wenzelm@240
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(* Title: Pure/Syntax/syn_ext.ML
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wenzelm@240
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ID: $Id$
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wenzelm@911
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Author: Markus Wenzel and Carsten Clasohm, TU Muenchen
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wenzelm@240
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wenzelm@240
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Syntax extension (internal interface).
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wenzelm@240
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*)
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wenzelm@240
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wenzelm@240
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signature SYN_EXT0 =
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wenzelm@4050
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sig
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wenzelm@6760
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val dddot_indexname: indexname
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wenzelm@6760
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val constrainC: string
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wenzelm@240
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val typeT: typ
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wenzelm@5690
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val max_pri: int
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wenzelm@4050
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end;
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wenzelm@240
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wenzelm@240
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signature SYN_EXT =
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wenzelm@4050
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sig
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wenzelm@240
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include SYN_EXT0
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paulson@1510
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val logic: string
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paulson@1510
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val args: string
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paulson@1510
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val cargs: string
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paulson@1510
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val any: string
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paulson@1510
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val sprop: string
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paulson@1510
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val typ_to_nonterm: typ -> string
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paulson@1510
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datatype xsymb =
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paulson@1510
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Delim of string |
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paulson@1510
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Argument of string * int |
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paulson@1510
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Space of string |
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paulson@1510
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Bg of int | Brk of int | En
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paulson@1510
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datatype xprod = XProd of string * xsymb list * string * int
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paulson@1510
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val chain_pri: int
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wenzelm@4701
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val delims_of: xprod list -> string list list
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paulson@1510
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datatype mfix = Mfix of string * typ * string * int list * int
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paulson@1510
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datatype syn_ext =
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paulson@1510
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SynExt of {
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paulson@1510
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logtypes: string list,
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paulson@1510
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xprods: xprod list,
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paulson@1510
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consts: string list,
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wenzelm@2913
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prmodes: string list,
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paulson@1510
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parse_ast_translation: (string * (Ast.ast list -> Ast.ast)) list,
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paulson@1510
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parse_rules: (Ast.ast * Ast.ast) list,
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paulson@1510
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parse_translation: (string * (term list -> term)) list,
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wenzelm@4146
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print_translation: (string * (bool -> typ -> term list -> term)) list,
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paulson@1510
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print_rules: (Ast.ast * Ast.ast) list,
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wenzelm@2694
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print_ast_translation: (string * (Ast.ast list -> Ast.ast)) list,
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wenzelm@6322
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token_translation: (string * string * (string -> string * real)) list}
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wenzelm@4054
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val mfix_args: string -> int
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paulson@1510
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val mk_syn_ext: bool -> string list -> mfix list ->
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paulson@1510
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string list -> (string * (Ast.ast list -> Ast.ast)) list *
