def initialize(_name, hash={})
@DatePattern = (hash[:date_pattern] or hash['date_pattern'] or
DEFAULT_DATE_FMT)
@DateStamp = Time.now.strftime( @DatePattern);
_dirname = (hash[:dirname] or hash['dirname'])
if _dirname
if not FileTest.directory?( _dirname)
raise StandardError, "'#{_dirname}' must be a valid directory", caller
end
end
_filename = (hash[:filename] or hash['filename'])
if _filename.nil?
@filebase = File.basename( $0, '.rb') + ".log"
else
@filebase = File.basename((hash[:filename] or hash['filename'] or ""))
end
path = [_dirname, @filebase.sub(/(\.\w*)$/, "_#{@DateStamp}" + '\1')].compact
hash[:filename] = hash['filename'] = File.join(path)
super(_name, hash)
end