wenzelm@5826
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(* Title: Pure/Isar/outer_parse.ML
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wenzelm@5826
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ID: $Id$
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wenzelm@5826
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Author: Markus Wenzel, TU Muenchen
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wenzelm@5826
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wenzelm@5826
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Generic parsers for Isabelle/Isar outer syntax.
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*)
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signature OUTER_PARSE =
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sig
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type token
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val group: string -> (token list -> 'a) -> token list -> 'a
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wenzelm@5826
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val !!! : (token list -> 'a) -> token list -> 'a
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wenzelm@8581
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val !!!! : (token list -> 'a) -> token list -> 'a
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wenzelm@12047
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val triple1: ('a * 'b) * 'c -> 'a * 'b * 'c
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wenzelm@12047
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val triple2: 'a * ('b * 'c) -> 'a * 'b * 'c
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wenzelm@12047
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val triple_swap: ('a * 'b) * 'c -> ('a * 'c) * 'b
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wenzelm@15703
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val not_eof: token list -> token * token list
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wenzelm@5826
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val position: (token list -> 'a * 'b) -> token list -> ('a * Position.T) * 'b
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wenzelm@7026
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val command: token list -> string * token list
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wenzelm@5826
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val keyword: token list -> string * token list
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wenzelm@5826
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val short_ident: token list -> string * token list
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wenzelm@5826
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val long_ident: token list -> string * token list
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wenzelm@5826
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val sym_ident: token list -> string * token list
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kleing@15963
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val minus: token list -> string * token list
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wenzelm@5826
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val term_var: token list -> string * token list
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wenzelm@5826
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val type_ident: token list -> string * token list
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wenzelm@5826
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val type_var: token list -> string * token list
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wenzelm@5826
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val number: token list -> string * token list
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wenzelm@5826
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val string: token list -> string * token list
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wenzelm@5826
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val verbatim: token list -> string * token list
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wenzelm@6860
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val sync: token list -> string * token list
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wenzelm@5826
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val eof: token list -> string * token list
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wenzelm@15703
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val $$$ : string -> token list -> string * token list
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wenzelm@16030
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val reserved : string -> token list -> string * token list
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wenzelm@15703
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val semicolon: token list -> string * token list
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wenzelm@15703
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val underscore: token list -> string * token list
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wenzelm@15703
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val maybe: (token list -> 'a * token list) -> token list -> 'a option * token list
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wenzelm@17070
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val tag_name: token list -> string * token list
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wenzelm@17070
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val tags: token list -> string list * token list
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wenzelm@7930
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val opt_unit: token list -> unit * token list
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wenzelm@14646
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val opt_keyword: string -> token list -> bool * token list
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wenzelm@5826
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val nat: token list -> int * token list
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wenzelm@5826
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val enum: string -> (token list -> 'a * token list) -> token list -> 'a list * token list
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wenzelm@5826
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val enum1: string -> (token list -> 'a * token list) -> token list -> 'a list * token list
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wenzelm@5826
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val list: (token list -> 'a * token list) -> token list -> 'a list * token list
