sbool tok_doAsMethodName_strict = false;

// Strict mode:

// Sometimes you have to make sure to omit the space after "do"

//   do(...)

// as opposed to

//   do (bla+bla).something(); while ...;  << very unusual anyway

// Non-strict mode:

//   do (bla+bla).something(); while ...;

// is not possible anymore (but who does this?)

// You can use spaces however you like

static void tok_doAsMethodName(L<S> tok) {

  if (!tok.contains("do")) ret;

  for (int i = 1; i+2 < l(tok); i += 2) {

    S next = tok.get(i+2), prev = get(tok, i-2);

    if (tok.get(i).equals("do") && eq(next, "(")

      && (!tok_doAsMethodName_strict

        || eq(prev, ".") || empty(tok.get(i+1))))

      tok.set(i, "dO");

  }

}