Simon Cozens <[EMAIL PROTECTED]> opined:
> On Tue, Jun 05, 2001 at 11:25:09AM +0100, Dave Mitchell wrote:
> > This is the bit that scares me about unifying perl ops and regex ops:
> > can we really unify them without taking a performance hit?
>
> Coupl'a things: firstly, we can make Perl 6 ops as lightweight as we like.
>
> Second, Ruby uses a giant switch instead of function pointers for their
> op despatch loop; Matz says it doesn't make that much difference in
> terms of performance.
I think it would be very messy to have both types of operands in the same
dispatch loop. I'd much rather have a 'regex start' opcode which
calls a separate dispath loop function, and which then interprets any
further ops in the bytestream as regex ops. That way we double the number
of 8-bit ops, and can have all the regex-specific state variables (s, send
etc in the earlier example) and logic separated out.
> I don't know if I've mentioned this before, but
> http://www-6.ibm.com/jp/developerworks/linux/001027/ruby_qa.html
> was my interview with Matsumoto about his ideas for Perl 6 and his experiences
> from Ruby. It's in Japanese, so http://www.excite.co.jp/world/url/ may help.
"A talk of jewelry
Perl developer From Mr. Simon Cozens to Ruby developer It is also as a pine
It dies and is the question and reply to Mr. [squiggle]"
:-)
