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~rhcarvalho/+junk/racket

25 by Rodolfo Carvalho
Add demos from racket-lang.org 
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#lang racket

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;; Finds Racket sources in all subdirs

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(for ([path (in-directory)])

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  (when (regexp-match? #rx"[.]rkt$" path)

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    (printf "source file: ~a\n" path)))