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import java.io.File;
import java.io.FileFilter;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
/**
* Various string manipulation methods that are more efficient then chaining
* string operations: all is done in the same buffer without creating a bunch of
* string objects.
*
* @author <a href="mailto:dev@labs.apache.org">Dungeon Project</a>
*/
public class Main {
/** <alpha> | <digit> | '-' */
private static final boolean[] CHAR =
{
false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false,
false, false, false, false, false, true, false, false,
true, true, true, true, true, true, true, true,
true, true, false, false, false, false, false, false,
false, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true,
true, true, true, false, false, false, false, false,
false, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true,
true, true, true, false, false, false, false, false
};
/**
* Check if the current character is an 7 bits ASCII CHAR (between 0 and
* 127). <char> ::= <alpha> | <digit> | '-'
*
* @param byteArray
* The buffer which contains the data
* @param index
* Current position in the buffer
* @return The position of the next character, if the current one is a CHAR.
*/
public static final boolean isAlphaDigitMinus( byte[] byteArray, int index )
{
if ( ( byteArray == null ) || ( byteArray.length == 0 ) || ( index < 0 ) || ( index >= byteArray.length ) )
{
return false;
}
else
{
byte c = byteArray[index++];
if ( ( ( c | 0x7F ) != 0x7F ) || ( CHAR[c] == false ) )
{
return false;
}
else
{
return true;
}
}
}
}
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