(* tests on calchead.sml

   author: Walther Neuper

   051013,

   (c) due to copyright terms

12345678901234567890123456789012345678901234567890123456789012345678901234567890

        10        20        30        40        50        60        70        80

*)

"--------------------------------------------------------";

"table of contents --------------------------------------";

"--------------------------------------------------------";

"--------- get_interval after replace} other 2 ----------";

"--------- maximum example with 'specify' ---------------";

"--------- maximum example with 'specify', fmz <> [] ----";

"--------- maximum example with 'specify', fmz = [] -----";

"--------- match_ags, is_cp, cpy_nam +with EqSystem (!)--";

"--------- regression test fun is_copy_named ------------";

"--------- regr.test fun cpy_nam ------------------------";

"--------------------------------------------------------";

"--------------------------------------------------------";

"--------------------------------------------------------";

(*WN100914======================================================================

"--------- get_interval after replace} other 2 ----------";

"--------- get_interval after replace} other 2 ----------";

"--------- get_interval after replace} other 2 ----------";

states := [];

 CalcTree

 [(["equality (x+1=2)", "solveFor x","solutions L"], 

   ("Test.thy", 

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

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

 Iterator 1;

 moveActiveRoot 1;

 autoCalculate 1 CompleteCalc;

 moveActiveFormula 1 ([2],Res); (*there is "-1 + x = 0"*)

 replaceFormula 1 "x = 1"; 

 (*... returns calcChangedEvent with ...*)

 val (unc, del, gen) = (([1],Res), ([4],Res), ([3,2],Res));

 val ((pt,_),_) = get_calc 1;

print_depth 99;map fst (get_interval ([],Pbl) ([],Res) 9999 pt);print_depth 3;

if map fst (get_interval ([],Pbl) ([],Res) 9999 pt) = 

    [([], Pbl), ([1], Frm),([1], Res), ([2], Res), ([3], Pbl), ([3, 1], Frm), 

     ([3, 1], Res), ([3, 2, 1], Frm), ([3, 2, 1], Res), ([3, 2, 2], Res),

      ([3, 2], Res)] then () else

error "calchead.sml: diff.behav. get_interval after replace} other 2 a";

print_depth 99;map fst (get_interval ([3, 2, 1], Res) ([],Res) 9999 pt);

print_depth 3;

if map fst (get_interval ([3, 2, 1], Res) ([],Res) 9999 pt) = 

    [([3, 2, 1], Res), ([3, 2, 2], Res), ([3, 2], Res)] then () else

error "modspec.sml: diff.behav. get_interval after replace} other 2 b";

"--------- maximum example with 'specify' ------------------------";

"--------- maximum example with 'specify' ------------------------";

"--------- maximum example with 'specify' ------------------------";

(*"              Specify_Problem (match_itms_oris)       ";*)

val fmz =

    ["fixedValues [r=Arbfix]","maximum A",

     "valuesFor [a,b]",

     "relations [A=a*b, (a/2)^^^2 + (b/2)^^^2 = r^^^2]",

     "relations [A=a*b, (a/2)^^^2 + (b/2)^^^2 = r^^^2]",

     "relations [A=a*b, a/2=r*sin alpha, b/2=r*cos alpha]",

     "boundVariable a","boundVariable b","boundVariable alpha",

     "interval {x::real. 0 <= x & x <= 2*r}",

     "interval {x::real. 0 <= x & x <= 2*r}",

     "interval {x::real. 0 <= x & x <= pi}",

     "errorBound (eps=(0::real))"];

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

  ("DiffApp.thy",["maximum_of","function"],

   ["DiffApp","max_by_calculus"]);

val c = []:cid;

(*val nxt = Init_Proof' (fmz,(dI',pI',mI'));

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt e_pos' [] EmptyPtree;

*)

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

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "fixedValues [(r::real) = Arbfix]" : tac*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(**)

(*---6.5.03

val nxt = tac2tac_ pt p (Add_Find "valuesFor [(a::real)]"); 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*uncaught exception TYPE 6.5.03*)

if ppc<>(Problem [],  

         {Find=[Incompl "maximum",Incompl "valuesFor [a]"],

	  Given=[Correct "fixedValues [r = Arbfix]"],

	  Relate=[Incompl "relations []"], Where=[],With=[]})

then error "test-maximum.sml: model stepwise - different behaviour" 

else (); (*different with show_types !!!*)

