+
+       // private void function_call_parameter_list() {
+       // function_call_parameter_list:
+       // non_empty_function_call_parameter_list { $$ = $1; }
+       // | /* empty */
+       // }
+       private void non_empty_function_call_parameter_list() {
+               // non_empty_function_call_parameter_list:
+               // expr_without_variable
+               // | variable
+               // | '&' w_variable
+               // | non_empty_function_call_parameter_list ',' expr_without_variable
+               // | non_empty_function_call_parameter_list ',' variable
+               // | non_empty_function_call_parameter_list ',' '&' w_variable
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: non_empty_function_call_parameter_list()");
+               }
+               while (true) {
+                       if (token == TokenNameAND) {
+                               getNextToken();
+                               w_variable(true);
+                       } else {
+                               // if (token == TokenNameIdentifier || token ==
+                               // TokenNameVariable
+                               // || token == TokenNameDOLLAR) {
+                               // variable();
+                               // } else {
+                               expr_without_variable(true);
+                               // }
+                       }
+                       if (token != TokenNameCOMMA) {
+                               break;
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void fully_qualified_class_name() {
+               if (token == TokenNameIdentifier) {
+                       getNextToken();
+               } else {
+                       throwSyntaxError("Class name expected.");
+               }
+       }
+
+       private void static_member() {
+               // static_member:
+               // fully_qualified_class_name T_PAAMAYIM_NEKUDOTAYIM
+               // variable_without_objects
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: static_member()");
+               }
+               fully_qualified_class_name();
+               if (token != TokenNamePAAMAYIM_NEKUDOTAYIM) {
+                       throwSyntaxError("'::' expected after class name (static_member).");
+               }
+               getNextToken();
+               variable_without_objects(false, false);
+       }
+
+       private Expression base_variable_with_function_calls(boolean lefthandside, boolean ignoreVar) {
+               // base_variable_with_function_calls:
+               // base_variable
+               // | function_call
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: base_variable_with_function_calls()");
+               }
+               return function_call(lefthandside, ignoreVar);
+       }
+
+       private Expression base_variable() {
+               // base_variable:
+               // reference_variable
+               // | simple_indirect_reference reference_variable
+               // | static_member
+               Expression ref = null;
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: base_variable()");
+               }
+               if (token == TokenNameIdentifier) {
+                       static_member();
+               } else {
+                       while (token == TokenNameDOLLAR) {
+                               getNextToken();
+                       }
+                       reference_variable(false, false);
+               }
+               return ref;
+       }
+
+       // private void simple_indirect_reference() {
+       // // simple_indirect_reference:
+       // // '$'
+       // //| simple_indirect_reference '$'
+       // }
+       private Expression reference_variable(boolean lefthandside, boolean ignoreVar) {
+               // reference_variable:
+               // reference_variable '[' dim_offset ']'
+               // | reference_variable '{' expr '}'
+               // | compound_variable
+               Expression ref = null;
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: reference_variable()");
+               }
+               ref = compound_variable(lefthandside, ignoreVar);
+               while (true) {
+                       if (token == TokenNameLBRACE) {
+                               ref = null;
+                               getNextToken();
+                               expr();
+                               if (token != TokenNameRBRACE) {
+                                       throwSyntaxError("'}' expected in reference variable.");
+                               }
+                               getNextToken();
+                       } else if (token == TokenNameLBRACKET) {
+                               if (ref != null && ref instanceof FieldReference) {
+                                       FieldReference fref = (FieldReference) ref;
+                                       addVariableSet(fref.token);
+                               }
+                               ref = null;
+                               getNextToken();
+                               if (token != TokenNameRBRACKET) {
+                                       expr();
+                                       // dim_offset();
+                                       if (token != TokenNameRBRACKET) {
+                                               throwSyntaxError("']' expected in reference variable.");
+                                       }
+                               }
+                               getNextToken();
+                       } else {
+                               break;
+                       }
+               }
+               return ref;
+       }
+
+       private Expression compound_variable(boolean lefthandside, boolean ignoreVar) {
+               // compound_variable:
+               // T_VARIABLE
+               // | '$' '{' expr '}'
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: compound_variable()");
+               }
+               if (token == TokenNameVariable) {
+                       if (!lefthandside) {
+                               if (!containsVariableSet()) {
+                                       // reportSyntaxError("The local variable " + new
+                                       // String(scanner.getCurrentIdentifierSource())
+                                       // + " may not have been initialized");
+                                       problemReporter.uninitializedLocalVariable(new String(scanner.getCurrentIdentifierSource()), scanner
+                                                       .getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition(), referenceContext,
+                                                       compilationUnit.compilationResult);
+                               }
+                       } else {
+                               if (!ignoreVar) {
+                                       addVariableSet();
+                               }
+                       }
+                       FieldReference ref = new FieldReference(scanner.getCurrentIdentifierSource(), scanner.getCurrentTokenStartPosition());
+                       getNextToken();
+                       return ref;
+               } else {
+                       // because of simple_indirect_reference
+                       while (token == TokenNameDOLLAR) {
+                               getNextToken();
+                       }
+                       if (token != TokenNameLBRACE) {
+                               reportSyntaxError("'{' expected after compound variable token '$'.");
+                               return null;
+                       }
+                       getNextToken();
+                       expr();
+                       if (token != TokenNameRBRACE) {
+                               throwSyntaxError("'}' expected after compound variable token '$'.");
+                       }
+                       getNextToken();
+               }
+               return null;
+       } // private void dim_offset() { // // dim_offset: // // /* empty */
+
+       // // | expr
+       // expr();
+       // }
+       private void object_property() {
+               // object_property:
+               // object_dim_list
+               // | variable_without_objects
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: object_property()");
+               }
+               if (token == TokenNameVariable || token == TokenNameDOLLAR) {
+                       variable_without_objects(false, false);
+               } else {
+                       object_dim_list();
+               }
+       }
+
+       private void object_dim_list() {
+               // object_dim_list:
+               // object_dim_list '[' dim_offset ']'
+               // | object_dim_list '{' expr '}'
+               // | variable_name
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: object_dim_list()");
+               }
+               variable_name();
+               while (true) {
+                       if (token == TokenNameLBRACE) {
+                               getNextToken();
+                               expr();
+                               if (token != TokenNameRBRACE) {
+                                       throwSyntaxError("'}' expected in object_dim_list.");
+                               }
+                               getNextToken();
+                       } else if (token == TokenNameLBRACKET) {
+                               getNextToken();
+                               if (token == TokenNameRBRACKET) {
+                                       getNextToken();
+                                       continue;
+                               }
+                               expr();
+                               if (token != TokenNameRBRACKET) {
+                                       throwSyntaxError("']' expected in object_dim_list.");
+                               }
+                               getNextToken();
+                       } else {
+                               break;
+                       }
+               }
+       }
+
+       private void variable_name() {
+               // variable_name:
+               // T_STRING
+               // | '{' expr '}'
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: variable_name()");
+               }
+               if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
+                       if (token > TokenNameKEYWORD) {
+                               // TODO show a warning "Keyword used as variable" ?
