/*******************************************************************************
 * Copyright (c) 2002 Klaus Hartlage - www.eclipseproject.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: Klaus Hartlage - www.eclipseproject.de
 ******************************************************************************/
package net.sourceforge.phpdt.internal.compiler.parser;
import java.util.ArrayList;

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.impl.CompilerOptions;
import net.sourceforge.phpdt.internal.compiler.impl.ReferenceContext;
import net.sourceforge.phpdt.internal.compiler.lookup.CompilerModifiers;
import net.sourceforge.phpdt.internal.compiler.lookup.TypeConstants;
import net.sourceforge.phpdt.internal.compiler.problem.ProblemReporter;
import net.sourceforge.phpdt.internal.compiler.problem.ProblemSeverities;
import net.sourceforge.phpdt.internal.compiler.util.Util;
import net.sourceforge.phpeclipse.internal.compiler.ast.AbstractMethodDeclaration;
import net.sourceforge.phpeclipse.internal.compiler.ast.AstNode;
import net.sourceforge.phpeclipse.internal.compiler.ast.CompilationUnitDeclaration;
import net.sourceforge.phpeclipse.internal.compiler.ast.FieldDeclaration;
import net.sourceforge.phpeclipse.internal.compiler.ast.ImportReference;
import net.sourceforge.phpeclipse.internal.compiler.ast.MethodDeclaration;
import net.sourceforge.phpeclipse.internal.compiler.ast.SingleTypeReference;
import net.sourceforge.phpeclipse.internal.compiler.ast.TypeDeclaration;

import org.eclipse.core.resources.IFile;
public class Parser //extends PHPParserSuperclass
    implements ITerminalSymbols, CompilerModifiers, ParserBasicInformation {
  //internal data for the automat
  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.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.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 */);
  }
  /**
   * 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) {
    problemReporter.phpParsingError(new String[]{error}, problemStartPosition, problemEndPosition, referenceContext,
        compilationUnit.compilationResult);
    throw new SyntaxError(1, 0, " ", error);
  }
  private void reportSyntaxError(String error, int problemStartPosition, int problemEndPosition) {
    problemReporter.phpParsingError(new String[]{error}, problemStartPosition, problemEndPosition, referenceContext,
        compilationUnit.compilationResult);
  }
  private void reportSyntaxWarning(String error, int problemStartPosition, int problemEndPosition) {
    problemReporter.phpParsingWarning(new String[]{error}, problemStartPosition, problemEndPosition, referenceContext,
        compilationUnit.compilationResult);
  }
  /**
   * Method Declaration.
   * 
   * @see
   */
  //  private void getChar() {
  //    if (str.length() > chIndx) {
  //      ch = str.charAt(chIndx++);
  //
  //      return;
  //    }
  //
  //    chIndx = str.length() + 1;
  //    ch = ' ';
  //    // token = TokenNameEOF;
  //    phpEnd = true;
  //  }
  /**
   * 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;
    }
    return;
  }
  public void init(String s) {
    this.str = s;
    this.token = TokenNameEOF;
    //    this.chIndx = 0;
    //    this.rowCount = 1;
    //    this.columnCount = 0;
    this.phpEnd = false;
    //    this.phpMode = false;
    /* scanner initialization */
    scanner.setSource(s.toCharArray());
    scanner.setPHPMode(false);
  }
  protected void initialize(boolean phpMode) {
    compilationUnit = null;
    referenceContext = null;
    includesList = new ArrayList();
    this.str = "";
    this.token = TokenNameEOF;
    //    this.chIndx = 0;
    //    this.rowCount = 1;
    //    this.columnCount = 0;
    this.phpEnd = false;
    //    this.phpMode = phpMode;
    scanner.setPHPMode(phpMode);
  }
  /**
   * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
   * &lt;/body&gt;'
   */
  public void parse(String s) {
    init(s);
    parse();
  }
  /**
   * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
   * &lt;/body&gt;'
   */
  protected void parse() {
    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) {
        // setMarker(sytaxErr1.getMessage(), sytaxErr1.getLine(),
        // ERROR);
        //        setMarker(sytaxErr1.getMessage(),
        // scanner.getCurrentTokenStartPosition(),
        // scanner.getCurrentTokenEndPosition(), ERROR);
        try {
          // if an error occured,
          // try to find keywords 'class' or 'function'
          // to parse the rest of the string
          while (token != TokenNameEOF && token != TokenNameERROR) {
            if (token == TokenNameabstract || token == TokenNamefinal || token == TokenNameclass || token == TokenNamefunction) {
              break;
            }
            getNextToken();
          }
          if (token == TokenNameEOF || token == TokenNameERROR) {
            break;
          }
        } catch (SyntaxError sytaxErr2) {
          //    setMarker(sytaxErr2.getMessage(), sytaxErr2.getLine(),
          // ERROR);
          //          setMarker(sytaxErr2.getMessage(),
          // scanner.getCurrentTokenStartPosition(),
          // scanner.getCurrentTokenEndPosition(), ERROR);
          break;
        }
      }
    } while (true);

