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Author SHA1 Message Date
Matthew Butterick 70a3835502 start refac 5 years ago

@ -1,5 +0,0 @@
#lang info
(define collection 'multi)
(define version "0.3")
(define deps '("base"))
(define build-deps '("scribble-lib" "racket-doc" "rackunit-lib"))

@ -0,0 +1,4 @@
#lang info
(define collection 'multi)
(define version "0.3")
(define deps '(["base" #:version "6.3"]))

@ -0,0 +1,4 @@
#lang info
(define collection 'multi)
(define version "0.3")
(define deps '(["base" #:version "6.3"]))

@ -1,7 +1,7 @@
#lang racket/base
(require (for-syntax
racket/base
"private/syntax-utils.rkt")
sugar/private/syntax-utils)
"define.rkt")
(define+provide+safe (make-caching-proc base-proc)

@ -1,7 +1,7 @@
#lang racket/base
(require racket/string
(for-syntax racket/base)
"define.rkt")
sugar/define)
(provide+safe report report/time time-name
report/line report/file

@ -0,0 +1,4 @@
#lang info
(define collection 'multi)
(define version "0.3")
(define deps '(["base" #:version "6.3"] "sugar-define"))

@ -1,13 +1,9 @@
#lang racket/base
(require (for-syntax
racket/base)
(require (for-syntax racket/base)
racket/list
racket/match
racket/function
"define.rkt")
(define (increasing-nonnegative-list? x)
(and (list? x) (or (empty? x) (apply < -1 x))))
sugar/define)
(define+provide+safe (trimf xs test-proc)
(list? procedure? . -> . list?)
@ -109,18 +105,22 @@
(hash-update! counter item add1 0))
counter)
(define (->list x)
(match x
[(? list? x) x]
[(? vector?) (vector->list x)]
[(? string?) (string->list x)]
[else (raise-argument-error '->list "item that can be converted to list" x)]))
(define+provide+safe (->list xs)
(sequence? . -> . list?)
(unless (sequence? xs)
(raise-argument-error '->list "sequence" xs))
(match xs
[(? list?) xs]
[(? vector?) (vector->list xs)]
[(? string?) (string->list xs)]
[seq (for/list ([x seq]) x)]))
(define+provide+safe (members-unique? x)
((or/c list? vector? string?) . -> . boolean?)
(match (->list x)
[(? list? x) (= (length (remove-duplicates x)) (length x))]
[_ (raise-argument-error 'members-unique? "list, vector, or string" x)]))
(sequence? . -> . boolean?)
(unless (sequence? x)
(raise-argument-error 'members-unique? "sequence" x))
(define all-unique-signal (gensym))
(eq? (check-duplicates (->list x) #:default all-unique-signal) all-unique-signal))
(define+provide+safe (members-unique?/error x)
((or/c list? vector? string?) . -> . boolean?)
@ -138,23 +138,30 @@
(syntax-case stx ()
[(_ VALUES-EXPR) #'(call-with-values (λ () VALUES-EXPR) list)]))
(define+provide+safe (sublist xs i j)
(list? exact-nonnegative-integer? exact-nonnegative-integer? . -> . list?)
(unless (list? xs)
(raise-argument-error 'sublist "list?" xs))
(cond
[(> j (length xs)) (error 'sublist (format "ending index ~a exceeds length of list" j))]
[(>= j i) (for/list ([(x idx) (in-indexed xs)]
#:when (<= i idx (sub1 j)))
x)]
[else (raise-argument-error 'sublist (format "starting index larger than ending index" (list i j)))]))
(define+provide+safe (sublist seq i j)
(sequence? exact-nonnegative-integer? exact-nonnegative-integer? . -> . list?)
(unless (sequence? seq)
(raise-argument-error 'sublist "sequence?" seq))
(define xs (->list seq))
(when (> j (length xs))
(raise-argument-error 'sublist (format "ending index ~a exceeds length of list" j)))
(when (> i j)
(raise-argument-error 'sublist (format "starting index larger than ending index" (list i j))))
(for/list ([(x idx) (in-indexed xs)]
#:when (<= i idx (sub1 j)))
x))
(define (increasing-nonnegative-list? x)
(or (empty? x) (and (list? x) (apply < -1 x))))
(define+provide+safe (break-at xs bps-in)
(list? any/c . -> . (listof list?))
(unless (list? xs)
(raise-argument-error 'break-at "list" xs))
(define bps ((if (list? bps-in) values list) bps-in))
(when (ormap (λ (bp) (<= (length xs) bp)) bps)
(when (let ([lenxs (length xs)])
(for/or ([bp bps])
(<= lenxs bp)))
(raise-argument-error 'break-at
(format "breakpoints not greater than or equal to input list length = ~a" (length xs)) bps))
(unless (increasing-nonnegative-list? bps)
@ -175,16 +182,16 @@
(modulo (abs how-far) (length xs))
(abs how-far)))
(define (make-fill thing) (if cycle thing (make-list abs-how-far fill-item)))
(cond
[(> abs-how-far (length xs))
(raise-argument-error caller
(format "index not larger than list length ~a" (length xs))
(* (if (eq? caller 'shift-left) -1 1) how-far))]
[(zero? how-far) xs]
[(positive? how-far)
(when (> abs-how-far (length xs))
(raise-argument-error caller
(format "index not larger than list length ~a" (length xs))
(* (if (eq? caller 'shift-left) -1 1) how-far)))
(match how-far
[0 xs]
[(? positive?)
(match/values (split-at-right xs abs-how-far)
[(head tail) (append (make-fill tail) head)])]
[else ; how-far is negative
[_ ; how-far is negative
(match/values (split-at xs abs-how-far)
[(head tail) (append tail (make-fill head))])]))

@ -0,0 +1,4 @@
#lang info
(define collection 'multi)
(define version "0.3")
(define deps '(["base" #:version "6.3"]))
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