* hw2005.txt - Allison's reviews.

git-svn-id: http://svn.pugscode.org/pugs@4456 c213334d-75ef-0310-aa23-eaa082d1ae64

docs/talks/hw2005.txt

@@ -9,8 +9,8 @@
 Perl is a general-purpose language, known for its vast number of freely
 available extension libraries.  The Perl 6 project was started in 2000
 to create a more robust runtime environment and improve the language's
-support for multi-paradigmic programming.  However, attempts at producing a
-concrete implementation failed to take off in the first 4 years.
+support for multi-paradigmic programming.  However, the attempt at producing a
+concrete implementation remains a work in progress after 4 years of development. 
 
 This paper presents Pugs, a working implementation of Perl 6, written in
 Haskell.  We review the challenges posed by Perl 6's unusual execution model,
@@ -228,7 +228,7 @@ unsuitable as a basis for implementing the parser for Perl 6.
 
 3.2. P6C
 
-Started in 2002, P6C was the first concrete implementation of Perl 6.  It is
+Started in 2002, P6C was the first concrete prototype of Perl 6.  It is
 written in Perl 5 and distributed as one of the language prototypes in the
 Parrot codebase.  Instead of Perl6::Rules, P6C uses the Parse::RecDescent
 module to construct a recursive-descent parser for Perl 6.
@@ -246,15 +246,15 @@ making it prohibitively difficult to reason about the execution.  Because P6C
 cannot check the resulting assembly code for correctness, subtle bugs often
 go unnoticed for a long time.
 
-P6C's development continued for two years, eventually stalled in 2004.  As of
-this writing, it can handle a few builtins, simple expressions, basic rules
-matching and user-defined functions.  It provides no support for BEGIN blocks,
-"eval", modules and objects; code generated by P6C cannot interoperate with
-other languages targetting Parrot.
+P6C's development continued till 2004, at which time work on it was
+discontinued in favor of PGE.  In its final state, it could handle a few
+builtins, simple expressions, basic rules matching and user-defined functions.
+It provides no support for BEGIN blocks, "eval", modules and objects; code
+generated by P6C cannot interoperate with other languages targetting Parrot.
 
 3.3. PGE and PAST
 
-In February 2005, Perl 6 developers announced a revised bootstrapping plan,
+In July 2004, Perl 6 developers announced a revised bootstrapping plan,
 based on two new projects:
 
 * Parrot Grammar Engine (PGE), a compiler that takes Perl 6 Rules and
@@ -264,8 +264,9 @@ based on two new projects:
   of PIR programs as Parrot objects.
 
 The developers intend to define Perl 6's grammar as a set of Rules that produce
-Parrot AST objects.  Once PGE is capable of processing those rules, one can
-reimplement PGE in Perl 6 to finish the bootstrapping process.
+Parrot AST objects.  Once PGE is capable of processing those rules, PGE/PAST
+will effectively become a Perl 6 to Parrot compiler; from there we can make
+their APIs available as Perl 6 modules, completing the bootstrapping process.
 
 As of this writing, both PGE and PAST are under active development.  A subset
 of Python's AST has been ported to Parrot, along with a yacc/lex-based parser