»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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MadcapJake | ugexe++ # zef's new upgrade command | 01:29 | |
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sortiz | tbrowder++ # Revived perl6-examples's travis-ci build \o/ | 01:54 | |
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diakopter | psch: pong | 02:06 | |
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zacts | hi #perl6 | 02:22 | |
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sortiz | \o zacts | 02:26 | |
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zacts | :-) | 02:39 | |
I wonder if there is a lojban module for Perl6 yet? (/me searches) | |||
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dalek | Iish: ca68436 | (Salvador Ortiz)++ | lib/DBDish/Pg (3 files): Pg: Add a few connection status methods to $dbh Add pg-db, pg-user, pq-host, pq-port, pq-options methods. These methods can be used to interrogate the status of an existing database connection object. |
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grondilu | is there a way to know how much memory a given object consumes? | 05:07 | |
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masak | morning, #perl6 :) | 06:05 | |
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masak | going to teach Python 3 today. always interesting from a Perl 6 perspective ;) | 06:05 | |
& | |||
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grondilu | m: my enum <foo bar>; say foo | 06:35 | |
camelia | rakudo-moar a16f0a: OUTPUT«foo» | ||
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grondilu | m: my enum <foo bar>; my $x = foo; say class { method foo { "hi" } }.new.$x() | 06:36 | |
camelia | rakudo-moar a16f0a: OUTPUT«()» | ||
grondilu | m: my enum <foo bar>; my $x = foo; say class { method foo { "hi" } }.new."$x"() | ||
camelia | rakudo-moar a16f0a: OUTPUT«hi» | ||
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Ulti | timotimo: you asked about spreading colours to not be confusing the answer is to use HSV colour space not RGB blog.mattoates.co.uk/2012/01/genera...tinct.html | 07:30 | |
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Ulti | I have a nicer version since that post, I can probably add it to one of the colour Perl 6 modules if they dont already have something | 07:30 | |
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TEttinger | also martin.ankerl.com/2009/12/09/how-to...matically/ may be handy | 07:34 | |
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psch | .tell diakopter 'twas about dalek, but moritz++ took care off that | 07:41 | |
yoleaux | psch: I'll pass your message to diakopter. | ||
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psch | hah, i just noticed Zoffix++ "Canon in D" example for A::M::N is actually in C :P | 08:07 | |
jnthn | C makes a good foot-canon... | 08:08 | |
psch .oO( "fugue this!" ) | 08:09 | ||
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sortiz | I got another "Internal error: zeroed target thread ID in work pass", this time "frozen" by "panda install". | 08:16 | |
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RabidGravy | MARNIN! | 08:31 | |
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BooK | given github.com/rakudo/rakudo/blob/nom/...#L155-L161 if I have a subclass of Version with none of those defined, will these get called? | 08:54 | |
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RabidGravy | yes | 08:58 | |
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RabidGravy | the type constraints are essentially smart matched against the actual parameter | 09:00 | |
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brrt | .ask jnthn i'd like some new ideas where to look with the reframe-jit branch | 09:28 | |
yoleaux | brrt: I'll pass your message to jnthn. | ||
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sortiz | A simple test case for "Cannot invoke this object" error: gist.github.com/salortiz/3ca2276bd...3b3810362c | 09:42 | |
brrt | sortiz: probably not on reframe-jit? | 09:43 | |
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brrt | no, that is unlikely to be jitcompiled | 09:44 | |
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lizmat | sortiz: can you call $C2 inside the module ? | 09:45 | |
sortiz | lizmat, yes. | ||
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ufobat | zostay++ :) | 09:47 | |
sortiz | lizmat, ups, seems no. | ||
RabidGravy | sounds related to the category of "closures in pre-compiled things not working" which afflicts .wrap as well | ||
lizmat | yeah, adding "no precompilation' to the module, fixes the issue :-( | 09:50 | |
