»ö« Welcome to Perl 6! | perl6.org/ | evalbot usage: 'p6: say 3;' or rakudo:, or /msg camelia p6: ... | irclog: irc.perl6.org or colabti.org/irclogger/irclogger_logs/perl6 | UTF-8 is our friend!
Set by moritz on 22 December 2015.
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audiatorix Hey dudes. I'm still adjusting to 6's new regex system. Any idea why the following is producing this error?: No such method 'Letter' for invocant of type 'Match' 00:23
my regex arg { <Letter>+ } 00:24
my regex call { <arg>[\,\s*<arg>]* }
'aa' ~~ /<call>/ # error produced here
raschipi Where is letter defined? 00:25
audiatorix It's one of the defaults, no?
Or does it need to be L?
Same error with L
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mr_ron rakudo: my regex arg { <:Letter>+ }; say so "abc" ~~ /<arg>/ 00:28
camelia True
audiatorix Ah, needs the colon
raschipi Yeah, it's missing the : to be a chaachter class.
audiatorix Right, so char classes need colons and other regexes do not 00:29
Thanks
raschipi There's <alpha> without the colon too. 00:30
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raschipi as a predefined subrule as you asked for 00:30
audiatorix Yeah just saw that
I was just testing out my knowledge before writing something more complicated to parse basically function calls 00:31
making a templater
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AlexDaniel switching to another laptop is harder than moving to another place :-S 00:41
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raschipi audiatorix: remember to call a predefined regex with a dot in front to supress capture: 00:54
m: say 'abc' ~~ /<alpha>+/; say 'def' ~~ /<.alpha>+/
camelia ｢abc｣
alpha => ｢a｣
alpha => ｢b｣
alpha => ｢c｣
｢def｣
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b2gills AlexDaniel: I was locked out of my password manager once, because I was using a laptop that I hadn't used recently. (I eventually found a way to get in) 01:02
AlexDaniel b2gills: :O 01:03
b2gills It required using the /info cmd on IRC to get an IP address to SSH into
AlexDaniel being locked out of your password manager sounds really horrible 01:05
I do have backups of my passwords *somewhere*… maybe I should practice the emergency situation :-/ 01:06
raschipi AlexDaniel: Make sure you can restore from your backups, it's important. 01:07
AlexDaniel well, my passwords is the only thing I have to backup. All code I write is in git repos (so also pushed somewhere), everything else I really don't care about 01:09
not that I wouldn't be sad for a minute or two if I lose it, but I am not spending my time trying to create backups for it :)
raschipi Buy a strong box and store your passwords there. 01:11
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AlexDaniel alternatively, just upload it to github… then I only have to backup my private key :D 01:12
raschipi How to you want to use your private key to access github without it's password? 01:13
AlexDaniel it can be a public repo 01:14
raschipi Instead make it passwordless, then. Then just keep it safe. 01:16
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audiatorix Any idea why this regex is invalid?: -<[ \$ \, ]>+ 01:34
What I'm trying to achieve is "anything but literal $ or literal , one or more times"
geekosaur shouldn't that start with <-[ instead of -<[ ? 01:35
audiatorix Ah, so it should 01:36
What's the logic behind that?
[] on their own simply group 01:37
geekosaur same reason an older regex does something different with [-... vs. -[...
<> is a meta-operation of some kind, - prefix means invert, [] is char class. vs. without the <>, [ ] is non-capturing group 01:38
audiatorix Ah okay, that's what I was thinking once I saw the answer
geekosaur the first character after a < in a < > is special, - inverts the metaop, . prevents capturing (used with named rules like <ws> or <digit>) etc.
(this is oversimplifying a bit) 01:39
audiatorix Cool 01:40
So, different question: in a grammar, how do I specify that, in a given place, either token A or token B may appear?
geekosaur A | B 01:42
audiatorix <A> | <B> ?
AlexDaniel yea
geekosaur with brackets around if it's part of a larger thing e.g. <foo> [ <bar> | <baz> ] <quux> 01:43
AlexDaniel or maybe || if you care about order and not about longest token matching
audiatorix And if I needed to use that more than once, would throwing it in a sub-regex make sense (so that a new token doesn't need to be created for it) 01:45
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AlexDaniel “sub-regex”? 01:46
I guess there's no problem with creating another token for it. But I don't know what would be the best practice
audiatorix named regex
I'm thinking if I make another token, it will make the structure more complex where it doesn't need to be 01:47
geekosaur um, they all add the same complexity
they just have different default behaviors
(i.e. different default flags on the things they create, like :sigspace or :ratchet etc.) 01:48
audiatorix Ah
dang, I was thinking for some reason that `regex` didn't become part of the resulting structure when parsing
geekosaur they're all just specialized variants of methods 01:49
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geekosaur the closest you get to not adding more structure is an interpolating variable that isn't treated as a literal <$foo> and that has other issues, including performance and potential security concerns 01:51
[Coke] n
~>OA
audiatorix Okay, I'll just have it twice in the TOP token 01:52
[Coke] ... weird.