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wenzelm@5826
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val list1: (token list -> 'a * token list) -> token list -> 'a list * token list
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wenzelm@6013
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val and_list: (token list -> 'a * token list) -> token list -> 'a list * token list
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wenzelm@6013
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val and_list1: (token list -> 'a * token list) -> token list -> 'a list * token list
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wenzelm@5826
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val name: token list -> bstring * token list
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wenzelm@5826
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val xname: token list -> xstring * token list
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wenzelm@5826
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val text: token list -> string * token list
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wenzelm@14949
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val path: token list -> Path.T * token list
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wenzelm@8897
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val sort: token list -> string * token list
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wenzelm@8897
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val arity: token list -> (string list * string) * token list
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wenzelm@5826
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val type_args: token list -> string list * token list
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wenzelm@5826
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val typ: token list -> string * token list
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wenzelm@5826
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val opt_infix: token list -> Syntax.mixfix * token list
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wenzelm@5826
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val opt_mixfix: token list -> Syntax.mixfix * token list
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wenzelm@9037
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val opt_infix': token list -> Syntax.mixfix * token list
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wenzelm@9037
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val opt_mixfix': token list -> Syntax.mixfix * token list
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wenzelm@14646
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val mixfix': token list -> Syntax.mixfix * token list
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wenzelm@5826
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val const: token list -> (bstring * string * Syntax.mixfix) * token list
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val term: token list -> string * token list
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wenzelm@5826
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val prop: token list -> string * token list
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wenzelm@6935
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val propp: token list -> (string * (string list * string list)) * token list
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wenzelm@6949
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val termp: token list -> (string * string list) * token list
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wenzelm@9131
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val arguments: token list -> Args.T list * token list
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wenzelm@15703
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val attribs: token list -> Attrib.src list * token list
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wenzelm@15703
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val opt_attribs: token list -> Attrib.src list * token list
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wenzelm@15703
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val thm_name: string -> token list -> (bstring * Attrib.src list) * token list
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wenzelm@15703
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val opt_thm_name: string -> token list -> (bstring * Attrib.src list) * token list
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wenzelm@15703
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val spec_name: token list -> ((bstring * string) * Attrib.src list) * token list
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wenzelm@15703
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val spec_opt_name: token list -> ((bstring * string) * Attrib.src list) * token list
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wenzelm@15703
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val xthm: token list -> (thmref * Attrib.src list) * token list
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wenzelm@15703
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val xthms1: token list -> (thmref * Attrib.src list) list * token list
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ballarin@16736
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val locale_target: token list -> xstring * token list
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ballarin@16736
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val opt_locale_target: token list -> xstring option * token list
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wenzelm@12272
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val locale_expr: token list -> Locale.expr * token list
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wenzelm@12942
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val locale_keyword: token list -> string * token list
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wenzelm@15703
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val locale_element: token list -> Locale.element * token list
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wenzelm@15703
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val locale_elem_or_expr: token list -> Locale.element Locale.elem_expr * token list
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val method: token list -> Method.text * token list
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end;
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structure OuterParse: OUTER_PARSE =
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struct
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structure T = OuterLex;
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type token = T.token;
