src/Tools/isac/ME/mstools.sml
branchisac-update-Isa09-2
changeset 37947 22235e4dbe5f
parent 37946 a28b5fc129b7
child 37948 ed85f172569c
     1.1 --- a/src/Tools/isac/ME/mstools.sml	Wed Aug 25 15:15:01 2010 +0200
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,969 +0,0 @@
     1.4 -(* Types and tools for 'modeling' und 'specifying' to be used in
     1.5 -   modspec.sml. The types are separated from calchead.sml into this file,
     1.6 -   because some of them are stored in the calc-tree, and thus are required
     1.7 -   _before_ ctree.sml. 
     1.8 -   author: Walther Neuper
     1.9 -   (c) due to copyright terms
    1.10 -
    1.11 -use"ME/mstools.sml" (*re-evaluate sml/ from scratch!*);
    1.12 -use"mstools.sml";
    1.13 -12345678901234567890123456789012345678901234567890123456789012345678901234567890
    1.14 -        10        20        30        40        50        60        70        80
    1.15 -*)
    1.16 -
    1.17 -signature SPECIFY_TOOLS =
    1.18 -  sig
    1.19 -    type envv
    1.20 -    datatype
    1.21 -      item =
    1.22 -          Correct of cterm'
    1.23 -        | False of cterm'
    1.24 -        | Incompl of cterm'
    1.25 -        | Missing of cterm'
    1.26 -        | Superfl of string
    1.27 -        | SyntaxE of string
    1.28 -        | TypeE of string
    1.29 -    val item2str : item -> string
    1.30 -    type itm
    1.31 -    val itm2str_ : Proof.context -> itm -> string
    1.32 -    datatype
    1.33 -      itm_ =
    1.34 -          Cor of (term * term list) * (term * term list)
    1.35 -        | Inc of (term * term list) * (term * term list)
    1.36 -        | Mis of term * term
    1.37 -        | Par of cterm'
    1.38 -        | Sup of term * term list
    1.39 -        | Syn of cterm'
    1.40 -        | Typ of cterm'
    1.41 -    val itm_2str : itm_ -> string
    1.42 -    val itm_2str_ : Proof.context -> itm_ -> string
    1.43 -    val itms2str_ : Proof.context -> itm list -> string
    1.44 -    type 'a ppc
    1.45 -    val ppc2str :
    1.46 -       {Find: string list, With: string list, Given: string list,
    1.47 -         Where: string list, Relate: string list} -> string
    1.48 -    datatype
    1.49 -      match =
    1.50 -          Matches of pblID * item ppc
    1.51 -        | NoMatch of pblID * item ppc
    1.52 -    val match2str : match -> string
    1.53 -    datatype
    1.54 -      match_ =
    1.55 -          Match_ of pblID * (itm list * (bool * term) list)
    1.56 -        | NoMatch_
    1.57 -    val matchs2str : match list -> string
    1.58 -    type ori
    1.59 -    val ori2str : ori -> string
    1.60 -    val oris2str : ori list -> string
    1.61 -    type preori
    1.62 -    val preori2str : preori -> string
    1.63 -    val preoris2str : preori list -> string
    1.64 -    type penv
    1.65 -    (* val penv2str_ : Proof.context -> penv -> string *)
    1.66 -    type vats
    1.67 -    (*----------------------------------------------------------------------*)
    1.68 -    val all_ts_in : itm_ list -> term list
    1.69 -    val check_preconds :
    1.70 -       'a ->
    1.71 -       rls ->
    1.72 -       term list -> itm list -> (bool * term) list
    1.73 -    val check_preconds' :
    1.74 -       rls ->
    1.75 -       term list ->
    1.76 -       itm list -> 'a -> (bool * term) list
    1.77 -   (* val chkpre2item : rls -> term -> bool * item  *)
    1.78 -    val pres2str : (bool * term) list -> string
    1.79 -   (* val evalprecond : rls -> term -> bool * term  *)
    1.80 -   (* val cnt : itm list -> int -> int * int *)
    1.81 -    val comp_dts : theory -> term * term list -> term
    1.82 -    val comp_dts' : term * term list -> term
    1.83 -    val comp_dts'' : term * term list -> string
    1.84 -    val comp_ts : term * term list -> term
    1.85 -    val d_in : itm_ -> term
    1.86 -    val de_item : item -> cterm'
    1.87 -    val dest_list : term * term list -> term list (* for testing *)
    1.88 -    val dest_list' : term -> term list
    1.89 -    val dts2str : term * term list -> string
    1.90 -    val e_itm : itm
    1.91 -  (*  val e_listBool : term  *)
    1.92 -  (*  val e_listReal : term  *)
    1.93 -    val e_ori : ori
    1.94 -    val e_ori_ : ori
    1.95 -    val empty_ppc : item ppc
    1.96 -   (* val empty_ppc_ct' : cterm' ppc *)
    1.97 -   (* val getval : term * term list -> term * term *)
    1.98 -   (*val head_precond :
    1.99 -       domID * pblID * 'a ->
   1.100 -       term option ->
   1.101 -       rls ->
   1.102 -       term list ->
   1.103 -       itm list -> 'b -> term * (bool * term) list*)
   1.104 -   (* val init_item : string -> item *)
   1.105 -   (* val is_matches : match -> bool *)
   1.106 -   (* val is_matches_ : match_ -> bool *)
   1.107 -    val is_var : term -> bool
   1.108 -   (* val item_ppc :
   1.109 -       string ppc -> item ppc  *)
   1.110 -    val itemppc2str : item ppc -> string
   1.111 -   (* val matches_pblID : match -> pblID *)
   1.112 -    val max2 : ('a * int) list -> 'a * int
   1.113 -    val max_vt : itm list -> int
   1.114 -    val mk_e : itm_ -> (term * term) list
   1.115 -    val mk_en : int -> itm -> (term * term) list
   1.116 -    val mk_env : itm list -> (term * term) list
   1.117 -    val mkval : 'a -> term list -> term
   1.118 -    val mkval' : term list -> term
   1.119 -   (* val pblID_of_match : match -> pblID *)
   1.120 -    val pbl_ids : Proof.context -> term -> term -> term list
   1.121 -    val pbl_ids' : 'a -> term -> term list -> term list
   1.122 -   (* val pen2str : theory -> term * term list -> string *)
   1.123 -    val penvval_in : itm_ -> term list
   1.124 -    val refined : match list -> pblID
   1.125 -    val refined_ :
   1.126 -       match_ list -> match_ option
   1.127 -  (*  val refined_IDitms :
   1.128 -       match list -> match option  *)
   1.129 -    val split_dts : 'a -> term -> term * term list
   1.130 -    val split_dts' : term * term -> term list
   1.131 -  (*  val take_apart : term -> term list  *)
   1.132 -  (*  val take_apart_inv : term list -> term *)
   1.133 -    val ts_in : itm_ -> term list
   1.134 -   (* val unique : term  *)
   1.135 -    val untouched : itm list -> bool
   1.136 -    val upd :
   1.137 -       Proof.context ->
   1.138 -       (''a * (''b * term list) list) list ->
   1.139 -       term ->
   1.140 -       ''b * term -> ''a -> ''a * (''b * term list) list
   1.141 -    val upd_envv :
   1.142 -       Proof.context ->