6.5.03---*)

(*-----appl_add should not create Error', but accept as Sup,Syn

val nxt = tac2tac_ pt p (Add_Given "boundVariable a"); 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(**)

val nxt = tac2tac_ pt p (Add_Given "boundVariable a+"); 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(**)---*)

val m = Specify_Problem ["maximum_of","function"];

val nxt = tac2tac_ pt p m; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(**)

if ppc<>(Problem ["maximum_of","function"],  

         {Find=[Incompl "maximum",Incompl "valuesFor"],

	  Given=[Correct "fixedValues [r = Arbfix]"],

	  Relate=[Incompl "relations []"], Where=[],With=[]})

then error "diffappl.sml: Specify_Problem different behaviour" 

else ();

(* WN.3.9.03 (#391) Model_Specify did init_pbl newly 

if ppc<>(Problem ["maximum_of","function"],

   {Find=[Missing "maximum m_",Missing "valuesFor vs_"],

    Given=[Correct "fixedValues [r = Arbfix]"],

    Relate=[Missing "relations rs_"],Where=[],With=[]})

then error "diffappl.sml: Specify_Problem different behaviour" 

else ();*)

val nxt = tac2tac_ pt p(Specify_Method ["DiffApp","max_by_calculus"]);

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(**)

if ppc<>(Method ["DiffApp","max_by_calculus"],

	 {Find=[Incompl "maximum",Incompl "valuesFor"],

	  Given=[Correct "fixedValues [r = Arbfix]",Missing "boundVariable v_v",

		 Missing "interval itv_",Missing "errorBound err_"],

	  Relate=[Incompl "relations []"],Where=[],With=[]})

then error "diffappl.sml: Specify_Method different behaviour" 

else ();

(* WN.3.9.03 (#391) Model_Specify did init_pbl newly 

if ppc<>(Method ["DiffApp","max_by_calculus"],

   {Find=[Missing "maximum m_",Missing "valuesFor vs_"],

    Given=[Correct "fixedValues [r = Arbfix]",Missing "boundVariable v_v",

           Missing "interval itv_",Missing "errorBound err_"],

    Relate=[Missing "relations rs_"],Where=[],With=[]})

then error "diffappl.sml: Specify_Method different behaviour" 

else ();*)

"--------- maximum example with 'specify', fmz <> [] -------------";

"--------- maximum example with 'specify', fmz <> [] -------------";

"--------- maximum example with 'specify', fmz <> [] -------------";

val fmz =

    ["fixedValues [r=Arbfix]","maximum A",

     "valuesFor [a,b]",

     "relations [A=a*b, (a/2)^^^2 + (b/2)^^^2 = r^^^2]",

     "relations [A=a*b, (a/2)^^^2 + (b/2)^^^2 = r^^^2]",

     "relations [A=a*b, a/2=r*sin alpha, b/2=r*cos alpha]",

     "boundVariable a","boundVariable b","boundVariable alpha",

     "interval {x::real. 0 <= x & x <= 2*r}",

     "interval {x::real. 0 <= x & x <= 2*r}",

     "interval {x::real. 0 <= x & x <= pi}",

     "errorBound (eps=(0::real))"];

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

  ("DiffApp.thy",["maximum_of","function"],

   ["DiffApp","max_by_calculus"]);

val c = []:cid;

(*val nxt = Init_Proof' (fmz,(dI',pI',mI'));*)

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

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt e_pos' [] pt;

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "fixedValues [(r::real) = Arbfix]" : tac*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Find "maximum (A::bool)" : tac*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Find "valuesFor [(a::real)]" : tac*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Find "valuesFor [(b::real)]" : tac*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Relation "relations [A = a * b]" *)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*Add_Relation "relations\n [((a::real) // (#2::real)) ..."*)

(*---------------------------- FIXXXXME.meNEW !!! partial Add-Relation !!!

  nxt_specif <> specify ?!

