Re: How do I get Pod::Simple to extract pod from its containing file?

On 01/26/2013 07:44 PM, Russ Allbery wrote:
> Karl Williamson <[email protected]> writes:
>> On 01/26/2013 02:23 PM, Russ Allbery wrote:
>>> Karl Williamson <[email protected]> writes:
>
>>>> With Pod::Parser, you just do
>>>> 	parse_from_file($in_fh, $out_fh)
>
>>>> and it outputs the pod to $out_fh.  Pod::Simple has a method of the same
>>>> name which is supposed to emulate the Pod::Parser method, but when I run
>>>> it, nothing is output.
>
>>> Did you flush $out_fh?  Pod::Parser did that but Pod::Simple doesn't, so
>>> it's possible if you're doing something short that the entire output was
>>> still buffered.
>
>>> Pod::Man and Pod::Text use this Pod::Simple method and do have test suites
>>> for it and it seems to work.
>
>> See the attached program.  The resultant file is 0 length.
>
> Oh!  I misunderstood, sorry.  parse_from_file() does indeed invoke the
> parser with the appropriate actions, but what you meant was that
> Pod::Parser's "null" parser, when not subclassed, just printed the POD
> back out again, so you could use it as a way to extract the POD from a
> file.  I believe Pod::Simple's "null" parser does nothing at all, so you
> get an empty file.
>
> Yes.  I think that's an incompatibility.
>

If I turn on DEBUGing, it's doing a lot.  Is there some trivial way to 
extract the pod?