+                       }
+                       getNextToken();
+               } else {
+                       if (token != TokenNameLBRACE) {
+                               throwSyntaxError("'{' expected in variable name.");
+                       }
+                       getNextToken();
+                       expr();
+                       if (token != TokenNameRBRACE) {
+                               throwSyntaxError("'}' expected in variable name.");
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void r_variable() {
+               variable(false, false);
+       }
+
+       private void w_variable(boolean lefthandside) {
+               variable(lefthandside, false);
+       }
+
+       private void rw_variable() {
+               variable(false, false);
+       }
+
+       private Expression variable(boolean lefthandside, boolean ignoreVar) {
+               // variable:
+               // base_variable_with_function_calls T_OBJECT_OPERATOR
+               // object_property method_or_not variable_properties
+               // | base_variable_with_function_calls
+               Expression ref = base_variable_with_function_calls(lefthandside, ignoreVar);
+               if (token == TokenNameMINUS_GREATER) {
+                       ref = null;
+                       getNextToken();
+                       object_property();
+                       method_or_not();
+                       variable_properties();
+               }
+               return ref;
+       }
+
+       private void variable_properties() {
+               // variable_properties:
+               // variable_properties variable_property
+               // | /* empty */
+               while (token == TokenNameMINUS_GREATER) {
+                       variable_property();
+               }
+       }
+
+       private void variable_property() {
+               // variable_property:
+               // T_OBJECT_OPERATOR object_property method_or_not
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: variable_property()");
+               }
+               if (token == TokenNameMINUS_GREATER) {
+                       getNextToken();
+                       object_property();
+                       method_or_not();
+               } else {
+                       throwSyntaxError("'->' expected in variable_property.");
+               }
+       }
+
+       private Expression identifier(boolean lefthandside, boolean ignoreVar) {
+               // variable:
+               // base_variable_with_function_calls T_OBJECT_OPERATOR
+               // object_property method_or_not variable_properties
+               // | base_variable_with_function_calls
+               Expression ref = base_variable_with_function_calls(lefthandside, ignoreVar);
+               if (token == TokenNameMINUS_GREATER) {
+                       ref = null;
+                       getNextToken();
+                       object_property();
+                       method_or_not();
+                       variable_properties();
+               }
+               return ref;
+       }
+
+       private void method_or_not() {
+               // method_or_not:
+               // '(' function_call_parameter_list ')'
+               // | /* empty */
+               if (Scanner.TRACE) {
+                       System.out.println("TRACE: method_or_not()");
+               }
+               if (token == TokenNameLPAREN) {
+                       getNextToken();
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                               return;
+                       }
+                       non_empty_function_call_parameter_list();
+                       if (token != TokenNameRPAREN) {
+                               throwSyntaxError("')' expected in method_or_not.");
+                       }
+                       getNextToken();
+               }
+       }
+
+       private void exit_expr() {
+               // /* empty */
+               // | '(' ')'
+               // | '(' expr ')'
+               if (token != TokenNameLPAREN) {
+                       return;
+               }
+               getNextToken();
+               if (token == TokenNameRPAREN) {
+                       getNextToken();
+                       return;
+               }
+               expr();
+               if (token != TokenNameRPAREN) {
+                       throwSyntaxError("')' expected after keyword 'exit'");
+               }
+               getNextToken();
+       }
+
+       // private void encaps_list() {
+       // // encaps_list encaps_var
+       // // | encaps_list T_STRING
+       // // | encaps_list T_NUM_STRING
+       // // | encaps_list T_ENCAPSED_AND_WHITESPACE
+       // // | encaps_list T_CHARACTER
+       // // | encaps_list T_BAD_CHARACTER
+       // // | encaps_list '['
+       // // | encaps_list ']'
+       // // | encaps_list '{'
+       // // | encaps_list '}'
+       // // | encaps_list T_OBJECT_OPERATOR
+       // // | /* empty */
+       // while (true) {
+       // switch (token) {
+       // case TokenNameSTRING:
+       // getNextToken();
+       // break;
+       // case TokenNameLBRACE:
+       // // scanner.encapsedStringStack.pop();
+       // getNextToken();
+       // break;
+       // case TokenNameRBRACE:
+       // // scanner.encapsedStringStack.pop();
+       // getNextToken();
+       // break;
+       // case TokenNameLBRACKET:
+       // // scanner.encapsedStringStack.pop();
+       // getNextToken();
+       // break;
+       // case TokenNameRBRACKET:
+       // // scanner.encapsedStringStack.pop();
+       // getNextToken();
+       // break;
+       // case TokenNameMINUS_GREATER:
+       // // scanner.encapsedStringStack.pop();
+       // getNextToken();
+       // break;
+       // case TokenNameVariable:
+       // case TokenNameDOLLAR_LBRACE:
+       // case TokenNameLBRACE_DOLLAR:
+       // encaps_var();
+       // break;
+       // default:
+       // char encapsedChar = ((Character)
+       // scanner.encapsedStringStack.peek()).charValue();
+       // if (encapsedChar == '$') {
+       // scanner.encapsedStringStack.pop();
+       // encapsedChar = ((Character)
+       // scanner.encapsedStringStack.peek()).charValue();
+       // switch (encapsedChar) {
+       // case '`':
+       // if (token == TokenNameEncapsedString0) {
+       // return;
+       // }
+       // token = TokenNameSTRING;
+       // continue;
+       // case '\'':
+       // if (token == TokenNameEncapsedString1) {
+       // return;
+       // }
+       // token = TokenNameSTRING;
+       // continue;
+       // case '"':
+       // if (token == TokenNameEncapsedString2) {
+       // return;
+       // }
+       // token = TokenNameSTRING;
+       // continue;
+       // }
+       // }
+       // return;
+       // }
+       // }
+       // }
+
+       // private void encaps_var() {
+       // // T_VARIABLE
+       // // | T_VARIABLE '[' encaps_var_offset ']'
+       // // | T_VARIABLE T_OBJECT_OPERATOR T_STRING
+       // // | T_DOLLAR_OPEN_CURLY_BRACES expr '}'
+       // // | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}'
+       // // | T_CURLY_OPEN variable '}'
+       // switch (token) {
+       // case TokenNameVariable:
+       // getNextToken();
+       // if (token == TokenNameLBRACKET) {
+       // getNextToken();
+       // expr(); //encaps_var_offset();
+       // if (token != TokenNameRBRACKET) {
+       // throwSyntaxError("']' expected after variable.");
+       // }
+       // // scanner.encapsedStringStack.pop();
+       // getNextToken();
+       // // }
+       // } else if (token == TokenNameMINUS_GREATER) {
+       // getNextToken();
+       // if (token != TokenNameIdentifier) {
+       // throwSyntaxError("Identifier expected after '->'.");
+       // }
+       // // scanner.encapsedStringStack.pop();
+       // getNextToken();
+       // }
+       // // else {
+       // // // scanner.encapsedStringStack.pop();
+       // // int tempToken = TokenNameSTRING;
+       // // if (!scanner.encapsedStringStack.isEmpty()
