org.mozilla.universalchardet.prober.distributionanalysis.EUCJPDistributionAnalysis Maven / Gradle / Ivy
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
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* The Original Code is Mozilla Communicator client code.
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* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
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* Contributor(s):
* Kohei TAKETA (Java port)
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package org.mozilla.universalchardet.prober.distributionanalysis;
public class EUCJPDistributionAnalysis extends JISDistributionAnalysis {
////////////////////////////////////////////////////////////////
// constants
////////////////////////////////////////////////////////////////
public static final int HIGHBYTE_BEGIN = 0xA1;
public static final int HIGHBYTE_END = 0xFE;
public static final int LOWBYTE_BEGIN = 0xA1;
public static final int LOWBYTE_END = 0xFE;
////////////////////////////////////////////////////////////////
// methods
////////////////////////////////////////////////////////////////
public EUCJPDistributionAnalysis() {
super();
}
@Override
protected int getOrder(final byte[] buf, int offset) {
int highbyte = buf[offset] & 0xFF;
if (highbyte >= HIGHBYTE_BEGIN) {
int lowbyte = buf[offset+1] & 0xFF;
return (94 * (highbyte - HIGHBYTE_BEGIN) + lowbyte - LOWBYTE_BEGIN);
} else {
return -1;
}
}
}