tweaks
parent
ebbdd403f5
commit
199540832a
@ -1,4 +1,4 @@
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#lang info
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#lang info
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(define collection "sugar")
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(define collection "sugar")
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(define scribblings '(("scribblings/sugar.scrbl" ())))
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(define scribblings '(("scribblings/sugar.scrbl" (multi-page))))
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(define deps '("describe"))
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(define deps '("describe"))
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@ -0,0 +1,15 @@
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#lang scribble/manual
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@(require scribble/eval (for-label racket sugar))
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@(define my-eval (make-base-eval))
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@(my-eval `(require sugar))
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@title{Len}
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@defmodule[sugar/len]
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@defproc[
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(len
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[x (or/c list? string? symbol? vector? hash? integer? set?)])
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integer?]
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Convert @racket[_x] to a length in the least surprising way possible, or raise an error if it can't be done.
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