well, bypasses, I guess | |||
sortiz | lizmat, $C1 can be called, $C2 no. | 09:51 | |
lizmat | yeah, so it's not the export doing stuff | ||
it's precomp doing stuff | |||
RabidGravy | rt.perl.org/Ticket/Display.html?id=127860 and others | ||
lizmat | and it doesn't depend on order | ||
sortiz | -ll-exception results in a long diagnose... | 09:52 | |
RabidGravy | I think it boils down to "closures not surviving precomp under some circumstances" | 09:53 | |
in the wrap case it appears that the .candidates attribute winds up empty when precomped | 09:54 | ||
sortiz | RabidGravy, Yes, the interesting thing is that the 'say' method call survive, the 'say0 sub no. | ||
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jnthn | Well, method calls don't require any kind of lexical lookup to resolve, whereas the &say sub does, and only the latter would be affected by any closure serialization issues. | 09:58 | |
yoleaux | 09:28Z <brrt> jnthn: i'd like some new ideas where to look with the reframe-jit branch | ||
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brrt | oh, i'm off for lunch anyway :-) | 10:01 | |
lizmat | hmm... it also doesn't seem to catch that I changed the source file sometimes :-( | ||
jnthn | brrt: Yeah, I'm stuck in meetings for a bit at the moment | 10:02 | |
brrt: So will have to catch up on where you got to / got stuck after that :) | |||
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sortiz | Well, at least is enough golfed. | 10:09 | |
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lizmat | sortiz: did you take out the "is export" ? | 10:14 | |
did you try without "our" but with "my" | |||
sortiz | In my latest test, yes. | ||
lizmat | and only with $C2 in there ? | 10:15 | |
ok :-) | |||
RabidGravy | AAARGH TO MANY TERMINAL WINDOWS | 10:16 | |
TOO | |||
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sortiz | lizmat, My latest version is only: "BEGIN { -> { say "In closure2" } }();" :-) | 10:16 | |
lizmat | could you try with just "note" in the block ? :-) | 10:17 | |
also: without the outer curlies ? | |||
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sortiz | without the outer curlies pass: Noted | 10:20 | |
(BEGIN -> { note })(); | |||
BEGIN {-> { note }}(); # This fails | 10:21 | ||
lizmat | well, that's an interesting metric :-) | 10:24 | |
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bazzaar | \o | 10:29 | |
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bazzaar | m: token feline { <ctype=.'TOP'||'BOB'> \s+ 'CAT' } | 10:30 | |
camelia | rakudo-moar a16f0a: OUTPUT«5===SORRY!5=== Error while compiling /tmp/ruDKhrMyNLUnable to parse expression in metachar:sym<assert>; couldn't find final '>' at /tmp/ruDKhrMyNL:1------> 3token feline { <ctype=.7⏏5'TOP'||'BOB'> \s+ 'CAT' }» | ||
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jnthn | $<ctype>=[<.TOP>||<.BOB>] | 10:31 | |
Or did you want to match those as literal strings rather than subrules? | |||
$<ctype>=< TOP BOB > if literals | 10:32 | ||
(Which is short for $<ctype>=[TOP|BOB]) | |||
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bazzaar | jnthn: many thanks, have been trying for last 30mins without luck :-) | 10:33 | |
ZoffixWin | psch++ Good eye. The original actually was in D, but then I realized it was too big so I found another version :) | 10:34 | |
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ZoffixWin | m: BEGIN {-> { note }}(); | 10:35 | |
camelia | rakudo-moar a16f0a: OUTPUT«Noted» | ||
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ZoffixWin | Seems online log isn't loggin/... | 10:36 | |
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lichtkind | does anybody know how much influence tim had on Perl 5 posftix-deref design? | 10:38 | |
thanks in advance | 10:39 | ||
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ZoffixWin | .oO( who's tim :P ) |
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moritz | lichtkind: do you mean Tim Bunce? | ||
ZoffixWin | And how do you measure the amount of influence :P | ||
moritz | lichtkind: and why don't you ask in #p5p, where this would be on topic? | ||
lichtkind | moritz: no timtowdi | 10:40 | |
sure but i dont get to ask larr< in #pwel5 and besides my article is also a bit about perl 6 | |||
moritz | lichtkind: well, postfix dereference is very much timtowtdi, because prefix derefence already exists :-) | ||
ZoffixWin | I think lich is asking how much influence Larry Wall had on the design. | 10:41 | |
lichtkind | yes | ||
ZoffixWin | I don't think he's involved with P5 any more, is he? | 10:42 | |
