bf.py

import sys
import os

filename = sys.argv[1]
c_code ='''
#include <stdlib.h>
#include <stdio.h>
int main(){
    int cell_size = 1000;
    char * ptr = (char*)(calloc(cell_size * sizeof(char), 0));
    %s
return 0;
}
'''

code_equivalance = {
    '+': '(*ptr)++;\n',
    '-': '(*ptr)--;\n',
    '>': 'ptr++;\n',
    '<': 'ptr--;\n',
    ',': '(*ptr) = getchar();\n',
    '.': 'putchar(*ptr);\n',
    '*': 'printf(\"%d\", (*(int*)(ptr)));\n',
    '!': 'printf("\\n");\n',
    '[': 'while(*ptr){\n',
    ']': '}\n',
    '@': "",
    '$': "",
    '^': "",
    '~': '(*(int*)(ptr)) = 0;\n',
    '(': 'if(*ptr){\n',
    ')': '}else{\n'
}


def loadbf(filename):
    data = ''
    with open(filename) as bffile:
        for line in bffile:
            data += line
    data = [character for character in data if character in code_equivalance.keys()]
    code=''
    for i in data:
        code+=i
    return code

symbols = loadbf(filename)

code = ''

print symbols

for symbol in symbols:
    code += code_equivalance[symbol]

c_code = c_code % code

with open("c_code.c", "w") as code_file:
    code_file.write(c_code)
	
os.system("gcc c_code.c -o bf")
os.system("rm c_code.c")