So I'm writing a little routine that takes three parameters - a string, an input file name, and an output file name - and it occurs to me that there are times when I don't want to pass an output file name to this procedure, but rather that I want to pass an already open filehandle or an IO::Handle object.

However, I still need to be able to accept a simple filename if given one. So how do I determine what I've been passed, and then use the filehandle? 

--
@/=map{[/./g]}qw/.h_nJ Xapou cets krht ele_ r_ra/;
map{y/X_/\n /;print}map{pop@$_}@/for@/

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In reply to Accepting either a filename or a handle by fizbin

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