author | wenzelm |
Fri, 27 Jan 1995 13:40:07 +0100 | |
changeset 889 | e87c01fd0351 |
parent 865 | b38c67991122 |
child 1027 | 651637377289 |
permissions | -rw-r--r-- |
389 | 1 |
(* Title: Pure/Thy/thy_parse.ML |
2 |
ID: $Id$ |
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3 |
Author: Markus Wenzel, TU Muenchen |
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4 |
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5 |
The parser for theory files. |
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6 |
*) |
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7 |
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infix 5 -- --$$ $$-- ^^; |
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infix 3 >>; |
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infix 0 ||; |
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signature THY_PARSE = |
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sig |
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type token |
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val !! : ('a -> 'b * 'c) -> 'a -> 'b * 'c |
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val >> : ('a -> 'b * 'c) * ('b -> 'd) -> 'a -> 'd * 'c |
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val || : ('a -> 'b) * ('a -> 'b) -> 'a -> 'b |
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18 |
val -- : ('a -> 'b * 'c) * ('c -> 'd * 'e) -> 'a -> ('b * 'd) * 'e |
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val ^^ : ('a -> string * 'b) * ('b -> string * 'c) -> 'a -> string * 'c |
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val $$ : string -> token list -> string * token list |
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val $$-- : string * (token list -> 'b * 'c) -> token list -> 'b * 'c |
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val --$$ : ('a -> 'b * token list) * string -> 'a -> 'b * token list |
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val ident: token list -> string * token list |
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val long_ident: token list -> string * token list |
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val long_id: token list -> string * token list |
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val type_var: token list -> string * token list |
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636 | 27 |
val type_args: token list -> string list * token list |
389 | 28 |
val nat: token list -> string * token list |
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val string: token list -> string * token list |
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val verbatim: token list -> string * token list |
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val empty: 'a -> 'b list * 'a |
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val optional: ('a -> 'b * 'a) -> 'b -> 'a -> 'b * 'a |
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val repeat: ('a -> 'b * 'a) -> 'a -> 'b list * 'a |
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val repeat1: ('a -> 'b * 'a) -> 'a -> 'b list * 'a |
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val enum: string -> (token list -> 'a * token list) |
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-> token list -> 'a list * token list |
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val enum1: string -> (token list -> 'a * token list) |
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-> token list -> 'a list * token list |
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val list: (token list -> 'a * token list) |
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-> token list -> 'a list * token list |
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val list1: (token list -> 'a * token list) |
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-> token list -> 'a list * token list |
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val name: token list -> string * token list |
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val sort: token list -> string * token list |
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451 | 45 |
val opt_infix: token list -> string * token list |
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val opt_mixfix: token list -> string * token list |
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636 | 47 |
val opt_witness: token list -> string * token list |
389 | 48 |
type syntax |
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val make_syntax: string list -> |
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(string * (token list -> (string * string) * token list)) list -> syntax |
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added check for concistency of filename and theory name;
clasohm
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changeset
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val parse_thy: syntax -> string -> string -> string |
389 | 52 |
val section: string -> string -> (token list -> string * token list) |
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-> (string * (token list -> (string * string) * token list)) |
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val axm_section: string -> string |
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-> (token list -> (string * string list) * token list) |
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-> (string * (token list -> (string * string) * token list)) |
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val pure_keywords: string list |
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val pure_sections: |
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(string * (token list -> (string * string) * token list)) list |
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6333c181a3f7
Pure/Thy/thy_parse/THY_PARSE: deleted duplicate specifications of parens,
lcp
parents:
558
diff
changeset
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(*items for building strings*) |
710 | 61 |
val cat: string -> string -> string |
656 | 62 |
val parens: string -> string |
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val brackets: string -> string |
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val mk_list: string list -> string |
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val mk_big_list: string list -> string |
