/*
* Redberry: symbolic tensor computations.
*
* Copyright (c) 2010-2013:
* Stanislav Poslavsky <stvlpos@mail.ru>
* Bolotin Dmitriy <bolotin.dmitriy@gmail.com>
*
* This file is part of Redberry.
*
* Redberry is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Redberry is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Redberry. If not, see <http://www.gnu.org/licenses/>.
*/
package cc.redberry.core.context.defaults;
import cc.redberry.core.context.IndexConverterException;
import cc.redberry.core.context.IndexSymbolConverter;
import cc.redberry.core.context.OutputFormat;
/**
* {@link IndexSymbolConverter} for latin upper case letters.
*
* @author Dmitry Bolotin
* @author Stanislav Poslavsky
* @since 1.0
*/
public final class LatinUpperCaseConverter implements IndexSymbolConverter {
/**
* Index type = 1
*/
public static final byte TYPE = 1;
/**
* Singleton instance
*/
public static final LatinUpperCaseConverter INSTANCE = new LatinUpperCaseConverter();
private LatinUpperCaseConverter() {
}
@Override
public boolean applicableToSymbol(String symbol) {
if (symbol.length() == 1) {
char sym = symbol.charAt(0);
if (sym >= 0x41 && sym <= 0x5A)
return true;
}
return false;
}
@Override
public int getCode(String symbol) {
return (symbol.charAt(0) - 0x41);
}
@Override
public String getSymbol(int code, OutputFormat mode) throws IndexConverterException {
int number = code + 0x41;
if (number > 0x5A)
throw new IndexConverterException();
return Character.toString((char) number);
}
/**
* @return 1
*/
@Override
public byte getType() {
return TYPE;
}
@Override
public int maxNumberOfSymbols() {
return 25;
}
}