show_version

# File lib/optparse/version.rb, line 5
 def show_version(*pkgs)
 progname = ARGV.options.program_name
 result = false
 show = proc do |klass, cname, version|
 str = "#{progname}"
 unless klass == ::Object and cname == :VERSION
 version = version.join(".") if Array === version
 str << ": #{klass}" unless klass == Object
 str << " version #{version}"
 end
 [:Release, :RELEASE].find do |rel|
 if klass.const_defined?(rel)
 str << " (#{klass.const_get(rel)})"
 end
 end
 puts str
 result = true
 end
 if pkgs.size == 1 and pkgs[0] == "all"
 self.search_const(::Object, /\AV(?:ERSION|ersion)\z/) do |klass, cname, version|
 unless cname[1] == ee and klass.const_defined?(:Version)
 show.call(klass, cname.intern, version)
 end
 end
 else
 pkgs.each do |pkg|
 begin
 pkg = pkg.split(/::|\//).inject(::Object) {|m, c| m.const_get(c)}
 v = case
 when pkg.const_defined?(:Version)
 pkg.const_get(n = :Version)
 when pkg.const_defined?(:VERSION)
 pkg.const_get(n = :VERSION)
 else
 n = nil
 "unknown"
 end
 show.call(pkg, n, v)
 rescue NameError
 end
 end
 end
 result
 end