/* The following code was generated by JFlex 1.4.1 on 11/6/05 1:57 AM */

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * This file is part of Beaver Parser Generator.                       *
 * Copyright (C) 2003,2005 Alexander Demenchuk <alder@softanvil.com>.  *
 * All rights reserved.                                                *
 * See the file "LICENSE" for the terms and conditions for copying,    *
 * distribution and modification of Beaver.                            *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

package beaver.spec.parser;

import beaver.Symbol;
import beaver.Scanner;
import beaver.spec.parser.GrammarParser.Terminals;


/**
 * This class is a scanner generated by 
 * <a href="http://www.jflex.de/">JFlex</a> 1.4.1
 * on 11/6/05 1:57 AM from the specification file
 * <tt>C:/Documents and Settings/ademenchuk/workspace/Beaver 0.9/etc/GrammarScanner.flex</tt>
 */
public class GrammarScanner extends Scanner {

  /** This character denotes the end of file */
  public static final int YYEOF = -1;

  /** initial size of the lookahead buffer */
  private static final int ZZ_BUFFERSIZE = 16384;

  /** lexical states */
  public static final int CODE = 1;
  public static final int EOL_COMMENT = 4;
  public static final int EOF_MLN_COMMENT = 7;
  public static final int EOF_CODE = 6;
  public static final int CODE_END = 5;
  public static final int MLN_COMMENT = 3;
  public static final int YYINITIAL = 0;
  public static final int EOF_EOL_COMMENT = 8;
  public static final int TEXT = 2;

