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Date: Fri, 09 Jul 2021 11:10:05 -0400
From: Stanley Lieber <sl@stanleylieber.com>
To: 9front@9front.org
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Subject: Re: [9front] Re: commit 2f8a59f4b5bfe028c022855acc19666d69eed909
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On July 9, 2021 11:01:19 AM EDT, ori@eigenstate=2Eorg wrote:
>Quoth Stanley Lieber <sl@stanleylieber=2Ecom>:
>> On July 9, 2021 3:48:39 AM EDT, Anthony Martin <ality@pbrane=2Eorg> wro=
te:
>> >> rc: add subshell-function syntax
>> >>
>> >> fn foo @{bar} is now equivalent to
>> >> fn foo {@{bar}}=2E As a side effect,
>> >> this disallows creating functions
>> >> named after keywords without first
>> >> quoting them=2E
>> >
>> >Respectfully, this is just wrong=2E @ is a
>> >unary operator=2E Repurposing it to define
>> >a new special kind of function is a bit
>> >much=2E
>> >
>> >What does this buy you over being explicit
>> >at the call site?
>> >
>> >	fn foo { bar }
>> >
>> >	@foo
>> >
>> >One color of function is enough=2E What's
>> >next?
>> >
>> >	fn foo !{ bar }
>> >
>> >to mean that foo always negates the exit
>> >status of its body?
>> >
>> >The new quoting requirement for functions
>> >named after keywords seems fine, on the
>> >other hand=2E But is it worth the backwards
>> >incompatibility?
>> >
>> >Thanks,
>> >  Anthony
>> >
>>=20
>> if we're introducing breaking changes to important programs like the sh=
ell, can we please at least post a warning on the mailing list?
>
>(caveat -- it's compatible unless you
>happen to be using functions named '@',
>'`', etc -- which, again, you
>can't use without quoting=2E)
>
>I don't think most people even realize
>that it's possible to name an rc function:
>
>	'@{this is a valid} function name!'
>
>Either way, noted -- I'll post next time=2E
>
>

thanks=2E changes to rc are tricky since of all things we expect it to beh=
ave consistently from day to day=2E I do think I misunderstood the change i=
tself=2E I've been running sysupdate from cron and piping the output to an =
e-mail to myself -- the commit messages as printed by sysupdate are truncat=
ed=2E

sl