   1.143 -       envv ->
   1.144 -       vats ->
   1.145 -       term -> term -> term -> envv
   1.146 -    val upd_penv :
   1.147 -       Proof.context ->
   1.148 -       (''a * term list) list ->
   1.149 -       term -> ''a * term -> (''a * term list) list
   1.150 -   (* val upds_envv :
   1.151 -       Proof.context ->
   1.152 -       envv ->
   1.153 -       (vats * term * term * term) list ->
   1.154 -       envv                         *)
   1.155 -    val vts_cnt : int list -> itm list -> (int * int) list
   1.156 -    val vts_in : itm list -> int list
   1.157 -   (* val w_itms2str_ : Proof.context -> itm list -> unit *)
   1.158 -  end
   1.159 -
   1.160 -(*----------------------------------------------------------*)
   1.161 -structure SpecifyTools : SPECIFY_TOOLS =
   1.162 -struct
   1.163 -(*----------------------------------------------------------*)
   1.164 -val e_listReal = (term_of o the o (parse (theory "Script"))) "[]::(real list)";
   1.165 -val e_listBool = (term_of o the o (parse (theory "Script"))) "[]::(bool list)";
   1.166 -
   1.167 -(*.take list-term apart w.r.t. handling elementwise input.*)
   1.168 -fun take_apart t =
   1.169 -    let val elems = isalist2list t
   1.170 -    in map ((list2isalist (type_of (hd elems))) o single) elems end;
   1.171 -(*val t = str2term "[a, b]";
   1.172 -> val ts = take_apart t; writeln (terms2str ts);
   1.173 -["[a]","[b]"] 
   1.174 -
   1.175 -> t = (take_apart_inv o take_apart) t;
   1.176 -true*)
   1.177 -fun take_apart_inv ts =
   1.178 -    let val elems = (flat o (map isalist2list)) ts;
   1.179 -    in list2isalist (type_of (hd elems)) elems end;
   1.180 -(*val ts = [str2term "[a]", str2term "[b]"];
   1.181 -> val t = take_apart_inv ts; term2str t;
   1.182 -"[a, b]"
   1.183 -
   1.184 -ts = (take_apart o take_apart_inv) ts;
   1.185 -true*)
   1.186 -
   1.187 -
   1.188 -
   1.189 -
   1.190 -(*.revert split_dts only for ts; compare comp_dts.*)
   1.191 -fun comp_ts (d, ts) = 
   1.192 -    if is_list_dsc d
   1.193 -    then if is_list (hd ts)
   1.194 -	 then if is_unl d
   1.195 -	      then (hd ts)            (*e.g. someList [1,3,2]*)
   1.196 -	      else (take_apart_inv ts) 
   1.197 -	 (*             SML[ [a], [b] ]SML --> [a,b]             *)
   1.198 -	 else (hd ts) (*a variable or metavariable for a list*)
   1.199 -    else (hd ts);
   1.200 -(*.revert split_.
   1.201 - WN050903 we do NOT know which is from subtheory, description or term;
   1.202 - typecheck thus may lead to TYPE-error 'unknown constant';
   1.203 - solution: typecheck with Isac.thy; i.e. arg 'thy' superfluous*)
   1.204 -(*fun comp_dts thy (d,[]) = 
   1.205 -    cterm_of (*(sign_of o assoc_thy) "Isac.thy"*)
   1.206 -	     (theory "Isac")
   1.207 -	     (*comp_dts:FIXXME stay with term for efficiency !!!*)
   1.208 -	     (if is_reall_dsc d then (d $ e_listReal)
   1.209 -	      else if is_booll_dsc d then (d $ e_listBool)
   1.210 -	      else d)
   1.211 -  | comp_dts thy (d,ts) =
   1.212 -    (cterm_of (*(sign_of o assoc_thy) "Isac.thy"*)
   1.213 -	      (theory "Isac")
   1.214 -	      (*comp_dts:FIXXME stay with term for efficiency !!*)
   1.215 -	      (d $ (comp_ts (d, ts)))
   1.216 -       handle _ => raise error ("comp_dts: "^(term2str d)^
   1.217 -				" $ "^(term2str (hd ts))));*)
   1.218 -fun comp_dts thy (d,[]) = 
   1.219 -	     (if is_reall_dsc d then (d $ e_listReal)
   1.220 -	      else if is_booll_dsc d then (d $ e_listBool)
   1.221 -	      else d)
   1.222 -  | comp_dts thy (d,ts) =
   1.223 -	      (d $ (comp_ts (d, ts)))
   1.224 -       handle _ => raise error ("comp_dts: "^(term2str d)^
   1.225 -				" $ "^(term2str (hd ts))); 
   1.226 -(*25.8.03*)
   1.227 -fun comp_dts' (d,[]) = 
   1.228 -    if is_reall_dsc d then (d $ e_listReal)
   1.229 -    else if is_booll_dsc d then (d $ e_listBool)
   1.230 -    else d
   1.231 -  | comp_dts' (d,ts) = (d $ (comp_ts (d, ts)))
   1.232 -       handle _ => raise error ("comp_dts': "^(term2str d)^
   1.233 -				" $ "^(term2str (hd ts))); 
   1.234 -(*val t = str2term "maximum A"; 
   1.235 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.236 -val it = "maximum A" : cterm
   1.237 -> val t = str2term "fixedValues [r=Arbfix]"; 
   1.238 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.239 -"fixedValues [r = Arbfix]"
   1.240 -> val t = str2term "valuesFor [a]"; 
   1.241 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.242 -"valuesFor [a]"
   1.243 -> val t = str2term "valuesFor [a,b]"; 
   1.244 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.245 -"valuesFor [a, b]"
   1.246 -> val t = str2term "relations [A=a*b, (a/2)^^^2 + (b/2)^^^2 = r^^^2]"; 
   1.247 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.248 -relations [A = a * b, (a / 2) ^^^ 2 + (b / 2) ^^^ 2 = r ^^^ 2]"
   1.249 -> val t = str2term "boundVariable a";
   1.250 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.251 -"boundVariable a"
   1.252 -> val t = str2term "interval {x::real. 0 <= x & x <= 2*r}"; 
   1.253 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.254 -"interval {x. 0 <= x & x <= 2 * r}"
   1.255 -
   1.256 -> val t = str2term "equality (sqrt(9+4*x)=sqrt x + sqrt(5+x))"; 
   1.257 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.258 -"equality (sqrt (9 + 4 * x) = sqrt x + sqrt (5 + x))"
   1.259 -> val t = str2term "solveFor x"; 
   1.260 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.261 -"solveFor x"
   1.262 -> val t = str2term "errorBound (eps=0)"; 
   1.263 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.264 -"errorBound (eps = 0)"
   1.265 -> val t = str2term "solutions L";
   1.266 -> val (d,ts) = split_dts thy t; comp_dts thy (d,ts);
   1.267 -"solutions L"
   1.268 -
   1.269 -before 6.5.03:
   1.270 -> val t = (term_of o the o (parse thy)) "testdscforlist [#1]";
   1.271 -> val (d,ts) = split_dts t;
   1.272 -> comp_dts thy (d,ts);
   1.273 -val it = "testdscforlist [#1]" : cterm
   1.274 -
   1.275 -> val t = (term_of o the o (parse thy)) "(A::real)";
   1.276 -> val (d,ts) = split_dts t;
   1.277 -val d = Const ("empty","empty") : term
   1.278 -val ts = [Free ("A","RealDef.real")] : term list
   1.279 -> val t = (term_of o the o (parse thy)) "[R=(R::real)]";
   1.280 -> val (d,ts) = split_dts t;
   1.281 -val d = Const ("empty","empty") : term
   1.282 -val ts = [Const # $ Free # $ Free (#,#)] : term list
   1.283 -> val t = (term_of o the o (parse thy)) "[#1,#2]";
   1.284 -> val (d,ts) = split_dts t;
