[Haskell-cafe] Comment Syntax

[Guy]

On 03/06/2011 12:26, Ivan Lazar Miljenovic wrote:
> On 3 June 2011 19:19, Guy<guytsalmaves-h at yahoo.com>  wrote:
>> On 03/06/2011 12:01, Malcolm Wallace wrote:
>>>
>>> I believe the motivating example that persuaded the Language Committee to
>>> allow these symbols was
>>>       -->
>>> which is not of course used anywhere in the standard libraries, but is an
>>> extremely nice symbol to have available in user code.
>>
>> Seeing as no library actually defines such a symbol, is it worth forcing an
>> extra space into comments? --| and --^ would be an extremely nice symbols
>> for haddock comments.
>
> We already have to forms of comments: -- and {- -}; why do we need another two?
>
> Think of it this way: the "--" defines the comment, and then we use
> the "|" or "^" to indicate to _haddock_ to interpret this differently.
>   I don't think we need to special-case symbols starting with "--" just
> to avoid having to put a space in to delimit the comment indicator and
> the markup indicator.

I wasn't proposing additional comment symbols; I'm proposing that anything beginning with -- is a comment.