Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses

|| die or or die :)

by snax (Friar)
on Jul 23, 2003 at 20:00 UTC ( #277316=note: print w/ replies, xml ) Need Help??

in reply to Re: Re: Re: Re: Re: system & shell metacharacters
in thread system & shell metacharacters

I'm just surprised that I've never seen a problem using it exactly as I've written it above, which I do with great regularity. The docs say that the calling signatures are

My syntax falls into the first case, but what constitutes an "EXPR"? I've got a string, the || operator, then the die -- does that qualify as an EXPR? I'll have to poke around the docs some more.....

Oh. Playing around with the right and wrong way shows me that my "|| die" syntax fails without die-ing.

Comment on || die or or die :)
Select or Download Code
Replies are listed 'Best First'.
Re: || die or or die :)
by ChemBoy (Priest) on Jul 23, 2003 at 20:41 UTC

    I've got a string, the || operator, then the die -- does that qualify as an EXPR?
    Yes, it does (as you seem to have discovered): since || is higher precedence than the comma, it's parsed roughly as open ( FILEHANDLE, ("filename" || die( ...) ) ); Since your string is always true, the die is never reached.

    If God had meant us to fly, he would *never* have given us the railroads.
        --Michael Flanders

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://277316]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others exploiting the Monastery: (8)
As of 2015-11-25 02:22 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (668 votes), past polls