module Wobbly

Public Class Methods

in(s) click to toggle source

Process the tokens into the collective date

# File lib/wobbly.rb, line 8
def self.in(s)
  now = Time.now

  tokens(s).each do |t|
    token = t.gsub(/(\d+)/, '\1,').split(',')

    next if token.size != 2

    amt = token[0].to_i
    seg = token[1].to_s

    case seg
      when 's'
        now = now + amt
      when 'm'
        now = now + (amt*60)
      when 'h'
        now = now + (amt*60*60)
      when 'D'
        now = now + (amt*24*60*60)
      when 'W'
        now = now + (amt*7*24*60*60)
      when 'M'
        now = now + (amt*4*7*24*60*60)
      when 'Y'
        now = now + (amt*12*4*7*24*60*60)
      else
        raise "Invalid time segment provided #{seg}"
    end
  end

  now
end

tokens(s) click to toggle source

Parse the string into chunks

# File lib/wobbly.rb, line 3
def self.tokens(s)
  s.scan(/[0-9]+[smhDMWY]/)
end