Aback - a FORTH-like programming language

Aback is a FORTH-like programming language - it uses words as an instruction sequence and its data is stack-based. Here is an example of Aback:

main: /* define function main */
    " Hello, world! " print /* push Hello, world! to the stack, print it and drop it. */
;; /* end def */
main

0 $x
x dup /* push the value of x to the stack twice */
print /* print the first occurence */
1 + $x /* , and increase the other by one and push it back into x */
x print /* and finally show it to the screen */

Supported features

• Function definition
• Basic math operations (+, -, *, /)
• Comments
• Booleans
• Null
• Variables
• exit word
• Module import

Planned features

• Arrays
• If, while, for
• Python modules?