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val mk_pair: string * string -> string |
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val mk_triple: string * string * string -> string |
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val strip_quotes: string -> string |
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389 | 69 |
end; |
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414 | 71 |
functor ThyParseFun(structure Symtab: SYMTAB and ThyScan: THY_SCAN): THY_PARSE = |
389 | 72 |
struct |
73 |
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open ThyScan; |
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(** parser toolbox **) |
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type token = token_kind * string * int; |
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(* errors *) |
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exception SYNTAX_ERROR of string * string * int; |
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fun syn_err s1 s2 n = raise SYNTAX_ERROR (s1, s2, n); |
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fun eof_err () = error "Unexpected end-of-file"; |
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570
6333c181a3f7
Pure/Thy/thy_parse/THY_PARSE: deleted duplicate specifications of parens,
lcp
parents:
558
diff
changeset
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90 |
(*Similar to Prolog's cut: reports any syntax error instead of backtracking |
6333c181a3f7
Pure/Thy/thy_parse/THY_PARSE: deleted duplicate specifications of parens,
lcp
parents:
558
diff
changeset
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through a superior || *) |
389 | 92 |
fun !! parse toks = parse toks |
93 |
handle SYNTAX_ERROR (s1, s2, n) => error ("Syntax error on line " ^ |
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string_of_int n ^ ": " ^ s1 ^ " expected and " ^ s2 ^ " was found"); |
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(* parser combinators *) |
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fun (parse >> f) toks = apfst f (parse toks); |
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fun (parse1 || parse2) toks = |
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parse1 toks handle SYNTAX_ERROR _ => parse2 toks; |
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103 |
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fun (parse1 -- parse2) toks = |
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let |
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val (x, toks') = parse1 toks; |
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val (y, toks'') = parse2 toks'; |
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108 |
in |
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((x, y), toks'') |
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end; |
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fun (parse1 ^^ parse2) = parse1 -- parse2 >> op ^; |
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(* generic parsers *) |
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fun $$ a ((k, b, n) :: toks) = |
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if k = Keyword andalso a = b then (a, toks) |
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else syn_err (quote a) (quote b) n |
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| $$ _ [] = eof_err (); |
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fun (a $$-- parse) = $$ a -- parse >> #2; |
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fun (parse --$$ a) = parse -- $$ a >> #1; |
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fun kind k1 ((k2, s, n) :: toks) = |
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if k1 = k2 then (s, toks) |
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else syn_err (name_of_kind k1) (quote s) n |
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| kind _ [] = eof_err (); |
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val ident = kind Ident; |
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val long_ident = kind LongIdent; |
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val long_id = ident || long_ident; |
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val type_var = kind TypeVar >> quote; |
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val nat = kind Nat; |
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val string = kind String; |
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val verbatim = kind Verbatim; |
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val eof = kind EOF; |
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fun empty toks = ([], toks); |
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142 |
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fun optional parse def = parse || empty >> K def; |
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fun repeat parse toks = (parse -- repeat parse >> op :: || empty) toks; |
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fun repeat1 parse = parse -- repeat parse >> op ::; |
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fun enum1 sep parse = parse -- repeat (sep $$-- parse) >> op ::; |
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fun enum sep parse = enum1 sep parse || empty; |
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val list = enum ","; |
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val list1 = enum1 ","; |
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(** theory parsers **) |
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(* misc utilities *) |
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fun cat s1 s2 = s1 ^ " " ^ s2; |
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558 | 162 |
val parens = enclose "(" ")"; |
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val brackets = enclose "[" "]"; |
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389 | 164 |
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val mk_list = brackets o commas; |
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val mk_big_list = brackets o space_implode ",\n "; |
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fun mk_pair (x, y) = parens (commas [x, y]); |
