script is one of the scripts used to write this.
The returned value is conservative; if nothing is known about the language tag this,
be returned, since, as far as Pango knows,
script might be used to write this.
This routine is used in Pango's itemization process when determining if a supplied language tag is relevant to a particular section of text. It probably is not useful for applications in most circumstances.
This function uses get_scripts internally.
a Language, or