wenzelm@5822
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(* Title: Pure/Isar/args.ML
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ID: $Id$
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Author: Markus Wenzel, TU Muenchen
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Parsing with implicit value assigment. Concrete argument syntax of
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wenzelm@27811
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attributes, methods etc.
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*)
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signature ARGS =
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sig
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type T = OuterLex.token
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type src
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val src: (string * T list) * Position.T -> src
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val dest_src: src -> (string * T list) * Position.T
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val pretty_src: Proof.context -> src -> Pretty.T
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val map_name: (string -> string) -> src -> src
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wenzelm@21480
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val morph_values: morphism -> src -> src
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wenzelm@20263
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val maxidx_values: src -> int -> int
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val assignable: src -> src
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val closure: src -> src
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val context: Context.generic * T list -> Context.proof * (Context.generic * T list)
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val theory: Context.generic * T list -> Context.theory * (Context.generic * T list)
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val $$$ : string -> T list -> string * T list
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val add: T list -> string * T list
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val del: T list -> string * T list
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val colon: T list -> string * T list
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val query: T list -> string * T list
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val bang: T list -> string * T list
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val query_colon: T list -> string * T list
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val bang_colon: T list -> string * T list
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wenzelm@8803
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val parens: (T list -> 'a * T list) -> T list -> 'a * T list
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wenzelm@10150
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val bracks: (T list -> 'a * T list) -> T list -> 'a * T list
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wenzelm@9809
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val mode: string -> 'a * T list -> bool * ('a * T list)
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wenzelm@15703
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val maybe: (T list -> 'a * T list) -> T list -> 'a option * T list
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val name_source: T list -> string * T list
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val name_source_position: T list -> (SymbolPos.text * Position.T) * T list
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val name: T list -> string * T list
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wenzelm@28078
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val binding: T list -> Name.binding * T list
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wenzelm@18037
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val alt_name: T list -> string * T list
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wenzelm@16140
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val symbol: T list -> string * T list
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wenzelm@17064
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val liberal_name: T list -> string * T list
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val var: T list -> indexname * T list
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wenzelm@21496
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val internal_text: T list -> string * T list
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val internal_typ: T list -> typ * T list
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val internal_term: T list -> term * T list
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val internal_fact: T list -> thm list * T list
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wenzelm@21662
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val internal_attribute: T list -> (morphism -> attribute) * T list
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val named_text: (string -> string) -> T list -> string * T list
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val named_typ: (string -> typ) -> T list -> typ * T list
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val named_term: (string -> term) -> T list -> term * T list
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val named_fact: (string -> thm list) -> T list -> thm list * T list
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val named_attribute: (string -> morphism -> attribute) -> T list ->
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(morphism -> attribute) * T list
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val typ_abbrev: Context.generic * T list -> typ * (Context.generic * T list)
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val typ: Context.generic * T list -> typ * (Context.generic * T list)
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val term: Context.generic * T list -> term * (Context.generic * T list)
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val term_abbrev: Context.generic * T list -> term * (Context.generic * T list)
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val prop: Context.generic * T list -> term * (Context.generic * T list)
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val tyname: Context.generic * T list -> string * (Context.generic * T list)
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val const: Context.generic * T list -> string * (Context.generic * T list)
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val const_proper: Context.generic * T list -> string * (Context.generic * T list)
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val bang_facts: Context.generic * T list -> thm list * (Context.generic * T list)
