Changes for Pugs 6.2.11.

Bundled Modules

New Perl 6 modules

• ext/Parse-Rule/ - A Rules engine port in perl 6
• ext/Rosetta/ - A federated relational database (incomplete)
• ext/Rosetta-Engine-Native/ - A back-end for Rosetta testing (incomplete)

Updated modules

• ext/File-Spec/ - Rewritten to define its own exported wrapper subs
• ext/Locale-KeyedText/ - Rewrote with a strong resemblence to the original
  • Split up translate_message() for more granular Translator usage
  • Objects now become something useful when coerced into a string
  • Added Locale::KeyedText::L::en , LKT now throws Message exceptions
  • Template Modules now have a different variable interpolation format
  • Created 2 running examples/ from pod that was removed from KeyedText.pm
  • Deleted old test suite (yet to be replaced); now only tests compilation
• ext/libwww-perl - Rewrote HTTP::Header::Util with gather/take syntax
• ext/Test - &fail renamed to &flunk to avoid conflict with builtin

Experimental modules (in misc/, not installed)

• misc/Parser-Mini/ - Experimental thin p6 parser
• misc/Rosetta-Incubator/ broken up:
  • Locale::KeyedText was merged into the rewritten one in ext/
  • SQL::Routine and Rosetta were merged together, became Rosetta in ext/
  • The license of Rosetta is now GPL (with extra linking provision)
  • Remainder (SQLBuilder, SQLParser, Eng/Generic, Emu/DBI) was deleted
• misc/sixpan/ - Prototype of new CPAN tools in Perl 5

Test, Examples and Documentations

• Add timing data prints to smoke harness, to help spot hanging/slow tests
• Tests in ext/ and t/ - Temporary workaround the breaking of use_ok
• Makefile.PL - Begins with an overview POD section on the build system
• TASKS - Tracking current things to do
• docs/AES/S17draft.pod - Draft synopsis for Perl 6's concurrency
• docs/AES/S22draft.pod - Draft synopsis for Perl 6's CPAN
• docs/articles/tpr.pod - An introduction article to Pugs
• docs/feather - Feather.perl6.nl web site
• docs/getting_started - Pointers for people new to Pugs
• docs/notes/context_coercion.pod - Notes on implementing contexts
• docs/notes/context_coersion.pod - Notes on implementing contexts
• docs/notes/docs_evil_plan.txt - Plan for Perl 6 documentation
• docs/notes/multimethods.pod - Description of the canonical MMD algorithm
• docs/p6doc/ - Perl 6 language tutorials and documentation
• docs/quickref/ - Various updates and improvements from new Synopses
• docs/quickref/fears - assorted fears about Perl 6
• examples/cookbook/ - New recipes
• examples/network/wiki/ - demo wiki
• examples/rpn/ - RPN calculator in Perl 6, Perl 6, and Haskell
• util/run-smoke.pl - Support for PUGS_SMOKE_EXCLUDE_EXT environment variable
• util/catalog_tests.pl - Annotate smoke reports with colored sources/specs

Feature Changes

• Adverbial number forms: :16<deadbeef> and :16[14,15]
  • This change obsoletes hex() and oct()
• Calling private methods with self!method
• Deep eager sequential evaluation (aka steamroll ) operator &prefix:<**>
• Multisub declarations in the same scope can now be exported selectively
• Named arguments are now decided at parse time, not as runtime Pair objects
• New YAML tree-dump backends: -C Parse-YAML , -C PIR-YAML , -C PIL1-YAML
• New \x[abcd] and \x[1,2,3,] forms instead of \x{abcd} in qq-strings
• New backend: -CParse-Pretty , to show a pretty parse tree
• Parameter syntax changes:
  • +$arg becomes :$arg
  • ++$arg and +$arg is required becomes :$arg!
  • ?$arg becomes $arg?
• Round-trip data serialization with .yaml and eval(..., :lang<yaml>)
• Support for multiline inputs in interactive shell
• The build system now supports Cygwin again
• Two or more underscores in numbers (eg. 1__0 ) is no longer accepted
• Unary ^ support: ^10 is a shorthand for 0..^10
• $+x is now accepted as a shorthand for $CALLER::x
• $CALLER::x now only sees env $x in outer dynamic scopes, not my $x
• $obj.clone support
• %*INC now contains module interface structures, not file system pathnames
• &die and &fail can take an object argument without stringifying it
• eqv is now spelled ===
• pugs file.p6 --options now passes options to the program, not to Pugs
• self is an alias for $?SELF
• use Module now imports its symbols lexically at the consumer's use time
• use Perl-6 parses correctly now

Bug Fixes

• Bareword foo.bar now always parses as ::foo.bar , never foo(.bar)
• Binding a block to &infix:<operator> in BEGIN time now affects parsing
• Fixed embedding of threaded parrot
• Fixed evaluation order in array and hash access
• Fixed splice on scalar
• Improved detection of null patterns; this fixes some endless loops
• Improved hash parsing. {("a"=>3),}.ref is again ::Hash, not ::Block
• Infix macros no longer cause parsefail
• Lazy {...} executes its closure at most once
• Method calls on simple index lookups now gets dispatched correctly
• Parse (but no implementation) for scoped packages
• When m:P5/(...)?/ captures nothing, $0 no longer evaluates to true
• $.foo.bar() correctly dispatches on the runtime type of $.foo
• &splice was destroying existing bindings on the array
• .perl stringification now escapes unprintable characters
• 1**Inf , 0**0 and Inf**0 are defined to 1 regardless of architecture
• 3..2 and 'z'..'a' return empty lists
• (1,2,3,4).elems no longer throws an exception
• zip(@a; @b; @c) no longer flattens the arrays together

Backends

JavaScript backend

• Division by zero raises an error, not return NaN like JS does
• Fix problems with [=>] and related operators
• New operators implemented: +| +& +^ +< +> ~& ~| ~^ +^ ~^
• PIL/JS compilation now works with exported multisubs
• Support for using Perl 5 modules in JavaScript backend via -B JS-Perl5
• $*PID
• .assuming
• FIRST {...} blocks
• state $variable
• unlink()

Parrot backend

• Parrot 0.4.1+ is now required for Parrot targeting and embedding
• Closure creation no longer triggers segfaults
• Lexical variables are now truly lexical instead of emulated by temps
• Upon program exit, embedded Parrot/Perl5 objects are finalized correctly
• Support for modules with lexical imports
• When looking for an external parrot, look in %ENV<PARROT_PATH> first

PIL^N backend

• New VM written in Haskell which uses the domain specific language PIL^N
  • Based on the Perl6-ObjectSpace prototype
  • Optionally built with make pil (and interactively as make pili )
  • See src/PIL/Native/ for the source code
• Class Meta-Model written and bootstrapped in PIL^N
  • Basic tests for Meta-Model in t/pil/
• Role Meta-Model partially complete in PIL^N
• Some basic Container types written in PIL^N
  • See docs/notes/piln_object_repr_types.pod for implementation notes
• Haskell implementation of Perl 6 Rules and precedence parser
  • See src/Text/Parser/ for the source code

Perl6-ObjectSpace

• Prototype Perl 5 backend, served as the inspiration for the PIL^N backend
  • Currently somewhat out of sync with PIL^N
  • See perl5/Perl6-ObjectSpace/ for the source code
• Core set of native types written in Perl 5
  • Class Meta-Model bootstrapped using only the native types
  • Role Meta-Model and Container types not yet supported
• Based on work from the perl5/Perl6-MetaModel/

Comments

[grumpY!]

audrey - you are an insane coder. i am glad you are on our side. thanks for your hard work and insane output.