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package info.bliki.wiki.template.expr.operator;

import info.bliki.wiki.template.expr.ast.ASTNode;
import info.bliki.wiki.template.expr.ast.IParserFactory;

public class SubtractOperator extends InfixOperator {
    public SubtractOperator(final String oper, final String functionName, final int precedence,
            final int grouping) {
        super(oper, functionName, precedence, grouping);
    }

    @Override
    public ASTNode createFunction(final IParserFactory factory, final ASTNode lhs,
            final ASTNode rhs) {
        return factory.createFunction(factory.createSymbol("Plus"), lhs,
                factory.createFunction(factory.createSymbol("Times"),
                        factory.createInteger(-1), rhs));
    }
}