audiatorix not a huge deal
Thanks a ton
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raschipi audiatorix: I gave you the answer above, put them into another method but call it with a dot to avoid making the capture more complex. 01:55
m: say 'abc' ~~ /<alpha>+/; say 'def' ~~ /<.alpha>+/ 01:56
camelia ｢abc｣
alpha => ｢a｣
alpha => ｢b｣
alpha => ｢c｣
｢def｣
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audiatorix Oh, so you did. My bad 01:59
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raschipi audiatorix: Did my suggestion work? 04:18
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Geth doc/split-and-rephrase-lines-in-footer: c108ce774f | (Zak B. Elep)++ | 2 files
Split and rephrase lines in the footer

The first paragraph/line was getting too long, so split it a bit and rephrase to emphasize source location and actions to either report issues and/or edit/fork.
Fixes #1535.		 07:24
doc/split-and-rephrase-lines-in-footer: 4cff7ee700 | (Zak B. Elep)++ | lib/Pod/Htmlify.pm6
:lipstick: phrasing for "from POD6 at perl6/doc"...

  "From POD6 from perl6/doc" sounds odd...
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piojo Have others gotten this error when trying to build?: "Unhandled exception: Unable to allocate an array of 8 elements" 07:40
The first instance of the error is: 07:42
perl.exe -MExtUtils::Command -e cp 3rdparty\dyncall\dyncallback\\*.h .rakudobrew\moar-blead-nom\install\include\dyncall Unhandled exception: Unable to allocate an array of 8 elements at <unknown>:1 (src/vm/moar/stage0/ModuleLoader.moarvm:) from <unknown>:1 (src/vm/moar/stage0/ModuleLoader.moarvm:<dependencies+deserialize>) from <unknown>:1 (src/vm/moar/stage0/nqp.moarvm:<dependencies+deserialize>)
building on windows, and it worked last time I tried.
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travis-ci Doc build passed. Zak B. Elep ':lipstick: phrasing for "from POD6 at perl6/doc"... 07:45
travis-ci.org/perl6/doc/builds/273197377 github.com/perl6/doc/compare/c108c...ff7ee700c1
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piojo_ lemme ask a different question: the *best* way to build, if I'm not lazy, is to set up different directories for each repository and build/install each one separately? 08:01
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piojo_ Or do developers also use rakudobrew? It can't tell whether it's versatile enough to find the commit that breaks the build, for example 08:02
raschipi I don't think anyone that builds on windows hangs around on IRC... 08:04
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raschipi piojo_: I think you're the closest thing to a windows expert as there is in Perl6. 08:07
El_Che stmuk_builds star on windows as well, so he probably knows more about the win build process 08:11
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piojo_ raschipi: haha. Someone must have made perl6 run on windows! 08:16
raschipi: oh, I see. is stackoverflow a better place to go for windows-specific questions? 08:17
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raschipi I have no idea where you'll fing perl6-on-windows users to help you, sorry. 08:18
piojo_ thanks. forget windows, then 08:19
Is the right way to build perl6 to build nqp, moar, and rakudo one at a time?
and to consider them separate projects which should be debugged (and git-bisected) totally separately? 08:20
El_Che: is stumuk_ the person who makes star releases for win? 08:22
*stmuk_, I mean
tyil is there a zef command I can use to make it install all deps from a given META6.json? 08:29
zakame cd to where the META6.json is then `zef install --deps-only .` 08:30
tyil thanks :>
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Geth doc: c108ce774f | (Zak B. Elep)++ | 2 files
Split and rephrase lines in the footer

The first paragraph/line was getting too long, so split it a bit and rephrase to emphasize source location and actions to either report issues and/or edit/fork.
Fixes #1535.		 08:34
doc: 4cff7ee700 | (Zak B. Elep)++ | lib/Pod/Htmlify.pm6
:lipstick: phrasing for "from POD6 at perl6/doc"...

