VoidLang

A stack-based language. It supports eval, user input, loops, and basic math. It was designed by iovoid.

Operators

• " starts and end pushing to stack
• ! prints the first element of stack, deleting it
• * multiply the two first elements of stack, deleting the originals
• / will divide the first element of stack with the seccond, deleting the originals
• + will add two first elements of stack, deleting the originals
• - will remove the first element of stack with the seccond, deleting the originals
• [ starts a loop
• ] ends a loop
• ~ breaks from a loop
• ? break if the first element of stack is 0
• # break if the length of stack is 1 or 0
• . pop first element of the stack
• % adds a random item to the stack, from 1 to 255
• $ push the length of the stack
• _ replace first item of stack with it converted to a string, if impossible return the original
• & eval the concatenation of all elements in the stack, replaces stack with output
• , take a line of input from stdin
• ; does nothing
• ^ push the program code to the stack
• | actually print the output (! is still needed)
• = end the program

Examples

Hello, World!

"Hello, World!"[#!]

What's done here? First, " opens the pushing of items to stack (H,e,l,l,o,...), later " closes it. Inside a loop, every item of the stack is printed until its empty.

Other Hello World!

"89"*_!"ello World!/"[!#]

Here, the / is purposefully eaten by [!#] that will ignore the last character

REPL (Read-Eval-Print Loop)

,&[#!]$^&

Here, input is asked with , and then & evals it. Later a [!#] prints everything, like in Hello, World!.

Cat program

,[#!]$^&

^& will repeat the program by eval-ing itself

Quine

^[#!]

Implementations

In Node.JS, by iovoid: https://gist.github.com/io4/c82798e6dfd918e37fe11f67283184a7