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val goal_spec: ((int -> tactic) -> tactic) -> ('a * T list)
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-> ((int -> tactic) -> tactic) * ('a * T list)
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val parse: OuterLex.token list -> T list * OuterLex.token list
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val parse1: (string -> bool) -> OuterLex.token list -> T list * OuterLex.token list
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val attribs: (string -> string) -> T list -> src list * T list
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val opt_attribs: (string -> string) -> T list -> src list * T list
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val thm_name: (string -> string) -> string -> T list -> (Name.binding * src list) * T list
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wenzelm@28078
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val opt_thm_name: (string -> string) -> string -> T list -> (Name.binding * src list) * T list
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haftmann@21879
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val syntax: string -> ('b * T list -> 'a * ('b * T list)) -> src -> 'b -> 'a * 'b
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wenzelm@18998
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val context_syntax: string -> (Context.generic * T list -> 'a * (Context.generic * T list)) ->
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src -> Proof.context -> 'a * Proof.context
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end;
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structure Args: ARGS =
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struct
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structure T = OuterLex;
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structure P = OuterParse;
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(** datatype src **)
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type T = T.token;
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datatype src = Src of (string * T list) * Position.T;
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val src = Src;
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fun dest_src (Src src) = src;
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fun pretty_src ctxt src =
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let
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val prt_thm = Pretty.backquote o ProofContext.pretty_thm ctxt;
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fun prt arg =
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(case T.get_value arg of
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SOME (T.Text s) => Pretty.str (quote s)
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| SOME (T.Typ T) => Syntax.pretty_typ ctxt T
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| SOME (T.Term t) => Syntax.pretty_term ctxt t
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| SOME (T.Fact ths) => Pretty.enclose "(" ")" (Pretty.breaks (map prt_thm ths))
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| _ => Pretty.str (T.unparse arg));
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val (s, args) = #1 (dest_src src);
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in Pretty.block (Pretty.breaks (Pretty.str s :: map prt args)) end;
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fun map_name f (Src ((s, args), pos)) = Src ((f s, args), pos);
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fun map_args f (Src ((s, args), pos)) = Src ((s, map f args), pos);
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(* values *)
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fun morph_values phi = map_args (T.map_value
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(fn T.Text s => T.Text s
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| T.Typ T => T.Typ (Morphism.typ phi T)
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| T.Term t => T.Term (Morphism.term phi t)
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| T.Fact ths => T.Fact (Morphism.fact phi ths)
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| T.Attribute att => T.Attribute (Morphism.transform phi att)));
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fun maxidx_values (Src ((_, args), _)) = args |> fold (fn arg =>
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(case T.get_value arg of
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SOME (T.Typ T) => Term.maxidx_typ T
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| SOME (T.Term t) => Term.maxidx_term t
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| SOME (T.Fact ths) => fold Thm.maxidx_thm ths
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| _ => I));
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val assignable = map_args T.assignable;
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val closure = map_args T.closure;
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(** argument scanners **)
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(* context *)
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fun context x = (Scan.state >> Context.proof_of) x;
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fun theory x = (Scan.state >> Context.theory_of) x;
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(* basic *)
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fun token atom = Scan.ahead P.not_eof --| atom;
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val ident = token
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(P.short_ident || P.long_ident || P.sym_ident || P.term_var ||
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P.type_ident || P.type_var || P.number);
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val string = token (P.string || P.verbatim);
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val alt_string = token P.alt_string;
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val symbolic = token P.keyword_ident_or_symbolic;
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fun $$$ x = (ident >> T.content_of || P.keyword)
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:|-- (fn y => if x = y then Scan.succeed x else Scan.fail);
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val named = ident || string;
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val add = $$$ "add";
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val del = $$$ "del";
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val colon = $$$ ":";
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val query = $$$ "?";
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val bang = $$$ "!";
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wenzelm@20111