  /** 
   * Translates characters to character classes
   */
  private static final String ZZ_CMAP_PACKED = 
    "\11\0\1\3\1\2\1\0\1\3\1\1\22\0\1\3\1\0\1\6"+
    "\2\0\1\7\4\0\1\43\1\42\1\33\1\0\1\37\1\46\12\5"+
    "\1\45\1\35\1\0\1\34\1\0\1\41\1\36\32\4\4\0\1\5"+
    "\1\0\1\12\1\27\1\16\1\13\1\11\1\32\1\20\1\10\1\21"+
    "\1\4\1\17\1\25\1\22\1\30\1\23\1\15\1\4\1\14\1\26"+
    "\1\24\4\4\1\31\1\4\1\44\1\40\1\47\54\0\1\4\12\0"+
    "\1\4\4\0\1\4\5\0\27\4\1\0\37\4\1\0\u013f\4\31\0"+
    "\162\4\4\0\14\4\16\0\5\4\11\0\1\4\213\0\1\4\13\0"+
    "\1\4\1\0\3\4\1\0\1\4\1\0\24\4\1\0\54\4\1\0"+
    "\46\4\1\0\5\4\4\0\202\4\10\0\105\4\1\0\46\4\2\0"+
    "\2\4\6\0\20\4\41\0\46\4\2\0\1\4\7\0\47\4\110\0"+
    "\33\4\5\0\3\4\56\0\32\4\5\0\13\4\25\0\12\5\4\0"+
    "\2\4\1\0\143\4\1\0\1\4\17\0\2\4\7\0\2\4\12\5"+
    "\3\4\2\0\1\4\20\0\1\4\1\0\36\4\35\0\3\4\60\0"+
    "\46\4\13\0\1\4\u0152\0\66\4\3\0\1\4\22\0\1\4\7\0"+
    "\12\4\4\0\12\5\25\0\10\4\2\0\2\4\2\0\26\4\1\0"+
    "\7\4\1\0\1\4\3\0\4\4\3\0\1\4\36\0\2\4\1\0"+
    "\3\4\4\0\12\5\2\4\23\0\6\4\4\0\2\4\2\0\26\4"+
    "\1\0\7\4\1\0\2\4\1\0\2\4\1\0\2\4\37\0\4\4"+
    "\1\0\1\4\7\0\12\5\2\0\3\4\20\0\11\4\1\0\3\4"+
    "\1\0\26\4\1\0\7\4\1\0\2\4\1\0\5\4\3\0\1\4"+
    "\22\0\1\4\17\0\2\4\4\0\12\5\25\0\10\4\2\0\2\4"+
    "\2\0\26\4\1\0\7\4\1\0\2\4\1\0\5\4\3\0\1\4"+
    "\36\0\2\4\1\0\3\4\4\0\12\5\1\0\1\4\21\0\1\4"+
    "\1\0\6\4\3\0\3\4\1\0\4\4\3\0\2\4\1\0\1\4"+
    "\1\0\2\4\3\0\2\4\3\0\3\4\3\0\10\4\1\0\3\4"+
    "\55\0\11\5\25\0\10\4\1\0\3\4\1\0\27\4\1\0\12\4"+
    "\1\0\5\4\46\0\2\4\4\0\12\5\25\0\10\4\1\0\3\4"+
    "\1\0\27\4\1\0\12\4\1\0\5\4\3\0\1\4\40\0\1\4"+
    "\1\0\2\4\4\0\12\5\25\0\10\4\1\0\3\4\1\0\27\4"+
    "\1\0\20\4\46\0\2\4\4\0\12\5\25\0\22\4\3\0\30\4"+
    "\1\0\11\4\1\0\1\4\2\0\7\4\72\0\60\4\1\0\2\4"+
    "\14\0\7\4\11\0\12\5\47\0\2\4\1\0\1\4\2\0\2\4"+
    "\1\0\1\4\2\0\1\4\6\0\4\4\1\0\7\4\1\0\3\4"+
    "\1\0\1\4\1\0\1\4\2\0\2\4\1\0\4\4\1\0\2\4"+
    "\11\0\1\4\2\0\5\4\1\0\1\4\11\0\12\5\2\0\2\4"+
    "\42\0\1\4\37\0\12\5\26\0\10\4\1\0\42\4\35\0\4\4"+
    "\164\0\42\4\1\0\5\4\1\0\2\4\25\0\12\5\6\0\6\4"+
    "\112\0\46\4\12\0\51\4\7\0\132\4\5\0\104\4\5\0\122\4"+
    "\6\0\7\4\1\0\77\4\1\0\1\4\1\0\4\4\2\0\7\4"+
    "\1\0\1\4\1\0\4\4\2\0\47\4\1\0\1\4\1\0\4\4"+
    "\2\0\37\4\1\0\1\4\1\0\4\4\2\0\7\4\1\0\1\4"+
    "\1\0\4\4\2\0\7\4\1\0\7\4\1\0\27\4\1\0\37\4"+
    "\1\0\1\4\1\0\4\4\2\0\7\4\1\0\47\4\1\0\23\4"+
    "\16\0\11\5\56\0\125\4\14\0\u026c\4\2\0\10\4\12\0\32\4"+
    "\5\0\113\4\25\0\15\4\1\0\4\4\16\0\22\4\16\0\22\4"+
    "\16\0\15\4\1\0\3\4\17\0\64\4\43\0\1\4\4\0\1\4"+
    "\3\0\12\5\46\0\12\5\6\0\130\4\10\0\51\4\127\0\35\4"+
    "\51\0\12\5\36\4\2\0\5\4\u038b\0\154\4\224\0\234\4\4\0"+
    "\132\4\6\0\26\4\2\0\6\4\2\0\46\4\2\0\6\4\2\0"+
    "\10\4\1\0\1\4\1\0\1\4\1\0\1\4\1\0\37\4\2\0"+
    "\65\4\1\0\7\4\1\0\1\4\3\0\3\4\1\0\7\4\3\0"+
    "\4\4\2\0\6\4\4\0\15\4\5\0\3\4\1\0\7\4\164\0"+
    "\1\4\15\0\1\4\202\0\1\4\4\0\1\4\2\0\12\4\1\0"+
    "\1\4\3\0\5\4\6\0\1\4\1\0\1\4\1\0\1\4\1\0"+
    "\4\4\1\0\3\4\1\0\7\4\3\0\3\4\5\0\5\4\u0ebb\0"+
    "\2\4\52\0\5\4\5\0\2\4\4\0\126\4\6\0\3\4\1\0"+
    "\132\4\1\0\4\4\5\0\50\4\4\0\136\4\21\0\30\4\70\0"+
    "\20\4\u0200\0\u19b6\4\112\0\u51a6\4\132\0\u048d\4\u0773\0\u2ba4\4\u215c\0"+
    "\u012e\4\2\0\73\4\225\0\7\4\14\0\5\4\5\0\1\4\1\0"+
    "\12\4\1\0\15\4\1\0\5\4\1\0\1\4\1\0\2\4\1\0"+
    "\2\4\1\0\154\4\41\0\u016b\4\22\0\100\4\2\0\66\4\50\0"+
    "\14\4\164\0\5\4\1\0\207\4\23\0\12\5\7\0\32\4\6\0"+
    "\32\4\13\0\131\4\3\0\6\4\2\0\6\4\2\0\6\4\2\0"+
    "\3\4\43\0";