    endParse(0);
  }

  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;
  }
  //  public PHPOutlineInfo parseInfo(Object parent, String s) {
  //    PHPOutlineInfo outlineInfo = new PHPOutlineInfo(parent);
  //    // Stack stack = new Stack();
  //    // stack.push(outlineInfo.getDeclarations());
  //    this.str = s;
  //    this.token = TokenNameEOF;
  //    // this.chIndx = 0;
  //    // this.rowCount = 1;
  //    // this.columnCount = 0;
  //    this.phpEnd = false;
  //    this.phpMode = false;
  //    scanner.setSource(s.toCharArray());
  //    scanner.setPHPMode(false);
  //    
  //    getNextToken();
  //    parseDeclarations(outlineInfo, outlineInfo.getDeclarations(), false);
  //    
  //    return outlineInfo;
  //  }
  private boolean isVariable() {
    return token == TokenNameVariable; //  || token == TokenNamethis;
  }
  //  private void parseDeclarations(PHPOutlineInfo outlineInfo,
  //      OutlineableWithChildren current, boolean goBack) {
  //    char[] ident;
  //    // PHPClassDeclaration current = (PHPClassDeclaration) stack.peek();
  //    PHPSegmentWithChildren temp;
  //    int counter = 0;
  //    IPreferenceStore store =
  // PHPeclipsePlugin.getDefault().getPreferenceStore();
  //    try {
  //      while (token != TokenNameEOF && token != TokenNameERROR) {
  //        if (token == TokenNameVariable) {
  //          ident = scanner.getCurrentIdentifierSource();
  //          outlineInfo.addVariable(new String(ident));
  //          getNextToken();
  //        } else if (token == TokenNamevar) {
  //          getNextToken();
  //          if (token == TokenNameVariable
  //              && store.getBoolean(PHPeclipsePlugin.PHP_OUTLINE_VAR)) {
  //            ident = scanner.getCurrentIdentifierSource();
  //            //substring(1) added because PHPVarDeclaration doesn't
  //            // need the $ anymore
  //            String variableName = new String(ident).substring(1);
  //            outlineInfo.addVariable(variableName);
  //            getNextToken();
  //            if (token != TokenNameSEMICOLON) {
  //              getNextToken();
  //              ident = scanner.getCurrentTokenSource();
  //              if (token > TokenNameKEYWORD) {
  //                current.add(new PHPVarDeclaration(current, variableName,
  //                // chIndx - ident.length,
  //                    scanner.getCurrentTokenStartPosition(), new String(ident)));
  //              } else {
  //                switch (token) {
  //                  case TokenNameVariable :
  //                  case TokenNamethis :
  //                    current.add(new PHPVarDeclaration(current, variableName,
  //                    // chIndx -
  //                        // ident.length,
  //                        scanner.getCurrentTokenStartPosition(), new String(
  //                            ident)));
  //                    break;
  //                  case TokenNameIdentifier :
  //                    current.add(new PHPVarDeclaration(current, variableName,
  //                    // chIndx -
  //                        // ident.length,
  //                        scanner.getCurrentTokenStartPosition(), new String(
  //                            ident)));
  //                    break;
  //                  case TokenNameDoubleLiteral :
  //                    current.add(new PHPVarDeclaration(current, variableName
  //                        + doubleNumber,
  //                    // chIndx -
  //                        // ident.length,
  //                        scanner.getCurrentTokenStartPosition(), new String(
  //                            ident)));
  //                    break;
  //                  case TokenNameIntegerLiteral :
  //                    current.add(new PHPVarDeclaration(current, variableName,
  //                    // chIndx -
  //                        // ident.length,
  //                        scanner.getCurrentTokenStartPosition(), new String(
  //                            ident)));
  //                    break;
  //                  case TokenNameStringInterpolated :
  //                  case TokenNameStringLiteral :
  //                    current.add(new PHPVarDeclaration(current, variableName,
  //                    // chIndx -
  //                        // ident.length,
  //                        scanner.getCurrentTokenStartPosition(), new String(
  //                            ident)));
  //                    break;
  //                  case TokenNameStringConstant :
  //                    current.add(new PHPVarDeclaration(current, variableName,
  //                    // chIndx -
  //                        // ident.length,
  //                        scanner.getCurrentTokenStartPosition(), new String(
  //                            ident)));
  //                    break;
  //                  default :
  //                    current.add(new PHPVarDeclaration(current, variableName,
  //                    // chIndx -
  //                        // ident.length
  //                        scanner.getCurrentTokenStartPosition()));
  //                    break;
  //                }
  //              }
  //            } else {
