`class Period`

Definitions

`def self.parse(string)`

Parse a string into a period.

Signature

parameter　string　String | Nil: The string to parse.

Implementation

def self.parse(string)
	value, divisor = string&.split('/', 2)
	
	if divisor
		divisor = Integer(divisor)
	else
		divisor = 1
	end
	
	if value == '*'
		value = nil
	elsif value
		value = value.split(',').map do |part|
			if part =~ /\A(\d+)-(\d+)\z/
				Range.new(Integer($1), Integer($2))
			elsif part =~ /\A(-?\d+)\.\.(-?\d+)\z/
				Range.new(Integer($1), Integer($2))
			else
				Integer(part)
			end
		end
	end
	
	self.new(value, divisor)
end

`def increment(time)`

Increment the specific time unit to the next possible value.

Signature

parameter　time　Time: The time to increment, must be normalized.

Implementation

def increment(time)
	time.seconds = @successors[time.seconds]
end

`def reset(time)`

Reset the specific time unit to the first value.

Implementation

def reset(time)
	time.seconds = @values.first
end