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# frozen_string_literal: true
module Mail::Parsers
class MimeVersionParser
include Mail::Utilities
def parse(s)
if Mail::Utilities.blank?(s)
return MimeVersionStruct.new("", nil)
end
mime_version = MimeVersionStruct.new
actions, error = Ragel.parse(:mime_version, s)
if error
raise Mail::Field::ParseError.new(Mail::MimeVersionElement, s, error)
end
major_digits_s = minor_digits_s = nil
actions.each_slice(2) do |action_id, p|
action = Mail::Parsers::Ragel::ACTIONS[action_id]
case action
# Major Digits
when :major_digits_s then major_digits_s = p
when :major_digits_e
mime_version.major = s[major_digits_s..(p-1)]
# Minor Digits
when :minor_digits_s then minor_digits_s = p
when :minor_digits_e
mime_version.minor = s[minor_digits_s..(p-1)]
when :comment_e, :comment_s then nil
else
raise Mail::Field::ParseError.new(Mail::MimeVersionElement, s, "Failed to process unknown action: #{action}")
end
end
mime_version
end
end
end
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