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remove redundant check and minor cleanup

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Robby Findler 2013-03-20 19:42:48 -05:00
parent e0486a7cf0
commit 2792cd7b5f
1 changed files with 6 additions and 8 deletions
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14
collects/syntax-color/lexer-contract.rkt
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@ -23,10 +23,7 @@
[end (start type) (end/c start type)]
[backup exact-nonnegative-integer?]
[new-mode any/c])))
#:tester (λ (lexer) (and (procedure? lexer)
(or (procedure-arity-includes? lexer 1)
(procedure-arity-includes? lexer 3))
(try-some-random-streams lexer)))))
#:tester (λ (lexer) (try-some-random-streams lexer))))
(define (try-some-random-streams lexer)
(define 3ary-lexer
@ -38,8 +35,6 @@
[else lexer]))
(for ([x (in-range 10)])
(define size (random 100))
(define (pick-one . args)
(list-ref args (random (length args))))
(define (quash-backslash-r c)
;; it isn't clear the spec is right in
;; the case of \r\n combinations, so we
@ -50,8 +45,11 @@
(λ (c)
(quash-backslash-r
(case (random 3)
[(0) (pick-one #\space #\) #\( #\@ #\{ #\} #\" #\λ #\Σ #\nul)]
[(1 2) (integer->char (random 255))])))))
[(0)
(define s " ()@{}\"λΣ\0")
(string-ref s (random (string-length s)))]
[(1 2)
(integer->char (random 255))])))))
(define in (open-input-string s))
(port-count-lines! in)
(let loop ([mode #f][offset 0])