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paulson@1510
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(string * (term list -> term)) list *
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wenzelm@4146
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(string * (bool -> typ -> term list -> term)) list * (string * (Ast.ast list -> Ast.ast)) list
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wenzelm@6322
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-> (string * string * (string -> string * real)) list
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paulson@1510
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-> (Ast.ast * Ast.ast) list * (Ast.ast * Ast.ast) list -> syn_ext
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paulson@1510
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val syn_ext: string list -> mfix list -> string list ->
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paulson@1510
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(string * (Ast.ast list -> Ast.ast)) list * (string * (term list -> term)) list *
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wenzelm@4146
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(string * (bool -> typ -> term list -> term)) list * (string * (Ast.ast list -> Ast.ast)) list
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wenzelm@6322
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-> (string * string * (string -> string * real)) list
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paulson@1510
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-> (Ast.ast * Ast.ast) list * (Ast.ast * Ast.ast) list -> syn_ext
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paulson@1510
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val syn_ext_logtypes: string list -> syn_ext
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paulson@1510
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val syn_ext_const_names: string list -> string list -> syn_ext
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paulson@1510
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val syn_ext_rules: string list -> (Ast.ast * Ast.ast) list * (Ast.ast * Ast.ast) list -> syn_ext
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wenzelm@4146
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val fix_tr': (term list -> term) -> bool -> typ -> term list -> term
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paulson@1510
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val syn_ext_trfuns: string list ->
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paulson@1510
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(string * (Ast.ast list -> Ast.ast)) list * (string * (term list -> term)) list *
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paulson@1510
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(string * (term list -> term)) list * (string * (Ast.ast list -> Ast.ast)) list
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paulson@1510
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-> syn_ext
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wenzelm@4146
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val syn_ext_trfunsT: string list ->
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wenzelm@4146
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(string * (bool -> typ -> term list -> term)) list -> syn_ext
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wenzelm@2694
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val syn_ext_tokentrfuns: string list
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wenzelm@6322
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-> (string * string * (string -> string * real)) list -> syn_ext
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paulson@1510
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val pure_ext: syn_ext
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wenzelm@4050
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end;
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wenzelm@240
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paulson@1510
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structure SynExt : SYN_EXT =
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wenzelm@240
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struct
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wenzelm@2694
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wenzelm@240
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(** misc definitions **)
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wenzelm@240
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wenzelm@7472
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val dddot_indexname = ("dddot", 0);
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wenzelm@6760
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val constrainC = "_constrain";
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wenzelm@6760
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wenzelm@6760
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wenzelm@240
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(* syntactic categories *)
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wenzelm@240
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val logic = "logic";
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wenzelm@240
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val logicT = Type (logic, []);
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wenzelm@240
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wenzelm@240
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val args = "args";
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clasohm@1178
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val cargs = "cargs";
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wenzelm@240
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clasohm@330
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val typeT = Type ("type", []);
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clasohm@330
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clasohm@764
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val sprop = "#prop";
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clasohm@764
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val spropT = Type (sprop, []);
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wenzelm@240
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clasohm@764
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val any = "any";
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clasohm@624
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val anyT = Type (any, []);
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clasohm@624
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wenzelm@780
