input:	1
	;
output:	1
	;
aliases:
	SPACE	= 32
		;
	QUERY	= 63
		;

	SLASH	= 47
		;
	CONSONANT	= (`('|`)'|`+'|`#'|`&'|`$'| % $
		`B'|`G'|`D'|`H'|`W'|`Z'|`X'|`Y'|`K'|`L'|`M'|`N'|
		`S'|`P'|`C'|`Q'|`R'|`T')
		;
	VOWEL		= ( `A'|`F'|`I'|`E'|`"'|`O'|`U'|`.'|`:'|`-'|
			`.'|`''|`*'|`]')
		;
	DIGIT		= (`0'-`9')
		;
	PRINTABLE	= ({CONSONANT}|{VOWEL}|{DIGIT})
		;
	NONPRINTABLE	= ^({CONSONANT}|{VOWEL}|{DIGIT})
		;
expressions:
%% The only purpose of this `pre-BHS' otp is to map the question mark
%% and slash into nulls.  I don't know what else these characters are
%% good for.
	{QUERY}	=>
		;
	{SLASH}	=>
		;
%%	{NONPRINTABLE}	=>	32
%%		;					
	.		=> \1
		;