🦋 Welcome to the former MAIN() IRC channel of the Raku Programming Language (raku.org). This channel has moved to Libera (irc.libera.chat #raku)
Set by lizmat on 23 May 2021.
codesections github.com/rakudo/rakudo/issues/4423 00:00
(I already mentioned your other find in the Grammar)
thanks for all your help, btw
raydiak from that line, it looks intentional. the fact that it's being called from a rule called "variable" kinda suggests otherwise, though. *shrug* it'll be interesting to see what the experts say. codesections++ good find either way 00:01
of course, always glad to share what I know. thanks for taking me on a little adventure :D 00:02
00:02 reportable6 left 00:03 reportable6 joined
raydiak I can't very easily trace it down just from reading the source either. too many dynamic vars and code mixed into the pattern matching for me to keep track of. I do some cheating with --target=parse 00:05
00:30 bd3i joined 00:35 dpk left, dpk joined 00:37 nine left, nine joined 01:37 quotable6 left, benchable6 left, linkable6 left, committable6 left, notable6 left, squashable6 left, nativecallable6 left, unicodable6 left, reportable6 left, coverable6 left, bloatable6 left, shareable6 left, releasable6 left, tellable6 left, sourceable6 left, greppable6 left, statisfiable6 left, bisectable6 left, evalable6 left 01:38 sourceable6 joined, committable6 joined, unicodable6 joined, evalable6 joined, notable6 joined 01:39 quotable6 joined, reportable6 joined, tellable6 joined, nativecallable6 joined, benchable6 joined 01:40 bisectable6 joined, statisfiable6 joined, linkable6 joined, shareable6 joined, bloatable6 joined, squashable6 joined 01:41 releasable6 joined, coverable6 joined, greppable6 joined
lucs Any special reason why the bots keep getting reset? 01:48
02:11 nine left, camelia left 02:12 camelia joined, nine joined 02:15 Doc_Holliwood left 02:23 _ed joined
_ed is this an OK place for Raku beginners to ask questions? 02:24
lucs Yes
And welcome :)
_ed thank you! 02:25
playing around with some Raku examples 02:26
why does this work:
my @x = '.'.IO
@x.pop.dir.WHAT
but not
'.'.IO.pop.dir.WHAT
(tested those in my repl) 02:27
lucs (on the phone, back in a few minutes, if no one else answers) 02:28
codesections m: say '.'.IO.WHAT; my @a = '.'.IO; say @a.WHAT 02:29
camelia (Path)
(Array)
codesections _ed: the @ sigil indicates that you want to store a Positional thing, so it coerces the Path to an Array. Arrays have a .pop method, but Paths don't 02:30
02:33 _ed left
lucs Hmm... My understanding is different: The assignment to @a places the Path instance as the first array element. 02:33
codesections (also, this is the right place for questions, but it's not the perfect time - many of the channel regulars are in Europe, where its ~4:30am. That's not (at all!) to discourage questions, but just to say that you might not get as many responses as at a different time) 02:34
lucs Uh, _ed left, just saying :/ 02:35
codesections lucs: yeah, that's a better way of putting it
Oh, thanks -- I have join/part notifications turned off
02:36 _ed joined
lucs _ed is back! 02:36
_ed sorry, my internet's been kinda flaky today
lucs codesections: Please repeat your comment?
_ed interesting. --didn't realize `@a = something` wraps somethings in an array. 02:37
codesections _ed: the @ sigil indicates that you want to store a Positional thing, so it stores the Path in an Array. Arrays have a .pop method, but Paths don't
lucs Not that one, the other one :)
codesections Oh, this? (also, this is the right place for questions, but it's not the perfect time - many of the channel regulars are in Europe, where its ~4:30am. That's not (at all!) to discourage questions, but just to say that you might not get as many responses as at a different time)
lucs I guess both are OK :) 02:38
_ed: That was for you.
_ed oh dang. wake 'em up. this is important. lol
codesections But as lucs pointed out, I shouldn't have said that @ 'coerces' the Path -- it stores it in an Array 02:39
_ed ah. i see
I can't tell for certain from the topic -- this channel is logged, but those logs aren't publicly available? 02:40
codesections no, they are: colabti.org/irclogger/irclogger_lo...2021-06-22
moon-child logs should be publicly available
lucs They are, the link used to be in the topic (I think). 02:41
codesections (We might be moving where we keep them soon, but they'll still be public)
moon-child most channels are at least privately logged. Many people keep logs
lucs codesections: Is that right? Why the move?
