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- From: Ed Watkeys <edw@poseur.com>
- To: Philly Lambda <philly-lambda@googlegroups.com>
- Subject: Re: Graham released Arc
- Date: Wed, 30 Jan 2008 07:07:06 -0800 (PST)
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Here's my cheatsheet so far. Written from a Schemer's perspective.
With R6RS, I'm looking for something else to fall in love with. PG
seems to have taken a step back from terseness-uber-alles and has come
up with something that's pretty nice.
; (DEF funcname (a ...) e ...)
; (FN (a ...) e ...)
; (IF c1 e1 c2 e2 ... e) -- replaces COND
; (WHEN c e1 e2 ...)
; (IS a b ...)
; (ISO a b ...)
; (LET x v e ...)
; (WITH (x a y b ...) e ...)
; (DO e ...)
; (= lval val)
; t, nil
; ("foo" 0) ==> #\0
; (LEN collection)
; (IN x a ...)
; (CASE val k1 v1 k2 v2 ... elsev)
; (FOR i lo hi e)
; (EACH x collection e)
; (WHILE c e e1 ...)
; (REPEAT n e)
; A C-like loop operator... In there somewhere...
; [ func _ arg ...] ==> (fn (x) (func x arg ...))
; foo:bar ==> (fn (a ...) (foo (bar a ...)))
; ~foo ==> (fn (a ...) (no (foo a ...)))
; KEEP filters, REM removes, ALL t if all t, SOME, POS first position
; where t, TRUES list of all t values. All work on strings. If func
arg
; is a value, treated as func that tests for equality with the
value.
; (table key) ==> value
; (LISTTAB '((k1 v1) (k2 v2) ...))
; MAPTABLE works by side effects, returns table.
; (ALREF alist key) ==> value
; (STRING v ...) ==> (for-each pr (list v ...))
; (TOSTRING v ...) ==> "..."
; (TYPE v) ==> type-of-v
; (ISA a type)
; (COERCE v type) ==> new-v (types: 'int <radix>, 'cons, ?)
; PUSH and POP treat list as stack, work w/ any lvalue.
; ++ and --
; (ZAP func x) ==> (= x (func x))
; (SORT cmp collection) -- COMPARE is standard comparator
; (INSORT cmp newval collection)
; (def func (a (o b)) ...) -- b is optional, nil if not given
; (def func (a (o b e) ...) -- b is optional, = to e if not given
; Rest params as in Scheme, APPLY as in Scheme.
; (MAC macname (a ...) e ...)
; Backquoting as in Scheme.
; (UNIQ) ==> unique identifier
; (W/UNIQ V e ...) -- V can be a symbol or a list of syms
;
; QUESTIONS: DEFTEM TEMLOAD SAVE-TABLE ERRSAFE TAG ENSURE-DIR
On Jan 29, 10:02 pm, "Kyle R. Burton" <kyle.bur...@gmail.com> wrote:
> http://arclanguage.org/
>
> I'm sure you'll all pick this up on p.r.c or n.yc at some point....
>
> Kyle
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