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m another note |
"x" is case-insensitive in ABNF |
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Line 490:
-- alphanumeric characters preceded by "x-".
-- Alphanumericity has already been checked.
if potential_subtags[last_matched_subtag_i + 1]
and potential_subtags[last_matched_subtag_i + 1]:lower() ~= "x" then
return parsed_subtags:throw("invalid subtag",
last_matched_subtag_i + 1)
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