On 6/11/09 Thu Jun 11, 2009 1:51 AM, "Michael Alipio"
<daem0n...@yahoo.com> scribbled:
>
> 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"
This is how I would do it (untested):
my $text = '2 minutes, and 8 seconds';
if( $text =~ m{ (\d+) \s* minutes .* and \s* (\d+) \s* seconds }x ) {
printf "Elapsed time: %02d:%02d\n";
}else{
print "Invalid format: $text\n", $1, $2;
}
Note that it is important to test whether the regular expression matches
before using the capture variables $1 and $2.
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