  //              ident = scanner.getCurrentIdentifierSource();
  //              current.add(new PHPVarDeclaration(current, variableName,
  //              // chIndx - ident.length
  //                  scanner.getCurrentTokenStartPosition()));
  //            }
  //          }
  //        } else if (token == TokenNamefunction) {
  //          getNextToken();
  //          if (token == TokenNameAND) {
  //            getNextToken();
  //          }
  //          if (token == TokenNameIdentifier
  //              && store.getBoolean(PHPeclipsePlugin.PHP_OUTLINE_FUNC)) {
  //            ident = scanner.getCurrentIdentifierSource();
  //            outlineInfo.addVariable(new String(ident));
  //            temp = new PHPFunctionDeclaration(current, new String(ident),
  //            // chIndx - ident.length
  //                scanner.getCurrentTokenStartPosition());
  //            current.add(temp);
  //            getNextToken();
  //            parseDeclarations(outlineInfo, temp, true);
  //          }
  //        } else if (token == TokenNameclass) {
  //          getNextToken();
  //          if (token == TokenNameIdentifier
  //              && store.getBoolean(PHPeclipsePlugin.PHP_OUTLINE_CLASS)) {
  //            ident = scanner.getCurrentIdentifierSource();
  //            outlineInfo.addVariable(new String(ident));
  //            temp = new PHPClassDeclaration(current, new String(ident),
  //            // chIndx - ident.len
  //                scanner.getCurrentTokenStartPosition());
  //            current.add(temp);
  //            // stack.push(temp);
  //            getNextToken();
  //            //skip tokens for classname, extends and others until
  //            // we have the opening '{'
  //            while (token != TokenNameLBRACE && token != TokenNameEOF
  //                && token != TokenNameERROR) {
  //              getNextToken();
  //            }
  //            parseDeclarations(outlineInfo, temp, true);
  //            // stack.pop();
  //          }
  //        } else if ((token == TokenNameLBRACE)
  //            || (token == TokenNameDOLLAR_LBRACE)) {
  //          getNextToken();
  //          counter++;
  //        } else if (token == TokenNameRBRACE) {
  //          getNextToken();
  //          --counter;
  //          if (counter == 0 && goBack) {
  //            return;
  //          }
  //        } else if (token == TokenNamerequire || token == TokenNamerequire_once
  //            || token == TokenNameinclude || token == TokenNameinclude_once) {
  //          ident = scanner.getCurrentTokenSource();
  //          getNextToken();
  //          int startPosition = scanner.getCurrentTokenStartPosition();
  //          expr();
  //          char[] expr = scanner.getCurrentTokenSource(startPosition);
  //          outlineInfo.addVariable(new String(ident));
  //          current.add(new PHPReqIncDeclaration(current, new String(ident),
  //          // chIndx - ident.length,
  //              startPosition, new String(expr)));
  //          getNextToken();
  //        } else {
  //          getNextToken();
  //        }
  //      }
  //    } catch (SyntaxError sytaxErr) {
  //      // try {
  //      // // setMarker(sytaxErr.getMessage(), sytaxErr.getLine(), ERROR);
  //      // setMarker(sytaxErr.getMessage(),
  //      // scanner.getCurrentTokenStartPosition(),
  //      // scanner.getCurrentTokenEndPosition(), ERROR);
  //      // } catch (CoreException e) {
  //      // }
  //    }
  //  }
  private void statementList() {
    do {
      statement(TokenNameEOF);
      if ((token == TokenNameRBRACE) || (token == TokenNamecase) || (token == TokenNamedefault) || (token == TokenNameelse)
          || (token == TokenNameelseif) || (token == TokenNameendif) || (token == TokenNameendfor)
          || (token == TokenNameendforeach) || (token == TokenNameendwhile) || (token == TokenNameendswitch)
          || (token == TokenNameEOF) || (token == TokenNameERROR)) {
        return;
      }
    } 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 void statement(int previousToken) {
    //   if (token > TokenNameKEYWORD && token != TokenNamelist && token !=
    // TokenNamenew) {
    //  char[] ident = scanner.getCurrentIdentifierSource();
    //  String keyword = new String(ident);
    //    if (token == TokenNameAT) {
    //      getNextToken();
    //      if (token != TokenNamerequire && token != TokenNamerequire_once
    //          && token != TokenNameinclude && token != TokenNameinclude_once
    //          && token != TokenNameIdentifier && token != TokenNameVariable
    //          && token != TokenNameStringInterpolated) {
    //        throwSyntaxError("identifier expected after '@'.");
    //      }
    //    }
    //    if (token == TokenNameinclude || token == TokenNameinclude_once) {
    //      getNextToken();
    //      if (token == TokenNameLPAREN) {
    //        expr();
    //        if (token == TokenNameSEMICOLON) {
    //          getNextToken();
    //        } else {
    //          if (previousToken != TokenNameAT && token != TokenNameStopPHP) {
    //            throwSyntaxError("';' expected after 'include' or 'include_once'.");
    //          }
    //          // getNextToken();
    //        }
