Syms

Syms is a stack-based language made by User:CatIsFluffy without many built in stack manipulation operators, but tools to build them.

Commands

These are for the latest versions of Syms (1.4+). For older versions, please refer to this old version of the page.

Code	What it does
{...}	Push "..." to the stack as a string. Nestable.
$c	Push "c" to the stack as a string.
number	Push number to the stack as a number.
\	Escape the next character in a string.
& in string	Insert top of stack into string.
"	True
'	False
>	Print
<	Input
+	Add/join strings (b+a pop a first)
-	Subtract (b-a pop a first)
*	Multiply/string repeat
/	Divide (b/a pop a first)
;	Cast to number
=	Equal
!	Logical NOT
& outside of string	Logical AND
|	Logical OR
@	Index into string
#	Length of string
:	Cast to string
~	Swap top two stack elements
]	Pop
)	Execute string as code
?	If top element then ) else ]
(	Escape a string (surround with {} and escape &\)
[	Duplicate
_	Stack empty?

Examples

Self interpreter (no autoprint)

{Program:}<)

Interpreter

Available at Github or run programs at Try it online!