   1.285 -val ts = [Free ("#1","'a"),Free ("#2","'a")] : NOT WANTED
   1.286 -*)
   1.287 -
   1.288 -(*for input_icalhd 11.03*)
   1.289 -fun comp_dts'' (d,[]) = 
   1.290 -    if is_reall_dsc d then term2str (d $ e_listReal)
   1.291 -    else if is_booll_dsc d then term2str (d $ e_listBool)
   1.292 -    else term2str d
   1.293 -  | comp_dts'' (d,ts) = term2str (d $ (comp_ts (d, ts)))
   1.294 -       handle _ => raise error ("comp_dts'': "^(term2str d)^
   1.295 -				" $ "^(term2str (hd ts))); 
   1.296 -
   1.297 -
   1.298 -
   1.299 -
   1.300 -
   1.301 -
   1.302 -(* this may decompose an object-language isa-list;
   1.303 -   use only, if description is not available, eg. not input ?WN:14.5.03 ??!?*)
   1.304 -fun dest_list' t = if is_list t then isalist2list t  else [t];
   1.305 -
   1.306 -(*fun is_metavar (Free (str, _)) =
   1.307 -    if (last_elem o explode) str = "_" then true else false
   1.308 -  | is_metavar _ = false;*)
   1.309 -fun is_var (Free _) = true
   1.310 -  | is_var _ = false;
   1.311 -
   1.312 -(*.special handling for lists. ?WN:14.5.03 ??!?*)
   1.313 -fun dest_list (d,ts) = 
   1.314 -  let fun dest t = 
   1.315 -    if is_list_dsc d andalso not (is_unl d) 
   1.316 -      andalso not (is_var t) (*..for pbt*)
   1.317 -      then isalist2list t  else [t]
   1.318 -  in (flat o (map dest)) ts end;
   1.319 -
   1.320 -
   1.321 -(*.decompose an input into description, terms (ev. elems of lists),
   1.322 -    and the value for the problem-environment; inv to comp_dts .*)
   1.323 -(*WN.8.6.03: corrected with minimal effort,
   1.324 -fn : theory -> term ->
   1.325 -     term *       description
   1.326 -     term list *  lists decomposed for elementwise input
   1.327 -     term list    pbl_ids not _HERE_: dont know which list-elems input*)
   1.328 -fun split_dts thy (t as d $ arg) =
   1.329 -    if is_dsc d
   1.330 -    then if is_list_dsc d
   1.331 -	 then if is_list arg
   1.332 -	      then if is_unl d
   1.333 -		   then (d, [arg])                 (*e.g. someList [1,3,2]*)
   1.334 -		   else (d, take_apart arg)(*[a,b] --> SML[ [a], [b] ]SML*)
   1.335 -	      else (d, [arg])      (*a variable or metavariable for a list*)
   1.336 -	 else (d, [arg])
   1.337 -    else (e_term, dest_list' t(*9.01 ???*))
   1.338 -  | split_dts thy t = (*either dsc or term*)
   1.339 -  let val (h,argl) = strip_comb t
   1.340 -  in if (not o is_dsc) h then (e_term, dest_list' t)
   1.341 -     else (h, dest_list (h,argl))
   1.342 -  end;
   1.343 -(* tests see fun comp_dts 
   1.344 -
   1.345 -> val t = str2term "someList []";
   1.346 -> val (_,ts) = split_dts thy t; writeln (terms2str ts);
   1.347 -["[]"]
   1.348 -> val t = str2term "valuesFor []";
   1.349 -> val (_,ts) = split_dts thy t; writeln (terms2str ts);
   1.350 -["[]"]*)
   1.351 -
   1.352 -(*.version returning ts only.*)
   1.353 -fun split_dts' (d, arg) = 
   1.354 -    if is_dsc d
   1.355 -    then if is_list_dsc d
   1.356 -	 then if is_list arg
   1.357 -	      then if is_unl d
   1.358 -		   then ([arg])                 (*e.g. someList [1,3,2]*)
   1.359 -		   else (take_apart arg)(*[a,b] --> SML[ [a], [b] ]SML*)
   1.360 -	      else ([arg])      (*a variable or metavariable for a list*)
   1.361 -	 else ([arg])
   1.362 -    else (dest_list' arg(*9.01 ???*))
   1.363 -  | split_dts' (d, t) = (*either dsc or term; 14.5.03 only copied*)
   1.364 -  let val (h,argl) = strip_comb t
   1.365 -  in if (not o is_dsc) h then (dest_list' t)
   1.366 -     else (dest_list (h,argl))
   1.367 -  end;
   1.368 -
   1.369 -
   1.370 -
   1.371 -
   1.372 -
   1.373 -(*27.8.01: problem-environment
   1.374 -WN.6.5.03: FIXXME reconsider if penv is worth the effort --
   1.375 -           -- just rerun a whole expl with num/var may show the same ?!
   1.376 -WN.9.5.03: penv-concept stalled, immediately generate script env !
   1.377 -           but [#0, epsilon] only outcommented for eventual reconsideration  
   1.378 -*)
   1.379 -type penv = (term          (*err_*)
   1.380 -	     * (term list) (*[#0, epsilon] 9.5.03 outcommented*)
   1.381 -	     ) list;
   1.382 -fun pen2str ctxt (t, ts) =
   1.383 -    pair2str(Syntax.string_of_term ctxt t,
   1.384 -	     (strs2str' o map (Syntax.string_of_term ctxt)) ts);
   1.385 -fun penv2str_ thy (penv:penv) = (strs2str' o (map (pen2str thy))) penv;
   1.386 -
   1.387 -(*
   1.388 -  9.5.03: still unused, but left for eventual future development*)
   1.389 -type envv = (int * penv) list; (*over variants*)
   1.390 -
   1.391 -(*. 14.9.01: not used after putting penv-values into itm_
   1.392 -      make the result of split_* a value of problem-environment .*)
   1.393 -fun mkval dsc [] = raise error "mkval called with []"
   1.394 -  | mkval dsc [t] = t
   1.395 -  | mkval dsc ts = list2isalist ((type_of o hd) ts) ts;
   1.396 -(*WN.12.12.03*)
   1.397 -fun mkval' x = mkval e_term x;
   1.398 -
   1.399 -
   1.400 -
   1.401 -(*. get the constant value from a penv .*)
   1.402 -fun getval (id, values) = 
   1.403 -    case values of
   1.404 -	[] => raise error ("penv_value: no values in '"^
   1.405 -			   (Syntax.string_of_term (thy2ctxt' "Tools") id))
   1.406 -      | [v] => (id, v)
   1.407 -      | (v1::v2::_) => (case v1 of 
   1.408 -			     Const ("Script.Arbfix",_) => (id, v2)
   1.409 -			   | _ => (id, v1));
   1.410 -(*
   1.411 -  val e_ = (term_of o the o (parse thy)) "e_::bool";
   1.412 -  val ev = (term_of o the o (parse thy)) "#4 + #3 * x^^^#2 = #0";
   1.413 -  val v_ = (term_of o the o (parse thy)) "v_";
   1.414 -  val vv = (term_of o the o (parse thy)) "x";
   1.415 -  val r_ = (term_of o the o (parse thy)) "err_::bool";
   1.416 -  val rv1 = (term_of o the o (parse thy)) "#0";
   1.417 -  val rv2 = (term_of o the o (parse thy)) "eps";
   1.418 -
   1.419 -  val penv = [(e_,[ev]),(v_,[vv]),(r_,[rv2,rv2])]:penv;
   1.420 -  map getval penv;
   1.421 -[(Free ("e_","bool"),
   1.422 -  Const (#,#) $ (# $ # $ (# $ #)) $ Free ("#0","RealDef.real")),
   1.423 - (Free ("v_","RealDef.real"),Free ("x","RealDef.real")),
   1.424 - (Free ("err_","bool"),Free ("#0","RealDef.real"))] : (term * term) list      
   1.425 -*)
   1.426 -
   1.427 -
   1.428 -(*23.3.02 TODO: ideas on redesign of type itm_,type item,type ori,type item ppc
   1.429 -(1) kinds of itms:
   1.430 -  (1.1) untouched: for modeling only dsc displayed(impossible after match_itms)
   1.431 -        =(presently) Mis (? should be Inc initially, and Mis after match_itms?)
