jaskell.parsec.common.Letter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jaskell-java8 Show documentation

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;

/**
 * TODO
 *
 * @author mars
 * @version 1.0.0
 * @since 2020/06/12 19:26
 */
public class Letter implements Parsec {
  @Override
  public Character parse(State s) throws EOFException, ParsecException {
    Character c = s.next();
    if(Character.isLetter(c)){
      return c;
    } else {
      throw s.trap(String.format("expect a letter but get %c", c));
    }
  }
}