+       // // && (token == TokenNameEncapsedString0
+       // // || token == TokenNameEncapsedString1
+       // // || token == TokenNameEncapsedString2 || token ==
+       // // TokenNameERROR)) {
+       // // char encapsedChar = ((Character)
+       // // scanner.encapsedStringStack.peek())
+       // // .charValue();
+       // // switch (token) {
+       // // case TokenNameEncapsedString0 :
+       // // if (encapsedChar == '`') {
+       // // tempToken = TokenNameEncapsedString0;
+       // // }
+       // // break;
+       // // case TokenNameEncapsedString1 :
+       // // if (encapsedChar == '\'') {
+       // // tempToken = TokenNameEncapsedString1;
+       // // }
+       // // break;
+       // // case TokenNameEncapsedString2 :
+       // // if (encapsedChar == '"') {
+       // // tempToken = TokenNameEncapsedString2;
+       // // }
+       // // break;
+       // // case TokenNameERROR :
+       // // if (scanner.source[scanner.currentPosition - 1] == '\\') {
+       // // scanner.currentPosition--;
+       // // getNextToken();
+       // // }
+       // // break;
+       // // }
+       // // }
+       // // token = tempToken;
+       // // }
+       // break;
+       // case TokenNameDOLLAR_LBRACE:
+       // getNextToken();
+       // if (token == TokenNameDOLLAR_LBRACE) {
+       // encaps_var();
+       // } else if (token == TokenNameIdentifier) {
+       // getNextToken();
+       // if (token == TokenNameLBRACKET) {
+       // getNextToken();
+       // // if (token == TokenNameRBRACKET) {
+       // // getNextToken();
+       // // } else {
+       // expr();
+       // if (token != TokenNameRBRACKET) {
+       // throwSyntaxError("']' expected after '${'.");
+       // }
+       // getNextToken();
+       // // }
+       // }
+       // } else {
+       // expr();
+       // }
+       // if (token != TokenNameRBRACE) {
+       // throwSyntaxError("'}' expected.");
+       // }
+       // getNextToken();
+       // break;
+       // case TokenNameLBRACE_DOLLAR:
+       // getNextToken();
+       // if (token == TokenNameLBRACE_DOLLAR) {
+       // encaps_var();
+       // } else if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
+       // getNextToken();
+       // if (token == TokenNameLBRACKET) {
+       // getNextToken();
+       // // if (token == TokenNameRBRACKET) {
+       // // getNextToken();
+       // // } else {
+       // expr();
+       // if (token != TokenNameRBRACKET) {
+       // throwSyntaxError("']' expected.");
+       // }
+       // getNextToken();
+       // // }
+       // } else if (token == TokenNameMINUS_GREATER) {
+       // getNextToken();
+       // if (token != TokenNameIdentifier && token != TokenNameVariable) {
+       // throwSyntaxError("String or Variable token expected.");
+       // }
+       // getNextToken();
+       // if (token == TokenNameLBRACKET) {
+       // getNextToken();
+       // // if (token == TokenNameRBRACKET) {
+       // // getNextToken();
+       // // } else {
+       // expr();
+       // if (token != TokenNameRBRACKET) {
+       // throwSyntaxError("']' expected after '${'.");
+       // }
+       // getNextToken();
+       // // }
+       // }
+       // }
+       // // if (token != TokenNameRBRACE) {
+       // // throwSyntaxError("'}' expected after '{$'.");
+       // // }
+       // // // scanner.encapsedStringStack.pop();
+       // // getNextToken();
+       // } else {
+       // expr();
+       // if (token != TokenNameRBRACE) {
+       // throwSyntaxError("'}' expected.");
+       // }
+       // // scanner.encapsedStringStack.pop();
+       // getNextToken();
+       // }
+       // break;
+       // }
+       // }
+
+       // private void encaps_var_offset() {
+       // // T_STRING
+       // // | T_NUM_STRING
+       // // | T_VARIABLE
+       // switch (token) {
+       // case TokenNameSTRING:
+       // getNextToken();
+       // break;
+       // case TokenNameIntegerLiteral:
+       // getNextToken();
+       // break;
+       // case TokenNameVariable:
+       // getNextToken();
+       // break;
+       // case TokenNameIdentifier:
+       // getNextToken();
+       // break;
+       // default:
+       // throwSyntaxError("Variable or String token expected.");
+       // break;
+       // }
+       // }
+
+       private void internal_functions_in_yacc() {
+               // int start = 0;
+               switch (token) {
+               // case TokenNameisset:
+               // // T_ISSET '(' isset_variables ')'
+               // getNextToken();
+               // if (token != TokenNameLPAREN) {
+               // throwSyntaxError("'(' expected after keyword 'isset'");
+               // }
+               // getNextToken();
+               // isset_variables();
+               // if (token != TokenNameRPAREN) {
+               // throwSyntaxError("')' expected after keyword 'isset'");
+               // }
+               // getNextToken();
+               // break;
+               // case TokenNameempty:
+               // // T_EMPTY '(' variable ')'
+               // getNextToken();
+               // if (token != TokenNameLPAREN) {
+               // throwSyntaxError("'(' expected after keyword 'empty'");
+               // }
+               // getNextToken();
+               // variable(false);
+               // if (token != TokenNameRPAREN) {
+               // throwSyntaxError("')' expected after keyword 'empty'");
+               // }
+               // getNextToken();
+               // break;
+               case TokenNameinclude:
+                       // T_INCLUDE expr
+                       checkFileName(token);
+                       break;
+               case TokenNameinclude_once:
+                       // T_INCLUDE_ONCE expr
+                       checkFileName(token);
+                       break;
+               case TokenNameeval:
+                       // T_EVAL '(' expr ')'
+                       getNextToken();
+                       if (token != TokenNameLPAREN) {
+                               throwSyntaxError("'(' expected after keyword 'eval'");
+                       }
+                       getNextToken();
+                       expr();
+                       if (token != TokenNameRPAREN) {
+                               throwSyntaxError("')' expected after keyword 'eval'");
+                       }
+                       getNextToken();
+                       break;
+               case TokenNamerequire:
+                       // T_REQUIRE expr
+                       checkFileName(token);
+                       break;
+               case TokenNamerequire_once:
+                       // T_REQUIRE_ONCE expr
+                       checkFileName(token);
+                       break;
+               }
+       }
+
+       /**
+        * Parse and check the include file name
+        *
+        * @param includeToken
+        */
+       private void checkFileName(int includeToken) {
+               // <include-token> expr
+               int start = scanner.getCurrentTokenStartPosition();
+               boolean hasLPAREN = false;
+               getNextToken();
+               if (token == TokenNameLPAREN) {
+                       hasLPAREN = true;
+                       getNextToken();
+               }
+               Expression expression = expr();
+               if (hasLPAREN) {
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                       } else {
+                               throwSyntaxError("')' expected for keyword '" + scanner.toStringAction(includeToken) + "'");
+                       }
+               }
+               char[] currTokenSource = scanner.getCurrentTokenSource(start);
+               IFile file = null;
+               if (scanner.compilationUnit != null) {
+                       IResource resource = scanner.compilationUnit.getResource();
+                       if (resource != null && resource instanceof IFile) {
+                               file = (IFile) resource;
+                       }
