com.igormaznitsa.commons.version.operators.ExpressionParser Maven / Gradle / Ivy

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Set of classes to parse and process version information

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/*
 * Copyright 2016 Igor Maznitsa.
 *
 * 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 com.igormaznitsa.commons.version.operators;

import java.io.Serializable;
import com.igormaznitsa.commons.version.VersionValidator;

/**
 * Interface to be implemented by an expression parser.
 * @since 1.0.0
 * @see VersionValidator
 * @see DefaultExpressionParser
 */
public interface ExpressionParser extends Serializable {
  
  /**
   * Parse some text and return root operator for the parsed tree.
   * @param expression text to be parsed as expression, it can be null
   * @return the parsed root tree operator, it can be null
   * @since 1.0.0
   */
  Operator parse(String expression);
}