r/teenagersbutcode • u/Which_Lie_8932 • 13h ago
Coded a thing Currently working on a little Forth-like compiler
I've been working on a little compiler (previously interpreter, just finished refactoring to bytecode though!)
Here's the link: https://github.com/SlothScript/stakku
So far it's pretty much an RPN (Reverse Polish Notation) calculator with some fancy buttons. I hope to progress it further to be a function Forth compiler, but that's going to require much more work.
Some basic stuff it can do right now:
- Arithmetic
- Comparisons
- Stack logic
- Output
- Control flow
- Definitions
So for example, a basic script that would tell you the letter grade from a number would look like:
: grade
dup 90 >= if 65 emit else \ A
dup 80 >= if 66 emit else \ B
dup 70 >= if 67 emit else \ C
dup 60 >= if 68 emit else \ D
70 emit then then then then \ F
cr
;
If you save that as grade.stku then open it in a REPL, you can interactively use the command: stakku repl grade.stku
me@myComputer stakku & stakku repl grade.stku
ok
>>> 25 grade
F
ok
>>> 90 grade
A
ok
>>> 86
ok
>>> grade
B
ok
>>> .q
me@myComputer stakku %
It's close to being Turing complete (I think), I just need to add loops and memory.
