text_score.rb

#!/usr/bin/env ruby
# Uses the Readability Metrics API from http://ipeirotis.appspot.com/readability-api.html
# Accepts text from STDIN (piped) or as an argument
=begin examples
pbpaste|text_score.rb # copy text and run (on OS X) to get the stats for the clipboard.
cat myfile.md|text_score.rb # get scores for the contents of a file
=end

require 'open-uri'
require 'net/http'
require 'json'

input = STDIN.stat.size > 0 ? STDIN.read : ARGV.join

res = Net::HTTP.post_form(URI.parse("http://ipeirotis.appspot.com/readability/GetReadabilityScores"),{'format'=>'json', 'text'=>input})

if res.code.to_i == 200
	json = JSON.parse(res.body)
	puts "Characters:     " + json['characters'].to_s
	puts "Words:          " + json['words'].to_s
	puts "Sentences:      " + json['sentences'].to_s
	puts "Syllables:      " + json['syllables'].to_s
	puts "Complex words:  " + json['complexwords'].to_s
	puts "Gunning-Fog:    " + json['gunningfog'].to_s
	puts "ARI:            " + json['ari'].to_s
	puts "Coleman Liau:   " + json['colemanliau'].to_s
	puts "Flesch Kincaid: " + json['fleschkincaid'].to_s
	puts "Flesch Reading: " + json['fleschreading'].to_s
	puts "Smog:           " + json['smog'].to_s
	puts "Smog Index:     " + json['smogindex'].to_s
else
	puts "Error: " + res.code
end