<pre>RFC 4648 defines a "URL and Filename safe" base 64 alphabet, which replaces '+' with '-' and '/' with '_'.</pre><pre>Would anyone have any objections if I added support for this into the base64 module?</pre>
<pre>I'm adding in safe_encode(), safe_decode(), safe_encode_to_string(), and safe_decode_to_string() functions.</pre><pre>How should I submit my patch?</pre><pre><br></pre>