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(define-module (language python module python)
#:use-module (oop goops)
#:use-module (ice-9 match)
#:use-module (ice-9 readline)
#:use-module ((oop pf-objects) #:select
(<p> <property> class-method static-method refq
py-super-mac))
#:use-module (language python exceptions )
#:use-module (language python def )
#:use-module (language python for )
#:use-module (language python try )
#:use-module (language python yield )
#:use-module (language python list )
#:use-module (language python dict )
#:use-module (language python set )
#:use-module (language python compile )
#:use-module (language python string )
#:use-module (language python bytes )
#:use-module (language python set )
#:use-module (language python number )
#:use-module (language python dir )
#:use-module (language python hash )
#:use-module (language python property )
#:use-module (language python range )
#:use-module (language python tuple )
#:replace (list abs min max hash round)
#:re-export (Exception StopIteration send sendException next
GeneratorExit sendClose RuntimeError
len dir next dict None property range
tuple bytes bytearray
)
#:export (print repr complex float int
set all any bin callable reversed
chr classmethod staticmethod
divmod enumerate filter format
getattr hasattr hex isinstance
iter map sum id input oct ord pow super
sorted zip))
(define-syntax-rule (aif it p x y) (let ((it p)) (if it x y)))
(define print
(case-lambda
(() (format #t "~%"))
((x) (format #t "~s~%" x))
(l (format #t "~s~%" l))))
(define (repr x) (format #f "~a" x))
(define abs py-abs)
(define string pystring)
(define complex py-complex)
(define float py-float)
(define int py-int)
(define round py-round)
(define set py-set)
(define all py-all)
(define any py-any)
(define bin py-bin)
(define divmod py-divmod)
(define format py-format)
(define hash py-hash)
(define hex py-hex)
(define-method (callable x ) #f)
(define-method (callable (x <procedure> )) #t)
(define-method (callable (x <procedure-class> )) #t)
(define-method (callable (x <applicable> )) #t)
(define-method (callable (x <primitive-generic>)) #t)
(define-method (callable (x <p>))
(refq x '__call__))
(define chr integer->char)
(define classmethod class-method)
(define staticmethod static-method)
(define (enumerate l)
(make-generator enumerate
(lambda (yield)
(for ((x : l)) ((i 0))
(yield i x)
(+ i 1)))))
(define (filter f l)
(make-generator enumerate
(lambda (yield)
(for ((x : l)) ()
(if (f x)
(yield x))))))
(define miss ((@ (guile) list) 'miss))
(define* (getattr a b #:optional (k miss))
(let ((r (refq a (symbol->string b) k)))
(if (eq? r miss)
(raise AttributeError "object/class ~a is missing attribute ~a" a b)
r)))
(define (hasattr a b)
(let ((r (refq a (symbol->string b) miss)))
(not (eq? r miss))))
(define (isinstance o cl)
(if (pair? cl)
(or
(isinstance o (car cl))
(isinstance o (cdr cl)))
(is-a? o cl)))
(define iter
(case-lambda
((o) (aif it (wrap-in o)
it
(aif get (refq o '__getitem__)
(make-generator iter
(lambda (yield)
(for () ((i 0))
(yield (get i))
(+ i 1))))
(raise TypeError "not iterable" o))))
((f sent)
(make-generator iter
(lambda (yield)
(for () ()
(let ((r (f)))
(if (equal? r sent)
(break)
(yield r)))))))))
(define-syntax map
(lambda (x)
(syntax-case x ()
((map f a ...)
(with-syntax (((x ...) (generate-temporaries #'(a ...))))
#'(make-generator map
(lambda (yield)
(for ((x : a) ...) () (yield (f x ...))))))))))
(define* (sum i #:optional (start 0))
(for ((x : i)) ((s start))
(+ s x)
#:final
s))
(define (id x) (object-address x))
(define (input str)
(format #t str)
(readline))
(define (idx x) x)
(def (py-min (* l) (= key idx) (= default miss))
(let lp ((l l))
(match l
((it)
(for ((x : it)) ((s default) (b default))
(if (eq? s miss)
(values (key x) x)
(let ((k (key x)))
(if (< k s)
(values k x)
(values s b))))
#:final
(if (eq? b miss)
(raise ValueError "min does not work for zero length list")
b)))
(_ (lp ((@ (guile) list) l))))))
(def (py-max (* l) (= key idx) (= default miss))
(let lp ((l l))
(match l
((it)
(for ((x : it)) ((s default) (b default))
(if (eq? default miss)
(values (key x) x)
(let ((k (key x)))
(if (> k s)
(values k x)
(values s b))))
#:final
(if (eq? b miss)
(raise ValueError "min does not work for zero length list")
b)))
(_ (lp ((@ (guile) list) l))))))
(define (oct x) (+ "0o" (number->string (py-index x) 8)))
(define (ord x) (char->integer (string-ref (pylist-ref x 0) 0)))
(define pow
(case-lambda
((x y)
(expt x y))
((x y z)
(py-mod (expt x y) z))))
(define-syntax-rule (super . l) (py-super-mac . l))
(define min py-min)
(define max py-max)
(define list pylist)
(define reversed py-reversed)
(define (key-id x) x)
(define* (sorted it #:key (key key-id) (reverse #f))
(define l (to-pylist '()))
(for ((x : it)) () (pylist-append! l x))
(pylist-sort! l #:key key #:reverse reverse)
l)
(define (zip . l)
(let ((l ((@ (guile) map) wrap-in l)))
((make-generator ()
(lambda (yield)
(let lp ()
(let lp2 ((l l) (r '()))
(if (pair? l)
(call-with-values (lambda () (next (car l)))
(lambda z
(lp2 (cdr l) (append (reverse z) r))))
(begin
(yield (reverse r))
(lp))))))))))
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