I construct a hash-table like this:
((char "a") "a: choiceA" (+ 0 101))
((char "b") "b: choiceB" (+ 0 102))
))
In this example, I want the first element of each sublist to be evaluated while other elements not. That is to say, (char "a") should be 97, (char "b") should be 98.
Or, in common, how to partially evaluate elements in a hash-table? Is there an easy to achieve this?
Try this:
;-> (97 98)
Sorry, I didn't make my question clear.
What I want is not the result of each first element evaluation. I want to get a easy way to construct "mytable" from
to
Maybe this:
;-> (((+ 6 2) (a) 2) ((- 2 5) (b) 5))
(dolist (el a)
(setf (first (a $idx)) (eval (first el)))
)
a
;-> ((8 (a) 2) (-3 (b) 5))
Yet, is there a better way to evaluate elements in hash-table when constructing hash-table, as like the comma expression in common lisp?
This can be one way of doing it. The