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(** error handling **)
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wenzelm@5826
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(* group atomic parsers (no cuts!) *)
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wenzelm@5826
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fun fail_with s = Scan.fail_with
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(fn [] => s ^ " expected (past end-of-file!)"
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wenzelm@9155
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| (tok :: _) => s ^ " expected,\nbut " ^ T.name_of tok ^ T.pos_of tok ^ " was found");
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wenzelm@5826
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fun group s scan = scan || fail_with s;
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wenzelm@5877
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(* cut *)
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wenzelm@8581
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fun cut kind scan =
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let
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fun get_pos [] = " (past end-of-file!)"
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wenzelm@9131
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| get_pos (tok :: _) = T.pos_of tok;
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wenzelm@5826
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skalberg@15531
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fun err (toks, NONE) = kind ^ get_pos toks
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skalberg@15531
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| err (toks, SOME msg) = kind ^ get_pos toks ^ ": " ^ msg;
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wenzelm@5826
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in Scan.!! err scan end;
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wenzelm@5826
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wenzelm@8586
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fun !!! scan = cut "Outer syntax error" scan;
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wenzelm@8586
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fun !!!! scan = cut "Corrupted outer syntax in presentation" scan;
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wenzelm@8581
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(** basic parsers **)
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(* utils *)
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fun triple1 ((x, y), z) = (x, y, z);
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wenzelm@5826
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fun triple2 (x, (y, z)) = (x, y, z);
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wenzelm@6430
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fun triple_swap ((x, y), z) = ((x, z), y);
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(* tokens *)
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val not_eof = Scan.one T.not_eof;
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wenzelm@15703
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wenzelm@15703
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fun position scan = (Scan.ahead not_eof >> T.position_of) -- scan >> Library.swap;
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wenzelm@5826
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fun kind k =
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wenzelm@9131
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group (T.str_of_kind k) (Scan.one (T.is_kind k) >> T.val_of);
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val command = kind T.Command;
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wenzelm@9131
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val keyword = kind T.Keyword;
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wenzelm@9131
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val short_ident = kind T.Ident;
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wenzelm@9131
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val long_ident = kind T.LongIdent;
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wenzelm@9131
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val sym_ident = kind T.SymIdent;
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wenzelm@9131
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val term_var = kind T.Var;
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wenzelm@9131
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val type_ident = kind T.TypeIdent;
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wenzelm@9131
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val type_var = kind T.TypeVar;
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wenzelm@9131
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val number = kind T.Nat;
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wenzelm@9131
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val string = kind T.String;
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wenzelm@9131
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val verbatim = kind T.Verbatim;
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wenzelm@9131
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val sync = kind T.Sync;
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wenzelm@9131
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val eof = kind T.EOF;
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wenzelm@5826
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wenzelm@5826
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fun $$$ x =
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wenzelm@9131
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group (T.str_of_kind T.Keyword ^ " " ^ quote x)
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wenzelm@9131
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(Scan.one (T.keyword_with (equal x)) >> T.val_of);
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wenzelm@9131
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wenzelm@16030
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fun reserved x =
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wenzelm@16030
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group ("Reserved identifier " ^ quote x)
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wenzelm@16030
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(Scan.one (T.ident_with (equal x)) >> T.val_of);
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wenzelm@16030
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wenzelm@9131
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val semicolon = $$$ ";";
