Yes. I think I came off as more negative towards Perl than I meant to. The point is that they are far simpler than ascii. They are quaternary data, and as such Regexes aren't really a good tool for modifying them any more than Regexes are a good tool for modifying raw binary, even if your binary is stored as a string of ascii characters.

There are other facilities of Perl though, in general its quick scripting, that make it as good a tool as any other, just so you don't get sucked into the idea that regexes are a good tool here.