[Haskell-cafe] ";" in do

[Antoine Latter]

On Thu, Dec 30, 2010 at 8:15 AM, Henning Thielemann
<lemming at henning-thielemann.de> wrote:
>
> On Thu, 30 Dec 2010, Antoine Latter wrote:
>
>> I started for cleaner diffs and easier editing - I can add/remove a
>> line at the end without editing any other line. Eventually I grew to
>> like the look of it.
>
> That's not true. As long as the comma is used as separator one line can
> affect an adjacent one. If the comma is written on the end of a line, then
> removing the last line means altering the line before. If the comma is at
> front of a line, then removing the first line requires altering the second
> one.
>

By 'end' I meant 'last line' - I suppose a list does have two ends :-)

> Really different is only the usage of the comma as terminator. Actually this
> is possible in import and export statements, but not in constructor
> enumerations.
>
> http://www.haskell.org/haskellwiki/Terminator_vs._separator
>