static LS tok_equalsCast(LS tok) {
  int i;
  SS bracketMap = getBracketMap(tok);
  while ((i = jfind(tok, "<id> <id> = cast")) >= 0) {
    int iCast = indexOf(tok, i, "=")+2;
    int j = scanToEndOfInitializer(tok, bracketMap, iCast);
    tok.set(iCast, "(" + $1 + ") (");
    tokPrepend(j+1, ")");
    reTok(tok, iCast, j+2);
  }
  ret tok;
}