Which is why it's probably best to ask in #p5p :P | |||
lichtkind | as far as i know he at lesat ok's such decision so ther eis still some influence | ||
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llfourn | does anyone know what the purpose of empty '{}' in the Perl6::Grammar is? | 10:43 | |
like | {} <.panic: "Bogus statement"> | |||
moritz | llfourn: to terminate LTM | ||
lizmat | lichtkind: I don't think TimToady's opinion was asked about postfix deref syntax | ||
llfourn | moritz: thanks! | ||
lichtkind | lizmat thank you | ||
psch | llfourn: {} serves as a sequence point, which prevents backtracking over itself | 10:44 | |
moritz | psch: {} does not prevent backtracking, I think | ||
jnthn | You can backtrack over a {} | 10:45 | |
psch | ...did that change? o.O | ||
moritz | no | ||
jnthn | Though of course only if you're in a backtracking context. | ||
psch | oh, then i completely misremembered or misunderstood it | ||
it does terminate LTM, though, doesn't it? | 10:46 | ||
jnthn | As moritz said, it makes anything after it invisible to LTM. | ||
moritz | and much of the Perl 6 grammar is made of token {}s, which don't backtrack | ||
psch | ohh, i didn't even see moritz++ reply | ||
psch goes back to grmbling at MIDI :S | |||
llfourn | so why would you want to terminate LTM before a panic? # still understanding regex concepts | 10:47 | |
I assume so the panic doesn't too eagerly happen | |||
moritz | right | 10:48 | |
llfourn | there could be a zero width match elsewhere that could avoid... thanks I get it now | ||
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dalek | ecs: e094a61 | RabidGravy++ | S22-package-format.pod: Bring META format closer to reality * resource has been implemented differently * version literals should omit "v" * use proper JSON bool |
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brrt | jnthn: np, eventually we'll get to the bottom of it :-) | 11:06 | |
it seems to only happen in perl6 code, though | |||
which is why i was thinking about the extops, but that doesn't seem to be it | 11:07 | ||
RabidGravy | right, where was I? | 11:09 | |
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moritz | ask your GPS? :-) | 11:10 | |
sortiz | Talking about S22, is a ':ver<x.y.z>' part allowed in 'provides'? | 11:13 | |
As panda/zef can uses 'provides' to resolve install requests, I hope so. | 11:19 | ||
_nadim | morning all | 11:22 | |
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_nadim | jnthn: did you have a look at my patch or shall I create another module? | 11:22 | |
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moritz | PSA: Richard Hainsworth built finanalyst.github.io/ModuleCitation/ which tracks "citation" (reverse dependency) index of Perl 6 modules over time | 11:24 | |
jnthn | _nadim: Didn't have time to fully look over it. I'm think I'm good with some aspects of it, sad to lose the tree though. | 11:25 | |
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jnthn | _nadim: So if you feel strongly on that aspect you'll probably need to create your own :) | 11:26 | |
_nadim | jnthn: I can make that optional when one uses the module. | ||
jnthn | People generally seem to like G::T so I'm not inclined to overly change its output. | ||
Yeah, that's another option. | 11:27 | ||
_nadim | I also though about some stats about which part of the grammar fires the most. that could be a little hint for optimization. | ||
brrt | what is G::T? | 11:28 | |
moritz | Grammar::Tracer or so? | ||
_nadim | Grammar::Tracer | 11:29 | |
jnthn | _nadim: I think there's a Grammar::Profiler | ||
_nadim | jnthn: they may like it because they haen't seen anything else ;) | ||
I'll check that | |||
there is indeed github.com/perlpilot/Grammar-Profiler-Simple | 11:30 | ||
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bazzaar | .oO is learning to construct grammars and 'stress testing' Grammar::Debugger :-) | 11:36 | |
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ufobat | ZoffixWin, have you noticed github.com/ufobat/Bailador/blob/ma...ticFile.pm ? it might be similar to one of your modules you have recently developed | 11:52 | |
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moritz | finanalyst.github.io/ModuleCitation/ it seems that JSON::Fast is eating JSON::Tiny's lunch :-) | 12:04 | |
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RabidGravy | the fact that I switched JSON::Marshal (which is depended on indirectly by about seven modules) to JSON::Fast probably had some of that :) | 12:07 | |
moritz | ah, cool | ||
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pmurias | is examples/rubyish meant to grow into a full ruby implementation? | 12:13 | |
