»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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cowens Is Uni intentionally a read-only type? 00:16
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timotimo yes 00:33
cowens So, any Uni method should return a new Uni? 00:38
Which means methods like .chop are right out?
or at least can’t work like their Str counterparts 00:39
MasterDuke .chop is non-mutating now 00:41
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MasterDuke m: my $a = "ab"; $a.chop; say $a 00:41
camelia rakudo-moar 13f479: OUTPUT«ab␤»
MasterDuke m: my $a = "ab"; my $b = $a.chop; say $b
camelia rakudo-moar 13f479: OUTPUT«a␤»
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cowens Ah, I missed that. Must read more closely . 00:43
MasterDuke SourceBaby: help
SourceBaby MasterDuke, Use s: trigger with args to give to sourcery sub. e.g. s: Int, 'base'. See modules.perl6.org/dist/CoreHackers::Sourcery
MasterDuke s: Str, 'chop'
SourceBaby MasterDuke, Sauce is at github.com/rakudo/rakudo/blob/13f4...ol.pm#L111
MasterDuke s: "ab", 'chop' 00:44
SourceBaby MasterDuke, Sauce is at github.com/rakudo/rakudo/blob/13f4...ol.pm#L111
p3rln00b s: "ab", "chop", \() 00:45
SourceBaby p3rln00b, Sauce is at github.com/rakudo/rakudo/blob/13f4...Str.pm#L78
MasterDuke p3rln00b++
cowens: ^^^ 00:46
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cowens nqp::isgt_i is > for integers? 00:47
p3rln00b Yes
cowens and nqp::sub_i is []?
p3rln00b cowens: subtraction of ints. See github.com/perl6/nqp/blob/master/d...s.markdown 00:48
cowens ah
I was thinking subscript
MasterDuke nqp::atpos i beliebe 00:50
*believe
cowens makes sense
timotimo cowens: the nqp::blah stuff maps mostly 1:1 to stuff in MoarVM's src/core/interp.c (how exactly they map can be found in nqp's src/vm/moar/QAST/QASTOperationsMAST.nqp) 00:54
but i'm quite late for bed right now, so i can't help further than that :( 00:55
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dalek c: a174105 | coke++ | doc/Language/ (2 files):
e.g., not eg
 01:33
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dalek c/spellcheck: 15346a5 | coke++ | doc/ (11 files):
use full word.
 01:34
c/spellcheck: c83fe47 | coke++ | doc/Language/ (2 files):
standardize on regexes
c/spellcheck: 1429a85 | coke++ | xt/.aspell.pws:
moar words
c/spellcheck: a174105 | coke++ | doc/Language/ (2 files):
e.g., not eg
c/spellcheck: f80414d | coke++ | doc/Language/ (2 files):
Merge branch 'master' into spellcheck
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dalek c/spellcheck: a279942 | coke++ | xt/.aspell.pws:
moar words
 01:47
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bioduds hi guys, sorry to disturb, what is this error telling me? Asked to remove 2 spaces, but the shortest indent is 0 spaces in any descend at gen/moar/m-Perl6-Actions.nqp line 473 01:58
I didn't understand
geekosaur usually means you have an indented here document, but one line in it isn't indented enough 02:01
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bioduds yes, thanks 02:06
geekosaur : tx
p3rln00b bioduds: got code that produced that? It's LTA the error is referencing guts 02:08
bioduds p3rln00b : tx, solved with geekosaur hint :) 02:09
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geekosaur yes, but p3rln00b is right, the error and the code that produced the error should probably be filed as an LTA ticket 02:09
p3rln00b m: q:to/x/;␤y␤ x
camelia rakudo-moar 13f479: OUTPUT«Asked to remove 2 spaces, but the shortest indent is 0 spaces␤ in any trim_heredoc at gen/moar/m-Perl6-Actions.nqp line 499␤»
geekosaur because that's a lousy error message 02:10
bioduds oh, so sorry, what should I do?
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p3rln00b bioduds: submit a bug report, with the code that produce your error 02:12
bioduds yes, where, please? 02:13
p3rln00b bioduds: send an email to [email@hidden.address]
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bioduds ok, sent! :) 02:14
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p3rln00b bioduds++ thanks 02:14
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bioduds p3rln00b : much obliged :) 02:21
seatek gosh, i don't know what to think about class names and method names with dashes. but i love them. and don't like them too. 02:30
p3rln00b
.oO( once you go kebab, you never go back )
 02:34
seatek i'm so confused 02:39
p3rln00b the names with dashes is called "kebab case" 02:40
(or "kebob case") 02:41
seatek that's not what confused me. it's the fact that i'm liking them. 02:43
AlexDaniel I don't know what's so special about kebab case, but indeed, you never go back 02:44
p3rln00b The special is that you don't have to jam SHIFT a billion times a day while coding.
AlexDaniel nah, that's not it 02:45
in fact, on my layout - is harder to press than _
seatek it's that it's so wrong. and so right.
p3rln00b And normal-looking words use hyphens and not underscores.
AlexDaniel yeah, that. It just looks so much better 02:46
geekosaur to me it reads more naturally (because ^) and easily (because thisIsHardToRead)
seatek yeah and underscores are awkward too
AlexDaniel geekosaur: yeah, but this_is_not_so_hard_to_read ?
this-is-not-so-hard-to-read 02:47
seatek it's so good
AlexDaniel mhmmmm… kebab just looks significantly better
I still find it weird that just moving the line a few pixels higher makes such a big difference 02:48
geekosaur the dashes one at least is something I will often encounter in normal reading
seatek it's like the continuity of the line, rather than being broken up into individual words
geekosaur neither is great, but there is no "great" solution really (there's also the SQL one, where you can put spaces in a symbol name if you double quote it) 02:49
AlexDaniel what about this'is'not'so'hard'to'read ?
seatek it's abrasive, like a cheese grater
BenGoldberg It's perl4! 02:50
geekosaur also especially bad here because I use a proportional font for IRC, so now it's squished
or Ada
AlexDaniel seatek: not sure if you are aware:
seatek is that really perl4? i don't remembe rthat
AlexDaniel m: my $foo'bar'baz = 42; say $foo'bar'baz
camelia rakudo-moar c57a26: OUTPUT«42␤»
geekosaur perl 4 and earlier used ' as the namespace token (like :: in perl5)
BenGoldberg Before perl used :: to separate namespaces, it used '
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seatek ahhh ok :) 02:51
vague vague recollection there
AlexDaniel can you use ' today?
BenGoldberg It's actually still valid (in perl5), but only used for silly stuff, like making a sub named isn't
geekosaur but prints back out in error /warning messages with the :: 02:52
pyanfar Z$ perl -e "use warnings; \$x'y = 1"
Name "x::y" used only once: possible typo at -e line 1.
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AlexDaniel m: my $thisˉisˉnotˉsoˉhardˉtoˉread = 42; say $thisˉisˉnotˉsoˉhardˉtoˉread # well, let's move it even higher? 02:57
camelia rakudo-moar 565b52: OUTPUT«42␤»
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seatek i kinda like that one 02:58
AlexDaniel
.oO( “upperscore case”? “overscore case” ?)
 03:01
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geekosaur I find that if I'm looking up, I'm expecting magic. this may be because Haskell (where ' in a non-Char context often indicates TH or type level shenanigans) 03:02
p3rln00b .tell El_Che JSON handler now fixed: rt.perl.org/Ticket/Display.html?id=129810 03:04
yoleaux p3rln00b: I'll pass your message to El_Che.
AlexDaniel m: my $f̅o̅o̅ˉ̅b̅a̅r̅ = 42; say $f̅o̅o̅ˉ̅b̅a̅r̅ # overline case? :o
camelia rakudo-moar 565b52: OUTPUT«42␤»
p3rln00b AlexDaniel: nope: i.imgur.com/0CjflhX.png 03:05
hah
Now every line in chat is showing "rline case? :o" at the end ~_~ 03:06
:)
AlexDaniel p3rln00b: actually, this looks almost right
p3rln00b: compare it with this: files.progarm.org/2016-10-10-06065..._scrot.png 03:07
this is completely wrong…
seatek that second is what i got
p3rln00b Terminal: i.imgur.com/5Gw1VR8.png 03:08
AlexDaniel seatek: why does it decide to put it on the character to the right? 03:09
what is this? Why? Is there a bug report for that?
