[Haskell-cafe] Why is $ right associative instead of leftassociative?

Joseph H. Fasel III jhf at lanl.gov
Sat Feb 4 22:33:48 EST 2006

These lineages are more or less right, except that there is a bit of
incest: LML is certainly one of the progenitors of Haskell.  (more
semantically than syntactically, though)


ajb at spamcop.net said:
> G'day all.
> Quoting Paul Hudak <paul.hudak at yale.edu>:
>> Actually, one of the main reasons that we chose (:) is that that's what
>> Miranda used.  So, at the time at least, it was not entirely clear what
>> the "de facto universal inter-language standard" was.
> Exactly.  One point that's often not appreciated is that Haskell is not
> a descendent of ML.  The ML lineage is, roughly:
>     Lisp -> ISWIM -> ML -> SML, LML, O'Caml etc
> And the Haskell lineage is:
>     Lisp -> ISWIM -> SASL -> KRC -> Miranda -> Haskell
> ML is much more like an older cousin than an ancestor.
> This point is important because Turner languages already had a list
> syntax at the time that they adopted an ML-like type system.
> Cheers,
> Andrew Bromage
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Joseph H. Fasel, Ph.D.                  email: jhf at lanl.gov
Stockpile-Complex Modeling and Analysis phone: +1 505 667 7158
University of California                fax: +1 505 667 2960
Los Alamos National Laboratory          post: D-2 MS F609; Los Alamos, NM

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