/*
    *
    * Copyright 2002-2004 The Ant-Contrib project
    *
    *  Licensed 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.codehaus.mojo.natives.parser;
  
  public class BranchState
      extends AbstractParserState
  {
      private char[] branchChars;
  
      private AbstractParserState[] branchStates;
  
      private AbstractParserState noMatchState;
  
      public BranchState( AbstractParser parser, char[] branchChars, AbstractParserState[] branchStates,
                          AbstractParserState noMatchState )
      {
          super( parser );
          this.branchChars = (char[]) branchChars.clone();
          this.branchStates = (AbstractParserState[]) branchStates.clone();
          this.noMatchState = noMatchState;
      }
  
      public AbstractParserState consume( char ch )
      {
          AbstractParserState state;
          for ( int i = 0; i < branchChars.length; i++ )
          {
              if ( ch == branchChars[i] )
              {
                  state = branchStates[i];
                  return state.consume( ch );
              }
          }
          state = getNoMatchState();
          if ( state != null )
          {
              return state.consume( ch );
          }
          return state;
      }
  
      protected AbstractParserState getNoMatchState()
      {
          return noMatchState;
      }
  }