make_point ln col creates a point with line ln and column col.

make_interval s e creates an interval with start s and end e. Requires the interval to be well defined (e.g with start < finish) or it will assert

Type for the position of a cursor relative to an interval.

Comparison over intervals.

An interval is considered "smaller" than another if its ending point is before the starting point of the other.

Intervals need to be well defined (i.e returned by make_interval). Two intervals are considered equal if one is included in the other. In any other case, overlapping intervals can't be compared and will throw an error.

translate i ds df returns the interval i with its starting point translated by ds and finishing point translated by df.

Will throw an error if the resulting interval is not well-defined (see make_interval). Only translates column-wise, does not modify the line coordinates of the extremity points.