Description
the filter_expansion.lua defines how the shortcuts match to specific class/role combinations. The text matching is all keys that start with the user tokens. Such as "rog" matches rogues. "shad" matches shadow (priest). You can enter multiple search tokens at once as shown in the gif. Such as "heal tank"
Caveats: There is no spec information currently. So looking for elemental shaman might return enhancement shamans as they share the same role in the lfg.
Feel free to report issues or suggestions as comments here

