By default, functions returning a document context will
return a list of selections, including both the 'primary'
selection and also 'other' selections (e.g. to handle the
case where a user might have multiple cursors active).
Use primary_selection() to extract the primary
selection.
primary_selection(x, ...)
| x | A document context, or a selection. |
|---|---|
| ... | Optional arguments (currently ignored). |