Class: Embulk::Guess::TimeFormatGuess::Rfc2822Pattern

Inherits:
Object
  • Object
show all
Includes:
Parts
Defined in:
embulk-core/src/main/ruby/embulk/guess/time_format_guess.rb

Constant Summary

Constants included from Parts

Parts::DAY, Parts::DAY_NODELIM, Parts::HOUR, Parts::HOUR_NODELIM, Parts::MINUTE, Parts::MINUTE_NODELIM, Parts::MONTH, Parts::MONTH_NAME_FULL, Parts::MONTH_NAME_SHORT, Parts::MONTH_NODELIM, Parts::WEEKDAY_NAME_FULL, Parts::WEEKDAY_NAME_SHORT, Parts::YEAR, Parts::ZONE_ABB, Parts::ZONE_OFF

Instance Method Summary collapse

Constructor Details

#initializeRfc2822Pattern

Returns a new instance of Rfc2822Pattern



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# File 'embulk-core/src/main/ruby/embulk/guess/time_format_guess.rb', line 334

def initialize
  @regexp = /^(?<weekday>#{WEEKDAY_NAME_SHORT}, )?\d\d #{MONTH_NAME_SHORT} \d\d\d\d(?<time> \d\d:\d\d(?<second>:\d\d)? (?:(?<zone_off>#{ZONE_OFF})|(?<zone_abb>#{ZONE_ABB})))?$/
end

Instance Method Details

#match(text) ⇒ Object



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# File 'embulk-core/src/main/ruby/embulk/guess/time_format_guess.rb', line 338

def match(text)
  if m = @regexp.match(text)
    format = ''
    format << "%a, " if m['weekday']
    format << "%d %b %Y"
    format << " %H:%M" if m['time']
    format << ":%S" if m['second']
    if m['zone_off']
      if m['zone_off'].include?(':')
        format << " %:z"
      else
        format << " %z"
      end
    elsif m['zone_abb']
      # don't use %Z: https://github.com/jruby/jruby/issues/3702
      format << " %z" if m['zone_abb']
    end
    SimpleMatch.new(format)
  else
    nil
  end
end