From: Jeff Everett <jaever@...>
Date: 2006-07-22T04:54:43+09:00
Subject: Re: Newbie Question: delete all non alphanumeric characters

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I think \W is non-perl-word, so underscores won't be stripped. If you want
those out too:

irb(main):006:0> str = "The $re34& __q!?"
=> "The $re34& __q!?"
irb(main):007:0> str.gsub( /\W/, '')
=> "There34__q"
irb(main):008:0> str.gsub( /\W|_/, '')
=> "There34q"
irb(main):009:0>

Jeff

On 7/21/06, Jim Cochrane <allergic-to-spam@no-spam-allowed.org> wrote:
>
> On 2006-07-21, Theallnighter Theallnighter <theallnighter@gmail.com>
> wrote:
> > Hi all,
> > how can i delete all non alphanumeric characters in a string ? thanks
> >
>
> I've also just started to learn Ruby, so thought I'd reply for the
> practice -
> Here's one solution:
>
>
> ------------------------------------------------------------------------
> #!/usr/bin/ruby
>
> x = "There are 2007 beans and 15234 grains of rice in this bag."
> puts x
> x.gsub!(/\W/, '')
> puts x
>
> ------------------------------------------------------------------------
>
> output:
>
> There are 2007 beans and 15234 grains of rice in this bag.
> Thereare2007beansand15234grainsofriceinthisbag
>
> --
>
>
>

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