more thorough (potentially duplicate) markup, e.g. relevant for embedded Args syntax within antiquotations;

suppress short abbreviations more uniformly, for outer and quasi-outer syntax; tuned signature;

clarified init_assignable: make double-sure that initial values are reset; more systematic reports for Args.syntax: indicate Args.$$$ quasi-keywords and suppress confusing completion of single symbols like ":", "|", "?";

proper UTF-8;

fix typo

remove simp rules made redundant by the replacement of neg_numeral with negated numerals