1 (* use"../ME/ctree.sml";
6 tracing (pr_ptree pr_short pt);
12 (*structure Ptree (**): PTREE (**) = ###### outcommented ######*)
18 exception PTREE of string
37 val ets2str : ets -> string
41 val tac_2str : tac_ -> string
43 val safe2str : safe -> string
46 val cappend_atomic : ptree -> pos -> loc -> cterm' -> tac
47 -> cterm' -> ostate -> cid -> ptree * posel list * cid
48 val cappend_form : ptree
49 -> pos -> loc -> cterm' -> cid -> ptree * pos * cid
50 val cappend_parent : ptree -> pos -> loc -> cterm' -> tac
51 -> branch -> cid -> ptree * int list * cid
52 val cappend_problem : ptree -> posel list(*FIXME*) -> loc
53 -> cterm' list * spec -> cid -> ptree * int list * cellID list
54 val append_result : ptree -> pos -> cterm' -> ostate -> ptree * pos
57 val g_branch : ppobj -> branch
58 val g_cell : ppobj -> cid
59 val g_args : ppobj -> (int * (term list)) list (*args of scr*)
60 val g_form : ppobj -> cterm'
61 val g_loc : ppobj -> loc
62 val g_met : ppobj -> meth
63 val g_domID : ppobj -> domID
64 val g_metID : ppobj -> metID
65 val g_model : ppobj -> cterm' ppc
66 val g_tac : ppobj -> tac
67 val g_origin : ppobj -> cterm' list * spec
68 val g_ostate : ppobj -> ostate
69 val g_pbl : ppobj -> pblID * item ppc
70 val g_result : ppobj -> cterm'
71 val g_spec : ppobj -> spec
72 (* val get_all : (ppobj -> 'a) -> ptree -> 'a list
73 val get_alls : (ppobj -> 'a) -> ptree list -> 'a list *)
74 val get_obj : (ppobj -> 'a) -> ptree -> pos -> 'a
75 val gpt_cell : ptree -> cid
76 val par_pblobj : ptree -> pos -> pos
77 val pre_pos : pos -> pos
78 val lev_dn : int list -> int list
79 val lev_on : pos -> posel list
80 val lev_pred : pos -> pos
81 val lev_up : pos -> pos
82 (* val pr_cell : pos -> ppobj -> string
83 val pr_pos : int list -> string *)
84 val pr_ptree : (pos -> ppobj -> string) -> ptree -> string
85 val pr_short : pos -> ppobj -> string
86 (* val repl : 'a list -> int -> 'a -> 'a list
87 val repl_app : 'a list -> int -> 'a -> 'a list
88 val repl_branch : branch -> ppobj -> ppobj
89 val repl_domID : domID -> ppobj -> ppobj
90 val repl_form : cterm' -> ppobj -> ppobj
91 val repl_met : item ppc -> ppobj -> ppobj
92 val repl_metID : metID -> ppobj -> ppobj
93 val repl_model : cterm' list -> ppobj -> ppobj
94 val repl_tac : tac -> ppobj -> ppobj
95 val repl_pbl : item ppc -> ppobj -> ppobj
96 val repl_pblID : pblID -> ppobj -> ppobj
97 val repl_result : cterm' -> ostate -> ppobj -> ppobj
98 val repl_spec : spec -> ppobj -> ppobj
99 val repl_subs : (string * string) list -> ppobj -> ppobj *)
100 val rootthy : ptree -> domID
101 (* val test_trans : ppobj -> bool
102 val uni__asm : (string * pos) list -> ppobj -> ppobj
103 val uni__cid : cellID list -> ppobj -> ppobj *)
104 val union_asm : ptree -> pos -> (string * pos) list -> ptree
105 val union_cid : ptree -> pos -> cellID list -> ptree
106 val update_branch : ptree -> pos -> branch -> ptree
107 val update_domID : ptree -> pos -> domID -> ptree
108 val update_met : ptree -> pos -> meth -> ptree