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wenzelm@240
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wenzelm@240
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(** datatype xprod **)
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wenzelm@240
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wenzelm@240
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(*Delim s: delimiter s
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wenzelm@240
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Argument (s, p): nonterminal s requiring priority >= p, or valued token
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wenzelm@240
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Space s: some white space for printing
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wenzelm@240
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Bg, Brk, En: blocks and breaks for pretty printing*)
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wenzelm@240
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wenzelm@240
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datatype xsymb =
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wenzelm@240
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Delim of string |
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wenzelm@240
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Argument of string * int |
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wenzelm@240
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Space of string |
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wenzelm@240
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Bg of int | Brk of int | En;
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wenzelm@240
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wenzelm@240
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wenzelm@240
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(*XProd (lhs, syms, c, p):
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wenzelm@240
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lhs: name of nonterminal on the lhs of the production
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wenzelm@240
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syms: list of symbols on the rhs of the production
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wenzelm@240
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c: head of parse tree
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wenzelm@240
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p: priority of this production*)
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wenzelm@240
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wenzelm@240
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datatype xprod = XProd of string * xsymb list * string * int;
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wenzelm@240
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wenzelm@240
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val max_pri = 1000; (*maximum legal priority*)
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wenzelm@240
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val chain_pri = ~1; (*dummy for chain productions*)
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wenzelm@240
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wenzelm@240
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wenzelm@240
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(* delims_of *)
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wenzelm@240
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wenzelm@240
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fun delims_of xprods =
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wenzelm@240
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let
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wenzelm@240
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fun del_of (Delim s) = Some s
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wenzelm@240
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| del_of _ = None;
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wenzelm@240
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wenzelm@240
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fun dels_of (XProd (_, xsymbs, _, _)) =
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wenzelm@240
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mapfilter del_of xsymbs;
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wenzelm@240
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in
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wenzelm@4701
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map Symbol.explode (distinct (flat (map dels_of xprods)))
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wenzelm@240
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end;
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wenzelm@240
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wenzelm@240
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wenzelm@240
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wenzelm@240
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(** datatype mfix **)
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wenzelm@240
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wenzelm@240
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(*Mfix (sy, ty, c, ps, p):
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wenzelm@240
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sy: rhs of production as symbolic string
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wenzelm@240
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ty: type description of production
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wenzelm@240
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c: head of parse tree
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wenzelm@240
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ps: priorities of arguments in sy
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wenzelm@240
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p: priority of production*)
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wenzelm@240
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wenzelm@240
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datatype mfix = Mfix of string * typ * string * int list * int;
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wenzelm@240
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wenzelm@240
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wenzelm@240
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(* typ_to_nonterm *)
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wenzelm@240
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clasohm@865
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fun typ_to_nt _ (Type (c, _)) = c
