Returns the one-based column number of this position.
Returns the one-based line number of this position.
Returns the note attached to the marked position, or null if this
position has no attached note.
Returns the zero-based byte offset of this position.
Returns a new Mark at the given zero-based byte offset, one-based
line number, and one-based column number, with an optionally attached
note.
Returns a Mark at byte offset 0, line 1, and column 1, with no
attached note.
Description of a source position, identified by byte offset, line, and column number, with an optional note.