in reply to How to insert || and && in an if loop

No need for the 'g' modifier.

Why not die with a message, rather than print and exit?

Other than that, assuming your else condition is pseudo-code, it looks like it ought to work.

But I'd probably do something like this: 

die "Either : already in string on the length is invalid\n"
      if $string =~ /:/ || length($string)!=16;

print "work on that string"

[download]

Update: Another non-working option: 

die "..." 
      if $string =~ /:|.{17}/;

[download]

See below. Thanks AnomalousMonk.

Replies are listed 'Best First'.
Re^2: How to insert || and && in an if loop
by AnomalousMonk (Archbishop) on Dec 17, 2011 at 21:59 UTC 
    die "..." 
      if $string =~ /:|.{17}/;

    [download]

    This accepts all strings less than 17 characters. perl514 wants only strings exactly 16 characters. 

    >perl -wMstrict -le
"my $string = 'foo';
 ;;
 die '...' if $string =~ /:|.{17}/;
 ;;
 print qq{processing '$string'};
"
processing 'foo'

    [download]
[reply]
[d/l]
[select]

In Section Seekers of Perl Wisdom