[erlang-questions] eep-0012 (Extensions to comprehensions)
Richard A. O'Keefe
Fri Aug 8 05:42:10 CEST 2008
On 8 Aug 2008, at 2:08 pm, Darren New wrote:
>> Why will "many" people be bothered about this in Erlang,
>> when they apparently aren't bothered by it in C or Java
> What makes you think they're not? That they're not posting their
> complaints about Java on an Erlang mailing list?
This is hardly the only mailing list I am on.
I was part of the comp.std.c community for many years.
Amongst all the issues raised, this never turned up.
>> Why is the "add one thing -> diff should be one line"
>> idea so important for changes to data constructors but
>> ONLY data constructors?
> Because data constructors often stand alone with no further change
> needed (if you're doing data-driven programming), while changes to
> method declarations require changes to all the callers as well?
But let's remind ourselves what we are talking about.
If people write
Files = [
then there is an issue which allowing trailing commas
would solve. If, on the other hand, they write
Files = [
then trailing commas are not going to help. I count
about 5000 lines beginning with ] or } in the Erlang
sources; about one every 110 lines. "C-like" rather
than "Lisp-like" seems to be a common convention for
records and -record declarations.
You haven't persuaded me, but those numbers have.
Erlang/OTP sources => people DO have lots of stuff
where trailing commas would be sensible.
Python => it doesn't spoil a nice language much to
Write an EEP and get it on record then.
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