Moe meta-files
##############

Grammar:
~~~~~~~~

<file> = <attribute>*

<attribute> = (<single> | <nested> | <comment>)

<single> = <indent> <name> ":" <value> "\n"

<nested> = <open> <attribute>* <close>
<open> = <indent> <name> "(" "\n"
<close> = <indent> ")" "\n"

<indent> = (<sp>|<tab>)*
<name> = (A-Z | a-z | 0-9 | "-" | "_")+
<value> = (<any-printable-UTF8-char> | 0x09)*

<comment> = ("\n" | <indent> "#" <value> "\n")

-- there can be multiple attributes with the same name
-- spaces can be present only where explicitly allowed by the grammer

Input to the queue manager
~~~~~~~~~~~~~~~~~~~~~~~~~~
task:		name of the task
subtask:	name of the sub-task (for open-data problems)
source:		file name of the submitted source
codex(...)	attributes specific to CodEx

Added by the queue manager
~~~~~~~~~~~~~~~~~~~~~~~~~~
queue-enter:	when did the submit enter the queue (unix timestamp; set by
  		qman according to the original timestamp of the meta-file)
queue-eval:	timestamp of the start of evaluation
queue-done:	timestamp of the finish of evaluation

Added by the evaluator
~~~~~~~~~~~~~~~~~~~~~~
test(		results of a single test
  -- mandatory:
  id:		the name of the test
  points:	number of points assigned
  status:	status code:
			OK = passed successfully
			CE = compile error
			FO = forbidden operation (forbidden syscall atd.)
			RE = runtime error (exitcode set)
			SG = killed by signal (exitsig set)
			TO = timeout
			WA = wrong answer
			PA = partial answer
			PE = protocol error (in case of interactive tasks)
			XX = internal error (e.g., error when calling judge)
  message:	human-readable status message (not intended for machine parsing)
  -- optional:
  time:		run time in seconds (float)
  time-wall:	run time on wall clock (float seconds)
  mem:		used memory in bytes
  exitcode:	program exit code
  exitsig:	signal causing process death
  killed:	set to 1 if the process has been killed (and therefore the
		time and memory usage are incomplete)
)