tag()

tag.coffee

tag = (name, text, attrs) ->
  parts = (name ? 'div').split /(?=[.#])/
  tagName = "div"
  classes = []
  id = undefined
  for p in parts when p.length
    switch p[0]
      when '#' then id = p.substr 1 if p.length > 1
      when '.' then classes.push p.substr 1 if p.length > 1
      else tagName = p
  if /:/.test tagName
    [ns, tagName] = tagName.split /:/
  if ns is 'svg'
    element = document.createElementNS "http://www.w3.org/2000/svg", tagName
  else
    element = document.createElement tagName
  element.id = id if id?
  element.classList.add c for c in classes
  element = $ element
  element.attr attrs if attrs?
  if typeof text is 'string' or typeof text is 'number'
    element.text text
  else if text?.length?
    element.append e for e in text
  else if text
    element.append text
  element