if nxt<>(Add_Relation 

 "relations [(a / 2) ^^^ 2 + (b / 2) ^^^ 2 = r ^^^ 2]")

then error "test specify, fmz <> []: nxt <> Add_Relation (a/2)^2.." else (); (*different with show_types !!!*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

------------------------------ FIXXXXME.meNEW !!! ---*)

(*val nxt = Specify_Theory "DiffApp.thy" : tac*)

val itms = get_obj g_pbl pt (fst p);writeln(itms2str_ ctxt itms);

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Specify_Problem ["maximum_of","function"]*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Specify_Method ("DiffApp.thy","max_by_calculus")*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "boundVariable a" : tac*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "interval {x. #0 <= x & x <= #2 * r}" : *)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "errorBound (eps = #0)" : tac*)

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Apply_Method ("DiffApp.thy","max_by_calculus") *)

if nxt<>(Apply_Method ["DiffApp","max_by_calculus"])

then error "test specify, fmz <> []: nxt <> Apply_Method max_by_calculus" else ();

"--------- maximum example with 'specify', fmz = [] --------------";

"--------- maximum example with 'specify', fmz = [] --------------";

"--------- maximum example with 'specify', fmz = [] --------------";

val fmz = [];

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

val c = []:cid;

val nxt = Init_Proof' (fmz,(dI',pI',mI'));(*!!!!!!!!*)

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

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt e_pos' [] 

  EmptyPtree;

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Specify_Theory "e_domID" : tac*)

val nxt = Specify_Theory "DiffApp.thy";

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Specify_Problem ["e_pblID"] : tac*)

val nxt = Specify_Problem ["maximum_of","function"];

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "fixedValues" : tac*)

val nxt = Add_Given "fixedValues [r=Arbfix]";

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Find "maximum" : tac*)

val nxt = Add_Find "maximum A";

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Find "valuesFor" : tac*)

val nxt = Add_Find "valuesFor [a]";

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Relation "relations" --- 

  --- [b=Arbfix] KANN NICHT VERLANGT WERDEN !!!!*)

(*30.8.01 ... funktioniert nicht mehr nach Einfuehrung env ....

if nxt<>(Add_Relation "relations []")

then error "test specify, fmz <> []: nxt <> Add_Relation.." 

else (); (*different with show_types !!!*)

*)

val nxt = Add_Relation "relations [(A=a+b)]";

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Specify_Method ("e_domID","e_metID") : tac*)

val nxt = Specify_Method ["DiffApp","max_by_calculus"];

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "boundVariable" : tac*)

val nxt = Add_Given "boundVariable alpha";

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "interval" : tac*)

val nxt = Add_Given "interval {x. 2 <= x & x <= 3}";

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Add_Given "errorBound" : tac*)

val nxt = Add_Given "errorBound (eps=999)";

val nxt = tac2tac_ pt p nxt; 

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt;

(*val nxt = Apply_Method ("DiffApp","max_by_calculus") *)

(*30.8.01 ... funktioniert nicht mehr nach Einfuehrung env ....

if nxt<>(Apply_Method ("DiffApp.thy","max_by_calculus"))

then error "test specify, fmz <> []: nxt <> Add_Relation.." 

else ();

*)

(* 2.4.00 nach Transfer specify -> hard_gen

val nxt = Apply_Method ("DiffApp.thy","max_by_calculus");

val(p,_,Form'(PpcKF(_,_,_,_,ppc)),nxt,_,pt) = specify nxt p [] pt; *)

(*val nxt = Empty_Tac : tac*)

====================================================================WN100914*)

"--------- match_ags, is_cp, cpy_nam +with EqSystem (!)--";

"--------- match_ags, is_cp, cpy_nam +with EqSystem (!)--";

"--------- match_ags, is_cp, cpy_nam +with EqSystem (!)--";

val Const ("Script.SubProblem",_) $

	  (Const ("Pair",_) $

		 Free (dI',_) $ 

		 (Const ("Pair",_) $ pI' $ mI')) $ ags' =

    (*...copied from stac2tac_*)

    str2term (

	"SubProblem (EqSystem', [linear, system], [no_met])         " ^

        "     [BOOL_LIST [c_2 = 0, L * c + c_2 = q_0 * L ^^^ 2 / 2]," ^

        "      REAL_LIST [c, c_2]]");

val ags = isalist2list ags';

val pI = ["linear","system"];

val pats = (#ppc o get_pbt) pI;

