Ruben Laguna ecerulm

Z-Order curves are used to encode multiple dimensions to one dimension while maintaining locality. This feature makes them useful for indexing multidimensional data such as geospatial data. In BigTable-like systems (Accumulo, HBase, Cassandra a z-order curve index can translate a bounding box query to a single range scan. As this example shows, sometimes the locality properties of the curve are very good and few points outside the bounding box are scanned. Other times though, many points outside the bounding box are scanned if using a single range.

This example was inspired by Mike Bostock's Quadtree example

[Plover][] is an awesome open source stenography program, but to run the software [you need an NKRO keyboard][nkro]. The [ErgoDox keyboard][ergodox] can be made to run in NKRO mode by following these steps.

Install dependencies

These instructions are based on this document, which assumes you're using Windows. I'm using a mac, and I had to download and install the [CrossPack for AVR Development][crosspack] before the build process worked.

Download the source

The NKRO firmware and Plover keymap can be found in the simon_layout branch of @shayneholmes fork of tmk_keyboard. Get the source:

Semantic Highlighting in Neovim

What is Semantic Highlighting?
Default Highlighting
Using LspTokenUpdate for Complex Highlighting
- Highlighting Based on More Than One Modifier
Dealing with Ambiguity

	import asyncio
	import socket

	class UDPClient():

	def __init__(self, host, port, loop=None):
	self._loop = asyncio.get_event_loop() if loop is None else loop
	self._sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
	self._sock.setblocking(False)
	self._addr = (host, port)

	# Get IAM Role name from Instance Profile Id
	curl http://169.254.169.254/latest/meta-data/iam/info

	# Get credentials
	curl http://169.254.169.254/latest/meta-data/iam/security-credentials/<role-name>

	# More info
	http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html

	# will not work in all cases, see https://gist.github.com/angelo-v/e0208a18d455e2e6ea3c40ad637aac53#gistcomment-3439904

	function jwt-decode() {
	sed 's/\./\n/g' <<< $(cut -d. -f1,2 <<< $1) \| base64 --decode \| jq
	}

	JWT=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.TJVA95OrM7E2cBab30RMHrHDcEfxjoYZgeFONFh7HgQ

	jwt-decode $JWT