InString

A region "covers" an indentation with width if it has width as known indentation width (either as primary, or in case of an Indent region as alternate width).

The enclosing region, which is required to exist

The indentation width, Zero if not known

Does width represent an undent of an enclosing indentation region? This is the case if there is an indentation region that goes deeper than width and that is enclosed in a region that contains width as an indentation width.

Is this region the outermost region?

Returns a string representation of the object.

The default representation is platform dependent.

Show open regions as list of lines with decreasing indentations