I'm asking because another channel here (#marpa) uses the same logger, wondering if we should worry. 02:43
_ed thanks all! my raku playtime is over for this evening. l8r
02:43 _ed left
codesections I haven't followed it all that closely. I know Liz is working on a new log site, and but I don't recall exactly why 02:43
moon-child used to be logs.liz.nl, seems to be down right now? 02:44
lucs codesections: Okay, thanks.
moon-child codesections: could just be generally wanting to have control over the logging. I think that's reasonable (though not reason to be concerned about the existing logger)
lucs Fair enough. 02:45
codesections oh, there was this r/rakulang post: www.reddit.com/r/rakulang/comments...where_how/
and here's the problem-solving issue: github.com/Raku/problem-solving/issues/280 02:46
lucs Nice
moon-child (aside: marpa looks very interesting) 02:48
lucs Yep, certainly worth a look. 02:49
03:43 linkable6 left, evalable6 left 03:44 evalable6 joined 03:45 linkable6 joined 03:48 Sisyphus joined 04:00 frost joined 04:06 lucerne joined
Sisyphus Hi there, I'm trying to understand why '.say'...:EVAL prints "(LoweredAwayLexical)". I'd expect it to either print ".say" or "(Any)" 04:26
04:28 jmcgnh left 04:30 jmcgnh joined 04:32 jmcgnh left 04:33 jmcgnh joined 04:42 jmcgnh left 04:45 bd3i left, jmcgnh joined 04:50 Doc_Holliwood joined 04:54 jmcgnh left 05:00 jmcgnh joined, jmcgnh left 05:03 jmcgnh joined 05:07 jmcgnh left 05:10 jmcgnh joined
moritz m: $_ = 42; EVAL '.say' 05:10
camelia 42
05:12 lucerne left 05:13 lucerne joined
moon-child m: say infix:<...>('.say', :EVAL) 05:17
camelia (.say)
moon-child m: say infix:<...>('.say')
camelia (.say)
moon-child Sisyphus: ^^^ 05:18
it just ignores the :EVAL
loweredawaylexical I think is an optimizer artefact? Not sure 05:20
m: my $x = ('.say' ... :EVAL) 05:24
camelia ( no output )
Sisyphus I see. tricky 05:25
moon-child m: my $x = ('.say' ^... :EVAL) 05:26
camelia (LoweredAwayLexical)
06:03 reportable6 left 06:04 reportable6 joined 06:23 ufobat_ joined 06:24 holyghost joined 06:32 abraxxa joined 06:36 abraxxa left 06:37 abraxxa joined 06:42 lucerne left 07:05 Sgeo left 07:29 xinming_ joined 07:32 xinming left 07:37 lucerne joined 07:45 lucerne left, lucerne joined 08:03 lucerne left 08:05 dakkar joined 08:13 Sisyphus left
demostanis[m] Is there an easy way of doing `(1, 2) magic (2, 3) => (3, 5)`? 08:23
moritz m: say (1, 2) Z+ (2, 3) 08:25
camelia (3 5)
moritz m: say (1, 2) X+ (2, 3)
camelia (3 4 4 5)
demostanis[m] I almost found myself, thanks
moon-child m: say (1,2) »+« (2,3) 08:26
camelia (3 5)
moon-child hyperoperators for the win!
demostanis[m] How does it work?
moon-child m: say (1,2) >>+>> 2 #texas variants; also more flexible 08:27
camelia (3 4)
moon-child demostanis[m]: docs docs.raku.org/language/operators#i..._operators
demostanis[m] $c = (2,3) 08:37
(2 3)
> $c Z+ (1,3)
What does that mean?
demostanis[m] < libera.ems.host/_matrix/media/r0/d...essage.txt > 08:38
holyghost m: (2,3) Z+ (1,3)
camelia Potential difficulties:
Useless use of Z+ in sink context
at <tmp>:1
------> 3(2,3) 7⏏5Z+ (1,3)
demostanis[m] I get that same result, but not when I use a variable
m: my $c = (2,3); $c Z+ (1,3)
camelia Potential difficulties:
Useless use of Z+ in sink context
at <tmp>:1
------> 3my $c = (2,3); $c 7⏏5Z+ (1,3)
moon-child docs.raku.org/language/operators#Z...taoperator 08:39
demostanis[m] m: my $c = (2,3); say $c Z+ (1,3)
camelia (3)
holyghost Z links 2 lists
moon-child demostanis[m]: you want to use @ for arrays
m: my @c = (2,3); say @c Z+ (1,3)
camelia (3 6)
holyghost and + is the operator
demostanis[m] I really suck in Raku lol 08:40
moon-child you don't suck, you're learning
dakkar m: my $c = (2,3); say @$c Z+ (1,3)
camelia (3 6)
dakkar demostanis[m]: also that
demostanis[m] What does @$ mean?
