From: Jason Roelofs <jameskilton@...>
Date: 2009-02-26T03:06:48+09:00
Subject: Re: Nexus Programming Language

On Wed, Feb 25, 2009 at 12:44 PM, Brian Adkins <lojicdotcom@gmail.com> wrote:
> pjb@informatimago.com (Pascal J. Bourguignon) writes:
>
>> ...
>> Here is for example how I generate C++ code from Ruby:
>>
>>       (class MapType
>>          (def makeToStringExpression(fieldAccess , mandatory , inVector = false , encoding = nil)
>>             (if mandatory
>>                (e = fieldAccess)
>>                (ib = [["." , e , :begin]])
>>                (ie = [["." , e , :end]])
>>              else
>>                (e = [[ "." , fieldAccess , :getValuePtr]])
>>                (ib = [["->" , e , :begin]])
>>                (ie = [["->" , e , :end]])
>>              end)
>>             (k = (@keyType     . makeToStringExpression(["->" , :i , :first]  , true , encoding)))
>>             (v = (@elementType . makeToStringExpression(["->" , :i , :second] , true , encoding)))
>>             (s = [:block ,
>>                   [:inline , "typedef " + (self . cxxPath) + " map_type;"] ,
>>                   (Cxx::Variable . new(:i , (Cxx::Type . new((self . cxxPath)+"::"+"const_iterator")) , ib)) ,
>>                   (Cxx::Variable . new(:e , (Cxx::Type . new((self . cxxPath)+"::"+"const_iterator")) , ie)) ,
>>                   [ "<<" , :s , " (map"] ,
>>                     [:for , [ nil , ["!=" , :i , :e],["post++",:i]] ,
>>                       [:block , ["<<", :s , " ("] , k , ["<<", :s , " . "] , v , ["<<", :s , ")"]]] ,
>>                    [ "<<" , :s , ")"]])
>>           end)
>>        end)
>
> Pascal, I'm curious about your use of parentheses above. Do you use
> them because it makes some things easier in your editor, or to compare
> more directly with the Lisp example I elided, or simply to try and
> make your Ruby code look as much like Lisp as posisble, or ... ?
>
> --
> Brian Adkins
> http://lojic.com/
>
>

I think he was making a point to compare Ruby code with LISP code and
showing how similar it is at the core. At least, that's what I saw.

Jason