Re: [MacPerl] Testing for Defined

[rjk@linguist.dartmouth.edu (Ronald J. Kimball)]

Christian Brechbuehler wrote:
> 
> MacPerl complained to Richard Gordon:
> > # Value of <HANDLE> construct can be "0"; test with defined().
> 
> 
> Excerpt of message (sent 19 January 1999) by David Turley:
> > while (defined($the_input = <INPUT>)){
> > 
> > This makes sure your while loop won't end prematurly if a line in
> > <INPUT> contains only '0'.
> 
> 
> You must set $/="0" to make this happen, or is there another way?
> 

It can happen with any value for $/:

{input record separator}0{EOF}


Ronald

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