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Creating!

Nathan Kleyn nathankleyn

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@tel
tel / ParserCombinators.hs
Created November 3, 2014 19:54
Monad transformers and parser combinators
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
module ParserCombinators where
{-
We'll build a set of parser combinators from scratch demonstrating how
they arise as a monad transformer stack. Actually, how they arise as a
choice between two different monad transformer stacks!

Creating a redis Module in 15 lines of code!

A quick guide to write a very very simple "ECHO" style module to redis and load it. It's not really useful of course, but the idea is to illustrate how little boilerplate it takes.

Step 1: open your favorite editor and write/paste the following code in a file called module.c

#include "redismodule.h"
/* ECHO <string> - Echo back a string sent from the client */
int EchoCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
@nl5887
nl5887 / transfer.fish
Last active March 22, 2022 09:07
Bash and zsh alias for transfer.sh. Transfers files and directories to transfer.sh.
function transfer
if test (count $argv) -eq 0
echo "No arguments specified. Usage:\necho transfer /tmp/test.md\ncat /tmp/test.md | transfer test.md"
return 1
end
## get temporarily filename, output is written to this file show progress can be showed
set tmpfile ( mktemp -t transferXXX )
## upload stdin or file

Turning Off Github Issues

My friend Michael Jackson turned off github issues on one of his smaller projects. It got me thinking...

Maintainers getting burned out is a problem. Not just for the users of a project but the mental health of the maintainer. It's a big deal for both parties. Consumers want great tools, maintainers want to create them, but maintainers don't want to be L1 tech support, that's why they

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Cross-browser kerning-pairs & ligatures</title>
<style>
body { font-family: sans-serif; background: #f4f3f3; color: rgba(40, 30, 0, 1); width: 500px; margin: 80px auto; padding: 0px; }
a { color: rgba(15, 10, 0, 0.8); text-decoration: none; border-bottom: 1px solid; padding: 1px 1px 0px; -webkit-transition: background 1s ease; }
a:hover { background: rgba(0, 220, 220, 0.2); }
p, li { line-height: 1.5; padding: 0em 1em 0em 0em; margin: 0em 0em 0.5em; }

Proposal for Improving Mass Assignment

For a while, I have felt that the following is the correct way to improve the mass assignment problem without increasing the burden on new users. Now that the problem with the Rails default has been brought up again, it's a good time to revisit it.

Sign Allowed Fields

When creating a form with form_for, include a signed token including all of the fields that were created at form creation time. Only these fields are allowed.

To allow new known fields to be added via JS, we could add:

@iansym
iansym / jsonview-solarized.css
Last active September 13, 2022 21:33
JSON View solarized theme for Chrome Extension
body {
background-color: #002b36;
color: #839496;
font-size: 14px;
white-space: pre !important;
font-family: "Source Code Pro", monospace;
}
.property {
font-weight: bold;
@phaedryx
phaedryx / summary
Last active December 3, 2022 19:27
Loyalty and Layoffs by David Brady
Original text here: https://whydavewhy.com/2013/08/16/loyalty-and-layoffs/
@Aatch
Aatch / borrow-example.rs
Last active July 5, 2023 04:22 — forked from kolmodin/rust-json.rs
An example and explanation of how to use lifetimes and borrowing to avoid copying, while maintaining safety.
extern mod extra;
use extra::json::*;
/*
* This function manages to do absolutely no copying, which is pretty cool.
*
* "What are all those `'r`s?" you ask. Well, they're liftime parameters. They
* indicate how long something lasts (before it's freed). They can't change how
* long something lives for, they only allow you to tell the compiler stuff it
@jamis
jamis / kruskals.rb
Created December 28, 2010 04:16
An implementation of Kruskal's algorithm for generating mazes.
# --------------------------------------------------------------------
# An implementation of Kruskal's algorithm for generating mazes.
# Fairly expensive, memory-wise, as it requires memory proportional
# to the size of the entire maze, and it's not the fastest of the
# algorithms (what with all the set and edge management is has to
# do). Also, the mazes it generates tend to have a lot of very short
# dead-ends, giving the maze a kind of "spiky" look.
# --------------------------------------------------------------------
# NOTE: the display routine used in this script requires a terminal
# that supports ANSI escape sequences. Windows users, sorry. :(