From: "Víctor Adrián de la Cruz Serrano" <adrian@...>
Date: 2009-11-13T01:47:31+09:00
Subject: Re: Need help to detect error

Yeah, but I don't know where exactly should I report it. What is the
link to their bug tracker?

Exactly, the difference is only one char.
And I have found that it works with words like: parent, parenta,
parenton, parent.
But it fails with words like: battle, battlefield, bparent.

Strange, isn't it?

El jue, 12-11-2009 a las 09:41 +0900, Judson Lester escribió:
> That's bizarre.  All that I can see that's different is because the failing
> version uses the attribute "bparent" and the other uses "parent", the
> backreferences occur in different places in the resulting YAML.  I believe
> that Syck was taking over when _why left - you ought to file a bug.
> 
> (Unless there's an obscure YAML rule that backreferences have to occur after
> literal values...)
> 
> Judson
> 
> 2009/11/11 Víctor Adrián <adrian@lobotuerto.com>
> 
> > Or anyone knows where can I contact some YAML guys to help me with this
> > obscure problem?
> >
> > El mié, 11-11-2009 a las 16:58 +0900, Víctor Adrián de la Cruz Serrano
> > escribió:
> > > I don't know what am I doing wrong, can anyone help me?
> > > These two programs look very similar, but they yield different results.
> > > Can anyone confirm this "error"?
> > >
> > >
> > > =================================================================
> > > # FAILING EXAMPLE
> > > =================================================================
> > > class Battlefield
> > >   attr_accessor :teams
> > >   def initialize
> > >     @teams = []
> > >   end
> > >   def add_team(team)
> > >     @teams << team
> > >     team.bparent = self
> > >   end
> > > end
> > >
> > > class Team
> > >   attr_accessor :members, :bparent
> > >   def initialize
> > >     @members = []
> > >     @bparent = nil
> > >   end
> > >   def add_member(child)
> > >     @members << child
> > >     child.team = self
> > >   end
> > > end
> > >
> > > class Warrior
> > >   attr_accessor :team
> > >   def initialize
> > >     @team = nil
> > >   end
> > > end
> > >
> > > w = Warrior.new
> > > t = Team.new
> > > t.add_member(w)
> > > b = Battlefield.new
> > > b.add_team(t)
> > > b.inspect
> > > #Convert to YAML and back
> > > y = YAML.load(b.to_yaml)
> > > #Now have a look at the "members" array inside a team... it's gone
> > > y.inspect
> > > y.teams.first.members.inspect
> > >
> > >
> > > =================================================================
> > > # GOOD EXAMPLE
> > > =================================================================
> > > require 'yaml'
> > >
> > > class Battlefield
> > >   attr_accessor :teams
> > >   def initialize
> > >     @teams = []
> > >   end
> > >   def add_team(team)
> > >     @teams << team
> > >     team.parent = self
> > >   end
> > > end
> > >
> > > class Team
> > >   attr_accessor :members, :parent
> > >   def initialize
> > >     @members = []
> > >     @parent = nil
> > >   end
> > >   def add_member(child)
> > >     @members << child
> > >     child.team = self
> > >   end
> > > end
> > >
> > > class Warrior
> > >   attr_accessor :team
> > >   def initialize
> > >     @team = nil
> > >   end
> > > end
> > >
> > > w = Warrior.new
> > > t = Team.new
> > > t.add_member(w)
> > > b = Battlefield.new
> > > b.add_team(t)
> > > b.inspect
> > > #Convert to YAML and back
> > > y = YAML.load(b.to_yaml)
> > > #Now have a look at the "members" array inside a team, it's still there
> > > y.inspect
> > > y.teams.first.members.inspect
> > >
> > >
> > >
> >
> >
> >
> >