On 7/20/12, David A. Wheeler <[email protected]> wrote:
>> Of course, the lack of true currying means that a slight variant like:
> . foo(bar(nitz quux(meow)))
> ...
>
> True, the operator is less helpful in this case. You could do this:
>
> . foo $$ bar nitz quux(meow)
>
Actually, the intent of SUBLIST is that the above can be written as:
foo $$ bar nitz $$ quux meow
First, consider the first $$:
EXPR1 = (foo)
EXPR2 = bar nitz $$ quux meow
Now EXPR2 needs to have its own $$ processed:
subEXPR1 = (bar nitz)
subEXPR2 = (quux meow)
append1(subEXPR1 subEXPR2) =
append(subEXPR1 list(subEXPR2)) =
append( '(bar nitz) list('(quux meow)) =
(bar nitz (quux meow))
EXPR2 = (bar nitz (quux meow))
append1(EXPR1 EXPR2) =
append(EXPR1 list(EXPR2)) =
append('(foo) list('(bar nitz (quux meow)))) =
'(foo (bar nitz (quux meow)))
.. which is the desired s-expression.
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