+               }
+               char[][] tokens;
+               tokens = new char[1][];
+               tokens[0] = currTokenSource;
+
+               ImportReference impt = new ImportReference(tokens, currTokenSource, start, scanner.getCurrentTokenEndPosition(), false);
+               impt.declarationSourceEnd = impt.sourceEnd;
+               impt.declarationEnd = impt.declarationSourceEnd;
+               // endPosition is just before the ;
+               impt.declarationSourceStart = start;
+               includesList.add(impt);
+
+               if (expression instanceof StringLiteral) {
+                       StringLiteral literal = (StringLiteral) expression;
+                       char[] includeName = literal.source();
+                       if (includeName.length == 0) {
+                               reportSyntaxError("Empty filename after keyword '" + scanner.toStringAction(includeToken) + "'", literal.sourceStart,
+                                               literal.sourceStart + 1);
+                       }
+                       String includeNameString = new String(includeName);
+                       if (literal instanceof StringLiteralDQ) {
+                               if (includeNameString.indexOf('$') >= 0) {
+                                       // assuming that the filename contains a variable => no filename check
+                                       return;
+                               }
+                       }
+                       if (includeNameString.startsWith("http://")) {
+                               // assuming external include location
+                               return;
+                       }
+                       if (file != null) {
+                               // check the filename:
+                               // System.out.println(new String(compilationUnit.getFileName())+" - "+
+                               // expression.toStringExpression());
+                               IProject project = file.getProject();
+                               if (project != null) {
+                                       IPath path = PHPFileUtil.determineFilePath(includeNameString, file, project);
+
+                                       if (path == null) {
+                                               // SyntaxError: "File: << >> doesn't exist in project."
+                                               String[] args = { expression.toStringExpression(), project.getLocation().toString() };
+                                               problemReporter.phpIncludeNotExistWarning(args, literal.sourceStart, literal.sourceEnd, referenceContext,
+                                                               compilationUnit.compilationResult);
+                                       } else {
+                                               try {
+                                                       String filePath = path.toString();
+                                                       String ext = file.getRawLocation().getFileExtension();
+                                                       int fileExtensionLength = ext == null ? 0 : ext.length() + 1;
+
+                                                       impt.tokens = CharOperation.splitOn('/', filePath.toCharArray(), 0, filePath.length() - fileExtensionLength);
+                                                       impt.setFile(PHPFileUtil.createFile(path, project));
+                                               } catch (Exception e) {
+                                                       // the file is outside of the workspace
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+
+       private void isset_variables() {
+               // variable
+               // | isset_variables ','
+               if (token == TokenNameRPAREN) {
+                       throwSyntaxError("Variable expected after keyword 'isset'");
+               }
+               while (true) {
+                       variable(true, false);
+                       if (token == TokenNameCOMMA) {
+                               getNextToken();
+                       } else {
+                               break;
+                       }
+               }
+       }
+
+       private boolean common_scalar() {
+               // common_scalar:
+               // T_LNUMBER
+               // | T_DNUMBER
+               // | T_CONSTANT_ENCAPSED_STRING
+               // | T_LINE
+               // | T_FILE
+               // | T_CLASS_C
+               // | T_METHOD_C
+               // | T_FUNC_C
+               switch (token) {
+               case TokenNameIntegerLiteral:
+                       getNextToken();
+                       return true;
+               case TokenNameDoubleLiteral:
+                       getNextToken();
+                       return true;
+               case TokenNameStringDoubleQuote:
+                       getNextToken();
+                       return true;
+               case TokenNameStringSingleQuote:
+                       getNextToken();
+                       return true;
+               case TokenNameStringInterpolated:
+                       getNextToken();
+                       return true;
+               case TokenNameFILE:
+                       getNextToken();
+                       return true;
+               case TokenNameLINE:
+                       getNextToken();
+                       return true;
+               case TokenNameCLASS_C:
+                       getNextToken();
+                       return true;
+               case TokenNameMETHOD_C:
+                       getNextToken();
+                       return true;
+               case TokenNameFUNC_C:
+                       getNextToken();
+                       return true;
+               }
+               return false;
+       }
+
+       private void scalar() {
+               // scalar:
+               // T_STRING
+               // | T_STRING_VARNAME
+               // | class_constant
+               // | common_scalar
+               // | '"' encaps_list '"'
+               // | '\'' encaps_list '\''
+               // | T_START_HEREDOC encaps_list T_END_HEREDOC
+               throwSyntaxError("Not yet implemented (scalar).");
+       }
+
+       private void static_scalar() {
+               // static_scalar: /* compile-time evaluated scalars */
+               // common_scalar
+               // | T_STRING
+               // | '+' static_scalar
+               // | '-' static_scalar
+               // | T_ARRAY '(' static_array_pair_list ')'
+               // | static_class_constant
+               if (common_scalar()) {
+                       return;
+               }
+               switch (token) {
+               case TokenNameIdentifier:
+                       getNextToken();
+                       // static_class_constant:
+                       // T_STRING T_PAAMAYIM_NEKUDOTAYIM T_STRING
+                       if (token == TokenNamePAAMAYIM_NEKUDOTAYIM) {
+                               getNextToken();
+                               if (token == TokenNameIdentifier) {
+                                       getNextToken();
+                               } else {
+                                       throwSyntaxError("Identifier expected after '::' operator.");
+                               }
+                       }
+                       break;
+               case TokenNameEncapsedString0:
+                       try {
+                               scanner.currentCharacter = scanner.source[scanner.currentPosition++];
+                               while (scanner.currentCharacter != '`') {
+                                       if (scanner.currentCharacter == '\\') {
+                                               scanner.currentPosition++;
+                                       }
+                                       scanner.currentCharacter = scanner.source[scanner.currentPosition++];
+                               }
