For example, it seems common that people expect that do FILE will import lexicals (despite the docs).

Yeah, I see your (valid) point. And there's more to it:

• require does set $@ if the file included is not found or if the last evaluated statement doesn't return a true value (even propagates it from inside an eval), while do does not.
• do updates %INC regardless of compilation errors, while require does not.

So yes, using do FILE without really knowing what it does can give unexpected results - but that's true for many more wonderful perl constructs, our not being the last... ;-)

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}