   1.432 -  (1.2)  Syn,Typ,Sup: not related to oris
   1.433 -    Syn, Typ (presently) should be accepted in appl_add (instead Error')
   1.434 -    Sup      (presently) should be accepted in appl_add (instead Error')
   1.435 -         _could_ be w.r.t current vat (and then _is_ related to vat
   1.436 -    Mis should _not_ be  made Inc ((presently, by appl_add & match_itms)
   1.437 -- dsc in itm_ is timeconsuming -- keep id for respective queries ?
   1.438 -- order of items in ppc should be stable w.r.t order of itms
   1.439 -
   1.440 -- stepwise input of itms --- match_itms (in one go) ..not coordinated
   1.441 -  - unify code
   1.442 -  - match_itms / match_itms_oris ..2 versions ?!
   1.443 -    (fast, for refine / slow, for modeling)
   1.444 -
   1.445 -- clarify: efficiency <--> simplicity !!!
   1.446 -  ?: shift dsc itm_ -> itm | discard int in ori,itm | take int instead dsc 
   1.447 -    | take int for perserving order of item ppc in itms 
   1.448 -    | make all(!?) handling of itms stable against reordering(?)
   1.449 -    | field in ori ?? (not from fmz!) -- meant for efficiency (not doc!???)
   1.450 -      -"- "#undef" ?= not touched ?= (id,..)
   1.451 ------------------------------------------------------------------
   1.452 -27.3.02:
   1.453 -def: type pbt = (field, (dsc, pid))
   1.454 -
   1.455 -(1) fmz + pbt -> oris
   1.456 -(2) input + oris -> itm
   1.457 -(3) match_itms      : schnell(?) f"ur refine
   1.458 -    match_itms_oris : r"uckmeldung f"ur item ppc
   1.459 -
   1.460 -(1.1) in oris fehlt daher pid: (i,v,f,d,ts,pid)
   1.461 ----------- ^^^^^ --- dh. pbt meist als argument zu viel !!!
   1.462 -
   1.463 -(3.1) abwarten, wie das matchen mehr unterschiedlicher pbt's sich macht;
   1.464 -      wenn Problem pbt v"ollig neue, dann w"are eigentlich n"otig ????:
   1.465 -      (a) (_,_,d1,ts,_):ori + pbt -> (i,vt,d2,ts,pid)  dh.vt neu  ????
   1.466 -      (b) 
   1.467 -*)
   1.468 -
   1.469 -
   1.470 -
   1.471 -
   1.472 -(*the internal representation of a models' item
   1.473 -
   1.474 -  4.9.01: not consistent:
   1.475 -  after Init_Proof 'Inc', but after copy_probl 'Mis' - for same situation
   1.476 -  (involves 'is_error');
   1.477 -  bool in itm really necessary ???*)
   1.478 -datatype itm_ = 
   1.479 -    Cor of (term *              (* description *)
   1.480 -	    (term list)) *      (* for list: elem-wise input *) 
   1.481 -	   (*split_dts <-> comp_dts*)
   1.482 -	   (term * (term list)) (* elem of penv *)
   1.483 -	 (*9.5.03:  ---- is already for script -- penv delayed to future*)
   1.484 -  | Syn of cterm'
   1.485 -  | Typ of cterm'
   1.486 -  | Inc of (term * (term list))	* (term * (term list)) (*lists,
   1.487 -				+ init_pbl WN.11.03 FIXXME: empty penv .. bad
   1.488 -                                init_pbl should return Mis !!!*)
   1.489 -  | Sup of (term * (term list)) (* user-input not found in pbt(+?oris?11.03)*)
   1.490 -  | Mis of (term * term)        (* after re-specification pbt-item not found 
   1.491 -                                   in pbl: only dsc, pid_*)
   1.492 -  | Par of cterm';  (*internal state from fun parsitm*)
   1.493 -
   1.494 -type vats = int list;      (*variants in formalizations*)
   1.495 -
   1.496 -(*.data-type for working on pbl/met-ppc: 
   1.497 -   in pbl initially holds descriptions (only) for user guidance.*)
   1.498 -type itm = 
   1.499 -  int *        (* id  =0 .. untouched - descript (only) from init 
   1.500 -		  23.3.02: seems to correspond to ori (fun insert_ppc)
   1.501 -		           <> maintain order in item ppc?*)
   1.502 -  vats *       (* variants - copy from ori *)
   1.503 -  bool *       (* input on this item is not/complete *)
   1.504 -  string *     (* #Given | #Find | #Relate *)
   1.505 -  itm_;        (*  *)
   1.506 -(* use"ME/sequent.sml";
   1.507 -   *)
   1.508 -val e_itm = (0,[],false,"e_itm",Syn"e_itm"):itm;
   1.509 -(*in CalcTree/Subproblem an 'untouched' model is created
   1.510 -  FIXME.WN.9.03 model should be filled to 'untouched' by Model/Refine_Problem*)
   1.511 -fun untouched (itms: itm list) = 
   1.512 -    foldl and_ (true ,map ((curry op= 0) o #1) itms);
   1.513 -(*> untouched [];
   1.514 -val it = true : bool
   1.515 -> untouched [e_itm];
   1.516 -val it = true : bool
   1.517 -> untouched [e_itm, (1,[],false,"e_itm",Syn "e_itm")];
   1.518 -val it = false : bool*)
   1.519 -
   1.520 -
   1.521 -
   1.522 -
   1.523 -
   1.524 -(* find most frequent variant v in itms *)
   1.525 -
   1.526 -fun vts_in itms = (distinct o flat o (map #2)) (itms:itm list);
   1.527 -
   1.528 -fun cnt itms v = (v,(length o (filter (curry op= v)) o 
   1.529 -		     flat o (map #2)) (itms:itm list));
   1.530 -fun vts_cnt vts itms = map (cnt itms) vts;
   1.531 -fun max2 [] = raise error "max2 of []"
   1.532 -  | max2 (y::ys) =
   1.533 -  let fun mx (a,x) [] = (a,x)
   1.534 -	| mx (a,x) ((b,y)::ys) = 
   1.535 -    if x < y then mx (b,y) ys else mx (a,x) ys;
   1.536 -in mx y ys end;
   1.537 -
   1.538 -(*. find the variant with most items already input .*)
