Hi,
Garrett Mitchener wrote:
There's a weird idiom that I see all the time in Haskell code where
coders put commas at the beginning of lines:
data Thing = Thing {
x :: Int
,y :: Int
,z :: Int
,foo :: String
} ...
items = [
"red"
,"blue"
,"green"
]
(I don't think this is valid Haskell. The closing } and ] should be more
indented).
I like to put commas at the beginning of lines, because there, I can
make them line up and it is visually clear that they are all at the same
nesting level. I like how the commas look a bit like bullet points. For
example, I would write:
items =
[ "red"
, "blue"
, "green"
]
Could we extend Garett's proposal to also allow prefixing the first
element of a list with a comma, to support this style:
items = [
, "red"
, "blue"
, "green"
]
Allowing an optional extra comma both at the beginning and at the end
would allow programmers the choice where they want to put their commas.
Tillmann
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