From: mental@...
Date: 2005-12-20T07:29:17+09:00
Subject: Re: Point an element in Hash Object

Quoting Daniel Sheppard <daniels@pronto.com.au>:

> instance_methods.each {|m| undef_method m unless /__.*__/ === m}

Just as an aside, I'm wondering whether this is the best form
of that particular idiom.

Probably what people _mean_ when they use /__.*__/ is "match any
names _starting and ending_ with double underscores", but that's
not what that regexp does -- you'd need to write /^__.*__$/
instead.

I usually stick with /^__/ instead, as "starts with double
underscores" seems to be sufficient in all interesting cases.

Other thoughts?

-mental