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# frozen_string_literal: true
module Mail::Parsers
class ContentTransferEncodingParser
def parse(s)
content_transfer_encoding = ContentTransferEncodingStruct.new("")
if Mail::Utilities.blank?(s)
return content_transfer_encoding
end
actions, error = Ragel.parse(:content_transfer_encoding, s)
if error
raise Mail::Field::ParseError.new(Mail::ContentTransferEncodingElement, s, error)
end
encoding_s = nil
actions.each_slice(2) do |action_id, p|
action = Mail::Parsers::Ragel::ACTIONS[action_id]
case action
# Encoding
when :encoding_s then encoding_s = p
when :encoding_e
content_transfer_encoding.encoding = s[encoding_s..(p-1)].downcase
else
raise Mail::Field::ParseError.new(Mail::ContentTransferEncodingElement, s, "Failed to process unknown action: #{action}")
end
end
content_transfer_encoding
end
end
end
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