| perl6 Perl 6 Summary for 2005-04-12 through 2005-04-19 |
All~
Sadly, a slip of the mouse cause me to delete a partially completed summary, so I am going to push ahead on the rewrite without a witty intro. Feel free to make one up for yourself involving stuffed animals, musicians, and dinner.
Autrijus release Pugs 6.2.0 marking the first major milestone for Pugs. This includes most of the control flow primitives of Perl 6 and is a testament to the solid work that all of the "lambdacamels" have been putting in.
BÁRTHÁZI András was having trouble encoding and decoding multi byte characters in CGI.pm.
This led to a general discussion of how to escape such characters in URLs as well as when to call chr .
http://groups-beta.google.com/group/perl.perl6.compiler/browse_frm/thread/750a78b4aba5ab30/18de224db1c6456a#18de224db1c6456a -- discussion
http://groups-beta.google.com/group/perl.perl6.compiler/browse_frm/thread/2583cd2ad56bcb8a/b146ba42087af46e#b146ba42087af46e -- more discussion
Matthew D Swank wondered if he really needed an extra set of parens to simultaneously call a function generator and its generated function. Autrijus told him that yes he did as Perl 6 is not quite Haskell yet.
BÁRTHÁZI András wanted to use the :i switch on P5 regexes.
Autrijus implemented it,
but Larry noticed that this introduced a flag ordering dependency.
As a result the new way to supply flags to a perl 5 regex is rx:P5<imsxg/.../ >.
Marcus Adair wondered if there were rules of etiquette he should obey when writing examples for the Perl 6 Cookbook. In particular, should examples run and be only one file. Ovid suggested that one file was a good idea, but was open to contrary arguments.
Thomas Klausner announced that on June 9-10 in Vienna Austria there would be a Hackathon featuring the collective might of Autrijus, Chip, Leo, and more. When that much brain power gets together only two things can happen: much hacking and much drinking.
BÁRTHÁZI András wanted to know if he could encode an illegal byte sequence in a string. Much discussion ensued, but Larry promised that it would be possible.
Yuval Kogman announced the release of two new modules to CPAN which provid Pugs smoke html.
http://groups-beta.google.com/group/perl.perl6.compiler/browse_frm/thread/2bb8a11c2456fdce/f27a8093b5667c5e#f27a8093b5667c5e -- announcement
http://nothingmuch.woobling.org/pugs_test_status/ -- smoke em if you got em
Roie Marianer noticed that pugs was missing some quoting constructs and implemented them. This led to discussion of interoplation and corners cases. As usual Larry provided both answers and questions. Roie produced a patch which Autrijus applied.
http://groups-beta.google.com/group/perl.perl6.compiler/browse_frm/thread/bb1969aa24008431/f7eb1b0d77d6e3cd#f7eb1b0d77d6e3cd -- discussion
http://groups-beta.google.com/group/perl.perl6.compiler/browse_frm/thread/209d5a637ab00993/e7eb743f074c8f8d#e7eb743f074c8f8d -- useful pugs hacking pointer
Stevan Little found some bugs with passing a code block to a function in pugs. Warnock applies.
Stevan Little has been playing with push, pop, shift, and unshift on infinite lists. He thinks he has found a bug, although maybe he just hasn't let it run long enough... Larry provided answers as to the correct semantics.
http://groups-beta.google.com/group/perl.perl6.compiler/browse_frm/thread/727e096e9985ffc6/2f200d6cf002ecda#2f200d6cf002ecda -- shift unshift
Jonathan Worthington noticed a Win32 issue in the Makefile. He can point to the offending line in the autogenerated makefile, but that is not where it should be fixed. Warnock applies.
David Christensen provided a patch for hyperoperators. Unfortunately, character set transcodings ate his patch.
Stevan Little noticed that shift did not act like pop. Larry noted that the example were not semantically valid, but even so Pugs should not freeze.
Aaron Sherman managed to make Pugs segfault. Autrijus thinks it might already be fixed.
William Coleda provide the second of his patched to move Perl*PMC out of the core. Leo applied it.
jreiks (Jens?) reported a difficult to reproduce bug. This caused Leo to pine for having the SVN revision in the bug report. Brent 'Dax' Royal-Gordon commented that this was a good idea. Jens Rieks offered to implement it.
Jerry Gay tried to get SDL working on Windows. There was some give and take, but in the end he got his wish.
Andy Dougherty provided a patch making Configure.pl provide a link flag to ICU headers if provided. Jens Rieks applied it.
Roger Hale noticed a small problem with parrotcode.org. Robert Spier fixed it.
François Perrad fixed a MinGW test failure. Leo applied the patch.
Andy Dougherty fixed an old bug with LD_OUT having trailing space. Leo applied the patch.
Jerry Gay cleaned some warnings from the source tree. Leo applied most of the patch.
Philip Taylor fixed a small Win32 path issue. Leo applied the patch.
Leo found a bug in <cmp>_p_i_ic opcodes.
Nick Glencross provided a patch fixing an unitialized variable in SDL. Leo applied the patch.
Nicholas Clark found a bug in morph for PerlScalar. Leo verified that it wasd a bug, and Nick Glencross offered to fix it.
Leo threatened to continue with his plan to simplify infix methods. No one objected...
Nick Glencross wanted a warning for using unset variables in imcc. Leo pointed out that this was not as simple as one might like.
Jerry Gay provided a patch removing more files under make clean in Win32. Warnock applies.
