From: michael xu <guorong.xu@...>
Date: 2011-08-25T07:14:17+09:00
Subject: how to find all matches using ruby regex?

I have the following ruby code and I want to find all matched
"data-1.2.5.tar.gz" and "data-1.2.7.tar.gz", then stored in $1 and $2.
When I executed it and I found $1 is "data-1.2.5.tar.gz", but $2 is nil.
How can I get $2 is "data-1.2.7.tar.gz"?

=============================================================
string1 = "data-1.2.5.tar.gz and data-1.2.7.tar.gz and readme."

if string1 =~ /(data-\d+\.\d+\.\d+\.tar\.gz)/
  print "Matched on ", $1, "\n"
  print "Matched on ", $2, "\n"

else
  puts "NO MATCH"
end

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