pos

/*
 * Returns the position of the scan pointer.  In the 'reset' position, this
 * value is zero.  In the 'terminated' position (i.e. the string is exhausted),
 * this value is the length of the string.
 *
 * In short, it's a 0-based index into the string.
 *
 *   s = StringScanner.new('test string')
 *   s.pos               # -> 0
 *   s.scan_until /str/  # -> "test str"
 *   s.pos               # -> 8
 *   s.terminate         # -> #<StringScanner fin>
 *   s.pos               # -> 11
 */
static VALUE
strscan_get_pos(VALUE self)
{
    struct strscanner *p;

    GET_SCANNER(self, p);
    return INT2FIX(p->curr);
}