    //      } else {
    //        concatenationExpression();
    //      }
    //      return;
    //    } else if (token == TokenNamerequire || token ==
    // TokenNamerequire_once)
    // {
    //      getNextToken();
    //      //constant();
    //      if (token == TokenNameLPAREN) {
    //        expr();
    //        if (token == TokenNameSEMICOLON) {
    //          getNextToken();
    //        } else {
    //          if (previousToken != TokenNameAT && token != TokenNameStopPHP) {
    //            throwSyntaxError("';' expected after 'require' or 'require_once'.");
    //          }
    //          // getNextToken();
    //        }
    //      } else {
    //        concatenationExpression();
    //      }
    //      return;
    //    } else
    if (token == TokenNameif) {
      getNextToken();
      if (token == TokenNameLPAREN) {
        getNextToken();
      } else {
        throwSyntaxError("'(' expected after 'if' keyword.");
      }
      expr();
      if (token == TokenNameRPAREN) {
        getNextToken();
      } else {
        throwSyntaxError("')' expected after 'if' condition.");
      }
      ifStatement();
      return;
    } 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;
    } 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;
    } 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;
    } 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;
    } 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;
    } 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;
    } else if (token == TokenNameecho) {
      getNextToken();
      expressionList();
      if (token == TokenNameSEMICOLON) {
        getNextToken();
      } else {
        if (token != TokenNameINLINE_HTML) {
          throwSyntaxError("';' expected after 'echo' statement.");
        }
        getNextToken();
      }
      return;
    } else if (token == TokenNameINLINE_HTML) {
      getNextToken();
      return;
      //    } 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;
    } else if (token == TokenNamestatic) {
      getNextToken();
      static_var_list();
      if (token == TokenNameSEMICOLON) {
        getNextToken();
      } else {
        if (token != TokenNameINLINE_HTML) {
          throwSyntaxError("';' expected after 'static' statement.");
        }
        getNextToken();
      }
      return;
    } 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;
    } else if (token == TokenNamefunction) {
      MethodDeclaration methodDecl = new MethodDeclaration(this.compilationUnit.compilationResult);
      methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
      getNextToken();
      functionDefinition(methodDecl);
      return;
    } 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;
    } 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;
    } else if (token == TokenNamethrow) {
      getNextToken();
      expr();
      if (token == TokenNameSEMICOLON) {
        getNextToken();
      } else {
        throwSyntaxError("';' expected after 'throw' exxpression.");
      }
      return;
    } else if (token == TokenNamefinal || token == TokenNameabstract || token == TokenNameclass || token == TokenNameinterface) {
      TypeDeclaration typeDecl = new TypeDeclaration(this.compilationUnit.compilationResult);
      typeDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
      // default super class
      typeDecl.superclass = new SingleTypeReference(TypeConstants.OBJECT, 0);
      compilationUnit.types.add(typeDecl);
      try {
        pushOnAstStack(typeDecl);
        unticked_class_declaration_statement(typeDecl);
        //        classBody(typeDecl);
      } finally {
        astPtr--;
        astLengthPtr--;
      }
      return;
      //      } else {
      //        throwSyntaxError("Unexpected keyword '" + keyword + "'");
    } else if (token == TokenNameLBRACE) {
      getNextToken();
      if (token != TokenNameRBRACE) {
        statementList();
      }
      if (token == TokenNameRBRACE) {
        getNextToken();
        return;
      } else {
        throwSyntaxError("'}' expected.");
      }
    } else {
      if (token != TokenNameSEMICOLON) {
        expr();
      }
      if (token == TokenNameSEMICOLON) {
        getNextToken();
        return;
      } else {
        if (token != TokenNameINLINE_HTML && token != TokenNameEOF) {
          throwSyntaxError("';' expected after expression (Found token: " + scanner.toStringAction(token) + ")");
        }
        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();
      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) {
      getNextToken();
    } else if (token == TokenNameDOLLAR) {
      getNextToken();
      if (token == TokenNameLPAREN) {
        getNextToken();
        expr();
        if (token != TokenNameLPAREN) {
          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) {
        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;
      if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
        typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
        typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
        typeDecl.name = scanner.getCurrentIdentifierSource();
        if (token > TokenNameKEYWORD) {
