Package org.apache.harmony.x.swing.text.rtf

Source Code of org.apache.harmony.x.swing.text.rtf.RTFParser$LookaheadSuccess

/* Generated By:JavaCC: Do not edit this line. RTFParser.java */
package org.apache.harmony.x.swing.text.rtf;

import java.io.*;
import java.util.Stack;
import javax.swing.text.DefaultStyledDocument;

public class RTFParser implements RTFParserConstants {

  private RTFHandler handler;

  private String encoding = RTFEncodings.DEFAULT_ENCODING;

  private int ucValue = 1;
  /**
   * This stack contains only UC values as a scope parameter.
   * It could be modified to contain additional parameters.
   */
  private Stack scopeStack = new Stack();

  public static void main(String args[]) throws Exception {
    InputStream in;

    if (args.length > 0)
      in = new FileInputStream(args[0]);
    else
      in = System.in;

    RTFParser parser = new RTFParser(in);
    RTFHandler handler = new DocumentRTFHandler(new DefaultStyledDocument(), 0);
    parser.parse(handler);
  }

  private byte[] getBytes(String str) {
    char[] chars = str.toCharArray();
    byte[] bytes = new byte[chars.length];
    for (int i = 0; i < chars.length; i++)
      bytes[i] = (byte) chars[i];
    return bytes;
  }

  final public void parse(RTFHandler handler) throws ParseException {
    if (handler == null)
      {if (true) throw new NullPointerException("Parameter handler cannot be null");}
    this.handler = handler;
    file();
    jj_consume_token(0);
  }

  final private int parameter() throws ParseException {
  Token param = null;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case PARAM:
      param = jj_consume_token(PARAM);
      break;
    default:
      jj_la1[0] = jj_gen;
      ;
    }
    {if (true) return param == null ? -1 : Integer.parseInt(param.image.trim());}
    throw new Error("Missing return statement in function");
  }

  final private void unknownControlWord() throws ParseException {
    jj_consume_token(CONTROL_WORD);
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case PARAM:
      jj_consume_token(PARAM);
      break;
    default:
      jj_la1[1] = jj_gen;
      ;
    }
  }

/**
* Catches all unhandled control symbols.
*/
  final public void unknownControlSymbol() throws ParseException {
    jj_consume_token(CONTROL_SYMBOL);
  }

/**
* Group which starts with "{\*" and describes destination, currently this part
* is ignored.
*/
  final public void ignoredDestination() throws ParseException {
    jj_consume_token(OPEN_BRACE);
    jj_consume_token(IGNORED_DESTINATION);
    ignoredBlock();
    jj_consume_token(CLOSE_BRACE);
  }

  final public String parseText() throws ParseException {
  byte[] bytes;
  String text;
  ByteArrayOutputStream textBytes = new ByteArrayOutputStream();
  StringBuffer parsedText = new StringBuffer();
    label_1:
    while (true) {
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case HEX_CHAR:
      case TEXT:
        label_2:
        while (true) {
          switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
          case HEX_CHAR:
            bytes = parseHexBytes();
            break;
          case TEXT:
            bytes = parseTextBytes();
            break;
          default:
            jj_la1[2] = jj_gen;
            jj_consume_token(-1);
            throw new ParseException();
          }
          try {
            textBytes.write(bytes);
          } catch (IOException e) {}
          switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
          case HEX_CHAR:
          case TEXT:
            ;
            break;
          default:
            jj_la1[3] = jj_gen;
            break label_2;
          }
        }
      // Decoding collected characters using specified encoding
      try {
        parsedText.append(textBytes.toString(encoding));
        textBytes.reset();
      }
      catch (UnsupportedEncodingException e) {
        {if (true) throw new ParseException("Unsupported encoding");}
      }
        break;
      case ESCAPED_OPEN_BRACE:
      case ESCAPED_CLOSE_BRACE:
      case ESCAPED_BACKSLASH:
      case U:
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case ESCAPED_OPEN_BRACE:
        case ESCAPED_CLOSE_BRACE:
        case ESCAPED_BACKSLASH:
          text = parseSpecialCharacter();
          break;
        case U:
          text = parseUnicodeText();
          break;
        default:
          jj_la1[4] = jj_gen;
          jj_consume_token(-1);
          throw new ParseException();
        }
        parsedText.append(text);
        break;
      default:
        jj_la1[5] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case ESCAPED_OPEN_BRACE:
      case ESCAPED_CLOSE_BRACE:
      case ESCAPED_BACKSLASH:
      case HEX_CHAR:
      case TEXT:
      case U:
        ;
        break;
      default:
        jj_la1[6] = jj_gen;
        break label_1;
      }
    }
    {if (true) return parsedText.toString();}
    throw new Error("Missing return statement in function");
  }

