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Marco Fabbri mrfabbri

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@mrfabbri
mrfabbri / shadow-stream.rkt
Created Nov 3, 2014
Shadow stream in Racket
View shadow-stream.rkt
;; Returns a stream that shadows side-effects of the original stream
;; when accessed after the first time
(define (shadow-stream s)
(let ([shadow-next #f])
(thunk (begin
(when (not shadow-next)
(let ([next (s)])
(set! shadow-next (cons (car next) (shadow-stream (cdr next))))))
(cons (car shadow-next) (cdr shadow-next))))))
@mrfabbri
mrfabbri / streams-interleave.rkt
Last active Aug 29, 2015
Interleaving streams in Racket
View streams-interleave.rkt
#lang racket
;; produce a new stream with the elements of the given streams interleaved
(define (streams-interleave . streams)
(letrec ([loop (lambda (streams)
(let ([next ((car streams))])
(cons (car next)
(thunk (loop (append (cdr streams) (list (cdr next))))))))])
(thunk (loop streams))))
@mrfabbri
mrfabbri / record-droid-screencast.sh
Created Oct 5, 2014
Starts and stops screen and audio (Mac) recording of an android attached device via adb
View record-droid-screencast.sh
#!/bin/sh
function stop_record() {
echo
echo "stopping audio recording"
cat << EOF | osascript -l AppleScript
tell application "Quicktime Player"
stop last item of (documents whose name contains "Audio Recording")
end tell
EOF
View keybase.md

Keybase proof

I hereby claim:

  • I am mrfabbri on github.
  • I am mrfabbri (https://keybase.io/mrfabbri) on keybase.
  • I have a public key whose fingerprint is 429D DE03 5870 DBDA 08DF FA36 D98A B29A 1271 2285

To claim this, I am signing this object:

View index.html
<html>
<head>
<script type="text/javascript">
var nw = require('nw.gui');
var win = nw.Window.get();
var nativeMenu = new nw.Menu({ type: 'menubar' });
if ('createMacBuiltin' in nativeMenu) {
nativeMenu.createMacBuiltin('node-webkit');
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