#!/bin/sh

TEMP="`mktemp`.c"

echo 'int main () {' \
>  $TEMP

echo -n 'unsigned char *ptr = malloc(sizeof(unsigned char) * ' \
>> $TEMP

cat $1 \
| grep -oe '\(<\|>\)' \
| awk 'BEGIN { count = 0 ; tot = 0; } />/ { count += 1; } /</ { if (count > tot) tot = count; count -= 1 } END { print tot }' \
>> $TEMP

echo ');' \
>> $TEMP

cat $1 \
| grep -oe '\(+\|-\|<\|>\|\.\|\,\|\[\|\]\)' \
| sed 's|+|++*ptr;\n|g' \
| sed 's|-|--*ptr;\n|g' \
| sed 's|>|++ptr;\n|g' \
| sed 's|<|--ptr;\n|g' \
| sed 's|\.|putchar(*ptr);\n|g' \
| sed 's|,|*ptr = getchar();\n|g' \
| sed 's|\[|while (*ptr) {\n|g' \
| sed 's|\]|}\n|g' \
>> $TEMP

echo '}' \
>> $TEMP

gcc $TEMP -o $2
rm -f $TEMP