Ok. I think I have gotten to the heart of it. And like other things of this ilk, it looks to me like a bug or misfeature.

I would have thought this would work:

package B::Syntax;
sub compile {
    return sub {
    $O::BEGIN_output =~ /Syntax OK/ ? exit 0 : exit 1;
    }
};
1;

[download]

And then call with:

   # $prog_or_e_option = ... ; 
   system("perl -MO=-qq,Syntax $prog_or_e_option");
   # Test $?

[download]

Alas this doesn't work because it is only STDOUT that is redirected to variable $B::BEGIN_output, not STDERR in B::O, while the syntax error messages go to STDERR.

I guess I will have to seek guidance from perl5-porters.

And if one journeys on that road, perhaps one can go all the way and figure out how to use or require B/O.pm inside Perl.

In reply to Re^5: How to do perl -c inside perl? by rockyb
in thread How to do perl -c inside perl? by rockyb

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