Are you asking how to create subroutines/functions? perlsub

Are you asking how to create modules or objects? perlmod, perlmodlib, perlobj, perlref, perlreftut, perltoot, perlboot, perltooc, and of course Moose.

Are you asking how to use Perl's internal API (intended for extending and embedding via C/XS)?: perlguts, perlcall, perlxstut, perlapi, Inline::C, Inline, Inline::C-Cookbook, perlembed, perlxs, h2xs (and a large investment of time required)

Could you maybe just give a small example of what you're trying to accomplish? You need to accomplish X, you believe Y is how to get there. But maybe Z is a better approach. Since we don't know what X is, and it's unclear what you mean by Y, we don't know if you're on track or if Z really would be better.

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