JSON_ESCAPE_REGEXP = /[\u2028\u2029&><]/g

JSON_ESCAPE =
	'&': '\\u0026'
	'>': '\\u003e'
	'<': '\\u003c'
	'\u2028': '\\u2028'
	'\u2029': '\\u2029'

module.exports = StringHelper =
	# stringifies and escapes a json object for use in a script. This ensures that &, < and > characters are escaped,
	# along with quotes. This ensures that the string can be safely rendered into HTML. See rationale at:
	# https://api.rubyonrails.org/classes/ERB/Util.html#method-c-json_escape
	# and implementation lifted from:
	# https://github.com/ember-fastboot/fastboot/blob/cafd96c48564d8384eb83dc908303dba8ece10fd/src/ember-app.js#L496-L510
	stringifyJsonForScript: (object) ->
		return JSON.stringify(object).replace JSON_ESCAPE_REGEXP, (match) ->
			return JSON_ESCAPE[match]