little function to make a bib key based on data gleaned from rss feed data

gistfile1.rb

# >> make_key('nytimes', '2011', 'Mapping the 2010 U.S. Census')
# => "nytimes:2011:mapping-2010-census"

def make_key(pubtoken, issued, title)

  # first, split title into array, and throw out punctuation and short words
  twords = title.scan(/\w+/).reject {|token| token.length < 4 }

  # take first few resulting words, join and downcase
  tslug = twords[0..3].join('-').downcase

  return "#{pubtoken}:#{issued}:#{tslug}"
end