Fuck-brain

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fuck-brain is a brainfuck derivative created by User:None1, it is the same as brainfuck with only the +,> and . command, and two consecutive commands have to be separated with line feed.

Accumulator

Fuck-brain has no < command, which means that the cells on the left of pointer are discarded, which means unlike brainfuck, fuck-brain actually uses an accumulator:

+ increases the accumulator.

> clears the accumulator.

. outputs the accumulator.

That means this esolang can be implemented with only O(1) space complexity.

Translation to Weeeeeeeeeeeeeeeeeeeeeeeeeeeeee

any fuck-brain code can be translated to Weeeeeeeeeeeeeeeeeeeeeeeeeeeeee since it is accumulator-based, but the opposite is not true. + in fuck-brain is

Infect person

> is

Bulk deinfect
Skip next if no one infected
Deinfect person

. is of course Check number of infections.

Example Programs

Print line feed

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Hello World

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.

Interpreters

C

#include<stdio.h>
int main(){
    char c,x=0;
    while((c=getchar())!=EOF){
        if(c=='+') x++;
        if(c=='.') putchar(x);
        if(c=='>') x=0;
        if(getchar()!='\n') return 1;
    }
    return 0;
}

Python

One-liner, works only with perfect code.

exec("x=0\n"+'\n'.join({"+":"x+=1",">":"x=0",".":"print(chr(x&255),end='')"}[i] for i in __import__("sys").stdin.read().strip().split("\n")))