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»ö« Welcome to Perl 6! | perl6.org/ | evalbot usage: 'p6: say 3;' or /msg camelia p6: ... | irclog: irc.perl6.org or colabti.org/irclogger/irclogger_log/perl6 | UTF-8 is our friend! 🦋 Set by Zoffix on 25 July 2018. |
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| cpan-p6 | New module released to CPAN! Getopt-Long (0.1.0) by 03LEONT | 01:02 | |
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| Elronnd | is there a way to say 'this string parameter must be composed of only these characters'? | 02:26 | |
| timotimo | you could use a regex match | 02:27 | |
| m: sub only-vowels(Str $a where /^<[aeiou]>*$/) { say "ok $a" }; try only-vowels("abcde"); try only-vowels("ae"); try only-vowels("") | 02:28 | ||
| camelia | ok ae ok |
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| Elronnd | ahhh thx | 02:29 | |
| leont | I rarely find it useful not to have a default option, if only to give a clearer error | 02:31 | |
| Elronnd | that's probably a good idea; this is an internals function called only once though, and that's just to protect against a case that shouldn't happen _anyway_ (checked against outside the callsite) so it's probably fine | 02:36 | |
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| timotimo | the regex check may be relatively expensive, though | 02:37 | |
| so if it's a function that's called often, perhaps check on the performance every now and then | |||
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| ToddAndMargo | Newbie question: is there a way to declare a variable as both a Buf and a Str and then work on it as either a Buf or a Str? Seems to me they are both arrays of bytes | 03:27 | |
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| MasterDuke | ToddAndMargo: there's been some talk of creating/enabling some of the Str functions for Buf. but they're not both arrays of bytes in Perl 6 (in one way) | 03:33 | |
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| MasterDuke | a Str could have multiple bytes combined into one grapheme. manipulating those bytes could result in an invalid string | 03:34 | |
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| cpan-p6 | New module released to CPAN! Net-BGP (0.1.1) by 03JMASLAK | 03:40 | |
| ToddAndMargo | Rats! What would the fastest way to convert a Beuf into a string with NO CONVERSIONS? | 03:53 | |
| I would adore a bunch of string functions converted to for type Buf!!! | |||
| Bug not a Beuf | 03:54 | ||
| Buf not Bug. | |||
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| MasterDuke | what do you mean no conversions? | 03:58 | |
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| tomato_ | Hi, please see a small question: what doe the dollar sign mean in this error message? "# expected: $[1, 2], got: [1, 2]" | 04:13 | |
| Are they different? | |||
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| Elronnd | if I return Nil from a function, and assign a variable to the output of that function, the variable is Any | 05:17 | |
| how can I check if the result of the function was Nil? $result ~~ Any returns True, but that's not very helpful | |||
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| b2gills | You either need to bind to the variable with :=, or set the default of the variable to Nil | 06:16 | |
| m: sub foo ( --> Nil ){}; my $a = foo; say $a; my $b := foo; say $b; my $c is default(Nil) = foo; say $c | 06:17 | ||
| camelia | (Any) Nil Nil |
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| b2gills | Elronnd: ^^^ | 06:18 | |
| Note that sigiless variables are always binding | 06:19 | ||
| m: sub foo (-->Nil){}; my \sigiless = foo; say sigiless | 06:20 | ||
| camelia | Nil | ||
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| Geth | doc: 6a0e6d4428 | (Nick Logan)++ | 2 files CURFS and CURI basics |
07:45 | |
| doc: f0cb1f64fb | (Juan Julián Merelo Guervós)++ (committed using GitHub Web editor) | 2 files Merge pull request #2602 from ugexe/cur-basic CURFS and CURI basics Thanks! |
