Skip to content

Instantly share code, notes, and snippets.

@danoneata
danoneata / Sudoku.hs
Last active August 20, 2022 01:27
Applicative-based Sudoku solver
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
import Control.Applicative
import Data.Char
import Data.List (intersperse)
import Data.Monoid hiding (All, Any)
import Data.Foldable hiding (all, any)
import Prelude hiding (all, any)
  • Dynamic Dispatch
  • Dynamic Method
  • Ghost Methods
  • Dynamic Proxies
  • Blank Slate
  • Kernel Method
  • Flattening the Scope (aka Nested Lexical Scopes)
  • Context Probe
  • Class Eval (not really a 'spell' more just a demonstration of its usage)
  • Class Macros
@jdewit
jdewit / vim74_lua
Last active January 30, 2024 04:57
Installing vim 7.4 with lua on Ubuntu 12.04
sudo apt-get remove --purge vim vim-runtime vim-gnome vim-tiny vim-common vim-gui-common
sudo apt-get build-dep vim-gnome
sudo apt-get install liblua5.1-dev luajit libluajit-5.1 python-dev ruby-dev libperl-dev libncurses5-dev libgnome2-dev libgnomeui-dev libgtk2.0-dev libatk1.0-dev libbonoboui2-dev libcairo2-dev libx11-dev libxpm-dev libxt-dev
sudo rm -rf /usr/local/share/vim
sudo rm /usr/bin/vim
@zobar
zobar / writer.rb
Last active March 22, 2017 13:07
Writer monad in ruby
class Writer
def flat_map
self.class.new do
value, log = get
new_value, new_log = yield value
[new_value, log + new_log]
end
end
def map