| using J2N; |
| |
| namespace Lucene.Net.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. |
| */ |
| |
| /// <summary> |
| /// Automaton representation for matching <see cref="T:char[]"/>. |
| /// </summary> |
| public class CharacterRunAutomaton : RunAutomaton |
| { |
| public CharacterRunAutomaton(Automaton a) |
| : base(a, Character.MaxCodePoint, false) |
| { |
| } |
| |
| /// <summary> |
| /// Returns <c>true</c> if the given string is accepted by this automaton. |
| /// </summary> |
| public virtual bool Run(string s) |
| { |
| int p = m_initial; |
| int l = s.Length; |
| for (int i = 0, cp = 0; i < l; i += Character.CharCount(cp)) |
| { |
| p = Step(p, cp = Character.CodePointAt(s, i)); |
| if (p == -1) return false; |
| } |
| return m_accept[p]; |
| } |
| |
| /// <summary> |
| /// Returns <c>true</c> if the given string is accepted by this automaton. |
| /// </summary> |
| public virtual bool Run(char[] s, int offset, int length) |
| { |
| int p = m_initial; |
| int l = offset + length; |
| |
| for (int i = offset, cp = 0; i < l; i += Character.CharCount(cp)) |
| { |
| p = Step(p, cp = Character.CodePointAt(s, i, l)); |
| if (p == -1) return false; |
| } |
| return m_accept[p]; |
| } |
| } |
| } |