mneedham

data Position = Position Int Int Direction
	deriving (Show, Eq, Read)
data Direction = N | E | W | S
	deriving (Show, Eq, Enum, Bounded, Read)
data Command = L | R | M
	deriving (Show, Eq, Enum, Bounded, Read)

data DeltaPosition = DeltaPosition Int Int deriving (Show)

data State = State {

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

richieforeman

# Run this once
openssl genrsa -des3 -out ca.key 4096
openssl req -new -x509 -days 365 -key ca.key -out ca.crt

zinkkrysty

Use Dropbox for a git repository in the cloud. I use it for backup purposes.

It's important to use --bare to create a bare repo (without working copy) instead of a normal one, because git will complain about pushing to the working branch otherwise.

References:

• When creating a git repository that will be on the server, can I convert it to a bare repository?

biovisualize

1. Create a new public gist on https://gist.github.com/
2. Under "Clone this gist", copy the link (i.e., https://gist.github.com/4415518.git)
3. If you have the command line git tools, clone this gist to a local folder: git clone https://gist.github.com/4415518.git
4. It will add a folder with the gist id as a name (i.e., 4415518) under the current working directory. Navigate to this folder in the command line: cd 4415518 (dir 4415518 on windows)
5. Navigate to this folder in your file explorer and add an image (i.e., test.png)
6. Add it to git from the command line: git add test.png
7. Commit it to git: git commit -m "I just added a file!"
8. Push this commit to your remote gist (you will need your Github user name and password): git push
9. Go back and refresh your Gist on https://gist.github.com/ to confirm that it worked

sebfisch

{- 

A German blog post translating Java code for the build tool Ant to Scala

    http://funktionale-programmierung.de/2013/02/26/scala-java-ant.html

made me translate the Scala code to Haskell. I added combinators for binary
composition of mappers as well as a unit mapper for one of them. The code is
still shorter. I find the Haskell version more readable because expressions
and their types are separate rather than interleaved as in Scala.

jonschlinkert

Markdown cheatsheet

(Also see [remarkable][], the markdown parser created by the author of this cheatsheet)

Table of contents

• Standard features
  • Headings
  • Paragraphs

• Breaks

lfo

mvn clean install -Dmaven.surefire.debug=-Xdebug -Xnoagent -Djava.compiler=NONE  -Xrunjdwp:transport=dt_shmem,server=y,address=Maven,suspend=n

# In Netbeans Debug/attachDebugger with 
#   connector : SharedMemory
#   Name : Maven
#   Timeout : 10 000 

reiz

protected MavenProject buildProjectModel(ArtifactInfo artifactInfo) throws Exception {
    try {
        ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
        configuration.setLocalRepository( localRepository );
        configuration.setValidationLevel( ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL );
        configuration.setProcessPlugins( false );
        configuration.setRepositoryMerging( ProjectBuildingRequest.RepositoryMerging.REQUEST_DOMINANT );
        Properties properties = new Properties(  );
        for ( String key : session.getSystemProperties( ).keySet() ){
            properties.put( key, session.getSystemProperties().get(key) );

rgs

Falsehoods programmers believe about prices

1. You can store a price in a floating point variable.
2. All currencies are subdivided in 1/100th units (like US dollar/cents, euro/eurocents etc.).
3. All currencies are subdivided in decimal units (like dinar/fils)
4. All currencies currently in circulation are subdivided in decimal units. (to exclude shillings, pennies) (counter-example: MGA)
5. All currencies are subdivided. (counter-examples: KRW, COP, JPY... Or subdivisions can be deprecated.)
6. Prices can't have more precision than the smaller sub-unit of the currency. (e.g. gas prices)
7. For any currency you can have a price of 1. (ZWL)
8. Every country has its own currency. (EUR is the best example, but also Franc CFA, etc.)