/**
 * JavaCC template file created by SF JavaCC plugin 1.5.17+ wizard for JavaCC 1.5.0+
 */
options
{
  JDK_VERSION = "1.5";
  static = false;
}

PARSER_BEGIN(ParseRythmicTree)
package javacc.client;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
public class ParseRythmicTree
{
  public static void make(String s) throws ParseException
  {
    
 ParseRythmicTree parser = new ParseRythmicTree(s);
     
    
      
      
      try
      {
        System.out.println(parser.start());
      }
      catch (Exception e)
      {
        System.out.println("NOK.");
        System.out.println(e.getMessage());
        
      }
      catch (Error e)
      {
        System.out.println("Oops.");
        System.out.println(e.getMessage());
       
      }
    
  }
  
}

PARSER_END(ParseRythmicTree)


SKIP : {" "}
TOKEN : { <LPAR : "(">}
TOKEN : { <RPAR : ")">}
TOKEN : { <NUMBER :  ("-")? (["0"-"9"])+>}
TOKEN : { <FRAC : (["0"-"9"])+ "/" (["0"-"9"])+>}
TOKEN : { < END : "\n" > }


RythmicTree start(): {
    RythmicTree rt; 
  } 
{rt = exp()< EOF >

{
  return rt; 
}
}

RythmicTree exp(): {
    Token t;
    RythmicTree rt;
    Fraction ratio = new Fraction(0,1);
    ArrayList<RythmicTree > children = null; 
  }
{
 (
    (
    < LPAR >
    
    {
      children = new ArrayList<RythmicTree >();
    }
    ratio = makeRatio()
    <LPAR >
    (
      rt = exp()
    {
      children.add(rt);
    }
    )+
    < RPAR > <RPAR >
   ) | ratio = makeRatio())
   {
    
      return new RythmicTree(ratio,children);
    }
}

Fraction makeRatio() :
{
    Fraction f; 
    Token t; 
}
{
   ( t = < NUMBER > |  t = < FRAC >)
    {
      if(t.kind == NUMBER)
        f = new Fraction(Integer.parseInt(t.image), 1);
      else
        f = new Fraction(Integer.parseInt(t.image.split("/")[0]), Integer.parseInt(t.image.split("/")[1]));
    return f; 
    }
}