From: ts <decoux@...>
Date: 2001-04-22T02:28:55+09:00
Subject: [ruby-talk:13993] Re: regexp problem ...

>>>>> "J" == Jens Luedicke <jens@irs-net.com> writes:

J> io = IO.popen("wget --dot-style=micro " + url)

 First I need to redirect stderr on stdout, i.e.

   io = IO.popen("wget --dot-style=micro " + url + " 2>&1")

J> out = io.readlines

J> for i in out 
J> 	print /(.)(\d+)(%]\n)/.match(i)[2], "\n"

 Best to write it like this

       if /(.)(\d+)(%]\n)/ =~ i
          puts $2
       end


 If the regexp don't match #match will return nil, and ruby will give an
 error message (method [] not found for nil)


Guy Decoux