          throwSyntaxError("Don't use a keyword for interface declaration [" + scanner.toStringAction(token) + "].",
              typeDecl.sourceStart, typeDecl.sourceEnd);
        }
        getNextToken();
        interface_extends_list();
      } else {
        typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
        typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
        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;
      //identifier
      //identifier 'extends' identifier
      if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
        typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
        typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
        typeDecl.name = scanner.getCurrentIdentifierSource();
        if (token > TokenNameKEYWORD) {
          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();
          //          getNextToken();
          //          if (token != TokenNameIdentifier) {
          //            throwSyntaxError("Class name expected after keyword
          // 'extends'.",
          //                scanner.getCurrentTokenStartPosition(), scanner
          //                    .getCurrentTokenEndPosition());
          //          }
        }
        implements_list();
      } else {
        typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
        typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
        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 interface_extends_list() {
    //	/* empty */
    //	| T_EXTENDS interface_list
    if (token == TokenNameextends) {
      getNextToken();
      interface_list();
    }
  }
  private void implements_list() {
    //	/* 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 {
      class_statement(list);
    } while (token == TokenNamepublic || token == TokenNameprotected || token == TokenNameprivate || token == TokenNamestatic
        || token == TokenNameabstract || token == TokenNamefinal || token == TokenNamefunction || token == TokenNamevar
        || token == TokenNameconst);
  }
  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) {
      class_constant_declaration();
      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;
        getNextToken();
        functionDefinition(methodDecl);
      } else {
        if (!hasModifiers) {
          throwSyntaxError("'public' 'private' or 'protected' modifier expected for field declarations.");
        }
        class_variable_declaration(declarationSourceStart, list);
      }
    }
    //    if (token == TokenNamefunction) {
    //      MethodDeclaration methodDecl = new MethodDeclaration(
    //          this.compilationUnit.compilationResult);
    //      methodDecl.declarationSourceStart = scanner
    //          .getCurrentTokenStartPosition();
    //      getNextToken();
    //      functionDefinition(methodDecl);
    //    } else if (token == TokenNamevar) {
    //      getNextToken();
    //      classProperty();
    //    } else {
    //      throwSyntaxError("'function' or 'var' expected.");
    //    }
  }
  private void class_constant_declaration() {
    //	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.");
      }
      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
    do {
      if (token == TokenNameVariable) {
        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) {
          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) {
      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], 1,
              typeDecl.methods.length);
          newMethods[0] = 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();
    }
    if (token == TokenNameIdentifier) {
      methodDecl.sourceStart = scanner.getCurrentTokenStartPosition();
      methodDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
      methodDecl.selector = scanner.getCurrentIdentifierSource();
      getNextToken();
      if (token == TokenNameLPAREN) {
        getNextToken();
      } else {
        throwSyntaxError("'(' expected in function declaration.");
      }
      if (token != TokenNameRPAREN) {
        parameter_list();
      }
      if (token != TokenNameRPAREN) {
        throwSyntaxError("')' expected in function declaration.");
      } else {
        methodDecl.bodyStart = scanner.getCurrentTokenEndPosition() + 1;
        getNextToken();
      }
    } else {
      if (token > TokenNameKEYWORD) {
        throwSyntaxError("Don't use keyword for function declaration [" + token + "].");
      }
      throwSyntaxError("Function name expected after keyword 'function'.");
    }
  }
  //
  private void parameter_list() {
    //	non_empty_parameter_list
    //	| /* empty */
    non_empty_parameter_list(true);
  }
  private void non_empty_parameter_list(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
    if (token == TokenNameIdentifier || token == TokenNameVariable || token == TokenNameAND) {
      while (true) {
        if (token == TokenNameIdentifier) {
          getNextToken();
        }
        if (token == TokenNameAND) {
          getNextToken();
        }
        if (token == TokenNameVariable) {
          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 after 'case' constant expected (Found token: " + scanner.toStringAction(token) + ")");