   1.539 -fun max_vt itms = 
   1.540 -    let val vts = (vts_cnt (vts_in itms)) itms;
   1.541 -    in if vts = [] then 0 else (fst o max2) vts end;
   1.542 -
   1.543 -
   1.544 -(* TODO ev. make more efficient by avoiding flat *)
   1.545 -fun mk_e (Cor (_, iv)) = [getval iv]
   1.546 -  | mk_e (Syn _) = []
   1.547 -  | mk_e (Typ _) = [] 
   1.548 -  | mk_e (Inc (_, iv)) = [getval iv]
   1.549 -  | mk_e (Sup _) = []
   1.550 -  | mk_e (Mis _) = [];
   1.551 -fun mk_en vt ((i,vts,b,f,itm_):itm) =
   1.552 -    if member op = vts vt then mk_e itm_ else [];
   1.553 -(*. extract the environment from an item list; 
   1.554 -    takes the variant with most items .*)
   1.555 -fun mk_env itms = 
   1.556 -    let val vt = max_vt itms
   1.557 -    in (flat o (map (mk_en vt))) itms end;
   1.558 -
   1.559 -
   1.560 -
   1.561 -(*. example as provided by an author, complete w.r.t. pbt specified 
   1.562 -    not touched by any user action                                 .*)
   1.563 -type ori = (int *      (* id: 10.3.00ff impl. only <>0 .. touched 
   1.564 -			  21.3.02: insert_ppc needs it ! ?:purpose maintain
   1.565 -				   order in item ppc ???*)
   1.566 -	    vats *     (* variants 21.3.02: related to pbt..discard ?*)
   1.567 -	    string *   (* #Given | #Find | #Relate 21.3.02: discard ?*)
   1.568 -	    term *     (* description *)
   1.569 -	    term list  (* isalist2list t | [t] *)
   1.570 -	    );
   1.571 -val e_ori_ = (0,[],"",e_term,[e_term]):ori;
   1.572 -val e_ori = (0,[],"",e_term,[e_term]):ori;
   1.573 -
   1.574 -fun ori2str ((i,vs,fi,t,ts):ori) = 
   1.575 -    "("^(string_of_int i)^", "^((strs2str o (map string_of_int)) vs)^", "^fi^","^
   1.576 -    (term2str t)^", "^((strs2str o (map term2str)) ts)^")";
   1.577 -val oris2str = 
   1.578 -    let val s = !show_types
   1.579 -	val _ = show_types:= true
   1.580 -	val str = (strs2str' o (map (linefeed o ori2str)))
   1.581 -	val _ = show_types:= s
   1.582 -    in str end;
   1.583 -
   1.584 -(*.an or without leading integer.*)
   1.585 -type preori = (vats *  
   1.586 -	       string *   
   1.587 -	       term *     
   1.588 -	       term list);
   1.589 -fun preori2str ((vs,fi,t,ts):preori) = 
   1.590 -    "("^((strs2str o (map string_of_int)) vs)^", "^fi^", "^
   1.591 -    (term2str t)^", "^((strs2str o (map term2str)) ts)^")";
   1.592 -val preoris2str = (strs2str' o (map (linefeed o preori2str)));
   1.593 -
   1.594 -(*. given the input value (from split_dts)
   1.595 -    make the value in a problem-env according to description-type .*)
   1.596 -(*28.8.01: .nam and .una impl. properly, others copied .. TODO*)
   1.597 -fun pbl_ids ctxt (Const(_,Type("fun",[_,Type("Tools.nam",_)]))) v =
   1.598 -    if is_list v 
   1.599 -    then [v]         (*eg. [r=Arbfix]*)
   1.600 -    else (case v of  (*eg. eps=#0*)
   1.601 -	      (Const ("op =",_) $ l $ r) => [r,l]
   1.602 -	    | _ => raise error ("pbl_ids Tools.nam: no equality "
   1.603 -				^(Syntax.string_of_term ctxt v)))
   1.604 -  | pbl_ids ctxt (Const(_,Type("fun",[_,Type("Tools.una",_)]))) v = [v]
   1.605 -  | pbl_ids ctxt (Const(_,Type("fun",[_,Type("Tools.unl",_)]))) v = [v]
   1.606 -  | pbl_ids ctxt (Const(_,Type("fun",[_,Type("Tools.str",_)]))) v = [v]
   1.607 -  | pbl_ids ctxt (Const(_,Type("fun",[_,Type("Tools.toreal",_)]))) v = [v] 
   1.608 -  | pbl_ids ctxt (Const(_,Type("fun",[_,Type("Tools.toreall",_)])))v = [v] 
   1.609 -  | pbl_ids ctxt (Const(_,Type("fun",[_,Type("Tools.unknown",_)])))v = [v] 
   1.610 -  | pbl_ids ctxt _ v = raise error ("pbl_ids: not implemented for "
   1.611 -				    ^(Syntax.string_of_term ctxt v));
   1.612 -(*
   1.613 -val t as t1 $ t2 = str2term "antiDerivativeName M_b";
   1.614 -pbl_ids ctxt t1 t2;
   1.615 -
   1.616 -  val t = (term_of o the o (parse thy)) "fixedValues [r=Arbfix]";
   1.617 -  val (d,argl) = strip_comb t;
   1.618 -  is_dsc d;                      (*see split_dts*)
   1.619 -  dest_list (d,argl);
   1.620 -  val (_ $ v) = t;
   1.621 -  is_list v;
   1.622 -  pbl_ids ctxt d v;
   1.623 -[Const ("List.list.Cons","[bool, bool List.list] => bool List.list") $
   1.624 -       (Const # $ Free # $ Const (#,#)) $ Const ("List.list.Nil","bool List..
   1.625 -
   1.626 -  val (dsc,vl) = (split_dts o term_of o the o (parse thy)) "solveFor x";
   1.627 -val dsc = Const ("Descript.solveFor","RealDef.real => Tools.una") : term
   1.628 -val vl = Free ("x","RealDef.real") : term 
   1.629 -
   1.630 -  val (dsc,id) = (split_did o term_of o the o (parse thy)) "solveFor v_";
   1.631 -  pbl_ids ctxt dsc vl;
   1.632 -val it = [Free ("x","RealDef.real")] : term list
   1.633 -   
   1.634 -  val (dsc,vl) = (split_dts o term_of o the o(parse thy))
   1.635 -		       "errorBound (eps=#0)";
   1.636 -  val (dsc,id) = (split_did o term_of o the o(parse thy)) "errorBound err_";
   1.637 -  pbl_ids ctxt dsc vl;
   1.638 -val it = [Free ("#0","RealDef.real"),Free ("eps","RealDef.real")] : term list     *)
   1.639 -
   1.640 -(*. given an already input itm, ((14.9.01: no difference to pbl_ids jet!!))