  /** 
   * Translates characters to character classes
   */
  private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED);

  /** 
   * Translates DFA states to action switch labels.
   */
  private static final int [] ZZ_ACTION = zzUnpackAction();

  private static final String ZZ_ACTION_PACKED_0 =
    "\1\0\1\1\1\2\1\3\1\4\1\1\1\5\1\6"+
    "\1\7\1\10\2\11\1\12\1\13\1\10\1\14\1\15"+
    "\1\16\1\17\1\20\1\21\1\22\1\23\1\24\2\10"+
    "\2\1\1\25\1\2\1\26\2\3\1\4\2\7\2\1"+
    "\12\0\1\27\1\30\1\31\2\0\1\32\3\0\1\33"+
    "\35\0\1\34\1\0\1\35\2\0\1\36\2\0\1\37"+
    "\1\40\1\0\1\41\4\0\1\42\1\0\1\43\1\0"+
    "\1\44\1\0\1\45\3\0\1\46\1\47";

  private static int [] zzUnpackAction() {
    int [] result = new int[115];
    int offset = 0;
    offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackAction(String packed, int offset, int [] result) {
    int i = 0;       /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int count = packed.charAt(i++);
      int value = packed.charAt(i++);
      do result[j++] = value; while (--count > 0);
    }
    return j;
  }


  /** 
   * Translates a state to a row index in the transition table
   */
  private static final int [] ZZ_ROWMAP = zzUnpackRowMap();

  private static final String ZZ_ROWMAP_PACKED_0 =
    "\0\0\0\50\0\120\0\170\0\240\0\310\0\360\0\u0118"+
    "\0\u0140\0\u0168\0\u0190\0\u0168\0\u01b8\0\u0168\0\u01e0\0\u0168"+
    "\0\u0168\0\u0168\0\u0168\0\u0168\0\u0168\0\u0168\0\u0168\0\u0168"+
    "\0\u0208\0\u0230\0\u0258\0\u0280\0\u02a8\0\u0168\0\u0168\0\u02d0"+
    "\0\u02f8\0\u0320\0\u0348\0\u0168\0\u0168\0\u0370\0\u0398\0\u03c0"+
    "\0\u03e8\0\u0410\0\u0438\0\u0460\0\u0488\0\u04b0\0\u04d8\0\u0500"+
    "\0\u0168\0\u0168\0\u0168\0\u0258\0\u0280\0\u0168\0\u02d0\0\u02f8"+
    "\0\u0320\0\u0168\0\u0528\0\u0550\0\u0578\0\u05a0\0\u05c8\0\u05f0"+
    "\0\u0618\0\u0640\0\u0668\0\u0690\0\u06b8\0\u06e0\0\u0708\0\u0730"+
    "\0\u0758\0\u0780\0\u07a8\0\u07d0\0\u07f8\0\u0820\0\u0848\0\u0870"+
    "\0\u0898\0\u08c0\0\u08e8\0\u0910\0\u0938\0\u0960\0\u0988\0\u0168"+
    "\0\u09b0\0\u0168\0\u09d8\0\u0a00\0\u0168\0\u0a28\0\u0a50\0\u0168"+
    "\0\u0168\0\u0a78\0\u0168\0\u0aa0\0\u0ac8\0\u0af0\0\u0b18\0\u0168"+
    "\0\u0b40\0\u0168\0\u0b68\0\u0168\0\u0b90\0\u0168\0\u0bb8\0\u0be0"+
    "\0\u0c08\0\u0168\0\u0168";

