Stories
Slash Boxes
Comments
NOTE: use Perl; is on undef hiatus. You can read content, but you can't post it. More info will be forthcoming forthcomingly.

All the Perl that's Practical to Extract and Report

use Perl Log In

Log In

[ Create a new account ]

chromatic (983)

chromatic
  (email not shown publicly)
http://wgz.org/chromatic/

Blog Information [technorati.com] Profile for chr0matic [technorati.com]

Journal of chromatic (983)

Sunday June 20, 2010
02:40 PM

Perl 6 Design Minutes for 26 May 2010

[ #40408 ]

The Perl 6 design team met by phone on 26 May 2010. Larry, Allison, Patrick, Will, and chromatic attended.

Larry:

  • :() syntax is now always signature
  • we now use foofix:[...] as the general op form instead of foofix:(...)
  • refactored the sematics of :nth and :x
  • :nth() now only ever takes a monotonically increasing list
  • S03 now explains how "not-raising" works on != and ne
  • it now basically matches the intuitions of an English speaker via HOP definition of negate metaop
  • STD sometimes didn't require semi between statements
  • statement modifiers are expression terminators but not valid statement terminators
  • an unexpected statement modifier word like if could terminate one statement and start another
  • fixed up backslashes in character classes to allow \s etc and reject \u etc
  • STD was accidentally using the same lexpad for different multis
  • Cursor now treats :() on name extension as a signature always, never as a categorical
  • we shouldn't introduce the stopper for circumfix until we're in the circumfix, or we can't use the same char on both ends
  • placeholder messages error messages are now much more informative and correct
  • we now disallow use of placeholder after same variable has been used as a non-placeholder, even for an outer reference
  • renamed add_macro (which it doesn't) to add_categorical (which it does)
  • participating frequently in discussions on semantics both on irc and p6l
  • working closely with sorear++ as he brings viv closer to bootstrapping, yay!
  • soon can bootstrap past gimme5

Allison:

  • worked on Pynie this week in my limited spare time
  • one goal is to generate the parser directly from the Python grammar
  • wrote a small, lightweight PEG parser which generates a match tree from the Python 3 grammar
  • can generate a lexer directly
  • right now it creates a parse tree
  • looks similar to the match nodes of NQP-rx
  • dumps out a tree to the PIR parser
  • working on PaFo elections for next year, but trying to delegate those
  • will have more time after June 7

Will:

  • working on Perl 6 advent tests
  • many more people are doing more work than me
  • liasing with Rakudo folks for any important Parrot bugs before the Rakudo Star release
  • my current direction there is "don't break anything"

Patrick:

  • sorear added hash flattening to NQP
  • lots of work on closures in PAST and NQP
  • they properly clone
  • fixes some lexical problems
  • need to get that to work in Rakudo
  • that's tougher; Rakudo has to wrap Parrot subs
  • wrapper object needs cloning as well, along with its attributes
  • we'll add a new PAST node type to help
  • that node understands contexts
  • essentially a way to add void context optimizations to your AST
  • that solves many problems in Rakudo beyond closures
  • added a setting into NQP along with its test suite
  • not automatically loaded, but available
  • contains standard hash and array methods
  • Parrot's ops2c project uses those
  • other people can update and enhance that setting as necessary
  • NQP also has the ability to parse type names
  • NQP doesn't do anything with them yet
  • eventually they'll allow the use of multis
  • cleaning up some NQP bugs regarding lexicals and package storage of subs
  • Bruce Keeler enabled variable interpolations in regexes
  • working on some refactorings to simplify that approach
  • works in NQP and Rakudo now
  • that's a feature we've never had before
  • Rakudo's REPL now works better, thanks to sorear
  • HLLCompiler now written more in NQP as part of that
  • NQP now can do eval
  • NQP remembers lexicals in interactive mode now
  • adding that to Rakudo is more complex
  • working on that
  • pleased with the progress on #perl6

c:

  • reviewing long term plans for GC and Lorito
  • should have more time free soon
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
 Full
 Abbreviated
 Hidden
More | Login | Reply
Loading... please wait.