By default, it matches only sequences of "keyword" characters (alphanumerics and underscore), and it has no deep sense of context beyond matching what's immediately to the left of the cursor.

Both sides of the anterior temporal lobe are important for memory processing - the left ATL deals with context, while the right ATL is associated with visual memory, New Scientist says.

As such, I'll defer what little implementation is left to the sample application and instead focus on how to show context menus.