rem: return _must_expand;
add: _gen.output(cs); return errno() == errOK;
context: Type1OneMMRemover::run(const Type1Charstring &cs, bool do_expander){  _expander_gen.clear();  _main_gen.clear();  _in_expander = do_expander;  _subr_level = 0;  _must_expand = false;  init();    cs.run(*this);    return _must_expand;}