57 lines
2.0 KiB
Java
57 lines
2.0 KiB
Java
/*
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* Copyright (c) 2013-2015 Mozilla Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package nu.validator.encoding;
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import java.nio.ByteBuffer;
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import java.nio.CharBuffer;
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import java.nio.charset.Charset;
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import java.nio.charset.CharsetDecoder;
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import java.nio.charset.CoderResult;
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class UserDefinedDecoder extends Decoder {
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UserDefinedDecoder(Charset cs) {
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super(cs, 1.0f, 1.0f);
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}
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@Override protected CoderResult decodeLoop(ByteBuffer in, CharBuffer out) {
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// TODO figure out if it's worthwhile to optimize the case where both
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// buffers are array-backed.
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for (;;) {
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if (!in.hasRemaining()) {
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return CoderResult.UNDERFLOW;
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}
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if (!out.hasRemaining()) {
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return CoderResult.OVERFLOW;
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}
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int b = (int)in.get();
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if (b >= 0) {
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out.put((char)b);
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} else {
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out.put((char)(b + 128 + 0xF780));
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}
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}
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}
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}
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