        }
      } else { // TokenNamedefault
        getNextToken();
        if (token == TokenNameCOLON) {
          getNextToken();
          if (token == TokenNameRBRACE) {
            // empty default case
            break;
          }
          statementList();
        } else {
          throwSyntaxError("':' character after 'default' expected.");
        }
      }
    } 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 void expr() {
    //	r_variable
    //	| expr_without_variable
    //    if (token!=TokenNameEOF) {
    if (Scanner.TRACE) {
      System.out.println("TRACE: expr()");
    }
    expr_without_variable(true);
    //    }
  }
  private void expr_without_variable(boolean only_variable) {
    //	 	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 {
          if (token == TokenNameEncapsedString1) {
          } else {
            encaps_list();
            if (token != TokenNameEncapsedString1) {
              throwSyntaxError("\'\'\' expected at end of string" + "(Found token: " + scanner.toStringAction(token) + " )");
            }
          }
        } finally {
          scanner.encapsedStringStack.pop();
          getNextToken();
        }
        break;
      //| '"' encaps_list '"'
      case TokenNameEncapsedString2 :
        scanner.encapsedStringStack.push(new Character('"'));
        getNextToken();
        try {
          if (token == TokenNameEncapsedString2) {
          } else {
            encaps_list();
            if (token != TokenNameEncapsedString2) {
              throwSyntaxError("'\"' expected at end of string" + "(Found token: " + scanner.toStringAction(token) + " )");
            }
          }
        } finally {
          scanner.encapsedStringStack.pop();
          getNextToken();
        }
        break;
      case TokenNameIntegerLiteral :
      case TokenNameDoubleLiteral :
      case TokenNameStringDoubleQuote :
      case TokenNameStringSingleQuote :
      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("')' 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();
        class_name_reference();
        ctor_arguments();
        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 :
        variable();
        switch (token) {
          case TokenNameEQUAL :
            getNextToken();
            if (token == TokenNameAND) {
              getNextToken();
              if (token == TokenNamenew) {
                // | variable '=' '&' T_NEW class_name_reference
                // ctor_arguments
                getNextToken();
                class_name_reference();
                ctor_arguments();
              } else {
                variable();
              }
            } else {
              expr();
            }
            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) + "').");
            }
        }
        break;
      default :
        if (token != TokenNameINLINE_HTML) {
          if (token > TokenNameKEYWORD) {
            getNextToken();
            break;
          } else {
            throwSyntaxError("Error in expression (found token '" + scanner.toStringAction(token) + "').");
          }
        }
        return;
    }
    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 :
        case TokenNameAND_AND :
        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 TokenNameEQUAL_EQUAL :
        case TokenNameNOT_EQUAL :
        case TokenNameLESS :
        case TokenNameLESS_EQUAL :
        case TokenNameGREATER :
        case TokenNameGREATER_EQUAL :
          getNextToken();
          expr();
          break;
        //  | expr T_INSTANCEOF class_name_reference
        //	| expr '?' expr ':' expr
        case TokenNameinstanceof :
          getNextToken();
          class_name_reference();
          break;
        case TokenNameQUESTION :
          getNextToken();
          expr();
          if (token == TokenNameCOLON) {
            getNextToken();
            expr();
          }
          break;
        default :
          return;
      }
    }
  }
  private void class_name_reference() {
    //  class_name_reference:
    //	T_STRING
    //| dynamic_class_name_reference
    if (Scanner.TRACE) {
      System.out.println("TRACE: class_name_reference()");
    }
    if (token == TokenNameIdentifier) {
      getNextToken();
    } else {
      dynamic_class_name_reference();
    }
  }
  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 void 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();
    }
    reference_variable();
  }
  private void 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 ')'
    if (Scanner.TRACE) {
      System.out.println("TRACE: function_call()");
    }
    if (token == TokenNameIdentifier) {
      getNextToken();
      switch (token) {
        case TokenNamePAAMAYIM_NEKUDOTAYIM :
          // static member:
          getNextToken();
          if (token == TokenNameIdentifier) {
            // class _constant
            getNextToken();
          } else {
            //        static member:
            variable_without_objects();
          }
          break;
      }
    } else {
      variable_without_objects();
    }
    if (token != TokenNameLPAREN) {
      // TODO is this ok ?