  private static int [] zzUnpackRowMap() {
    int [] result = new int[115];
    int offset = 0;
    offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackRowMap(String packed, int offset, int [] result) {
    int i = 0;  /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int high = packed.charAt(i++) << 16;
      result[j++] = high | packed.charAt(i++);
    }
    return j;
  }

  /** 
   * The transition table of the DFA
   */
  private static final int [] ZZ_TRANS = zzUnpackTrans();

  private static final String ZZ_TRANS_PACKED_0 =
    "\1\12\1\13\2\14\1\15\1\12\1\16\1\17\23\15"+
    "\1\20\1\21\1\22\1\23\1\24\1\25\1\26\1\27"+
    "\1\30\1\31\1\12\1\32\1\12\45\33\1\34\2\33"+
    "\1\35\2\36\3\35\1\37\41\35\43\40\1\41\4\40"+
    "\1\42\1\43\1\44\45\42\45\45\1\46\2\45\50\7"+
    "\50\10\50\11\52\0\1\14\51\0\2\15\2\0\23\15"+
    "\25\0\1\47\1\50\2\0\1\51\1\52\1\53\1\0"+
    "\1\54\1\55\2\0\1\56\1\57\2\0\1\60\64\0"+
    "\1\61\45\0\1\62\2\0\1\63\1\0\45\64\1\65"+
    "\47\64\1\65\1\64\1\66\1\35\2\0\3\35\1\0"+
    "\41\35\43\67\1\70\47\67\1\70\2\67\1\44\1\67"+
    "\1\71\1\43\1\44\45\71\2\0\1\44\114\0\1\72"+
    "\11\0\1\73\60\0\1\74\46\0\1\75\40\0\1\76"+
    "\62\0\1\77\45\0\1\100\46\0\1\101\5\0\1\102"+
    "\30\0\1\103\17\0\1\104\27\0\1\105\61\0\1\106"+
    "\36\0\1\107\64\0\1\110\40\0\1\111\45\0\1\112"+
    "\43\0\1\113\47\0\1\114\52\0\1\115\53\0\1\116"+
    "\42\0\1\117\50\0\1\120\64\0\1\121\45\0\1\122"+
    "\32\0\1\123\45\0\1\124\46\0\1\125\56\0\1\126"+
    "\56\0\1\127\46\0\1\130\45\0\1\131\50\0\1\132"+
    "\45\0\1\133\36\0\1\134\62\0\1\135\35\0\1\136"+
    "\46\0\1\137\51\0\1\140\60\0\1\141\35\0\1\142"+
    "\63\0\1\143\35\0\1\144\54\0\1\145\51\0\1\146"+
    "\52\0\1\147\35\0\1\150\53\0\1\151\53\0\1\152"+
    "\53\0\1\153\51\0\1\154\43\0\1\155\32\0\1\156"+
    "\50\0\1\157\60\0\1\160\51\0\1\161\40\0\1\162"+
    "\57\0\1\163\21\0";

  private static int [] zzUnpackTrans() {
    int [] result = new int[3120];
    int offset = 0;
    offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackTrans(String packed, int offset, int [] result) {
    int i = 0;       /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int count = packed.charAt(i++);
      int value = packed.charAt(i++);
      value--;
      do result[j++] = value; while (--count > 0);
    }
    return j;
  }


  /* error codes */
  private static final int ZZ_UNKNOWN_ERROR = 0;
  private static final int ZZ_NO_MATCH = 1;
  private static final int ZZ_PUSHBACK_2BIG = 2;

  /* error messages for the codes above */
  private static final String ZZ_ERROR_MSG[] = {
    "Unkown internal scanner error",
    "Error: could not match input",
    "Error: pushback value was too large"
  };