  final public byte[] parseHexBytes() throws ParseException {
  Token token;
  byte[] result = new byte[1];
    token = jj_consume_token(HEX_CHAR);
    result[0] = (byte) Integer.parseInt(token.image.substring(2), 16);
    {if (true) return result;}
    throw new Error("Missing return statement in function");
  }

  final public byte[] parseTextBytes() throws ParseException {
  Token token;
    token = jj_consume_token(TEXT);
    {if (true) return getBytes(token.image);}
    throw new Error("Missing return statement in function");
  }

  final public String parseSpecialCharacter() throws ParseException {
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case ESCAPED_OPEN_BRACE:
      jj_consume_token(ESCAPED_OPEN_BRACE);
                          {if (true) return "{";}
      break;
    case ESCAPED_CLOSE_BRACE:
      jj_consume_token(ESCAPED_CLOSE_BRACE);
                          {if (true) return "}";}
      break;
    case ESCAPED_BACKSLASH:
      jj_consume_token(ESCAPED_BACKSLASH);
                          {if (true) return "\\";}
      break;
    default:
      jj_la1[7] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public String parseUnicodeText() throws ParseException {
  int param;
  StringBuffer unicodeBuffer = new StringBuffer();
    label_3:
    while (true) {
      jj_consume_token(U);
      param = parameter();
      if (param < 0)
        param += 65536;

      unicodeBuffer.append((char) param);
      skipAfterUnicode(ucValue);
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case U:
        ;
        break;
      default:
        jj_la1[8] = jj_gen;
        break label_3;
      }
    }
    {if (true) return unicodeBuffer.toString();}
    throw new Error("Missing return statement in function");
  }

  final public void file() throws ParseException {
    jj_consume_token(OPEN_BRACE);
    jj_consume_token(RTF);
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case PARAM:
      jj_consume_token(PARAM);
      break;
    default:
      jj_la1[9] = jj_gen;
      ;
    }
    document();
    jj_consume_token(CLOSE_BRACE);
  }

  final public void document() throws ParseException {
  boolean skipped;
  String text;
    label_4:
    while (true) {
      if (jj_2_1(2)) {
        header();
      } else {
        switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
        case B:
        case I:
        case UL:
        case PAR:
          paragraph();
          break;
        default:
          jj_la1[10] = jj_gen;
          if (jj_2_2(2147483647)) {
            info();
          } else if (jj_2_3(2147483647)) {
            ignoredDestination();
          } else {
            switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
            case OPEN_BRACE:
              documentGroup();
              break;
            case CONTROL_WORD:
              unknownControlWord();
              break;
            case CONTROL_SYMBOL:
              unknownControlSymbol();
              break;
            case ESCAPED_OPEN_BRACE:
            case ESCAPED_CLOSE_BRACE:
            case ESCAPED_BACKSLASH:
            case HEX_CHAR:
            case TEXT:
            case U:
              text = parseText();
                         handler.addText(text);
              break;
            default:
              jj_la1[11] = jj_gen;
              skipped = handleUnexpectedControlWord();
                                              if (!skipped) {if (true) return;}
            }
          }
        }
      }
      ;
    }
  }

/**
* A group.
*/
  final public void documentGroup() throws ParseException {
    startGroup();
    document();
    endGroup();
  }

  final public void startGroup() throws ParseException {
    jj_consume_token(OPEN_BRACE);
    scopeStack.push(ucValue);
    handler.startGroup();
  }

  final public void endGroup() throws ParseException {
    jj_consume_token(CLOSE_BRACE);
    ucValue = (Integer) scopeStack.pop();
    handler.endGroup();
  }

  final public void header() throws ParseException {
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case ANSI:
    case MAC:
    case PC:
    case PCA:
    case ANSICPG:
      characterSet();
      break;
    default:
      jj_la1[12] = jj_gen;
      if (jj_2_4(2147483647)) {
        fonttbl();
      } else if (jj_2_5(2147483647)) {
        colortbl();
      } else if (jj_2_6(2147483647)) {
        stylesheet();
      } else {
        jj_consume_token(-1);
        throw new ParseException();
      }
    }
  }