  "From POD6 from perl6/doc" sounds odd...
doc: 3444fe4033 | (Rafael Schipiura)++ (committed using GitHub Web editor) | 2 files
Merge pull request #1541 from zakame/split-and-rephrase-lines-in-footer

Split and rephrase lines in the footer
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stmuk_ piojo_: yes I build star on Windows every three months, although it's not my main platform of choice 08:46
piojo_ stmuk_: by the way, thank you for that service! 08:47
stmuk_: so if I want to debug build problems, I should work with 3 separate repositories for nqp, moar, and rakudo?
stmuk_ yes and that applies to all platforms 08:48
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sumdoc how to enabe autocompletion in Perl 6 REPL? Any idea? 08:48
Autocompletion 08:49
piojo_ stmuk_: thanks. I assume the READMEs in the code are enough, without a lot of custom setup needed? (I'm not thinking modules, just the core perl6) 08:50
stmuk_ yes
I use mingw gcc as shipped with strawberry perl or MSVC should also work 08:51
raschipi sumdoc: You need linenoise.
stmuk_ at least for 64 bit (I don't think anyone has done a 32 bit build for a while)
raschipi github.com/hoelzro/p6-linenoise/#tab-completion
piojo_ stmuk_: thanks, that's what I'm using too. I'll try to get it working, or at least find the bad commit soon 08:52
stmuk_ ci.appveyor.com/project/rakudo/rak...o5hwnug90w suggests the windows build is fine
piojo_: I'll also try a build very shortly
piojo_ stmuk_: I think moar is the problem, not rakudo
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sumdoc raschipi linenoise or readline !! Which one better? 08:53
stmuk_ yes that's usually the issue
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raschipi sumdoc: readline doesn't have tab completion. 08:54
sumdoc raschipi OK lemme build with linenoise
raschipi what do you say about rlwrap? 08:55
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raschipi I use rlwrap, but it also doesn't have tab completion. 08:56
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piojo_ raschipi: does rlwrap interfere with tab completion, if you use rlwrap+linenoise? 08:57
raschipi I never tried it. 08:58
piojo_ and can linenoise be configured for <esc><backspace> to delete a whole word like it does with readline?
eh, I should just read the docs. I'm sure it's answered somewhere
raschipi zakame: your code is in effect now, go have a look. 08:59
zakame thanks raschipi !
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sumdoc raschipi OK I am going with Linenoise. But what was good about rlwrap than linenoise u r using rlwrap. Just a curiosity!! 09:06
raschipi I don't install modules. 09:07
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sumdoc raschipi Thanks 09:07
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raschipi Oh oh... 09:18
docs.perl6.org/routine.html has a ton of 404 links... 09:19
docs.perl6.org/routine/.= for example 09:20
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tyil I'm trying to run perl6 on FreeBSD, but I got the error "Missing serialize REPR function for REPR VMException (BOOTException)" 09:29
it runs fine on Funtoo
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tyil also, how would I go about running a perl 6 program as a daemon? 09:48
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stmuk_ tyil: I just built using rakudobrew on FreeBSD 11.1 and it worked fine for me 09:53
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tyil hmm 09:54
stmuk_ maybe you have stuff hanging around from a older build?
tyil the program I'm trying to run is github.com/scriptkitties/musashi, the command Im using to run it is perl6 -I/home/musashi/musashi/lib /home/musashi/musashi/bin/musashi.pl6 09:55
sumdoc Linenoise build is failing in rakudo Any help?
github.com/hoelzro/p6-linenoise/issues/22
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tyil no, its a new vm with perl 6 built for the first time last night 09:55
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tyil if it matters, I did not use rakudobrew, but just cloned github.com/rakudo/rakudo and ran perl Configure.pl --gen-moar --gen-nqp --backends=moar 09:56
sumdoc Are there any dependencies for Linenoise? 09:57
stmuk_ sumdoc: just a C compiler 09:59
tyil stmuk_: if I run the program as a service (github.com/scriptkitties/musashi/b...sashi.rc), it starts correctly 10:02
but it doesnt run as a background service yet, so that would be my next issue
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stmuk_ piojo_: yes I can reproduce the windows build failure "Unhandled exception: Unable to allocate an array of 8 elements" 10:27
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HoboWithAShotgun good day you wonderful people. what's the perl 6 way of constraining a class' attribute? 10:44
Skarsnik has Int $.attribute ? 10:45
HoboWithAShotgun like i want a "has $.radians" that will only accept values between -pi and + pi
timotimo if you want extra constraints, define a subset type and use that there
m: subset Radians of Real where -pi < * < pi; class A { has Radians $.r }; say try A.new(r => 1); say try A.new(r => 4)
camelia A.new(r => 1)
Nil
Skarsnik fun 10:46
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Juerd -pi to +pi? Why not 0 to tau? 10:47
timotimo actually, any value between -Inf and Inf is a value in radians :P 10:48
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Juerd Sure, but if you're limiting, wouldn't it make sense to limit that to 0 <= r < tau? 10:49
timotimo m: say tau
camelia 6.28318530717959
piojo_ stmuk_: thanks. I intend to do a git rebase, but I won't be able to until monday 10:50
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HoboWithAShotgun ah, my code involves triangles, so only values between 0 and 90° make sense 10:58
180° sorry
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HoboWithAShotgun but it works, thanks. at first tests failed, but then i realized <= instead of < 11:00
+ i need
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HoboWithAShotgun allright, i now have this class: hastebin.com/kinucobije.pl which allows values between -360 and 360 degrees 11:16
how do i now derive Angle::Triangle from that wich is identical only so it limits between 180 and -180 11:17
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HoboWithAShotgun also, can i override the error message that i get when i assign an ivalid value to my subtype? 11:20
Skarsnik probably with subset again ?
