the new script iterator, initialized to point at the first range in the text, which should be freed with [method@Pango.ScriptIter.free]. If the string is empty, it will point at an empty range.
ConstructionException GTK+ fails to create the object.
1.4
Create a new PangoScriptIter, used to break a string of Unicode text into runs by Unicode script.
No copy is made of @text, so the caller needs to make sure it remains valid until the iterator is freed with [method@Pango.ScriptIter.free].