package com.flaptor.org.apache.lucene.util.automaton; /** * 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. */ public class ByteRunAutomaton extends RunAutomaton { public ByteRunAutomaton(Automaton a) { this(a, false); } /** expert: if utf8 is true, the input is already byte-based */ public ByteRunAutomaton(Automaton a, boolean utf8) { super(utf8 ? a : new UTF32ToUTF8().convert(a), 256, true); } /** * Returns true if the given byte array is accepted by this automaton */ public boolean run(byte[] s, int offset, int length) { int p = initial; int l = offset + length; for (int i = offset; i < l; i++) { p = step(p, s[i] & 0xFF); if (p == -1) return false; } return accept[p]; } }