dakkar short version: a `$` variable is "a single thing"
holyghost $c in list context 08:41
moon-child @$x means 'use the variable named $x, but pretend it was declared as @x'
dakkar m: my $c = (2,3); say $c.raku; say (@$c).raku
camelia $(2, 3)
(2, 3)
dakkar notice that `$` in front of the first line of output, which means "consider the following to be a single thing"
(I'm not good at explaining this…) 08:42
demostanis[m] Don't worry I understoood
moon-child demostanis[m]: more on sigils here docs.raku.org/language/variables#Sigils
($ and @ are sigils) 08:43
09:13 evalable6 left, linkable6 left, holyghost left 09:14 lucerne joined, evalable6 joined, linkable6 joined 09:36 lucerne left 10:36 evalable6 left, linkable6 left 10:38 linkable6 joined 10:39 evalable6 joined 11:32 sono left
demostanis[m] pastebin.com/raw/PzuDf1wy I don't understand why my code doesn't work. It looks like it's not seeing that 'cid' is in the gathered list. 11:56
lizmat and yet another Rakudo Weekly News hits the Net: rakudoweekly.blog/2021/06/22/2021-...all-steps/ 11:57
with apologies for being 1 day late 11:58
12:02 reportable6 left 12:04 RandalSchwartz left
moritz lizmat++ 12:04
12:05 reportable6 joined 12:07 holyghost joined 12:10 frost left 12:41 holyghost left
dakkar demostanis[m]: those `.say` are confusinc your code, sorry 13:16
m: 1 ∈ gather { take 1; take 2 }
camelia WARNINGS for <tmp>:
Useless use of "∈" in expression "1 ∈ gather { take 1; take 2 }" in sink context (line 1)
dakkar m: say 1 ∈ gather { take 1; take 2 }
camelia True
dakkar m: say 1 ∈ gather { take 1; take 2 }.say
camelia (1 2)
False
dakkar demostanis[m]: that's because you're checking if 'cid' is in *the return value of `say`* 13:17
and that's not what you mean
remove the inner `.say`, and it should work
13:28 holyghost joined
holyghost I'm a bit more afk the following approx. 2 weeks as of RL etc. There's Game::Decision which now has 3-4 API methods and AI::NLP will be on hold now. HAND. 13:29
13:29 holyghost left
demostanis[m] <dakkar "demostanis: that's because you'r"> I already tried, it does the same 13:41
dakkar demostanis[m]: ok, you *also* miss a loop 13:43
demostanis[m] Where? 13:44
dakkar inside the inner gather 13:45
that `if` runs only once
demostanis[m] That's what it's supposed to do?
dakkar sorry, yes, sort of, I had mis-read the regex
demostanis[m] It's saying 'cid' is not in the gathered list 13:47
dakkar pastebin.com/Q5cR03A7 13:48
you were taking the stringification of a match containing multiple sub-matches 13:49
so instead of <<hcl eyr pid>>, you were taking 'hcl eyr pid'
so the ∈ failed 13:50
demostanis[m] Oh rightt.
dakkar `take $_ for $0.list>>.Str` works (there may well be a prettier way to do that)
13:54 frost joined
demostanis[m] What does ~$0 exactly do? Why does it convert a match to all matches? 13:54
It seems like it does 13:55
moritz the ~ just converts the $0 to a string 13:57
and $0 is the same as $/[0], so the first positional capture of a match object
dakkar m: say '123' ~~ /(\d)+/ 14:00
camelia ｢123｣
0 => ｢1｣
0 => ｢2｣
0 => ｢3｣
dakkar if a match is repeated, it will contain a list of sub-matches
tbrowder raydiak: pls let us know when you can access docs.raku.org (i just tried and still no joy) 14:07
MasterDuke coincidentally, just a couple minutes ago i got an email from sky saying they don't have docs.raku.org on their block list, so i removed my account exception and yeah, i can get there now (couldn't yesterday without the exception) 14:11
14:17 Sgeo joined 14:20 frost left
demostanis[m] pastebin.com/4JgyStVW 14:30
What does `The iterator of this Seq is already in use/consumed by another Seq
(you might solve this by adding .cache on usages of the Seq, or
by assigning the Seq into an array)
` mean?
14:41 pragma- left
moritz demostanis[m]: you can only iterate (or index into, or count the elements of) a sequence once 14:54
if you try to to it twice, you'll get that error message 14:55
m: my \seq = gather { take 1; take 2; take 3 }; .say for seq; .say for seq
camelia 1
The iterator of this Seq is already in use/consumed by another Seq
(you might solve this by adding .cache on usages of the Seq, or
by assigning the Seq into an array)
in block <unit> at <tmp> line 1

2
3
moritz m: my \seq = gather { take 1; take 2; take 3 }; .say for seq.cache; .say for seq
camelia 1
2
3
1
2
3
14:59 morte_ joined 15:01 morte_` joined, morte_` left, morte_` joined 15:04 morte_ left 15:06 morte_` is now known as morte_
demostanis[m] Thanks, I didn't know. Why those restrictions? 15:09
dakkar demostanis[m]: because, in principle, Seq are lazy and infinitely long 15:10
also because, if they were generated with a gather/take, to scan them again would require running the code again (with all its side-effects &c, which is usually a bad idea) 15:11
if you want to treat a Seq like a list or an array, you can (as the error message says) call `.cache` on it, or assign it to an array 15:12
15:13 Doc_Holliwood left
dakkar demostanis[m]: additional confusing detail„ 15:13
the bit of your code that triggers that error is the `all` 15:14
15:14 Doc_Holliwood joined
dakkar `all(<1 2 3>) ∈ @something` is the same as `all( 1 ∈ @something, 2 ∈ @something, 3 ∈ @something )` 15:14
(roughly)
so your code is trying to go through the result of the inner `gather` more than once 15:15
which produces the error message
demostanis[m] Ah I get it now. Could the error message be improved?
