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62 lines
2.2 KiB
62 lines
2.2 KiB
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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/*
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* Copyright 1999-2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.sun.org.apache.regexp.internal;
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/**
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* This is a class that contains utility helper methods for this package.
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*
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* @author <a href="mailto:jonl@muppetlabs.com">Jonathan Locke</a>
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*/
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public class REUtil
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{
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/** complex: */
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private static final String complexPrefix = "complex:";
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/**
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* Creates a regular expression, permitting simple or complex syntax
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* @param expression The expression, beginning with a prefix if it's complex or
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* having no prefix if it's simple
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* @param matchFlags Matching style flags
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* @return The regular expression object
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* @exception RESyntaxException thrown in case of error
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*/
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public static RE createRE(String expression, int matchFlags) throws RESyntaxException
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{
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if (expression.startsWith(complexPrefix))
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{
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return new RE(expression.substring(complexPrefix.length()), matchFlags);
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}
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return new RE(RE.simplePatternToFullRegularExpression(expression), matchFlags);
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}
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/**
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* Creates a regular expression, permitting simple or complex syntax
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* @param expression The expression, beginning with a prefix if it's complex or
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* having no prefix if it's simple
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* @return The regular expression object
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* @exception RESyntaxException thrown in case of error
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*/
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public static RE createRE(String expression) throws RESyntaxException
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{
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return createRE(expression, RE.MATCH_NORMAL);
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}
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}
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