From: Trochalakis Christos <yatiohi@...>
Date: 2007-06-06T20:25:04+09:00
Subject: Re: efficient regex scanning

On Jun 6, 2:00 pm, Ola Bini <ola.b...@gmail.com> wrote:
> Trochalakis Christos wrote:
> > Hello there,
>
> > I wan't to extract all the words from a file and so i wrote the
> > following code:
>
> > file = ARGV[0]
> > File.open('output','w') {|f|
> >         IO.read(file).scan(/\w+/).each{|w| f.print w}
> > }
>
> > The problem with this code is that it stores all the words in an array
> > which is not so good in terms of efficiency.
> > Is there a better way to do it?
> > Something like IO.read(file).each_scan { foo }
>
> > Thanks
> > Christos
>
> Scan takes a block form:
>
> ri String.scan
>
>         IO.read(file).scan(/\w+/) {|w| f.print w}
>
> Cheers

Thanks a lot!
I suppose should have checked first :)