Module: Periodic::Duration

Included in:
Periodic
Defined in:
lib/periodic/duration.rb

Defined Under Namespace

Modules: Units Classes: Duration

Class Method Summary collapse

Class Method Details

.sanitize_formatted_string(string) ⇒ Object 



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# File 'lib/periodic/duration.rb', line 18

def self.sanitize_formatted_string(string)
  if string.match(/:/) && !string.match(/[a-zA-Z ]/)
    # add leading zeros where missing...
    string.gsub!(/!(\d):/, '!0\1:')
    string.gsub!(/^(\d):/, '0\1:')
    string.gsub!(/:(\d):/, ':0\1:')
    string.gsub!(/:(\d):/, ':0\1:') # needs to happen twice??
    string.gsub!(/:(\d(.\d)*)$/, ':0\1')

    # remove leading zero-value digitals
    string.sub!(/[0:]*/, '')
  else
    # if the string starts with a number we can assume the value-label pairs are like '10 minutes'
    if string[0,1].match(/\d/) || string[0,1] == "!"
      string = string.split(/(!?\d[.\d]*[-_:, a-zA-Z]+)/).delete_if{|x| x == ""}.inject(String.new) { |memo, s| memo << ((s.match(/!/) || s.match(/[1-9]/)) ? s : "")  }

    # if starts with a letter we can assume the value-label pairs are like 'minutes: 10'
    else
      string = string.split(/([-A-Za-z: ,]+\d[.\d]*)/).delete_if{|x| x == ""}.inject(String.new) { |memo, s| memo << ((s.match(/!/) || s.match(/[1-9]/)) ? s : "")  }
      string.sub!(/([ ,])*([a-zA-Z]+)/, '\2')
    end

    # remove leading zero-value digitals
    string.sub!(/[0:]*/, '')
  end
  string.strip.gsub(/!/, '')
end