ahh, it seems it was just unbitrotted | 12:14 | ||
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ZoffixW | ufobat, I saw it, but I found no documentation at all. Nor was it `used` anywhere else in Bailador. What is the similarity that you mention? | 12:17 | |
ufobat | i just think it serves the same purpose | 12:18 | |
i updated the documentation yesterday | |||
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ZoffixW | ufobat, yeah, it's pretty much the same. The only differences I see is mine takes no configuration and will return a 404 if the file is not there. | 12:22 | |
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ufobat | mine is not supposed to return a 404 because of my ideas for "nested routes" handling :-) | 12:23 | |
ZoffixW | It kinda bugs me that Bailador sometimes uses kebob-case and sometimes the underscore_case... sessions-config/content_type, cookie-expiration/add_route | 12:24 | |
ufobat, I didn't even know you could return a False until just now :) And I wrote ::Static while drinking at the bar :P | |||
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RabidGravy | I hate flappy tests | 12:24 | |
ZoffixW | ufobat, all this tells me is I need to actually sit down and read all the docs :) | 12:25 | |
ufobat | ZoffixW, yeah! i was quite unhappy that i didnt write documentation nor a good test for it.. i started to write a "playground web app" to get a feeling whats missing in bailador.. | ||
to be honest i am just greedy for getting feedback :p | 12:26 | ||
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ZoffixW | ufobat, my biggest "concern" is concurrency. I've seen someone comment on PSGI module that, say, when you .slurp a file it's all blocking. | 12:27 | |
ufobat | yeah | ||
absolutly | |||
i am not sure, but i think first the webservers have a different understanding of the p6w / p6sgi draft | 12:28 | ||
and 2nd the content can be a supply | |||
jnthn | If you're using IO::Socket::Async and tap that, the incoming requests are automatically processed across multiple threads anyway. | ||
ufobat | so in fact the staticfile should return a supply | 12:29 | |
RabidGravy | well could | ||
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ufobat | i shouldn't ever say should again, i know | 12:30 | |
but isn't it better if the staticfile thingy would return a supply instead of the Blob? | 12:31 | ||
RabidGravy | If there isn't a module that does async file I/O to a supply, I'd make that separately first | ||
it may have a separate utility | 12:32 | ||
ufobat | i dont know, i was just thinking about the psgi spec so far. i dont know whats easy or available so far :-( | ||
llfourn | I think the idea of p6 IO is that you don't have to worry about blocking/non-blocking in situations like this? | ||
(as long as the requests are being handled Async) | 12:33 | ||
ZoffixW | Well, I now mentioned Bailador::Route::StaticFile in Bailador::Plugin::Static. My only reservation against deleting it entirely is that I feel I shouldn't need to configure anything for my app to serve static files. It should come by default (with, say, using `public` dir to look for static files at, if all the routes fail). An app that doesn't use any static files ever is a rare beast. | ||
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ZoffixW & # work | 12:33 | ||
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RabidGravy | I keep thinking it's Sunday | 12:34 | |
[Coke] | sadly, nope | ||
ufobat | llfourn, i think the idea is that you webapp is slurping the file, responding to the http server, and while asyncronously reading the file the server could respond to the client | 12:35 | |
lizmat | if it is a static file, why slurp the file in userland at all? | ||
ufobat | if you "slurp" the file first, then keep the promise and then the server responds it is not as good as it could be | ||
lizmat | isn't there a way to directly pipe a file to a handle ? | 12:36 | |
ufobat | first you need to check if you use any kind of encoding.. URL encoding or form multipart thingy i think | ||
timotimo | there is in posix, yeah | ||
llfourn | ufobat: I don't think it matters. Unless you are trying to say that you want to return chunks of the file to client. When .slurp is called the whole webserver is not blocking. | ||
timotimo | i forgot what it's called, though | 12:37 | |
RabidGravy | sendfile isn't it? | ||
timotimo | could be | 12:38 | |
_nadim | Yo, anyone here that would like to share a bigger place in cluj for YAPC? | ||
timotimo | yeah, it is | ||
ufobat | github.com/zostay/P6SGI fyi | ||
