Sha256: 8ec091b871e0bf9cedc985b78871025037ddf001bb90ab5588348c14f57e0a5c
Contents?: true
Size: 1.73 KB
Versions: 8
Compression:
Stored size: 1.73 KB
Contents
module Tins
module StringVersion
class Version
include Comparable
def initialize(string)
string =~ /\A[\.\d]+\z/ or raise ArgumentError, "#{string.inspect} isn't a version number"
@version = string.frozen? ? string.dup : string
end
def major
self[0]
end
def major=(number)
self[0] = number
end
def minor
self[1]
end
def minor=(number)
self[1] = number
end
def build
self[2]
end
def build=(number)
self[2] = number
end
def revision
self[3]
end
def revision=(number)
self[3] = number
end
def [](index)
array[index]
end
def []=(index, value)
value = value.to_i
value >= 0 or raise ArgumentError, "version numbers can't contain negative numbers like #{value}"
a = array
@array = nil
a[index] = value
a.map! { |x| x.nil? ? 0 : x }
@version.replace a * '.'
end
def succ!
self[-1] += 1
end
def pred!
self[-1] -= 1
end
def <=>(other)
pairs = array.zip(other.array)
pairs.map! { |a, b| [ a.nil? ? 0 : a, b.nil? ? 0 : b ] }
a, b = pairs.transpose
a <=> b
end
def ==(other)
(self <=> other).zero?
end
def array
@version.split('.').map { |x| x.to_i }
end
alias to_a array
def to_s
@version
end
alias inspect to_s
def version
self
end
end
def version
if frozen?
Version.new(self)
else
@version ||= Version.new(self)
end
end
end
end
require 'tins/alias'
Version data entries
8 entries across 8 versions & 1 rubygems