schedule.rb

gistfile1.rb

# encoding : utf-8
class Schedule


  TITLE       = /([\p{Word} ]*)/
  TIME_ADVERB = /(hoje|amanhã|depois de amanhã|semana que vem)/i
  DAY_OF_WEEK = /(Domingo|Segunda|Terca|Quarta|Quinta|Sexta|Sabado|Dom|Seg|Ter|Qua|Qui|Sex|Sab)/

  MINUTE  = /([0-6][0-9])/
  HOUR    = /([0-2][0-9])/

  YEAR    = /([0-9]{2}|[0-9]{4})/
  MONTH   = /([0]?[0-1][0-2])/
  DAY     = /([0-3]*[0-9]+)/

  DATE    = /((?<date>#{DAY}\/#{MONTH}\/#{YEAR}) (?<time>#{HOUR}:#{MINUTE}))|((?<date>#{DAY_OF_WEEK}))|((?<time>#{HOUR}:#{MINUTE}) (?<date>#{TIME_ADVERB}))|((?<date>#{TIME_ADVERB}) (?<time>#{HOUR}:#{MINUTE}))|((?<date>#{TIME_ADVERB})|((?<time>#{HOUR}:#{MINUTE})))/u

  SCHEDULE = /#{DATE} (?<title>#{TITLE})|(?<title>#{TITLE}) #{DATE}|(?<title>#{TITLE})/u

  
  def self.parse(schedule)
    return schedule.match(SCHEDULE)
  end

end


p Schedule.parse('amanhã 14:30 reunião do MAF')[:date]
p Schedule.parse('depois de amanhã 14:30 reunião do MAF')[:date]
p Schedule.parse('14:30 reunião do MAF')[:time]
p Schedule.parse('reunião do MAF amanhã 14:30')[:time]
p Schedule.parse('reunião do MAF amanhã 14:30')[:date]
p Schedule.parse('reunião do MAF amanhã 14:30')[:title]


#output => 
# "amanhã"
# "depois de amanhã"
# "14:30"
# "14:30"
# nil
# "reunião do MAF amanhã"