svoid tok_stages(LS tok) {
  // anonymous stage (name = shortened source code)

  replaceKeywordBlock(tok, "stage", "{ stage(r {", "}); }");
  
  // named stage
  
  replaceKeywordPlusQuotedBlock_dyn(tok, "stage", (_tok, iKeyword)
    -> stringArray("{ stage(" + tok.get(iKeyword+2) + ", r {", "}); }"));
}