Notation_gramtype grammar_constr_prod_item = | | GramConstrTerminal of bool * string | 
| | GramConstrNonTerminal of Extend.constr_prod_entry_key * Names.Id.t option | 
| | GramConstrListMark of int * bool * int | 
Grammar rules for a notation
type one_notation_grammar = {| notgram_level : Notation.level; | 
| notgram_assoc : Gramlib.Gramext.g_assoc option; | 
| notgram_notation : Constrexpr.notation; | 
| notgram_prods : grammar_constr_prod_item list list; | 
| notgram_typs : Extend.constr_entry_key list; | 
}type notation_grammar = one_notation_grammar list