src/Pure/Syntax/syntax.ML
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child 6167 2f354020efc3
permissions -rw-r--r--
Object logic specific operations.
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(*  Title:      Pure/Syntax/syntax.ML
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    ID:         $Id$
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    Author:     Tobias Nipkow and Markus Wenzel, TU Muenchen
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Root of Isabelle's syntax module.
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*)
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signature BASIC_SYNTAX =
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sig
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  include AST0
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  include SYN_TRANS0
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  include MIXFIX0
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  include PRINTER0
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end;
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signature SYNTAX =
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sig
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  include AST1
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  include LEXICON0
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  include SYN_EXT0
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  include TYPE_EXT0
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  include SYN_TRANS1
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  include MIXFIX1
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  include PRINTER0
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  datatype 'a trrule =
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    ParseRule of 'a * 'a |
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    PrintRule of 'a * 'a |
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    ParsePrintRule of 'a * 'a
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  type syntax
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  val extend_log_types: syntax -> string list -> syntax
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  val extend_type_gram: syntax -> (string * int * mixfix) list -> syntax
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  val extend_const_gram: syntax -> string * bool -> (string * typ * mixfix) list -> syntax
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  val extend_consts: syntax -> string list -> syntax
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  val extend_trfuns: syntax ->
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    (string * (ast list -> ast)) list *
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    (string * (term list -> term)) list *
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    (string * (term list -> term)) list *
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    (string * (ast list -> ast)) list -> syntax
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  val extend_trfunsT: syntax -> (string * (bool -> typ -> term list -> term)) list -> syntax
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  val extend_tokentrfuns: syntax -> (string * string * (string -> string * int)) list -> syntax
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  val extend_trrules: syntax -> (string * string) trrule list -> syntax
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  val extend_trrules_i: syntax -> ast trrule list -> syntax
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  val map_trrule: ('a -> 'b) -> 'a trrule -> 'b trrule
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  val merge_syntaxes: syntax -> syntax -> syntax
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  val type_syn: syntax
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  val pure_syn: syntax
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  val print_gram: syntax -> unit
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  val print_trans: syntax -> unit
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  val print_syntax: syntax -> unit
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  val test_read: syntax -> string -> string -> unit
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  val read: syntax -> typ -> string -> term list
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  val read_typ: syntax -> ((indexname * sort) list -> indexname -> sort) -> string -> typ
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  val simple_read_typ: string -> typ
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  val pretty_term: syntax -> bool -> term -> Pretty.T
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  val pretty_typ: syntax -> typ -> Pretty.T
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  val pretty_sort: syntax -> sort -> Pretty.T
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  val simple_str_of_sort: sort -> string
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  val simple_string_of_typ: typ -> string
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  val simple_pprint_typ: typ -> pprint_args -> unit
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  val ambiguity_level: int ref
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end;
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structure Syntax : SYNTAX =
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struct
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(** tables of translation functions **)
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fun mk_trfun (c, f) = (c, (f, stamp ()));
