random BF transpiler

rbf.sh

#!/usr/bin/env bash

cat > "$1.c" << EOF
#include <stdint.h>
#include <stdio.h>
#include <time.h>

int main(){
srand(time(NULL));
uint8_t t[65536] = {0};
uint16_t p = 0;
int i;
EOF

while read -n1 char; do
	case "$char" in
		\>) echo '++p;';;
		\<) echo '--p;';;
		\+) echo '++t[p];';;
		\-) echo '--t[p];';;
		\,) echo 'i=getchar(),t[p]=i*(i>0);';;
		\.) echo 'putchar(t[p]);';;
		\[) echo 'while(t[p]){';;
		\]) echo '}';;
        \?) echo 't[p]=rand();';;
	esac
done < "$1" >> "$1.c"

echo 'return 0;}' >> "$1.c"

cc -O3 -o "$1.out" "$1.c" && "./$1.out"