  /**
   * ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
   */
  private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();

  private static final String ZZ_ATTRIBUTE_PACKED_0 =
    "\1\0\10\1\1\11\1\1\1\11\1\1\1\11\1\1"+
    "\11\11\5\1\2\11\4\1\2\11\1\1\12\0\3\11"+
    "\2\0\1\11\3\0\1\11\35\0\1\11\1\0\1\11"+
    "\2\0\1\11\2\0\2\11\1\0\1\11\4\0\1\11"+
    "\1\0\1\11\1\0\1\11\1\0\1\11\3\0\2\11";

  private static int [] zzUnpackAttribute() {
    int [] result = new int[115];
    int offset = 0;
    offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackAttribute(String packed, int offset, int [] result) {
    int i = 0;       /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int count = packed.charAt(i++);
      int value = packed.charAt(i++);
      do result[j++] = value; while (--count > 0);
    }
    return j;
  }

  /** the input device */
  private java.io.Reader zzReader;

  /** the current state of the DFA */
  private int zzState;

  /** the current lexical state */
  private int zzLexicalState = YYINITIAL;

  /** this buffer contains the current text to be matched and is
      the source of the yytext() string */
  private char zzBuffer[] = new char[ZZ_BUFFERSIZE];

  /** the textposition at the last accepting state */
  private int zzMarkedPos;

  /** the textposition at the last state to be included in yytext */
  private int zzPushbackPos;

  /** the current text position in the buffer */
  private int zzCurrentPos;

  /** startRead marks the beginning of the yytext() string in the buffer */
  private int zzStartRead;

  /** endRead marks the last character in the buffer, that has been read
      from input */
  private int zzEndRead;

  /** number of newlines encountered up to the start of the matched text */
  private int yyline;

  /** the number of characters up to the start of the matched text */
  //private int yychar;

  /**
   * the number of characters from the last newline up to the start of the 
   * matched text
   */
  private int yycolumn;

  /** 
   * zzAtBOL == true <=> the scanner is currently at the beginning of a line
   */
  //private boolean zzAtBOL = true;

  /** zzAtEOF == true <=> the scanner is at the EOF */
  private boolean zzAtEOF;

  /* user code: */
	private int token_line;
	private int token_column;

	private String matched_text;

	private Symbol newSymbol(short id)
	{
		return new Symbol(id, yyline + 1, yycolumn + 1, yylength(), yytext());
	}

	private Symbol newSymbol(short id, Object value)
	{
		return new Symbol(id, yyline + 1, yycolumn + 1, yylength(), value);
	}


  /**
   * Creates a new scanner
   * There is also a java.io.InputStream version of this constructor.
   *
   * @param   in  the java.io.Reader to read input from.
   */
  public GrammarScanner(java.io.Reader in) {
    this.zzReader = in;
  }

  /**
   * Creates a new scanner.
   * There is also java.io.Reader version of this constructor.
   *
   * @param   in  the java.io.Inputstream to read input from.
   */
  public GrammarScanner(java.io.InputStream in) {
    this(new java.io.InputStreamReader(in));
  }

  /** 
   * Unpacks the compressed character translation table.
   *
   * @param packed   the packed character translation table
   * @return         the unpacked character translation table
   */
  private static char [] zzUnpackCMap(String packed) {
    char [] map = new char[0x10000];
    int i = 0;  /* index in packed string  */
    int j = 0;  /* index in unpacked array */
    while (i < 1284) {
      int  count = packed.charAt(i++);
      char value = packed.charAt(i++);
      do map[j++] = value; while (--count > 0);
    }
    return map;
  }


  /**
   * Refills the input buffer.
   *
   * @return      <code>false</code>, iff there was new input.
   * 
   * @exception   java.io.IOException  if any I/O-Error occurs
   */
  private boolean zzRefill() throws java.io.IOException {

    /* first: make room (if you can) */
    if (zzStartRead > 0) {
      System.arraycopy(zzBuffer, zzStartRead,
                       zzBuffer, 0,
                       zzEndRead-zzStartRead);

