(* Title:  400-start-meth-subpbl.sml

   Author: Walther Neuper 1105

   (c) copyright due to lincense terms.

*)

"----------- Minisubplb/400-start-meth-subpbl.sml ----------------";

"----------- Minisubplb/400-start-meth-subpbl.sml ----------------";

"----------- Minisubplb/400-start-meth-subpbl.sml ----------------";

val fmz = ["equality (x+1=(2::real))", "solveFor x","solutions L"];

val (dI',pI',mI') =

   ("Test", ["sqroot-test","univariate","equation","test"],

    ["Test","squ-equ-test-subpbl1"]);

val (p,_,f,nxt,_,pt) = CalcTreeTEST [(fmz, (dI',pI',mI'))];

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt; (*nxt = Apply_Method ["Test", "squ-equ-test-subpbl1"]*)

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt; (*nxt = Subp ["LINEAR", "univariate", "equation", "test"]*)

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt;

val (p,_,f,nxt,_,pt) = me nxt p [] pt; (*nxt = Apply_Method ["Test", "solve_linear"]*)

get_ctxt pt p |> is_e_ctxt;       (*false... OK: from specify, PblObj{ctxt,...}*)

val ctxt = get_ctxt pt p;

val SOME t = parseNEW ctxt "Check_elementwise [x = 1] {(v_v::real). Assumptions}";

get_loc pt p |> snd |> is_e_ctxt; (*true ... OK: interpreter not yet started*)

val (pt'',p'') = (pt, p);

"~~~~~ fun me, args:"; val (_,tac) = nxt;

"~~~~~ fun locatetac, args:"; val ptp as (pt, p) = (pt, p);

val (mI,m) = mk_tac'_ tac;

val Appl m = applicable_in p pt m;

member op = specsteps mI; (*false*)

"~~~~~ fun loc_solve_, args:"; val (m, (pt, pos) ) = ((mI, m), ptp);

"~~~~~ fun solve, args:"; val (("Apply_Method", Apply_Method' (mI,_,_,_)), pos as (p,_)) = (m, pos);

val {srls, ...} = get_met mI;

val PblObj {meth=itms, ...} = get_obj I pt p;

val SOME t = parseNEW ctxt "Check_elementwise [x = 1] {(v_v::real). Assumptions}";

val thy' = get_obj g_domID pt p;

val thy = assoc_thy thy';

val (is as ScrState (env,_,_,_,_,_), ctxt, sc) = init_scrstate thy itms mI;

(*dont take ctxt                   ^^^ from   ^^^^^^^^^^^^^*)

(*= the first part vvvvvvvvv works now =======================================*)

val (pt, p) = case locatetac tac (pt'',p'') of

	("ok", (_, _, ptp))  => ptp | _ => error "script.sml locatetac";

val ctxt = get_ctxt pt p;

val SOME t = parseNEW ctxt "Check_elementwise [x = 1] {(v_v::real). Assumptions}";

(*= the first part ^^^^^^^^^^ works now =======================================*)

val (pt'',p'') = (pt, p);

"~~~~~ fun step, args:"; val (ip as (_,p_), (ptp as (pt,p), tacis)) = (p, ((pt, e_pos'), []))

val pIopt = get_pblID (pt,ip);

tacis; (*= []*)

member op = [Pbl,Met] p_ andalso is_none (get_obj g_env pt (fst p)); (*= false*)

"~~~~~ fun nxt_solve_, args:"; val (ptp as (pt, pos as (p, p_))) = (pt, ip);

val thy' = get_obj g_domID pt (par_pblobj pt p);

val (srls, is, sc) = from_pblobj_or_detail' thy' (p,p_) pt;

"~~~~~ fun next_tac, args:"; val (thy, (ptp as (pt,(p,_)):ctree * pos'), (sc as Prog (h $ body)), 

	                               (ScrState (E,l,a,v,s,b), ctxt)) = ((thy',srls), (pt,pos), sc, is);

val ctxt = get_ctxt pt pos;

val SOME t = parseNEW ctxt "Check_elementwise [x = 1] {(v_v::real). Assumptions}";

(*= the first part ^^^^^^^^^^ works now =======================================*)

l = [];

appy thy ptp E [R] body NONE v;

val (p,_,f,nxt,_,pt) = me nxt p'' [] pt''; (*nxt = Rewrite_Set_Inst isolate_bdv*);