,()

,() (a.k.a out-parens-comma) is an esolang invented by User:None1. Its name is inspired by (,) (a.k.a in-parens-comma), but it has nothing to do with it.

Commands

Command	Meaning
,	Input a number and store it in the accmulator
(	If the accumulator is zero, output the accumulator once and halt, otherwise output the accumulator infinitely
)	Output the program's source code and halt

Examples programs

Truth Machine

,(

More elaborate:

,()

Quine

)

Implementation

Python

code,x=input(),0
for i in code:
    if i==',':
        x=int(input())
    if i=='(':
        print(x)
        if not x:
            break
        while x:
            print(x)
    if i==')':
        print(code)
        break