Nick Glencross provided a patch which fixes some typos in docs. chromatic applied it with a few extra tweaks.
BÁRTHÁZI András wondered about the general security mechanisms that Parrot would provided. Dan assured him that security would be a fundamental part of Parrot. He also provided a sketch of the security model which sparked some discussion.
Falls Huang reported a build failure on Debian-arm. Leo provided a pointer in the write direction.
François Perrad notice that `make src/revision.c` couldn't handle .svn/entries. Jens Rieks fixed the problem.
Adam Preble put out a call for some general advice on understanding Parrots JIT. Leo provided some general dvice.
Cory Spencer provide a patch changing getattribute to throw a real_exception. Jens applied the patch with a few tweaks.
Jerry Gay provided a patch to suppress stderr during 'bc' configure step. There was some debate on how to make this cross platform. I don't think there was a resolution.
Nick Glencross provided a patch fixing a few segfaults in string.c. Jens applied it.
Ron Blaschke added ICU to the linkage for Win32. Jens applied the patch.
Ron Blaschke updated the README.win32 document. chromatic applied the patch.
http://groups-beta.google.com/group/perl.perl6.internals/browse_frm/thread/a511e0acef3f8b43/bfb9fed4636e8d30#bfb9fed4636e8d30 -- discussion before the patch
Our pumpking Leo has some big changes underway and asked someone else to man the pumps for a little while. Jens volunteered to be someone.
Dan has some very ugly generated code. It takes a LONG time to compile. Leo sped it up by giving Parrot more registers.
Nick Glencross found some weirness with .const in IMCC. Warnock applies.
Bloves was hoping to get a pointer on PMC writing. Leo provided a helpful pointer.
Jens noticed that "&&" in commands cause problems on some platforms. Michael G Schwern fixed it, and Jens applied the patch.
Leo continued his slow but steady migration to a more MMD like world.
MMD 25 - multiply
Leo wants to have useful config information available at runtime. Steven Philip Schubiger offered to try.
Leo opened a ticket for removing some outdated files.
Steven Philip Schubiger provided a patch fixing some small spelling errors. He worried that perhaps he was needless picking nits. I don't think so, but Warnock applies.
François Perrad fixed a small mistake in the naming of icudt.lib. chromatic applied the patch.
Cory Spencer has succeed in making LISP run on Parrot and uncovered a few GC bugs in the process. Everyone was impressed.
Kevin Tew wondered what the state of pyrate was. Sam Ruby provided a general explanation.
Philip Taylor posted a few questions about Parrot for help with Carrot, his C to Parrot Compiler. Leo and Chip provided a few answers.
Gerard Lim announced YAPC::NA with much information and useful links.
Yuval Kogman through out the idea of using subscripts as objects. Larry worried that this would hurt speed a little too much.
Paul Seamons posted some examples involving local scopes and statement modifiers. Larry decided that only curlies would delimit scopes, so as not to surprise too many people.
Juerd posted a question from the p6cookbook asking about spaces vs tabs. Larry took a guess as to the context and pointed to A2 for info.
Juerd wondered what sort of character classes matched nonbreaking spaces. Larry replied that they did, but possulated a <bws> class for breaking whitespace.
Marcus Adair wondered about trim and words and if they actually existed.
It seems that trim will exist all though words might be spelled «$string».
There was some complaining that character classes are difficult to type. This is considered a feature as character classes do not handle internaionalization well.
Marcus Adair wants an easy way to compare floats with a fudge factor.
Larry seemed to feel that some DWIMery could be added to ~~ .
Michael G Schwern wanted a simple tied variable interface to $*CWD. This is apparently a sensitive topic. Much discussion ensued of changing directory in bizarre circumstances. It looks like Michael's suggestions will not reach the core, although it looks like a fairly simple module...
Brad Bowman noticed an error in some examples involving junction precedence. Larry confirmed there error. Patrick R. Michaud fixed it.
Steven Philip Schubiger found a spelling error in A06. Patrick R. Michaud applied the patch.
Larry decide that the range operator in character classes should change to .. .
Much discussion ensued.
I like it.
BÁRTHÁZI András wondered if he could mark variables as tainted. Luke Palmer showed him a way.
Aaron Sherman wants a way to redeclare variables without getting a warning.
He suggested temp .
Larry suggested ok to turn off a warning,
but doesn't think Aaron's feature is really necessary.
No official ruling yet (I think).
David Christensen wants to use hyper slices as a convenient way of dealing with multi dimensional data structures. Luke Palmer showed him how.
David Christensen wondered how hyperoperators would know what to pad with when one side is not long enough. The answer appears to be slightly ill defined magic. Especially where subtraction or division is concerned
Gaal Yahas wants to have an alarm function that takes a double (for systems with sub-second timing proises). He also wants a version that takes a callback (possibly called later). Warnock applies.
David Christensen wants junctions in subscripts to autothread. Luke palmer commented that they might. I think they do...
Roie Marianer had a few questions about how interpolation and quote operators would work. Laryy and Juerd provided some answers. Larry's short version: "we pretend we're a top-down parser even if we aren't".
David Christensen wants to use adverbs to supply exceptions to junctions. Luke Palmer told him it doesn't work that way.
lam Fayland found an oddity in pugs evaluation order for ++ .
Warnock applies.
Dave Whipp wants to use statement modifiers to restrict the scope for variables in his print statements. Larry provided a different technique.
Ingo Blechschmidt wondered what syntax to use for tieing hashes. Larry began to muse alloud.
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