Abrvalg

Abrvalg is a Python-like programming language interpreter.

The project contains:

• Regular expression based lexer
• Top-down recursive descent parser
• AST-walking interpreter
• REPL

Abrvalg doesn't require any third-party libraries.

What the language looks like:

func map(arr, fn):
    r = []
    for val in arr:
        r = r + [fn(val)]
    r

func factorial(n):
    if n <= 1:
        1
    else:
        n * factorial(n - 1)

print(map(1...10, factorial))

You can find more examples in tests directory.

How to try it:

git clone https://github.com/akrylysov/abrvalg.git
cd abrvalg
python -m abrvalg tests/factorial.abr