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clasohm@865
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| typ_to_nt default _ = default;
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clasohm@865
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clasohm@764
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(*get nonterminal for rhs*)
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clasohm@865
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val typ_to_nonterm = typ_to_nt any;
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wenzelm@240
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clasohm@764
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(*get nonterminal for lhs*)
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clasohm@865
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val typ_to_nonterm1 = typ_to_nt logic;
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wenzelm@240
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wenzelm@240
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wenzelm@4701
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(* read_mixfix, mfix_args *)
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wenzelm@4050
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wenzelm@4050
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local
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wenzelm@4050
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fun is_meta c = c mem ["(", ")", "/", "_"];
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wenzelm@4050
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wenzelm@4701
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val scan_delim_char =
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wenzelm@4701
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$$ "'" |-- Scan.one ((not o Symbol.is_blank) andf Symbol.not_eof) ||
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wenzelm@4701
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Scan.one ((not o is_meta) andf (not o Symbol.is_blank) andf Symbol.not_eof);
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wenzelm@4050
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wenzelm@4050
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val scan_sym =
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wenzelm@4050
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$$ "_" >> K (Argument ("", 0)) ||
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wenzelm@4701
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$$ "(" |-- Scan.any Symbol.is_digit >> (Bg o #1 o Term.read_int) ||
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wenzelm@4050
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$$ ")" >> K En ||
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wenzelm@4050
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$$ "/" -- $$ "/" >> K (Brk ~1) ||
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wenzelm@4701
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$$ "/" |-- Scan.any Symbol.is_blank >> (Brk o length) ||
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wenzelm@4701
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Scan.any1 Symbol.is_blank >> (Space o implode) ||
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wenzelm@4701
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Scan.repeat1 scan_delim_char >> (Delim o implode);
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wenzelm@4050
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wenzelm@4050
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val scan_symb =
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wenzelm@4050
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scan_sym >> Some ||
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wenzelm@4701
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$$ "'" -- Scan.one Symbol.is_blank >> K None;
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wenzelm@4050
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wenzelm@4701
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val scan_symbs = Scan.repeat scan_symb --| Scan.ahead (Scan.one (not_equal "'"));
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wenzelm@5870
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val read_symbs = mapfilter I o the o Scan.read Symbol.stopper scan_symbs;
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wenzelm@4050
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in
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wenzelm@4701
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val read_mixfix = read_symbs o Symbol.explode;
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wenzelm@4050
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end;
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wenzelm@4050
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wenzelm@4054
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fun mfix_args sy =
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wenzelm@4701
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foldl (fn (i, Argument _) => i + 1 | (i, _) => i) (0, read_mixfix sy);
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wenzelm@4050
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wenzelm@4050
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wenzelm@240
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(* mfix_to_xprod *)
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wenzelm@240
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clasohm@764
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fun mfix_to_xprod convert logtypes (Mfix (sy, typ, const, pris, pri)) =
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wenzelm@240
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let
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wenzelm@240
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fun err msg =
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wenzelm@4050
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(if msg = "" then () else error_msg msg;
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wenzelm@4050
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error ("in mixfix annotation " ^ quote sy ^ " for " ^ quote const));
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wenzelm@240
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wenzelm@240
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fun check_pri p =
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wenzelm@240
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if p >= 0 andalso p <= max_pri then ()
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wenzelm@4050
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else err ("Precedence out of range: " ^ string_of_int p);
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wenzelm@240