"-a1-----------------------------------------------------";

(*match_ags = fn : theory -> pat list -> term list -> ori list*)

val xxx = match_ags (theory "EqSystem") pats ags;

"-a2-----------------------------------------------------";

case match_ags (theory "Isac") pats ags of 

    [(1, [1], "#Given", Const ("Descript.equalities", _), _),

     (2, [1], "#Given", Const ("EqSystem.solveForVars", _),

      [ _ $ Free ("c", _) $ _, _ $ Free ("c_2", _) $ _]),

     (3, [1], "#Find", Const ("EqSystem.solution", _), [Free ("ss'''", _)])] 

    =>()

  | _ => error "calchead.sml match_ags 2 args Nok ----------------";

"-b------------------------------------------------------";

val Const ("Script.SubProblem",_) $

	  (Const ("Pair",_) $

		 Free (dI',_) $ 

		 (Const ("Pair",_) $ pI' $ mI')) $ ags' =

    (*...copied from stac2tac_*)

    str2term (

	"SubProblem (EqSystem', [linear, system], [no_met])         " ^

        "     [BOOL_LIST [c_2 = 0, L * c + c_2 = q_0 * L ^^^ 2 / 2]," ^

        "      REAL_LIST [c, c_2], BOOL_LIST ss''']");

val ags = isalist2list ags';

val pI = ["linear","system"];

val pats = (#ppc o get_pbt) pI;

"-b1-----------------------------------------------------";

val xxx = match_ags (theory "Isac") pats ags;

"-b2-----------------------------------------------------";

case match_ags (theory "EqSystem") pats ags of 

    [(1, [1], "#Given", Const ("Descript.equalities", _), _),

     (2, [1], "#Given", Const ("EqSystem.solveForVars", _),

         [_ $ Free ("c", _) $ _,

          _ $ Free ("c_2", _) $ _]),

     (3, [1], "#Find", Const ("EqSystem.solution", _), [Free ("ss'''", _)])]

    (*         type of Find:            [Free ("ss'''", "bool List.list")]*)

    =>()

  | _ => error "calchead.sml match_ags copy-named dropped --------";

"-c---ERROR case: stac is missing #Given equalities e_s--";

val stac as Const ("Script.SubProblem",_) $

	 (Const ("Pair",_) $

		Free (dI',_) $ 

		(Const ("Pair",_) $ pI' $ mI')) $ ags' =

    (*...copied from stac2tac_*)

    str2term (

	"SubProblem (EqSystem', [linear, system], [no_met]) " ^

        "     [REAL_LIST [c, c_2]]");

val ags = isalist2list ags'; 

val pI = ["linear","system"];

val pats = (#ppc o get_pbt) pI;

(*===inhibit exn provided by this testcase==========================

val xxx = match_ags (theory "EqSystem") pats ags;

===================================================================*)

"-c1-----------------------------------------------------";

"--------------------------step through code match_ags---";

val (thy, pbt:pat list, ags) = (theory "EqSystem", pats, ags);

fun flattup (i,(var,bool,str,itm_)) = (i,var,bool,str,itm_);

	val pbt' = filter_out is_copy_named pbt; (*=equalities, solveForVars*)

	val cy = filter is_copy_named pbt;       (*=solution*)

(*===inhibit exn provided by this testcase==========================

	val oris' = matc thy pbt' ags [];

===================================================================*)

"-------------------------------step through code matc---";

val (thy, (p as (s,(d,t)))::pbt, a::ags, oris) = (thy, pbt', ags, []);

(is_copy_named_idstr o free2str) t;

"---if False:...";

(*===inhibit exn provided by this testcase==========================

val opt = mtc thy p a;

===================================================================*)

"--------------------------------step through code mtc---";

val (thy, (str, (dsc, _)):pat, ty $ var) = (thy, p, a);

cterm_of;

val ttt = (dsc $ var);