  final public void characterSet() throws ParseException {
  int param;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case ANSI:
      jj_consume_token(ANSI);
              encoding = "Cp1252";
      break;
    case MAC:
      jj_consume_token(MAC);
              encoding = "MacRoman";
      break;
    case PC:
      jj_consume_token(PC);
              encoding = "Cp437";
      break;
    case PCA:
      jj_consume_token(PCA);
              encoding = "Cp850";
      break;
    case ANSICPG:
      jj_consume_token(ANSICPG);
      param = parameter();
    encoding = RTFEncodings.getEncoding(param);
      break;
    default:
      jj_la1[13] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
  }

/**
* Part which describes font table group.
*/
  final public void fonttbl() throws ParseException {
    jj_consume_token(OPEN_BRACE);
    jj_consume_token(FONTTBL);
    ignoredBlock();
    jj_consume_token(CLOSE_BRACE);
  }

/**
* Part which describes color table group.
*/
  final public void colortbl() throws ParseException {
    jj_consume_token(OPEN_BRACE);
    jj_consume_token(COLORTBL);
    ignoredBlock();
    jj_consume_token(CLOSE_BRACE);
  }

/**
* Part which describes the style sheet group.
*/
  final public void stylesheet() throws ParseException {
    jj_consume_token(OPEN_BRACE);
    jj_consume_token(STYLESHEET);
    ignoredBlock();
    jj_consume_token(CLOSE_BRACE);
  }

/**
* Part which describes the information group inside document area.
*/
  final public void info() throws ParseException {
    jj_consume_token(OPEN_BRACE);
    jj_consume_token(INFO);
    ignoredBlock();
    jj_consume_token(CLOSE_BRACE);
  }

  final public void paragraph() throws ParseException {
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case B:
    case I:
    case UL:
      characterFormat();
      break;
    case PAR:
      jj_consume_token(PAR);
          handler.newParagraph();
      break;
    default:
      jj_la1[14] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
  }

  final public void characterFormat() throws ParseException {
  int param;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case B:
      jj_consume_token(B);
      param = parameter();
                            handler.setBold(param != 0);
      break;
    case I:
      jj_consume_token(I);
      param = parameter();
                            handler.setItalic(param != 0);
      break;
    case UL:
      jj_consume_token(UL);
      param = parameter();
                             handler.setUnderline(param != 0);
      break;
    default:
      jj_la1[15] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
  }

  private void ignoredBlock() throws ParseException {
  Token token;
  int nesting = 1;
  while (true) {
    token = getToken(1);
    if (token.kind == OPEN_BRACE)
      nesting++;
    else if (token.kind == CLOSE_BRACE) {
      nesting--;
      if (nesting == 0)
        return;
    }
    getNextToken();
  }
  }

  private boolean handleUnexpectedControlWord() throws ParseException {
  Token token = getToken(1);

  if (token.kind == UC) {
    getNextToken();
    token = getToken(1);
    if (token.kind == PARAM) {
      ucValue = Integer.parseInt(token.image);
      getNextToken();
    }
    return true;
  }

  String text = token.image;
  if (text.matches("\\\\[a-zA-Z]+")) {
    getNextToken();
    token = getToken(1);
    if (token.kind == PARAM)
      getNextToken();
    return true;
  }

  return false;
  }

  private void skipAfterUnicode(int n) throws ParseException {
  while (n-- > 0) {
    Token token = getToken(1);
    // If token is a control word or a control symbol
    if (token.image.startsWith("\\")) {
      getNextToken();
      token = getToken(1);
      // If control word has parameter
      if (token.kind == PARAM)
        getNextToken();
      //TODO: Need to skip \bin data
    }
    else if (token.kind == HEX_CHAR)
      getNextToken();
    else if (token.kind == TEXT) {
      String text = token.image;
      if (text.length() <= n + 1) {
        n -= text.length() - 1;
        getNextToken();
      }
      else {
        token.image = text.substring(n + 1);
        return;
      }
    }
    else throw new ParseException("Wrong token " + token + " while skipping data after Unicode character");
  }
  }

