Splits a "data:" URI (of form data:mime type;base64encoded-data) into respective components.
The out_data_start points to the first byte inside the uri.
| uri |
a "data:" URI |
| out_mime_type |
location to store MIME type parameter, or null when not interested |
| out_charset |
location to store charset parameter, or null when not interested |
| out_is_base64 |
location to store whether the URI content is base64 encoded |
| out_data_start |
location to store the first byte in the |
|
whether could split the |