RabidGravy | the Supply thing in the p6sgi response is more useful for streaming type thingies where you need to send the start of the response to the client and then carry on sending an unknown amount of data | 12:40 | |
pmurias | _nadim: you mean share a room? | 12:41 | |
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_nadim | a room or rather an appartment | 12:41 | |
DrForr | Oh, where are you staying? | ||
_nadim | I'm good for a room if we are not many | ||
I aven't decided anything, there are appartments on rbnb, 3 rooms, and smaller ones too | 12:42 | ||
ufobat | a real world example is maybe when you compute something that takes its time and you'd like to transmit what you've done so far | ||
? | |||
RabidGravy | well a real, real world example is audio streaming where the output doesn't end until the client disconnects, but you need a response for the client to know what it is going to get | 12:44 | |
ufobat | yes! | ||
RabidGravy | the only reason I implemented the streamthing server from scratch was that there is no way to do the reverse in any of the current implementations | 12:46 | |
_nadim | DrForr: here's an example www.airbnb.com/rooms/12693204?chec...s=N5l-eWp7 | ||
RabidGravy | i.e. a connected client will keep sending data for ever but needs a response up front to know that it was accepted | ||
brrt | when exactly is YAPC in Cluj? | 12:48 | |
_nadim | 24-26 August. I plan to come the day before and leave the day after | 12:49 | |
brrt | hmm, hope i'll be able to come this year | 12:50 | |
although i've already missed GPW and NLPW, which were closer by | |||
DrForr | That's probably just a mile or so from my place. | 12:51 | |
brrt | DrForr: what is your place | ||
DrForr | Uh, my apartment? :) | 12:52 | |
brrt | fair enough | 12:53 | |
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jnthn | var InvalidVersion = props => | 12:56 | |
<Alert bsStyle="danger" className="padded-from-header-footer"> | |||
<strong>Sorry!</strong> This tutorial format version, {props.version}, is not supported. | |||
<strong>Supported version: </strong>{supportedVersion} | |||
argh! | |||
sorry | |||
RabidGravy | actually it just occurred to me that the "source client" connection for a streaming server could do what Websocket::PSGI does and respond but continue reading from the socket | ||
brrt | :-) | ||
do we have a pg client actually? | 12:57 | ||
RabidGravy | the DBIish pg thing works fine | 12:58 | |
brrt | alpine perl workshop has switched datespace with YAPC this year | ||
pg <3 | |||
well, postgresql, anyway | |||
pmurias needs to come up with a name for his rakudo.js YAPC::EU talk | 13:03 | ||
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jnthn | "Anything that can be compiled to JavaScript will be compiled to JavaScript, Perl 6 edition" :P | 13:05 | |
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tadzik | _nadim: (yapc) sounds good :) | 13:13 | |
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RabidGravy | tadzik, just invited you to the perl6-noise-gang "organisation" | 13:18 | |
tadzik | yay! | 13:19 | |
RabidGravy | anyone else? | ||
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RabidGravy | ugh | 13:27 | |
everything has suddenly become really really slow | 13:28 | ||
tadzik | yes, I will get to finishing and publishing my music sheet editor:) | ||
RabidGravy | do it! | 13:29 | |
tadzik++ | |||
tadzik | I guess I could also port my midi-to-musicsheets thing to perl 6 | ||
it may turn out to be a bit computationally heavy | 13:30 | ||
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[Coke] | (sixfix) ... that escalated quickly. | 13:43 | |
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tadzik | ...sixfix? :) | 13:51 | |
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RabidGravy | google says it's some kind of diet/life style fad, I guess that's not what we're taling about here ;-) | 14:01 | |
mspo | sounds like a mailing list | 14:02 | |
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MadcapJake | sixfix.nigelhamilton.com | 14:26 | |
RabidGravy | ah yes | 14:29 | |
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brrt | slow day today | 14:57 | |
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RabidGravy | what's the canonical form of an IRC URI? | 15:13 | |
is it something like irc://server/channel ? | |||
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mspo | www.w3.org/Addressing/draft-mirash...irc-01.txt | 15:15 | |
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teatime | How does :sym<X> work on regexes... 1) can X be multiple characters, 2) does <sym> have to appear in the regex, 3) can the regex be more than just <sym> | 15:21 | |
