Re: RFC 184 (v1) Perl should support an interactive mode.

[Peter Scott]

Have you seen http://search.cpan.org/doc/GREGOR/psh-0.008/doc/psh.pod and 
the other tools it references?  I haven't used it/them myself - what you 
propose has never itched enough for me to scratch it with anything more 
than a one-liner - but it appears to have the kind of features you 
want.  Does what you want need to be in the core?
--
Peter Scott
Pacific Systems Design Technologies