This bug is there for more than 5 years I think
seatek AlexDaniel, you got me
ugh. databases always make me do things i don't want to do. 03:10
AlexDaniel seatek: like? 03:12
seatek AlexDaniel, well, right now i have some nice discreet files doing tests on individual tables, but now with the logic of relations, it's easiest to combine those nice neat test files all together into one big giant thing 03:14
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p3rln00b bioduds: in the future, it would be helpful if bug reports contained code that reproduces the issue, along with the version of information of Perl you're running 03:21
m: q:to/x/;␤y␤ x
camelia rakudo-moar 3b5ef0: OUTPUT«Asked to remove 2 spaces, but the shortest indent is 0 spaces␤ in any trim_heredoc at gen/moar/m-Perl6-Actions.nqp line 499␤»
p3rln00b bioduds: e.g. ^ that's a similar error, but it doesn't reference "descend" your error does. So I've no idea now how to produce *your* error. 03:22
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p3rln00b bioduds: 'cause this is how it shows up on our end: rt.perl.org/Ticket/Display.html?id...et-history 03:23
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geekosaur I think it might? there's a text/plain inclusion before the message which may have gotten the source? 03:26
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geekosaur oh, no, same thing :/ 03:26
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geekosaur so yes, the source that triggered it and the perl6 --version output 03:27
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moritz enjoyed www.promptworks.com/blog/public-keys-in-perl-6 09:21
m: say :100(1, 2, 3) 09:22
camelia rakudo-moar d03459: OUTPUT«This call only converts base-100 strings to numbers; value $(1, 2, 3) is of type List, so cannot be converted!␤(If you really wanted to convert $(1, 2, 3) to a base-100 string, use $(1, 2, 3).base(100) instead.)␤ in block <unit> at <tmp> line 1␤␤»
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moritz m: say (1, 2, 3).base(100) 09:22
camelia rakudo-moar d03459: OUTPUT«No such method 'base' for invocant of type 'List'␤ in block <unit> at <tmp> line 1␤␤»
moritz m: say $(1, 2, 3).base(100)
camelia rakudo-moar d03459: OUTPUT«No such method 'base' for invocant of type 'List'␤ in block <unit> at <tmp> line 1␤␤»
moritz this seems LTA :/
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moritz m: say <1 2 3>.reduce: { $^a + 100 * $^b} 09:41
camelia rakudo-moar d03459: OUTPUT«501␤»
moritz m: say <1 2 3>.reduce: { 100 * $^a + $^b}
camelia rakudo-moar d03459: OUTPUT«10203␤»
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gfldex m: say (1, 2, 3)».base(100) 10:18
camelia rakudo-moar d03459: OUTPUT«base argument to base out of range. Is: 100, should be in 2..36␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in block <unit> at <tmp> line 1␤␤»
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RabidGravy boom! 10:25
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RabidGravy rebuilding rakudo on the faster of Raspberry Pi to test the RT #127194 10:30
synopsebot6 Link: rt.perl.org/rt3//Public/Bug/Displa...?id=127194
RabidGravy it does appear that it has improved without the suggested fix though
yay, all good with FFI :) 10:44
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RabidGravy right, now re-building for a third time 11:03
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RabidGravy Hopefully it will fix the infelicity in the github.com/jonathanstowe/RPi-Device-PiGlow whereby it doesn't light up all the LEDs 11:06
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dalek c: d714636 | (Tom Browder)++ | doc/Language/exceptions.pod6:
better grammar
 12:40
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[Coke] bduggan++ 12:46
cowens p6: 1[1];
camelia rakudo-moar d03459: OUTPUT«Index out of range. Is: 1, should be in 0..0␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in block <unit> at <tmp> line 1␤␤»
cowens p6: (1)[1];
camelia rakudo-moar d03459: OUTPUT«Index out of range. Is: 1, should be in 0..0␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in block <unit> at <tmp> line 1␤␤»
cowens p6: (1,)[1]; 12:47
camelia ( no output )
cowens A better error message is probably needed in the first two cases.
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jnthn What would you like it to say? 12:49
m: say 1[0]
camelia rakudo-moar d03459: OUTPUT«1␤»
jnthn m: say (1)[0]
camelia rakudo-moar d03459: OUTPUT«1␤»
jnthn The range it suggests is correct
cowens But it is likely an accident. 12:50
Lots of the other error messages have suggestions like: perhaps you meant (1,)[1] or 1 is not a list
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lizmat cowens: a scalar is like a shaped 1 element array 12:51
m: my @a[1]; say @a[1]
camelia rakudo-moar d03459: OUTPUT«Index 1 for dimension 1 out of range (must be 0..0)␤ in block <unit> at <tmp> line 1␤␤»
cowens Is there a valid use for that feature?
arnsholt m: say (1,)[1] # What does that return, though?
camelia rakudo-moar d03459: OUTPUT«Nil␤»
psch m: List.new[0].say
camelia rakudo-moar d03459: OUTPUT«Nil␤»
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lizmat cowens: so you don't have to worry if something returns a scalar and you want to treat it as a list 12:52
m: say 42.elems
camelia rakudo-moar d03459: OUTPUT«1␤»
cowens hmm
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AlexDaniel m: say +[42] # ;) 12:52
camelia rakudo-moar d03459: OUTPUT«1␤»
jnthn We do, I believe, have enough context at runtime to point out that the out-of-bounds happened on an item that was then treated as a 1-item list for the sake of the indexing operation 12:53
And it may well be helpful 12:54
cowens I stumbled into this when checking to see if strings had [] implemented
AlexDaniel ooh
jnthn No, a string is an item
cowens the error messages was . . . a bit confusing to say the least
jnthn So will be treated as a 1-item list
AlexDaniel sure, but I see why someody would try that
cowens Yeah, I figured that out 12:55
perlpilot jnthn: I think it would. Especially in the case of my $a = 42; $a[1];
AlexDaniel m: say "hello"[3]
camelia rakudo-moar d03459: OUTPUT«Index out of range. Is: 3, should be in 0..0␤ in block <unit> at <tmp> line 1␤␤Actually thrown at:␤ in block <unit> at <tmp> line 1␤␤»
lizmat perhaps we should implement a Str.AT-POS that dies with a more appropriate error message ? 12:56
cowens I did immediately try “foo”[0] and got back “foo”, so the error message worked, but only because I was in the REPL playing
jnthn lizmat: No
lizmat: But I'd be +1 to a patch to the AT-POS that does the item => 1-item list promotion giving a better error on out-of-range
cowens If that had been in a program, I would have spent a long time trying to figure out what went wrong with my string
lizmat jnthn: on it 12:57
jnthn Not quite sure how to word it.
AlexDaniel cowens: yeah, it is LTA
MasterDuke i think i recently had some discussion with TimToady about that error message
AlexDaniel generally, any complaint or even just misunderstanding can be turned into a LTA ticket :) 12:58
jnthn Maybe "Index out of range in Str treated as 1-item list." or so
cowens That sounds more reasonable
AlexDaniel “Did you mean .substr?”
cowens It gets the user thinking in the right direction 12:59
perlpilot AlexDaniel: and no extra hint for non-Str?
jnthn Hm, not so sure about special-casing the error when it's Str, but I guess we could
lizmat ok, leaving LHF for someone else
AlexDaniel sounds like something MasterDuke would do ;) 13:00
lizmat yeah... so looking forward to a PR or commit :-)
Unavowed m: say @(Set.new: 1, 2, 3) 13:03
camelia rakudo-moar d03459: OUTPUT«(3 => True 1 => True 2 => True)␤»
lizmat Unavowed: yes, a set is a conceptually a List of True 13:04
jnthn uh
A hash whose keys are True, surely? :)
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jnthn *values 13:04
gah :)
m: say keys Set.new: 1,2,3 13:05
camelia rakudo-moar d03459: OUTPUT«(3 1 2)␤»
AlexDaniel RT #129843
synopsebot6 Link: rt.perl.org/rt3//Public/Bug/Displa...?id=129843
lizmat ok, a Hash of True, which listifies as a list with Pairs of True values
jnthn Right
Which is to be consistent with things that do Associative 13:06
MasterDuke ahh, wasn't exactly the same situation, but a similar error irclog.perlgeek.de/perl6/2016-09-26#i_13285180
jnthn So if you refactor from my %h to my %h is Set or my %h is Bag then you won't get surprises.
