html-domparser.coffee

#
# DOMParser HTML extension
# 2012-09-04
# 
# By Eli Grey, http://eligrey.com
# Public domain.
# NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
#

#! @source https://gist.github.com/1129031
#global document, DOMParser
"use strict"

DOMParser_proto = DOMParser.prototype
real_parseFromString = DOMParser_proto.parseFromString

# Firefox/Opera/IE throw errors on unsupported types
try
	# WebKit returns null on unsupported types
	return if (new DOMParser).parseFromString "", "text/html"
	# text/html parsing is natively supported
catch ex

DOMParser_proto.parseFromString = (markup, type) ->
	if /^\s*text\/html\s*(?:;|$)/i.test type
		doc = document.implementation.createHTMLDocument ""
    if markup.toLowerCase().indexOf('<!doctype') > -1
      doc.documentElement.innerHTML = markup
    else
      doc.body.innerHTML = markup
		return doc
	else
		return real_parseFromString.apply @, arguments