Dear monks,

I'm trying to do something that should be really simple, but it's not Doing What I Mean.

Somewhere in the code I am calling a $parser, and pass it, among other things, a file handle to read from (at least, that's the idea): 
open(FH, $opts{-file});
$opts{-handle} = \*FH;
$parser->from_handle(%opts);

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So, I have a hash %opts, that contains a file path under the -file key. I open the file, create a reference to the handle, assign that to $opts{-handle} and send the whole %opts hash to the $parser->from_handle method. Then, over in the from_handle method, the following happens: 
sub from_handle {
    my $self = shift;
    my %opts = @_;
    while (<$opts{-handle}>) {
        #... and here we're supposed to read from FH
    }
}

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Okay, so in the "while" loop I was hoping $_ would contain the contents of $opts{-file}, one line at a time. Instead, it contains "GLOB(0x18660a8)". I've read perldata and perlref but I'm not quite sure what is expected of me. I tried *FH{IO} and desparate permutations with or without slashes in front of *FH, but they don't give me what I want.

I am obviously doing something wrong, but I don't quite know what The Right Way is. Any help and code examples are greatly appreciated. Thanks!

In reply to Passing a file handle to a sub. I still don't get it. by rvosa

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