Re^4: Loop through array or filehandle

Interestingly, data from an HTTP::Request, when split by \n into an array, only loops to the first empty line and then the while loop stops. If the data from the request is written to a file then the while loop works as expected.

The only work around I can find at the moment is to

$data =~ s/^$/ /gsm

Not ideal, but better than working out why an empty line from an HTTP::Request GET signals a termination of a while() loop.

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Re^5: Loop through array or filehandle by Laurent_R (Canon) on Sep 30, 2016 at 16:57 UTC
In Perl, an empty string is deemed to be false, therefore it will stop the `while` loop. The `while` loop should probably be amended to check for definedness rather than truth. I cannot test now on my mobile device, but will come back with a proposed solution as soon as I get a chance to test it.	[reply] [d/l] [select]
Re^5: Loop through array or filehandle by AnomalousMonk (Archbishop) on Sep 30, 2016 at 17:34 UTC
I.e.: `my $iter = create_iter(...); ... while (defined(my $line = $iter->())) { do_something_with($line); }` [download] Give a man a fish: `<%-{-{-{-<`	[reply] [d/l] [select]
Re^6: Loop through array or filehandle by Laurent_R (Canon) on Sep 30, 2016 at 22:13 UTC
Yeah, that's exactly what I was thinking about, but I did not want to suggest anything without testing.	[reply]