olooney

from PIL import Image

def average_image_color(filename):
	i = Image.open(filename)
	h = i.histogram()

	# split into red, green, blue
	r = h[0:256]
	g = h[256:256*2]
	b = h[256*2: 256*3]

sebfisch

Delimited Continuations

Delimited continuations manipulate the control flow of programs. Similar to control structures like conditionals or loops they allow to deviate from a sequential flow of control.

We use exception handling as another example for control flow manipulation and later show how to implement it using delimited continuations. Finally, we show that nondeterminism can also be expressed using delimited continuations.

Exception Handling

misaelnieto

#!/usr/bin/python
#based on the ideas from http://synack.me/blog/implementing-http-live-streaming
# Updates:
# - 2024-04-24: Apply suggestions from @Pin80
# Run this script and then launch the following pipeline:
# gst-launch videotestsrc pattern=ball ! video/x-raw-rgb, framerate=15/1, width=640, height=480 !  jpegenc ! multipartmux boundary=spionisto ! tcpclientsink port=9999
#updated command line
#gst-launch-1.0 videotestsrc pattern=ball ! videoconvert ! video/x-raw, framerate=15/1, width=640, height=480 !  jpegenc ! multipartmux boundary=spionisto ! #tcpclientsink port=9999

from multiprocessing import Queue

manuel

;; See http://okmij.org/ftp/continuations/implementations.html#dynamic-wind
;; and http://axisofeval.blogspot.com/2012/08/delimited-continuations-do-dynamic-wind.html

;; Slight trick here: use identity of yield-record-tag function as the actual tag
(define (yield-record-tag) yield-record-tag)
(define (make-yield-record v k)
  (list yield-record-tag v k))

;; Yield simply aborts up to the generator's caller, delivering to it
;; the yielded value and the continuation for resuming after the call

gre

#!/bin/bash

REMOTE=play@SERVER_IP
REMOTE_APP=/home/play/PROJECT_NAME/

sbt stage || exit 1;
rsync -va target/ $REMOTE:$REMOTE_APP/target;
ssh $REMOTE "cd $REMOTE_APP; ./stop.sh";
ssh $REMOTE "cd $REMOTE_APP; ./start.sh";

kylemanna

pi@rpi0 ~ $ sudo apt-get purge wolfram-engine                                                                                                                                   
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  wolfram-engine*
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 454 MB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 77272 files and directories currently installed.)

smhanov

#!/usr/bin/python3
# By Steve Hanov, 2011. Released to the public domain.
# Please see http://stevehanov.ca/blog/index.php?id=115 for the accompanying article.
#
# Based on Daciuk, Jan, et al. "Incremental construction of minimal acyclic finite-state automata." 
# Computational linguistics 26.1 (2000): 3-16.
#
# Updated 2014 to use DAWG as a mapping; see 
# Kowaltowski, T.; CL. Lucchesi (1993), "Applications of finite automata representing large vocabularies", 
# Software-Practice and Experience 1993

johantiden

public static void main(String[] args) throws IOException {

            byte[] bytes = Files.readAllBytes(new File("distortedmesh.msh").toPath());
            ByteBuffer byteBuffer = ByteBuffer.wrap(bytes);

            byteBuffer.position(64);
            byteBuffer.order(ByteOrder.LITTLE_ENDIAN);

            int HEIGHT = 8;
            int WIDTH = 8;