Module: Rack::Tracker::JavaScriptHelper

Included in:
GoogleAnalytics::Parameter, Handler
Defined in:
lib/rack/tracker/javascript_helper.rb

Overview

This module is extracted from Rails to provide reliable javascript escaping.

See Also:

Constant Summary collapse

JS_ESCAPE_MAP = 
{
    '\\' => '\\\\',
    '</' => '<\/',
    "\r\n" => '\n',
    "\n" => '\n',
    "\r" => '\n',
    '"' => '\\"',
    "'" => "\\'"
}

Instance Method Summary collapse

Instance Method Details

#escape_javascript(javascript) ⇒ Object Also known as: j

Escapes carriage returns and single and double quotes for JavaScript segments.

Also available through the alias j(). This is particularly helpful in JavaScript responses, like:

$('some_element').replaceWith('<%=j render 'some/element_template' %>');



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# File 'lib/rack/tracker/javascript_helper.rb', line 25

def escape_javascript(javascript)
  if javascript
    javascript.to_s.gsub(/(\\|<\/|\r\n|\342\200\250|\342\200\251|[\n\r"'])/u) { |match| JS_ESCAPE_MAP[match] }
  else
    ''
  end
end