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| Elronnd | b2gills: ok, thanks | 08:15 | |
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| lizmat | weekly: gfldex.wordpress.com/2019/02/02/nq...n-threads/ | 09:13 | |
| notable6 | lizmat, Noted! | ||
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| Geth | doc: 2c795607d7 | (JJ Merelo)++ | doc/Type/IO/ArgFiles.pod6 Adds an example which fails with invalid filehandles. I couldn't find a way to deal with them, as indicated in #96 and rakudo/rakudo#2666. I asked [this question in SO](stackoverflow.com/questions/545015...ects-too), will reopen if there's some answer that does not involve catching the error. Meanwhile, closes #96 |
09:44 | |
| synopsebot | Link: doc.perl6.org/type/IO::ArgFiles | ||
| synopsebot | RAKUDO#2666 [open]: github.com/rakudo/rakudo/issues/2666 implement a new var @*ARGFILES listing paths for @*ARGS that are existing files | ||
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| jmerelo | hi, lizmat . How''s FOSDEM going? | 10:49 | |
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| jmerelo | m: my $m = (1 => 0.5, 2 => 0.25, 3 => 0.3 ).Mix; say $m | 11:46 | |
| camelia | Mix(1(0.5), 2(0.25), 3(0.3)) | ||
| jmerelo | m: my $m = (1 => 0.5, 2 => 0.25, 3 => 0.3 ).Mix; say 2 (elem) $m | ||
| camelia | True | ||
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| cpan-p6 | New module released to CPAN! App-Prove6 (0.0.9) by 03LEONT | 15:03 | |
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| smallick | say 0 | 16:06 | |
| evalable6 | 0 | ||
| smallick | m: say 1 | 16:07 | |
| camelia | 1 | ||
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| Geth | doc: 675330d619 | cfa++ | 6 files a → an (#2604) |
18:24 | |
| doc: e45f0317e1 | cfa++ | 7 files an → a, an → and (#2604) |
18:27 | ||
| timotimo | .seen cygx | 18:29 | |
| yoleaux | I saw cygx 10 Jan 2019 19:56Z in #moarvm: <cygx> if it solves a legitimate problem, I wouldn't let purity be the enemy of pragmatism... | ||
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| timotimo | .tell cygx i want to put something in the ecosystem to bridge Image::RGBA::Text and SDL2::Raw, how does that sound to you? | 19:10 | |
| yoleaux | timotimo: I'll pass your message to cygx. | ||
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| TreyHarris | This is interesting... I was getting tired of ANSI line noise in my compilation buffer in Emacs, so I added a hook to colorize the output. But it only works for runtime errors. Compile-time errors still show as '^[===^[SORRY!^[===^[ Error while compiling -'. | 19:31 | |
| I wonder what Emacs could be seeing differently in the two cases? | |||
| moritz | I think there is an environment variable to suppress the ANSI codes | ||
| timotimo | is that a difference between stdout and stderr being used? | 19:32 | |
| TreyHarris | Yeah, I'll go that route next, but I was getting pretty colors for runtime errors. :-) | ||
| Shouldn't both noparse and divide-by-zero (the two cases I was comparing just now) both go to stderr? | |||
| timotimo | probably | ||
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| TreyHarris | They both go to stderr, so I'm going to guess it may be that the filter isn't equipped to deal with a output stream that begins with escape codes perhaps? That's the only difference I see immediately. I guess I can load ANSI myself and note something to see | 19:38 | |
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| Geth | doc: 0434083c02 | cfa++ | doc/Language/testing.pod6 /type/Role (broken) → /language/objects#Roles |
20:37 | |
| synopsebot | Link: doc.perl6.org/language/testing | ||
| doc: d189ee1b86 | cfa++ | 4 files /type/EVAL (broken) → /routine/EVAL |
20:39 | ||
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| gfldex | lolibloggedalittle: gfldex.wordpress.com/2019/02/03/th...a-channel/ | 21:31 | |