Or even more importantly, if you write sub foo(%h) { for %h -> $pair { ... } } and somebody passes you a Set/Bag/Mix 13:07
MasterDuke jnthn: btw, i left you a question in #perl6-dev if you've got a minute 13:08
AlexDaniel MasterDuke: what does this leading : mean in tokens? :O 13:09
MasterDuke no real idea, but it seems to let you run code, so i take advantage of it 13:11
psch m: grammar G { token TOP { :my $x = "foo"; <{ $x }> } }; G.parse("foo").say
camelia rakudo-moar d03459: OUTPUT«｢foo｣␤»
MasterDuke i was just flailing wildly at the keyboard and it worked out
AlexDaniel damn I wonder how I've never noticed 13:12
psch it's just a "this is a %*LANG<MAIN> statement" marker i think
AlexDaniel is it something that only works with :my ?
dalek c/spellcheck: 6a24447 | (Tom Browder)++ | doc/Language/exceptions.pod6:
better grammar
psch m: grammar G { token TOP { :state $x = do { say "well, matching"; "foo" }; <{ $x }> } }; G.parse("foo").say 13:13
camelia rakudo-moar d03459: OUTPUT«well, matching␤｢foo｣␤»
jnthn Works with other declarators too, like :constant
AlexDaniel mmmhmm
jnthn It's a syntax for making declarations in vars
Used quite heavily in the Perl 6 grammar
Often for contextuals
psch right, only declarators, not all statements
jnthn MasterDuke: I think adding further methods to BOOTSTRAPATTR would be fine, or seeing if we can eliminate any of the users of it where it isn't absolutely needed 13:14
[Coke] one of the files in docs/ is causing a 'but got null' error in xt/aspell.t (on doc's spellcheck branch) 13:15
gist at gist.github.com/coke/22c9c8af383b4...cb44e70f58
MasterDuke adding methods is relatively straightforward, how would i eliminate users? 13:16
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jnthn MasterDuke: See if there's anywhere that is using BOOTSTRAPATTER that could actually just use Attribute 13:16
(I don't know if there are any.)
p3rln00b
.oO( a loaded machine gun would do... )
[Coke] wonders where 'but got null' comes from, doesn't see it in source. 13:17
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AlexDaniel [Coke]: it is low level, I think 13:18
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[Coke] looked in nqp, moar, and rakudo. 13:19
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AlexDaniel [Coke]: maybe this? github.com/MoarVM/MoarVM/blob/2eed.../ops.h#L33 13:21
psch m: use nqp; class A { has str $!a; method BUILD { nqp::chars($!a) } }; A.new
camelia rakudo-moar d03459: OUTPUT«chars requires a concrete string, but got null␤ in method BUILD at <tmp> line 1␤ in block <unit> at <tmp> line 1␤␤»
psch there was something else that got a similar error, i forgot what though
[Coke]: that ^^^ is #126492 btw 13:22
synopsebot6 Link: rt.perl.org/rt3//Public/Bug/Displa...?id=126492
[Coke] AlexDaniel, thanks.
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pmurias hi 13:30
DrForr Afternoon.
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[Coke] so, I think the root cause here is my run()'s - no matter what order I put the filesi n, I can only run 250 tests. 14:30
is there a resource here that isn't getting claimed? github.com/perl6/doc/blob/spellche....t#L25-L40 (wondering if I need to explicitly free up my run()) 14:32
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[Coke] ... if I just diag the exitcodes on the Proc's returned by those two runs, the test gets past 250 files. :| 14:34
dalek c: b25a44a | (Luca Ferrari)++ | doc/Language/concurrency.pod6:
Explain the Promise available statuses.
 14:35
c: d084947 | RabidGravy++ | doc/Language/concurrency.pod6:
Merge pull request #948 from fluca1978/master

Explain the Promise available statuses.
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lizmat [Coke]: open file handles ? 14:41
AlexDaniel [Coke]: what version of rakudo are you using? 14:42
asking just in case
rindolf Hi all! This code is much slower with "perl6" from rakudobrew than it is with its python2/python3 equivalent (even without pypy, which is even faster) - github.com/perl6/perl6-examples/bl...shlomif.p6 . What can I do? 14:43
AlexDaniel mainly because :in → :out thing was broken before #129291
synopsebot6 Link: rt.perl.org/rt3//Public/Bug/Displa...?id=129291
lizmat rindolf: lose the return statements that are not needed 14:44
El_Che lizmat: thx for fixing the JSON error output bug 14:45
yoleaux 03:04Z <p3rln00b> El_Che: JSON handler now fixed: rt.perl.org/Ticket/Display.html?id=129810
lizmat El_Che: Zoffix did that, so Zoffix++
El_Che oh, it was one of zoffix robots
:)
AlexDaniel lizmat: how much do you win by doing this? 14:46
wasn't it optimized a it?
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rindolf lizmat: which ones? 14:46
lizmat m: sub a() { 42 }; for ^1000000 { a }; say now - INIT now 14:47
camelia rakudo-moar 6531ef: OUTPUT«0.20082102␤»
lizmat m: sub a() { return 42 }; for ^1000000 { a }; say now - INIT now
camelia rakudo-moar 6531ef: OUTPUT«0.503920␤»
[Coke] AlexDaniel: This is Rakudo version 2016.08.1 built on MoarVM version 2016.08
lizmat AlexDaniel: ^^^
rindolf: all the ones that are the last statement in a sub 14:48
rindolf lizmat: ah.
lizmat rindolf: add --> Nil to the signature for the ones with a bare 'return'
rindolf lizmat: what about the "return;" ones?
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lizmat sub a(-->Nil) { ... no return needed } 14:48
[Coke] AlexDaniel: updating to .09 14:49
rindolf lizmat: what's the exact notation?
lizmat sub a(-->Nil) { ... no return needed }
rindolf lizmat: ah, and what if there are arguments?
AlexDaniel [Coke]: yeah
lizmat sub a($a, $b -->Nil) { ... no return needed }
actually, --> Nil would be better readable :-) 14:50
AlexDaniel hm, it does affect it
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bioduds how do I use a variable here? my $dbh = DBIish.connect( "SQLite", :database<$db-name> ); 14:59
on $db-name?
it is getting the literal of it
moritz bioduds: :database($db-name) 15:00
the :name<...> form ie specifically for literals
s/ie/is/
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rindolf lizmat: thanks! But it's still very slow. 15:01
moritz rindolf: have you profiled it? 15:03
perl6 --profile yourscript.p6
AlexDaniel rindolf: you can also try using native ints to see if it is going to help 15:04
rindolf: these numbers are pretty small so it is proaly appropriate
lizmat rindolf: what AlexDaniel and moritz said
bioduds moritz : tx
as usual, I'm having problems interpolating vars with 15:05
withq
with q, sorry
moritz q doesn't interpolate
that might explain it
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bioduds please, tell me how to do this? my $sth = $dbh.do( qq:to/STATEMENT/ ); DROP TABLE IF EXISTS $db-hashed STATEMENT 15:07
qqw?
moritz bioduds: looks fine to me as is 15:09
bioduds weird, im getting this as error Use of uninitialized value $!last-sth-id of type Any in string context 15:10
moritz doesn't seem related to what you pasted here at all 15:11
gfldex .oO( If you write a module, please consider :D )
moritz it's possible to have more than one error in the same file :-)
bioduds oh, I think I got it 15:12
cant start table name with number
moritz you probably have to quote it if you want to do that 15:14
AlexDaniel \o/
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[Coke] AlexDaniel: no love, still dies after 250. 15:18
[Coke] tries HEAD
rindolf moritz: AlexDaniel : lizmat : here is the profile information - www.shlomifish.org/Files/files/text...18954.html
AlexDaniel [Coke]: sounds great!
