Maps a position of the cursor (point) to the corresponding token of type 'a in a given text editor with a .lp file open.
val empty : 'a t
The empty range map.
find pt map returns the only (token, range) couple in map such that
pt is a point within the mapped interval range. Requires
map to be well-defined (see add).
add range token map adds a mapping (key :
range, value :
Requires all added keys to be non overlapping intervals to be well-defined. /!\ Does not ensure proper functionning if the added keys are overlapping intervals, e.g might change a previously added (key, element) couple or throw an error.
val to_string : ( 'a -> string ) -> 'a t -> string