ToddAndMargo wrote: > my Proc $p = run( |@args, :err, :out ); > > What are the values with the ":" in front of them > officially called? I take it "thingies with the > colon in front of them" does not cut it.
They're colon-pairs, though you'll also see them called "adverbs" depending on context. You could call them adverbs here-- they're flags that turn on different behavior for the output. https://docs.raku.org/routine/run If you want to capture standard output or error instead of having it printed directly you can use the :out or :err arguments, which will make them available using their respective methods: Proc.out and Proc.err. my $proc = run 'echo', 'Raku is Great!', :out, :err; $proc.out.slurp(:close).say; # OUTPUT: «Raku is Great!» $proc.err.slurp(:close).say; # OUTPUT: «» You could see a construct like that used with an argument though, in which case it's an "adverbial pair": https://docs.raku.org/syntax/Adverbial%20Pair Adverbs get used a lot with regular expressions, where the syntax is different: https://docs.raku.org/syntax/Regex%20adverbs