HoboWithAShotgun goes rtfm 11:21
Skarsnik m: class A { has $.x}; subset B of A where $.x < 20; say try A.new( a => 30; say try B.new( B => 30);
camelia 5===SORRY!5=== Error while compiling <tmp>
Variable $.x used where no 'self' is available
at <tmp>:1
------> 3ss A { has $.x}; subset B of A where $.x7⏏5 < 20; say try A.new( a => 30; say try B
expecting any of:
term
Skarsnik m: class A { has $.x}; subset B of A where $.x < 20; say try A.new( x => 30; say try B.new( x => 30);
camelia 5===SORRY!5=== Error while compiling <tmp>
Variable $.x used where no 'self' is available
at <tmp>:1
------> 3ss A { has $.x}; subset B of A where $.x7⏏5 < 20; say try A.new( x => 30; say try B
expecting any of:
term
timotimo github.com/zoffixznet/perl6-Subset-Helper 11:26
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timotimo stmuk_: did you see what i wrote in #moarvm? 11:48
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stmuk_ timotimo: I have now! 12:03
I have to go out shortly but can quickly look now and slowly look later 12:04
timotimo OK!
i hope it'll be enlightening
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[Coke] (windows) I have a build I run occasionally. 12:08
updated rakudo, rebuilding... 12:11
(also if you're having a windows build issue, msvc or gcc?) 12:12
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sumdoc I have updated the blog. Added about mounting the folder. sumdoc.wordpress.com/2017/09/06/ho...-notebook/ 12:24
[Coke] I can't duplicate a win64 failure with strawberry perl, msvc, and nom/master/master 12:25
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galx how can I use perl6 on WinXP 12:27
?
timotimo oh, huh, i don't know if anybody has tried that before 12:28
have you tried just building it and seeing where it fails? 12:29
galx no, but I can try
[Coke] ... xp?
galx I have an old laptop with winxp installed 12:30
i know it's crazy yeah :)
timotimo building rakudo will need more than 1gb of ram
jnthn If it's 64-bit then can always try one of the MSIs
timotimo huh, i wasn't actually aware that windows xp already came in 64bit variants 12:31
but i guess 64bit processors are not new at all
galx it's 32 12:32
[Coke] github.com/rakudo/rakudo/blob/nom/...windows.md might help
galx thank you!
[Coke] ... you may not have a version of VS2017 you can install; it is possible to build just using strawberry perl's toolchain. 12:33
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jast windows xp x64 is fairly rare 12:33
timotimo we don't require a very new visual studio
[Coke] (ugh, also my MD formatting is wonky there, if anyone wants to try to clean that, I'd appreciate it. :|
timotimo: right, 2017 was just the one available in the demo copy of windows I grabbed. 12:34
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sumdoc -- 13:38
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sumdoc Is there a perl 6 package to work with web API? 14:35
moritz HTTP::UserAgent 14:39
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moritz back from vacation 14:42
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timotimo also WWW and the curl bindings 15:02
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b2gills .ask TimToady I would like your input on a document for implementors of Perl 6 dialects since there are currently 2 that I know of gist.github.com/b2gills/7e2781dfd7...59bd751115 15:05
yoleaux b2gills: I'll pass your message to TimToady.
