Hi Ralph,
Thanks for your answer.
The name 'attributes' was wrong, I meant 'arguments'. Sorry for that. I
was working on XML files and mixed up some terms.
I don't think you're supposed to be able to have extended identifiers
as named parameter/argument identifiers. They are meant for a few
specific scenarios where there's special value in having adverbs aka
pairs embedded in identifiers:
* Alternations in grammars. Typically of form `foo:sym<bar>`.
* Appending :api<>, :auth<>, :ver<> to package identifiers.
They *may* work in a couple of other scenarios but in general,
don't do that.
By the way, "attributes" has a specific meaning in Raku, namely the
fields of object instances.
Regards,
Marcel
--
love, raiph
On Wed, Aug 26, 2020 at 1:31 PM Marcel Timmerman <mt1...@gmail.com
<mailto:mt1...@gmail.com>> wrote:
Hi everyone,
I was experimenting with extended identifiers and found that it is
not possible to use it in named attributes. E.g.
> sub a (:$x:y) { say $x:y; }
===SORRY!=== Error while compiling:
Unsupported use of y///. In Raku please use: tr///.
------> sub a (:$x:y⏏) { say $x:y; }
> sub a (:$abc:def) { say $abc:def; }
===SORRY!=== Error while compiling:
Invalid typename 'def' in parameter declaration.
------> sub a (:$abc:def⏏) { say $abc:def; }
Is there a trick of some sort to get this done? At the moment I
can only use a slurpy hash and check for its keys. This is good
enough for me but out of curiosity I ask. If not possible, an
extra note in the documentation on named arguments would be necessary.
regards,
Marcel
