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 '-'.
this |
a language tag (see [[email protected]_string]), null is allowed and matches nothing but '*' |
range_list |
a list of language ranges, separated by ';', ':', ',', or space characters. Each element must either be '*', or a RFC 3066 language range canonicalized as by [[email protected]_string] |
true if a match was found |