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val query_colon = $$$ "?" ^^ $$$ ":";
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wenzelm@20111
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val bang_colon = $$$ "!" ^^ $$$ ":";
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wenzelm@10035
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wenzelm@8803
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fun parens scan = $$$ "(" |-- scan --| $$$ ")";
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wenzelm@10150
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fun bracks scan = $$$ "[" |-- scan --| $$$ "]";
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wenzelm@15703
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fun mode s = Scan.lift (Scan.optional (parens ($$$ s) >> K true) false);
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fun maybe scan = $$$ "_" >> K NONE || scan >> SOME;
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val name_source = named >> T.source_of;
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val name_source_position = named >> T.source_position_of;
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wenzelm@27811
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val name = named >> T.content_of;
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haftmann@28939
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val binding = P.position name >> Binding.binding_pos;
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val alt_name = alt_string >> T.content_of;
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val symbol = symbolic >> T.content_of;
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wenzelm@17064
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val liberal_name = symbol || name;
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val var = (ident >> T.content_of) :|-- (fn x =>
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(case Lexicon.read_variable x of SOME v => Scan.succeed v | NONE => Scan.fail));
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(* values *)
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fun value dest = Scan.some (fn arg =>
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(case T.get_value arg of SOME v => (SOME (dest v) handle Match => NONE) | NONE => NONE));
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fun evaluate mk eval arg =
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wenzelm@27819
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let val x = eval arg in (T.assign (SOME (mk x)) arg; x) end;
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wenzelm@27811
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val internal_text = value (fn T.Text s => s);
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wenzelm@27811
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val internal_typ = value (fn T.Typ T => T);
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wenzelm@27811
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val internal_term = value (fn T.Term t => t);
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wenzelm@27811
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val internal_fact = value (fn T.Fact ths => ths);
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wenzelm@27811
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val internal_attribute = value (fn T.Attribute att => att);
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wenzelm@15703
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wenzelm@27819
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fun named_text intern = internal_text || named >> evaluate T.Text (intern o T.content_of);
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wenzelm@27819
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fun named_typ readT = internal_typ || named >> evaluate T.Typ (readT o T.source_of);
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wenzelm@27819
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fun named_term read = internal_term || named >> evaluate T.Term (read o T.source_of);
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fun named_fact get = internal_fact || named >> evaluate T.Fact (get o T.content_of) ||
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alt_string >> evaluate T.Fact (get o T.source_of);
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fun named_attribute att = internal_attribute || named >> evaluate T.Attribute (att o T.content_of);
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(* terms and types *)
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val typ_abbrev = Scan.peek (named_typ o ProofContext.read_typ_abbrev o Context.proof_of);
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wenzelm@25331
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val typ = Scan.peek (named_typ o Syntax.read_typ o Context.proof_of);
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wenzelm@24508
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val term = Scan.peek (named_term o Syntax.read_term o Context.proof_of);
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wenzelm@21724
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val term_abbrev = Scan.peek (named_term o ProofContext.read_term_abbrev o Context.proof_of);
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wenzelm@24508
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val prop = Scan.peek (named_term o Syntax.read_prop o Context.proof_of);
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wenzelm@5878
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(* type and constant names *)
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wenzelm@25323
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val tyname = Scan.peek (named_typ o ProofContext.read_tyname o Context.proof_of)
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wenzelm@18998
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>> (fn Type (c, _) => c | TFree (a, _) => a | _ => "");
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wenzelm@7553
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wenzelm@25323
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val const = Scan.peek (named_term o ProofContext.read_const o Context.proof_of)
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wenzelm@18998
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>> (fn Const (c, _) => c | Free (x, _) => x | _ => "");
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wenzelm@25343
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val const_proper = Scan.peek (named_term o ProofContext.read_const_proper o Context.proof_of)
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>> (fn Const (c, _) => c | _ => "");
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(* improper method arguments *)