dakkar maybe? I'm pretty sure suggestions are always welcome
to solve your problem, I think the simplest way is to do `my @keys = gather { ... }; take $i if all(...) ∈ @keys;` 15:16
demostanis[m] At least to say the subroutine that throws the error, not just the line
dakkar (or not use the inner `gather` at all)
15:16 morte_` joined
dakkar demostanis[m]: you have no subroutines 15:17
demostanis[m] the all?
dakkar ah, ok… I *think* that's very complicated to do, but feel free to open an issue on github about it 15:18
but generally, sequences and gather/take are used when you don't know the size of the input, like when reading files or sockets 15:19
in your case, you have fixed input sizes, just use `for` loops
(yes, I know this is not generally applicable, and that understanding the various concept is valuable in itself) 15:20
15:21 morte_ left
Altreus m: sub xp-for-lvl($lvl) { 5 * ($lvl ^ 2) + (50 * $lvl) + 100 }; xp-for-lvl(1) 15:39
camelia ( no output )
Altreus m: sub xp-for-lvl($lvl) { 5 * ($lvl ^ 2) + (50 * $lvl) + 100 }; xp-for-lvl(1).say
camelia one(155, 160)
Altreus why does this return a one()?
dakkar because ^ is not the power operator 15:40
Altreus oh :D
thanks
dakkar (it's the infix version of `one`; it's spelled like that because it's semantically similar to the xor operator, which is historically written as ^, blame C, or maybe BCPL) 15:42
dakkar learns a lot by looking at other people's code and mistakes 15:44
Altreus learns a lot by making them 15:45
16:10 _________ is now known as noodly, noodly is now known as __________ 16:11 __________ is now known as _________
ptc wonders what the new libera "two week two hour rule" will mean for lurkers... 16:13
dakkar ptc: it says "accounts that are older than two weeks but were last used within two hours of registration< 16:14
so as I registered more than two weeks ago, but I used my account today (by logging in), I'm not going to get expired 16:15
ptc yeah, but also if one is going to be offline for a longer period of time, then one has to contact the staff...
jast yeah, everyone who used their account beyond the first two hours after registering is not affected by the new rule
ptc does that mean that one can't go on holiday for e.g. 4 weeks?
dakkar ptc: no, it does not mean that
jast the normal expire time (if you're not affected by the new rule) is 10 weeks
ptc jast: ah, ok. I'd read that differently
jast: cool, thanks for the explanation :-) 16:16
so... I'm guessing I'm ok now?
jast new rule is designed specifically to get rid of squatters
Altreus You have to contact staff if you register a nick, log in within 2 hours, and then immediately leave on holiday :P
ptc yeah, that's what it looks like.
Altreus: :-D 16:17
Altreus of course if you're back within 2 weeks that's fine too
I wonder what "used" means, cos if they hadn't had network issues I doubt I would have logged in since I registered
jast it's all in the explanation 16:18
"used" basically means you're signed in with it
Altreus It defines used but it also fails to define it
jast I only know a single IRC network that ever got this wrong 16:19
there, if someone from the auto-op list didn't rejoin a channel every two weeks, the channel would get dropped
ptc I only read the diff mentioned in the github.io link and hence lacked the rest of the context. I've just read the rest and it makes much more sense now.
thanks for everyone's help!
Altreus ah, here's me thinking the link would be relevant in isolation 16:22
jast you can expand the view to get the rest of the info, but it's not shown fully by default 16:28
Altreus It's a me-problem, not bothering to see if my question is answered in the things I'm not seeing
16:35 dakkar left 16:44 Eddward joined 17:05 morte_``` joined 17:09 morte_` left 17:12 jess left 17:14 bd3i joined 17:21 melezhik joined 17:28 tadzik is now known as ts 17:29 ts is now known as t, t is now known as Guest1648, Guest1648 is now known as tadzik 17:54 bd3i left 18:01 ufobat__ joined 18:03 reportable6 left 18:04 reportable6 joined, ufobat_ left 18:11 xinming_ is now known as xinming
sjn heya folks. 18:15
Do we have a short name for modules.raku.org? "MRO" seems kinda confusing to me. :-)
lizmat raku.land ? 18:24
tellable6 hey lizmat, you have a message: gist.github.com/156ec6da6b5d710af5...75ba3ae57d
SmokeMachine Hi you all! How can I do a regex that accepts and opening "stuff" and its closing pair? 18:27
ugexe '<' ~ '>' ? 18:28
SmokeMachine I mean any opening 18:29
ugexe im not sure there is any concept of what the opposite pair is in unicode 18:30
codesections There is, actually, for a number of pair 18:31
S/pair/pairs/
SmokeMachine something like: my %pairs = "<" => ">", "[" => "]", "(" => ")", "{" => "}"; /{ %pairs.keys } ~ { %pairs{ $0 } } [ something ]/; but better (I don't know if that works) 18:32
ugexe i dont think you can get around creating your own mapping
codesections hold on, I'm pretty sure you can. I went down a rabbit hole about this a while back… 18:34
SmokeMachine I feel like that should be native... shouldn't it? 18:36
(and easy)
ugexe depends, what is the opposite of L?
