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Re: What is syntax lifting?

  • From: John Cowan <johnwcowan@gmail.com>
  • To: Dimitre Novatchev <dnovatchev@gmail.com>
  • Date: Wed, 4 Sep 2019 12:57:20 -0400

Re:  What is syntax lifting?
But map and friends are *procedural* (functional) lifting.  Syntactic lifting, as far as I know, exists only in languages with syntactic abstraction (macros).  My grasp of macros beyond C, defmacro, and syntax-rules isn't particularly good, though.

On Wed, Sep 4, 2019 at 12:48 PM Dimitre Novatchev <dnovatchev@gmail.com> wrote:
And something more understandable ...

"In languages which support first-class functionsmap may be partially applied to lift a function that works on only one value to an element-wise equivalent that works on an entire container; for example, 
map square 

is a Haskell function which squares each element of a list."


On Wed, Sep 4, 2019 at 9:40 AM Dimitre Novatchev <dnovatchev@gmail.com> wrote:

On Wed, Sep 4, 2019 at 9:27 AM Costello, Roger L. <costello@m...> wrote:
Hi Folks,

Recently I heard this term "syntax lifting" or sometimes just "lifting."

What do they mean?

/Roger

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