      return;
      //      throwSyntaxError("'(' expected in function call.");
    }
    getNextToken();
    if (token == TokenNameRPAREN) {
      getNextToken();
      return;
    }
    non_empty_function_call_parameter_list();
    if (token != TokenNameRPAREN) {
      throwSyntaxError("')' expected in function call.");
    }
    getNextToken();
  }
  //  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 void 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) {
    function_call();
    //    } else {
    //      base_variable();
    //    }
  }
  private void base_variable() {
    //  base_variable:
    //  		reference_variable
    //  	| simple_indirect_reference reference_variable
    //  	| static_member
    if (Scanner.TRACE) {
      System.out.println("TRACE: base_variable()");
    }
    if (token == TokenNameIdentifier) {
      static_member();
    } else {
      while (token == TokenNameDOLLAR) {
        getNextToken();
      }
      reference_variable();
    }
  }
  //  private void simple_indirect_reference() {
  //    // simple_indirect_reference:
  //    // '$'
  //    //| simple_indirect_reference '$'
  //  }
  private void reference_variable() {
    //  reference_variable:
    //  		reference_variable '[' dim_offset ']'
    //  	| reference_variable '{' expr '}'
    //  	| compound_variable
    if (Scanner.TRACE) {
      System.out.println("TRACE: reference_variable()");
    }
    compound_variable();
    while (true) {
      if (token == TokenNameLBRACE) {
        getNextToken();
        expr();
        if (token != TokenNameRBRACE) {
          throwSyntaxError("'}' expected in reference variable.");
        }
        getNextToken();
      } else if (token == TokenNameLBRACKET) {
        getNextToken();
        if (token != TokenNameRBRACKET) {
          expr();
          //        dim_offset();
          if (token != TokenNameRBRACKET) {
            throwSyntaxError("']' expected in reference variable.");
          }
        }
        getNextToken();
      } else {
        break;
      }
    }
  }
  private void compound_variable() {
    //  compound_variable:
    //  		T_VARIABLE
    //  	| '$' '{' expr '}'
    if (Scanner.TRACE) {
      System.out.println("TRACE: compound_variable()");
    }
    if (token == TokenNameVariable) {
      getNextToken();
    } else {
      // because of simple_indirect_reference
      while (token == TokenNameDOLLAR) {
        getNextToken();
      }
      if (token != TokenNameLBRACE) {
        throwSyntaxError("'{' expected after compound variable token '$'.");
      }
      getNextToken();
      expr();
      if (token != TokenNameRBRACE) {
        throwSyntaxError("'}' expected after compound variable token '$'.");
      }
      getNextToken();
    }
  }
  //  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 void variable() {
    //    variable:
    //		base_variable_with_function_calls T_OBJECT_OPERATOR
    //			object_property method_or_not variable_properties
    //	| base_variable_with_function_calls
    base_variable_with_function_calls();
    if (token == TokenNameMINUS_GREATER) {
      getNextToken();
      object_property();
      method_or_not();
      variable_properties();
    }
    //    if (token == TokenNameDOLLAR_LBRACE) {
    //      getNextToken();
    //      expr();
    //      ;
    //      if (token != TokenNameRBRACE) {
    //        throwSyntaxError("'}' expected after indirect variable token '${'.");
    //      }
    //      getNextToken();
    //    } else {
    //      if (token == TokenNameVariable) {
    //        getNextToken();
    //        if (token == TokenNameLBRACKET) {
    //          getNextToken();
    //          expr();
    //          if (token != TokenNameRBRACKET) {
    //            throwSyntaxError("']' expected in variable-list.");
    //          }
    //          getNextToken();
    //        } else if (token == TokenNameEQUAL) {
    //          getNextToken();
    //          static_scalar();
    //        }
    //      } else {
    //        throwSyntaxError("$-variable expected in variable-list.");
    //      }
    //    }
  }
  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 TokenNameCURLY_OPEN :
          encaps_var();
          break;
        //        case TokenNameDOLLAR :
        //          getNextToken();
        //          if (token == TokenNameLBRACE) {