+                               getNextToken();
+                       } catch (IndexOutOfBoundsException e) {
+                               throwSyntaxError("'`' expected at end of static string.");
+                       }
+                       break;
+               // case TokenNameEncapsedString1:
+               // try {
+               // scanner.currentCharacter = scanner.source[scanner.currentPosition++];
+               // while (scanner.currentCharacter != '\'') {
+               // if (scanner.currentCharacter == '\\') {
+               // scanner.currentPosition++;
+               // }
+               // scanner.currentCharacter = scanner.source[scanner.currentPosition++];
+               // }
+               // getNextToken();
+               // } catch (IndexOutOfBoundsException e) {
+               // throwSyntaxError("'\'' expected at end of static string.");
+               // }
+               // break;
+               // case TokenNameEncapsedString2:
+               // try {
+               // scanner.currentCharacter = scanner.source[scanner.currentPosition++];
+               // while (scanner.currentCharacter != '"') {
+               // if (scanner.currentCharacter == '\\') {
+               // scanner.currentPosition++;
+               // }
+               // scanner.currentCharacter = scanner.source[scanner.currentPosition++];
+               // }
+               // getNextToken();
+               // } catch (IndexOutOfBoundsException e) {
+               // throwSyntaxError("'\"' expected at end of static string.");
+               // }
+               // break;
+               case TokenNameStringSingleQuote:
+                       getNextToken();
+                       break;
+               case TokenNameStringDoubleQuote:
+                       getNextToken();
+                       break;
+               case TokenNamePLUS:
+                       getNextToken();
+                       static_scalar();
+                       break;
+               case TokenNameMINUS:
+                       getNextToken();
+                       static_scalar();
+                       break;
+               case TokenNamearray:
+                       getNextToken();
+                       if (token != TokenNameLPAREN) {
+                               throwSyntaxError("'(' expected after keyword 'array'");
+                       }
+                       getNextToken();
+                       if (token == TokenNameRPAREN) {
+                               getNextToken();
+                               break;
+                       }
+                       non_empty_static_array_pair_list();
+                       if (token != TokenNameRPAREN) {
+                               throwSyntaxError("')' or ',' expected after keyword 'array'");
+                       }
+                       getNextToken();
+                       break;
+               // case TokenNamenull :
+               // getNextToken();
+               // break;
+               // case TokenNamefalse :
+               // getNextToken();
+               // break;
+               // case TokenNametrue :
+               // getNextToken();
+               // break;
+               default:
+                       throwSyntaxError("Static scalar/constant expected.");
+               }
+       }
+
+       private void non_empty_static_array_pair_list() {
+               // non_empty_static_array_pair_list:
+               // non_empty_static_array_pair_list ',' static_scalar T_DOUBLE_ARROW
+               // static_scalar
+               // | non_empty_static_array_pair_list ',' static_scalar
+               // | static_scalar T_DOUBLE_ARROW static_scalar
+               // | static_scalar
+               while (true) {
+                       static_scalar();
+                       if (token == TokenNameEQUAL_GREATER) {
+                               getNextToken();
+                               static_scalar();
+                       }
+                       if (token != TokenNameCOMMA) {
+                               break;
+                       }
+                       getNextToken();
+                       if (token == TokenNameRPAREN) {
+                               break;
+                       }
+               }
+       }
+
+       // public void reportSyntaxError() { //int act, int currentKind, int
+       // // stateStackTop) {
+       // /* remember current scanner position */
+       // int startPos = scanner.startPosition;
+       // int currentPos = scanner.currentPosition;
+       //
+       // this.checkAndReportBracketAnomalies(problemReporter());
+       // /* reset scanner where it was */
+       // scanner.startPosition = startPos;
+       // scanner.currentPosition = currentPos;
+       // }
+
+       public static final int RoundBracket = 0;
+
+       public static final int SquareBracket = 1;
+
+       public static final int CurlyBracket = 2;
+
+       public static final int BracketKinds = 3;
+
+       protected int[] nestedMethod; // the ptr is nestedType
+
+       protected int nestedType, dimensions;
+
+       // variable set stack
+       final static int VariableStackIncrement = 10;
+
+       HashMap fTypeVariables = null;
+
+       HashMap fMethodVariables = null;
+
+       ArrayList fStackUnassigned = new ArrayList();
+
+       // ast stack
+       final static int AstStackIncrement = 100;
+
+       protected int astPtr;
+
+       protected ASTNode[] astStack = new ASTNode[AstStackIncrement];
+
+       protected int astLengthPtr;
+
+       protected int[] astLengthStack;
+
+       ASTNode[] noAstNodes = new ASTNode[AstStackIncrement];
+
+       public CompilationUnitDeclaration compilationUnit; /*
+                                                                                                                                                                                                                        * the result from parse()
+                                                                                                                                                                                                                        */
+
+       protected ReferenceContext referenceContext;
+
+       protected ProblemReporter problemReporter;
+
+       protected CompilerOptions options;
+
+       private ArrayList includesList;
+
+       // protected CompilationResult compilationResult;
+       /**
+        * Returns this parser's problem reporter initialized with its reference
+        * context. Also it is assumed that a problem is going to be reported, so
+        * initializes the compilation result's line positions.
+        */
+       public ProblemReporter problemReporter() {
+               if (scanner.recordLineSeparator) {
+                       compilationUnit.compilationResult.lineSeparatorPositions = scanner.getLineEnds();
+               }
+               problemReporter.referenceContext = referenceContext;
+               return problemReporter;
+       }
+
+       /*
+        * Reconsider the entire source looking for inconsistencies in {} () []
+        */
+       // public boolean checkAndReportBracketAnomalies(ProblemReporter
+       // problemReporter) {
+       // scanner.wasAcr = false;
+       // boolean anomaliesDetected = false;
+       // try {
+       // char[] source = scanner.source;
+       // int[] leftCount = { 0, 0, 0 };
+       // int[] rightCount = { 0, 0, 0 };
+       // int[] depths = { 0, 0, 0 };
+       // int[][] leftPositions = new int[][] { new int[10], new int[10], new int[10]
+       // };
+       // int[][] leftDepths = new int[][] { new int[10], new int[10], new int[10] };
+       // int[][] rightPositions = new int[][] { new int[10], new int[10], new
+       // int[10] };
+       // int[][] rightDepths = new int[][] { new int[10], new int[10], new int[10]
+       // };
+       // scanner.currentPosition = scanner.initialPosition; //starting
+       // // point
+       // // (first-zero-based
+       // // char)
