Moed

Moed (pronounced /mid/) is an esoteric programming language by User:Dhzb.

Whitespace

Whitespace is sometimes significant.

Newlines

Newlines can be scoped inside of {...} groups which can be targeted by newline-imperae.

Execution

Moed executes in a given direction which is initialized to 1 (right), the direction can be changed to other values by using one of three dexterimperae.

Data storage

Moed primarily uses the stack to store short-term data but also provides a secondary medium which is the matrix.

When an empty stack is popped, it returns 0.

The memory matrix is infinite in all directions.

Imperae

Currently, Moed has 2 types of imperae: Dexterimperae and Sinisterimperae. Each imperae has an associated symbol to represent it.

Dexterimperae

All dexterimperae

Symbol	Version	Name	Description
0-9	A1	Digit	Pushes the corresponding digit onto the stack
>	A1	Right	Sets the direction of execution to 1
<	A1	Left	Sets the direction of execution to -1
|	A1	Mirror	Mirrors (by negating) the execution direction
_	A1	Newline	Jumps to the next character of the next newline in the current scope
"	A1	Subnewline	Pops n and jumps to the next character of the next newline in the scope n levels up
=	A1	Skip	Skips over one execution step (including groups as one execution step)
+	A1	Addition	Pops x and y and pushes x+y onto the stack
-	A1	Subtraction	Pops x and y and pushes x-y onto the stack
*	A1	Multiplication	Pops x and y and pushes x×y onto the stack
/	A1	Division	Pops x and y and pushes x÷y onto the stack (0 divisor returns 0)
%	A1	Modulo	Pops x and y and pushes x mod y onto the stack (negative wraps around, 0 divisor returns 0)
^	A1	Exponentiation	Pops x and y and pushes xy onto the stack
\	A1	Swap	Swaps the top 2 values on the stack
$	A1	Discard	Pops a value and discards it
'	A1	Character	Skips one execution step and pushes the character at the execution pointer onto the stack
:	A1	Duplicate	Duplicates the top value on the stack
;	A1	N-duplicate	Pops n and duplicates the nth value from the top of the stack (starting at 0) to the top of the stack
&	A1	Incharacter	Gets a character from input
?	A1	Auxiliary incharacter	Gets a character from auxiliary input
#	A1	Innumber	Gets a number literal from input
,	A1	Outcharacter	Outputs a character from the stack (pop)
.	A1	Outnumber	Outputs a number literal from the stack (pop)
`	A1	Unvalencitudinity	If top of stack (don't pop) is nonzero, continue forwards, otherwise mirror+skip
~	A1	Sinisterimpera toggle	Interpret the characters as sinisterimperae from now on
@	A1	Stop	Halts the program execution
(...)	A1	Special	Does a special operation based on the first character in it and the rest of the string
J	B1	Jump	Pops n and jumps to the nth j relative to the current character
I	B1	Pause	Pauses execution
R	B1	Return	Returns to the previous location before a custom impera call
Any other character	B1	Call	Goes to the location associated with the character

Sinisterimperae

All sinisterimperae

Symbol	Version	Name	Description
|	A1	Set	Pops y, x, and v and sets the value at the corresponding position x,y in the matrix to v
^	A1	Get	Pops y and x and pushes the value at the corresponding position x,y in the matrix onto the stack
=	A1	Skip	Does the same as it is as a dexterimpera except that it doesn't skip groups
?	B1	Random	Pushes a random number in the range [0,1)
.	B1	Floor	Applies a floor function on the top value on the stack
:	B1	Ceiling	Applies a ceiling function on the top value on the stack
;	B1	Round	Applies a round function on the top value on the stack
*	C1	Sign	Gets the sign of the top value on the stack
~	A1	Dexterimpera toggle	Interpret the characters as dexterimperae from now on
Any other character	A1		Does nothing

Special operations

All special operations

First character	Version	Description
"	A1	Pushes the rest of the string onto the stack starting from the end of the string
&	A1	Prints the rest of the string
=	B1	Associates a location (after the '=') with the popped character on the stack
Any other character	A1	Does nothing

Examples

Moed/Examples

Computational class

User:Dhzb has created a brainfuck interpreter with infinite cells in Moed [1], therefore, Moed is turing-complete

Implementation

• p5js interpreter

Future additions

Moed-B1

• [✓] Custom operations (e.g. '√(=21/\^)) -- now '√(=21/\^R)
• [✓] Pause execution

Moed-A2

• [__] Additional memory slots in every other dimension
• [__] Internet connection