18:37 abraxxa-home joined
ugexe any solution would certainly be specific to a certain type of character 18:37
SmokeMachine I mean, it should exist a list of openings and closings (and a closing for each opening)
I mean, like #`<...>, #`(...), #`{{{...}}}, etc... we already have it on our source code... 18:38
ugexe those arent three things are not the same so it wouldnt surprise me to find there is no mechanism used to determine the closing character from the opening character 18:42
well for a comment they might be the same, but generally not
SmokeMachine I feel like doing that on a regex should be easy... shouldn't it? 18:43
codesections got it!
ugexe probably
SmokeMachine codesections: how? 18:44
codesections no, I mean I figured out how to do it
m: my regex R { :my $mirror; . {$mirror = $/.uniprop('Bidi_Mirroring_Glyph')} .* (.) <?{$mirror eq $0 }> }; say '()' ~~ /<R>/;
camelia ｢()｣
R => ｢()｣
0 => ｢)｣
codesections m: my regex R { :my $mirror; . {$mirror = $/.uniprop('Bidi_Mirroring_Glyph')} .* (.) <?{$mirror eq $0 }> }; say '(>' ~~ /<R>/;
camelia Nil
SmokeMachine m: my regex R { :my $mirror; . {$mirror = $/.uniprop('Bidi_Mirroring_Glyph')} .* (.) <?{$mirror eq $0 }> }; say '<>' ~~ /<R>/; say '[]'~~/<R>/ 18:46
camelia ｢<>｣
R => ｢<>｣
0 => ｢>｣
｢[]｣
R => ｢[]｣
0 => ｢]｣
ugexe does it work with ~ ?
SmokeMachine it seems to: 18:48
m: m: my regex R { :my $mirror; . {$mirror = $/.uniprop("Bidi_Mirroring_Glyph")} ~ [(.) <?{$mirror eq $0 }>] .*? }; say "<>" ~~ /<R>/; say "[]"~~/<R>/
camelia ｢<>｣
R => ｢<>｣
0 => ｢>｣
｢[]｣
R => ｢[]｣
0 => ｢]｣
ugexe it feels like `$mirror = $/.uniprop("Bidi_Mirroring_Glyph")` shouldnt be needed if the first character was captured 18:49
SmokeMachine don't you feel that should be easier?
ugexe SmokeMachine: that captures the brackets along with the text 18:50
codesections ugexe: yeah, that seems right. That was just a proof of concept/me remembering how it went
SmokeMachine m: my regex R { :my $mirror; . {$mirror = $/.uniprop("Bidi_Mirroring_Glyph")} ~ $mirror .*? }; say "<>" ~~ /<R>/; say "[]"~~/<R>/ 18:51
camelia ｢<>｣
R => ｢<>｣
｢[]｣
R => ｢[]｣
ugexe m: my regex R { :my $mirror; . {$mirror = $/.uniprop("Bidi_Mirroring_Glyph")} ~ $mirror .*? }; say "[foo]"~~/<R>/ 18:52
camelia ｢[foo]｣
R => ｢[foo]｣
ugexe there is no 'foo' match
just [foo]
SmokeMachine m: my regex R { :my $mirror; . {$mirror = $/.uniprop("Bidi_Mirroring_Glyph")} ~ $mirror $<content>=.*? }; say $<content> if "[foo]"~~/<R>/ 18:53
camelia Nil
SmokeMachine m: my regex R { :my $mirror; [. {$mirror = $/.uniprop("Bidi_Mirroring_Glyph")}] ~ $mirror $<content>=.*? }; say "[foo]"~~/<R>/ 18:54
camelia ｢[foo]｣
R => ｢[foo]｣
content => ｢foo｣
ugexe oh yeah
the big problem with this is handling escaped characters
github.com/ugexe/zef/blob/602c54f1...akumod#L18 this attempts to handle escaped characters 18:55
SmokeMachine m: my regex R { :my $mirror; [. {$mirror = $/.uniprop("Bidi_Mirroring_Glyph")}] ~ [<!after \\>$mirror] $<content>=.*? }; say "[foo]" ~~ /<R>/; say "[foo\[bar\]]" ~~ /<R>/ 18:56
camelia ｢[foo]｣
R => ｢[foo]｣
content => ｢foo｣
｢[foo[bar]｣
R => ｢[foo[bar]｣
content => ｢foo[bar｣
ugexe use an unbalanced closing brakcet
m: my regex R { :my $mirror; [. {$mirror = $/.uniprop("Bidi_Mirroring_Glyph")}] ~ [<!after \\>$mirror] $<content>=.*? }; say "[foo]" ~~ /<R>/; say "[f\]oo]" ~~ /<R>/ 18:57
camelia ｢[foo]｣
R => ｢[foo]｣
content => ｢foo｣
｢[f]｣
R => ｢[f]｣
content => ｢f｣
ugexe that should be f\]oo
s/should/what you probably want/
codesections you could always keep a count of nesting depth 18:59
(and maybe use <~~> instead of ~)
ugexe '<' ~ '>' [<( [[ <!before \>|\<|\\> . ]+?]* %% ['\\' . ]+ )>]
without the auto-closing-bracket stuff its possible like this
19:03 MoC joined 19:09 MoC left
guifa Note that a Bidi mirroring glyph is separate/distinct to the idea of the opening and closing . Bidi only says "you can use this glyph when in RTL mode". „ for instance, is used as an opening quotation mark (whose closing pair is ” ), but has no Bidi mirror glyph (AFAICT) because there's only a single reversed comma 19:27
⹁⹁ doesn't exist as a single character 19:28
19:28 morte_``` left
codesections guifa, maybe you know: why doesn't this work: 19:28
m: say unimatch '[', 'Bidi_Mirroring_Glyph', ']' 19:29
camelia False