      /* translate stored positions */
      zzEndRead-= zzStartRead;
      zzCurrentPos-= zzStartRead;
      zzMarkedPos-= zzStartRead;
      zzPushbackPos-= zzStartRead;
      zzStartRead = 0;
    }

    /* is the buffer big enough? */
    if (zzCurrentPos >= zzBuffer.length) {
      /* if not: blow it up */
      char newBuffer[] = new char[zzCurrentPos*2];
      System.arraycopy(zzBuffer, 0, newBuffer, 0, zzBuffer.length);
      zzBuffer = newBuffer;
    }

    /* finally: fill the buffer with new input */
    int numRead = zzReader.read(zzBuffer, zzEndRead,
                                            zzBuffer.length-zzEndRead);

    if (numRead < 0) {
      return true;
    }
    else {
      zzEndRead+= numRead;
      return false;
    }
  }

    
  /**
   * Closes the input stream.
   */
  public final void yyclose() throws java.io.IOException {
    zzAtEOF = true;            /* indicate end of file */
    zzEndRead = zzStartRead;  /* invalidate buffer    */

    if (zzReader != null)
      zzReader.close();
  }


  /**
   * Resets the scanner to read from a new input stream.
   * Does not close the old reader.
   *
   * All internal variables are reset, the old input stream 
   * <b>cannot</b> be reused (internal buffer is discarded and lost).
   * Lexical state is set to <tt>ZZ_INITIAL</tt>.
   *
   * @param reader   the new input stream 
   */
  public final void yyreset(java.io.Reader reader) {
    zzReader = reader;
    zzAtEOF  = false;
    zzEndRead = zzStartRead = 0;
    zzCurrentPos = zzMarkedPos = zzPushbackPos = 0;
    yyline = yycolumn = 0;
    zzLexicalState = YYINITIAL;
  }


  /**
   * Returns the current lexical state.
   */
  public final int yystate() {
    return zzLexicalState;
  }


  /**
   * Enters a new lexical state
   *
   * @param newState the new lexical state
   */
  public final void yybegin(int newState) {
    zzLexicalState = newState;
  }


  /**
   * Returns the text matched by the current regular expression.
   */
  public final String yytext() {
    return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead );
  }


  /**
   * Returns the character at position <tt>pos</tt> from the 
   * matched text. 
   * 
   * It is equivalent to yytext().charAt(pos), but faster
   *
   * @param pos the position of the character to fetch. 
   *            A value from 0 to yylength()-1.
   *
   * @return the character at position pos
   */
  public final char yycharat(int pos) {
    return zzBuffer[zzStartRead+pos];
  }


  /**
   * Returns the length of the matched text region.
   */
  public final int yylength() {
    return zzMarkedPos-zzStartRead;
  }


  /**
   * Reports an error that occured while scanning.
   *
   * In a wellformed scanner (no or only correct usage of 
   * yypushback(int) and a match-all fallback rule) this method 
   * will only be called with things that "Can't Possibly Happen".
   * If this method is called, something is seriously wrong
   * (e.g. a JFlex bug producing a faulty scanner etc.).
   *
   * Usual syntax/scanner level error handling should be done
   * in error fallback rules.
   *
   * @param   errorCode  the code of the errormessage to display
   */
  private void zzScanError(int errorCode) {
    String message;
    try {
      message = ZZ_ERROR_MSG[errorCode];
    }
    catch (ArrayIndexOutOfBoundsException e) {
      message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR];
    }

    throw new Error(message);
  } 


  /**
   * Pushes the specified amount of characters back into the input stream.
   *
   * They will be read again by then next call of the scanning method
   *
   * @param number  the number of characters to be read again.
   *                This number must not be greater than yylength()!
   */
  public void yypushback(int number)  {
    if ( number > yylength() )
      zzScanError(ZZ_PUSHBACK_2BIG);

    zzMarkedPos -= number;
  }


  /**
   * Resumes scanning until the next regular expression is matched,
   * the end of input is encountered or an I/O-Error occurs.
   *
   * @return      the next token
   * @exception   java.io.IOException  if any I/O-Error occurs
   */
  public Symbol nextToken() throws java.io.IOException, Scanner.Exception {
    int zzInput;
    int zzAction;