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HoboWithAShotgun I managed to create a Num variable that contains 10 which is not equal to 10 15:40
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timotimo cool, what's your num - 10? 15:41
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HoboWithAShotgun 1.77635683940025e-15 15:47
but then why does it print as 10?
p6: my $l = sqrt(2) * 10; my $d = 45; my $r = $d / 360 * tau; my $y = sin( $r ) * $l; my $x = sqrt( $l**2 - $y**2 ); say $x == $y; 15:48
camelia False
HoboWithAShotgun the trig functions and tau probably produce rounding errors 15:49
p6: my $l = sqrt(2) * 10; my $d = 45; my $r = $d / 360 * tau; my $y = sin( $r ) * $l; my $x = sqrt( $l**2 - $y**2 ); say $x; say $y; 15:53
camelia 10
10
tbrowder .tell nine I just filed issue #101 with Inline::Perl5; failure using Expect::Simple
yoleaux tbrowder: I'll pass your message to nine.
HoboWithAShotgun see? outputs as 10 even though x is 10.00000000...whatver
half an hour wasted 15:54
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HoboWithAShotgun .tell mum I gonna be late for dinner 15:58
yoleaux HoboWithAShotgun: I'll pass your message to mum.
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ilmari tbrowder: works for me 16:33
This is Rakudo version 2017.08-79-g4b02b8aad built on MoarVM version 2017.08.1-110-gab28683b2 16:34
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ilmari how do you get the version of a loaded module in perl6? like perl5's Foo->VERSION or $Foo::VERSION? 16:38
ugexe in perl6 its just $*REPO.need(CompUnit::DependencySpecification.new(:short-name<Foo>)).distribution.meta<ver> 16:39
Skarsnik 'just' 16:41
ilmari ah, so intuitive
very discoverable
moritz we might want a shortcut for that :-)
ugexe also it only works for ::Installable repos, ::FileSystem ones dont set a CompUnit.distribution 16:42
github.com/rakudo/rakudo/pull/1132 would allow it to work with ::FileSystem however. 16:43
the short-cut would be to somehow hook up META6.json info to ::Foo.^ver 16:44
ilmari huh, doesn't perl6's -M take an import list? 16:46
ugexe i dont think our -M does anything but take the short name 16:47
e.g. `-M "Test:ver<6.c>"` does not work while `-e 'use Test:ver<6.c>` does 16:49
ilmari wanted to write a V module like perl5 has
perl5 -MV=Foo # shows all versions of Foo in @INC
ugexe all versions of Foo in @INC doesn't mean the same thing as in perl6 though 16:51
ilmari all versions in $*REPO.repo-chain? 16:53
ugexe let me rephrase: it wouldnt suffice for determining which version of something will get used 16:54
i guess thats the same as @INC though with use lib, so nm 16:55
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ingy I just noticed that: perl6 -e 'say "ok" while True' | head 16:57
doesn't terminate like perl5 does 16:58
ilmari Unhandled exception: Failed to write bytes to filehandle: Broken pipe
but exit status zero?! 17:00
ingy that's bash
the exit code of head
ilmari doh
ugexe m: say $*REPO.repo-chain.map(*.?installed()).grep(*.defined).map(*.Slip).grep({ .meta<name> eq "Test" || (.meta<provides>{"Test"}:exists) }).map(*.meta<ver version>.first); # this is the logic part anyway
camelia (v6.c)
ingy I don't get the broken pipe 17:01
it just hangs
ilmari yes, with set -o pipefail (not popefail, as I first typed) it shows exit status 1 from perl6
which version?
This is Rakudo version 2017.08-79-g4b02b8aad built on MoarVM version 2017.08.1-110-gab28683b2
ingy python -c 'while True:print("ok")' | head # gives a broken pipe
yes | head # seems like nice behaviour 17:02
This is Rakudo version 2017.04.3 built on MoarVM version 2017.04-53-g66c6dda
on mac
ilmari perl5 exits with status 141 but no message
ingy so does `yes` ! 17:03
141
that's a 13
141 - 128
ilmari which is SIGPIPE 17:04
but now, pubtime!
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ingy so that's probably what perl6 should do 17:05
if anyone cares
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BooK I'm testing radical changes to Bool by taking all concerned lines from src/Perl6/Metamodel/BOOTSTRAP.nqp and in src/core/Bool.pm and s/Bool/Foo/ to test them faster, and in isolation, without needing to recompile between attempts 18:25
is that something that could work?