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wenzelm@5826
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wenzelm@15703
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val minus = sym_ident :-- (fn "-" => Scan.succeed () | _ => Scan.fail) >> #1;
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wenzelm@11792
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val underscore = sym_ident :-- (fn "_" => Scan.succeed () | _ => Scan.fail) >> #1;
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wenzelm@15703
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fun maybe scan = underscore >> K NONE || scan >> SOME;
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wenzelm@11792
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wenzelm@14835
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val nat = number >> (#1 o Library.read_int o Symbol.explode);
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wenzelm@5826
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wenzelm@17070
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val tag_name = group "tag name" (short_ident || string);
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wenzelm@17070
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val tags = Scan.repeat ($$$ "%" |-- !!! tag_name);
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wenzelm@17070
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wenzelm@7930
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val opt_unit = Scan.optional ($$$ "(" -- $$$ ")" >> (K ())) ();
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wenzelm@14646
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fun opt_keyword s = Scan.optional ($$$ "(" |-- !!! (($$$ s >> K true) --| $$$ ")")) false;
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wenzelm@14646
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wenzelm@5826
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wenzelm@5826
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(* enumerations *)
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wenzelm@5826
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wenzelm@6003
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fun enum1 sep scan = scan -- Scan.repeat ($$$ sep |-- !!! scan) >> op ::;
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wenzelm@5826
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fun enum sep scan = enum1 sep scan || Scan.succeed [];
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wenzelm@5826
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wenzelm@5826
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fun list1 scan = enum1 "," scan;
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wenzelm@5826
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fun list scan = enum "," scan;
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wenzelm@5826
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wenzelm@6013
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fun and_list1 scan = enum1 "and" scan;
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wenzelm@6013
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fun and_list scan = enum "and" scan;
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wenzelm@6013
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wenzelm@5826
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wenzelm@5960
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(* names and text *)
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wenzelm@5826
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wenzelm@8146
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val name = group "name declaration" (short_ident || sym_ident || string || number);
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wenzelm@8146
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val xname = group "name reference" (short_ident || long_ident || sym_ident || string || number);
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wenzelm@8146
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val text = group "text" (short_ident || long_ident || sym_ident || string || number || verbatim);
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wenzelm@14949
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val path = group "file name/path specification" name >> Path.unpack;
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wenzelm@6553
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wenzelm@6553
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wenzelm@6372
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(* sorts and arities *)
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wenzelm@5826
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wenzelm@8897
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val sort = group "sort" xname;
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wenzelm@5826
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wenzelm@6372
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fun gen_arity cod =
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wenzelm@7352
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Scan.optional ($$$ "(" |-- !!! (list1 sort --| $$$ ")")) [] -- cod;
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wenzelm@6372
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wenzelm@6372
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val arity = gen_arity sort;
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wenzelm@5826
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wenzelm@5826
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wenzelm@5826
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(* types *)
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wenzelm@5826
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wenzelm@8146
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val typ = group "type"
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wenzelm@8146
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(short_ident || long_ident || sym_ident || type_ident || type_var || string || number);
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wenzelm@5826
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wenzelm@5826
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val type_args =
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wenzelm@5826
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type_ident >> single ||
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wenzelm@5826
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$$$ "(" |-- !!! (list1 type_ident --| $$$ ")") ||
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wenzelm@5826
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Scan.succeed [];
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wenzelm@5826