[Coke]: meaning that you've proably stumbled upon another run() bug!
maybe 15:19
[Coke]: I'm not sure, but maye you can try .close()-ing some handles 15:20
smls \o/ 15:21
smls finally nailed down an elusive concurrency-related data corruption bug in a Perl 6 script
AlexDaniel yay! sounds great too!
smls It appears that &dir and/or IO::Path is not quite thread-safe...
AlexDaniel smls: ummm… maybe you want to take a look at… 15:22
smls I have a golfed script, will RT shortly... :)
AlexDaniel smls: #129781 this?
synopsebot6 Link: rt.perl.org/rt3//Public/Bug/Displa...?id=129781
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smls AlexDaniel: In my case, concurrent `dir` sometimes gives me an internally inconsistent IO::Path 15:23
whose .Str representation disagrees with everything else (.gist, .perl, .absolute...) 15:24
moritz rindolf: there's nothing that stands out overly much from a cursory glance at the profile, and I don't have time to dig deeper
AlexDaniel smls: … yeah. Submit a ticket for sure 15:25
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bioduds got it working, thanks :) 15:25
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rindolf lizmat: what happened to the perl6 JVM backend? It is not mentioned anywhere in the README.md of rakudobrew 15:32
p3rln00b rindolf: Nothing happened to it. rakudobrew is a 3rd-party utility. See Rakudo's documentation. 15:36
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p3rln00b rindolf: github.com/rakudo/rakudo/blob/nom/...LL.txt#L36 15:36
p3rln00b starts to share the sentiment of avoiding suggesting people use rakudobrew 15:37
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dataf3l p6: say 3 15:38
camelia rakudo-moar 92c092: OUTPUT«3␤»
dataf3l cool
hey guys, after a weekend of google search and a bit of frustration, I come for help
I’m a perl6 newbie 15:39
p3rln00b m: say ३३
camelia rakudo-moar 92c092: OUTPUT«33␤»
p3rln00b dataf3l: join the club! :)
dataf3l I’d like to know how to setup a perl6 webserver, like nodejs or perhaps golang, examples I found online mentioning the HTTP Simple package didn’t work
I need to listen to a port and return json, you know, the simple stuff 15:40
nothing fancy
I was considerinf using apache and CGI, but somehow it feels wrong to do that.
p3rln00b dataf3l: what HTTP Simple package do you mean?
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bioduds metaprogramming its own language is messy :) 15:41
RabidGravy HTTP::Server::Tiny is probably the easist
dataf3l this one
szabgab.com/http-server-in-perl-6.html
p3rln00b That's... from 2011 :) 15:42
dataf3l yeah, that’s probably the reason :(
p3rln00b dataf3l: see github.com/tokuhirom/p6-HTTP-Server-Tiny and JSON can JSON portion can be done with modules.perl6.org/repo/JSON::Fast 15:43
RabidGravy It's literally "use HTTP::Server::Tiny; HTTP::Server::Tiny.new.run(sub ($env) { return 200, [], ["something or other"] })"
dataf3l you mean this one, RabidGravy? use HTTP::Server::Tiny;
github.com/tokuhirom/p6-HTTP-Server-Tiny
??
RabidGravy yes
dataf3l and I need to use panda to install it, correct? 15:44
RabidGravy or zef
dataf3l never heard of zef, “to the googles!” 15:45
rindolf p3rln00b: is there a better alternative to rakudobrew that is equally as convenient?
dataf3l installing zef... 15:47
to be honest, I kinda expected a web server to be a part of the standard perl6 library, just like on golang or in python. 15:50
I fear for my future
what will happen 10 years from now, will this module still be arround?
ok, I installed zef, but it looks like it “failed to update p6c”, no idea what that means, perhaps that module (HTTP::Server::Tiny) does not exist as a zef module? 15:51
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[Coke] dataf3l: are you behind a corporate firewall, by chance? 15:57
dataf3l no, my friend, but my internet is sucky, do you think it may be a network failure? 15:58
[Coke] don't know. just reminiscent of issues I've had with panda when trying to go through the firewall here.
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dataf3l I’m going to be honest, I moved to perl6 because golang didn’t offer the expressiveness I feel I need to write a specific type of sort-of-generic algorithm, however, I’m a little preoccupied by the size of the community. 15:59
I’m honestly worried about a couple things: #1: jobs #2: libraries
[Coke] AlexDaniel: same failure with 2016.09-163-g92c0921
dataf3l should I worry at all, or should I wait, and in time, this will all be solved?
[Coke] dataf3l: sure, those are two very reasonable things to be worried about.
dataf3l I tried this command: panda install HTTP::Server::Tiny, it fails the unit tests. 16:00
Result: FAIL
The spawned process exited unsuccessfully (exit code: 1)
in sub run-and-gather-output
[Coke] If I was hoping to make a living learning something, I'd probably make sure I could do that before spending the time.
dataf3l in sub run-and-gather-output at /usr/local/Cellar/rakudo-star/2016.07/share/perl6/site/sources/24811C576EF8F85E7672B26955C802BB2FC94675 (Panda::Common) line 85
argh, all I needed was a simple webserver… :|
[Coke] dataf3l: what version of perl6 are you using?
(perl6 --version) 16:01
dataf3l Felipes-MacBook-Pro:p6 a$ perl6 --version
This is Rakudo version 2016.07.1 built on MoarVM version 2016.07
implementing Perl 6.c.
[Coke] ok. two months old, but should still be ok.
dataf3l I just installed it using “brew install perl6” which is kinda the “normal” way of installing stuff on osx
[Coke] I prefer macports, but sure. ;) 16:02
dataf3l I’ll get the latest 16:03
[Coke] (trying to install HTTP::Server::Tiny here with panda on 2016.09)
dataf3l: I just had it fail a bunch of tests here. 16:05
dataf3l you have the latest as well?
I’m reading online about something called Bailador 16:06
should I be using that instead?
[Coke] I've used bailador for a work project, I've been happy with it.
I think my tests are failing locally because I'm going through the corporate http proxy for the 127.0.0.1 tests. 16:07
moritz that might be a bad idea, yes :-)
p3rln00b rindolf: yes,the Rakudo Star package which is what we ship for regular users' consumption: rakudo.org/downloads/star/ Rakudobrew is for using multiple rakudo versions at the same time and isn't something designed for regular users.
[Coke] this worked: http_proxy= GIT_PROTOCOL=https panda install HTTP::Server::Tiny 16:08
rindolf p3rln00b: I'm not a regular user.
p3rln00b rindolf: you sure sound like one.
[Coke] moritz: not sure how to whitelist certain hosts; think I got lucky that all the panda networking stuff is over https.
so, dataf3l - the install did work here once I got the networking setup right. 16:09
dataf3l I’m installing Bailador
looks closer to Sinatra 16:10
p3rln00b It is.
dataf3l: it's at a much earlier stage of development though. Last I tried it half a year ago, it wasn't able to even support concurrent connections. 16:11
dataf3l but will it support concurren connections now?! :)
p3rln00b dataf3l: check the commit history :)
dataf3l fails to install using panda 16:12
p3rln00b dataf3l: with you comparing Perl 6 to golang/python... keep in mind we're much younger (in terms of stability; we've just released last December) and the development is nearly entirely volunteer-driven (with no multi-billion company backing).
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p3rln00b dataf3l: personally, I wouldn't use Perl 6 for anything web, at the moment. There's still a lot of work to do for optimization and memory leak hunting for it to be a suitable tool for the job. 16:13
Might be OK for a simple web service that serves JSON, but then, if you're writing something that simple, you won't get benefits of Perl 6's expressive power anyway. 16:14
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moritz p3rln00b: a thing doesn't has to be simple, just because it spits out JSON 16:15
p3rln00b Sure. That's why I explicitly said for *simple* web service. 16:16
dataf3l: Bailador installs fine for me with zef on 2016.09-2-gc4fd9f5 16:17
dataf3l: zef being an alternate (and IMO better) installer: github.com/ugexe/zef 16:18
[Coke] dataf3l:(December release) focus this year from the perl6 devs is stability and performance improvements. 16:19
p3rln00b Yeah, we got more than twice faster since Dec. 16:20
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bazzaar o/ perl6 16:20
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p3rln00b \o 16:21
RabidGravy [Coke], was there actually a problem with HTTP::Server::Tiny or was it just your environment messing you up?
