From: Gregory Brown <gregory.t.brown@...>
Date: 2008-08-01T06:03:41+09:00
Subject: Re: super with block

On Thu, Jul 31, 2008 at 4:51 PM, Lou Zell <lzell11@gmail.com> wrote:

> Which is obviously not what I want.  I would like to pass the original
> code block:
>
> gsub!(args[0]) {$1}
>
>
> Any ideas?

If you don't mind a little redundancy, you can match the string first,
pull the MatchData object, and yield that:

>> class String
>>   def nsub!(*args)
>>      m = match(args[0])
>>      gsub!(args[0]) { yield(m) }
>>   end
>> end
=> nil
>> str = "match1match2"
=> "match1match2"
>> str.nsub!(/(match1)(match2)/) { |m| m[1] + "---" + m[2] }
=> "match1---match2"
>> str
=> "match1---match2"

It would be nice if MatchData was yielded by gsub instead of a string.

-greg

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