Alastair writes:
> > According to the Haskell98 report, section 2.3:
> > `For example, "-->" or "--|" do not begin a comment.'
>
> I hope it will be a long time because fixing this bug will break my
> habit of separating major pieces of code with "comments" like:
>
> ----------------------------------------------------------------
> -- Parser
> ----------------------------------------------------------------
Fortunately, Haskell 98 explicitly allows this style of comment,
so nothing will break for you! You can also have
--Parser
--(Parser)
--"Parser"
--]Parser[
and those are all still comments as well.
[ The rule is that any lexeme consisting of a sequence of symbol chars
is acceptable as a varsym, provided it doesn't consist solely of
two-or-more dashes (in which case it begins a comment). An important
point to note is that a lexeme starting with a symbol char must contain
only symbol chars, and is terminated by the first non-symbol char.
For lexing purposes, the available symbol chars are
! # $ % & * + . / < = > ? @ \ ^ | ~ : -
plus any Unicode symbols or punctuation. The following characters are
"special"s, not symbols
( ) , [ ] { } ; " ' `
]
Regards,
Malcolm