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wenzelm@240
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fun blocks_ok [] 0 = true
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wenzelm@240
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| blocks_ok [] _ = false
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wenzelm@240
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| blocks_ok (Bg _ :: syms) n = blocks_ok syms (n + 1)
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wenzelm@240
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| blocks_ok (En :: _) 0 = false
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wenzelm@240
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| blocks_ok (En :: syms) n = blocks_ok syms (n - 1)
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wenzelm@240
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| blocks_ok (_ :: syms) n = blocks_ok syms n;
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wenzelm@240
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wenzelm@240
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218 |
fun check_blocks syms =
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wenzelm@240
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219 |
if blocks_ok syms 0 then ()
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wenzelm@4050
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else err "Unbalanced block parentheses";
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wenzelm@240
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wenzelm@240
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wenzelm@240
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val cons_fst = apfst o cons;
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wenzelm@240
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wenzelm@240
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225 |
fun add_args [] ty [] = ([], typ_to_nonterm1 ty)
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wenzelm@4050
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| add_args [] _ _ = err "Too many precedences"
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wenzelm@240
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| add_args (Argument _ :: syms) (Type ("fun", [ty, tys])) [] =
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wenzelm@240
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228 |
cons_fst (Argument (typ_to_nonterm ty, 0)) (add_args syms tys [])
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wenzelm@240
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| add_args (Argument _ :: syms) (Type ("fun", [ty, tys])) (p :: ps) =
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wenzelm@240
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230 |
cons_fst (Argument (typ_to_nonterm ty, p)) (add_args syms tys ps)
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wenzelm@240
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| add_args (Argument _ :: _) _ _ =
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wenzelm@4050
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232 |
err "More arguments than in corresponding type"
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wenzelm@240
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233 |
| add_args (sym :: syms) ty ps = cons_fst sym (add_args syms ty ps);
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wenzelm@240
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234 |
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wenzelm@240
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235 |
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wenzelm@240
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236 |
fun is_arg (Argument _) = true
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wenzelm@240
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237 |
| is_arg _ = false;
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wenzelm@240
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238 |
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wenzelm@240
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239 |
fun is_term (Delim _) = true
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wenzelm@5690
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240 |
| is_term (Argument (s, _)) = Lexicon.is_terminal s
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wenzelm@240
|
241 |
| is_term _ = false;
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wenzelm@240
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242 |
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wenzelm@240
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243 |
fun rem_pri (Argument (s, _)) = Argument (s, chain_pri)
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wenzelm@240
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244 |
| rem_pri sym = sym;
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wenzelm@240
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245 |
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clasohm@764
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246 |
fun is_delim (Delim _) = true
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clasohm@764
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247 |
| is_delim _ = false;
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clasohm@764
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248 |
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wenzelm@4054
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249 |
fun logify_types copy_prod (a as (Argument (s, p))) =
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wenzelm@4054
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250 |
if s mem logtypes then Argument (logic, p) else a
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wenzelm@4054
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251 |
| logify_types _ a = a;
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wenzelm@240
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252 |
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wenzelm@2364
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253 |
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wenzelm@4701
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254 |
val raw_symbs = read_mixfix sy handle ERROR => err "";
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wenzelm@240
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255 |
val (symbs, lhs) = add_args raw_symbs typ pris;
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wenzelm@2364
|
256 |
val copy_prod =
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wenzelm@2364
|
257 |
lhs mem ["prop", "logic"]
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wenzelm@2364
|
258 |
andalso const <> ""
