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 pango_script_iter_free().
the new script iterator, initialized
to point at the first range in the text, which should be
freed with pango_script_iter_free(). 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 pango_script_iter_free().