These are the standalone functions exported by input-selection-model.
posToRangeposToRange(posOrRange: number | SelectionRange<number>): SelectionRange<number>;
Unifies the provided value to always be a SelectionRange.
isSelectionRangeisSelectionRange<T>(v: any): v is SelectionRange<T>;
A type guard function that checks if a value is a SelectionRange-like object.
caretPosToLineColumn and lineColumnToCaretPoscaretPosToLineColumn(textValue: string, caretPos: number): LineAndColumn;
lineColumnToCaretPos(textValue: string, lineAndCol: LineAndColumn): number;
A set of two functions for converting a numeric caret position into a line & column object and the other way around.
Also requires a text value to determine the values from.