From: Brian Adkins <lojicdotcom@...>
Date: 2007-10-28T14:55:09+09:00
Subject: Re: convert string format

On Oct 27, 11:21 pm, 7stud -- <bbxx789_0...@yahoo.com> wrote:
> Brian Adkins wrote:
>
> > Yeah, but scanf is implemented in Ruby, so it's 25 times slower (at
> > least by a crude, quick benchmark) than unpack or insert :(
>
> This one is super speedy:
>
> str = '20070801'
> new_str = sprintf("%4s/%2s/%2s", str, str, str)
>
> On my system sprintf() is twice as fast as unpack(), which is twice as
> fast as match().

Yes, but fast and incorrect is a bad combination. :)