codesections m: say uniprop '[', 'Bidi_Mirroring_Glyph' # even though
camelia ]
codesections m: say '[' ~~ / <:Bidi_Mirroring_Glyph<]>> / # what I really want 19:31
camelia Nil
guifa hmm
lemme do some tests
codesections guifa++ don't spend long on it – it's not something I have a use for atm; just something that's been bugging me for the paste few months 19:33
S/paste/past/
19:34 MoC joined
codesections er, I guess I wrote that blog post in September. So for the past ~9 months… 19:35
guifa codesections: it's simple, the order's not what you expected ;-)
say unimatch '[', ']', 'Bidi_Mirroring_Glyph';
evalable6 False
guifa say unimatch '[', 'x', 'Bidi_Mirroring_Glyph'; 19:36
evalable6 False
codesections I was about to say that I thought I'd tried that :)
19:37 _ed joined
guifa remember though, verticality is not mirrored — the bidi mirror glyph is really just for display engines to use as a fallback for a poorly encoded font 19:37
so 19:38
m: say unimatch '｢', '｣', 'Bidi_Mirroring_Glyph'
camelia Error encoding ASCII string: could not encode codepoint 65379
in block <unit> at <tmp> line 1
guifa raises eyebrow
19:38 ufobat__ left
guifa and huh, they did make that the mirrored form, weird. That feels weird to me 19:39
19:42 sono joined
codesections m: say unimatch ['{'], '}', 'Bidi_Mirroring_Glyph' # aha! ...but odd 19:43
camelia True
19:43 sono left
codesections er 19:43
m: say unimatch ['{'], 'X', 'Bidi_Mirroring_Glyph' # aha! ...but odd
camelia True
codesections nvmd..
guifa m: (uniprop $_, 'Bidi_Mirroring_Glyph' for <｢ ｣ ⸢ ¿ ? „ , “ ⁅ ‹ ⁈〖 〗 ”> ).join.say 19:46
camelia ｣｢⸣⁆›〖
guifa ^^don't trust it to much, I guess is what I'm saying ;-) 19:47
codesections fair
m: say 'Ⅴ'.unimatch('5', 'Numeric_Value'); 19:48
camelia False
codesections bisectable6: 'Ⅴ'.unimatch('5', 'Numeric_Value');
bisectable6 codesections, Will bisect the whole range automagically because no endpoints were provided, hang tight
codesections, ¦6c (55 commits): «»
codesections, Nothing to bisect!
codesections I thought that used to work…
guifa weird, I get True for that 19:50
tio.run/##K0gtyjH7/784sVJB/VHrEnW9...JUdU3r//8B 19:51
guifa is at office so using TIO
MasterDuke i get false
committable6: releases say 'Ⅴ'.unimatch('5', 'Numeric_Value')
committable6 MasterDuke, gist.github.com/9e942e5046db1d3a7c...5b38e5bd16 19:52
guifa wonders if unicode made adjustments ?
codesections those are non-continuous ranges… 19:53
MasterDuke bisectable6: old=2020.12 new=2021.02.1 say 'Ⅴ'.unimatch('5', 'Numeric_Value')
bisectable6 MasterDuke, Bisecting by output (old=2020.12 new=2021.02.1) because on both starting points the exit code is 0
MasterDuke, bisect log: gist.github.com/88f4e219f585581d01...103ea52b72
MasterDuke, (2021-01-18) github.com/rakudo/rakudo/commit/63...de03a25ce7
MasterDuke hm, yeah, i thought it was supposed to show contiguous ranges 19:54
guifa codesections: it's three distinct ranges, two false with a true in between. Likely the 2015-2016 period was before that property was accessible and/or before it was added to UCD
codesections makes sense
MasterDuke yeah, but i thought it should show a false range, true range, false range 19:55
codesections yeah, which must be a regression from the commit it returned
AlexDaniel Committable doesn't, but bisectable does 19:56
bisectable6: say 'Ⅴ'.unimatch('5', 'Numeric_Value')
bisectable6 AlexDaniel, Will bisect the whole range automagically because no endpoints were provided, hang tight
AlexDaniel Let's try
guifa Yeah, false (not coded into Raku), true (made available in Raku), and false (some interesting reason)
bisectable6 AlexDaniel, Output on all releases: gist.github.com/b821ff40a5053f46df...5f1cb7848d
AlexDaniel, bisect log: gist.github.com/a81b4d6fa42e37af0f...37807d6520
AlexDaniel, Output on all releases and bisected commits: gist.github.com/d1e15a891c0dcf618d...589252c983
MasterDuke ah, nice 19:57
AlexDaniel Ok, not nice... Didn't exactly work
guifa And of course, Unicode's website is currently down for some reason so I can't go peaking at what may have changed
AlexDaniel But good effort, thank you, bisectable
guifa (Properties are subject to change between releases) 19:58
19:58 _ed left
codesections guifa: but if that's the explanation, then there's a bug with uniprop, since it still shows the same values 19:59