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fun mk_triple (x, y, z) = parens (commas [x, y, z]); |
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389 | 170 |
fun mk_triple1 ((x, y), z) = mk_triple (x, y, z); |
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fun mk_triple2 (x, (y, z)) = mk_triple (x, y, z); |
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val split_decls = flat o map (fn (xs, y) => map (rpair y) xs); |
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fun strip_quotes str = |
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implode (tl (take (size str - 1, explode str))); |
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(* names *) |
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val name = ident >> quote || string; |
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val names = list name; |
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val names1 = list1 name; |
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val name_list = names >> mk_list; |
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val name_list1 = names1 >> mk_list; |
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(* classes *) |
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val subclass = name -- optional ("<" $$-- !! name_list1) "[]"; |
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558 | 192 |
val class_decls = repeat1 (subclass >> mk_pair) >> mk_big_list; |
389 | 193 |
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(* arities *) |
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val sort = |
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name >> brackets || |
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"{" $$-- name_list --$$ "}"; |
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val sort_list1 = list1 sort >> mk_list; |
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val arity = optional ("(" $$-- !! (sort_list1 --$$")")) "[]" -- sort; |
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val arity_decls = repeat1 (names1 --$$ "::" -- !! arity) |
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>> (mk_big_list o map mk_triple2 o split_decls); |
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(* mixfix annotations *) |
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val infxl = "infixl" $$-- !! nat >> cat "Infixl"; |
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val infxr = "infixr" $$-- !! nat >> cat "Infixr"; |
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889 | 215 |
val binder = "binder" $$-- |
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!! (string -- optional ("[" $$-- nat --$$ "]") "0" -- nat) |
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>> (cat "Binder" o mk_triple1); |
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val opt_pris = optional ("[" $$-- !! (list nat --$$ "]")) [] >> mk_list; |
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val mixfix = string -- !! (opt_pris -- optional nat "max_pri") |
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>> (cat "Mixfix" o mk_triple2); |
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558 | 224 |
fun opt_syn fx = optional ("(" $$-- fx --$$ ")") "NoSyn"; |
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val opt_infix = opt_syn (infxl || infxr); |
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val opt_mixfix = opt_syn (mixfix || infxl || infxr || binder); |
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(* types *) |
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fun mk_old_type_decl ((ts, n), syn) = |
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map (fn t => (mk_triple (t, n, syn), false)) ts; |
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fun mk_type_decl (((xs, t), None), syn) = |
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[(mk_triple (t, string_of_int (length xs), syn), false)] |
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| mk_type_decl (((xs, t), Some rhs), syn) = |
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558 | 238 |
[(parens (commas [t, mk_list xs, rhs, syn]), true)]; |
389 | 239 |
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fun mk_type_decls tys = |
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414 | 241 |
"|> add_types\n" ^ mk_big_list (keyfilter tys false) ^ "\n\n\ |
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\|> add_tyabbrs\n" ^ mk_big_list (keyfilter tys true); |
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389 | 243 |
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425 | 245 |
val old_type_decl = names1 -- nat -- opt_infix >> mk_old_type_decl; |
389 | 246 |
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val type_args = |
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type_var >> (fn x => [x]) || |
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"(" $$-- !! (list1 type_var --$$ ")") || |
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empty >> K []; |
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val type_decl = type_args -- name -- optional ("=" $$-- !! string >> Some) None |
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-- opt_infix >> mk_type_decl; |
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777 | 255 |
val type_decls = repeat1 (old_type_decl || type_decl) >> (mk_type_decls o flat); |
389 | 256 |
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(* consts *) |
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val const_decls = repeat1 (names1 --$$ "::" -- !! (string -- opt_mixfix)) |
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>> (mk_big_list o map mk_triple2 o split_decls); |
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(* translations *) |
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265 |
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val trans_pat = |
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optional ("(" $$-- !! (name --$$ ")")) "\"logic\"" -- string >> mk_pair; |
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val trans_arrow = |
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$$ "=>" >> K " |-> " || |
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$$ "<=" >> K " <-| " || |
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$$ "==" >> K " <-> "; |
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val trans_decls = repeat1 (trans_pat ^^ !! (trans_arrow ^^ trans_pat)) |
