On Thu, Jun 11, 2009 at 10:51 AM, Michael Alipio <daem0n...@yahoo.com>wrote:
> > Hi, > > I have a program that computes the number of elapsed minutes and seconds. > > > if the outputs are: > > 2 minutes, and 8 seconds. > > How do I print those two values to look like "Elapsed time: 02:08" > > Thanks! > > > > > -- > To unsubscribe, e-mail: beginners-unsubscr...@perl.org > For additional commands, e-mail: beginners-h...@perl.org > http://learn.perl.org/ > > > What I would do (though there are many other ways of course) $text = "2 minutes, and 8 seconds"; $text =~ /(\d{1,2}).*?(\d{1,2}).*/; $text = sprintf("%02d:%02d", $1, $2); print "Elapsed time: $text\n"; Using a regular expresion I take the first 1 or 2 digits, then anything in the middle is ignored, and the next 1 or 2 digits are taken out. Then then in text I using sprintf place the two values captured in the regex, prepending a 0 in case it is only one digit putting a : in the middle. Then all I do is print the thing and you are done. Of course you can as I said do it in many different ways but this is the simplest...
