JohnathonNow / PonML

A Python to Minilang transpiler

PonML

A Python to Minilang transpiler

Meant as an April Fools joke, takes Python and turns it into an equivalent minilang script.

Early work in progress.

Functionality

Currently supports:

• Variables
• For loops
• Lists and maps
• Many operators
• Functions
• Function calls
• Strings, ints, and floats
• Imports
• try.. except...
• fStrings
• More operators (booleans, comparisons)
• Conditionals

Planned to support:

• While loops

No support planned:

• Classes
• Methods

Examples

Imports

import x
import y.x
from y import x
from .y import x
from ..y import x

becomes

fun range(i, j, k) do if k then (i ..< j by k) else (i ..< j) end end
import: x("x.mini")
import: x("y/x.mini")
import: x("y/x.mini")
import: x("./y/x.mini")
import: x("../y/x.mini")

Notice that it inserts a range function - this is for compatibility with python, as range is just a function. It could dynamically determine whether to include any compatibility functions, but right now it does not.

Functions

def test(a, b, c):
    return a + b + c

test(1, 2, 3)
test('a', 'b', 'c')

becomes

fun range(i, j, k) do if k then (i ..< j by k) else (i ..< j) end end
fun test(a, b, c) do
ret ((a + b) + c)
end
(test(1, 2, 3))
(test('a', 'b', 'c'))

Notice that all expressions are wrapped with parens. This is to ensure python's order of operations is preserved.

More Stuff

x = 10
for i in range(1, 10):
    print(i * x)
x = 20
print(x ** 2)

becomes

fun range(i, j, k) do if k then (i ..< j by k) else (i ..< j) end end
var x := 10
for i in (range(1, 10)) do
(print((i * x)))
end
x := 20
(print((x ^ 2)))

References

Python AST
Minilang Docs