Pm's #parrotsketch report for 2006-11-07

* Added <-alpha>, <alnum-[0]>, <alpha+digit-[J0]> etc. regexes to PGE.

* Updated the tcl grammar for changes in enumerated character class syntax
  (spaces in <[...]> must now be escaped).

* Fixed many cases in perl6 and APL where hashes now return NULL 
  instead of None.

* Helped debug c89/const conflicts in Tcl.

* Added a capture PMC to the core.
** Capture exposes a lot of issues with Parrot objects and inheritance.

* Worked on new implementation of PAST
** I think PAST nodes really should be based on Captures, but the
   PMC/object issues above are a bit of a block for that.
** I'm planning to implement Capture in PIR (instead of a PMC) in
   order to keep from blocking on this for now.

* Still awaiting resolution on HLL classnames and namespaces.

* Long discussion yesterday with particle and tewk about implementing
  CodeString in C (potentially significant performance gain there) and 
  handling slurpy/named parameters in PMC methods.

* Worked on switching perl6 to use new :init pragma (tewk++),
  as of 16:38 UTC :init wasn't working for subs in .pbc files.

* Worked on switching PGE to use new :vtable pragma (jonathan++),
  but it also doesn't work for .pbc files.  Example to be posted
  to RT #40626.

* Plan for this week: new PAST, adapt perl6 to new PAST implementation,
  have notes and tasks for hackathon attendees this weekend.