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require 'date'
require 'time'
module RubyVersion
VERSION = '1.0.1'
class << self
def to_s
RUBY_VERSION
end
alias inspect to_s
# comparable
def <=>(other)
value = case other
when Integer
RUBY_VERSION.to_i
when Float
RUBY_VERSION.to_f
when String
RUBY_VERSION
when Date, Time
other.class.parse(RUBY_RELEASE_DATE)
else
other = other.to_s
RUBY_VERSION
end
value <=> other
end
include Comparable
# chaining for dsl-like language
def is?(other = nil)
if other
RubyVersion == other
else
RubyVersion
end
end
alias is is?
# aliases
alias below <
alias below? <
alias at_most <=
alias at_most? <=
alias above >
alias above? >
alias at_least >=
alias at_least? >=
alias exactly ==
alias exactly? ==
def not(other)
self != other
end
alias not? not
alias between between?
# compare dates
def newer_than(other)
if other.is_a? Date or other.is_a? Time
RubyVersion > other
else
RUBY_RELEASE_DATE > other.to_s
end
end
alias newer_than? newer_than
def older_than(other)
if other.is_a? Date or other.is_a? Time
RubyVersion < other
else
RUBY_RELEASE_DATE < other.to_s
end
end
alias older_than? older_than
def released_today
RubyVersion.date == Date.today
end
alias released_today? released_today
# accessors
def major
RUBY_VERSION.to_i
end
alias main major
def minor
RUBY_VERSION.split('.')[1].to_i
end
alias mini minor
def tiny
RUBY_VERSION.split('.')[2].to_i
end
alias teeny tiny
def patchlevel
RUBY_PATCHLEVEL
end
def platform
RUBY_PLATFORM
end
def release_date
Date.parse RUBY_RELEASE_DATE
end
alias date release_date
def description
RUBY_DESCRIPTION
end
def revision
defined?(RUBY_REVISION) && RUBY_REVISION
end
end
end
# J-_-L
|
