Thx for the links but thats Chinese for me.

I'm not a versatile C programmer and AFAIK even C gurus get depressed when diving into perlguts.

(BTW: the first link is defunc)

> I imagine you might be able to peek at a regex structure using B,

that would be nice...

> but you can't get at the debug messages, they're not stored, and you can't hook DEBUG_COMPILE macros

What exactly do you mean with "debug messages"? The token tree with commands like OPEN1?

Or just message like

anchored "1234" at 0 (checking anchored) minlen 4 
Freeing REx: "(?<C>1)(?<D>2)(3)(?<A>4)"
[download]

The latter I don't need! =)