Right now, I get: Type 'stub' is not declared. Did you mean 'Sub'? 18:26
so I assume I need to load some definition for stub
jnthn For code in CORE.setting it's often a fine approach
For something that is so bootstrap-sensitive, there's a very high chance of things not working when put back later
`stub` is actually a non-standard language extension only in NQP, for the sake of the bootstrap. It doesn't exist in real Perl 6. 18:27
So that bit can't really be copied out, but you could simulate it with a stub class in full Perl 6
my class Foo { ... }
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BooK ok 18:28
the line I was replacing was: my stub Bool metaclass Perl6::Metamodel::EnumHOW { ... }; 18:29
so just dropping the stub would do it 18:30
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cono is there any way to define alternation in regexp with backtracking ? 18:36
yoleaux 6 Sep 2017 12:43Z <Zoffix> cono: the latest and greatest Rakudo has a fix for your issue. You should be getting your Any again: github.com/rakudo/rakudo/commit/d0d105b8b6
cono already seen this, thanks :) 18:37
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cono gist.github.com/cono/30bd639285662...daa29471b0 so, I want if <number> fails it backtrack and tries <tree-op> token 18:38
| - longest, || - left associated, I want some "\\" which going to be left associated but with backtracking, so if first token in alternation fails, it tries next one 18:41
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cono in this case: 1 + 2 + 3, will be something like expr( tree-op(tree-op(number(1), op('+'), number(2)), op('+'), number(3)) ) 18:44
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jnthn cono: Are you writing this in a token/rule? 18:51
ah, you linked code and I missed it :)
Geth doc/molecules-patch-2: 65cf7b1d1b | (Christopher Bottoms)++ (committed using GitHub Web editor) | doc/Type/IO/Socket/Async.pod6
Fixed three space indent
BooK how can I initialize a sigilless version of Bool to do the equivalent of the stub in npq? I think my \Bool2 := ...; and then I can call the stuff found in bootstrap on that new name, the first of which would be Bool2.HOW.set_base_type(BooK, Int); 18:53
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BooK etc 18:54
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BooK I want to first build a Bool2 identical to the regular Bool, and then tweak it so that it can do the Enumeration role, and we can remove the duplication 18:54
jnthn BooK: Probably something like Metamodel::EnumHOW.new_type(:name('Bool2')) 18:55
cono: The thing is that token (and rule) mean that backtracking state should *not* be retained
cono: || if a regex will indeed backtrack
cono: If you replace token with regex in the first 3 rules it seems to work out
moritz or maybe my \Bool2 = Bool but Enumeration; 18:56
Geth doc: d15be280c7 | (Christopher Bottoms)++ (committed using GitHub Web editor) | doc/Type/IO/Socket/Async.pod6
Does this resolve #1538?

Does simply removing the `if` statement resolve #1538?
doc: 65cf7b1d1b | (Christopher Bottoms)++ (committed using GitHub Web editor) | doc/Type/IO/Socket/Async.pod6
Fixed three space indent
doc: c0596fe916 | (Jonathan Worthington)++ (committed using GitHub Web editor) | doc/Type/IO/Socket/Async.pod6
Merge pull request #1540 from perl6/molecules-patch-2

Does this resolve #1538?
BooK moritz: the plan is to test writing a different implementation of Bool, without having to recompile every time I change a thing
so writing Bool2 without depending on Bool explicitely, just copy-pasting
jnthn bbl 18:58
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BooK m: BEGIN { use nqp; my \Bool2 := Metamodel::EnumHOW.new_type(:name<Bool2>, :base_type(Int)); Bool2.HOW.set_base_type(Bool2, Int); } 19:00
camelia 5===SORRY!5=== Error while compiling <tmp>
An exception occurred while evaluating a BEGIN
at <tmp>:1
Exception details:
5===SORRY!5=== Error while compiling
Base type has already been set for Bool2
at :
cono jnthn: thanks! :) 19:01
BooK m: BEGIN { use nqp; my \Bool2 := Metamodel::EnumHOW.new_type(:name<Bool2>); Bool2.HOW.set_base_type(Bool2, Int); } 19:02
camelia ( no output )
BooK mmm
I think that failed later 19:03
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BooK right, it gave me: getstaticcode requires a static coderef 19:09
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BooK I guess I'm now deep in the guts, and my only operation tool knowledge relates to a spoon 19:10
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moritz if you install methods with add_method or so, you might needs to wrap the code in nqp::getstaticcode() 19:11
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BooK moritz: the error comes from this line: Bool2.HOW.add_method(Bool2, 'key', nqp::getstaticcode(sub ($self) { nqp::getattr_s(nqp::decont($self), Bool2, '$!key'); })); 19:19
tbrowder ilmari: my bad, my Inline::Perl5 was too old--an upgrade fixed it. I think I'll add a cron job to upgrade all modules every week or so...
BooK so I guess the question is "how do I make that sub a static coderef?
tbrowder .tell nine my version was too old, closing issue 101
yoleaux tbrowder: I'll pass your message to nine.