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fun eq_trfuns ((c1:string, (_, s1:stamp)), (c2, (_, s2))) = c1 = c2 andalso s1 = s2;
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(* parse (ast) translations *)
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fun lookup_tr tab c = apsome fst (Symtab.lookup (tab, c));
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fun err_dup_trfuns name cs =
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  error ("More than one " ^ name ^ " for " ^ commas_quote cs);
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fun extend_trtab tab trfuns name =
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  Symtab.extend (tab, map mk_trfun trfuns)
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    handle Symtab.DUPS cs => err_dup_trfuns name cs;
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fun merge_trtabs tab1 tab2 name =
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  Symtab.merge eq_snd (tab1, tab2)
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    handle Symtab.DUPS cs => err_dup_trfuns name cs;
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(* print (ast) translations *)
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fun lookup_tr' tab c = map fst (Symtab.lookup_multi (tab, c));
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fun extend_tr'tab tab trfuns =
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  generic_extend eq_trfuns Symtab.dest_multi Symtab.make_multi tab (map mk_trfun trfuns);
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fun merge_tr'tabs tabs = generic_merge eq_trfuns Symtab.dest_multi Symtab.make_multi tabs;
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(** tables of token translation functions **)
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fun lookup_tokentr tabs modes =
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  let val trs = gen_distinct eq_fst (flat (map (assocs tabs) (modes @ [""])))
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  in fn c => apsome fst (assoc (trs, c)) end;
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fun merge_tokentrtabs tabs1 tabs2 =
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  let
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    fun eq_tr ((c1, (_, s1)), (c2, (_, s2))) = c1 = c2 andalso s1 = s2;
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    fun name (s, _) = implode (tl (Symbol.explode s));
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    fun merge mode =
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      let
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        val trs1 = assocs tabs1 mode;
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        val trs2 = assocs tabs2 mode;
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        val trs = gen_distinct eq_tr (trs1 @ trs2);
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      in
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        (case gen_duplicates eq_fst trs of
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          [] => (mode, trs)
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        | dups => error ("More than one token translation function in mode " ^
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            quote mode ^ " for " ^ commas_quote (map name dups)))
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      end;
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  in
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    map merge (distinct (map fst (tabs1 @ tabs2)))
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  end;
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fun extend_tokentrtab tabs tokentrs =
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  let
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    fun ins_tokentr (ts, (m, c, f)) =
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      overwrite (ts, (m, ("_" ^ c, (f, stamp ())) :: assocs ts m));
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  in
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    merge_tokentrtabs tabs (foldl ins_tokentr ([], tokentrs))
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  end;
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(** tables of translation rules **)
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type ruletab = (Ast.ast * Ast.ast) list Symtab.table;
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fun dest_ruletab tab = flat (map snd (Symtab.dest tab));
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(* lookup_ruletab *)
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fun lookup_ruletab tab =
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  if Symtab.is_empty tab then None
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  else Some (fn a => Symtab.lookup_multi (tab, a));
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(* empty, extend, merge ruletabs *)
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fun extend_ruletab tab rules =
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  generic_extend (op =) Symtab.dest_multi Symtab.make_multi tab
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    (map (fn r => (Ast.head_of_rule r, r)) (distinct rules));
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fun merge_ruletabs tab1 tab2 =
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  generic_merge (op =) Symtab.dest_multi Symtab.make_multi tab1 tab2;
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(** datatype syntax **)
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datatype syntax =