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wenzelm@2364
|
259 |
andalso not (null symbs)
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wenzelm@2364
|
260 |
andalso not (exists is_delim symbs);
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wenzelm@2364
|
261 |
val lhs' =
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wenzelm@2364
|
262 |
if convert andalso not copy_prod then
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wenzelm@2364
|
263 |
(if lhs mem logtypes then logic
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wenzelm@2364
|
264 |
else if lhs = "prop" then sprop else lhs)
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wenzelm@2364
|
265 |
else lhs;
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wenzelm@4054
|
266 |
val symbs' = map (logify_types copy_prod) symbs;
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clasohm@764
|
267 |
val xprod = XProd (lhs', symbs', const, pri);
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wenzelm@240
|
268 |
in
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wenzelm@240
|
269 |
seq check_pri pris;
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wenzelm@240
|
270 |
check_pri pri;
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clasohm@764
|
271 |
check_blocks symbs';
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wenzelm@240
|
272 |
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wenzelm@5690
|
273 |
if Lexicon.is_terminal lhs' then err ("Illegal lhs: " ^ lhs')
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wenzelm@240
|
274 |
else if const <> "" then xprod
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clasohm@764
|
275 |
else if length (filter is_arg symbs') <> 1 then
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wenzelm@4050
|
276 |
err "Copy production must have exactly one argument"
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clasohm@764
|
277 |
else if exists is_term symbs' then xprod
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clasohm@764
|
278 |
else XProd (lhs', map rem_pri symbs', "", chain_pri)
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wenzelm@240
|
279 |
end;
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wenzelm@240
|
280 |
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wenzelm@240
|
281 |
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wenzelm@240
|
282 |
(** datatype syn_ext **)
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wenzelm@240
|
283 |
|
wenzelm@240
|
284 |
datatype syn_ext =
|
wenzelm@240
|
285 |
SynExt of {
|
clasohm@764
|
286 |
logtypes: string list,
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wenzelm@240
|
287 |
xprods: xprod list,
|
wenzelm@240
|
288 |
consts: string list,
|
wenzelm@2913
|
289 |
prmodes: string list,
|
paulson@1510
|
290 |
parse_ast_translation: (string * (Ast.ast list -> Ast.ast)) list,
|
paulson@1510
|
291 |
parse_rules: (Ast.ast * Ast.ast) list,
|
wenzelm@240
|
292 |
parse_translation: (string * (term list -> term)) list,
|
wenzelm@4146
|
293 |
print_translation: (string * (bool -> typ -> term list -> term)) list,
|
paulson@1510
|
294 |
print_rules: (Ast.ast * Ast.ast) list,
|
wenzelm@2694
|
295 |
print_ast_translation: (string * (Ast.ast list -> Ast.ast)) list,
|
wenzelm@6322
|
296 |
token_translation: (string * string * (string -> string * real)) list}
|
wenzelm@240
|
297 |
|
wenzelm@240
|
298 |
|
wenzelm@240
|
299 |
(* syn_ext *)
|
wenzelm@240
|
300 |
|
wenzelm@2694
|
301 |
fun mk_syn_ext convert logtypes mfixes consts trfuns tokentrfuns rules =
|
wenzelm@240
|
302 |
let
|
wenzelm@240
|
303 |
val (parse_ast_translation, parse_translation, print_translation,
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wenzelm@240
|
304 |
print_ast_translation) = trfuns;
|
wenzelm@240
|
305 |
val (parse_rules, print_rules) = rules;
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clasohm@764
|
306 |
val logtypes' = logtypes \ "prop";
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wenzelm@240
|
307 |
|
clasohm@624
|
308 |
val mfix_consts = distinct (map (fn (Mfix (_, _, c, _, _)) => c) mfixes);
|
clasohm@764
|
309 |
val xprods = map (mfix_to_xprod convert logtypes') mfixes;
|
wenzelm@240
|
310 |
in
|
wenzelm@240
|
311 |
SynExt {
|
clasohm@764
|
312 |
logtypes = logtypes',
|
clasohm@624
|
313 |
xprods = xprods,
|
wenzelm@11546
|
314 |
consts = consts union_string mfix_consts,
|
wenzelm@2913
|
315 |
prmodes = distinct (map (fn (m, _, _) => m) tokentrfuns),
|
wenzelm@240
|
316 |
parse_ast_translation = parse_ast_translation,
|
wenzelm@240
|
317 |
parse_rules = parse_rules,
|
wenzelm@240
|
318 |
parse_translation = parse_translation,
|
wenzelm@240
|
319 |
print_translation = print_translation,
|
wenzelm@240
|
320 |
print_rules = print_rules,
|
wenzelm@2694
|
321 |
print_ast_translation = print_ast_translation,
|
wenzelm@2694
|
322 |
token_translation = tokentrfuns}
|
wenzelm@240
|
323 |
end;
|
wenzelm@240
|
324 |
|
wenzelm@2382
|
325 |
|
clasohm@764
|
326 |
val syn_ext = mk_syn_ext true;
|
wenzelm@240
|
327 |
|
clasohm@764
|
328 |
fun syn_ext_logtypes logtypes =
|
wenzelm@2694
|
329 |
syn_ext logtypes [] [] ([], [], [], []) [] ([], []);
|
wenzelm@555
|
330 |
|
clasohm@764
|
331 |
fun syn_ext_const_names logtypes cs =
|
wenzelm@2694
|
332 |
syn_ext logtypes [] cs ([], [], [], []) [] ([], []);
|
wenzelm@240
|
333 |
|
clasohm@764
|
334 |
fun syn_ext_rules logtypes rules =
|
wenzelm@2694
|
335 |
syn_ext logtypes [] [] ([], [], [], []) [] rules;
|
wenzelm@240
|
336 |
|
wenzelm@4146
|
337 |
fun fix_tr' f _ _ ts = f ts;
|
wenzelm@2382
|
338 |
|
wenzelm@2382
|
339 |
fun syn_ext_trfuns logtypes (atrs, trs, tr's, atr's) =
|
wenzelm@2694
|
340 |
syn_ext logtypes [] [] (atrs, trs, map (apsnd fix_tr') tr's, atr's) [] ([], []);
|
wenzelm@2382
|
341 |
|
wenzelm@2382
|
342 |
fun syn_ext_trfunsT logtypes tr's =
|
wenzelm@2694
|
343 |
syn_ext logtypes [] [] ([], [], tr's, []) [] ([], []);
|
wenzelm@2694
|
344 |
|
wenzelm@2694
|
345 |
fun syn_ext_tokentrfuns logtypes tokentrfuns =
|
wenzelm@2694
|
346 |
syn_ext logtypes [] [] ([], [], [], []) tokentrfuns ([], []);
|
wenzelm@2382
|
347 |
|
wenzelm@240
|
348 |
|
clasohm@764
|
349 |
(* pure_ext *)
|
clasohm@764
|
350 |
|
clasohm@764
|
351 |
val pure_ext = mk_syn_ext false []
|
clasohm@764
|
352 |
[Mfix ("_", spropT --> propT, "", [0], 0),
|
clasohm@764
|
353 |
Mfix ("_", logicT --> anyT, "", [0], 0),
|
clasohm@764
|
354 |
Mfix ("_", spropT --> anyT, "", [0], 0),
|
clasohm@764
|
355 |
Mfix ("'(_')", logicT --> logicT, "", [0], max_pri),
|
clasohm@764
|
356 |
Mfix ("'(_')", spropT --> spropT, "", [0], max_pri),
|
clasohm@764
|
357 |
Mfix ("_::_", [logicT, typeT] ---> logicT, "_constrain", [4, 0], 3),
|
clasohm@764
|
358 |
Mfix ("_::_", [spropT, typeT] ---> spropT, "_constrain", [4, 0], 3)]
|
clasohm@764
|
359 |
[]
|
clasohm@764
|
360 |
([], [], [], [])
|
wenzelm@2694
|
361 |
[]
|
clasohm@764
|
362 |
([], []);
|
wenzelm@240
|
363 |
|
wenzelm@240
|
364 |
end;
|