diff options
Diffstat (limited to 'vernac')
| -rw-r--r-- | vernac/metasyntax.ml | 142 |
1 files changed, 70 insertions, 72 deletions
diff --git a/vernac/metasyntax.ml b/vernac/metasyntax.ml index c0974d0a7..76c5dc1be 100644 --- a/vernac/metasyntax.ml +++ b/vernac/metasyntax.ml @@ -705,16 +705,22 @@ let recompute_assoc typs = (**************************************************************************) (* Registration of syntax extensions (parsing/printing, no interpretation)*) -let pr_arg_level from = function +let pr_arg_level from (lev,typ) = + let pplev = match lev with | (n,L) when Int.equal n from -> str "at next level" | (n,E) -> str "at level " ++ int n | (n,L) -> str "at level below " ++ int n | (n,Prec m) when Int.equal m n -> str "at level " ++ int n - | (n,_) -> str "Unknown level" - -let pr_level ntn (from,args) = + | (n,_) -> str "Unknown level" in + let pptyp = match typ with + | NtnInternTypeConstr -> mt () + | NtnInternTypeBinder -> str " " ++ surround (str "binder") + | NtnInternTypeIdent -> str " " ++ surround (str "ident") in + pplev ++ pptyp + +let pr_level ntn (from,args,typs) = str "at level " ++ int from ++ spc () ++ str "with arguments" ++ spc() ++ - prlist_with_sep pr_comma (pr_arg_level from) args + prlist_with_sep pr_comma (pr_arg_level from) (List.combine args typs) let error_incompatible_level ntn oldprec prec = user_err @@ -736,12 +742,12 @@ let is_active_compat = function | None -> true | Some v -> 0 <= Flags.version_compare v !Flags.compat_version -type syntax_extension_obj = locality_flag * syntax_extension list +type syntax_extension_obj = locality_flag * syntax_extension let cache_one_syntax_extension se = let ntn = se.synext_notation in let prec = se.synext_level in - let onlyprint = se.synext_notgram.notgram_onlyprinting in + let onlyprint = fst se.synext_notgram in try let oldprec = Notation.level_of_notation ntn in if not (Notation.level_eq prec oldprec) then error_incompatible_level ntn oldprec prec @@ -750,25 +756,24 @@ let cache_one_syntax_extension se = (* Reserve the notation level *) Notation.declare_notation_level ntn prec; (* Declare the parsing rule *) - if not onlyprint then Egramcoq.extend_constr_grammar prec se.synext_notgram; + if not onlyprint then List.iter Egramcoq.extend_constr_grammar (snd se.synext_notgram); (* Declare the notation rule *) Notation.declare_notation_rule ntn - ~extra:se.synext_extra (se.synext_unparsing, fst prec) se.synext_notgram + ~extra:se.synext_extra (se.synext_unparsing, pi1 prec) se.synext_notgram end let cache_syntax_extension (_, (_, sy)) = - List.iter cache_one_syntax_extension sy + cache_one_syntax_extension sy let subst_parsing_rule subst x = x let subst_printing_rule subst x = x let subst_syntax_extension (subst, (local, sy)) = - let map sy = { sy with - synext_notgram = subst_parsing_rule subst sy.synext_notgram; + (local, { sy with + synext_notgram = (fst sy.synext_notgram, List.map (subst_parsing_rule subst) (snd sy.synext_notgram)); synext_unparsing = subst_printing_rule subst sy.synext_unparsing; - } in - (local, List.map map sy) + }) let classify_syntax_definition (local, _ as o) = if local then Dispose else Substitute o @@ -1091,8 +1096,10 @@ module SynData = struct (* Notation data for parsing *) level : int; - syntax_data : (Id.t * (production_level, production_position) constr_entry_key_gen) list * (* typs *) - symbol list; (* symbols *) + pa_syntax_data : (Id.t * (production_level, production_position) constr_entry_key_gen) list * (* typs *) + symbol list; (* symbols *) + pp_syntax_data : (Id.t * (production_level, production_position) constr_entry_key_gen) list * (* typs *) + symbol list; (* symbols *) not_data : notation * (* notation *) (int * parenRelation) list * (* precedence *) bool; (* needs_squash *) @@ -1100,6 +1107,18 @@ module SynData = struct end +let find_subentry_types n assoc etyps symbols = + let innerlevel = NumLevel 200 in + let typs = + find_symbols + (NumLevel n,BorderProd(Left,assoc)) + (innerlevel,InternalProd) + (NumLevel n,BorderProd(Right,assoc)) + symbols in + let sy_typs = List.map (set_entry_type etyps) typs in + let prec = List.map (assoc_of_type n) sy_typs in + sy_typs, prec + let compute_syntax_data df modifiers = let open SynData in let open NotationMods in @@ -1115,26 +1134,23 @@ let compute_syntax_data df modifiers = (* Notations for interp and grammar *) let ntn_for_interp = make_notation_key symbols in - let symbols' = remove_curly_brackets symbols in - let ntn_for_grammar = make_notation_key symbols' in - if not onlyprint then check_rule_productivity symbols'; - - (* Misc *) - let need_squash = not (List.equal Notation.symbol_eq symbols symbols') in - let msgs,n = find_precedence mods.level mods.etyps symbols' in - let innerlevel = NumLevel 200 in - let typs = - find_symbols - (NumLevel n,BorderProd(Left,assoc)) - (innerlevel,InternalProd) - (NumLevel