That's the way it used to be, and I agree it's more consistent.
Thomas Davie wrote:
I would like to suggest a different change to single line comment
syntax to do two things. First, address an inconsistency with multi
line comments, and secondly remove one of the main sources of confusion
for beginners.
My proposal is to make any text beginning '--' a comment (rather than
requiring a space after the two dashes. I appreciate that the argument
against this is that various operators that look like this are useful
(e.g. -->). However I think that any benefit gained by operators like
this is lost in confusion.
In order to back up my suggestion, I'd like to point out, that this is
indeed already how it is done for block comments. i.e. we do not
expect {-> to be an operator, we expect it to be the beginning of a
comment.
Secondly, from my limited experience helping to teach Haskell, the
comment syntax is a primary source of confusion for beginners.
Beginners inevitably forget (or don't know) to add the space, and will
receive confusing errors about undefined symbols, or type mismatches.
This is made yet more confusing by the fact that the compiler appears
to be pointing at an error in a comment.
Thanks
Tom Davie
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