+       // while (scanner.currentPosition < scanner.eofPosition) { //loop for
+       // // jumping
+       // // over
+       // // comments
+       // try {
+       // // ---------Consume white space and handles
+       // // startPosition---------
+       // boolean isWhiteSpace;
+       // do {
+       // scanner.startPosition = scanner.currentPosition;
+       // // if (((scanner.currentCharacter =
+       // // source[scanner.currentPosition++]) == '\\') &&
+       // // (source[scanner.currentPosition] == 'u')) {
+       // // isWhiteSpace = scanner.jumpOverUnicodeWhiteSpace();
+       // // } else {
+       // if (scanner.recordLineSeparator && ((scanner.currentCharacter == '\r') ||
+       // (scanner.currentCharacter == '\n'))) {
+       // if (scanner.lineEnds[scanner.linePtr] < scanner.startPosition) {
+       // // only record line positions we have not
+       // // recorded yet
+       // scanner.pushLineSeparator();
+       // }
+       // }
+       // isWhiteSpace = CharOperation.isWhitespace(scanner.currentCharacter);
+       // // }
+       // } while (isWhiteSpace && (scanner.currentPosition < scanner.eofPosition));
+       // // -------consume token until } is found---------
+       // switch (scanner.currentCharacter) {
+       // case '{': {
+       // int index = leftCount[CurlyBracket]++;
+       // if (index == leftPositions[CurlyBracket].length) {
+       // System.arraycopy(leftPositions[CurlyBracket], 0,
+       // (leftPositions[CurlyBracket] = new int[index * 2]), 0, index);
+       // System.arraycopy(leftDepths[CurlyBracket], 0, (leftDepths[CurlyBracket] =
+       // new int[index * 2]), 0, index);
+       // }
+       // leftPositions[CurlyBracket][index] = scanner.startPosition;
+       // leftDepths[CurlyBracket][index] = depths[CurlyBracket]++;
+       // }
+       // break;
+       // case '}': {
+       // int index = rightCount[CurlyBracket]++;
+       // if (index == rightPositions[CurlyBracket].length) {
+       // System.arraycopy(rightPositions[CurlyBracket], 0,
+       // (rightPositions[CurlyBracket] = new int[index * 2]), 0, index);
+       // System.arraycopy(rightDepths[CurlyBracket], 0, (rightDepths[CurlyBracket] =
+       // new int[index * 2]), 0, index);
+       // }
+       // rightPositions[CurlyBracket][index] = scanner.startPosition;
+       // rightDepths[CurlyBracket][index] = --depths[CurlyBracket];
+       // }
+       // break;
+       // case '(': {
+       // int index = leftCount[RoundBracket]++;
+       // if (index == leftPositions[RoundBracket].length) {
+       // System.arraycopy(leftPositions[RoundBracket], 0,
+       // (leftPositions[RoundBracket] = new int[index * 2]), 0, index);
+       // System.arraycopy(leftDepths[RoundBracket], 0, (leftDepths[RoundBracket] =
+       // new int[index * 2]), 0, index);
+       // }
+       // leftPositions[RoundBracket][index] = scanner.startPosition;
+       // leftDepths[RoundBracket][index] = depths[RoundBracket]++;
+       // }
+       // break;
+       // case ')': {
+       // int index = rightCount[RoundBracket]++;
+       // if (index == rightPositions[RoundBracket].length) {
+       // System.arraycopy(rightPositions[RoundBracket], 0,
+       // (rightPositions[RoundBracket] = new int[index * 2]), 0, index);
+       // System.arraycopy(rightDepths[RoundBracket], 0, (rightDepths[RoundBracket] =
+       // new int[index * 2]), 0, index);
+       // }
+       // rightPositions[RoundBracket][index] = scanner.startPosition;
+       // rightDepths[RoundBracket][index] = --depths[RoundBracket];
+       // }
+       // break;
+       // case '[': {
+       // int index = leftCount[SquareBracket]++;
+       // if (index == leftPositions[SquareBracket].length) {
+       // System.arraycopy(leftPositions[SquareBracket], 0,
+       // (leftPositions[SquareBracket] = new int[index * 2]), 0, index);
+       // System.arraycopy(leftDepths[SquareBracket], 0, (leftDepths[SquareBracket] =
+       // new int[index * 2]), 0, index);
+       // }
+       // leftPositions[SquareBracket][index] = scanner.startPosition;
+       // leftDepths[SquareBracket][index] = depths[SquareBracket]++;
+       // }
+       // break;
+       // case ']': {
+       // int index = rightCount[SquareBracket]++;
+       // if (index == rightPositions[SquareBracket].length) {
+       // System.arraycopy(rightPositions[SquareBracket], 0,
+       // (rightPositions[SquareBracket] = new int[index * 2]), 0, index);
+       // System.arraycopy(rightDepths[SquareBracket], 0, (rightDepths[SquareBracket]
+       // = new int[index * 2]), 0, index);
+       // }
+       // rightPositions[SquareBracket][index] = scanner.startPosition;
+       // rightDepths[SquareBracket][index] = --depths[SquareBracket];
+       // }
+       // break;
+       // case '\'': {
+       // if (scanner.getNextChar('\\')) {
+       // scanner.scanEscapeCharacter();
+       // } else { // consume next character
+       // scanner.unicodeAsBackSlash = false;
+       // // if (((scanner.currentCharacter =
+       // // source[scanner.currentPosition++]) ==
+       // // '\\') &&
+       // // (source[scanner.currentPosition] ==
+       // // 'u')) {
+       // // scanner.getNextUnicodeChar();
+       // // } else {
+       // if (scanner.withoutUnicodePtr != 0) {
+       // scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] =
+       // scanner.currentCharacter;
+       // }
+       // // }
+       // }
+       // scanner.getNextChar('\'');
+       // break;
+       // }
+       // case '"':
+       // // consume next character
+       // scanner.unicodeAsBackSlash = false;
+       // // if (((scanner.currentCharacter =
+       // // source[scanner.currentPosition++]) == '\\') &&
+       // // (source[scanner.currentPosition] == 'u')) {
+       // // scanner.getNextUnicodeChar();
+       // // } else {
+       // if (scanner.withoutUnicodePtr != 0) {
+       // scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] =
+       // scanner.currentCharacter;
+       // }
+       // // }
+       // while (scanner.currentCharacter != '"') {
+       // if (scanner.currentCharacter == '\r') {
+       // if (source[scanner.currentPosition] == '\n')
+       // scanner.currentPosition++;
+       // break; // the string cannot go further that
+       // // the line
+       // }
+       // if (scanner.currentCharacter == '\n') {
+       // break; // the string cannot go further that
+       // // the line
+       // }
+       // if (scanner.currentCharacter == '\\') {
+       // scanner.scanEscapeCharacter();
+       // }
+       // // consume next character
+       // scanner.unicodeAsBackSlash = false;
+       // // if (((scanner.currentCharacter =
+       // // source[scanner.currentPosition++]) == '\\')
+       // // && (source[scanner.currentPosition] == 'u'))
+       // // {
+       // // scanner.getNextUnicodeChar();
+       // // } else {
+       // if (scanner.withoutUnicodePtr != 0) {
+       // scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] =
+       // scanner.currentCharacter;
+       // }
+       // // }
+       // }
+       // break;
+       // case '/': {
+       // int test;
+       // if ((test = scanner.getNextChar('/', '*')) == 0) { //line
+       // // comment
+       // //get the next char
+       // if (((scanner.currentCharacter = source[scanner.currentPosition++]) ==
+       // '\\')
+       // && (source[scanner.currentPosition] == 'u')) {
+       // //-------------unicode traitement
+       // // ------------
+       // int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
+       // scanner.currentPosition++;
+       // while (source[scanner.currentPosition] == 'u') {
+       // scanner.currentPosition++;
+       // }
+       // if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) >
+       // 15 || c1 < 0
+       // || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c2 < 0
+       // || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c3 < 0
+       // || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c4 < 0) { //error
+       // // don't
