From: yvon.thoravalNO-SPAM@... (Yvon Thoraval)
Date: 2004-03-27T16:44:25+09:00
Subject: [newbie] linked hash

i'm transalating a BeanShell prog using :
Map fieldsHash = new LinkedHashMap();
fieldsHash.put("btl_desc", "Description");
fieldsHash.put("btl_vintage", "Millesime");
fieldsHash.put("btl_buy_date", "Date achat");
fieldsHash.put("wcol_id", "Coul.");
fieldsHash.put("btl_init_nbr", "Qte A");
fieldsHash.put("btl_current_nbr", "Qte R");

i've seen the PseudoHash of Gotoken :

class PseudoHash < Hash

  VERSION = "2000-12-25"

  def order
    @order ||= []
  end

  def order=(ary)
    order.replace ary
  end

  def with_order(ary)
    self.order = ary
    self
  end

  def order_of(key)
    order.index(key)
  end

  alias __each__ each
  alias aset []=

  def []=(k, *rest)
    val, set = rest.reverse
    order.push k if set and not order.include? k
    aset(k,val)
  end

  def each
    rest = keys - order
    order.each {|k| yield(k, self[k]) if include?(k)}
    rest.each  {|k| yield(k, self[k]) }
  end

  alias each_pair each
end


i want to emulate that LinkedHashMap into ruby without calling the java
class (it's possible because i'm using JRuby) how could i make
modifications, if any, Gotoken's code for that ?


-- 
yt