109 val update_metppc : ptree -> pos -> item ppc -> ptree
110 val update_metID : ptree -> pos -> metID -> ptree
111 val update_tac : ptree -> pos -> tac -> ptree
112 val update_pbl : ptree -> pos -> pblID * item ppc -> ptree
113 val update_pblppc : ptree -> pos -> item ppc -> ptree
114 val update_pblID : ptree -> pos -> pblID -> ptree
115 val update_spec : ptree -> pos -> spec -> ptree
116 val update_subs : ptree -> pos -> (string * string) list -> ptree
118 val rep_pblobj : ppobj
119 -> {branch:branch, cell:cid, env:envp, loc:loc, meth:meth, model:cterm' ppc,
120 origin:cterm' list * spec, ostate:ostate, probl:pblID * item ppc,
121 result:cterm', spec:spec}
122 val rep_prfobj : ppobj
123 -> {branch:branch, cell:cid, form:cterm', loc:loc, tac:tac,
124 ostate:ostate, result:cterm'}
128 structure Ptree (**): PTREE (**) =
132 type env = (term * term) list;
136 NoBranch | AndB | OrB
137 | TransitiveB (* FIXXXME.8.03: set branch from met in Apply_Method
138 FIXXXME.0402: -"- in Begin_Trans'*)
139 | SequenceB | IntersectB | CollectB | MapB;
140 fun branch2str NoBranch = "NoBranch"
141 | branch2str AndB = "AndB"
142 | branch2str OrB = "OrB"
143 | branch2str TransitiveB = "TransitiveB"
144 | branch2str SequenceB = "SequenceB"
145 | branch2str IntersectB = "IntersectB"
146 | branch2str CollectB = "CollectB"
147 | branch2str MapB = "MapB";
150 Incomplete | Complete | Inconsistent(*WN041020 latter unused*);
151 fun ostate2str Incomplete = "Incomplete"
152 | ostate2str Complete = "Complete"
153 | ostate2str Inconsistent = "Inconsistent";
156 type cid = cellID list;
158 type posel = int; (* roundabout for (some of) nice signatures *)
159 type pos = posel list;
160 val pos2str = ints2str';
162 Pbl (*PblObj-position: problem-type*)
163 | Met (*PblObj-position: method*)
164 | Frm (*PblObj-position: -> Pbl in ME (not by moveDown !)
165 | PrfObj-position: formula*)
166 | Res (*PblObj | PrfObj-position: result*)
168 fun pos_2str Pbl = "Pbl"
169 | pos_2str Met = "Met"
170 | pos_2str Frm = "Frm"
171 | pos_2str Res = "Res"
172 | pos_2str Und = "Und";
174 type pos' = pos * pos_;
175 (*WN0312 remembering interator (pos * pos_) for ptree
176 pos : lev_on, lev_dn, lev_up,
177 lev_onFrm, lev_dnRes (..see solve Apply_Method !)
179 # generate1 sets pos_ if possible ...?WN0502?NOT...
180 # generate1 does NOT set pos, because certain nodes can be lev_on OR lev_dn
181 exceptions: Begin/End_Trans
182 # thus generate(1) called in
184 .# nxt_solv (tac_ -cases); general case:
185 val pos' = case pos' of (p,Res) => (lev_on p',Res) | _ => pos'
187 generate1...(Rewrite(f,..,res))..(pos, pos_)
188 cappend_atomic.................pos ////// gets f+res always!!!
189 cut_tree....................pos, pos_
191 fun pos'2str (p,p_) = pair2str (ints2str' p, pos_2str p_);
192 fun pos's2str ps = (strs2str' o (map pos'2str)) ps;
193 val e_pos' = ([],Und):pos';
195 fun res2str (t, ts) = pair2str (term2str t, terms2str ts);
199 (*26.4.02: never used after introduction of scripts !!!