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wenzelm@5826
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wenzelm@5826
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(* mixfix annotations *)
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wenzelm@5826
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wenzelm@11651
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val infx = $$$ "infix" |-- !!! (nat >> Syntax.Infix || string -- nat >> Syntax.InfixName);
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wenzelm@5826
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val infxl = $$$ "infixl" |-- !!! (nat >> Syntax.Infixl || string -- nat >> Syntax.InfixlName);
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wenzelm@5826
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val infxr = $$$ "infixr" |-- !!! (nat >> Syntax.Infixr || string -- nat >> Syntax.InfixrName);
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wenzelm@5826
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wenzelm@5826
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val binder =
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wenzelm@5826
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$$$ "binder" |--
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wenzelm@5826
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!!! (string -- ($$$ "[" |-- nat --| $$$ "]" -- nat || nat >> (fn n => (n, n))))
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wenzelm@5826
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>> (Syntax.Binder o triple2);
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wenzelm@5826
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wenzelm@5826
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wenzelm@5826
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val opt_pris = Scan.optional ($$$ "[" |-- !!! (list nat --| $$$ "]")) [];
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wenzelm@5826
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wenzelm@5826
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val mixfix =
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wenzelm@8648
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(string -- !!! (opt_pris -- Scan.optional nat Syntax.max_pri))
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wenzelm@8648
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>> (Syntax.Mixfix o triple2);
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wenzelm@5826
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wenzelm@14646
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fun fix_decl guard fix = $$$ "(" |-- guard (fix --| $$$ ")");
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wenzelm@14646
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fun opt_fix guard fix = Scan.optional (fix_decl guard fix) Syntax.NoSyn;
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wenzelm@5826
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wenzelm@11651
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val opt_infix = opt_fix !!! (infxl || infxr || infx);
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wenzelm@11651
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val opt_mixfix = opt_fix !!! (mixfix || binder || infxl || infxr || infx);
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wenzelm@11651
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val opt_infix' = opt_fix I (infxl || infxr || infx);
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wenzelm@11651
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val opt_mixfix' = opt_fix I (mixfix || binder || infxl || infxr || infx);
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wenzelm@14646
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val mixfix' = fix_decl !!! (mixfix || binder || infxl || infxr || infx);
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wenzelm@5826
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wenzelm@5826
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wenzelm@5826
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(* consts *)
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wenzelm@5826
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wenzelm@5826
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val const =
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wenzelm@5826
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name -- ($$$ "::" |-- !!! (typ -- opt_mixfix)) >> triple2;
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wenzelm@5826
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wenzelm@5826
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wenzelm@5826
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(* terms *)
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wenzelm@5826
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wenzelm@7477
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val trm = short_ident || long_ident || sym_ident || term_var || number || string;
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wenzelm@5826
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wenzelm@5826
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val term = group "term" trm;
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wenzelm@5826
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val prop = group "proposition" trm;
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wenzelm@5826
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wenzelm@5826
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wenzelm@6949
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(* patterns *)
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wenzelm@6935
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wenzelm@6949
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val is_terms = Scan.repeat1 ($$$ "is" |-- term);
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wenzelm@6935
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val is_props = Scan.repeat1 ($$$ "is" |-- prop);
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wenzelm@6935
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val concl_props = $$$ "concl" |-- !!! is_props;
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wenzelm@7418
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val any_props = concl_props >> pair [] || is_props -- Scan.optional concl_props [];
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wenzelm@6935
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wenzelm@6935
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val propp = prop -- Scan.optional ($$$ "(" |-- !!! (any_props --| $$$ ")")) ([], []);
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wenzelm@12047
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val propp' = prop -- Scan.optional ($$$ "(" |-- !!! (is_props --| $$$ ")")) [];