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dataf3l ==> Successfully installed Bailador 16:22
p3rln00b \o/
dataf3l I kinda hoped to be able to do web development with JUST the standard library, I guess golang spoiled me... 16:23
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p3rln00b heh 16:23
Well, you *can* :) It's just won't be super fun.
RabidGravy I actually switched the Audio::StreamThing to using HTTP::Server::Tiny the week and it's working swimmingly
bazzaar hi, in writing a bit of code to parse a jumbled mess of text, I noticed that a syntax error in regex substitution, resulted in an error message way down the code
m: my $b = "dummy code"; my $a = Bazzaar; $a ~~ s/"i"/; $b = "dummer code"; my $c = "dummy cod"; my $d = "dumb koft"; say $a; 16:24
camelia rakudo-moar 92c092: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Variable '$c' is not declared␤at <tmp>:1␤------> 3r; $a ~~ s/"i"/; $b = "dummer code"; my 7⏏5$c = "dummy cod"; my $d = "dumb koft"; s␤»
p3rln00b bazzaar: 'cause it thinks you'
bazzaar: 'cause it thinks your code is part of the substitution string 16:25
[Coke] do we have a list of env vars that impact rakudo/moar? 16:26
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[Coke] RabidGravy: just my env 16:26
RabidGravy cool
p3rln00b [Coke]: docs.perl6.org/programs/00-running..._VARIABLES
bazzaar yes, understood, but maybe if the error message were to say that the substitution string included several semicolons, it could help debug
dataf3l I ran apache’s ab on Bailador’s helloworld, but I think performance may be acceptable, but I’m not sure if I should intepret the results as “can concurrently handle requests” or not... 16:27
gist.github.com/dataf3l/2526fc1b18...b4c96afa1f
I JUST ran it on my mac book pro, core i5 16:28
p3rln00b dataf3l: it's easy to test. Stick sleep 30 into a route and try to get a response on another route
dataf3l ok
[Coke] not sure if it's desirable, but you can wrap your route handling block in a start {} to make it run async.
p3rln00b [Coke]: how would you respond then?
[Coke] (just the block; wouldn't make the route handler -itself- concurrent if it's not) 16:29
p3rln00b: in my case, it was for a github web hook - so I needed a quick response, and a long running async handler to do the heavy lifting.
(not the normal case)
RabidGravy doesn't it take a Supply or a Channel as the response body? 16:31
dataf3l preliminary tests show in my machine it was not multi-threaded.
I ean the test you recommended.
p3rln00b RabidGravy: wasn't when I tried in April, but I think ufobat was planning on fixing that
dataf3l single thread.
p3rln00b Not sure if they did already
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dalek c: a8e6e7d | titsuki++ | doc/Type/Attribute.pod6:
Fix the example of the Attribute.type method
 16:32
c: 9a5caec | titsuki++ | doc/Type/Attribute.pod6:
Merge pull request #951 from titsuki/fix-type

Fix the example of the Attribute.type method
RabidGravy ah right, I knew there was a reason for using HST for the streaming server ;-)
p3rln00b :D
dataf3l so Tiny then?
bazzaar so my point was really to highlight the apparent 'un-relatedness' of the error message to the likely syntax error. 16:37
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p3rln00b bazzaar: sure. It's even worse with heredocs: perl6.party/post/The-Awesome-Errors...rywheredoc 16:38
dataf3l HTTP::Server::Tiny worked correctly on my machine, after I cloned it from the repository
now all I need to do is learn how to use it
RabidGravy nothing to learn really 16:39
dataf3l Thank you guys for your tremendous help, I feel this is an awesome community, hopefully, once I know more about Perl6, I’ll be able to contribute back! :)
RabidGravy use HTTP::Server::Tiny; HTTP::Server::Tiny.new.run(sub ($env) { return 200, [], ["something or other"] });
p3rln00b bazzaar: I recall timotimo was trying to fix the heredoc problem, not sure if they succeeded. Similar issues may exist with s///
dataf3l I need to learn about routing and also about file uploads...
RabidGravy you probably want to look at Crust for routing with HST 16:40
timotimo oh
yes, there was some problems with the fix
and i couldn't come up with something satisfactory yet 16:41
bazzaar p3rln00b: nice article, nice blog, I do read it when something new is posted. 16:43
p3rln00b Yeah, the guy who writes it is super awesome.
timotimo yes 16:45
dataf3l I remember learning about go about a year ago or two, but I also remember trying out golang like, 5 years ago, I remember thinking “this isn’t ready”, and I also remember I dropped it back then. I kinda get the same feelings about Perl6 right now, I feel it quite isn’t ready for production, but If I wait 10 years for it to be, then I will have waited too long, I wonder If I should invest in Perl6 now, and see if it becomes popular in the future, or if I
should wait a year or two for the dust to settle...
bazzaar timotimo: for s///, maybe the error message could report the number of lines of code tied up in the apparent substitution string?
timotimo bazzaar: the problem with my approach was that it put a worry into the list of worries, but it was unable to pop the worry off afterwards 16:46
so if there was an error due to a too-long heredoc, it'd show the worry as "potential issues" and it'd be fine
but if there was no error afterwards, it'd also show up, even if the rest of the program was just fine 16:47
p3rln00b dataf3l: if your time is limited, waiting a year sounds like a plan, try out some other lang. Also an option: join the core development effort :) Lots of stuff to do!
timotimo it's also possible to donate some money that can go into the core development fund which currently funds jnthn to do lots of very good work
i think it's about 50 euros per work-hour
dataf3l wow 16:48
timotimo if you're interested in the kinds of things jnthn does in those work-hours, check out 6guts.wordpress.com/
AlexDaniel dataf3l: I have a slightly different recommendation: start using it today, report bugs 16:49
bazzaar timotimo: understood, a clean, efficient solution is what you want, so not easy to figure out the best way, unfortunately is beyond my level of experience
RabidGravy yeah, I'm with AlexDaniel
AlexDaniel dataf3l: basically, that's what I am doing. If I had to wait a year to start using it I'd kill myself 16:50
dataf3l I don’t think I know enough about it to contribute meaningfully, but I’ll consider it
timotimo i can imagine multiple solutions. one would be to mix in a role that lets you "defuse" a worry, and a function to throw out any defused worries before going on
dataf3l also
AlexDaniel for me, it's not production ready, yes. But with every bug report I file it is getting closer
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timotimo i suppose i could also find the same worry in the list and just splice it out 16:50
(then i'd have to make sure that multiple worries can be handled at the same time for this) 16:51
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timotimo bazzaar: though i also think it's not so important for this solution to be extremely performant, since it'd only ever come into play when things get messed up 16:52
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bazzaar dataf31: I'm a relative newby, but after using perl6 I wouldn't go back to perl5 (which I've used to solve data problems for nigh on 20 years) 16:52
AlexDaniel bazzaar: haha! Got you!
bazzaar: it's l not 1 :D 16:53
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FROGGS o/ 16:54
p3rln00b \o 16:55
AlexDaniel dataf3l: and maybe this will help you consider my recommendation: I submitted over 150 tickets, half of them are resolved
dataf3l: so perl 6 team is doing a great job actually
bazzaar AlexDaniel: ?sorry am a bit slow, not sure I follow, but I'm happy to agree I've been gotten :)
[Coke] AlexDaniel: aha: if I use MVM_SPESH_DISABLE=1, my program works fine. 16:56
AlexDaniel bazzaar: you wrote dataf31 when it is actually dataf3l
dataf3l that’s impressive, AlexDaniel
sorry guys, everybody makes that mistake, but this is my handle, and I have to live with it.