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  Syntax of {
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    lexicon: Scan.lexicon,
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    logtypes: string list,
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    gram: Parser.gram,
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    consts: string list,
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    prmodes: string list,
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    parse_ast_trtab: ((Ast.ast list -> Ast.ast) * stamp) Symtab.table,
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    parse_ruletab: ruletab,
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    parse_trtab: ((term list -> term) * stamp) Symtab.table,
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    print_trtab: ((bool -> typ -> term list -> term) * stamp) list Symtab.table,
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    print_ruletab: ruletab,
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    print_ast_trtab: ((Ast.ast list -> Ast.ast) * stamp) list Symtab.table,
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    tokentrtab: (string * (string * ((string -> string * int) * stamp)) list) list,
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    prtabs: Printer.prtabs}
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(* empty_syntax *)
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val empty_syntax =
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  Syntax {
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    lexicon = Scan.empty_lexicon,
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    logtypes = [],
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    gram = Parser.empty_gram,
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    consts = [],
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    prmodes = [],
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    parse_ast_trtab = Symtab.empty,
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    parse_ruletab = Symtab.empty,
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    parse_trtab = Symtab.empty,
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    print_trtab = Symtab.empty,
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    print_ruletab = Symtab.empty,
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    print_ast_trtab = Symtab.empty,
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    tokentrtab = [],
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    prtabs = Printer.empty_prtabs}
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(* extend_syntax *)
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fun extend_syntax (mode, inout) (Syntax tabs) syn_ext =
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  let
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    val {lexicon, logtypes = logtypes1, gram, consts = consts1, prmodes = prmodes1,
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      parse_ast_trtab, parse_ruletab, parse_trtab, print_trtab, print_ruletab,
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      print_ast_trtab, tokentrtab, prtabs} = tabs;
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    val SynExt.SynExt {logtypes = logtypes2, xprods, consts = consts2, prmodes = prmodes2,
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      parse_ast_translation, parse_rules, parse_translation, print_translation, print_rules,
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      print_ast_translation, token_translation} = syn_ext;
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  in
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    Syntax {
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      lexicon = if inout then Scan.extend_lexicon lexicon (SynExt.delims_of xprods) else lexicon,
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      logtypes = extend_list logtypes1 logtypes2,
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      gram = if inout then Parser.extend_gram gram xprods else gram,
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      consts = consts2 union consts1,
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      prmodes = (mode ins prmodes2) union prmodes1,
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      parse_ast_trtab =
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        extend_trtab parse_ast_trtab parse_ast_translation "parse ast translation",
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      parse_ruletab = extend_ruletab parse_ruletab parse_rules,
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      parse_trtab = extend_trtab parse_trtab parse_translation "parse translation",
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      print_trtab = extend_tr'tab print_trtab print_translation,
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      print_ruletab = extend_ruletab print_ruletab print_rules,
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      print_ast_trtab = extend_tr'tab print_ast_trtab print_ast_translation,
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      tokentrtab = extend_tokentrtab tokentrtab token_translation,
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      prtabs = Printer.extend_prtabs prtabs mode xprods}
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  end;
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(* merge_syntaxes *)
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fun merge_syntaxes (Syntax tabs1) (Syntax tabs2) =
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  let
