> > No information about the input that causes the > error; are there also inputs > not causing an error?
Yes, the input expected would be: " 32 11 25" or "32 11 25 " or " 32 11 25 " ...etc. > > What you want is something like > > /^\s*((?:\d+\s*?)+)\s*$/ > > The inner (?:) does not capture output (see perldoc > perlre), > and the regex trims the input (which is allowed to > contain leading and > trailing space) > This worked superbly for what I'm doing. :-) I found reference to "?:" on page 204 of the "Camel Book", but it isn't enough info to tell how to use it. I'm looking into 'perldoc perlre' righ now. Thanks, for giving me another resource. :-) > The if-else could be shortened to (untested, so > please check): > > die "Bla" unless > ($userIn)=$userIn=~/^\s*((?:\d+\s*?)+)\s*$/; > Right; a lot shorter. Why, the parentheses around $userIn? > > my @numbers = split( / /, $userIn ); > > This only splits on a single space character. > > my @numbers = split /\s+/, $userIn; > > splits (explicitly) on the same whitespace allowed > in the regex above. I changed this too. Thanks, Hans! > > [irrelevant parts snipped away] Ron Smith [EMAIL PROTECTED] -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