guifa github.com/rakudo/rakudo/blob/10c3...2021.02.md 20:03
vrurg Am I the only one for whom t/spec/S26-documentation/02-paragraph.t fails to pass? Weirdly enough, the test last changed in 2020 and somehow it currently fails on 2021.06 too. 20:05
20:05 MoC left 20:07 morte_``` joined
MasterDuke complaining about Pod::To::Text? 20:07
vrurg Aha
Same on 2021.05. I give up... 20:08
MasterDuke # expected out: "ababc\n"
# got err: "\x[1B]===\x[1B]SORRY!\x[1B]===\x[1B] Error while compiling /tmp/getout-2137719-640515.code\nCould not find Pod::To::Text in: <.........>
vrurg Exactly. 20:09
MasterDuke i had a bunch of deserialization segfaults and such recently, which i fixed by nuking my ~/.raku/precomp directory. i thought it would also fix that, but sadly not 20:10
vrurg Since it fails for past rakudo releases I think it's something in moar/nqp since they remain at the latest version. 20:11
20:11 _ed joined
Doc_Holliwood is there another way to enforce eagerness but the keyword? 20:13
context: twitter.com/HrBollermann/status/14...2368778246 20:14
guifa Okay, the best I can come up with the unimatch issue is this commit 20:15
github.com/rakudo/rakudo/commit/63...6f3d0b30e8
That lines up timewise with there being a problem. It notes a bug fix in MoarVM, so maybe there's a mismatch between MVM and Rakudo versions that are causing the issue
codesections guifa: isn't that the one commitable returned earlier? 20:16
guifa Nope. In order you get 2020.11 = OK, 2020.12 = OK, 2021.02 = NOK 20:17
codesections hmm, well I was looking at that commit by following *some* link from ^^^ 20:18
guifa unless I'm misreading the output from MasterDuke 's query
MasterDuke bisectable6 found that commit 20:20
"MasterDuke, (2021-01-18) github.com/rakudo/rakudo/commit/63...e03a25ce7"
AlexDaniel easy test I like to do
guifa totally missed that link. There were so many haha 20:21
AlexDaniel c: 6306f1e0^,6306f1e0 say 'Ⅴ'.unimatch('5', 'Numeric_Value')
committable6 AlexDaniel, ¦6306f1e0^: «True␤» ¦6306f1e: «False␤»
20:25 _ed left 20:44 _ed joined
moon-child m: sub f { say $x; my $x = 5 }; f() 20:54
camelia 5===SORRY!5=== Error while compiling <tmp>
Variable '$x' is not declared
at <tmp>:1
------> 3sub f { say 7⏏5$x; my $x = 5 }; f()
20:54 jdporter joined
moon-child m: sub f { EVAL 'say $x'; my $x = 5 }; f() 20:54
camelia (Any)
moon-child ^^ bug?
jdporter what were you expecting? 20:56
moon-child an error 20:57
21:01 jdporter left 21:02 hazeleiez joined, hazeleiez left, hazeleiez joined 21:05 hazeleiez left 21:18 sono joined
ugexe m: say $::("x"); my Int $x = 5; 21:21
camelia (Int)
ugexe m: say $::("x"); BEGIN my Int $x = 5;
camelia 5
21:28 abraxxa-home left 21:40 morte_``` left 21:41 morte_` joined 21:49 _ed left 21:50 morte_` left, morte_``` joined 21:56 _ed joined 21:58 morte_``` left 22:10 _ed left 22:18 _ed joined
JRaspass What's a good way to get errno via Nativecall under musl and glibc, cglobal ("c", v6), "errno", int32 only works for glibc, I was hoping I could leave out the library name like you can for the native trait but so far no joy. 22:19
moon-child I'm actually surprised that worked at all 22:22
JRaspass Oh? How are you meant to check what the error is after a syscall then? 22:23
moon-child sub __errno_location returns Pointer[int32] is native { ... }
(should work for glibc and musl, not for other platforms) 22:24
JRaspass googles what that is, fwiw the errno example is in the docs
here docs.raku.org/language/nativecall#..._variables
moon-child because errno is tls, and tls wasn't historically in spec. So non-gnu compilers couldn't handle a header with something like __thread int errno. So instead it was implemented as a function
that example should probably be changed, because it is not at all portable 22:27
JRaspass Huzzah, your native sub with this calling convention seems to work: strerror(__errno_location.deref) 22:28
many thanks 22:30
22:31 _ed left 22:35 _ed joined 22:39 _ed left 22:41 melezhik left 22:43 rassoc joined
rassoc say, do we have something like ruby's swapcase in the stdlib? "AbCd".swapcase => "aBcD" 22:45
guifa rassoc: I actually was just looking at that a few days ago and … no 22:46
rassoc ah, a shame, but thanks for the quick response!