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wenzelm@15703
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wenzelm@18998
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val bang_facts = Scan.peek (fn context =>
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wenzelm@27811
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P.position ($$$ "!") >> (fn (_, pos) =>
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wenzelm@27811
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(warning ("use of prems in proof method" ^ Position.str_of pos);
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wenzelm@27811
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Assumption.prems_of (Context.proof_of context))) || Scan.succeed []);
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wenzelm@8233
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wenzelm@8536
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val from_to =
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wenzelm@27811
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P.nat -- ($$$ "-" |-- P.nat) >> (fn (i, j) => fn tac => Seq.INTERVAL tac i j) ||
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wenzelm@27811
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P.nat --| $$$ "-" >> (fn i => fn tac => fn st => Seq.INTERVAL tac i (Thm.nprems_of st) st) ||
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wenzelm@27811
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P.nat >> (fn i => fn tac => tac i) ||
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wenzelm@15703
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$$$ "!" >> K ALLGOALS;
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wenzelm@8536
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wenzelm@27811
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val goal = $$$ "[" |-- P.!!! (from_to --| $$$ "]");
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wenzelm@8536
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fun goal_spec def = Scan.lift (Scan.optional goal def);
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wenzelm@8233
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wenzelm@8233
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wenzelm@27811
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(* arguments within outer syntax *)
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wenzelm@5878
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wenzelm@27382
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fun parse_args is_symid =
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wenzelm@27382
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let
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wenzelm@27811
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val keyword_symid = token (P.keyword_with is_symid);
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wenzelm@27811
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fun atom blk = P.group "argument"
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wenzelm@27811
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(ident || keyword_symid || string || alt_string ||
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wenzelm@27811
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(if blk then token (P.$$$ ",") else Scan.fail));
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wenzelm@5878
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wenzelm@27382
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fun args blk x = Scan.optional (args1 blk) [] x
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wenzelm@27382
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and args1 blk x =
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wenzelm@27382
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((Scan.repeat1
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wenzelm@27382
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(Scan.repeat1 (atom blk) ||
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wenzelm@27382
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argsp "(" ")" ||
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wenzelm@27382
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argsp "[" "]")) >> flat) x
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wenzelm@27811
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and argsp l r x = (token (P.$$$ l) ::: P.!!! (args true @@@ (token (P.$$$ r) >> single))) x;
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wenzelm@27382
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in (args, args1) end;
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wenzelm@5822
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wenzelm@27811
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261 |
val parse = #1 (parse_args T.ident_or_symbolic) false;
|
wenzelm@27811
|
262 |
fun parse1 is_symid = #2 (parse_args is_symid) false;
|
wenzelm@5822
|
263 |
|
wenzelm@27811
|
264 |
|
wenzelm@27811
|
265 |
(* attributes *)
|
wenzelm@27382
|
266 |
|
wenzelm@15703
|
267 |
fun attribs intern =
|
wenzelm@15703
|
268 |
let
|
wenzelm@27819
|
269 |
val attrib_name = internal_text || (symbolic || named)
|
wenzelm@27819
|
270 |
>> evaluate T.Text (intern o T.content_of);
|
wenzelm@27811
|
271 |
val attrib = P.position (attrib_name -- P.!!! parse) >> src;
|
wenzelm@27811
|
272 |
in $$$ "[" |-- P.!!! (P.list attrib --| $$$ "]") end;
|
wenzelm@5822
|
273 |
|
wenzelm@15703
|
274 |
fun opt_attribs intern = Scan.optional (attribs intern) [];
|
wenzelm@5822
|
275 |
|
wenzelm@5878
|
276 |
|
wenzelm@27377
|
277 |
(* theorem specifications *)
|
wenzelm@27377
|
278 |
|
wenzelm@28078
|
279 |
fun thm_name intern s = binding -- opt_attribs intern --| $$$ s;
|
wenzelm@27811
|
280 |
|
wenzelm@27377
|
281 |
fun opt_thm_name intern s =
|
wenzelm@28078
|
282 |
Scan.optional
|
wenzelm@28078
|
283 |
((binding -- opt_attribs intern || attribs intern >> pair Name.no_binding) --| $$$ s)
|
wenzelm@28078
|
284 |
(Name.no_binding, []);
|
wenzelm@27377
|
285 |
|
wenzelm@27377
|
286 |
|
wenzelm@27382
|
287 |
|
wenzelm@27382
|
288 |
(** syntax wrapper **)
|
wenzelm@5822
|
289 |
|
wenzelm@8282
|
290 |
fun syntax kind scan (src as Src ((s, args), pos)) st =
|
wenzelm@27811
|
291 |
(case Scan.error (Scan.finite' T.stopper (Scan.option scan)) (st, args) of
|
haftmann@21879
|
292 |
(SOME x, (st', [])) => (x, st')
|
wenzelm@15703
|
293 |
| (_, (_, args')) =>
|
wenzelm@15703
|
294 |
error (kind ^ " " ^ quote s ^ Position.str_of pos ^ ": bad arguments\n " ^
|
wenzelm@27811
|
295 |
space_implode " " (map T.unparse args')));
|
wenzelm@5878
|
296 |
|
haftmann@21879
|
297 |
fun context_syntax kind scan src = apsnd Context.the_proof o syntax kind scan src o Context.Proof;
|
wenzelm@18998
|
298 |
|
wenzelm@5822
|
299 |
end;
|