AlexDaniel dataf3l: all that during the last year I think
[Coke] well, you're welcome to hang out here while you figure out if you like perl6 or not, we're happy to answer questions and fix bugs. 16:57
bazzaar AlexDaniel: I'm also a complete novice at typing and irc chat, apologies for my mistake :) 16:58
AlexDaniel that nickname is great. The only reason I noticed it is because it was not highlighted
it's not just that l and 1 look similar, it's the fact that there's 3 in front of it 16:59
maybe foobarl994 will have a similar effect? 17:00
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AlexDaniel still hopes that one day he will have enough free time to fix another half 17:01
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bazzaar timotimo: yes for s///, apparently missing the final '/' before the first ';' is encountered in the code, is going to be a condition that is down to a coding bug most always. So building a flag for that condition would only impact performance for code development for the most part, I would say 17:13
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jnthn bazzaar, timotimo: You might be able to build some error detection by noticing the code is inside a quote construct upon getting an undeclared variable error, and then doing some heuristics (is it on a different line and not a heredoc, for example) 17:16
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AlexDaniel shouldn't it just say when s/// was started? 17:24
m: #`{␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤
camelia rakudo-moar f117a6: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Couldn't find terminator } (corresponding { was at line 1)␤at <tmp>:20␤------> 3<BOL>7⏏5<EOL>␤ expecting any of:␤ }␤»
AlexDaniel ↑ notice how it says “corresponding { was at line 1” 17:25
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AlexDaniel m: #`[[[[␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤␤ 17:25
camelia rakudo-moar f117a6: OUTPUT«5===SORRY!5=== Error while compiling <tmp>␤Couldn't find terminator ]]]] (corresponding [[[[ was at line 1)␤at <tmp>:20␤------> 3<BOL>7⏏5<EOL>␤ expecting any of:␤ ]]]]␤»
jnthn AlexDaniel: Sure, but here we aren't missing a terminator, we're finding an undeclared variable because of the lack of terminator
p3rln00b It's not about finding the terminator, but about interpreting the code that isn't meant to be part of the replacement as part of it.
AlexDaniel ah
right 17:26
jnthn So yes, we'd want to show the line where the quote started; I was just suggesting a way to guess when this situation is happening
So that s/foo/$ba/ does not trip it, for example
p3rln00b bazzaar: that isn't true, as you can have code bugs in strings. s/foo/bar{ some; code; }/ isn't as rare a condition as you imply.
jnthn (where $ba shoulda been $bar)
p3rln00b s/bugs/blocks/; 17:27
heh
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bazzaar p3rln00b: I see 17:27
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bazzaar so maybe raise a flag if the s/// is not completed by the end of the outer block? 17:35
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bazzaar s/outer/enclosing/ 17:37
timotimo how do you figure out the outer block if it's inside the s///? :) 17:38
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bazzaar I'm thinking the block that started prior to the s/// statement, it probably still wouldn't be ideal, as it might be a large block of code? 17:42
timotimo if you're parsing malformed code, there may not be such a thing as "the end of the outer block"
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bazzaar missing curly braces are easier to see than an embedded 's/regex/;' which on the face of it has a paired '/' and a terminating ';' 17:49
timotimo and probably also a newline
bazzaar yes 17:50
timotimo i can imagine wanting to replace something with the literal string ";\n}"
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DrForr Well, *this* is a new error... "class *mumble*::Directive does not support inheritance" - It's admittedly an empty class (not even an attribute), would that be why it's not allowed to be inherited from? 17:55
ufobat RabidGravy, p3rln00b that depends on the progress of the p6w/psgi draft. but in general of course there sould be propper concurrency 17:56
bazzaar so that would be the end of the enclosing block right there, without the terminating '/', so a flag could be raised in case of error being generated in subsequent code?
timotimo could be
are you interested in the code i've written so far so you can get a feel for what it could look like? 17:57
github.com/rakudo/rakudo/commit/d1...656689d55c - this is the commit 17:59
bazzaar well I'd be happy to look, but it might be more than I can comprehend, but maybe I'd be able to ask the odd semi-pertinent question 18:00
timotimo: I'll take a look, thanks for the link 18:01
timotimo it completely lacks the "throw out the worry if the heredoc turned out all right" logic
bazzaar understood
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lizmat rindolf: re www.shlomifish.org/Files/files/text...#/routines , looks like all of the top items are in Perl 6 itself, so it looks like not many improvements are possible (apart from using natives where possible) 18:16
rindolf lizmat: ah. 18:18
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DrForr Okay, this is interesting. 'class Foo::Directive::If { also is Foo::Directive; }' throws the "class Foo::Directive cannot be inherited from" error, whereas "classs Foo::Directive::If is Foo::Directive {...}" doesn't. 18:29
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bioduds $row[2] ~~ s/\n//; 18:31
this is how you remove \n from a string?
DrForr $row[2].chomp # more portable, I assume you want the trailing \n removed. 18:32
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bioduds yes, I'm struggling to put a string back into json format 18:34
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DrForr Then .chomp() should do it. 18:41
bioduds I'm getting this back: "[{ "database": "futs", "ID": 1, "tables": "[{\n \"name\": \"Técnicos\",\n \"hash\": \"1de95e02d872f5b7900e40e3733\"\n},{\n \"name\": \"Times\",\n \"hash\": \"38eefeeae76046601073b604900\"\n},{\n \"name\": \"Campeonatos\",\n \"hash\": \"2eee6323ffcac49a3adca8007d4\"\n}]" },{ "database": "general", "ID": 2, "tables": "[{\n \"name\": \"Estados\",\n \"hash\": \"422c3cc84c65d120d12ee5234bf\"\n},{\n \"name\": \"Cida 18:42
see the \n ?
also, it is bringing me \"
p3rln00b bioduds: what's the problem with it?
bioduds I only need "
it won't parse on JSON.parse back on javascript front
p3rln00b bioduds: have you actually tried? 18:43
bioduds yes
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bioduds SyntaxError: Unexpected token u in JSON at position 0 18:43
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p3rln00b bioduds: and where are you getting this JSON from? 18:43
bioduds retrived from sqlite and using use JSON::Class; 18:44
DrForr Looks like someone's trying to nest a JSON file within a JSON key.
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bioduds exactly, trying to nest it, correct 18:45
DrForr Print the actual data you're getting back from SQLite, I think you're missing a from-json() call somewhere up the line.
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bioduds using use JSON::Tiny; im doing now my $tables = from-json($row[2]).perl; 18:50
getting: "[{ "database": "futs", "ID": 1, "tables": "[{:hash(\"1de95e02d872f5b7900e40e3733\"), :name(\"Técnicos\")}, {:hash(\"38eefeeae76046601073b604900\"), :name(\"Times\")}, {:hash(\"2eee6323ffcac49a3adca8007d4\"), :name(\"Campeonatos\")}]" },{ "database": "general", "ID": 2, "tables": "[{:hash(\"422c3cc84c65d120d12ee5234bf\"), :name(\"Estados\")}, {:hash(\"153c87a219b89c36fa83ad71a53\"), :name(\"Cidades\")}, {:hash(\"1309d560c348
sorry, im a bit confused 18:51
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DrForr Look at what $row[2] is, and I think that's a problem right there, shouldn't it be @row[2]? Or $row.[2] if it's a reference? 18:52
bioduds holly ghost, check this: "[{ "database": "futs", "ID": 1, "tables": "\"\\\"[\\{\\\\n \\\\\\\"name\\\\\\\": \\\\\\\"T\\\\u00e9cnicos\\\\\\\",\\\\n \\\\\\\"hash\\\\\\\": \\\\\\\"1de95e02d872f5b7900e40e3733\\\\\\\"\\\\n},\\{\\\\n \\\\\\\"name\\\\\\\": \\\\\\\"Times\\\\\\\",\\\\n \\\\\\\"hash\\\\\\\": \\\\\\\"38eefeeae76046601073b604900\\\\\\\"\\\\n},\\{\\\\n \\\\\\\"name\\\\\\\": \\\\\\\"Campeonatos\\\\\\\",\\\\n \\\\\\\"hash\\\\\\\": \\
let me see DrForr 18:53
for @rows -> $row { my $tables = to-json($row[2]).perl; my $result = Result.new( ID=>$row[0], database=>$row[1], tables=>$tables ); @json.push( $result.to-json() ); }
I guess is $row[2] is correct
i didn't get this .perl yet 18:54
DrForr That still has the issue. What does '$row.gist' print? (preferably in a pastebin because it's going to get large.) 18:55
ANd I see '
Grr. '\u00e9' in there, that'll have to be converted to Perl 6 syntax before it can be displayed properly.
