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This is a utils library for java 8 project. It include parsec combinators and sql generators library.

There is a newer version: 2.9.2

package jaskell.parsec.common;

import jaskell.parsec.ParsecException;

import java.io.EOFException;
import java.util.function.Predicate;

/**
 * TODO
 *
 * @author mars
 * @version 1.0.0
 * @since 2020/07/23 14:58
 */
public class Is implements Parsec {
    private final Predicate predicate;

    public Is(Predicate predicate) {
        this.predicate = predicate;
    }

    @Override
    public E parse(State s) throws EOFException, ParsecException {
        E item = s.next();
        if(predicate.test(item)){
            return item;
        } else {
            throw s.trap(String.format("expect anything pass the predicate check but %s", item));
        }
    }
}