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| timotimo | gfldex: you can use a semaphore, or atomic integers to get that 64-at-the-same-time thing going; another thing i like doing is have a channel for "tickets" and receiving from the channel is "taking a ticket" and sending to it is "freeing the ticket" and you just send, for example, 64 tickets at the very start to fill the channel | 21:42 | |
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| Xliff | m: say π - 4 * ([+] <1 -1> <</<< (1,3,5,7,9...20)) | 21:54 | |
| camelia | 0.09975303466039076 | ||
| Xliff | m: say π - 4 * ([+] <1 -1> <</<< (1,3,5,7,9...10000)) | 21:55 | |
| camelia | 0.0001999999980029088 | ||
| Xliff | m: say 3 + [+] ((2, 4...*).map: -> $i {($i % 4 - 1) * 4/[*] $i..($i+2)})[^1000] | 21:57 | |
| camelia | 3.1415926533405423 | ||
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| Xliff | m: ((2, 4...*).map: -> $i {($i % 4 - 1) * 4/[*] $i..($i+2)})[^1000] | 21:58 | |
| camelia | ( no output ) | ||
| Xliff | m: ((2, 4...*).map: -> $i {($i % 4 - 1) * 4/[*] $i..($i+2)})[^1000].say | ||
| camelia | (0.166667 -0.033333 0.011905 -0.005556 0.00303 -0.001832 0.00119 -0.000817 0.000585 -0.000433 0.000329 -0.000256 0.000204 -0.000164 0.000134 -0.000111 0.000093 -0.000079 0.000067 -0.000058 0.00005 -0.000044 0.000039 -0.000034 0.00003 -0.000027 0.00002… | ||
| Xliff | m: say 3 + [+] ((2, 4...*).map: -> $i {($i % 4 - 1) * 4/[*] $i..($i+2)})[^1000] | 21:59 | |
| camelia | 3.1415926533405423 | ||
| Xliff | m: say 3 + [+] ((2, 4...*).map: -> $i {($i % 4 - 1) * 4/[*] $i..($i+2)})[^30] | ||
| camelia | 3.1415842726746206 | ||
| Xliff | m: asy 22/7 | 22:04 | |
| camelia | 5===SORRY!5=== Error while compiling <tmp> Undeclared routine: asy used at line 1. Did you mean 'any', 'say'? |
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| Xliff | m: asy (22/7) | ||
| camelia | 5===SORRY!5=== Error while compiling <tmp> Undeclared routine: asy used at line 1. Did you mean 'say', 'any'? |
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| Xliff | m: say (22/7) | ||
| camelia | 3.142857 | ||
| Xliff | m: say 22/7 | ||
| camelia | 3.142857 | ||
| Xliff | m: say 23/7 | ||
| camelia | 3.285714 | ||
| Xliff | m: say 22/7 | ||
| camelia | 3.142857 | ||
| Xliff | m: say 22/7.^name.say | ||
| camelia | Int 22 |
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| Xliff | m: say (22/7).^name.say | ||
| camelia | Rat True |
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| timotimo | gfldex: i think you can save just a little bit of memory by defining @dirs to be a "my str @dirs" | 22:09 | |
| Xliff | m: say (22/7).base-repeating | 22:12 | |
| camelia | (3. 142857) | ||
| Xliff | m: say (22/7).base-repeating.say | ||
| camelia | (3. 142857) True |
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| Xliff | m: say (335/113).base-repeating.say | ||
| camelia | (2. 9646017699115044247787610619469026548672566371681415929203539823008849557522123893805309734513274336283185840707) True |
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| Xliff | m: say (344/113).base-repeating.say | ||
| camelia | (3. 0442477876106194690265486725663716814159292035398230088495575221238938053097345132743362831858407079646017699115) True |
22:13 | |
| Xliff | m: say (355/113).base-repeating.say | ||
| camelia | (3. 1415929203539823008849557522123893805309734513274336283185840707964601769911504424778761061946902654867256637168) True |
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| Xliff | m: say 3~(355/113).base-repeating[1] | 22:15 | |
| camelia | 31415929203539823008849557522123893805309734513274336283185840707964601769911504424778761061946902654867256637168 | ||
| Xliff | m: say 3~(355/113).base-repeating[1].split.comb(2).map(*.join(' ')) | ||
| camelia | Cannot resolve caller split(Str:D: ); none of these signatures match: (Str:D: Regex:D $pat, $limit is copy = Inf;; :$v is copy, :$k, :$kv, :$p, :$skip-empty, *%_ --> Seq:D) (Str:D: Str(Cool) $match;; :$v is copy, :$k, :$kv, :$p, :$skip-emp… |