+       // // care of the
+       // // value
+       // scanner.currentCharacter = 'A';
+       // } //something different from \n and \r
+       // else {
+       // scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
+       // }
+       // }
+       // while (scanner.currentCharacter != '\r' && scanner.currentCharacter !=
+       // '\n') {
+       // //get the next char
+       // scanner.startPosition = scanner.currentPosition;
+       // if (((scanner.currentCharacter = source[scanner.currentPosition++]) ==
+       // '\\')
+       // && (source[scanner.currentPosition] == 'u')) {
+       // //-------------unicode traitement
+       // // ------------
+       // int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
+       // scanner.currentPosition++;
+       // while (source[scanner.currentPosition] == 'u') {
+       // scanner.currentPosition++;
+       // }
+       // if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) >
+       // 15 || c1 < 0
+       // || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c2 < 0
+       // || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c3 < 0
+       // || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c4 < 0) { //error
+       // // don't
+       // // care of the
+       // // value
+       // scanner.currentCharacter = 'A';
+       // } //something different from \n
+       // // and \r
+       // else {
+       // scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
+       // }
+       // }
+       // }
+       // if (scanner.recordLineSeparator && ((scanner.currentCharacter == '\r') ||
+       // (scanner.currentCharacter == '\n'))) {
+       // if (scanner.lineEnds[scanner.linePtr] < scanner.startPosition) {
+       // // only record line positions we
+       // // have not recorded yet
+       // scanner.pushLineSeparator();
+       // if (this.scanner.taskTags != null) {
+       // this.scanner.checkTaskTag(this.scanner.getCurrentTokenStartPosition(),
+       // this.scanner
+       // .getCurrentTokenEndPosition());
+       // }
+       // }
+       // }
+       // break;
+       // }
+       // if (test > 0) { //traditional and annotation
+       // // comment
+       // boolean star = false;
+       // // consume next character
+       // scanner.unicodeAsBackSlash = false;
+       // // if (((scanner.currentCharacter =
+       // // source[scanner.currentPosition++]) ==
+       // // '\\') &&
+       // // (source[scanner.currentPosition] ==
+       // // 'u')) {
+       // // scanner.getNextUnicodeChar();
+       // // } else {
+       // if (scanner.withoutUnicodePtr != 0) {
+       // scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] =
+       // scanner.currentCharacter;
+       // }
+       // // }
+       // if (scanner.currentCharacter == '*') {
+       // star = true;
+       // }
+       // //get the next char
+       // if (((scanner.currentCharacter = source[scanner.currentPosition++]) ==
+       // '\\')
+       // && (source[scanner.currentPosition] == 'u')) {
+       // //-------------unicode traitement
+       // // ------------
+       // int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
+       // scanner.currentPosition++;
+       // while (source[scanner.currentPosition] == 'u') {
+       // scanner.currentPosition++;
+       // }
+       // if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) >
+       // 15 || c1 < 0
+       // || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c2 < 0
+       // || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c3 < 0
+       // || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c4 < 0) { //error
+       // // don't
+       // // care of the
+       // // value
+       // scanner.currentCharacter = 'A';
+       // } //something different from * and /
+       // else {
+       // scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
+       // }
+       // }
+       // //loop until end of comment */
+       // while ((scanner.currentCharacter != '/') || (!star)) {
+       // star = scanner.currentCharacter == '*';
+       // //get next char
+       // if (((scanner.currentCharacter = source[scanner.currentPosition++]) ==
+       // '\\')
+       // && (source[scanner.currentPosition] == 'u')) {
+       // //-------------unicode traitement
+       // // ------------
+       // int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
+       // scanner.currentPosition++;
+       // while (source[scanner.currentPosition] == 'u') {
+       // scanner.currentPosition++;
+       // }
+       // if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) >
+       // 15 || c1 < 0
+       // || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c2 < 0
+       // || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c3 < 0
+       // || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15
+       // || c4 < 0) { //error
+       // // don't
+       // // care of the
+       // // value
+       // scanner.currentCharacter = 'A';
+       // } //something different from * and
+       // // /
+       // else {
+       // scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
+       // }
+       // }
+       // }
+       // if (this.scanner.taskTags != null) {
+       // this.scanner.checkTaskTag(this.scanner.getCurrentTokenStartPosition(),
+       // this.scanner.getCurrentTokenEndPosition());
+       // }
+       // break;
+       // }
+       // break;
+       // }
+       // default:
+       // if (Scanner.isPHPIdentifierStart(scanner.currentCharacter)) {
+       // scanner.scanIdentifierOrKeyword(false);
+       // break;
+       // }
+       // if (Character.isDigit(scanner.currentCharacter)) {
+       // scanner.scanNumber(false);
+       // break;
+       // }
+       // }
+       // //-----------------end switch while
+       // // try--------------------
+       // } catch (IndexOutOfBoundsException e) {
+       // break; // read until EOF
+       // } catch (InvalidInputException e) {
+       // return false; // no clue
+       // }
+       // }
+       // if (scanner.recordLineSeparator) {
+       // compilationUnit.compilationResult.lineSeparatorPositions =
+       // scanner.getLineEnds();
+       // }
+       // // check placement anomalies against other kinds of brackets
+       // for (int kind = 0; kind < BracketKinds; kind++) {
+       // for (int leftIndex = leftCount[kind] - 1; leftIndex >= 0; leftIndex--) {
+       // int start = leftPositions[kind][leftIndex]; // deepest
+       // // first
+       // // find matching closing bracket
+       // int depth = leftDepths[kind][leftIndex];
+       // int end = -1;
+       // for (int i = 0; i < rightCount[kind]; i++) {
+       // int pos = rightPositions[kind][i];
+       // // want matching bracket further in source with same
+       // // depth
+       // if ((pos > start) && (depth == rightDepths[kind][i])) {
+       // end = pos;
+       // break;
+       // }
+       // }
+       // if (end < 0) { // did not find a good closing match
+       // problemReporter.unmatchedBracket(start, referenceContext,
+       // compilationUnit.compilationResult);
+       // return true;
+       // }
+       // // check if even number of opening/closing other brackets
+       // // in between this pair of brackets
+       // int balance = 0;
+       // for (int otherKind = 0; (balance == 0) && (otherKind < BracketKinds);
+       // otherKind++) {
+       // for (int i = 0; i < leftCount[otherKind]; i++) {
+       // int pos = leftPositions[otherKind][i];
+       // if ((pos > start) && (pos < end))
+       // balance++;
+       // }
+       // for (int i = 0; i < rightCount[otherKind]; i++) {
+       // int pos = rightPositions[otherKind][i];
+       // if ((pos > start) && (pos < end))
+       // balance--;
+       // }
+       // if (balance != 0) {
+       // problemReporter.unmatchedBracket(start, referenceContext,
+       // compilationUnit.compilationResult); //bracket
+       // // anomaly
+       // return true;
+       // }
+       // }
+       // }
+       // // too many opening brackets ?
