Each element, tried in order, has the form (REGEXP . EXTRACT).
If REGEXP matches the current line (from the beginning of the line),
`ff-treat-as-special' calls function EXTRACT with no args.
If EXTRACT returns nil, keep trying. Otherwise, return the
Each element, tried in order, has the form (REGEXP . EXTRACT).
If REGEXP matches the current line (from the beginning of the line),
`ff-treat-as-special' calls function EXTRACT with no args.
If EXTRACT returns nil, keep trying. Otherwise, return the