   1.641 -    make the value in a problem-env according to description-type .*)
   1.642 -(*28.8.01: .nam and .una impl. properly, others copied .. TODO*)
   1.643 -fun pbl_ids' (Const(_,Type("fun",[_,Type("Tools.nam",_)]))) vs =
   1.644 -    (case vs of 
   1.645 -	 [] => raise error ("pbl_ids' Tools.nam called with []")
   1.646 -       | [t] => (case t of  (*eg. eps=#0*)
   1.647 -		     (Const ("op =",_) $ l $ r) => [r,l]
   1.648 -		   | _ => raise error ("pbl_ids' Tools.nam: no equality "
   1.649 -				       ^(Syntax.string_of_term (thy2ctxt' "Isac")t)))
   1.650 -       | vs' => vs (*14.9.01: ???TODO *))
   1.651 -  | pbl_ids' (Const(_,Type("fun",[_,Type("Tools.una",_)]))) vs = vs
   1.652 -  | pbl_ids' (Const(_,Type("fun",[_,Type("Tools.unl",_)]))) vs = vs
   1.653 -  | pbl_ids' (Const(_,Type("fun",[_,Type("Tools.str",_)]))) vs = vs
   1.654 -  | pbl_ids' (Const(_,Type("fun",[_,Type("Tools.toreal",_)]))) vs = vs 
   1.655 -  | pbl_ids' (Const(_,Type("fun",[_,Type("Tools.toreall",_)])))vs = vs 
   1.656 -  | pbl_ids' (Const(_,Type("fun",[_,Type("Tools.unknown",_)])))vs = vs 
   1.657 -  | pbl_ids'  _ vs = 
   1.658 -    raise error ("pbl_ids': not implemented for "
   1.659 -		 ^(terms2str vs));
   1.660 -(*9.5.03 penv postponed: pbl_ids'*)
   1.661 -fun pbl_ids' thy d vs = [comp_ts (d, vs)];
   1.662 -
   1.663 -
   1.664 -(*14.9.01: not used after putting values for penv into itm_
   1.665 -  WN.5.5.03: used in upd .. upd_envv*)
   1.666 -fun upd_penv ctxt penv dsc (id, vl) =
   1.667 -(writeln"### upd_penv used !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!";
   1.668 - writeln"### upd_penv used !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!";
   1.669 - writeln"### upd_penv used !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!";
   1.670 -  overwrite (penv, (id, pbl_ids ctxt dsc vl))
   1.671 -);
   1.672 -(* 
   1.673 -  val penv = [];
   1.674 -  val (dsc,vl) = (split_did o term_of o the o (parse thy)) "solveFor x";
   1.675 -  val (dsc,id) = (split_did o term_of o the o (parse thy)) "solveFor v_";
   1.676 -  val penv = upd_penv thy penv dsc (id, vl);
   1.677 -[(Free ("v_","RealDef.real"),
   1.678 -  [Const (#,#) $ Free (#,#) $ Free ("#0","RealDef.real")])]
   1.679 -: (term * term list) list                                                     
   1.680 -
   1.681 -  val (dsc,vl) = (split_did o term_of o the o(parse thy))"errorBound (eps=#0)";
   1.682 -  val (dsc,id) = (split_did o term_of o the o(parse thy))"errorBound err_";
   1.683 -  upd_penv thy penv dsc (id, vl);
   1.684 -[(Free ("v_","RealDef.real"),
   1.685 -  [Const (#,#) $ Free (#,#) $ Free ("#0","RealDef.real")]),
   1.686 - (Free ("err_","bool"),
   1.687 -  [Free ("#0","RealDef.real"),Free ("eps","RealDef.real")])]
   1.688 -: (term * term list) list    ^.........!!!!
   1.689 -*)
   1.690 -
   1.691 -(*WN.9.5.03: not reconsidered; looks strange !!!*)
   1.692 -fun upd thy envv dsc (id, vl) i =
   1.693 -    let val penv = case assoc (envv, i) of
   1.694 -		       SOME e => e
   1.695 -		     | NONE => [];
   1.696 -        val penv' = upd_penv thy penv dsc (id, vl);
   1.697 -    in (i, penv') end;
   1.698 -(*
   1.699 -  val i = 2;
   1.700 -  val envv = [(1,[]:penv),(2,[]:penv),(3,[]:penv)]:envv;
   1.701 -  val (dsc,vl) = (split_did o term_of o the o(parse thy))"boundVariable b";
   1.702 -  val (dsc,id) = (split_did o term_of o the o(parse thy))"boundVariable v_";
   1.703 -  upd thy envv dsc (id, vl) i;
   1.704 -val it = (2,[(Free ("v_","RealDef.real"),[Free ("b","RealDef.real")])])
   1.705 -  : int * (term * term list) list*)
   1.706 -
   1.707 -
   1.708 -(*14.9.01: not used after putting pre-penv into itm_*)
   1.709 -fun upd_envv thy (envv:envv) (vats:vats) dsc id vl  =
   1.710 -    let val vats = if length vats = 0 
   1.711 -		   then (*unknown id to _all_ variants*)
   1.712 -		       if length envv = 0 then [1]
   1.713 -		       else (intsto o length) envv 
   1.714 -		   else vats
   1.715 -	fun isin vats (i,_) = member op = vats i;
   1.716 -	val envs_notin_vat = filter_out (isin vats) envv;
   1.717 -    in ((map (upd thy envv dsc (id, vl)) vats) @ envs_notin_vat):envv end;
   1.718 -(*
   1.719 -  val envv = [(1,[]:penv),(2,[]:penv),(3,[]:penv)]:envv;
   1.720 - 
   1.721 -  val vats = [2] 
   1.722 -  val (dsc,vl) = (split_did o term_of o the o(parse thy))"boundVariable b";
   1.723 -  val (dsc,id) = (split_did o term_of o the o(parse thy))"boundVariable v_";
   1.724 -  val envv = upd_envv thy envv vats dsc id vl;
   1.725 -val envv = [(2,[(Free ("v_","RealDef.real"),[Free ("b","RealDef.real")])])]
   1.726 -  : (int * (term * term list) list) list
   1.727 -
   1.728 -  val vats = [1,2,3];
   1.729 -  val (dsc,vl) = (split_did o term_of o the o(parse thy))"maximum A";
   1.730 -  val (dsc,id) = (split_did o term_of o the o(parse thy))"maximum m_";
   1.731 -  upd_envv thy envv vats dsc id vl;
   1.732 -[(1,[(Free ("m_","bool"),[Free ("A","bool")])]),
   1.733 - (2,
   1.734 -  [(Free ("v_","RealDef.real"),[Free ("b","RealDef.real")]),
   1.735 -   (Free ("m_","bool"),[Free ("A","bool")])]),
   1.736 - (3,[(Free ("m_","bool"),[Free ("A","bool")])])]
   1.737 -: (int * (term * term list) list) list
   1.738 -
   1.739 -
   1.740 -  val env = []:envv;
   1.741 -  val (d,ts) = (split_dts o term_of o the o (parse thy))
   1.742 -		   "fixedValues [r=Arbfix]";
   1.743 -  val (_,id) = (split_did o term_of o the o (parse thy))"fixedValues fix_";
   1.744 -  val vats = [1,2,3];
   1.745 -  val env = upd_envv thy env vats d id (mkval ts);
   1.746 -*)
   1.747 -
   1.748 -(*. update envv by folding from a list of arguments .*)
   1.749 -fun upds_envv thy envv [] = envv
   1.750 -  | upds_envv thy envv ((vs, dsc, id, vl)::ps) = 
   1.751 -    upds_envv thy (upd_envv thy envv vs dsc id vl) ps;
   1.752 -(* eval test-maximum.sml until Specify_Method ...
