Process Mallard elements in inline mode.
This mode is applied to elements in inline context. It is be called by certain block elements and inline elements to process child content. Certain elements may appear in both block and inline mode, and the processing expectations for those elements is different depending on context.
Implementations of this mode should handle ubiquitous linking, text directionality, and other common inline features. Note that the mal2html.span template handles these things automatically, and is suitable for most inline elements. You can use the mal2html.inline.content.mode to output special content for the child elements.