Sha256: c84e8145c814787c53fc77985db8fc5678fc0f4247f1fe8a4b6f3a308b83f077
Contents?: true
Size: 986 Bytes
Versions: 25
Compression:
Stored size: 986 Bytes
Contents
class HeadMusic::Octave
include Comparable
DEFAULT = 4
MATCHER = /(-?\d+)$/
def self.get(identifier)
from_number(identifier) || from_name(identifier) || default
end
def self.from_number(identifier)
return nil unless identifier.to_s == identifier.to_i.to_s
return nil unless (-2..12).include?(identifier.to_i)
@octaves ||= {}
@octaves[identifier.to_i] ||= new(identifier.to_i)
end
def self.from_name(string)
if string.to_s.match(HeadMusic::Spelling::MATCHER)
_letter, _accidental, octave_string = string.to_s.match(HeadMusic::Spelling::MATCHER).captures
@octaves ||= {}
@octaves[octave_string.to_i] ||= new(octave_string.to_i) if octave_string
end
end
def self.default
@octaves[DEFAULT] ||= new(DEFAULT)
end
attr_reader :number
delegate :to_i, :to_s, to: :number
def initialize(number)
@number ||= number
end
def <=>(other)
self.to_i <=> other.to_i
end
private_class_method :new
end
Version data entries
25 entries across 25 versions & 1 rubygems