   1.753 -  val PblObj{probl=(_,pbl),origin=(_,(_,_,mI),_),...} = get_obj I pt [];
   1.754 -  val met = (#ppc o get_met) mI;
   1.755 -
   1.756 -  val envv = [];
   1.757 -  val eargs = flat eargs;
   1.758 -  val (vs, dsc, id, vl) = hd eargs;
   1.759 -  val envv = upds_envv thy envv [(vs, dsc, id, vl)];
   1.760 -
   1.761 -  val (vs, dsc, id, vl) = hd (tl eargs);
   1.762 -  val envv = upds_envv thy envv [(vs, dsc, id, vl)];
   1.763 -
   1.764 -  val (vs, dsc, id, vl) = hd (tl (tl eargs));
   1.765 -  val envv = upds_envv thy envv [(vs, dsc, id, vl)];
   1.766 -
   1.767 -  val (vs, dsc, id, vl) = hd (tl (tl (tl eargs)));
   1.768 -  val envv = upds_envv thy envv [(vs, dsc, id, vl)];
   1.769 -[(1,
   1.770 -  [(Free ("fix_","bool List.list"),[Const (#,#),Free (#,#)]),
   1.771 -   (Free ("m_","bool"),[Free (#,#)]),
   1.772 -   (Free ("vs_","bool List.list"),[# $ # $ Const #]),
   1.773 -   (Free ("rs_","bool List.list"),[# $ # $ (# $ #)])]),
   1.774 - (2,
   1.775 -  [(Free ("fix_","bool List.list"),[Const (#,#),Free (#,#)]),
   1.776 -   (Free ("m_","bool"),[Free (#,#)]),
   1.777 -   (Free ("vs_","bool List.list"),[# $ # $ Const #]),
   1.778 -   (Free ("rs_","bool List.list"),[# $ # $ (# $ #)])]),
   1.779 - (3,
   1.780 -  [(Free ("fix_","bool List.list"),[Const (#,#),Free (#,#)]),
   1.781 -   (Free ("m_","bool"),[Free (#,#)]),
   1.782 -   (Free ("vs_","bool List.list"),[# $ # $ Const #])])] : envv *)
   1.783 -
   1.784 -(*for _output_ of the items of a Model*)
   1.785 -datatype item = 
   1.786 -    Correct of cterm' (*labels a correct formula (type cterm')*)
   1.787 -  | SyntaxE of string (**)
   1.788 -  | TypeE   of string (**)
   1.789 -  | False   of cterm' (*WN050618 notexistent in itm_: only used in Where*)
   1.790 -  | Incompl of cterm' (**)
   1.791 -  | Superfl of string (**)
   1.792 -  | Missing of cterm';
   1.793 -fun item2str (Correct  s) ="Correct " ^ s
   1.794 -  | item2str (SyntaxE  s) ="SyntaxE " ^ s
   1.795 -  | item2str (TypeE    s) ="TypeE " ^ s
   1.796 -  | item2str (False    s) ="False " ^ s
   1.797 -  | item2str (Incompl  s) ="Incompl " ^ s
   1.798 -  | item2str (Superfl  s) ="Superfl " ^ s
   1.799 -  | item2str (Missing  s) ="Missing " ^ s;
   1.800 -(*make string for error-msgs*)
   1.801 -fun itm_2str_ ctxt (Cor ((d,ts), penv)) = 
   1.802 -    "Cor " ^ Syntax.string_of_term ctxt (comp_dts ctxt (d,ts)) ^ " ,"
   1.803 -    ^ pen2str ctxt penv
   1.804 -  | itm_2str_ ctxt (Syn c)      = "Syn " ^ c
   1.805 -  | itm_2str_ ctxt (Typ c)      = "Typ " ^ c
   1.806 -  | itm_2str_ ctxt (Inc ((d,ts), penv)) = 
   1.807 -    "Inc " ^ Syntax.string_of_term ctxt (comp_dts ctxt (d,ts)) ^ " ,"
   1.808 -    ^ pen2str ctxt penv
   1.809 -  | itm_2str_ ctxt (Sup (d,ts)) = 
   1.810 -    "Sup " ^ Syntax.string_of_term ctxt (comp_dts ctxt (d,ts))
   1.811 -  | itm_2str_ ctxt (Mis (d,pid))= 
   1.812 -    "Mis "^ Syntax.string_of_term ctxt d ^
   1.813 -    " "^ Syntax.string_of_term ctxt pid
   1.814 -  | itm_2str_ ctxt (Par s) = "Trm "^s;
   1.815 -fun itm_2str t = itm_2str_ (thy2ctxt' "Isac") t;
   1.816 -fun itm2str_ ctxt ((i,is,b,s,itm_):itm) = 
   1.817 -    "("^(string_of_int i)^" ,"^(ints2str' is)^" ,"^(bool2str b)^" ,"^
   1.818 -    s^" ,"^(itm_2str_ ctxt itm_)^")";
   1.819 -fun itms2str_ ctxt itms = strs2str' (map (linefeed o (itm2str_ ctxt)) itms);
   1.820 -fun w_itms2str_ ctxt itms = writeln (itms2str_ ctxt itms);
   1.821 -
   1.822 -fun init_item str = SyntaxE str;
   1.823 -
   1.824 -
   1.825 -
   1.826 -
   1.827 -type 'a ppc = 
   1.828 -    {Given : 'a list,
   1.829 -     Where: 'a list,
   1.830 -     Find  : 'a list,
   1.831 -     With : 'a list,
   1.832 -     Relate: 'a list};
   1.833 -fun ppc2str {Given=Given,Where=Where,Find=Find,With=With,Relate=Relate}=
   1.834 -    ("{Given =" ^ (strs2str Given ) ^
   1.835 -     ",Where=" ^ (strs2str Where) ^
   1.836 -     ",Find  =" ^ (strs2str Find  ) ^
   1.837 -     ",With =" ^ (strs2str With ) ^
   1.838 -     ",Relate=" ^ (strs2str Relate) ^ "}");
   1.839 -
   1.840 -
   1.841 -
   1.842 -
   1.843 -fun item_ppc ({Given = gi,Where= wh,
   1.844 -		 Find = fi,With = wi,Relate= re}: string ppc) =
   1.845 -  {Given = map init_item gi,Where= map init_item wh,
   1.846 -   Find = map init_item fi,With = map init_item wi,
   1.847 -   Relate= map init_item re}:item ppc;
   1.848 -fun itemppc2str ({Given=Given,Where=Where,
   1.849 -		 Find=Find,With=With,Relate=Relate}:item ppc)=
   1.850 -    ("{Given =" ^ ((strs2str' o (map item2str))	 Given ) ^
   1.851 -     ",Where=" ^ ((strs2str' o (map item2str))	 Where) ^
   1.852 -     ",Find  =" ^ ((strs2str' o (map item2str))	 Find  ) ^
   1.853 -     ",With =" ^ ((strs2str' o (map item2str))	 With ) ^
   1.854 -     ",Relate=" ^ ((strs2str' o (map item2str))	 Relate) ^ "}");
   1.855 -
   1.856 -fun de_item (Correct x) = x
   1.857 -  | de_item (SyntaxE x) = x
   1.858 -  | de_item (TypeE   x) = x
   1.859 -  | de_item (False   x) = x
   1.860 -  | de_item (Incompl x) = x
