"slugify" in coffee. Based on http://dense13.com/blog/2009/05/03/converting-string-to-slug-javascript/

slugify.js.coffee

String::slugify = ->
  map =
    'à':'a'
    'á':'a'
    'ä':'a'
    'â':'a'
    'è':'e'
    'é':'e'
    'ë':'e'
    'ê':'e'
    'ì':'i'
    'í':'i'
    'ï':'i'
    'î':'i'
    'ò':'o'
    'ó':'o'
    'ö':'o'
    'ô':'o'
    'ù':'u'
    'ú':'u'
    'ü':'u'
    'û':'u'
    'ñ':'n'
    'ç':'c'
    '·':'-'
    '/':'-'
    '_':'-'
    ',':'-'
    ':':'-'
    ';':'-'
    'ƒ':'f'
    'œ':'oe'

  str = this.replace(/^\s+|\s+$/g, '').toLowerCase()

  for character, replacement of map
    str = str.replace(new RegExp(character, 'g'), replacement)
  
  str = str.replace(/[^a-z0-9 -]/g, '').replace(/\s+/g, '-').replace(/-+/g, '-');