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>> mk_big_list; |
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276 |
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(* ML translations *) |
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279 |
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val trfun_defs = |
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" val parse_ast_translation = [];\n\ |
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\ val parse_translation = [];\n\ |
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\ val print_translation = [];\n\ |
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\ val print_ast_translation = [];"; |
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285 |
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val trfun_args = |
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"(parse_ast_translation, parse_translation, \ |
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\print_translation, print_ast_translation)"; |
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289 |
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fun mk_mltrans txt = |
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"let\n" |
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^ trfun_defs ^ "\n" |
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^ txt ^ "\n\ |
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\in\n\ |
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\ " ^ trfun_args ^ "\n\ |
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\end"; |
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297 |
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val mltrans = verbatim >> mk_mltrans; |
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299 |
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300 |
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(* axioms *) |
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302 |
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val mk_axms = mk_big_list o map (mk_pair o apfst quote); |
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304 |
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fun mk_axiom_decls axms = (mk_axms axms, map fst axms); |
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306 |
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val axiom_decls = repeat1 (ident -- !! string) >> mk_axiom_decls; |
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308 |
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309 |
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(* axclass *) |
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311 |
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fun mk_axclass_decl ((c, cs), axms) = |
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(mk_pair (c, cs) ^ "\n" ^ mk_axms axms, |
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(strip_quotes c ^ "I") :: map fst axms); |
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315 |
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val axclass_decl = subclass -- repeat (ident -- !! string) >> mk_axclass_decl; |
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317 |
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318 |
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451 | 319 |
(* instance *) |
389 | 320 |
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425 | 321 |
fun mk_witness (axths, opt_tac) = |
389 | 322 |
mk_list (keyfilter axths false) ^ "\n" ^ |
323 |
mk_list (keyfilter axths true) ^ "\n" ^ |
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324 |
opt_tac; |
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325 |
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326 |
val axm_or_thm = |
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327 |
string >> rpair false || |
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328 |
long_id >> rpair true; |
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329 |
||
451 | 330 |
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425 | 331 |
val opt_witness = |
389 | 332 |
optional ("(" $$-- list1 axm_or_thm --$$ ")") [] -- |
558 | 333 |
optional (verbatim >> (parens o cat "Some" o parens)) "None" |
425 | 334 |
>> mk_witness; |
335 |
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336 |
val instance_decl = |
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636 | 337 |
(name --$$ "<" -- name >> (pair "|> AxClass.add_inst_subclass" o mk_pair) || |
338 |
name --$$ "::" -- arity >> (pair "|> AxClass.add_inst_arity" o mk_triple2)) |
|
451 | 339 |
-- opt_witness |
777 | 340 |
>> (fn ((x, y), z) => (cat_lines [x, y, z])); |
389 | 341 |
|
342 |
||
343 |
||
344 |
(** theory syntax **) |
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345 |
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346 |
type syntax = |
|
347 |
lexicon * (token list -> (string * string) * token list) Symtab.table; |
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348 |
||
349 |
fun make_syntax keywords sects = |
|
451 | 350 |
(make_lexicon (map fst sects @ keywords), |
351 |
Symtab.make sects handle Symtab.DUPS dups => |
|
352 |
error ("Duplicate sections in theory file syntax: " ^ commas_quote dups)); |
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389 | 353 |
|
354 |
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355 |
(* header *) |
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356 |
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357 |
fun mk_header (thy_name, bases) = |
|
586
201e115d8031
renamed base_on into mk_base and moved it to the beginning of the generated
clasohm
parents:
570
diff
changeset
|
358 |
(thy_name, "mk_base " ^ mk_list bases ^ " " ^ quote thy_name); |
389 | 359 |
|
360 |
val base = |
|
361 |
ident >> (cat "Thy" o quote) || |
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362 |
string >> cat "File"; |
|
363 |
||
364 |
val header = ident --$$ "=" -- enum1 "+" base >> mk_header; |
|
365 |
||
366 |
||
367 |
(* extension *) |
|
368 |
||
369 |
fun mk_extension (txts, mltxt) = |
|
370 |
let |
|
371 |
val cat_sects = space_implode "\n\n" o filter_out (equal ""); |
|
372 |
val (extxts, postxts) = split_list txts; |
|
373 |
in |
|
374 |
