1#@!#!123s

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: / usr / share / ruby / optparse /

Filename : date.rb

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require 'optparse'
require 'date'

OptionParser.accept(DateTime) do |s,|
  begin
    DateTime.parse(s) if s
  rescue ArgumentError
    raise OptionParser::InvalidArgument, s
  end
end
OptionParser.accept(Date) do |s,|
  begin
    Date.parse(s) if s
  rescue ArgumentError
    raise OptionParser::InvalidArgument, s
  end
end