int match_bracket(buffer *b) {
int64_t match_line, match_pos;
const int rc = find_matching_bracket(b, 0, b->num_lines-1, &match_line, &match_pos, NULL, NULL);
if (rc == OK) {
goto_line_pos(b, match_line, match_pos);
return OK;
}
return rc;
}
void run(char *program) {
char *p;
char mem[MEMORY_SIZE];
char *m;
char c;
// set cells to zero
bzero(mem, sizeof(mem));
// instruction pointer
p = program;
// memory pointer
m = mem;
// current instruction
c = *p;
// Reads to end of string.
while( c != '\0' ) {
switch(c) {
case '>':
m++;
break;
case '<':
m--;
break;
case '+':
(*m)++;
break;
case '-':
(*m)--;
break;
case '.':
fputc(*m, stdout);
break;
case ',':
(*m) = getc(stdin);
break;
case '[':
if( (*m) == 0 ) {
p = find_matching_bracket(p, '[');
}
break;
case ']':
if( (*m) != 0 ) {
p = find_matching_bracket(p, ']');
}
break;
default:
break;
}
// move instruction pointer forward
c = *(++p);
}
}