$: << Dir.getwd

require 'logger'
require 'loggable'

class Klass
    include Loggable

    def initialize
        @logger = nil

        self.logger = Logger.new($stdout)

        @logger.formatter = MyFmt.new
    end
end

class MyFmt
    FORMAT = "%s, [%s] %s: %s\n"
    PN_RE  = /in \`(.+)\'/

    def initialize
    end

    public

    #          String, Time, String,   Object
    def call(severity, time, progname, msg)
        datetime = time.strftime("%m/%d %H:%M:%S")

        if severity == "DEBUG"
            progname.gsub!(PN_RE, '\1')
        else
            progname = PN_RE.match(progname)[1] + '()'
        end

        FORMAT % [severity[0][0], datetime, progname, msg]
    end

    private
end

if $0 == __FILE__
    k = Klass.new

    k.log(:debug, 'debugging!')
    k.log(:info, 'infoing!')
end