Re: getting rid of nested sub lexical problem

[Dan Campbell]

[EMAIL PROTECTED] wrote:
> 
> Due to forgetfulness I was recently bitten by the infamous "my() Scoped
> Variable in Nested Subroutines" problem using Apache::Registry, and it got
> me thinking about whether it is fixable.
> 
> >From the diagnostics:
>   This problem can usually be solved by making the inner subroutine
>   anonymous, using the sub {} syntax.  When inner anonymous subs that
>   reference variables in outer subroutines are called or referenced, they
>   are automatically rebound to the current values of such variables.
> 
> I think it should be possible for Registry to pre-process the source code
> to turn all top-level named subroutines into sub refs. For example,
> convert subroutines of the form
> 
>   sub foo {  }
> 
> into
> 
>   sub foo { &{ sub {  } } }
[snip]

I think it would be easier to convert

   sub foo

into

   local *foo = sub


That way, you don't have to parse for the matching right brace.
Something like:

   s/sub\s+(\w+)/local *\1 = sub/msg; # untested - just a guess

might do the trick.

--
Dan Campbell

Re: Perl as DSO...whats wrong with it, specifically?

[Dan Campbell]

The one trick that finally enabled me to get mod_perl to 
work as a DSO with IBM's WebSphere on AIX was a utility
named rtl_enable.  There were a few changes I had to make
to one of mod_perl's makefiles (apaci/Makefile, I think) to
get libperl.so to build, but even then httpd would segfault
as soon as mod_perl attempted to load a perl XS module.

But, now I run 'rtl_enable libperl.so', then replace libperl.so
with the file that gets generated.  I still have to be careful
about what I put in startup.pl, but at least it works.

Perl 5.005_03, mod_perl 1.24, IBM C for AIX 5.0, and 
WebSphere 2.02.
--
Dan Campbell