  final private boolean jj_2_1(int xla) {
    jj_la = xla; jj_lastpos = jj_scanpos = token;
    try { return !jj_3_1(); }
    catch(LookaheadSuccess ls) { return true; }
    finally { jj_save(0, xla); }
  }

  final private boolean jj_2_2(int xla) {
    jj_la = xla; jj_lastpos = jj_scanpos = token;
    try { return !jj_3_2(); }
    catch(LookaheadSuccess ls) { return true; }
    finally { jj_save(1, xla); }
  }

  final private boolean jj_2_3(int xla) {
    jj_la = xla; jj_lastpos = jj_scanpos = token;
    try { return !jj_3_3(); }
    catch(LookaheadSuccess ls) { return true; }
    finally { jj_save(2, xla); }
  }

  final private boolean jj_2_4(int xla) {
    jj_la = xla; jj_lastpos = jj_scanpos = token;
    try { return !jj_3_4(); }
    catch(LookaheadSuccess ls) { return true; }
    finally { jj_save(3, xla); }
  }

  final private boolean jj_2_5(int xla) {
    jj_la = xla; jj_lastpos = jj_scanpos = token;
    try { return !jj_3_5(); }
    catch(LookaheadSuccess ls) { return true; }
    finally { jj_save(4, xla); }
  }

  final private boolean jj_2_6(int xla) {
    jj_la = xla; jj_lastpos = jj_scanpos = token;
    try { return !jj_3_6(); }
    catch(LookaheadSuccess ls) { return true; }
    finally { jj_save(5, xla); }
  }

  final private boolean jj_3R_18() {
    if (jj_scan_token(ANSICPG)) return true;
    if (jj_3R_19()) return true;
    return false;
  }

  final private boolean jj_3R_17() {
    if (jj_scan_token(PCA)) return true;
    return false;
  }

  final private boolean jj_3_3() {
    if (jj_scan_token(OPEN_BRACE)) return true;
    if (jj_scan_token(IGNORED_DESTINATION)) return true;
    return false;
  }

  final private boolean jj_3R_16() {
    if (jj_scan_token(PC)) return true;
    return false;
  }

  final private boolean jj_3_2() {
    if (jj_scan_token(OPEN_BRACE)) return true;
    if (jj_scan_token(INFO)) return true;
    return false;
  }

  final private boolean jj_3_6() {
    if (jj_scan_token(OPEN_BRACE)) return true;
    if (jj_scan_token(STYLESHEET)) return true;
    return false;
  }

  final private boolean jj_3R_15() {
    if (jj_scan_token(MAC)) return true;
    return false;
  }

  final private boolean jj_3R_10() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_14()) {
    jj_scanpos = xsp;
    if (jj_3R_15()) {
    jj_scanpos = xsp;
    if (jj_3R_16()) {
    jj_scanpos = xsp;
    if (jj_3R_17()) {
    jj_scanpos = xsp;
    if (jj_3R_18()) return true;
    }
    }
    }
    }
    return false;
  }

  final private boolean jj_3R_14() {
    if (jj_scan_token(ANSI)) return true;
    return false;
  }

  final private boolean jj_3_5() {
    if (jj_scan_token(OPEN_BRACE)) return true;
    if (jj_scan_token(COLORTBL)) return true;
    return false;
  }

  final private boolean jj_3_4() {
    if (jj_scan_token(OPEN_BRACE)) return true;
    if (jj_scan_token(FONTTBL)) return true;
    return false;
  }

  final private boolean jj_3R_9() {
    if (jj_3R_13()) return true;
    return false;
  }

  final private boolean jj_3R_19() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_scan_token(38)) jj_scanpos = xsp;
    return false;
  }

  final private boolean jj_3R_8() {
    if (jj_3R_12()) return true;
    return false;
  }

  final private boolean jj_3_1() {
    if (jj_3R_5()) return true;
    return false;
  }

  final private boolean jj_3R_7() {
    if (jj_3R_11()) return true;
    return false;
  }

  final private boolean jj_3R_13() {
    if (jj_scan_token(OPEN_BRACE)) return true;
    if (jj_scan_token(STYLESHEET)) return true;
    return false;
  }

  final private boolean jj_3R_6() {
    if (jj_3R_10()) return true;
    return false;
  }