codesections not as a method, but you can do it with a regex of the same length as .swapcase 22:47
rassoc let me check the docs 22:48
[Coke] first time building? what's the error? 22:50
22:51 _ed joined
codesections hmm, actually, maybe that's not quite as nice as I was thinking... 22:51
22:55 _ed left
rassoc not really finding anything in the docs that does what i want. will just juggle some .ords since i only have to support ascii, i think 22:56
alright, have a good one!
codesections rassoc: oh, I see it 22:57
m: say 'AbCd'.trans: /<:Lu>/ => $/.lc, /<:!Lu>/ => $/.uc, :g 22:58
camelia Use of Nil.lc coerced to empty string

in block <unit> at <tmp> line 1
Use of Nil.uc coerced to empty string
in block <unit> at <tmp> line 1
codesections m: say 'AbCd'.trans: [/<:Lu>/, /<:!Lu>/] => [$/.uc, $/.lc], :g 22:59
camelia Use of Nil.uc coerced to empty string

in block <unit> at <tmp> line 1
Use of Nil.lc coerced to empty string
in block <unit> at <tmp> line 1
codesections hmm?
m: say 'AbCd'.trans: /<:Lu>/ => $/.lc, :g
camelia Use of Nil.lc coerced to empty string
bd
in block <unit> at <tmp> line 1
codesections m: say 'AbCd'.trans: /<:Lu>/ => $/.lc 23:00
camelia Use of Nil.lc coerced to empty string
bd
in block <unit> at <tmp> line 1
23:00 slu left
codesections hm, that's working locally. Odd! 23:01
moon-child codesections: for me, 'AbCd'.trans: /<:Lu>/ => $/.lc, /<:!Lu>/ => $/.uc, :g evaluates to aAaA
codesections ? hmmm 23:02
moon-child but, hmm, only at the repl. In a file it doesn't
nor raku -e
codesections oh! I think .trans doesn't set $/, so we're both getting incorrect results based on what we have as our prior match 23:03
in the REPL
moon-child oh, I see 23:04
(also, raku has strict evaluation, so arguments are evaluated ahead of time, so they wouldn't get the new $/ even if trans did set it)
guifa Yeah, and trans wasn't designed to work with callable.
moon-child would be cool if trans could take functions, so you could say 'AbCd'.trans: /<:Lu>/ => &lc 23:05
codesections moon-child: oh, that's what it is. .trans is setting it, but for the _next_ call (in the REPL)
23:08 _ed joined
codesections so is something like this ugly beast really the best we can do? vvvv 23:08
m: say 'AbCd'.comb».&{/<:Lu>/ ?? .lc !! .uc}.join
camelia aBcD
guifa I mean, I had 23:09
m: my &swapcase = {.comb.map({my \c=.uniprop;c eq'Ll'??.uc!!c eq'Lu'??.lc!!$_ }).join}; say "aBcdÈfGhî".&swapcase
camelia AbCDèFgHÎ
rassoc there is this also: 23:12
23:12 _ed left
rassoc m: say 'AbCd'.trans: [['a'..'z'], ['A'..'Z']] => [['A'..'Z'], ['a'..'z']] 23:12
camelia aBcD
rassoc any golfing ideas?
guifa rassoc: that won't work for all alphabetic input though
codesections's is probably the most golfed we can get, if you take out the spaces 23:13
moon-child 'AbCd'.trans: .trans: (my @x = [['a'..'z'], ['A'..'Z']]) => @x.reverse
s/.trans: //
guifa m: my &swapcase = {.comb.map({/<:Lu>/??.lc!!.uc}).join}; say "aBcdÈfGhî".&swapcase 23:16
camelia AbCDèFgHÎ
guifa Then you can just use $your-string.&swapcase
moon-child or just swapcase $your-string 23:17
rassoc m: my &swapcase = {.comb.map({/<:Lu>/??.lc!!.uc}).join}; say "aB!".&swapcase 23:18
camelia Ab!
rassoc sweet! might use that when dealing with non-ascii stuff. thanks!
m: my &swapcase = {.comb.map({/<:Lu>/??.lc!!.uc}).join}; say "aBß".&swapcase 23:19
camelia AbSS
rassoc slick!
guifa Note that it's based on Unicode's mapping, so case isn't per se reversible
23:20 sono left
rassoc that's alright, behaves just like ruby's swapcase as far as i can tell 23:21
23:25 m6502 joined 23:50 _ed joined
codesections guifa: it just occurred to me that the way Raku could solve ^^^^ is to add a '#' flag to .subst, following `date`s clean design 23:52
tonyo m: say S:g/ $<lc> = <:Lu> || $<uc> = <:!Lu> /{$<lc>??$<lc>.lc!!$/.uc}/ given "AbCd"
camelia aBcD
codesections the fact that you save the char into a $<lc> capture if it's upper case really bugs me :D 23:53

Powered by Cro and the Raku® Programming Language.

Please report any issues / comments / feature requests as an issue on App::Raku::Log.

Thank you!