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51 lines
1.9 KiB
Java
51 lines
1.9 KiB
Java
// Mozilla has modified this file - see http://hg.mozilla.org/ for details.
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. 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 org.mozilla.apache.commons.codec.net;
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import org.mozilla.apache.commons.codec.DecoderException;
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/**
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* Utility methods for this package.
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*
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* @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
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* @version $Id: Utils.java 798611 2009-07-28 17:10:44Z ggregory $
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* @since 1.4
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*/
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class Utils {
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/**
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* Returns the numeric value of the character <code>b</code> in radix 16.
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*
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* @param b
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* The byte to be converted.
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* @return The numeric value represented by the character in radix 16.
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*
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* @throws DecoderException
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* Thrown when the byte is not valid per {@link Character#digit(char,int)}
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*/
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static int digit16(byte b) throws DecoderException {
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int i = Character.digit((char) b, 16);
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if (i == -1) {
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throw new DecoderException("Invalid URL encoding: not a valid digit (radix " + URLCodec.RADIX + "): " + b);
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}
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return i;
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}
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}
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