CATHY

CATHY

CATHY is a stack-based esolang. It has 32 commands, each a different capitalisation of `CATHY`.

Commands:

Caption text

Command	normal form	Action
cathy	0	Literal digit 0, can be joined to other digits
cathY	1	Literal digit 1, can be joined to other digits
catHy	2	Literal digit 2, can be joined to other digits
catHY	3	Literal digit 3, can be joined to other digits
caThy	4	Literal digit 4, can be joined to other digits
caThY	5	Literal digit 5, can be joined to other digits
caTHy	6	Literal digit 6, can be joined to other digits
caTHY	7	Literal digit 7, can be joined to other digits
cAthy	8	Literal digit 8, can be joined to other digits
cAthY	9	Literal digit 9, can be joined to other digits
cAtHy	+	Add two numbers popped form stack
cAtHY	-	Subtract two numbers
cAThy	/	Divide two numbers
cAThY	*	Multiply two numbers
cATHy	ƒ	Reduce by next command
cATHY	[	If pop(stack) is true, then do following
Cathy	{	Forever, do following
CathY	⟑	Map following over pop()
CatHy	;	Close structure
CatHY	:	Dup
CaThy	_	Pop
CaThY	?	Take input
CaTHy	s	sort
CaTHY	J	Concat/append/prepend
CAthy	τ	To base
CAthY	o	Remove
CAtHy	$	Swap
CAtHY	„	Shift stack left
CAThy	‟	Shift stack right
CAThY	,	Print with trailing newline
CATHy	C	Char
CATHY	β	From base

Interpreter with an example Hello, World program

Compiler from normal form to CATHY form