Method: Tins::Duration.parse

Defined in:
lib/tins/duration.rb

.parse(string, template: '%S%d+%h:%m:%s.%f') ⇒ Integer, Float

Returns the number of seconds represented by the given duration string according to the provided template format.

Examples:

Tins::Duration.parse('6+05:04:03', template: '%S%d+%h:%m:%s') # => 536643
Tins::Duration.parse('6+05:04:03.21', template: '%S%d+%h:%m:%s.%f') # => 536643.21

Parameters:

  • string (String) —

    The duration string to parse.

  • template (String) (defaults to: '%S%d+%h:%m:%s.%f') —

    for the duration format, see #format.

Returns:

  • (Integer, Float) —

    The number of (fractional) seconds of the duration.



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# File 'lib/tins/duration.rb', line 16

def self.parse(string, template: '%S%d+%h:%m:%s.%f')
  s, t = string.to_s.dup, template.dup
  d, sd = 0, 1
  loop do
    t.sub!(/\A(%[Sdhmsf%]|.)/) { |directive|
      case directive
      when '%S' then s.sub!(/\A-?/)   { sd *= -1 if _1 == ?-; '' }
      when '%d' then s.sub!(/\A\d+/)  { d += 86_400 * _1.to_i; '' }
      when '%h' then s.sub!(/\A\d+/)  { d += 3_600 * _1.to_i; '' }
      when '%m' then s.sub!(/\A\d+/)  { d += 60 * _1.to_i; '' }
      when '%s' then s.sub!(/\A\d+/)  { d += _1.to_i; '' }
      when '%f' then s.sub!(/\A\d+/)  { d += Float(?. + _1); '' }
      when '%%' then
        if s[0] == ?%
          s[0] = ''
        else
          raise "expected %s, got #{s.inspect}"
        end
      else
        if directive == s[0]
          s[0] = ''
        else
          raise ArgumentError, "expected #{t.inspect}, got #{s.inspect}"
        end
      end
      ''
    } or break
  end
  sd * d
end