(*===inhibit exn provided by this testcase==========================

cterm_of thy (dsc $ var);

===================================================================*)

"-------------------------------------step through end---";

case ((match_ags (theory "EqSystem") pats ags)

      handle ERROR _ => []) of (*why not TYPE ?WN100920*)

    [] => match_ags_msg pI stac ags

  | _ => error "calchead.sml match_ags 1st arg missing --------";

"-d------------------------------------------------------";

val stac as Const ("Script.SubProblem",_) $

	 (Const ("Pair",_) $

		Free (dI',_) $ 

		(Const ("Pair",_) $ pI' $ mI')) $ ags' =

    (*...copied from stac2tac_*)

    str2term (

	"SubProblem (Test',[univariate,equation,test]," ^

        "             [no_met]) [BOOL (x+1=2), REAL x]");

val AGS = isalist2list ags';

val pI = ["univariate","equation","test"];

val PATS = (#ppc o get_pbt) pI;

"-d1-----------------------------------------------------";

"--------------------------step through code match_ags---";

val (thy, pbt:pat list, ags) = (theory "Test", PATS, AGS);

fun flattup (i,(var,bool,str,itm_)) = (i,var,bool,str,itm_);

	val pbt' = filter_out is_copy_named pbt; 

	val cy = filter is_copy_named pbt;       

	val oris' = matc thy pbt' ags [];

"-------------------------------step through code matc---";

val (thy, (p as (s,(d,t)))::pbt, a::ags, oris) = (thy, pbt', ags, []);

(is_copy_named_idstr o free2str) t;

"---if False:...";

val opt = mtc thy p a;

"--------------------------------step through code mtc---";

val (thy, (str, (dsc, _)):pat, ty $ var) = (thy, p, a);

val ttt = (dsc $ var);

cterm_of thy (dsc $ var);

val ori = ((([1], str, dsc, (*[var]*) split_dts' (dsc, var))): preori);

"-d2-----------------------------------------------------";

pbt = [];  (*false*)

"-------------------------------step through code matc---";

val (thy, (p as (s,(d,t)))::pbt, a::ags, oris) = (thy, pbt, ags, oris @ [ori]);

(is_copy_named_idstr o free2str) t;

"---if False:...";

val opt = mtc thy p a;

"--------------------------------step through code mtc---";

val (thy, (str, (dsc, _)):pat, ty $ var) = (thy, p, a);

val ttt = (dsc $ var);

cterm_of thy (dsc $ var);

val ori = ((([1], str, dsc, (*[var]*) split_dts' (dsc, var))): preori);

"-d3-----------------------------------------------------";

pbt = [];  (*true, base case*)

"-----------------continue step through code match_ags---";

	val oris' = oris @ [ori]; (*result 2 oris, cpy_nam added later*)

"--------------------------------step through cpy_nam----";

val (pbt, oris, p as (field, (dsc, t)):pat) = (pbt', oris', hd cy);

(*t = "v_v'i'" : term             OLD: t = "v_i_"*)

"--------------------------------------------------------";

fun is_copy_named_generating_idstr str =

    if is_copy_named_idstr str

    then case (rev o explode) str of

      (*"_"::"_"::"_"::_ => false*)

	"'"::"'"::"'"::_ => false

      | _ => true

    else false;

fun is_copy_named_generating (_, (_, t)) = 

    (is_copy_named_generating_idstr o free2str) t;

"--------------------------------------------------------";

is_copy_named_generating p (*true*);

           fun sel (_,_,d,ts) = comp_ts (d, ts);

	   val cy' = (implode o (drop_last_n 3) o explode o free2str) t;

               (*"v_v"             OLD: "v_"*)

	   val ext = (last_elem o drop_last o explode o free2str) t;

               (*"i"               OLD: "i"*)

	   val vars' = map (free2str o snd o snd) pbt(*cpy-nam filtered_out*);

               (*["e_e", "v_v"]    OLD: ["e_", "v_"]*)

	   val vals = map sel oris;

               (*[x+1=2, x]        OLD: [x+1=2, x] : term list*)

vars' ~~ vals;

(*[("e_e", [x+1=2), ("v_v", x)]    OLD: [("e_", [x+1=2), ("v_", x)]*)

