mprymek

/*

Just a small weekend experiment...


First experimental implementation of the Langosh language ("plain", i.e. really minimal version).

Langosh is meant to be a language which:
 - can be easily machine-generated from Scratch-like visual programming tools (Blockly preferably)
 - interpreter is small enough to fit in a small MCU (ATMega328 preferably)

mprymek

/* Pleroma light theme customization */

#app {
    background-image: none !important;
    background-color: rgba(241, 241, 241, 1);
}

#heading {
    background-image: none !important;
    background-color: rgba(255, 255, 255, 1) !important;

mprymek

/*

Golang's methods are not "virtual" or "overridable".
Don't expect OOP-like inheritance, use composition instead.

Try it here: https://play.golang.org/p/DujbnuHDZAW

*/

package main

mprymek

/*

Basic Golang struct embedding example

Try it here: https://play.golang.org/p/HGfzu4m6AB8

*/

package main

mprymek

/*

Duck typing in golang example.

You can try it here: https://play.golang.org/p/kHRnpmA206r

*/

package main

mprymek

mprymek

# Pop item at index i from list. Returns (item,new_list)
def pop2(l,i):
  l1 = l[0:i]
  l2 = l[(i+1):]
  return (l[i],l1+l2)

def solve(numbers,goal):
  solutions = []
  for i in range(len(numbers)):
    (num,numbers2) = pop2(numbers,i)

mprymek

# Simple Phoenix authentication plug
#
# - based on Plug's session store
# - redirects unauthenticated requests to login page "/login/<request url>"
# - /static/... requests are not authenticated 
# - authentication is valid as long as session is valid (you can change this behaviour easily)

# Because we need session to be fetched BEFORE this plug, we must put this to router.ex:

#----------------------------

mprymek

defmodule TokenHolder do
  require Logger

  def start_link(user,passwd) do
    Agent.start_link(fn ->
      tok_time = get_token user, passwd
      {user,passwd,tok_time}
    end, name: __MODULE__)
  end

mprymek

defmodule SafeCode do

  def compile code do
    # we can use [existing_atoms_only: true] here
    {:ok, qcode} = code |> Code.string_to_quoted()
    unless safe? qcode do
      raise "Code is unsafe"
    else
      qcode |> Code.compile_quoted
    end