static Set<S> findFunctionDefs_keywords = new HashSet(splitAtSpace("static svoid ssvoid ssynchronized sbool sS sO sL"));

static L<S> findFunctionDefs(L<S> tok) {
  int n = l(tok);
  new L<S> functions;
  for (int i = 1; i < n; i += 2) {
    S t = tok.get(i);
    if (findFunctionDefs_keywords.contains(t)) {
      int j = i+2;
      while (j < n && !eqOneOf(tok.get(j), ";", "=", "(", "{", "#"))
        j += 2;
      if (isIdentifier(tok.get(j-2)) &&
        eqGet(tok, j, "(") || eqGet(tok, j, "{") && eq(t, "svoid"))
        functions.add(tok.get(j-2));
    }
  }
  ret functions;
}