Permitting trailing commas for record syntax ADT declarations

[Alexander Berntsen]

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On 24/09/14 08:50, Edward Kmett wrote:
> I'm personally of the "it should be a language extension like 
> everything else" mindset
Yeah, I'm going the Pragma route.

> If we limit it to record-like notions, and import/export lists,
> then we don't have to deal with conflicts with TupleSections and
> while it is inconsistent to have tuples behave differently, than
> other comma-separated lists, I'd really rather retain tuple
> sections, which I use somewhat heavily, than lose them to mindless
> uniformity over how we handle comma-separated lists.
I'm implementing it for things where I 100% subjectively feel it makes
sense. This does *not* include tuples, for the reason you mention.

When I get the time, I will make a Wiki page outlining what I'm changing
and my motivation for doing it. We can then have a discussion about
where to draw the line.


I need to figure out a more elegant solution than tweaking the parser
for each individual item. If someone knows their way around this code,
please talk to me on IRC/SIP/XMPP/whatever. Just email me for contact
info. I'll be busy today with a haskell workshop, but I plan on
spending the rest of the week on this business.
- -- 
Alexander
alexander at plaimi.net
https://secure.plaimi.net/~alexander
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