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freespectrum.herokuapp.com/workshop...-links.svg -- gist.github.com/masak/5431185 -- logs at olive.undo.it/log?channel=masakism Set by moderator on 14 May 2013. |
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| lizmat | good * from Austin, TX, #perl6! | 01:53 | |
| oops, ww | |||
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| moderator | freespectrum.herokuapp.com/workshop...-links.svg -- gist.github.com/masak/5431185 -- logs at olive.undo.it/log?channel=masakism | ||
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| Teratogen | is Perl 6 turning into an academic language? | 17:26 | |
| masak | no. | ||
| Teratogen | How no? | 17:27 | |
| masak suggests this is a topic for #perl6, not #masakism | |||
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| Teratogen | oh when we have masakism we will be talking about it =D | 17:37 | |
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| moderator | freespectrum.herokuapp.com/workshop...-links.svg -- gist.github.com/masak/5431185 -- logs at olive.undo.it/log?channel=masakism | ||
| Teratogen | I have a lot of questions about perl 6 that I will ask during the next masakism! | 17:46 | |
| masak | feel free. | 17:49 | |
| maybe make a list beforehand? :) | 17:50 | ||
| Teratogen | is perl 6 a functional programming language, because those never make it into the mainstream | 17:56 | |
| !!! | |||
| so I will have questions about functional programming, of course | 17:57 | ||
| will we be learning about perl 5 too? | 18:00 | ||
| masak | yes. see gist.github.com/masak/5431185 (a description of the thing we did on May 1) | 18:02 | |
| in general, see /topic | |||
| Teratogen | I am going to crash this party! | 18:03 | |
| =) | |||
| I promise to be quiet and listen =( | 18:04 | ||
| that will be no fun though =( | |||
| I am pretty much a loose cannon =) | |||
| for example, most C compilers are written in C | 18:07 | ||
| can you write Perl 6 in Perl 6? | |||
| masak | Teratogen: asking lots of questions and generally making (productive) noise wouldn't be to "crash this party", it would be the intended mode of interaction. | 18:09 | |
| Teratogen | ok =) | 18:10 | |
| masak | Teratogen: much or Rakudo Perl 6 is indeed implemented in Perl 6 already. | ||
| Teratogen | you gotta leave something for Parrot! | ||
| masak | another significant part is implemented in NQP (Not Quite Perl), a small subset of Perl 6. | ||
| well, yes, at some point Rakudo bottoms out in Parrot, of course. | 18:11 | ||
| (or the JVM, or...) | |||
| Teratogen | why are the multi subroutines when an if statement inside the subroutine would do just as well? | 18:21 | |
| (I'm looking at code examples on wikipedia) | 18:24 | ||
| masak | several reasons. | 18:26 | |
| the most important being, perhaps, that not all the multis need be yours. | |||
| note that you can mix in your own multis with language-provided multis. | |||
| it's an open system. | |||
| Teratogen | cool! | 18:27 | |
| masak | two other important, related reasons: scoping. a multi in a small scope can go out of scope. | ||
| and type narrowness. while it's *strictly* true that you can emulate it all with if statements, it's a whole lot of work, and the multi/signature syntax essentially becomes a declarative language which is very nice to work with. | 18:28 | ||
| see the Rock/Paper/Scissors example, for example. | |||
| I don't remember if it's on Wikipedia. it's in the book PDF. | |||
| Teratogen | also, I like the simplicity of C's text preprocessor | 19:18 | |
| Perl 6's is a macro preprocessor too, but it's more complicated | 19:19 | ||
| GlitchMr | Well, Perl 6 has textual macros. | 19:32 | |
| However, these are prone to easily break, just like macros in C. | |||
| Teratogen | it that a separate processing step? | 19:33 | |
| Perl 6 macro processing, that is | |||
| GlitchMr | More like, compiler sees token and replaces it. | 19:35 | |
| Macros have to be declared before their use. | |||
| It isn't separate processing step. | 19:36 | ||
| Teratogen | ah | ||
| masak | right. macros in Perl 6 are "parser plug-ins", whether they're textual or ASTic. | 19:38 | |
| GlitchMr | For example, textual macro. | ||
| r: macro addem($a, $b) { "$a + $b" }; say addem(1, 2) * 3; | |||
| camelia | rakudo cd5ca7: OUTPUT«===SORRY!===too few positional arguments: 2 passed, 3 (or more) expected» | ||
| GlitchMr | wait, what? | 19:39 | |
| Teratogen | that doesn't make sense | ||
| GlitchMr | Uhmmm, why it failed. | ||
| Is it yet another Rakudo bug? | |||
| Anyway, see perl6advent.wordpress.com/2012/12/...23-macros/ | 19:40 | ||
| Teratogen | macro addem($a, $b) { "$a" }; say addem(1, 2) * 3; | 19:41 | |
| r: macro addem($a, $b) { "$a" }; say addem(1, 2) * 3; | |||
| camelia | rakudo cd5ca7: OUTPUT«===SORRY!===too few positional arguments: 2 passed, 3 (or more) expected» | ||
| GlitchMr | r: macro addem($a) { "$a" }; say addem(1) * 3; | ||
| camelia | rakudo cd5ca7: OUTPUT«===SORRY!===too few positional arguments: 2 passed, 3 (or more) expected» | ||
| Teratogen | r: macro addem($a) { "$a" }; say addem(1, 2) * 3; | ||
| camelia | rakudo cd5ca7: OUTPUT«[31m===[0mSORRY