public QueryParserTokenManager(CharStream stream) 
{
  
   input_stream = stream;
}

 public QueryParserTokenManager(CharStream stream,
    int lexState) 
{
   this(stream);
   SwitchTo(lexState);
}

 public  void ReInit(CharStream stream) 
{
   jjmatchedPos = jjnewStateCnt = 0;
   curLexState = defaultLexState;
   input_stream = stream;
   ReInitRounds();
}

 public  void ReInit(CharStream stream,
    int lexState) 
{
   ReInit(stream);
   SwitchTo(lexState);
}

 public  void SwitchTo(int lexState) 
{
   if (lexState  >= 4 || lexState <  0)
      throw new TokenMgrError("Error: Ignoring invalid lexical state : " + lexState + ". State unchanged.", TokenMgrError.INVALID_LEXICAL_STATE);
   else
      curLexState = lexState;
}

 public Token getNextToken() 
{
   
  int kind;
  Token specialToken = null;
  Token matchedToken;
  int curPos = 0;
  EOFLoop :
  for (;;)
  {   
   try   
   {     
      curChar = input_stream.BeginToken();
   }     
   catch(java.io.IOException e)
   {        
      jjmatchedKind = 0;
      matchedToken = jjFillToken();
      return matchedToken;
   }
   switch(curLexState)
   {
     case 0:
       jjmatchedKind = 0x7fffffff;
       jjmatchedPos = 0;
       curPos = jjMoveStringLiteralDfa0_0();
       break;
     case 1:
       jjmatchedKind = 0x7fffffff;
       jjmatchedPos = 0;
       curPos = jjMoveStringLiteralDfa0_1();
       break;
     case 2:
       jjmatchedKind = 0x7fffffff;
       jjmatchedPos = 0;
       curPos = jjMoveStringLiteralDfa0_2();
       break;
     case 3:
       jjmatchedKind = 0x7fffffff;
       jjmatchedPos = 0;
       curPos = jjMoveStringLiteralDfa0_3();
       break;
   }
     if (jjmatchedKind != 0x7fffffff)
     {
        if (jjmatchedPos + 1 <  curPos)
           input_stream.backup(curPos - jjmatchedPos - 1);
        if ((jjtoToken[jjmatchedKind  > > 6] & (1L < <  (jjmatchedKind & 077))) != 0L)
        {
           matchedToken = jjFillToken();
       if (jjnewLexState[jjmatchedKind] != -1)
         curLexState = jjnewLexState[jjmatchedKind];
           return matchedToken;
        }
        else
        {
         if (jjnewLexState[jjmatchedKind] != -1)
           curLexState = jjnewLexState[jjmatchedKind];
           continue EOFLoop;
        }
     }
     int error_line = input_stream.getEndLine();
     int error_column = input_stream.getEndColumn();
     String error_after = null;
     boolean EOFSeen = false;
     try { input_stream.readChar(); input_stream.backup(1); }
     catch (java.io.IOException e1) {
        EOFSeen = true;
        error_after = curPos < = 1 ? "" : input_stream.GetImage();
        if (curChar == '\n" || curChar == '\r") {
           error_line++;
           error_column = 0;
        }
        else
           error_column++;
     }
     if (!EOFSeen) {
        input_stream.backup(1);
        error_after = curPos < = 1 ? "" : input_stream.GetImage();
     }
     throw new TokenMgrError(EOFSeen, curLexState, error_line, error_column, error_after, curChar, TokenMgrError.LEXICAL_ERROR);
  }
}

 protected Token jjFillToken() 
{
   Token t = Token.newToken(jjmatchedKind);
   t.kind = jjmatchedKind;
   String im = jjstrLiteralImages[jjmatchedKind];
   t.image = (im == null) ? input_stream.GetImage() : im;
   t.beginLine = input_stream.getBeginLine();
   t.beginColumn = input_stream.getBeginColumn();
   t.endLine = input_stream.getEndLine();
   t.endColumn = input_stream.getEndColumn();
   return t;
}

 public  void setDebugStream(PrintStream ds) 
{
        debugStream = ds;
}