Woah dude! Thanks for that :) I'll work my way through understanding
it now :)
Cheers!
Brendon
On Sep 6, 3:22 am, "Pardee, Roy" <[EMAIL PROTECTED]> wrote:
> This is kinda ghetto (particularly needing to check chunk.length) but it
> works on your sample string.
>
> def parse_item(lin)
> ret = Array.new
> re = Regexp.new(/([^\[\]]+?(\[|\]))+?/)
> lin.split(re).each do |chunk|
> if chunk.length > 1 then
> case chunk
> when /\]$/
> # bracketed option list
> ret << chunk[0..-2].split(',')
> else
> # plain chunk of text
> ret << chunk.gsub(/\[$/, '').strip
> end
> end
> end
> ret.inspect
> end
>
> HTH,
>
> -Roy
>
> -----Original Message-----
> From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf
> Of Brendon
> Sent: Wednesday, September 03, 2008 6:28 PM
> To: Ruby on Rails: Talk
> Subject: [Rails] Regular Expression help
>
> Hi everyone, I hope it's appropriate to post this question here. I couldn't
> find anywhere else to post it (posting to the Ruby group didn't work). I'm
> trying to write a regular expression to turn this
> string:
>
> 'johnny went to the [shops] and played [games,soccer,foot ball] with others.'
>
> into this:
>
> ['johnny went to the', ['shops'], 'and played', ['games', 'soccer', 'foot
> ball'], 'with others.']
>
> Key features are that white space needs to be stripped from around the
> snippets, and I need to be able to determine which parts are just normal text
> and which parts are to be used as gaps where people fill in the missing info.
> If you haven't already figured it out, this is for a children's quiz engine.
> When a phrase appears in square brackets it's a blank, the system will
> display a text box for the user to type into. If there are multiple items in
> the square brackets seperated by comma's (and optional spaces around the
> comma's by lazy users) then the system will display the choices in a random
> order in a drop down box (the first choice in the list is the correct one).
>
> I've had a long go at it myself but I just don't fully grasp the regexp
> language:
>
> irb(main):027:0> 'johnny went to the [shops] and played [games,soccer,foot
> ball] with others.'.split(/\[(?:([(?:\s)\w(?:\s)]+)(?:,([(?:\s)\w(?:\s)]
> +))*)\]/)
> => ["johnny went to the ", "shops", " and played ", "games", "foot ball", "
> with others."]
>
> I've tried doing groupings but it seems to make things worse :)
>
> Any help would be truly appreciated :)
>
> Cheers,
>
> Brendon
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