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| Xliff | m: say 3~(355/113).base-repeating[1].comb(2).map(*.join(' ')) | ||
| camelia | 314 15 92 92 03 53 98 23 00 88 49 55 75 22 12 38 93 80 53 09 73 45 13 27 43 36 28 31 85 84 07 07 96 46 01 76 99 11 50 44 24 77 87 61 06 19 46 90 26 54 86 72 56 63 71 68 | ||
| Xliff | m: say (3~(355/113).base-repeating[1]).comb(2).map(*.join(' ')) | 22:16 | |
| camelia | (31 41 59 29 20 35 39 82 30 08 84 95 57 52 21 23 89 38 05 30 97 34 51 32 74 33 62 83 18 58 40 70 79 64 60 17 69 91 15 04 42 47 78 76 10 61 94 69 02 65 48 67 25 66 37 16 8) | ||
| Xliff | \o/\ | ||
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| Xliff | m: say (3~(355/113).base-repeating[1]).comb(2) | 22:38 | |
| camelia | (31 41 59 29 20 35 39 82 30 08 84 95 57 52 21 23 89 38 05 30 97 34 51 32 74 33 62 83 18 58 40 70 79 64 60 17 69 91 15 04 42 47 78 76 10 61 94 69 02 65 48 67 25 66 37 16 8) | ||
| Xliff | m: say (3~(355/113).base-repeating[1]).comb(2).perl.say | 22:39 | |
| camelia | ("31", "41", "59", "29", "20", "35", "39", "82", "30", "08", "84", "95", "57", "52", "21", "23", "89", "38", "05", "30", "97", "34", "51", "32", "74", "33", "62", "83", "18", "58", "40", "70", "79", "64", "60", "17", "69", "91", "15", "04", "42", "47"… | ||
| Xliff | m: say (3~(355/113).base-repeating.join.comb(2).perl.say | 22:41 | |
| camelia | 5===SORRY!5=== Error while compiling <tmp> Unable to parse expression in parenthesized expression; couldn't find final ')' (corresponding starter was at line 1) at <tmp>:1 ------> 0313).base-repeating.join.comb(2).perl.say7⏏5<EOL> … |
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| Xliff | m: say (3~(355/113).base-repeating.join('').comb(2).perl.say | ||
| camelia | 5===SORRY!5=== Error while compiling <tmp> Unable to parse expression in parenthesized expression; couldn't find final ')' (corresponding starter was at line 1) at <tmp>:1 ------> 3base-repeating.join('').comb(2).perl.say7⏏5<EOL> … |
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| Xliff | m: say (355/113).base-repeating.join('').comb(2).perl.say | ||
| camelia | ("3.", "14", "15", "92", "92", "03", "53", "98", "23", "00", "88", "49", "55", "75", "22", "12", "38", "93", "80", "53", "09", "73", "45", "13", "27", "43", "36", "28", "31", "85", "84", "07", "07", "96", "46", "01", "76", "99", "11", "50", "44", "24"… | ||
| Xliff | m: say (355/113).base-repeating.join.comb(2).perl.say | ||
| camelia | ("3.", "14", "15", "92", "92", "03", "53", "98", "23", "00", "88", "49", "55", "75", "22", "12", "38", "93", "80", "53", "09", "73", "45", "13", "27", "43", "36", "28", "31", "85", "84", "07", "07", "96", "46", "01", "76", "99", "11", "50", "44", "24"… | ||
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| notagoodidea | Hi all! I'm digging a little bit in perl6 grammars and binary data parsing after seeing a talk in fosdem and having to some nice chat with perl6 folks. I have found some old (~4yo) gist liking to Synopsis 05, I was asking myself is there a place that recap the state of current implementation vs the synopsis? (i'm looking for the :bytes from the new modifiers section of S05) | 22:54 | |
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| timotimo | notagoodidea: that's sadly not implemented at all so far | 23:01 | |
| rakudo-moar can currently only work with grammars on the grapheme level | |||
| which even in latin1 will be normalizing \r\n into a single grapheme | |||
| (because that's what the unicode folks have decided) | 23:02 | ||
| notagoodidea | timotimo: Someone linked a blog post doing that (buf -> latin1 -> grammar) in my SO question. Where can we find how/where the grapheme definition for perl6 is (the actual code) ? | 23:20 | |
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| timotimo | sorry, i was distracted for a while there | 23:30 | |
| oh no, they already left :< | 23:31 | ||
| i guess i'll post to StackOverflow then? | |||
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