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    val {lexicon = lexicon1, logtypes = logtypes1, gram = gram1, consts = consts1,
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      prmodes = prmodes1, parse_ast_trtab = parse_ast_trtab1, parse_ruletab = parse_ruletab1,
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      parse_trtab = parse_trtab1, print_trtab = print_trtab1,
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      print_ruletab = print_ruletab1, print_ast_trtab = print_ast_trtab1,
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      tokentrtab = tokentrtab1, prtabs = prtabs1} = tabs1;
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    val {lexicon = lexicon2, logtypes = logtypes2, gram = gram2, consts = consts2,
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      prmodes = prmodes2, parse_ast_trtab = parse_ast_trtab2, parse_ruletab = parse_ruletab2,
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      parse_trtab = parse_trtab2, print_trtab = print_trtab2,
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      print_ruletab = print_ruletab2, print_ast_trtab = print_ast_trtab2,
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      tokentrtab = tokentrtab2, prtabs = prtabs2} = tabs2;
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  in
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    Syntax {
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      lexicon = Scan.merge_lexicons lexicon1 lexicon2,
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      logtypes = merge_lists logtypes1 logtypes2,
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      gram = Parser.merge_grams gram1 gram2,
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      consts = merge_lists consts1 consts2,
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      prmodes = merge_lists prmodes1 prmodes2,
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      parse_ast_trtab =
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        merge_trtabs parse_ast_trtab1 parse_ast_trtab2 "parse ast translation",
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      parse_ruletab = merge_ruletabs parse_ruletab1 parse_ruletab2,
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      parse_trtab = merge_trtabs parse_trtab1 parse_trtab2 "parse translation",
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      print_trtab = merge_tr'tabs print_trtab1 print_trtab2,
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      print_ruletab = merge_ruletabs print_ruletab1 print_ruletab2,
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      print_ast_trtab = merge_tr'tabs print_ast_trtab1 print_ast_trtab2,
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      tokentrtab = merge_tokentrtabs tokentrtab1 tokentrtab2,
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      prtabs = Printer.merge_prtabs prtabs1 prtabs2}
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  end;
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(* type_syn *)
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val type_syn = extend_syntax ("", true) empty_syntax TypeExt.type_ext;
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val pure_syn = extend_syntax ("", true) type_syn SynExt.pure_ext;
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(** inspect syntax **)
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fun pretty_strs_qs name strs =
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  Pretty.strs (name :: map quote (sort_strings strs));
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(* print_gram *)
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fun print_gram (Syntax tabs) =
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  let
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    val {lexicon, logtypes, prmodes, gram, prtabs, ...} = tabs;
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    val prmodes' = sort_strings (filter_out (equal "") prmodes);
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  in
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    Pretty.writeln (pretty_strs_qs "lexicon:" (map implode (Scan.dest_lexicon lexicon)));
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    Pretty.writeln (Pretty.strs ("logtypes:" :: logtypes));
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    Pretty.writeln (Pretty.big_list "prods:" (Parser.pretty_gram gram));
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    Pretty.writeln (pretty_strs_qs "print modes:" prmodes')
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  end;
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(* print_trans *)
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fun print_trans (Syntax tabs) =
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  let
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    fun pretty_trtab name tab =
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      pretty_strs_qs name (Symtab.keys tab);
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    fun pretty_ruletab name tab =
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      Pretty.big_list name (map Ast.pretty_rule (dest_ruletab tab));
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    fun pretty_tokentr (mode, trs) = Pretty.strs (quote mode ^ ":" :: map fst trs);
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    val {consts, parse_ast_trtab, parse_ruletab, parse_trtab, print_trtab,
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      print_ruletab, print_ast_trtab, tokentrtab, ...} = tabs;
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  in
