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Steven Shaw steshaw

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Loves programming languages
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@pesterhazy
pesterhazy / ripgrep-in-emacs.md
Last active July 19, 2024 16:05
Using ripgrep in Emacs using helm-ag (Spacemacs)

Why

Ripgrep is a fast search tool like grep. It's mostly a drop-in replacement for ag, also know as the Silver Searcher.

helm-ag is a fantastic package for Emacs that allows you to display search results in a buffer. You can also jump to locations of matches. Despite the name, helm-ag works with ripgrep (rg) as well as with ag.

How

@robinp
robinp / ghc-api-reuse.md
Last active April 2, 2018 10:42
Calling GHC API multiple times: choose your ExitFailure

GHC API lets you process Haskell sources, and (among other) specify code generation and linking level. For example:

  • (1) no codegen & no link
  • (2) bytecode generation & link in memory
  • (3) machine code generation & linking output binaries

For code analysis purposes, based on generating the typechecked AST, option (1) suffices most of the time. There are some situations in which it doesn't:

  • TemplateHaskell (TH) splice needs to execute code (at compile time) from an imported module: the imported module must be available in compiled form, so either (2) or (3) is needed. Example: in $([|$(foo)|]), foo will be evaluated at compile-time.
  • Code uses FFI imports. For this one would expect that (2) is needed (see checkCOrAsmOrLlvmOrInterp in TcForeign.hs), but actually unless it is used (say by TH, see below), even (1) works too (see the wrapper checkCg).
@jhwheeler
jhwheeler / language-learning-techniques.md
Last active March 13, 2025 10:13
Efficient and effective language learning techniques: Shadowing, Scriptorium, and Side-by-Side Reading.

Language Learning Techniques

Some of the techniques I've used to learn languages quickly and thoroughly:

  1. Shadowing

  2. Scriptorium

  3. Side-by-Side Reading

@mgoellnitz
mgoellnitz / snip.sh
Last active January 4, 2024 17:57
GitLab Snippet Command Line Tool
#!/bin/bash
#
# Copyright 2016-2021 Martin Goellnitz
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
@freckletonj
freckletonj / oauth.hs
Created April 27, 2017 21:06
Haskell Servant OAuth2.0 for GitHub
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE TypeOperators #-}
module Sand where
import Data.Aeson

Standardized Ladder of Functional Programming

The LambdaConf Ladder of Functional Programming (LOFP) is a standardized progression of different concepts and skills that developers must master on their journey to becoming expert-level functional programmers. LOFP can be used to rank workshops, talks, presentations, books, and courseware, so that aspiring functional programmers have a better understanding of what material is appropriate for them given their current experience.

Fire Keramik

Concepts

  • Immutable Data
  • Second-order Functions
@saurabhnanda
saurabhnanda / spacemacs.el
Created November 20, 2016 17:13
spacemacs file
;; -*- mode: emacs-lisp -*-
;; This file is loaded by Spacemacs at startup.
;; It must be stored in your home directory.
(defun dotspacemacs/layers ()
"Configuration Layers declaration.
You should not put any user code in this function besides modifying the variable
values."
(setq-default
;; Base distribution to use. This is a layer contained in the directory
@klingerf
klingerf / blue-green.groovy
Created November 4, 2016 03:10
Jenkins pipeline script to perform blue-green deploys to a Kubernetes cluster running linkerd and namerd
node {
def currentVersion = getCurrentVersion()
def newVersion = getNextVersion(currentVersion)
def frontendIp = kubectl("get svc l5d -o jsonpath=\"{.status.loadBalancer.ingress[0].ip}\"").trim()
def originalDst = getDst(getDtab())
stage("clone") {
git url: gitRepo + '.git', branch: gitBranch
}