onlurking

Programming as Theory Building

Peter Naur

Peter Naur's classic 1985 essay "Programming as Theory Building" argues that a program is not its source code. A program is a shared mental construct (he uses the word theory) that lives in the minds of the people who work on it. If you lose the people, you lose the program. The code is merely a written representation of the program, and it's lossy, so you can't reconstruct

sundowndev

Google dork cheatsheet

Search filters

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allinurl	Searches for a URL matching all the keywords in the query.	allinurl:"keyword"
intitle	Searches for occurrences of keywords in title all or one.	intitle:"keyword"

luismts

Git Commit Best Practices

Basic Rules

Commit Related Changes

A commit should be a wrapper for related changes. For example, fixing two different bugs should produce two separate commits. Small commits make it easier for other developers to understand the changes and roll them back if something went wrong. With tools like the staging area and the ability to stage only parts of a file, Git makes it easy to create very granular commits.

Commit Often

Committing often keeps your commits small and, again, helps you commit only related changes. Moreover, it allows you to share your code more frequently with others. That way it‘s easier for everyone to integrate changes regularly and avoid having merge conflicts. Having large commits and sharing them infrequently, in contrast, makes it hard to solve conflicts.

arrieta

// A simple Lexer meant to demonstrate a few theoretical concepts. It can
// support several parser concepts and is very fast (though speed is not its
// design goal).
//
// J. Arrieta, Nabla Zero Labs
//
// This code is released under the MIT License.
//
// Copyright 2018 Nabla Zero Labs
//

nadavrot

High-Performance Matrix Multiplication

This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).

Intro

Matrix multiplication is a mathematical operation that defines the product of

DasWolke

Microservice Bots

What they are and why you should use them

Introduction

Recently more and more chatbots appear, the overall chatbot market grows and the platform for it grows as well. Today we are taking a close look at what benefits creating a microservice chatbot on Discord - (a communication platform mainly targeted at gamers) would provide.

The concepts and ideas explained in this whitepaper are geared towards bots with a bigger userbase where the limits of a usual bot style appear with a greater effect

Information about Discord itself

(If you are already proficient with the Discord API and the way a normal bot works, you may skip ahead to The Concept)

averagesecurityguy

#!/usr/bin/env python3
# This script is designed to do one thing and one thing only. It will find each
# of the FlateDecode streams in a PDF document using a regular expression,
# unzip them, and print out the unzipped data. You can do the same in any
# programming language you choose.
#
# This is NOT a generic PDF decoder, if you need a generic PDF decoder, please
# take a look at pdf-parser by Didier Stevens, which is included in Kali linux.
# https://tools.kali.org/forensics/pdf-parser.
#