Re: Announce: Rakudo Star 2010.12 released

2010-12-31 Thread Daniel Carrera
Out of curiosity, is it possible to get Rakukdo to talk to C, C++ or Fortran?

On Thu, Dec 30, 2010 at 8:04 PM, Patrick R. Michaud pmich...@pobox.com wrote:

 On behalf of the Rakudo and Perl 6 development teams, I'm happy to
 announce the December 2010 release of Rakudo Star, a useful and usable
 distribution of Perl 6.  The tarball for the December 2010 release is
 available from http://github.com/rakudo/star/downloads.

 Rakudo Star is aimed at early adopters of Perl 6.  We know that
 it still has some bugs, it is far slower than it ought to be, and
 there are some advanced pieces of the Perl 6 language specification
 that aren't implemented yet.  But Rakudo Perl 6 in its current form
 is also proving to be viable (and fun) for developing applications
 and exploring a great new language.  These Star releases are
 intended to make Perl 6 more widely available to programmers, grow
 the Perl 6 codebase, and gain additional end-user feedback about the
 Perl 6 language and Rakudo's implementation of it.

 In the Perl 6 world, we make a distinction between the language
 (Perl 6) and specific implementations of the language such as
 Rakudo Perl.  The December 2010 Star release includes release #36
 of the Rakudo Perl 6 compiler [1], version 2.11.0 of the Parrot
 Virtual Machine [2], and various modules, documentation,
 and other resources collected from the Perl 6 community.

 This release of Rakudo Star adds the following features over the
 previous Star release:
  * New .trans algorithm
  * Configuration improvements
  * More bug fixes

 There are some key features of Perl 6 that Rakudo Star does not
 yet handle appropriately, although they will appear in upcoming
 releases.  Thus, we do not consider Rakudo Star to be a
 Perl 6.0.0 or 1.0 release.  Some of the not-quite-there
 features include:
  * nested package definitions
  * binary objects, native types, pack and unpack
  * typed arrays
  * macros
  * state variables
  * threads and concurrency
  * Unicode strings at levels other than codepoints
  * pre and post constraints, and some other phasers
  * interactive readline that understands Unicode
  * backslash escapes in regex [...] character classes
  * non-blocking I/O
  * most of Synopsis 9
  * perl6doc or pod manipulation tools

 In many places we've tried to make Rakudo smart enough to inform the
 programmer that a given feature isn't implemented, but there are
 many that we've missed.  Bug reports about missing and broken
 features are welcomed at rakudo...@perl.org.

 See http://perl6.org/ for links to much more information about
 Perl 6, including documentation, example code, tutorials, reference
 materials, specification documents, and other supporting resources.
 An updated draft of a Perl 6 book is available as
 docs/UsingPerl6-draft.pdf in the release tarball.

 The development team thanks all of the contributors and sponsors
 for making Rakudo Star possible.  If you would like to contribute,
 see http://rakudo.org/how-to-help, ask on the perl6-compi...@perl.org
 mailing list, or join us on IRC #perl6 on freenode.

 Starting with the January 2011 release, Rakudo Star releases will be
 created on a three-month cycle, or as needed in response to important
 bug fixes or improvements.  The next planned release of Rakudo Star
 will be on January 25, 2011.

 [1] http://github.com/rakudo/rakudo
 [2] http://parrot.org/




-- 
No trees were destroyed in the generation of this email, but a large
number of electrons were severely inconvenienced.


Re: Announce: Rakudo Star 2010.12 released

2010-12-31 Thread Moritz Lenz
On 12/31/2010 03:31 PM, Daniel Carrera wrote:
 Out of curiosity, is it possible to get Rakukdo to talk to C, C++ or Fortran?

For C, see https://github.com/jnthn/zavolaj
Fortran uses the same calling conventions, albeit with weird name
mangling rules that depend on the compiler. So you can use Zavolaj for
Fortran too, if you're ready to suffer.

Cheers,
Moritz


Re: Questions for Survey about Perl

2010-12-31 Thread Paul Makepeace
On Tue, Dec 28, 2010 at 23:02, Gabor Szabo szab...@gmail.com wrote:
 We will have questions about usage of Perl 5 and we think there should
 be also questions
 about Perl 6.

Should Perl 6 be called something else?
   * No
   * Yes, not sure what
   * Yes, []

Maybe a question on perceived benefits for an alternative name.

(It's quite apparent this is a very different language at the very
least syntactically  I'm inclined to join others I've read in saying
Yes)

Paul


Re: Questions for Survey about Perl

2010-12-31 Thread Daniel Carrera
On Fri, Dec 31, 2010 at 7:17 PM, Paul Makepeace pa...@paulm.com wrote:
 On Tue, Dec 28, 2010 at 23:02, Gabor Szabo szab...@gmail.com wrote:
 We will have questions about usage of Perl 5 and we think there should
 be also questions
 about Perl 6.

