module Seahorse::Util

def irregular_inflections(hash)
  @irregular_inflections.update(hash)
  @irregular_regex = Regexp.new(@irregular_inflections.keys.join('|'))
end

def underscore(string)
  string.
    gsub(@irregular_regex) { |word| '_' + @irregular_inflections[word] }.
    gsub(/([A-Z0-9]+)([A-Z][a-z])/, '\1_\2').
    scan(/[a-z0-9]+|\d+|[A-Z0-9]+[a-z]*/).
    join('_').downcase
end

def uri_escape(string)
  CGI.escape(string.encode('UTF-8')).gsub('+', '%20').gsub('%7E', '~')
end

def uri_path_escape(path)
  path.gsub(/[^\/]+/) { |part| uri_escape(part) }
end