Camilo clsource

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

Using websockets to easily build GUIs for Python programs

I recently built a small agent-based model using Python and wanted to visualize the model in action. But as much as Python is an ideal tool for scientific computation (numpy, scipy, matplotlib), it's not as good for dynamic visualization (pygame?).

You know what's a very mature and flexible tool for drawing graphics? The DOM! For simple graphics you can use HTML and CSS; for more complicated stuff you can use Canvas, SVG, or WebGL. There are countless frameworks, libraries, and tutorials to help you draw exactly what you need. In my case, this was the animation I wanted:

(Each row represents a "worker" in my model, and each rectangle represents a "task.")

Using PGP signatures with bitcoin script OP_CHECKDATASIG

Dr. Mark B. Lundeberg, 2018 August 30 bitcoincash:qqy9myvyt7qffgye5a2mn2vn8ry95qm6asy40ptgx2

Since version 2.1, GnuPG is able to use the very same secp256k1 elliptic curve signature algorithm (ECDSA) as used in bitcoin. Quite soon Bitcoin Cash will add a new script opcode OP_CHECKDATASIG that is able to check signatures not just on the containing transaction, but also on arbitrary data. For fun, let's try to intersect the two signature systems and see what can be done!

Background

OP_CHECKDATASIG signatures

/app
├── /Application
|  ├── /Exceptions
|  ├── /Middlewares
|  ├── /Providers
|  ├── /Requests
├── /Domain
|  ├── /MyDomainA
| | ├── /Contracts

Document for the best design choices you can make for your software.

Terminology

DDD - [Domain Driven Design][ddd-wikipedia]
FF or FTF - Function First Design, or File-type First Design is structuring your application by it's function before the files such as a directory named components containing all component files.

File Structure

Structuring applications is hard, here are a few resources to help.

Animated Telegram Stickers

Anime Stickers for Telegram

Install the tools:

brew install ios-webkit-debug-proxy

Run the simulator. And choose an iOS 10 device. The chrome remote debugging doesn't work with iOS 11 yet.

Enable the inspector

Editing remote files in Vim with SSH

Configure SSH

In ~/.ssh/config, include the lines:
```
Host *
ControlPath ~/.ssh/sockets/%r@%h-%p
```

	# Generate tile files that can be used with https://www.marzipano.net
	# This is a config file for https://krpano.com/tools/kmakemultires/config/ -

	flash=false
	html=false
	xml=false

	panotype=autodetect

	tilesize=512

	// probability that the event with the passed probability will NOT occur
	function complement(p) {
	return 1 - p;
	}

	// probability that a and b will happen when neither outcome
	// is affected by the other (accepts 1 or more arguments)
	function intersectionOfIndependentEvents(a, b) {
	var ret = a;
	for (var i = 1; i < arguments.length; i++) {