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    Pretty.writeln (pretty_strs_qs "consts:" consts);
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    Pretty.writeln (pretty_trtab "parse_ast_translation:" parse_ast_trtab);
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    Pretty.writeln (pretty_ruletab "parse_rules:" parse_ruletab);
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    Pretty.writeln (pretty_trtab "parse_translation:" parse_trtab);
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    Pretty.writeln (pretty_trtab "print_translation:" print_trtab);
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   310
    Pretty.writeln (pretty_ruletab "print_rules:" print_ruletab);
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   311
    Pretty.writeln (pretty_trtab "print_ast_translation:" print_ast_trtab);
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   312
    Pretty.writeln (Pretty.big_list "token_translation:" (map pretty_tokentr tokentrtab))
0
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   313
  end;
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parents:
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   314
a5a9c433f639 Initial revision
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parents:
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   315
a5a9c433f639 Initial revision
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parents:
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   316
(* print_syntax *)
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   317
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
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   318
fun print_syntax syn = (print_gram syn; print_trans syn);
0
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parents:
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   319
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   320
a5a9c433f639 Initial revision
clasohm
parents:
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   321
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
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parents: 175
diff changeset
   322
(** read **)
18
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parents: 0
diff changeset
   323
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
wenzelm
parents: 175
diff changeset
   324
(* test_read *)
18
c9ec452ff08f lots of internal cleaning and tuning;
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parents: 0
diff changeset
   325
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
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parents: 175
diff changeset
   326
fun test_read (Syntax tabs) root str =
18
c9ec452ff08f lots of internal cleaning and tuning;
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parents: 0
diff changeset
   327
  let
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
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parents: 175
diff changeset
   328
    val {lexicon, gram, parse_ast_trtab, parse_ruletab, ...} = tabs;
18
c9ec452ff08f lots of internal cleaning and tuning;
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parents: 0
diff changeset
   329
4703
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diff changeset
   330
    val chars = Symbol.explode str;
5692
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   331
    val toks = Lexicon.tokenize lexicon false chars;
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   332
    val _ = writeln ("tokens: " ^ space_implode " " (map Lexicon.display_token toks));
18
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   333
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   334
    fun show_pt pt =
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parents: 330
diff changeset
   335
      let
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   336
        val raw_ast = SynTrans.pt_to_ast (K None) pt;
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   337
        val _ = writeln ("raw: " ^ Ast.str_of_ast raw_ast);
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   338
        val pre_ast = SynTrans.pt_to_ast (lookup_tr parse_ast_trtab) pt;
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   339
        val _ = Ast.normalize true true (lookup_ruletab parse_ruletab) pre_ast;
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
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diff changeset
   340
      in () end;
5692
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   341
  in seq show_pt (Parser.parse gram root toks) end;
18
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parents: 0
diff changeset
   342
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   343
260
967813b8a7bf added simple_string_of_typ, simple_pprint_typ;
wenzelm
parents: 237
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   344
(* read_ast *)
967813b8a7bf added simple_string_of_typ, simple_pprint_typ;
wenzelm
parents: 237
diff changeset
   345
882
b118d1ea0dfd moved ambiguity_level from sign.ML to Syntax/syntax.ML
clasohm
parents: 865
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   346
val ambiguity_level = ref 1;
b118d1ea0dfd moved ambiguity_level from sign.ML to Syntax/syntax.ML
clasohm
parents: 865
diff changeset
   347
865
b38c67991122 added optional precedence for body of binder;
clasohm
parents: 764
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   348
fun read_asts (Syntax tabs) xids root str =
260
967813b8a7bf added simple_string_of_typ, simple_pprint_typ;
wenzelm
parents: 237
diff changeset
   349
  let
764
b60e77395d1a changed Pure's grammar and the way types are converted to nonterminals
clasohm
parents: 624
diff changeset