BooK (going to lose network soon, the plane is about to take off) 19:21
moritz BooK: looks good to me, assuming that $!key is set up correctly first 19:24
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moritz how do I access the actions object inside a grammar? 20:03
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moritz ah, self.actions 20:13
Geth doc: 9826038dd1 | (Moritz Lenz)++ | doc/Type/Cursor.pod6
Document Cursor.actions
 20:17
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Geth doc: c65e01f3a8 | (Moritz Lenz)++ | doc/Type/Match.pod6
Document Match.actions
 20:24
moritz book-driven development
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BooK while in the plane I played around with IO::Socket::INET, and got this strange behaviour 20:55
This code: say "Accepted {IO::Socket::INET.new(:localhost<localhost>, :localport(4444), :listen).accept}";
does what's expected when running `telnet localhost 4444`, but hangs with `nc localhost 4444` 20:56
Skarsnik does localhost is ipv6?
BooK more importantly, nc dies this: localhost [127.0.0.1] 4444 (?) : Connection refused
the default for INET is ipv4 20:57
Skarsnik connect does not pass the Inet family for example
I would not be surprised listen does not the then xD 20:58
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Skarsnik yep it's ignored 21:00
ugexe :localhost<127.0.0.1> 21:01
BooK Skarsnik: so telnet is doing ipv6 and nc ipv4 ? and perl6 defaults to ipv6 ?
Skarsnik moar does not use the sa-family from Rakudo at all
BooK, moar will get what is the first sa family the system return for localhost 21:02
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geekosaur actually that would be a bit odd because telnet6 is not quite the same protocol 21:02
Skarsnik for me it's ipv6
geekosaur hm, looks like linux's does merge them these days though 21:03
so you'd want to verify with: telnet -4 ...
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Skarsnik not sure if that should be fixed or just documented x) 21:04
BooK you're saying that the socket new gets the famiky from the name rsolution? 21:06
Skarsnik yes
github.com/MoarVM/MoarVM/blob/mast...ket.c#L302 and github.com/MoarVM/MoarVM/blob/mast...ket.c#L270 21:07
BooK so even if I passed an explicit family it would overriden by the one from the resolution
Skarsnik yes, since it's never used 21:08
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BooK well if name resolution returns several candidates, it could look at the family and pick 21:08
Skarsnik I think IO::Socket::INET is not really the focus but more IO::Socket::Async
BooK I think it should be vonsidered a bug and will try to write it up 21:10
Skarsnik I could patch up since I already added stuff in that (to add source address and source port in connect) 21:11
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galx m: 21:23
I have a problem 21:25
pastebin.com/vMvRFr8M
I want `a` token to match "abc def" and `b` token to match "etc." 21:26
but it fails anyway
how to do that correctly?
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BooK Skarsnik: reading your links now 21:44
oh so it's in MoarVM? 21:45
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BooK where is the link between rakudo and moarvm done? nqp? 21:46
Skarsnik probably rakudo/core/io/Socket/INET.pm6 ? 21:48
there is no nqp side for connect
MasterDuke BooK: generally yes, nqp:: ops are implemented by moarvm 21:49
cono m: grammar Grammar { regex TOP { ^^ <a> <ws> <b> $$ }; regex a { <word>+ % <ws> }; token word { <alpha>+ }; regex b { <alpha>+ "." }; }; Grammar.parse("abc def etc.").say
camelia ｢abc def etc.｣
a => ｢abc def｣
word => ｢abc｣
alpha => ｢a｣
alpha => ｢b｣
alpha => ｢c｣
ws => ｢ ｣
word => ｢def｣
alpha => ｢d｣
alpha => ｢e｣
alpha => ｢f｣
ws => ｢ ｣
…
cono galx: ^^
Skarsnik buggable, find listen 21:50
cono by doing <alpha>+ % "something> you are asking to make <alpha> "something" <alpha> "something" up to infinity
Skarsnik don't remember wich bot allow to grep in the code x)
BooK right, github.com/rakudo/rakudo/blob/nom/...ET.pm#L122 and github.com/rakudo/rakudo/blob/nom/...ET.pm#L132
so in there, there is a default of PIO::PF_INET i.e. IPv4 21:52
cono and rule also should be changed to regex, to make backtracking mechanism possible
MasterDuke Skarsnik: greppable6 searches all the ecosystem modules
BooK but the name resolution is not done there
Skarsnik yeah and moar does not get this info
BooK note sure what $PIO is here: github.com/rakudo/rakudo/blob/nom/...ET.pm#L117
MasterDuke s: IO::Socket::INET.new, 'listen'
