Scrabble for slack...

scrabble.rb

#!/usr/bin/env ruby

VALUES = [
  [1, %w{ e a o t i n r }],
  [2, %w{ d g }],
  [3, %w{ c m b p }],
  [4, %w{ h f w y v }],
  [5, %w{ k }],
  [8, %w{ h x }],
  [10, %w{ q z }]
]

exceptions = {
  "a" => "a2",
  "b" => "b2",
  "h" => "h2",
  "m" => "m2",
  "o" => "o3",
  "q" => "q2",
  "v" => "v2",
  "x" => "x2",
  " " => "blank2"
}

str = ARGV.join " "
str.downcase!
output = ""
total_value = 0

def find_value(letter)
  VALUES.each do |points, letters|
    if letters.include? letter
      return points
    end
  end

  0
end

str.chars.each do |char|
  next if char.match(/[^a-z\s_]/)
  total_value += find_value(char)

  if exceptions.include? char
    output << ":#{exceptions[char]}:"
  else
    output << ":#{char}:"
  end
end

puts "#{output} (#{total_value} points)"