   350
    val {lexicon, gram, parse_ast_trtab, logtypes, ...} = tabs;
5692
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   351
    val root' = if root mem logtypes then SynExt.logic else root;
4703
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   352
    val chars = Symbol.explode str;
5692
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   353
    val pts = Parser.parse gram root' (Lexicon.tokenize lexicon xids chars);
330
2fda15dd1e0f changed the way a grammar is generated to allow the new parser to work;
clasohm
parents: 260
diff changeset
   354
3739
13f7107676a0 improved warning;
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parents: 3526
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   355
    fun show_pt pt =
5692
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   356
      warning (Pretty.string_of (Ast.pretty_ast (SynTrans.pt_to_ast (K None) pt)));
260
967813b8a7bf added simple_string_of_typ, simple_pprint_typ;
wenzelm
parents: 237
diff changeset
   357
  in
888
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
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   358
    if length pts > ! ambiguity_level then
1580
e3fd931e6095 Added some functions which allow redirection of Isabelle's output
berghofe
parents: 1511
diff changeset
   359
      (warning ("Ambiguous input " ^ quote str);
3526
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   360
       warning "produces the following parse trees:";
882
b118d1ea0dfd moved ambiguity_level from sign.ML to Syntax/syntax.ML
clasohm
parents: 865
diff changeset
   361
       seq show_pt pts)
624
33b9b5da3e6f made major changes to grammar;
clasohm
parents: 556
diff changeset
   362
    else ();
5692
2e873c5f0e2c no open;
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parents: 4887
diff changeset
   363
    map (SynTrans.pt_to_ast (lookup_tr parse_ast_trtab)) pts
260
967813b8a7bf added simple_string_of_typ, simple_pprint_typ;
wenzelm
parents: 237
diff changeset
   364
  end;
967813b8a7bf added simple_string_of_typ, simple_pprint_typ;
wenzelm
parents: 237
diff changeset
   365
967813b8a7bf added simple_string_of_typ, simple_pprint_typ;
wenzelm
parents: 237
diff changeset
   366
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
wenzelm
parents: 175
diff changeset
   367
(* read *)
0
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clasohm
parents:
diff changeset
   368
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
wenzelm
parents: 175
diff changeset
   369
fun read (syn as Syntax tabs) ty str =
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   370
  let
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
wenzelm
parents: 175
diff changeset
   371
    val {parse_ruletab, parse_trtab, ...} = tabs;
5692
2e873c5f0e2c no open;
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parents: 4887
diff changeset
   372
    val asts = read_asts syn false (SynExt.typ_to_nonterm ty) str;
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   373
  in
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   374
    map (SynTrans.ast_to_term (lookup_tr parse_trtab))
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   375
      (map (Ast.normalize_ast (lookup_ruletab parse_ruletab)) asts)
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   376
  end;
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   377
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   378
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
wenzelm
parents: 175
diff changeset
   379
(* read types *)
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   380
3779
ce8594f7e0c6 added pretty_sort;
wenzelm
parents: 3739
diff changeset
   381
fun read_typ syn get_sort str =
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   382
  (case read syn SynExt.typeT str of
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   383
    [t] => TypeExt.typ_of_term (get_sort (TypeExt.raw_term_sorts t)) t
2585
8b92caca102c adapted read_typ, simple_read_typ;
wenzelm
parents: 2504
diff changeset
   384
  | _ => error "read_typ: ambiguous type syntax");
144
0a0da273a6c5 added Syntax.read_typ;
wenzelm
parents: 47
diff changeset
   385
2585
8b92caca102c adapted read_typ, simple_read_typ;
wenzelm
parents: 2504
diff changeset
   386
fun simple_read_typ str =
8b92caca102c adapted read_typ, simple_read_typ;
wenzelm
parents: 2504
diff changeset
   387
  let fun get_sort env xi = if_none (assoc (env, xi)) [] in
3779
ce8594f7e0c6 added pretty_sort;
wenzelm
parents: 3739
diff changeset
   388
    read_typ type_syn get_sort str
2585
8b92caca102c adapted read_typ, simple_read_typ;
wenzelm
parents: 2504
diff changeset
   389
  end;
144
0a0da273a6c5 added Syntax.read_typ;
wenzelm
parents: 47
diff changeset
   390
0a0da273a6c5 added Syntax.read_typ;
wenzelm
parents: 47
diff changeset
   391
18
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   392
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   393
(** prepare translation rules **)
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   394
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   395
datatype 'a trrule =
3526
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   396
  ParseRule of 'a * 'a |
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   397
  PrintRule of 'a * 'a |
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   398
  ParsePrintRule of 'a * 'a;
888
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   399
4618
731bed12f762 export map_trrule;
wenzelm
parents: 4496
diff changeset
   400
fun map_trrule f (ParseRule (x, y)) = ParseRule (f x, f y)
731bed12f762 export map_trrule;
wenzelm
parents: 4496
diff changeset
   401