   1.861 -  | de_item (Superfl x) = x
   1.862 -  | de_item (Missing x) = x;
   1.863 -val empty_ppc ={Given = [],
   1.864 -		Where= [],
   1.865 -		Find  = [], 
   1.866 -		With = [],
   1.867 -		Relate= []}:item ppc;
   1.868 -val empty_ppc_ct' ={Given = [],
   1.869 -		Where = [],
   1.870 -		Find  = [], 
   1.871 -		With  = [],
   1.872 -		Relate= []}:cterm' ppc;
   1.873 -
   1.874 -
   1.875 -datatype match = 
   1.876 -  Matches of pblID * item ppc
   1.877 -| NoMatch of pblID * item ppc;
   1.878 -fun match2str (Matches (pI, ppc)) = 
   1.879 -    "Matches ("^(strs2str pI)^", "^(itemppc2str ppc)^")"
   1.880 -  | match2str(NoMatch (pI, ppc)) = 
   1.881 -    "NoMatch ("^(strs2str pI)^", "^(itemppc2str ppc)^")";
   1.882 -fun matchs2str ms = (strs2str o (map match2str)) ms;
   1.883 -fun pblID_of_match (Matches (pI,_)) = pI
   1.884 -  | pblID_of_match (NoMatch (pI,_)) = pI;
   1.885 -
   1.886 -(*10.03 for Refine_Problem*)
   1.887 -datatype match_ = 
   1.888 -  Match_ of pblID * ((itm list) * ((bool * term) list))
   1.889 -| NoMatch_;
   1.890 -
   1.891 -(*. the refined pbt is the last_element Matches in the list .*)
   1.892 -fun is_matches (Matches _) = true
   1.893 -  | is_matches _ = false;
   1.894 -fun matches_pblID (Matches (pI,_)) = pI;
   1.895 -fun refined ms = ((matches_pblID o the o (find_first is_matches) o rev) ms)
   1.896 -    handle _ => []:pblID;
   1.897 -fun refined_IDitms ms = ((find_first is_matches) o rev) ms;
   1.898 -
   1.899 -(*. the refined pbt is the last_element Matches in the list,
   1.900 -    for Refine_Problem, tryrefine .*)
   1.901 -fun is_matches_ (Match_ _) = true
   1.902 -  | is_matches_ _ = false;
   1.903 -fun refined_ ms = ((find_first is_matches_) o rev) ms;
   1.904 -
   1.905 -
   1.906 -fun ts_in (Cor ((_,ts),_)) = ts
   1.907 -  | ts_in (Syn  (c)) = []
   1.908 -  | ts_in (Typ  (c)) = []
   1.909 -  | ts_in (Inc ((_,ts),_)) = ts
   1.910 -  | ts_in (Sup (_,ts)) = ts
   1.911 -  | ts_in (Mis _) = [];
   1.912 -(*WN050629 unused*)
   1.913 -fun all_ts_in itm_s = (flat o (map ts_in)) itm_s;
   1.914 -val unique = (term_of o the o (parse (theory "Real"))) "UnIqE_tErM";
   1.915 -fun d_in (Cor ((d,_),_)) = d
   1.916 -  | d_in (Syn  (c)) = (writeln("*** d_in: Syn ("^c^")"); unique)
   1.917 -  | d_in (Typ  (c)) = (writeln("*** d_in: Typ ("^c^")"); unique)
   1.918 -  | d_in (Inc ((d,_),_)) = d
   1.919 -  | d_in (Sup (d,_)) = d
   1.920 -  | d_in (Mis (d,_)) = d;
   1.921 -
   1.922 -fun dts2str (d,ts) = pair2str (term2str d, terms2str ts);
   1.923 -fun penvval_in (Cor ((d,_),(_,ts))) = [comp_ts (d,ts)]
   1.924 -  | penvval_in (Syn  (c)) = (writeln("*** penvval_in: Syn ("^c^")"); [])
   1.925 -  | penvval_in (Typ  (c)) = (writeln("*** penvval_in: Typ ("^c^")"); [])
   1.926 -  | penvval_in (Inc (_,(_,ts))) = ts
   1.927 -  | penvval_in (Sup dts) = (writeln("*** penvval_in: Sup "^(dts2str dts)); [])
   1.928 -  | penvval_in (Mis (d,t)) = (writeln("*** penvval_in: Mis "^
   1.929 -				      (pair2str(term2str d, term2str t))); []);
   1.930 -
   1.931 -
   1.932 -(*. check a predicate labelled with indication of incomplete substitution;
   1.933 -rls ->    (*for eval_true*)
   1.934 -bool * 	  (*have _all_ variables(Free) from the model-pattern 
   1.935 -            been substituted by a value from the pattern's environment ?*)
   1.936 -term (*the precondition*)
   1.937 -->
   1.938 -bool * 	  (*has the precondition evaluated to true*)
   1.939 -term (*the precondition (for map)*)
   1.940 -.*)
   1.941 -fun evalprecond prls (false, pre) = 
   1.942 -  (*NOT ALL Free's have been substituted, eg. because of incomplete model*)
   1.943 -    (false, pre)
   1.944 -  | evalprecond prls (true, pre) =
   1.945 -(* val (prls, pre) = (prls, hd pres');
   1.946 -   val (prls, pre) = (prls, hd (tl pres'));
   1.947 -   *)
   1.948 -    if eval_true (assoc_thy "Isac.thy") (*for Pattern.match   *)
   1.949 -		 [pre] prls             (*pre parsed, prls.thy*)
   1.950 -    then (true , pre)
   1.951 -    else (false , pre);
   1.952 -
   1.953 -fun pre2str (b, t) = pair2str(bool2str b, term2str t);
   1.954 -fun pres2str pres = strs2str' (map (linefeed o pre2str) pres);
   1.955 -
   1.956 -(*. check preconditions, return true if all true .*)
   1.957 -fun check_preconds' _ [] _ _ = []  (*empty preconditions are true*)
   1.958 -  | check_preconds' prls pres pbl _(*FIXME.WN0308 mvat re-introduce*) =
   1.959 -(* val (prls, pres, pbl, _) = (prls, where_, probl, 0);
   1.960 -   val (prls, pres, pbl, _) = (prls, pre, itms, mvat);
   1.961 -   *)
   1.962 -    let val env = mk_env pbl;
   1.963 -        val pres' = map (subst_atomic_all env) pres;
   1.964 -    in map (evalprecond prls) pres' end;
   1.965 -
   1.966 -fun check_preconds thy prls pres pbl = 
   1.967 -    check_preconds' prls pres pbl (max_vt pbl);
   1.968 -
   1.969 -(*----------------------------------------------------------*)
   1.970 -end
   1.971 -open SpecifyTools;
   1.972 -(*----------------------------------------------------------*)