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From: Bertram Scharpf on 19 Dec 2009 09:13
Hi,

Am Freitag, 18. Dez 2009, 23:39:40 +0900 schrieb Robert Klemme:
> 2009/12/18 beny 18241 <beny18241(a)gmail.com>:
> > ok closed Ifigue it out :)
> >
> > puts ARGF.read.scan(/<mms:MmsCcppAccept>.*?<\/mms:MmsCcppAccept>/m)
>
> Eric's solution is better for large files because it requires reading
> the file line by line only. Note that it uses a special feature of
> "if" when using a range with boolean expressions: in that case
> matching state is stored and the complete expression is true when the
> first matches, stays true and only switches back to false if the
> second matches:
>
> 10.times {|i| if /^3/ =~ i.to_s .. /^7/ =~ i.to_s; puts i; end}

The name of the feature is flip-flop if you like to google for it.

I'm not sure whether it really makes code more readable.

Bertram


--
Bertram Scharpf
Stuttgart, Deutschland/Germany
*
Discover String#notempty? at <http://raa.ruby-lang.org/project/step>.

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