Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

Re: optional command line arguments

by influx (Beadle)
on Aug 07, 2012 at 20:39 UTC ( #986078=note: print w/ replies, xml ) Need Help??


in reply to optional command line arguments

How about using prototypes to emulate your own block?

sub block(&) { shift->(); } my $a = shift @ARGV || block { print "Enter value for a:"; <STDIN> }; print "$a\n";

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://986078]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (4)
As of 2016-08-28 22:42 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    The best thing I ever won in a lottery was:















    Results (396 votes). Check out past polls.