    // cached fields:
    int zzCurrentPosL;
    int zzMarkedPosL;
    int zzEndReadL = zzEndRead;
    char [] zzBufferL = zzBuffer;
    char [] zzCMapL = ZZ_CMAP;

    int [] zzTransL = ZZ_TRANS;
    int [] zzRowMapL = ZZ_ROWMAP;
    int [] zzAttrL = ZZ_ATTRIBUTE;

    while (true) {
      zzMarkedPosL = zzMarkedPos;

      boolean zzR = false;
      for (zzCurrentPosL = zzStartRead; zzCurrentPosL < zzMarkedPosL;
                                                             zzCurrentPosL++) {
        switch (zzBufferL[zzCurrentPosL]) {
        case '\u000B':
        case '\u000C':
        case '\u0085':
        case '\u2028':
        case '\u2029':
          yyline++;
          yycolumn = 0;
          zzR = false;
          break;
        case '\r':
          yyline++;
          yycolumn = 0;
          zzR = true;
          break;
        case '\n':
          if (zzR)
            zzR = false;
          else {
            yyline++;
            yycolumn = 0;
          }
          break;
        default:
          zzR = false;
          yycolumn++;
        }
      }

      if (zzR) {
        // peek one character ahead if it is \n (if we have counted one line too much)
        boolean zzPeek;
        if (zzMarkedPosL < zzEndReadL)
          zzPeek = zzBufferL[zzMarkedPosL] == '\n';
        else if (zzAtEOF)
          zzPeek = false;
        else {
          boolean eof = zzRefill();
          zzEndReadL = zzEndRead;
          zzMarkedPosL = zzMarkedPos;
          zzBufferL = zzBuffer;
          if (eof) 
            zzPeek = false;
          else 
            zzPeek = zzBufferL[zzMarkedPosL] == '\n';
        }
        if (zzPeek) yyline--;
      }
      zzAction = -1;

      zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;
  
      zzState = zzLexicalState;


      zzForAction: {
        while (true) {
    
          if (zzCurrentPosL < zzEndReadL)
            zzInput = zzBufferL[zzCurrentPosL++];
          else if (zzAtEOF) {
            zzInput = YYEOF;
            break zzForAction;
          }
          else {
            // store back cached positions
            zzCurrentPos  = zzCurrentPosL;
            zzMarkedPos   = zzMarkedPosL;
            boolean eof = zzRefill();
            // get translated positions and possibly new buffer
            zzCurrentPosL  = zzCurrentPos;
            zzMarkedPosL   = zzMarkedPos;
            zzBufferL      = zzBuffer;
            zzEndReadL     = zzEndRead;
            if (eof) {
              zzInput = YYEOF;
              break zzForAction;
            }
            else {
              zzInput = zzBufferL[zzCurrentPosL++];
            }
          }
          int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ];
          if (zzNext == -1) break zzForAction;
          zzState = zzNext;

          int zzAttributes = zzAttrL[zzState];
          if ( (zzAttributes & 1) == 1 ) {
            zzAction = zzState;
            zzMarkedPosL = zzCurrentPosL;
            if ( (zzAttributes & 8) == 8 ) break zzForAction;
          }

        }
      }

      // store back cached position
      zzMarkedPos = zzMarkedPosL;

      switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
        case 9: 
          { /* ignore */
          }
        case 40: break;
        case 28: 
          { return newSymbol(Terminals.GOAL     );
          }
        case 41: break;
        case 10: 
          { return newSymbol(Terminals.IDENT, yytext());
          }
        case 42: break;
        case 3: 
          { yybegin(EOF_MLN_COMMENT);
          }
        case 43: break;
        case 35: 
          { return newSymbol(Terminals.IMPORT   );
          }
        case 44: break;
        case 14: 
          { return newSymbol(Terminals.SEMI     );
          }
        case 45: break;
        case 18: 
          { return newSymbol(Terminals.QUESTION );
          }
        case 46: break;
        case 13: 
          { return newSymbol(Terminals.IS       );
          }
        case 47: break;
        case 4: 
          { yybegin(EOF_EOL_COMMENT);
          }
        case 48: break;
        case 5: 
          { throw new Scanner.Exception(token_line + 1, token_column + 1, "end of file in Java code");
          }
        case 49: break;
        case 6: 
          { throw new Scanner.Exception(token_line + 1, token_column + 1, "end of file in comment");
          }
        case 50: break;
        case 2: 
          { yybegin(YYINITIAL); matched_text = null; throw new Scanner.Exception(token_line + 1, token_column + 1, "unterminated string");
          }
        case 51: break;
        case 7: 
          { yybegin(YYINITIAL);
          }
        case 52: break;
        case 1: 
          { yybegin(EOF_CODE);
          }
        case 53: break;
        case 33: 
          { return newSymbol(Terminals.CLASS    );
          }
        case 54: break;
        case 36: 
          { return newSymbol(Terminals.TYPEOF   );
          }
        case 55: break;
        case 16: 
          { return newSymbol(Terminals.DOT      );
          }
        case 56: break;
        case 19: 
          { return newSymbol(Terminals.PLUS     );
          }
        case 57: break;
        case 11: 
          { token_line = yyline; token_column = yycolumn; yybegin(TEXT);
          }
        case 58: break;
        case 23: 
          { token_line = yyline; token_column = yycolumn; yybegin(CODE);
          }
        case 59: break;
        case 24: 
          { token_line = yyline; token_column = yycolumn; yybegin(MLN_COMMENT);
          }
        case 60: break;
        case 12: 
          { return newSymbol(Terminals.COMMA    );
          }
        case 61: break;
        case 21: 
          { matched_text = yytext();
          }
        case 62: break;
        case 22: 
          { yybegin(YYINITIAL); String txt = matched_text; matched_text = null; return new Symbol(Terminals.TEXT, Symbol.makePosition(token_line + 1, token_column + 1), Symbol.makePosition(yyline + 1, yycolumn + 1), txt);
          }
        case 63: break;
        case 25: 
          { token_line = yyline; token_column = yycolumn; yybegin(EOL_COMMENT);
          }
        case 64: break;
        case 34: 
          { return newSymbol(Terminals.HEADER   );
          }
        case 65: break;
        case 27: 
          { yybegin(YYINITIAL); return new Symbol(Terminals.CODE, Symbol.makePosition(token_line + 1, token_column + 1), Symbol.makePosition(yyline + 1, yycolumn + 3), matched_text);
          }
        case 66: break;
        case 31: 
          { return newSymbol(Terminals.EMBED    );
          }
        case 67: break;
        case 38: 
          { return newSymbol(Terminals.NONASSOC );
          }
        case 68: break;
        case 29: 
          { return newSymbol(Terminals.INIT     );
          }
        case 69: break;
        case 17: 
          { return newSymbol(Terminals.BAR      );
          }
        case 70: break;
        case 20: 
          { return newSymbol(Terminals.STAR     );
          }
        case 71: break;
        case 26: 
          { yypushback(2); matched_text = yytext(); yybegin(CODE_END);
          }
        case 72: break;
        case 30: 
          { return newSymbol(Terminals.LEFT     );
          }
        case 73: break;
        case 8: 
          { throw new Scanner.Exception(yyline + 1, yycolumn + 1, "unrecognized character '" + yytext() + "'");
          }
        case 74: break;
        case 39: 
          { return newSymbol(Terminals.TERMINALS);
          }
        case 75: break;
        case 37: 
          { return newSymbol(Terminals.PACKAGE  );
          }
        case 76: break;
        case 15: 
          { return newSymbol(Terminals.AT       );
          }
        case 77: break;
        case 32: 
          { return newSymbol(Terminals.RIGHT    );
          }
        case 78: break;
        default: 
          if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
            zzAtEOF = true;
              { 	return newSymbol(Terminals.EOF, "end-of-file");
 }
          } 
          else {
            zzScanError(ZZ_NO_MATCH);
          }
      }
    }
  }


}