(cat_sects extxts, cat_sects postxts, mltxt) |
|
375 |
end; |
|
376 |
||
377 |
fun sect tab ((Keyword, s, n) :: toks) = |
|
378 |
(case Symtab.lookup (tab, s) of |
|
379 |
Some parse => !! parse toks |
|
380 |
| None => syn_err "section" s n) |
|
381 |
| sect _ ((_, s, n) :: _) = syn_err "section" s n |
|
382 |
| sect _ [] = eof_err (); |
|
383 |
||
384 |
fun extension sectab = "+" $$-- !! (repeat (sect sectab) --$$ "end") -- |
|
385 |
optional ("ML" $$-- verbatim) "" >> mk_extension; |
|
386 |
||
387 |
||
388 |
(* theory definition *) |
|
389 |
||
558 | 390 |
fun mk_structure tname ((thy_name, old_thys), opt_txts) = |
391 |
if thy_name <> tname then |
|
392 |
error ("Filename \"" ^ tname ^ ".thy\" and theory name " |
|
393 |
^ quote thy_name ^ " are different") |
|
394 |
else |
|
395 |
(case opt_txts of |
|
396 |
Some (extxt, postxt, mltxt) => |
|
587
3ba470399605
renamed temporary variable 'base' to 'thy' in mk_structure
clasohm
parents:
586
diff
changeset
|
397 |
"val thy = " ^ old_thys ^ " true;\n\n\ |
586
201e115d8031
renamed base_on into mk_base and moved it to the beginning of the generated
clasohm
parents:
570
diff
changeset
|
398 |
\structure " ^ thy_name ^ " =\n\ |
476
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
399 |
\struct\n\ |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
400 |
\\n\ |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
401 |
\local\n" |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
402 |
^ trfun_defs ^ "\n\ |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
403 |
\in\n\ |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
404 |
\\n" |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
405 |
^ mltxt ^ "\n\ |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
406 |
\\n\ |
777 | 407 |
\val thy = thy\n\ |
408 |
\\n\ |
|
476
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
409 |
\|> add_trfuns\n" |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
410 |
^ trfun_args ^ "\n\ |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
411 |
\\n" |
836cad329311
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clasohm
parents:
451
diff
changeset
|
412 |
^ extxt ^ "\n\ |
836cad329311
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clasohm
parents:
451
diff
changeset
|
413 |
\\n\ |
836cad329311
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parents:
451
diff
changeset
|
414 |
\|> add_thyname " ^ quote thy_name ^ ";\n\ |
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clasohm
parents:
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diff
changeset
|
415 |
\\n\ |
777 | 416 |
\val () = store_theory (thy, " ^ quote thy_name ^ ");\n\ |
417 |
\\n\ |
|
476
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
418 |
\\n" |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
419 |
^ postxt ^ "\n\ |
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
420 |
\\n\ |
836cad329311
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clasohm
parents:
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diff
changeset
|
421 |
\end;\n\ |
777 | 422 |
\end;\n" |
558 | 423 |
| None => |
777 | 424 |
"val thy = " ^ old_thys ^ " false;\n\ |
425 |
\\n\ |
|
586
201e115d8031
renamed base_on into mk_base and moved it to the beginning of the generated
clasohm
parents:
570
diff
changeset
|
426 |
\structure " ^ thy_name ^ " =\n\ |
476
836cad329311
added check for concistency of filename and theory name;
clasohm
parents:
451
diff
changeset
|
427 |
\struct\n\ |
836cad329311
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clasohm
parents:
451
diff
changeset
|
428 |
\\n\ |
587
3ba470399605
renamed temporary variable 'base' to 'thy' in mk_structure
clasohm
parents:
586
diff
changeset
|
429 |
\val thy = thy\n\ |
476
836cad329311
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clasohm
parents:
451
diff
changeset
|
430 |
\\n\ |
777 | 431 |
\val () = store_theory (thy, " ^ quote thy_name ^ ");\n\ |
432 |
\\n\ |
|
433 |
\end;\n"); |
|
389 | 434 |
|
476
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clasohm
parents:
451
diff
changeset
|
435 |
fun theory_defn sectab tname = |
389 | 436 |
header -- optional (extension sectab >> Some) None -- eof |
476
836cad329311
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clasohm
parents:
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diff
changeset
|
437 |
>> (mk_structure tname o #1); |
389 | 438 |
|
476
836cad329311
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clasohm
parents:
451
diff
changeset
|
439 |
fun parse_thy (lex, sectab) tname str = |
836cad329311
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parents:
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diff
changeset
|
440 |
#1 (!! (theory_defn sectab tname) (tokenize lex str)); |
389 | 441 |
|
442 |
||
443 |
(* standard sections *) |
|
444 |
||
445 |
fun mk_val ax = "val " ^ ax ^ " = get_axiom thy " ^ quote ax ^ ";"; |
|
777 | 446 |
val mk_vals = cat_lines o map mk_val; |
389 | 447 |
|
777 | 448 |
fun mk_axm_sect "" (txt, axs) = (txt, mk_vals axs) |
449 |
| mk_axm_sect pretxt (txt, axs) = (pretxt ^ "\n" ^ txt, mk_vals axs); |
|
389 | 450 |
|
451 |
fun axm_section name pretxt parse = |
|
452 |
(name, parse >> mk_axm_sect pretxt); |
|
453 |
||
454 |
fun section name pretxt parse = |
|
455 |
axm_section name pretxt (parse >> rpair []); |
|
456 |
||
457 |
||
458 |
val pure_keywords = |
|
451 | 459 |
["end", "ML", "mixfix", "infixr", "infixl", "binder", "=", "+", ",", "<", |
777 | 460 |
"{", "}", "(", ")", "[", "]", "::", "==", "=>", "<="]; |
389 | 461 |
|
462 |
val pure_sections = |
|
414 | 463 |
[section "classes" "|> add_classes" class_decls, |
464 |
section "default" "|> add_defsort" sort, |
|
777 | 465 |
section "types" "" type_decls, |
414 | 466 |
section "arities" "|> add_arities" arity_decls, |
467 |
section "consts" "|> add_consts" const_decls, |
|
468 |
section "syntax" "|> add_syntax" const_decls, |
|
469 |
section "translations" "|> add_trrules" trans_decls, |
|
470 |
section "MLtrans" "|> add_trfuns" mltrans, |
|
777 | 471 |
section "MLtext" "" verbatim, |
414 | 472 |
axm_section "rules" "|> add_axioms" axiom_decls, |
558 | 473 |
axm_section "defs" "|> add_defs" axiom_decls, |
636 | 474 |
axm_section "axclass" "|> AxClass.add_axclass" axclass_decl, |
777 | 475 |
section "instance" "" instance_decl]; |
389 | 476 |
|
477 |
||
478 |
end; |