  | map_trrule f (PrintRule (x, y)) = PrintRule (f x, f y)
731bed12f762 export map_trrule;
wenzelm
parents: 4496
diff changeset
   402
  | map_trrule f (ParsePrintRule (x, y)) = ParsePrintRule (f x, f y);
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   403
3526
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   404
fun parse_rule (ParseRule pats) = Some pats
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   405
  | parse_rule (PrintRule _) = None
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   406
  | parse_rule (ParsePrintRule pats) = Some pats;
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   407
3526
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   408
fun print_rule (ParseRule _) = None
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   409
  | print_rule (PrintRule pats) = Some (swap pats)
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   410
  | print_rule (ParsePrintRule pats) = Some (swap pats);
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   411
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   412
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   413
fun check_rule (rule as (lhs, rhs)) =
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   414
  (case Ast.rule_error rule of
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   415
    Some msg =>
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   416
      error ("Error in syntax translation rule: " ^ msg ^ "\n" ^
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   417
        Ast.str_of_ast lhs ^ "  ->  " ^ Ast.str_of_ast rhs)
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   418
  | None => rule);
888
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   419
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   420
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   421
fun read_pattern syn (root, str) =
18
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   422
  let
237
a7d3e712767a MAJOR INTERNAL CHANGE: extend and merge operations of syntax tables
wenzelm
parents: 175
diff changeset
   423
    val Syntax {consts, ...} = syn;
18
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   424
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   425
    fun constify (ast as Ast.Constant _) = ast
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   426
      | constify (ast as Ast.Variable x) =
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   427
          if x mem consts orelse NameSpace.qualified x then Ast.Constant x
3830
7797327eca1d constify: qualified is const;
wenzelm
parents: 3782
diff changeset
   428
          else ast
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   429
      | constify (Ast.Appl asts) = Ast.Appl (map constify asts);
18
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   430
  in
888
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   431
    (case read_asts syn true root str of
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   432
      [ast] => constify ast
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   433
    | _ => error ("Syntactically ambiguous input: " ^ quote str))
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   434
  end handle ERROR =>
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   435
    error ("The error(s) above occurred in translation pattern " ^
3a1de9454d13 improved read_xrules: patterns no longer read twice;
wenzelm
parents: 882
diff changeset
   436
      quote str);
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   437
556
3f5f42467717 added type xrule (from sextension.ML);
wenzelm
parents: 383
diff changeset
   438
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   439
fun prep_rules rd_pat raw_rules =
4618
731bed12f762 export map_trrule;
wenzelm
parents: 4496
diff changeset
   440
  let val rules = map (map_trrule rd_pat) raw_rules in
3526
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   441
    (map check_rule (mapfilter parse_rule rules),
df4d0dad2b4e tuned warning;
wenzelm
parents: 2913
diff changeset
   442
      map check_rule (mapfilter print_rule rules))
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   443
  end
18
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   444
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   445
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   446
3779
ce8594f7e0c6 added pretty_sort;
wenzelm
parents: 3739
diff changeset
   447
(** pretty terms, typs, sorts **)
18
c9ec452ff08f lots of internal cleaning and tuning;
wenzelm
parents: 0
diff changeset
   448
3779
ce8594f7e0c6 added pretty_sort;
wenzelm
parents: 3739
diff changeset
   449
fun pretty_t t_to_ast prt_t (syn as Syntax tabs) curried t =
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   450
  let
2700
80e6b48c5204 added token translation support;
wenzelm
parents: 2585
diff changeset
   451
    val {print_trtab, print_ruletab, print_ast_trtab, tokentrtab, prtabs, ...} = tabs;
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   452
    val ast = t_to_ast (lookup_tr' print_trtab) t;
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   453
  in
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   454
    prt_t curried prtabs (lookup_tr' print_ast_trtab)
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   455
      (lookup_tokentr tokentrtab (! Printer.print_mode))
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   456
      (Ast.normalize_ast (lookup_ruletab print_ruletab) ast)
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   457
  end;
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   458
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   459