200 type loc = loc_ * (* + interpreter-state *)
201 (loc_ * rls') (* -"- for script of the ruleset*)
203 val e_loc = ([],NONE):loc;
204 val ee_loc = (e_loc,e_loc);*)
207 datatype safe = Sundef | Safe | Unsafe | Helpless;
208 fun safe2str Sundef = "Sundef"
209 | safe2str Safe = "Safe"
210 | safe2str Unsafe = "Unsafe"
211 | safe2str Helpless = "Helpless";
213 type subs = cterm' list; (*16.11.00 for FE-KE*)
214 val e_subs = ["(bdv, x)"];
216 (*._sub_stitution as strings of _e_qualities.*)
217 type sube = cterm' list;
218 val e_sube = []:cterm' list;
219 fun sube2str s = strs2str s;
221 (*._sub_stitution as _t_erms of _e_qualities.*)
222 type subte = term list;
223 val e_subte = []:term list;
224 fun subte2str ss = terms2str ss;
226 fun subte2sube ss = map term2str ss;
228 fun subst2subs s = map (pair2str o (apfst term2str) o (apsnd term2str)) s;
229 fun subst2subs' s = map ((apfst term2str) o (apsnd term2str)) s;
230 fun subs2subst thy s = map (isapair2pair o term_of o the o (parse thy)) s;
231 (*> subs2subst thy ["(bdv,x)","(err,#0)"];
233 [(Free ("bdv","RealDef.real"),Free ("x","RealDef.real")),
234 (Free ("err","RealDef.real"),Free ("#0","RealDef.real"))]
235 : (term * term) list*)
236 (*["bdv=x","err=0"] ---> [(bdv,x), (err,0)]*)
237 fun sube2subst thy s = map (dest_equals' o term_of o the o (parse thy)) s;
238 (* val ts = sube2subst thy ["bdv=x","err=0"];
241 fun sube2subte ss = map str2term ss;
244 fun isasub2subst isasub = ((map isapair2pair) o isalist2list) isasub;
247 type scrstate = (*state for script interpreter*)
248 env(*stack*) (*used to instantiate tac for checking assod
249 12.03.noticed: e_ not updated during execution ?!?*)
250 * loc_ (*location of tac in script*)
251 * term option(*argument of curried functions*)
252 * term (*value obtained by tac executed
253 updated also after a derivation by 'new_val'*)
254 * safe (*estimation of how result will be obtained*)
255 * bool; (*true = strongly .., false = weakly associated:
256 only used during ass_dn/up*)
257 val e_scrstate = ([],[],NONE,e_term,Sundef,false):scrstate;
259 (* for handling type istate see fun from_pblobj_or_detail', +? *)
260 datatype istate = (*interpreter state*)
261 Uistate (*undefined in modspec, in '_deriv'ation*)
262 | ScrState of scrstate (*for script interpreter*)
263 | RrlsState of rrlsstate; (*for reverse rewriting*)
264 val e_istate = (ScrState ([],[],NONE,e_term,Sundef,false)):istate;
265 val e_ctxt = ProofContext.init_global @{theory "Pure"};
267 (* ATTENTION: does _not_ recognise Variable.declare_constraints, etc...*)
268 fun is_e_ctxt ctxt = Theory.eq_thy (ProofContext.theory_of ctxt, @{theory "Pure"});
270 type iist = istate option * istate option;
271 (*val e_iist = (e_istate, e_istate); --- sinnlos f"ur NICHT-equality-type*)
274 fun rta2str (r,(t,a)) = "\n("^(rule2str r)^",("^(term2str t)^", "^
276 fun istate2str Uistate = "Uistate"
277 | istate2str (ScrState (e,l,to,t,s,b):istate) =
278 "ScrState ("^ subst2str e ^",\n "^
279 loc_2str l ^", "^ termopt2str to ^",\n "^
280 term2str t ^", "^ safe2str s ^", "^ bool2str b ^")"
281 | istate2str (RrlsState (t,t1,rss,rtas)) =
282 "RrlsState ("^(term2str t)^", "^(term2str t1)^", "^
283 ((strs2str o (map (strs2str o (map rule2str)))) rss)^", "^
284 ((strs2str o (map rta2str)) rtas)^")";
285 fun istates2str (NONE, NONE) = "(#NONE, #NONE)"
286 | istates2str (NONE, SOME ist) = "(#NONE,\n#SOME "^istate2str ist^")"
287 | istates2str (SOME ist, NONE) = "(#SOME "^istate2str ist^",\n #NONE)"
288 | istates2str (SOME i1, SOME i2) = "(#SOME "^istate2str i1^",\n #SOME "^
291 fun new_val v (ScrState (env, loc_, topt, _, safe, bool)) =
292 (ScrState (env, loc_, topt, v, safe, bool))
293 | new_val _ _ = error "new_val: only for ScrState";
295 datatype con = land | lor;
299 domID * (*WN.12.03: is replaced by thy from get_met ?FIXME? in:
300 specify (Init_Proof..), nxt_specify_init_calc,
301 assod (.SubProblem...), stac2tac (.SubProblem...)*)
304 fun spec2str ((dom,pbl,met)(*:spec*)) =
305 "(" ^ (quote dom) ^ ", " ^ (strs2str pbl) ^
306 ", " ^ (strs2str met) ^ ")";
307 (*> spec2str empty_spec;
308 val it = "(\"\", [], (\"\", \"\"))" : string *)
309 val empty_spec = (e_domID,e_pblID,e_metID):spec;
310 val e_spec = empty_spec;
314 (*.tactics propagate the construction of the calc-tree;
316 (a) 'specsteps' for the specify-phase, and others for the solve-phase
317 (b) those of the solve-phase are 'initac's and others;
318 initacs start with a formula different from the preceding formula.
