From: Robert Klemme <bob.news@...>
Date: 2004-08-18T19:31:01+09:00
Subject: Regexp scanning with MatchData (Re: multiple regexp matches)


"Austin Ziegler" <halostatue@gmail.com> schrieb im Newsbeitrag
news:9e7db91104081713254f2eb39e@mail.gmail.com...
> This should do what you want.
>
> -austin
>
> str = '<span id="1"> <span>...</span> </span>'
> re = /(<(\/?)span>)/i
>
> str.scan(re) # => [["<span>", ""], ["</span>", "/"], ["</span>", "/"]]
>
> matches = []
> str.scan(re) do
>   matches << Regexp.last_match
> end
>
> matches.each do |match|
>   match.captures.each_with_index do |capture, ii|
>     soff, eoff = match.offset(ii + 1)
>     puts %Q("#{capture}" #{soff} .. #{eoff})
>   end
> end
>

While that works, isn't it ridiculous that one has to resort to a class
method ("Regexp.last_match")?  I mean, there should rather be something like

/o/.each( "foo" ) do |md|
  # md is MatchData
end

Or even

/o/.matcher( "foo" ).each do |md|
  # md is MatchData
end

That way Matcher could implement Enumerable.

Sounds like a candidate for a RCR.  Any comments?

    robert