frequency.rb

# Count words in a sentence
require 'pry-nav'
require "pry"
require 'ap'

paragraph = <<-something
    Steven likes the movies.  Blake likes to ride his bike but hates movies.
    Blake is taller than steven.  Steven is a great teacher.
  something

def parse_paragraph(paragraph)
  paragraph.downcase.gsub!(".","").split(" ")
end

def letter_cost
  alpha_num = {}
  "a".upto("z").each.with_index(1) do |letter, index|
    alpha_num[letter] = index
  end
  alpha_num 
end

def word_cost(word,alpha_num)
  word.split("").reduce(0) do |acc, letter|
    acc += alpha_num[letter]
  end
end

def word_cost_in_paragraph(paragraph)
  cost = Hash.new(0)
  word_list = parse_paragraph(paragraph)
  word_list.each do |word|
    cost[word] += word_cost(word, letter_cost)
  end
  cost
end

word_costs = word_cost_in_paragraph(paragraph)
binding.pry