val pretty_term = pretty_t Printer.term_to_ast Printer.pretty_term_ast;
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   460
fun pretty_typ syn = pretty_t Printer.typ_to_ast Printer.pretty_typ_ast syn false;
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   461
fun pretty_sort syn = pretty_t Printer.sort_to_ast Printer.pretty_typ_ast syn false;
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   462
3782
c1b4be0e77cb added simple_str_of_sort;
wenzelm
parents: 3779
diff changeset
   463
val simple_str_of_sort = Pretty.str_of o pretty_sort type_syn;
3779
ce8594f7e0c6 added pretty_sort;
wenzelm
parents: 3739
diff changeset
   464
val simple_string_of_typ = Pretty.string_of o (pretty_typ type_syn);
260
967813b8a7bf added simple_string_of_typ, simple_pprint_typ;
wenzelm
parents: 237
diff changeset
   465
val simple_pprint_typ = Pretty.pprint o Pretty.quote o (pretty_typ type_syn);
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   466
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   467
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   468
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   469
(** extend syntax (external interfaces) **)
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   470
2202
cc15a7bfbe12 extend_const_gram now supports multiple disjoint printer tables;
wenzelm
parents: 1813
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   471
fun ext_syntax mk_syn_ext prmode (syn as Syntax {logtypes, ...}) decls =
cc15a7bfbe12 extend_const_gram now supports multiple disjoint printer tables;
wenzelm
parents: 1813
diff changeset
   472
  extend_syntax prmode syn (mk_syn_ext logtypes decls);
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   473
167
128e122acc89 added (partial) extend_tables;
wenzelm
parents: 144
diff changeset
   474
764
b60e77395d1a changed Pure's grammar and the way types are converted to nonterminals
clasohm
parents: 624
diff changeset
   475
fun extend_log_types syn logtypes =
5692
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wenzelm
parents: 4887
diff changeset
   476
  extend_syntax ("", true) syn (SynExt.syn_ext_logtypes logtypes);
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   477
5692
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wenzelm
parents: 4887
diff changeset
   478
val extend_type_gram = ext_syntax Mixfix.syn_ext_types ("", true);
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   479
5692
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wenzelm
parents: 4887
diff changeset
   480
fun extend_const_gram syn prmode = ext_syntax Mixfix.syn_ext_consts prmode syn;
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   481
5692
2e873c5f0e2c no open;
wenzelm
parents: 4887
diff changeset
   482
val extend_consts = ext_syntax SynExt.syn_ext_const_names ("", true);
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   483
5692
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wenzelm
parents: 4887
diff changeset
   484
val extend_trfuns = ext_syntax SynExt.syn_ext_trfuns ("", true);
383
fcea89074e4c added incremental extension functions: extend_log_types, extend_type_gram,
wenzelm
parents: 330
diff changeset
   485
5692
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wenzelm
parents: 4887
diff changeset
   486
val extend_trfunsT = ext_syntax SynExt.syn_ext_trfunsT ("", true);
2383
4127499d9b52 added extend_trfunsT;
wenzelm
parents: 2366
diff changeset
   487
5692
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wenzelm
parents: 4887
diff changeset
   488
val extend_tokentrfuns = ext_syntax SynExt.syn_ext_tokentrfuns ("", true);
2700
80e6b48c5204 added token translation support;
wenzelm
parents: 2585
diff changeset
   489
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   490
fun extend_trrules syn rules =
5692
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wenzelm
parents: 4887
diff changeset
   491
  ext_syntax SynExt.syn_ext_rules ("", true) syn (prep_rules (read_pattern syn) rules);
1158
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   492
96804ce95516 added extend_trrules_i;
wenzelm
parents: 1147
diff changeset
   493
fun extend_trrules_i syn rules =
5692
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wenzelm
parents: 4887
diff changeset
   494
  ext_syntax SynExt.syn_ext_rules ("", true) syn (prep_rules I rules);
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wenzelm
parents: 4887
diff changeset
   495
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wenzelm
parents: 4887
diff changeset
   496
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wenzelm
parents: 4887
diff changeset
   497
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wenzelm
parents: 4887
diff changeset
   498
(** export parts of internal Syntax structures **)
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wenzelm
parents: 4887
diff changeset
   499
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wenzelm
parents: 4887
diff changeset
   500
open Lexicon SynExt Ast Parser TypeExt SynTrans Mixfix Printer;
2366
a163d2be1bb5 added chartrans;
wenzelm
parents: 2287
diff changeset
   501
a163d2be1bb5 added chartrans;
wenzelm
parents: 2287
diff changeset
   502
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   503
end;
5692
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wenzelm
parents: 4887
diff changeset
   504
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wenzelm
parents: 4887
diff changeset
   505
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wenzelm
parents: 4887
diff changeset
   506
structure BasicSyntax: BASIC_SYNTAX = Syntax;
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wenzelm
parents: 4887
diff changeset
   507
open BasicSyntax;