I completely appreciate that. 'Tis always a case of striking a balance. Even battle hardened code with countless edge-cases can be well factored. A system progr

I completely appreciate that. 'Tis always a case of striking a balance. Even battle hardened code with countless edge-cases can be well factored. A system programmer whose opinion I trust greatly recently advised me to look at the postgress code for well factored, battle hardened code. I've heard others suggest that libgit2 is similar. I don't feel confident / qualified enough to comment.