4) can you arbitrarily-parameterize regexes, and/or are there any other :sym<>-like things | |||
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RabidGravy | mspo, so yes | 15:22 | |
:) | |||
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psch | m: grammar G { proto token foo {*}; token foo:sym<bar> { <?> } }; G.parse("anything", :rule<foo>) | 15:24 | |
camelia | ( no output ) | ||
perlpilot | teatime: yes, no, yes, yes-ish :) | ||
psch | i think 4 is yes/no..? | 15:25 | |
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psch | as in, any regexen can take an abritrary amount of parameters, but i at least don't know of anything else but :sym<> that works that way | 15:26 | |
perlpilot | depends on exactly what is meant by ":sym<> like things" | ||
psch | i read it as "adverbs to the declaratee" | 15:27 | |
perlpilot | but, "no" to that one is a very good approximation anyway. | ||
teatime | I think I read earlier that the 'regex foo { }' syntax cannot take a parameter list, or did I not? | ||
jnthn | It can take a paraemter list too | ||
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jnthn | The :sym<foo> thing isn't about parameters though | 15:28 | |
It's about collecting candidates of a protoregex together | 15:29 | ||
The choice of foo doesn't matter, unless you use <sym> in which case that is replaced with $<sym>=[foo] by the compiler | |||
mspo | RabidGravy: yes I think so too | 15:30 | |
RabidGravy: but you can also use ,options it seems | |||
teatime | is it really [foo] and not ['foo'] ? | ||
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teatime | nm, I don't actually care about that | 15:30 | |
RabidGravy | it's close enough for jazz and I'm not sure any actual browsers support it without a plugin anyway | 15:31 | |
masak | m: for ^Inf { .say if ($_ eq .flip given .base(2)) } # binary palindromes | ||
m: for ^Inf { .say if $_ eq .flip given .base(2) } # binary palindromes, in binary | |||
camelia: sorry about the Inf :/ | |||
camelia | rakudo-moar a16f0a: OUTPUT«(timeout)0135791517212731334551636573859399107119127129153165189195219231255257273297313325341365381387403427443455471495…» | ||
rakudo-moar a16f0a: OUTPUT«(timeout)0111101111100111111000110101110111111110000110110111001111111110000011001001101010110111011100011110101111101111111111100000011001100110100101101111011100001111011…» | |||
masak | those parens come out really nice. I hadn't really realized that you could do that, but I tried it, and it worked! \o/ | 15:32 | |
psch | m: for ^0b111111 { .say if .&[eq] .flip given .base(2) } # away with explicit topics! | 15:33 | |
camelia | rakudo-moar a16f0a: OUTPUT«0110111001011101111000100110101011110011011110111110000100011001010011101001010110110101111100011001110101101111100111011111011111100000100001100010100…» | ||
psch | and minus the one extra space it's the same length too | 15:34 | |
oh, but it doesn't work... :/ | |||
masak | :P | ||
m: for ^0b111111 { .say if .&[eq]: .flip given .base(2) } | 15:35 | ||
camelia | rakudo-moar a16f0a: OUTPUT«01111011111001111110001101011101111111100001101101110011» | ||
masak | missing colon | ||
psch | yeah, i didn't really parse this right i guess :) | ||
perlpilot | nice. | ||
masak | very Perlonic :) | ||
perlpilot | too bad you can't use "with" instead of "given" ;) | 15:36 | |
masak | m: (.say if .&[eq]: .flip given .base(2)) for ^0b111111 | 15:38 | |
camelia | rakudo-moar a16f0a: OUTPUT«01111011111001111110001101011101111111100001101101110011» | ||
jnthn | teatime: $<sym>='foo' would be another way :) | 15:40 | |
Those forms all compile into the same thing anyway :) | |||
psch | m: grammar G { proto token foo {*}; token foo:sym<$x> { <sym> } }; say G.parse('$x', :rule<foo>) | 15:41 | |
camelia | rakudo-moar a16f0a: OUTPUT«「$x」 sym => 「$x」» | ||
psch | m: say '$x' ~~ / [$x] / | ||
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camelia | rakudo-moar a16f0a: OUTPUT«5===SORRY!5=== Error while compiling /tmp/8J16GL07DJVariable '$x' is not declaredat /tmp/8J16GL07DJ:1------> 3say '$x' ~~ / [7⏏5$x] /» | 15:41 | |
jnthn | Well, of course you need quotes if the thing contains non-alphanumerics | 15:43 | |
teatime | jnthn: $<sym>='foo' != $<sym>=[foo] if instead of foo you have something like + | ||
masak | m: enum Player (Player1 => +1, Player2 => -1); sub opponent(Player $p --> Player) { Player(-$p) }; say opponent(Player1); say opponent(Player2) | 15:44 | |
camelia | rakudo-moar a16f0a: OUTPUT«Player2Player1» | ||
teatime | so would you do it as regex foo:sym<'@non-alpha stuff'> ? | ||
