matches
Checks if a language tag matches one of the elements in a list of language ranges.
A language tag is considered to match a range in the list if the range is '*', the range is exactly the tag, or the range is a prefix of the tag, and the character after it in the tag is '-'.
Return
true if a match was found
Parameters
rangeList
a list of language ranges, separated by ';', ':', ',', or space characters. Each element must either be '*', or a RFC 3066 language range canonicalized as by func@Pango.Language.from_string