+       // for (int i = rightCount[kind]; i < leftCount[kind]; i++) {
+       // anomaliesDetected = true;
+       // problemReporter.unmatchedBracket(leftPositions[kind][leftCount[kind] - i -
+       // 1], referenceContext,
+       // compilationUnit.compilationResult);
+       // }
+       // // too many closing brackets ?
+       // for (int i = leftCount[kind]; i < rightCount[kind]; i++) {
+       // anomaliesDetected = true;
+       // problemReporter.unmatchedBracket(rightPositions[kind][i], referenceContext,
+       // compilationUnit.compilationResult);
+       // }
+       // if (anomaliesDetected)
+       // return true;
+       // }
+       // return anomaliesDetected;
+       // } catch (ArrayStoreException e) { // jdk1.2.2 jit bug
+       // return anomaliesDetected;
+       // } catch (NullPointerException e) { // jdk1.2.2 jit bug
+       // return anomaliesDetected;
+       // }
+       // }
+       protected void pushOnAstLengthStack(int pos) {
+               try {
+                       astLengthStack[++astLengthPtr] = pos;
+               } catch (IndexOutOfBoundsException e) {
+                       int oldStackLength = astLengthStack.length;
+                       int[] oldPos = astLengthStack;
+                       astLengthStack = new int[oldStackLength + StackIncrement];
+                       System.arraycopy(oldPos, 0, astLengthStack, 0, oldStackLength);
+                       astLengthStack[astLengthPtr] = pos;
+               }
+       }
+
+       protected void pushOnAstStack(ASTNode node) {
+               /*
+                * add a new obj on top of the ast stack
+                */
+               try {
+                       astStack[++astPtr] = node;
+               } catch (IndexOutOfBoundsException e) {
+                       int oldStackLength = astStack.length;
+                       ASTNode[] oldStack = astStack;
+                       astStack = new ASTNode[oldStackLength + AstStackIncrement];
+                       System.arraycopy(oldStack, 0, astStack, 0, oldStackLength);
+                       astPtr = oldStackLength;
+                       astStack[astPtr] = node;
+               }
+               try {
+                       astLengthStack[++astLengthPtr] = 1;
+               } catch (IndexOutOfBoundsException e) {
+                       int oldStackLength = astLengthStack.length;
+                       int[] oldPos = astLengthStack;
+                       astLengthStack = new int[oldStackLength + AstStackIncrement];
+                       System.arraycopy(oldPos, 0, astLengthStack, 0, oldStackLength);
+                       astLengthStack[astLengthPtr] = 1;
+               }
+       }
+
+       protected void resetModifiers() {
+               this.modifiers = AccDefault;
+               this.modifiersSourceStart = -1; // <-- see comment into
+               // modifiersFlag(int)
+               this.scanner.commentPtr = -1;
+       }
+
+       protected void consumePackageDeclarationName(IFile file) {
+               // create a package name similar to java package names
+               String projectPath = ProjectPrefUtil.getDocumentRoot(file.getProject()).toString();
+               String filePath = file.getRawLocation().toString();
+               String ext = file.getRawLocation().getFileExtension();
+               int fileExtensionLength = ext == null ? 0 : ext.length() + 1;
+               ImportReference impt;
+               char[][] tokens;
+               if (filePath.startsWith(projectPath)) {
+                       tokens = CharOperation
+                                       .splitOn('/', filePath.toCharArray(), projectPath.length() + 1, filePath.length() - fileExtensionLength);
+               } else {
+                       String name = file.getName();
+                       tokens = new char[1][];
+                       tokens[0] = name.substring(0, name.length() - fileExtensionLength).toCharArray();
+               }
+
+               this.compilationUnit.currentPackage = impt = new ImportReference(tokens, new char[0], 0, 0, true);
+
+               impt.declarationSourceStart = 0;
+               impt.declarationSourceEnd = 0;
+               impt.declarationEnd = 0;
+               // endPosition is just before the ;
+
+       }
+
+       public final static String[] GLOBALS = { "$this", "$_COOKIE", "$_ENV", "$_FILES", "$_GET", "$GLOBALS", "$_POST", "$_REQUEST",
+                       "$_SESSION", "$_SERVER" };
+
+       /**
+        *
+        */
+       private void pushFunctionVariableSet() {
+               HashSet set = new HashSet();
+               if (fStackUnassigned.isEmpty()) {
+                       for (int i = 0; i < GLOBALS.length; i++) {
+                               set.add(GLOBALS[i]);
+                       }
+               }
+               fStackUnassigned.add(set);
+       }
+
+       private void pushIfVariableSet() {
+               if (!fStackUnassigned.isEmpty()) {
+                       HashSet set = new HashSet();
+                       fStackUnassigned.add(set);
+               }
+       }
+
+       private HashSet removeIfVariableSet() {
+               if (!fStackUnassigned.isEmpty()) {
+                       return (HashSet) fStackUnassigned.remove(fStackUnassigned.size() - 1);
+               }
+               return null;
+       }
+
+       /**
+        * Returns the <i>set of assigned variables </i> returns null if no Set is
+        * defined at the current scanner position
+        */
+       private HashSet peekVariableSet() {
+               if (!fStackUnassigned.isEmpty()) {
+                       return (HashSet) fStackUnassigned.get(fStackUnassigned.size() - 1);
+               }
+               return null;
+       }
+
+       /**
+        * add the current identifier source to the <i>set of assigned variables </i>
+        *
+        * @param set
+        */
+       private void addVariableSet(HashSet set) {
+               if (set != null) {
+                       set.add(new String(scanner.getCurrentTokenSource()));
+               }
+       }
+
+       /**
+        * add the current identifier source to the <i>set of assigned variables </i>
+        *
+        */
+       private void addVariableSet() {
+               HashSet set = peekVariableSet();
+               if (set != null) {
+                       set.add(new String(scanner.getCurrentTokenSource()));
+               }
+       }
+
+       /**
+        * add the current identifier source to the <i>set of assigned variables </i>
+        *
+        */
+       private void addVariableSet(char[] token) {
+               HashSet set = peekVariableSet();
+               if (set != null) {
+                       set.add(new String(token));
+               }
+       }
+
+       /**
+        * check if the current identifier source is in the <i>set of assigned
+        * variables </i> Returns true, if no set is defined for the current scanner
+        * position
+        *
+        */
+       private boolean containsVariableSet() {
+               return containsVariableSet(scanner.getCurrentTokenSource());
+       }
+
+       private boolean containsVariableSet(char[] token) {
+
+               if (!fStackUnassigned.isEmpty()) {
+                       HashSet set;
+                       String str = new String(token);
+                       for (int i = 0; i < fStackUnassigned.size(); i++) {
+                               set = (HashSet) fStackUnassigned.get(i);
+                               if (set.contains(str)) {
+                                       return true;
+                               }
+                       }
+                       return false;
+               }
+               return true;
+       }
 }
\ No newline at end of file