Alternative text for the image, or null when no alt attribute is given
Link target with any leading * removed, or null when the item has no
link attribute.
true if the link opens in a new window (* prefix on source or link)
Raw image source string with any leading * removed.
Classification follows the Wikidot rules and happens at render time:
a source containing :// is external, one containing / refers to
another page's file, anything else is a file on the current page.
A single
: source link="..." alt="..."entry inside[[gallery]].