  final private boolean jj_3R_5() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_6()) {
    jj_scanpos = xsp;
    if (jj_3R_7()) {
    jj_scanpos = xsp;
    if (jj_3R_8()) {
    jj_scanpos = xsp;
    if (jj_3R_9()) return true;
    }
    }
    }
    return false;
  }

  final private boolean jj_3R_12() {
    if (jj_scan_token(OPEN_BRACE)) return true;
    if (jj_scan_token(COLORTBL)) return true;
    return false;
  }

  final private boolean jj_3R_11() {
    if (jj_scan_token(OPEN_BRACE)) return true;
    if (jj_scan_token(FONTTBL)) return true;
    return false;
  }

  public RTFParserTokenManager token_source;
  SimpleCharStream jj_input_stream;
  public Token token, jj_nt;
  private int jj_ntk;
  private Token jj_scanpos, jj_lastpos;
  private int jj_la;
  public boolean lookingAhead = false;
  private boolean jj_semLA;
  private int jj_gen;
  final private int[] jj_la1 = new int[16];
  static private int[] jj_la1_0;
  static private int[] jj_la1_1;
  static {
      jj_la1_0();
      jj_la1_1();
   }
   private static void jj_la1_0() {
      jj_la1_0 = new int[] {0x0,0x0,0x4400,0x4400,0x40000e0,0x40044e0,0x40044e0,0xe0,0x4000000,0x0,0x0,0x40055e0,0x1f00000,0x1f00000,0x0,0x0,};
   }
   private static void jj_la1_1() {
      jj_la1_1 = new int[] {0x40,0x40,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x40,0x1e,0x20,0x0,0x0,0x1e,0xe,};
   }
  final private JJCalls[] jj_2_rtns = new JJCalls[6];
  private boolean jj_rescan = false;
  private int jj_gc = 0;

  public RTFParser(java.io.InputStream stream) {
     this(stream, null);
  }
  public RTFParser(java.io.InputStream stream, String encoding) {
    try { jj_input_stream = new SimpleCharStream(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
    token_source = new RTFParserTokenManager(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 16; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  public void ReInit(java.io.InputStream stream) {
     ReInit(stream, null);
  }
  public void ReInit(java.io.InputStream stream, String encoding) {
    try { jj_input_stream.ReInit(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
    token_source.ReInit(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 16; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  public RTFParser(java.io.Reader stream) {
    jj_input_stream = new SimpleCharStream(stream, 1, 1);
    token_source = new RTFParserTokenManager(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 16; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  public void ReInit(java.io.Reader stream) {
    jj_input_stream.ReInit(stream, 1, 1);
    token_source.ReInit(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 16; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  public RTFParser(RTFParserTokenManager tm) {
    token_source = tm;
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 16; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  public void ReInit(RTFParserTokenManager tm) {
    token_source = tm;
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 16; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  final private Token jj_consume_token(int kind) throws ParseException {
    Token oldToken;
    if ((oldToken = token).next != null) token = token.next;
    else token = token.next = token_source.getNextToken();
    jj_ntk = -1;
    if (token.kind == kind) {
      jj_gen++;
      if (++jj_gc > 100) {
        jj_gc = 0;
        for (int i = 0; i < jj_2_rtns.length; i++) {
          JJCalls c = jj_2_rtns[i];
          while (c != null) {
            if (c.gen < jj_gen) c.first = null;
            c = c.next;
          }
        }
      }
      return token;
    }
    token = oldToken;
    jj_kind = kind;
    throw generateParseException();
  }

  static private final class LookaheadSuccess extends java.lang.Error { }
  final private LookaheadSuccess jj_ls = new LookaheadSuccess();
  final private boolean jj_scan_token(int kind) {
    if (jj_scanpos == jj_lastpos) {
      jj_la--;
      if (jj_scanpos.next == null) {
        jj_lastpos = jj_scanpos = jj_scanpos.next = token_source.getNextToken();
      } else {
        jj_lastpos = jj_scanpos = jj_scanpos.next;
      }
    } else {
      jj_scanpos = jj_scanpos.next;
    }
    if (jj_rescan) {
      int i = 0; Token tok = token;
      while (tok != null && tok != jj_scanpos) { i++; tok = tok.next; }
      if (tok != null) jj_add_error_token(kind, i);
    }
    if (jj_scanpos.kind != kind) return true;
    if (jj_la == 0 && jj_scanpos == jj_lastpos) throw jj_ls;
    return false;
  }

