baweaver

class Object
  def conditional_pipe(condition, &block)
    condition ? yield(self) : self
  end
  
  def true_tap(&block)
    self && yield(self)
    self
  end

baweaver

Malcolm Reynolds

Adam Jensen

Maes Hughes

baweaver

Intro

What if the world was, in its entirety, a functional program? Through the discovery of mathematics and pure functions, we can derived the process in which lead to our world.

This current variant is still in need of refinement, comments are appreciated as I clean up around the edges.

Divine Recursion

baweaver

module Rails
  def self.log_fn(level)
    -> object { self.logger.public_send(level, object); object }
  end
end

1.tap(&Rails.log_fn(:info))
# 1
# => 1

baweaver

# Do note I'm being very purposely verbose on some of these for the sake of clarity

map = -> list, fn {
  if list.empty?
    []
  else
    head, *tail = list
    
    [fn.call(head)].concat map.call(tail, fn)
  end

baweaver

How could I have known that that boy in the forests would be the one to save us all?

The Hero chosen by the Creator himself, god incarnate, high lord of our lands, the one to seal the Destroyer in the last Great War. He was hope, hope that we could live our lives without fear, that we could start again. Hope that would not last. Hope that died with that hero.

A man that we all thought dead, shrouded in night, has awoken. I've seen them, those who are said to stand against this man, and I fear for us all. I have little faith in these dissidents the people have held up as heroes:

A boy desperately seeking what it is to be a man amidst the ruin of the world as he knows it. How can one so terrified of the sword be expected to wield it against the evils of this land?

A girl running from her fate, dreading the day it should catch her. Why, when that very fate may be the last hope we have?

baweaver

In the beginning there was the song, and the song was all things. It was given to the creations, so that all may create as they too had been created.

How then, did things go so wrong?

It all started when we began to distinguish some songs as more pure, more pleasing to the creator. Some were particularly gifted in the song, and as such must be that much more beautiful of a song to be sung.

Such songs as these should be revered, taught, spread throughout the lands! All must hear the true songs of the high priests, for they are the songs closest to our creator.

If there are such magnificent songs, how then can we condone the singing of rabble and misfits? Do they not screech upon our creators ears? Are they not vile and detestable things?

baweaver

def plerpsort(ary)
  ints, strs        = ary.each_with_index.partition { |e,i| e =~ /\A-?\d+\z/ }
  int_vals, int_idx = *ints.transpose
  str_vals, str_idx = *strs.transpose

  int_vals.sort.zip(int_idx).concat(str_vals.sort.zip(str_idx)).sort_by(&:last).map(&:first)
end

baweaver

# Fingals Hohle - J.K. Mertz
# Youtube:       https://www.youtube.com/watch?v=sp3R01jjC9w
# Original Midi: http://www.classicalguitarmidi.com/subivic/Mertz_Fingal's_Cave.mid
#
# Good luck! I’ve done some slight modifications to the original to make it easier to play
# on guitar by making string gaps more reasonable. Even with that, this one is still a wild
# ride.

E|-----0-------------0---------|-----0-------------0---------|-------2--------------------------------|
B|---0-------------0-----------|---0-------------0-----------|-----4-----------------------------4----|

baweaver

def method
  raise 'hell'
rescue
  puts 'nope'
end