n,BorderProd(Right,assoc)) - symbols' in + let symbols_for_grammar = remove_curly_brackets symbols in + let need_squash = not (List.equal Notation.symbol_eq symbols symbols_for_grammar) in + let ntn_for_grammar = if need_squash then make_notation_key symbols_for_grammar else ntn_for_interp in + if not onlyprint then check_rule_productivity symbols_for_grammar; + let msgs,n = find_precedence mods.level mods.etyps symbols in (* To globalize... *) let etyps = join_auxiliary_recursive_types recvars mods.etyps in - let sy_typs = List.map (set_entry_type etyps) typs in - let prec = List.map (assoc_of_type n) sy_typs in + let sy_typs, prec = + find_subentry_types n assoc etyps symbols in + let sy_typs_for_grammar, prec_for_grammar = + if need_squash then + find_subentry_types n assoc etyps symbols_for_grammar + else + sy_typs, prec in let i_typs = set_internalization_type sy_typs in - let sy_data = (sy_typs,symbols') in + let pa_sy_data = (sy_typs_for_grammar,symbols_for_grammar) in + let pp_sy_data = (sy_typs,symbols) in let sy_fulldata = (ntn_for_grammar,prec,need_squash) in let df' = ((Lib.library_dp(),Lib.current_dirpath true),df) in let i_data = ntn_for_interp, df' in @@ -1155,7 +1171,8 @@ let compute_syntax_data df modifiers = intern_typs = i_typs; level = n; - syntax_data = sy_data; + pa_syntax_data = pa_sy_data; + pp_syntax_data = pp_sy_data; not_data = sy_fulldata; } @@ -1236,22 +1253,6 @@ let with_syntax_protection f x = (**********************************************************************) (* Recovering existing syntax *) -let contract_notation ntn = - if String.equal ntn "{ _ }" then ntn else - let rec aux ntn i = - if i <= String.length ntn - 5 then - let ntn' = - if String.is_sub "{ _ }" ntn i && - (i = 0 || ntn.[i-1] = ' ') && - (i = String.length ntn - 5 || ntn.[i+5] = ' ') - then - String.sub ntn 0 i ^ "_" ^ - String.sub ntn (i+5) (String.length ntn -i-5) - else ntn in - aux ntn' (i+1) - else ntn in - aux ntn 0 - exception NoSyntaxRule let recover_syntax ntn = @@ -1272,28 +1273,30 @@ let recover_syntax ntn = let recover_squash_syntax sy = let sq = recover_syntax "{ _ }" in - [sy; sq] + sy :: snd (sq.synext_notgram) -let recover_notation_syntax rawntn = - let ntn = contract_notation rawntn in +let recover_notation_syntax ntn = let sy = recover_syntax ntn in - let need_squash = not (String.equal ntn rawntn) in - let rules = if need_squash then recover_squash_syntax sy else [sy] in - sy.synext_notgram.notgram_typs, rules, sy.synext_notgram.notgram_onlyprinting + let onlyprint,_ = sy.synext_notgram in + pi3 sy.synext_level, sy, onlyprint (**********************************************************************) (* Main entry point for building parsing and printing rules *) -let make_pa_rule i_typs level (typs,symbols) ntn onlyprint = +let make_pa_rule i_typs level (typs,symbols) ntn need_squash = let assoc = recompute_assoc typs in let prod = make_production typs symbols in - { notgram_level = level; + let sy = { + notgram_level = level; notgram_assoc = assoc; notgram_notation = ntn; notgram_prods = prod; notgram_typs = i_typs; - notgram_onlyprinting = onlyprint; - } + } in + (* By construction, the rule for "{ _ }" is declared, but we need to + redeclare it because the file where it is declared needs not be open + when the current file opens (especially in presence of -nois) *) + if need_squash then recover_squash_syntax sy else [sy] let make_pp_rule level (typs,symbols) fmt = match fmt with @@ -1302,21 +1305,16 @@ let make_pp_rule level (typs,symbols) fmt = (* let make_syntax_rules i_typs (ntn,prec,need_squash) sy_data fmt extra onlyprint compat = *) let make_syntax_rules (sd : SynData.syn_data) = let open SynData in - let ntn, prec, need_squash = sd.not_data in - let pa_rule = make_pa_rule sd.intern_typs sd.level sd.syntax_data ntn sd.only_printing in - let pp_rule = make_pp_rule sd.level sd.syntax_data sd.format in - let sy = { - synext_level = (sd.level, prec); - synext_notation = ntn; - synext_notgram = pa_rule; + let ntn_for_grammar, prec, need_squash = sd.not_data in + let pa_rule = make_pa_rule sd.intern_typs sd.level sd.pa_syntax_data ntn_for_grammar need_squash in + let pp_rule = make_pp_rule sd.level sd.pp_syntax_data sd.format in { + synext_level = (sd.level, prec, sd.intern_typs); + synext_notation = fst sd.info; + synext_notgram = (sd.only_printing,pa_rule); synext_unparsing = pp_rule; synext_extra = sd.extra; synext_compat = sd.compat; - } in - (* By construction, the rule for "{ _ }" is declared, but we need to - redeclare it because the file where it is declared needs not be open - when the current file opens (especially in presence of -nois) *) - if need_squash then recover_squash_syntax sy else [sy] + } (**********************************************************************) (* Main functions about notations *) |