  final public Token getNextToken() {
    if (token.next != null) token = token.next;
    else token = token.next = token_source.getNextToken();
    jj_ntk = -1;
    jj_gen++;
    return token;
  }

  final public Token getToken(int index) {
    Token t = lookingAhead ? jj_scanpos : token;
    for (int i = 0; i < index; i++) {
      if (t.next != null) t = t.next;
      else t = t.next = token_source.getNextToken();
    }
    return t;
  }

  final private int jj_ntk() {
    if ((jj_nt=token.next) == null)
      return (jj_ntk = (token.next=token_source.getNextToken()).kind);
    else
      return (jj_ntk = jj_nt.kind);
  }

  private java.util.Vector jj_expentries = new java.util.Vector();
  private int[] jj_expentry;
  private int jj_kind = -1;
  private int[] jj_lasttokens = new int[100];
  private int jj_endpos;

  private void jj_add_error_token(int kind, int pos) {
    if (pos >= 100) return;
    if (pos == jj_endpos + 1) {
      jj_lasttokens[jj_endpos++] = kind;
    } else if (jj_endpos != 0) {
      jj_expentry = new int[jj_endpos];
      for (int i = 0; i < jj_endpos; i++) {
        jj_expentry[i] = jj_lasttokens[i];
      }
      boolean exists = false;
      for (java.util.Enumeration e = jj_expentries.elements(); e.hasMoreElements();) {
        int[] oldentry = (int[])(e.nextElement());
        if (oldentry.length == jj_expentry.length) {
          exists = true;
          for (int i = 0; i < jj_expentry.length; i++) {
            if (oldentry[i] != jj_expentry[i]) {
              exists = false;
              break;
            }
          }
          if (exists) break;
        }
      }
      if (!exists) jj_expentries.addElement(jj_expentry);
      if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
    }
  }

  public ParseException generateParseException() {
    jj_expentries.removeAllElements();
    boolean[] la1tokens = new boolean[40];
    for (int i = 0; i < 40; i++) {
      la1tokens[i] = false;
    }
    if (jj_kind >= 0) {
      la1tokens[jj_kind] = true;
      jj_kind = -1;
    }
    for (int i = 0; i < 16; i++) {
      if (jj_la1[i] == jj_gen) {
        for (int j = 0; j < 32; j++) {
          if ((jj_la1_0[i] & (1<<j)) != 0) {
            la1tokens[j] = true;
          }
          if ((jj_la1_1[i] & (1<<j)) != 0) {
            la1tokens[32+j] = true;
          }
        }
      }
    }
    for (int i = 0; i < 40; i++) {
      if (la1tokens[i]) {
        jj_expentry = new int[1];
        jj_expentry[0] = i;
        jj_expentries.addElement(jj_expentry);
      }
    }
    jj_endpos = 0;
    jj_rescan_token();
    jj_add_error_token(0, 0);
    int[][] exptokseq = new int[jj_expentries.size()][];
    for (int i = 0; i < jj_expentries.size(); i++) {
      exptokseq[i] = (int[])jj_expentries.elementAt(i);
    }
    return new ParseException(token, exptokseq, tokenImage);
  }

  final public void enable_tracing() {
  }

  final public void disable_tracing() {
  }

  final private void jj_rescan_token() {
    jj_rescan = true;
    for (int i = 0; i < 6; i++) {
    try {
      JJCalls p = jj_2_rtns[i];
      do {
        if (p.gen > jj_gen) {
          jj_la = p.arg; jj_lastpos = jj_scanpos = p.first;
          switch (i) {
            case 0: jj_3_1(); break;
            case 1: jj_3_2(); break;
            case 2: jj_3_3(); break;
            case 3: jj_3_4(); break;
            case 4: jj_3_5(); break;
            case 5: jj_3_6(); break;
          }
        }
        p = p.next;
      } while (p != null);
      } catch(LookaheadSuccess ls) { }
    }
    jj_rescan = false;
  }

  final private void jj_save(int index, int xla) {
    JJCalls p = jj_2_rtns[index];
    while (p.gen > jj_gen) {
      if (p.next == null) { p = p.next = new JJCalls(); break; }
      p = p.next;
    }
    p.gen = jj_gen + xla - jj_la; p.first = token; p.arg = xla;
  }

  static final class JJCalls {
    int gen;
    Token first;
    int arg;
    JJCalls next;
  }

}
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