bioduds $row.gist : [1 futs [{ "name": "Técnicos", "hash": "1de95e02d872f5b7900e40e3733" },{ "name": "Times", "hash": "38eefeeae76046601073b604900" },{ "name": "Campeonatos", "hash": "2eee6323ffcac49a3adca8007d4" }]] [2 general [{ "name": "Estados", "hash": "422c3cc84c65d120d12ee5234bf" },{ "name": "Cidades", "hash": "153c87a219b89c36fa83ad71a53" },{ "name": "Países", "hash": "1309d560c348e2d300e695f3935" }]] 18:57
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DrForr That's an odd mixture there, I think I'd better see just $row.perl; 19:00
These days I'm in the habit of just writing a .dump method somewhere to get human-readable data out as I'm not *really* fond of .gist or .perl output, too dense for my taste. 19:01
bioduds perl6 dbs.pl $[1, "futs", "[\{\n \"name\": \"Técnicos\",\n \"hash\": \"1de95e02d872f5b7900e40e3733\"\n},\{\n \"name\": \"Times\",\n \"hash\": \"38eefeeae76046601073b604900\"\n},\{\n \"name\": \"Campeonatos\",\n \"hash\": \"2eee6323ffcac49a3adca8007d4\"\n}]"] $[2, "general", "[\{\n \"name\": \"Estados\",\n \"hash\": \"422c3cc84c65d120d12ee5234bf\"\n},\{\n \"name\": \"Cidades\",\n \"hash\": \"153c87a219b89c36fa83ad71a53\"\n} 19:03
these \" are making me uneasy 19:04
DrForr So your JSON comes out in column 2. from-json( $row.[2] ) # should return the data structure correctly.
bioduds :)
DrForr Why? It's just because the .perl output uses "", how else is it going to distinguish '"' in the string from '"' in the outer data structure? 19:05
bioduds from-json giving me "Type check failed in assignment to $!tables; expected Str but got Array ($[{:hash("1de95e02d87...) in sub MAIN at ../../../../../../scripts/dbs.pl line 32 in block <unit> at ../../../../../../scripts/dbs.pl line 16 " 19:06
should I structure all in a nested class and use to-json in it? 19:07
DrForr Yes, because $row is a scalar, and contains a *reference* to an array, not the array itself. '$row[2]' assumes that $row is an array, and rather oddly to my way of thinking.
I imagine 'say $row[2]' would return something starting with a '[' character which means that you're trying to treat an array reference as if it were an array. 19:08
lucasb DrForr: you are thinking Perl 5, right? 19:09
bioduds yes 19:11
should I remove the staring [ ?
DrForr lucasb: I'm aware of which channel I'm talking in :) If $row[] does automatic dereferencing now that's great, but the data structure and what he's displaying don't quite match, and that's what I'm getting at.
bioduds starting [
DrForr And I tyop'ed there, I meant 'say $row' would return... 19:12
lucasb I arrived in the middle of the conversation, so idk the details, sorry :)
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DrForr Oh, I'm quite happy to be corrected, no worries. 19:13
bioduds say $row gets me [1 futs { "name": "Técnicos", "hash": "4a71c17e156070bab57d5f8c879" },{ "name": "Times", "hash": "579c076ae1ac930b54caa4c37b" },{ "name": "Campeonatos", "hash": "22c4addfafee958695d99716ab4" }] 19:14
DrForr Okay, so $row *is* a reference to an array, not the array itself. Which is as it should be.
bioduds great, now the smart approach would be to do what? parse the string? 19:15
but I can't remove the \" from it
at least I don't know how
DrForr You can't "remove" the \" from it because the \\ isn't actually there. As I said, it's just Perl's way of telling you that the string's *content* has '"' marks in it. 19:16
m: say 'hi "world" there' 19:17
camelia rakudo-moar f117a6: OUTPUT«hi "world" there␤»
DrForr Bad example :)
m: say ['hi "world" there']
camelia rakudo-moar f117a6: OUTPUT«[hi "world" there]␤»
DrForr m: say ['hi "world" there',1]
camelia rakudo-moar f117a6: OUTPUT«[hi "world" there 1]␤»
DrForr m: say ['hi "world" there',1].perl
camelia rakudo-moar f117a6: OUTPUT«["hi \"world\" there", 1]␤»
DrForr THere.
Sorry for the noise. 19:18
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DrForr So what you need to do is find the actual string that you want to un-JSONify, and process *that*. 19:20
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DrForr I'm a litte surprised that '$row[2]' works, but not very. However it's not giving you the result that you want, so it's time to look again. 19:20
andrzejku_ hello my friends
:)
DrForr m: my $x=[1,'"json"']; say $x[1]; say $x.[1] 19:21
camelia rakudo-moar f117a6: OUTPUT«"json"␤"json"␤»
DrForr So it does autoderef, good to know. 19:22
So $row[2] = from-json($row[2]); # should convert the contents of the JSON string to a Perl 6 data structure and stuff it back into the arrayref. 19:23
(assuming you're using JSON::Tiny here.) 19:24
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bioduds sorry, making trials there 19:30
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DrForr No worries, just pushing around code. 19:30
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andrzejku_ DrForr, hello 19:33
DrForr Evenin'. 19:34
bioduds I can nest a class in Perl6 right?
andrzejku_ DrForr, how are you my friends? 19:35
DrForr Yeah, I'm looking at a 'my class Name { ... }' declaration right now as it happens.
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DrForr Getting close to bedtime as it happens. 19:35
bioduds I'm goint to try to nest as a class and transform all with .to-json from JSON::Class 19:36
DrForr Feel free. Really I think you're just not decoding the right element. 19:37
Having said that I'll note I don't know much if anything about JSON::Class. 19:40
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bioduds got it 19:53
finally
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bioduds DrForr : if you're interested. To make it work I built the array with '[' ~ @futs.join(',') ~ ']'; and stored it as varchar on the db. 19:54
then to retrieve it
this here works for @rows -> $row { $row[2] ~~ s:g/\n//; my $tables = from-json( $row[2] ); my $result = Result.new( ID=>$row[0], database=>$row[1], tables=>$tables ); @json.push( $result.to-json() ); } print '[' ~ @json.join(',') ~ ']'; 19:55
and is recognized back on the javascript
DrForr Still feels a touch odd to me, but if it works... 19:57
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bioduds works :) 20:07
had to clean out the \n before using from-json 20:08
odd, agree
but does what it should
dogbert17 .tell rindolf change 'self.n._format_n;' to e.g. '0 x (30 - self.n.chars) ~ self.n'. sprintf is slow 20:09
yoleaux dogbert17: I'll pass your message to rindolf.
rindolf dogbert17: hi.
yoleaux 20:09Z <dogbert17> rindolf: change 'self.n._format_n;' to e.g. '0 x (30 - self.n.chars) ~ self.n'. sprintf is slow
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dogbert17 rindolf: the difference should be noticable 20:12
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rindolf dogbert17: thanks! It is noticeable. 20:16
dogbert17 rindolf: cool 20:17
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dalek pan style="color: #395be5">perl6-examples: 182078b | (Shlomi Fish)++ | categories/euler/prob551-shlomif.p6:
Optimize by removing explicit returns.

Thanks to lizmat on #perl6.		 20:25
pan style="color: #395be5">perl6-examples: 451dc9b | (Shlomi Fish)++ | categories/euler/prob551-shlomif.p6:
Major optimisation thanks to dogbert17.

sprintf() is slow. ☹
timotimo are explicit returns still very slow? i thought jnthn's recent-ish work gave them a decent boost? 20:27
lizmat timotimo: yes, they are definitely faster but: 20:30
m: sub a() { return 42 }; for ^1000000 { a }; say now - INIT now
camelia rakudo-moar f117a6: OUTPUT«0.967294␤»
lizmat m: sub a() { 42 }; for ^1000000 { a }; say now - INIT now
camelia rakudo-moar f117a6: OUTPUT«0.1990598␤»
timotimo wow
lizmat m: say (9672 / 1990)
camelia rakudo-moar f117a6: OUTPUT«4.860302␤»
timotimo that's certainly a difference
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lizmat also, I think explicit returns are preventing inlining, are they not ? 20:31
jnthn Trouble is, the second one will have gotten a bunch faster too :P
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lizmat stops mucking with Str.match and starts working on the P6W 20:32
jnthn There's some inlining-related sub-optimality there
I forget whether it's that a won't be inlined or return won't be
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Juerd Is there ever any difference in semantics between having 'return' or not having it, for the last statement of a sub? 20:37
If not, couldn't the optimizer just remove it?
