module ActionView::Helpers::TagHelper

tag("div", :data => {:name => 'Stephen', :city_state => %w(Chicago IL)})

# =>
tag("img", {:src => "open & shut.png"}, false, false)

# =>
tag("img", :src => "open & shut.png")

# =>
tag("input", :type => 'text', :disabled => true)

# =>

tag("br", nil, true)

# =>

tag("br")
==== Examples

from 1.4.3.
This may come in handy when using jQuery's HTML5-aware .data()
Values are encoded to JSON, with the exception of strings and symbols.

thus accessed as dataset.userId.
For example, a key +user_id+ would render as data-user-id and
To play nicely with JavaScript conventions sub-attributes are dasherized.

pointing to a hash of sub-attributes.
HTML5 data-* attributes can be set with a single +data+ key

+disabled+ and +readonly+.
Use +true+ with boolean attributes that can render with no value, like

You can use symbols or strings for the attribute names.
==== Options

escaping.
hash to +options+. Set +escape+ to false to disable attribute value
with HTML 4.0 and below. Add HTML attributes by passing an attributes
compliant. Set +open+ to true to create an open tag compatible
Returns an empty HTML tag of type +name+ which by default is XHTML

def tag(name, options = nil, open = false, escape = true)
  "<#{name}#{tag_options(options, escape) if options}#{open ? ">" : " />"}".html_safe
end