britishtea

function fish_right_prompt -d "Write out the right prompt"
  set -l exit_code $status
  set -l is_git_repository (git rev-parse --is-inside-work-tree 2> /dev/null)
  set -l max_shlvl 1; and test "$TERM" = "screen"; and set -l max_shlvl 2

  # Print a fork symbol when in a subshell
  if test $SHLVL -gt $max_shlvl
    set_color yellow
    echo -n "⑂ "
    set_color normal

britishtea

require "benchmark/ips"

input = %w[one two three four five six seven]

Benchmark.ips do |x|
  x.report "Array#join" do
    Regexp.new input.map { |e| Regexp.escape e }.join "|"
  end

  x.report "Regexp.union" do

britishtea

module Dependency
  def self.give_me_the_nil
    nil
  end
end

britishtea

This are instructions to run terco on login on Mac OS X.

1. Install terco using the system ruby (sudo gem install terco).
2. Copy the script below to ~/Library/LaunchAgents/com.soveran.terco.plist. You may have to replace `/usr/local/bin/terco`, if terco has been installed to a different directory (use `which terco` to find out).
3. Load the script using the command

   sudo launchctl load ~/Library/LaunchAgents/com.soveran.terco.plist

To make a domain resolve to localhost follow these instructions:

britishtea

class Foo
  def self.bar(&block)
    instance_exec(&block)
  end
  
  attr_accessor :x
end

Foo.bar do
  x = 5

britishtea

require "simplecov"

SimpleCov.command_name "unit:#{Process.pid}"
SimpleCov.at_exit do
  orig, $stdout = $stdout, File.open("/dev/null", "w")
  SimpleCov.result.format!
  $stdout, orig = orig, nil
end

SimpleCov.start

britishtea

function jump -d "Jumps to a marked directory"
    # If $JUMP_PATH isn't set, use a default (~/.config/jump).
    if set -q $JUMP_PATH
        set JUMP_PATH $HOME/.config/jump
    end

    # If the $JUMP_PATH directory doesn't exist, create it.
    if not test -d $JUMP_PATH
        mkdir -p $JUMP_PATH
    end

britishtea

class RingBuffer
  attr_reader :capacity, :size

  def initialize(capacity)
    @array = Array.new(capacity)
    @capacity = capacity
    @read_index = 0
    @size = 0
  end

britishtea

require 'function'

# A fibonacci function.

fib = Function.new
fib[0]       = 0
fib[1]       = 1
fib[Integer] = ->(i) { fib[i - 2] + fib[i - 1] }

p fib[0]  # => 0

britishtea

require "pattern_matching"

# Let's abuse case statements and the case equality method (#===) to implement
# pattern matching in Ruby.
#
# Note that this'll only work in Ruby 2.1.0-dev (2.0.0-p247 and lower does not
# honour refined #=== in case statements).

using PatternMatching