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jnthn I thought it actually did that at some point... 20:38
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lizmat pretty sure it isn't anymore, otherwise we shouldn't see this difference in performance, no ? 20:42
jnthn Indee 20:43
*d
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moritz there can be difference, for a rw routine 21:05
because explict return decontainerizes
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nicq20 hello! 21:21
DrForr Evenin'!
lizmat PSA: is there something important I missed the past week that should be mentioned in the Perl 6 Weekly? 21:23
nicq20 Not that I can think of, though I mostly check the Reddit page. 21:26
DrForr ORA did mention Ruth's interview with me in their newsletter. 21:28
MasterDuke moritz asking for book topic suggestions?
DrForr Dunno if it's worthwhile.
lizmat well, I mentioned Ruth's interview already 2 weeks ago in the P6W 21:31
DrForr Yah, I know.
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DrForr I'm just sh*t at this self-promotion thing. 21:32
rindolf nicq20: hi.
dalek href="https://modules.perl6.org:">modules.perl6.org: 9f77cfe | (Martin McGrath)++ | templates/root/index.html.ep:
change 'not set up' repo URLs

Change 'not set up' repo URLs to link to docs.travis-ci.com/user/languages/perl6
  github.com/perl6/modules.perl6.org/issues/47
href="https://modules.perl6.org:">modules.perl6.org: 30cc57d | (Martin McGrath)++ | templates/root/index.html.ep:
Update index.html.ep
href="https://modules.perl6.org:">modules.perl6.org: 90e6c3c | RabidGravy++ | templates/root/index.html.ep:
Merge pull request #62 from MartinMcGrath/patch-1

change 'not set up' repo URLs
21:32 pdcawley joined
nicq20 rindolf: Hello there! 21:33
lizmat rindolf: it's a good thing I'm not on Facebook
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smls bisect: sub t { say $*d }; my $*d = 1; await do { start { t() } } 21:34
bisectable6 smls, Bisecting by exit code (old=2015.12 new=6531ef7). Old exit code: 1
smls, bisect log: gist.github.com/667d94f78e80294dd4...f26c97010b 21:35
smls, (2016-08-19) github.com/rakudo/rakudo/commit/25...b0673f26e2
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rindolf lizmat: ok. 21:37
nicq20: sup?
nicq20 Oh, not too much. Looking at some of the Hacktoberfest issues. 21:39
Trying to get this one done: github.com/perl6/doc/issues/364
smls bisect: my $*A = 42; do { start { $*A++ } }; sleep 1; say $*A
bisectable6 smls, Bisecting by output (old=2015.12 new=6531ef7) because on both starting points the exit code is 0
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bisectable6 smls, bisect log: gist.github.com/6a55852f185c74929a...b5acdd3919 21:40
smls, (2016-08-19) github.com/rakudo/rakudo/commit/25...b0673f26e2
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nicq20 rindolf: Any ideas? 21:41
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rindolf nicq20: don't know. 21:43
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lizmat and another Perl 6 Weekly hits the Net: p6weekly.wordpress.com/2016/10/10/...r-is-near/ 21:45
rindolf lizmat: thanks! 21:47
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smls bisect: [*] set(1,2,3), 21:55
bisectable6 smls, On both starting points (old=2015.12 new=6531ef7) the exit code is 0 and the output is identical as well
smls, Output on both points:
smls bisect: say [*] set(1,2,3),
bisectable6 smls, Bisecting by output (old=2015.12 new=6531ef7) because on both starting points the exit code is 0
smls, bisect log: gist.github.com/488ec128113552a10c...b02c3c263e
smls, (2016-08-30) github.com/rakudo/rakudo/commit/b1...72e9a11558
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AlexDaniel smls: the last one is related to #128758 I think 22:04
synopsebot6 Link: rt.perl.org/rt3//Public/Bug/Displa...?id=128758
smls AlexDaniel: Yes, that's where I got it from... :) 22:05
I wanted to see if a special case was added to numify [*] args, or if single-arg reduce now calls the operator with one arg. 22:06
Apparently, the latter, thanks to TimToady++ 22:07
I wonder why this still doesn't work though: 22:08
m: say [Z] <a b>,
camelia rakudo-moar f117a6: OUTPUT«((a b))␤»
AlexDaniel committable6: 2014.01 say [Z] <a b>,
committable6 AlexDaniel, ¦«2014.01»: No build for this commit
AlexDaniel committable6: 2014.02 say [Z] <a b>,
committable6 AlexDaniel, ¦«2014.02»: No build for this commit
AlexDaniel MasterDuke: /o\ 22:09
MasterDuke: I know why
smls why? 22:10
m: say &infix:<Z>.arity;
camelia rakudo-moar f117a6: OUTPUT«0␤»
smls say infix:<Z>( (<a b>,), )
m: say infix:<Z>( (<a b>,), )
camelia rakudo-moar f117a6: OUTPUT«((a) (b))␤»
smls ^^ Whis is what `[Z] <a b>,` should output. 22:11
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AlexDaniel m: say zip (<a b>,) 22:13
camelia rakudo-moar f117a6: OUTPUT«((a) (b))␤»
AlexDaniel m: say zip <a b>,
camelia rakudo-moar f117a6: OUTPUT«((a b))␤»
AlexDaniel smls: I don't know how it should work. But I know why there is no build for 2014.01 :) 22:14
nicq20 AlexDaniel: So would the ^ twigle be considered a shortcut? 22:17
AlexDaniel: Or is it just a feature that can be considered a shortcut (similar to »)? 22:18
AlexDaniel nicq20: well, instead of writing a proper signature (e.g. ｢sub foo($ticket, $order) { say $ticket, $order }｣ ) one writes ｢sub foo { say $^ticket, $^order }｣. Yeah, sounds like a shortcut that does not work 22:20
we don't have » listed as a trap, don't we? 22:22
nicq20 AlexDaniel: Not that I could find with a search. What about the "Captures" section? 22:25
AlexDaniel nicq20: what about it?
nicq20 AlexDaniel: I was thinking it might fit under that subheading better... but it is not really a capture. 22:26
AlexDaniel not a Capture at all :) 22:27
nicq20: yeah, create a new subheading I guess. “Shortcuts that don't work” or whatever, we can change it later
nicq20: I think it's much more important to document the actual thing than to have this bikeshedding over the heading :) 22:28
nicq20 AlexDaniel: Yeah, it's not like it can't be changed. :)
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AlexDaniel m: say (<30 50 60>, <3 4 5 6>)».&(*.elems) 22:41
camelia rakudo-moar f117a6: OUTPUT«((1 1 1) (1 1 1 1))␤»
AlexDaniel m: say (<30 50 60>, <3 4 5 6>)».elems
camelia rakudo-moar f117a6: OUTPUT«(3 4)␤»
AlexDaniel so in case of ».& it does deepmap
ut for ». it simply does map 22:42
committable6: releases say (<30 50 60>, <3 4 5 6>)».&(*.elems)
committable6 AlexDaniel, ¦«2015.10,2015.11,2015.12,2016.02,2016.03,2016.04,2016.05,2016.06,2016.07.1,2016.08.1,HEAD»: ((1 1 1) (1 1 1 1))
AlexDaniel committable6: releases say (<30 50 60>, <3 4 5 6>)».elems
committable6 AlexDaniel, ¦«2015.10,2015.11,2015.12,2016.02,2016.03,2016.04,2016.05,2016.06,2016.07.1,2016.08.1,HEAD»: (3 4)
AlexDaniel yeah… but why?
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smls AlexDaniel: I think it has to do with whether the routine has the `is nodal` trait (though I don't quite understand that mechanism) 22:48
AlexDaniel .tell perlawhirl whyyyyyyyyy? irclog.perlgeek.de/perl6/2016-10-10#i_13374587 22:49
yoleaux AlexDaniel: I'll pass your message to perlawhirl.
smls I guess if you construct a custom WhateverCode, it doesn;t have that trait
whereas the method itself might
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