 Should Perl 6 be called something else?
   * No
   * Yes, not sure what
   * Yes, []

 Maybe a question on perceived benefits for an alternative name.

 (It's quite apparent this is a very different language at the very
 least syntactically  I'm inclined to join others I've read in saying
 Yes)

That would suggest that Larry Wall is soliciting ideas for a name
change, which is not the case.

I would not that it is not unheard of for a language to change
significantly but keep the name. If you look Fortran 2008 (just to
pick an example I'm familiar with) it looks *nothing* like FORTRAN II.
I'm no expert, but I believe KR's original C language was noticeably
different from C99.

For amusement, below I include the same program in FORTRAN II and
Fortran 90. The program uses Heron's formula for finding the area of a
triangle (http://en.wikipedia.org/wiki/Heron's_formula):

1) FORTRAN II  (note that all the indentations are significant!!!)

C READ FROM CARD READER UNIT 5
  READ INPUT TAPE 5, 501, IA, IB, IC
  501 FORMAT (3I5)

C COMPUTE AREA
  799 S = FLOATF (IA + IB + IC) / 2.0
  AREA = SQRT( S * (S - FLOATF(IA)) * (S - FLOATF(IB)) *
 + (S - FLOATF(IC)))

C OUTPUT TO LINE PRINTER UNIT 6
  WRITE OUTPUT TAPE 6, 601, IA, IB, IC, AREA
  601 FORMAT (4H A= ,I5,5H  B= ,I5,5H  C= ,I5,8H  AREA= ,F10.2,
 +13H SQUARE UNITS)
  STOP
  END


2) Fortran 90:

program heron
integer :: a,b,c
real :: s, area

! Read from stdin.
read (*,*) a,b,c

! Compute the area.
s = ( a + b + c)/2
area = sqrt( s * (s-a) * (s-b) * (s-c) )

write (*,*) a,b,c,area
end program

-- 
No trees were destroyed in the generation of this email, but a large
number of electrons were severely inconvenienced.


Re: Questions for Survey about Perl

2010-12-31 Thread Tom Christiansen
In-Reply-To: Message from Daniel Carrera dcarr...@gmail.com
   of Fri, 31 Dec 2010 20:20:33 +0100. 

 For amusement, below I include the same program 
 in FORTRAN II and Fortran 90.

That was delightful -- thanks!

--tom


Re: Questions for Survey about Perl

2010-12-31 Thread Daniel Carrera
On Sat, Jan 1, 2011 at 1:26 AM, Chas. Owens chas.ow...@gmail.com wrote:
 On Wed, Dec 29, 2010 at 21:39, Xue, Brian brian@amd.com wrote:
 I want to adding one more answer about what are people waiting for before 
 they
 start using Perl 6.

 There hasn't an official release of PERL6.0, just Rakudo. I'm afraid of 
 Rakudo is cancelled, I don't want to make my product based on an uncertainty 
 matter.
 snip

 This shows a fundamental misunderstanding of what Perl 6 is.  As far
 as I know there will never be a release of Perl 6.0 (it definitely
 won't be PERL6.0).  Perl 6 is a specification and a set of tests.  Any
 program that can pass the test suite and conforms to the specification
 IS a Perl 6.  Right now the program that passes the most tests and
 conforms most closely to the specification is Rakudo.


But Xue still has a valid point that even the Perl 6 spec doesn't exist yet.


-- 
No trees were destroyed in the generation of this email, but a large
number of electrons were severely inconvenienced.


Re: Questions for Survey about Perl

2010-12-31 Thread Richard Hainsworth



On 01/01/11 03:41, Daniel Carrera wrote:

On Sat, Jan 1, 2011 at 1:26 AM, Chas. Owenschas.ow...@gmail.com  wrote:

On Wed, Dec 29, 2010 at 21:39, Xue, Brianbrian@amd.com  wrote:

I want to adding one more answer about what are people waiting for before they
start using Perl 6.

There hasn't an official release of PERL6.0, just Rakudo. I'm afraid of Rakudo 
is cancelled, I don't want to make my product based on an uncertainty matter.

snip

This shows a fundamental misunderstanding of what Perl 6 is.  As far
as I know there will never be a release of Perl 6.0 (it definitely
won't be PERL6.0).  Perl 6 is a specification and a set of tests.  Any
program that can pass the test suite and conforms to the specification
IS a Perl 6.  Right now the program that passes the most tests and
conforms most closely to the specification is Rakudo.


But Xue still has a valid point that even the Perl 6 spec doesn't exist yet.

Moreover, a survey should be testing perceptions, even if the 
perceptions contradict what some feel are facts. It sometimes pays to be 
agnostic about what can be counted as a fact to learn how other people 
think. Eg., in the real world there are those who perceive as fact the 
timeline of the history of life as set out in the Old Testament of the 
Bible, and there are those that look to other mechanisms for testing 
timeline theories, such as a the geological record. Dont want to start a 
religious war, just wanting to indicate that a survey can be useful if 
worded in a value-free manner.