RE: char equivalence classes in search - why not symmetric?

[Drew Adams]

> If I may weigh in. I think the whole discussion of whether this should
> be symmetric or not is pointless. There are arguments for both sides,
> and without any significant amount of empirical evidence, any choice
> is as good as flipping a coin.
>
> I'd much rather we focus effort on making the equiv-classes easier to
> customize.

1. You are welcome to say that you would rather flip a coin than
   try to discuss what this thread proposes.

2. I too would like to see progress wrt a discussion about letting
   users easily define new equivalence classes and customize
   existing equivalence classes.  But please start a separate
   thread for that.