package name.panitz.crempel.util.xml.parslib;

import java.util.List;
import java.util.ArrayList;
import org.w3c.dom.Node;
import name.panitz.crempel.util.Maybe;
import name.panitz.crempel.util.Tuple2;
import name.panitz.crempel.util.Function1;

public interface  Parser<a>{
  public ParseResult<a> parse(List<Node> xs);

  public <b> Parser<Tuple2<a,b>> seq(Parser<b> p2);
  public <b extends a> Parser<a> choice(Parser<b> p2);
  public Parser<List<a>> star();
  public Parser<List<a>> plus();
  public Parser<Maybe<a>> query();
  public <b> Parser<b> map(Function1<a,b> f);
}