SourceBaby MasterDuke, Something's wrong: ␤ERR: Type check failed in binding to parameter '&code'; expected Callable but got Nil (Nil)␤ in sub do-sourcery at /home/zoffix/services/lib/CoreHackers-Sourcery/lib/CoreHackers/Sourcery.pm6 (CoreHackers::Sourcery) line 42␤ in sub sourcery at /home/zoffix/services/lib/CoreHackers-Sourcery/lib/CoreHackers/Sourcery.pm6 (CoreHackers::Sourcery) line 33␤ in block <unit> at -e line 6␤␤
BooK s: IO::Socket::INET.new, :listen # I think 21:53
SourceBaby BooK, Something's wrong: ␤ERR: ===SORRY!=== Error while compiling -e␤Unable to parse expression in argument list; couldn't find final ')'␤at -e:7␤------> <BOL><HERE><EOL>␤
BooK s: IO::Socket::INET.new( :listen ) # better
SourceBaby BooK, Something's wrong: ␤ERR: ===SORRY!=== Error while compiling -e␤Unable to parse expression in argument list; couldn't find final ')'␤at -e:7␤------> <BOL><HERE><EOL>␤ 21:54
MasterDuke s: IO::Socket::INET.new, \(:listen)
SourceBaby MasterDuke, Something's wrong: ␤ERR: Earlier failures:␤ Nothing given for new socket to connect or bind to. Invalid arguments to .new?␤ in block <unit> at -e line 6␤␤Final error:␤ Cannot resolve caller sourcery(Failure, Capture); none of these signatures match:␤ ($thing, Str:D $method, Capture $c)␤ ($thing, Str:D $method)␤ (&code)␤ (&code, Capture $c)␤ in block <unit> at -e line 6␤␤
BooK anyways
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BooK github.com/perl6/nqp/blob/master/s....nqp#L2047 # this is where the link is made, right? 21:58
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BooK Skarsnik: github.com/MoarVM/MoarVM/blob/mast...#L231-L233 # this look interesting 22:01
perlpilot cono: I dunno ... using token like that is a good habit to get into. It's only the `a` rule that really needs backtracking.
cono BooK: you can look to my series of ticket to add get_port op: github.com/MoarVM/MoarVM/pull/602, there is a cross links between moar nqp and rakudo
perlpilot: a and TOP 22:02
b should token, agree 22:03
should be*
Skarsnik BooK, na it's just to tell you the returned type for this function is not good if you get a ipv6 stuff, but it kinda work since the 2 struct for ipv4/ip6 start the same 22:04
anyways, time for bed ^^ 22:05
perlpilot m: grammar G { rule TOP { <a> <b> }; regex a { <word>+ % <.ws> }; token b { <word> \. }; token word { <.alpha>+ }; }; say G.parse("abc def etc.");
camelia ｢abc def etc.｣
a => ｢abc def｣
word => ｢abc｣
word => ｢def｣
b => ｢etc.｣
word => ｢etc｣
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BooK cono: well, I'm not wanting to add a new op, just fix this one 22:06
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cono perlpilot: heh, thanks. works indeed 22:07
BooK well, I disagree with Skarsnik: MVM_io_resolve_host_name is what returns the socket to be used, and if the Perl6 IO::Socket::INET gave a family, that should be a hint on which to pick when there's a choice 22:08
github.com/MoarVM/MoarVM/blob/mast...ket.c#L242 # result here is a linked list 22:09
but moar just picks the first item in the list
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BooK I'd say that family should be passed, and the first item in the list that match the family spec is return 22:10
and still the first is no family is given
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BooK do I make sense ? 22:10
struct addrinfo has this as its last item: struct addrinfo *ai_next; 22:12
"The items in the linked list are linked by the ai_next field."
luckily, MVM_io_resolve_host_name is not used it too many places 22:13
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BooK writing a moarvm bug report for the issue 23:18
the problem is that it requires a signature change, I think
github.com/MoarVM/MoarVM/issues/683 # I hope this makes sense 23:24
raschipi BooK: Makes sense, but can't it be solved by having a multi? If one uses the old call, and if they send the list they would ge the new one? 23:28
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BooK raschipi: in which language? nqp? 23:29
rakudo should definitely use the new call, because it's supposed to ask for a specific family 23:30
I understand changing the signature of MVM_io_resolve_host_name creates some compatibility problems, but I'm not versed enough in C or MoarVM to propose a good solution to that 23:31
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BooK design.perl6.org/S32/IO.html#IO%3A...%3A%3AINET # I see this was not the most fleshed out part of the design docs 23:37
raschipi I have to mention there's a RIGTH THING™ to do when picking an AF_INET family to communicate: happy eyebals, RFC 6555 23:41
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