jnthn | Well yeah, but this is all rather silly given the compiler transforms things using ASTs | ||
Not text. | |||
masak | m: enum Player (Player1 => +1, Player2 => -1); sub opponent(Player $p --> Player()) { -$p }; say opponent(Player1); say opponent(Player2) | ||
camelia | rakudo-moar a16f0a: OUTPUT«Type check failed for return value; expected Player(Any) but got Int (-1) in sub opponent at /tmp/DznC9f91X6 line 1 in block <unit> at /tmp/DznC9f91X6 line 1» | ||
masak | aww :) | ||
teatime | jnthn: I'm just trying to figure out how it works and/or what language feature it is an instance of. | ||
nine_ | jnthn: do we have atomic file rename support for Windows? | ||
jnthn | So it's a non-issue :) It just produces an AST node that literally matches whatever's in the :sym<...> :) | ||
masak wonders if implementing coercing return types would be within his ken | |||
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teatime | is the < > here the quote-words operator? | 15:45 | |
jnthn | :sym<foo> is an adverb | ||
The compiler recognizes it and treats it specially on token/rule/regex | |||
nine_: "It's complicated"... stackoverflow.com/questions/167414/...on-windows has some info | 15:47 | ||
teatime | ok, it is quote words.. does that mean maybe you can do :sym「\」 ? | 15:48 | |
jnthn | Think that'd work out OK | ||
nine_ | jnthn: ack turns up 0 results for ReplaceFile in our code base, so I guess the answer is very close to "no" | 15:49 | |
jnthn | nine_: Oh, I interpreted the question more as "is it even possible on Windows" ;) | 15:50 | |
nine_: We use libuv, and *it* may end up calling ReplaceFile | |||
nine_ | Somehow search results for "flock() performance" are much more sheepish than I had anticipated... | ||
jnthn: don't we bundle libuv? | |||
teatime | heh, :sym("\\") works but :sym「\」 and :sym(「\」) say malformed regex *shrug* | 15:51 | |
jnthn | nine_: But I'm reading the MSDN docs on ReplaceFile and...it doesn't say anything about atomicity :/ | 15:52 | |
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jnthn | nine_: Yes, MoarVM staticly links in libuv and implements most of its IO using it | 15:53 | |
teatime | er, nm, :sym(「\」) works.. so that's not *as* weird | ||
jnthn | nine_: Reading around a bit, I see various indications that ReplaceFire is indeed not atomic. | 15:54 | |
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nine_ | jnthn: ok, thanks! I guess I should first sit down and think through how much consistency I'm actually gonna need anyway. | 15:57 | |
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perlpilot | teatime: I wonder why there isn't a postfix 「」 like there is for <> | 15:58 | |
masak | I thought 「」 was more like '' than like <> | 15:59 | |
teatime | heh, I thought '' and <> were more alike than different :) | 16:00 | |
jnthn | Hm...I guess the colonpair parsing is a little less liberal than I remembered :) | ||
(As in, it's not "any opener/close will do" | |||
) | |||
perlpilot | masak: see? even jnthn expected it to work :) | ||
masak | heh :) | 16:01 | |
jnthn | heh | ||
I'm frazzled from having to attend a couple of meetings today, though, so I'd not read too much into that :P | |||
Xliff | `<grondilu> is there a way to know how much memory a given object consumes? | 16:02 | |
MadcapJake | <> is quoteword [post]circumfix and 「」 is raw quote construct (no escaping anything) | ||
Xliff | ^^ I would like to know this too. | ||
(Afternoon #perl6) | 16:03 | ||
perlpilot | Xliff: Devel::SizeMe (as soon as someone writes something like that for Rakudo ;) | ||
Xliff | LOL! | 16:04 | |
Will that work with Inline::Perl5? | |||
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perlpilot | try it! That could be interesting | 16:04 | |
likely though, you'll get the size of the wrong things | 16:05 | ||
or not enough of the right things | |||
Xliff | I will! Can I dump any SEGVs in your inbox? | ||
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jnthn | There's a heap profiler | 16:05 | |
That you can use to understand memory use | |||
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jnthn | Fairly early, but already been good enough for me to hunt/fix leaks :) | 16:06 | |
Xliff | jnthn, you mean "perl6 --profile" ? | ||
I have used it. And it is nifty. | 16:07 | ||
jnthn | Xliff: That's the instrumenting profiler, which is good for working out what allocates memory etc. | ||
Xliff | Oh. My bad. | ||
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perlpilot | jnthn: you can't run the heap profiler from within a running program, can you? | 16:07 | |
jnthn | Xliff: But less good at telling you actual sizes, and how memory is being retained |