(assoc (vars'~~vals, cy'));

(*Some (Free ("x", "RealDef.real")) : term option*)

	   val cy_ext = (free2str o the) (assoc (vars'~~vals, cy'))^"_"^ext;

               (*x_i*)

"-----------------continue step through code match_ags---";

	val cy' = map (cpy_nam pbt' oris') cy;

               (*[([1], "#Find", "solutions, [x_i"] (*as terms*) )]*)

"-------------------------------------step through end---";

case match_ags thy PATS AGS of

[(1, [1], "#Given", Const ("Descript.equality", _),

  [Const ("op =", _) $ (Const ("Groups.plus_class.plus", _) $

		Free ("x", _) $ Free ("1", _)) $ Free ("2", _)]),

 (2, [1], "#Given", Const ("Descript.solveFor", _), [Free ("x", _)]),

 (3, [1], "#Find", Const ("Descript.solutions", _), [Free ("x_i", _)])]

    => ()

  | _ => error "calchead.sml match_ags [univariate,equation,test]--";

"--------- regression test fun is_copy_named ------------";

"--------- regression test fun is_copy_named ------------";

"--------- regression test fun is_copy_named ------------";

val trm = (1, (2, @{term "v'i'"}));

if is_copy_named trm then () else error "regr. is_copy_named 1";

val trm = (1, (2, @{term "e_e"}));

if is_copy_named trm then error "regr. is_copy_named 2" else ();

val trm = (1, (2, @{term "L'''"}));

if is_copy_named trm then () else error "regr. is_copy_named 3";

(* out-comment 'structure CalcHead'...

val trm = (1, (2, @{term "v'i'"}));

if is_copy_named_generating trm then () else error "regr. is_copy_named";

val trm = (1, (2, @{term "L'''"}));

if is_copy_named_generating trm then error "regr. is_copy_named" else ();

*)

"--------- regr.test fun cpy_nam ------------------------";

"--------- regr.test fun cpy_nam ------------------------";

"--------- regr.test fun cpy_nam ------------------------";

(*data from above - match_ags, is_cp, cpy_nam +with EqSystem (!)-:*)

(*the model-pattern, is_copy_named are filter_out*)

pbt = [("#Given", (@{term "equality"}, @{term "e_e :: bool"})),

       ("#Given", (@{term "solveFor"}, @{term "v_v :: real"} ))];

(*the model specific for an example*)

oris = [([1], "#Given", @{term "equality"} , [str2term "x+1= 2"]),

	([1], "#Given", @{term "solveFor"} , [@{term "x :: real"} ])];

cy = [("#Find", (@{term "solutions"}, @{term "v_v'i' :: bool list"}))];

(*...all must be true*)

case cpy_nam pbt oris (hd cy) of 

    ([1], "#Find", Const ("Descript.solutions", _), [Free ("x_i", _)]) => ()

  | _ => error "calchead.sml regr.test cpy_nam-1-";

(*new data: cpy_nam without changing the name*)

@{term "equalities"}; type_of @{term "[x_1+1=2,x_2=0]"};

@{term "solveForVars"}; type_of @{term "[x_1,x_2]::real list"};

@{term "solution"}; type_of @{term "ss''' :: bool list"};

(*the model-pattern for ["linear", "system"], is_copy_named are filter_out*)

val pbt = [("#Given", (@{term "equalities"}, @{term "e_s :: bool list"})),

       ("#Given", (@{term "solveForVars v_s"}, @{term "v_s :: bool list"} ))];

(*the model specific for an example*)

val oris = [([1], "#Given", @{term "equalities"} ,[str2term "[x_1+1=2,x_2=0]"]),

    ([1], "#Given", @{term "solveForVars"} , [@{term "[x_1,x_2]::real list"}])];

val cy = [("#Find", (@{term "solution"}, @{term "ss''' :: bool list"}))

        (*could be more than 1*)];

case cpy_nam pbt oris (hd cy) of

    ([1], "#Find", Const ("EqSystem.solution", _), [Free ("ss'''", _)]) => ()

  | _ => error "calchead.sml regr.test cpy_nam-2-";