a GList of PangoItem in logical order. [element-type Pango.Item]
a GList of PangoItem structures in visual order. (Please open a bug if you use this function. It is not a particularly convenient interface, and the code is duplicated elsewhere in Pango for that reason.). [transfer full][element-type Pango.Item]
From a list of items in logical order and the associated directional levels, produce a list in visual order. The original list is unmodified.