Formats a CSS file so the rules and selectors are printed clearly. Rules are sorted alphabetically, selectors are sorted by length.

cssbeautify.rb

nodes = File.open("path/to/stylesheet.css").readlines.join("").gsub(/\n/,"").split("}").map do |chunk|
  selectors = chunk.split("{")[0]
  rules = chunk.split("{")[1]
  chunk = { :selectors => selectors.split(','), :rules => rules.split(';').map{|r| [r.split(':')[0],r.split(':')[1]]} } unless rules.nil? or selectors.nil?
end
output = ""
nodes.each do |node|
  unless node.nil?
    output += node[:selectors].sort {|x,y| x.length <=> y.length }.join(",\n") + " {\n"
    output += node[:rules].sort {|x,y| x[0] <=> y[0] }.map{|rule| "   #{rule.join(": ")}"}.join(";\n") + "\n}\n\n"
  end
end
puts output