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 Script.iterFree.
the new script iterator, initialized
to point at the first range in the text, which should be
freed with Script.iterFree. If the string is
empty, it will point at an empty range.
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 Script.iterFree.