mac name args [body ...]
Creates a macro.
>(mac mymac (a b) (+ a b))
#(tagged mac #<procedure: mymac>)
macex macro
Expands a macro.
>(macex '(let a 1 (pr a)))
((fn (a) (pr a)) 1)
macex1 macro
Expands a macro to one level.
>(macex1 '(let a 1 (pr a)))
(with (a 1) (pr a))
uniq
Generates a unique symbol.
>(uniq)
gs2140
w/uniq names [body ...]
Assigns a unique symbol to each name in
names and executes body. names can either be a single symbol or a list of symbols.>(w/uniq (a b c) (prn a b c)) gs2141gs2142gs2143 gs2141
quasiquote arg
The backquote
` is shorthand for quasiquote, e.g. `(+ 1 2) is the same as (quasiquote (1 2)). Inside quasiquote, the unquote
operator will cause the contents to be evaluated instead of quoated. The
unquote-splicing operator will cause contents to be evaluated and spliced
into the result. , is shorthand for unquote, and ,@ is shorthand for
unquote-splicing.
>`((+ 1 2) ,(+ 3 4) ,@(list 5 6))
((+ 1 2) 7 5 6)
quote arg
The single quote ' is shorthand for quote, e.g. 'x is the same as (quote x)
>'(1 2 3)
(1 2 3)