content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.cassandra.index.sasi.analyzer;
  
  import java.io.IOException;
  import java.io.Reader;
  
  /**
   * Internal interface for supporting versioned grammars.
   */
  public interface StandardTokenizerInterface
  {
  
      String getText();
  
      char[] getArray();
  
      byte[] getBytes();
  
      /**
       * Returns the current position.
       */
      long yychar();
  
      /**
       * Returns the length of the matched text region.
       */
      int yylength();
  
      /**
       * 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, {@link StandardTokenizerImpl#YYEOF} on end of stream
       * @exception   java.io.IOException  if any I/O-Error occurs
       */
      int getNextToken() throws IOException;
  
      /**
       * 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
       */
      void yyreset(Reader reader);
  }
  