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wenzelm@6949
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val termp = term -- Scan.optional ($$$ "(" |-- !!! (is_terms --| $$$ ")")) [];
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wenzelm@6935
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wenzelm@6935
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wenzelm@5826
|
269 |
(* arguments *)
|
wenzelm@5826
|
270 |
|
wenzelm@9131
|
271 |
fun keyword_symid is_symid = Scan.one (T.keyword_with is_symid) >> T.val_of;
|
wenzelm@9131
|
272 |
val keyword_sid = keyword_symid T.is_sid;
|
wenzelm@5826
|
273 |
|
wenzelm@6983
|
274 |
fun atom_arg is_symid blk =
|
wenzelm@5826
|
275 |
group "argument"
|
wenzelm@7477
|
276 |
(position (short_ident || long_ident || sym_ident || term_var ||
|
wenzelm@15703
|
277 |
type_ident || type_var || number) >> Args.mk_ident ||
|
wenzelm@15703
|
278 |
position (keyword_symid is_symid) >> Args.mk_keyword ||
|
wenzelm@15703
|
279 |
position (string || verbatim) >> Args.mk_string ||
|
wenzelm@15703
|
280 |
position (if blk then $$$ "," else Scan.fail) >> Args.mk_keyword);
|
wenzelm@5826
|
281 |
|
wenzelm@5877
|
282 |
fun paren_args l r scan = position ($$$ l) -- !!! (scan true -- position ($$$ r))
|
wenzelm@15703
|
283 |
>> (fn (x, (ys, z)) => Args.mk_keyword x :: ys @ [Args.mk_keyword z]);
|
wenzelm@5826
|
284 |
|
wenzelm@6983
|
285 |
fun args is_symid blk x = Scan.optional (args1 is_symid blk) [] x
|
wenzelm@6983
|
286 |
and args1 is_symid blk x =
|
wenzelm@5826
|
287 |
((Scan.repeat1
|
wenzelm@6983
|
288 |
(Scan.repeat1 (atom_arg is_symid blk) ||
|
wenzelm@6983
|
289 |
paren_args "(" ")" (args is_symid) ||
|
skalberg@15570
|
290 |
paren_args "[" "]" (args is_symid))) >> List.concat) x;
|
wenzelm@5826
|
291 |
|
wenzelm@9131
|
292 |
val arguments = args T.is_sid false;
|
wenzelm@9131
|
293 |
|
wenzelm@5826
|
294 |
|
wenzelm@6372
|
295 |
(* theorem specifications *)
|
wenzelm@5826
|
296 |
|
wenzelm@9131
|
297 |
val attrib = position ((keyword_sid || xname) -- !!! arguments) >> Args.src;
|
wenzelm@5826
|
298 |
val attribs = $$$ "[" |-- !!! (list attrib --| $$$ "]");
|
wenzelm@5826
|
299 |
val opt_attribs = Scan.optional attribs [];
|
wenzelm@5826
|
300 |
|
wenzelm@6398
|
301 |
fun thm_name s = name -- opt_attribs --| $$$ s;
|
wenzelm@6511
|
302 |
fun opt_thm_name s =
|
wenzelm@6511
|
303 |
Scan.optional ((name -- opt_attribs || (attribs >> pair "")) --| $$$ s) ("", []);;
|
wenzelm@5917
|
304 |
|
wenzelm@6372
|
305 |
val spec_name = thm_name ":" -- prop >> (fn ((x, y), z) => ((x, z), y));
|
wenzelm@6372
|
306 |
val spec_opt_name = opt_thm_name ":" -- prop >> (fn ((x, y), z) => ((x, z), y));
|
wenzelm@6372
|
307 |
|
berghofe@15456
|
308 |
val thm_sel = $$$ "(" |-- list1
|
wenzelm@15703
|
309 |
(nat --| minus -- nat >> PureThy.FromTo ||
|
wenzelm@15703
|
310 |
nat --| minus >> PureThy.From ||
|
wenzelm@15703
|
311 |
nat >> PureThy.Single) --| $$$ ")";
|
berghofe@15456
|
312 |
|
wenzelm@16498
|
313 |
val xthm = (xname -- thm_sel >> NameSelection || xname >> Name) -- opt_attribs;
|
wenzelm@6372
|
314 |
val xthms1 = Scan.repeat1 xthm;
|
wenzelm@5826
|
315 |
|
wenzelm@5826
|
316 |
|
wenzelm@12047
|
317 |
(* locale elements *)
|
wenzelm@12047
|
318 |
|
wenzelm@12272
|
319 |
local
|
wenzelm@12272
|
320 |
|
skalberg@15531
|
321 |
val loc_mixfix = $$$ "(" -- $$$ "structure" -- !!! ($$$ ")") >> K NONE || opt_mixfix >> SOME;
|
ballarin@16169
|
322 |
val loc_keyword = $$$ "fixes" || $$$ "constrains" || $$$ "assumes" ||
|
ballarin@16169
|
323 |
$$$ "defines" || $$$ "notes" || $$$ "includes";
|
wenzelm@12272
|
324 |
|
ballarin@15127
|
325 |
val loc_element =
|
ballarin@15127
|
326 |
$$$ "fixes" |-- !!! (and_list1 (name -- Scan.option ($$$ "::" |-- typ) -- loc_mixfix
|
ballarin@15127
|
327 |
>> triple1)) >> Locale.Fixes ||
|
ballarin@16169
|
328 |
$$$ "constrains" |-- !!! (and_list1 (name -- ($$$ "::" |-- typ)))
|
ballarin@16169
|
329 |
>> Locale.Constrains ||
|
ballarin@15127
|
330 |
$$$ "assumes" |-- !!! (and_list1 (opt_thm_name ":" -- Scan.repeat1 propp))
|
ballarin@15127
|
331 |
>> Locale.Assumes ||
|
ballarin@15127
|
332 |
$$$ "defines" |-- !!! (and_list1 (opt_thm_name ":" -- propp'))
|
ballarin@15127
|
333 |
>> Locale.Defines ||
|
ballarin@15127
|
334 |
$$$ "notes" |-- !!! (and_list1 (opt_thm_name "=" -- xthms1))
|
ballarin@15127
|
335 |
>> Locale.Notes;
|
ballarin@15127
|
336 |
|
wenzelm@12272
|
337 |
fun plus1 scan =
|
wenzelm@12272
|
338 |
scan -- Scan.repeat ($$$ "+" |-- Scan.unless loc_keyword (!!! scan)) >> op ::;
|
wenzelm@12272
|
339 |
|
ballarin@16102
|
340 |
val rename = name -- Scan.option mixfix';
|
ballarin@16102
|
341 |
|
wenzelm@12268
|
342 |
fun expr2 x = (xname >> Locale.Locale || $$$ "(" |-- !!! (expr0 --| $$$ ")")) x
|
ballarin@16102
|
343 |
and expr1 x = (expr2 -- Scan.repeat1 (maybe rename) >> Locale.Rename || expr2) x
|
wenzelm@12272
|
344 |
and expr0 x = (plus1 expr1 >> (fn [e] => e | es => Locale.Merge es)) x;
|
wenzelm@12268
|
345 |
|
wenzelm@12272
|
346 |
in
|
wenzelm@12272
|
347 |
|
ballarin@16736
|
348 |
val locale_target = ($$$ "(" -- $$$ "in") |-- !!! (xname --| $$$ ")");
|
ballarin@16736
|
349 |
val opt_locale_target = Scan.option locale_target;
|
wenzelm@12272
|
350 |
val locale_expr = expr0;
|
wenzelm@12942
|
351 |
val locale_keyword = loc_keyword;
|
wenzelm@12047
|
352 |
|
ballarin@15127
|
353 |
val locale_element = group "locale element" loc_element;
|
ballarin@15127
|
354 |
|
ballarin@15127
|
355 |
val locale_elem_or_expr = group "locale element or includes"
|
ballarin@15127
|
356 |
(loc_element >> Locale.Elem ||
|
wenzelm@12955
|
357 |
$$$ "includes" |-- !!! locale_expr >> Locale.Expr);
|
wenzelm@12272
|
358 |
|
wenzelm@12272
|
359 |
end;
|
wenzelm@12047
|
360 |
|
wenzelm@12047
|
361 |
|
wenzelm@5826
|
362 |
(* proof methods *)
|
wenzelm@5826
|
363 |
|
wenzelm@6983
|
364 |
fun is_symid_meth s =
|
wenzelm@9131
|
365 |
s <> "|" andalso s <> "?" andalso s <> "+" andalso T.is_sid s;
|
wenzelm@6983
|
366 |
|
wenzelm@5826
|
367 |
fun meth4 x =
|
wenzelm@5877
|
368 |
(position (xname >> rpair []) >> (Method.Source o Args.src) ||
|
wenzelm@6983
|
369 |
$$$ "(" |-- !!! (meth0 --| $$$ ")")) x
|
wenzelm@5826
|
370 |
and meth3 x =
|
wenzelm@5826
|
371 |
(meth4 --| $$$ "?" >> Method.Try ||
|
wenzelm@5826
|
372 |
meth4 --| $$$ "+" >> Method.Repeat1 ||
|
wenzelm@5940
|
373 |
meth4) x
|
wenzelm@5940
|
374 |
and meth2 x =
|
wenzelm@6983
|
375 |
(position (xname -- args1 is_symid_meth false) >> (Method.Source o Args.src) ||
|
wenzelm@5826
|
376 |
meth3) x
|
wenzelm@5826
|
377 |
and meth1 x = (enum1 "," meth2 >> (fn [m] => m | ms => Method.Then ms)) x
|
wenzelm@5826
|
378 |
and meth0 x = (enum1 "|" meth1 >> (fn [m] => m | ms => Method.Orelse ms)) x;
|
wenzelm@5826
|
379 |
|
wenzelm@6558
|
380 |
val method = meth3;
|
wenzelm@5826
|
381 |
|
wenzelm@5826
|
382 |
|
wenzelm@5826
|
383 |
end;
|