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# frozen_string_literal: true
module Mail::Parsers
class DateTimeParser
include Mail::Utilities
def parse(s)
raise Mail::Field::ParseError.new(Mail::DateTimeElement, s, "nil is an invalid DateTime") if s.nil?
date_time = DateTimeStruct.new([])
actions, error = Ragel.parse(:date_time, s)
if error
raise Mail::Field::ParseError.new(Mail::DateTimeElement, s, error)
end
date_s = time_s = nil
actions.each_slice(2) do |action_id, p|
action = Mail::Parsers::Ragel::ACTIONS[action_id]
case action
# Date
when :date_s then date_s = p
when :date_e
date_time.date_string = s[date_s..(p-1)]
# Time
when :time_s then time_s = p
when :time_e
date_time.time_string = s[time_s..(p-1)]
else
raise Mail::Field::ParseError.new(Mail::DateTimeElement, s, "Failed to process unknown action: #{action}")
end
end
date_time
end
end
end
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