        //            token = TokenNameDOLLAR_LBRACE;
        //            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();
          //          if (token == TokenNameRBRACKET) {
          //            getNextToken();
          //          } else {
          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 == TokenNameIdentifier) {
          getNextToken();
          if (token == TokenNameLBRACKET) {
            getNextToken();
            //            if (token == TokenNameRBRACKET) {
            //              getNextToken();
            //            } else {
            expr();
            if (token != TokenNameRBRACKET) {
              throwSyntaxError("']' expected after '${'.");
            }
            getNextToken();
            //            }
          }
          if (token != TokenNameRBRACE) {
            throwSyntaxError("'}' expected after '${'.");
          }
          //          scanner.encapsedStringStack.pop();
          getNextToken();
        } else {
          expr();
          if (token != TokenNameRBRACE) {
            throwSyntaxError("'}' expected.");
          }
          //          scanner.encapsedStringStack.pop();
          getNextToken();
        }
        break;
      case TokenNameCURLY_OPEN :
        getNextToken();
        if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
          getNextToken();
          if (token == TokenNameLBRACKET) {
            getNextToken();
            //            if (token == TokenNameRBRACKET) {
            //              getNextToken();
            //            } else {
            expr();
            if (token != TokenNameRBRACKET) {
              throwSyntaxError("']' expected after '{$'.");
            }
            getNextToken();
            //            }
          } else if (token == TokenNameMINUS_GREATER) {
            getNextToken();
            if (token != TokenNameIdentifier) {
              throwSyntaxError("String token expected.");
            }
            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;
    ImportReference impt = null;
    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
        start = scanner.getCurrentTokenStartPosition();
        getNextToken();
        expr();

        impt = new ImportReference(scanner.getCurrentTokenSource(start), start, scanner.getCurrentTokenEndPosition(), false);
        impt.declarationSourceEnd = impt.sourceEnd;
        impt.declarationEnd = impt.declarationSourceEnd;
        //endPosition is just before the ;
        impt.declarationSourceStart = start;
        includesList.add(impt);
        break;
      case TokenNameinclude_once :
        //	T_INCLUDE_ONCE expr
        start = scanner.getCurrentTokenStartPosition();
        getNextToken();
        expr();
        impt = new ImportReference(scanner.getCurrentTokenSource(start), start, scanner.getCurrentTokenEndPosition(), false);
        impt.declarationSourceEnd = impt.sourceEnd;
        impt.declarationEnd = impt.declarationSourceEnd;
        //endPosition is just before the ;
        impt.declarationSourceStart = start;
        includesList.add(impt);
        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
        start = scanner.getCurrentTokenStartPosition();
        getNextToken();
        expr();
        impt = new ImportReference(scanner.getCurrentTokenSource(start), start, scanner.getCurrentTokenEndPosition(), false);
        impt.declarationSourceEnd = impt.sourceEnd;
        impt.declarationEnd = impt.declarationSourceEnd;
        //endPosition is just before the ;
        impt.declarationSourceStart = start;
        includesList.add(impt);
        break;
      case TokenNamerequire_once :
        //	T_REQUIRE_ONCE expr
        start = scanner.getCurrentTokenStartPosition();
        getNextToken();
        expr();
        impt = new ImportReference(scanner.getCurrentTokenSource(start), start, scanner.getCurrentTokenEndPosition(), false);
        impt.declarationSourceEnd = impt.sourceEnd;
        impt.declarationEnd = impt.declarationSourceEnd;
        //endPosition is just before the ;
        impt.declarationSourceStart = start;
        includesList.add(impt);
        break;
    }
  }
  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("')' 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;
  //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;
  }
}