319 see 'type tac_' for the internal representation of tactics.*)
321 Init_Proof of ((cterm' list) * spec)
324 | Refine_Problem of pblID | Refine_Tacitly of pblID
326 | Add_Given of cterm' | Del_Given of cterm'
327 | Add_Find of cterm' | Del_Find of cterm'
328 | Add_Relation of cterm' | Del_Relation of cterm'
330 | Specify_Theory of domID | Specify_Problem of pblID
331 | Specify_Method of metID
333 | Apply_Method of metID
334 (*.creates an 'istate' in PblObj.env; in case of 'init_form'
335 creates a formula at ((lev_on o lev_dn) p, Frm) and in this ppobj.'loc'
336 'SOME istate' (at fst of 'loc').
337 As each step (in the solve-phase) has a resulting formula (at the front-end)
338 Apply_Method also does the 1st step in the script (an 'initac') if there
339 is no 'init_form' .*)
340 | Check_Postcond of pblID
343 | Rewrite_Inst of ( subs * thm') | Rewrite of thm'
344 | Rewrite_Asm of thm'
345 | Rewrite_Set_Inst of ( subs * rls') | Rewrite_Set of rls'
346 | Detail_Set_Inst of ( subs * rls') | Detail_Set of rls'
347 | End_Detail (*end of script from next_tac,
348 in solve: switches back to parent script WN0509 drop!*)
349 | Derive of rls' (*an input formula using rls WN0509 drop!*)
350 | Calculate of string (* plus | minus | times | cancel | pow | sqrt *)
352 | Substitute of sube | Apply_Assumption of cterm' list
354 | Take of cterm' (*an 'initac'*)
355 | Take_Inst of cterm'
356 | Group of (con * int list )
357 | Subproblem of (domID * pblID) (*an 'initac'*)
358 | CAScmd of cterm' (*6.6.02 URD: Function formula; WN0509 drop!*)
359 | End_Subproblem (*WN0509 drop!*)
361 | Split_And | Conclude_And
362 | Split_Or | Conclude_Or
363 | Begin_Trans | End_Trans
364 | Begin_Sequ | End_Sequ(* substitute root.env *)
365 | Split_Intersect | End_Intersect
366 | Check_elementwise of cterm' | Collect_Trues
369 | Empty_Tac (* TODO.11.6.03 ... of string: could carry msg of (Notappl msg)
371 | Tac of string (* eg.'repeat'*WN0509 drop! (ab)used to report syntaxerror *)
372 | User (* internal, for ets*WN0509 drop! *)
373 | End_Proof'; (* inout *)
375 (* tac2str /--> library.sml: needed in dialog.sml for 'separable *)
376 fun tac2str (ma:tac) = case ma of
377 Init_Proof (ppc, spec) =>
378 "Init_Proof "^(pair2str (strs2str ppc, spec2str spec))
379 | Model_Problem => "Model_Problem "
380 | Refine_Tacitly pblID => "Refine_Tacitly "^(strs2str pblID)
381 | Refine_Problem pblID => "Refine_Problem "^(strs2str pblID)
382 | Add_Given cterm' => "Add_Given "^cterm'
383 | Del_Given cterm' => "Del_Given "^cterm'
384 | Add_Find cterm' => "Add_Find "^cterm'
385 | Del_Find cterm' => "Del_Find "^cterm'
386 | Add_Relation cterm' => "Add_Relation "^cterm'
387 | Del_Relation cterm' => "Del_Relation "^cterm'
389 | Specify_Theory domID => "Specify_Theory "^(quote domID )
390 | Specify_Problem pblID => "Specify_Problem "^(strs2str pblID )
391 | Specify_Method metID => "Specify_Method "^(strs2str metID)
392 | Apply_Method metID => "Apply_Method "^(strs2str metID)
393 | Check_Postcond pblID => "Check_Postcond "^(strs2str pblID)
394 | Free_Solve => "Free_Solve"
396 | Rewrite_Inst (subs,thm')=>
397 "Rewrite_Inst "^(pair2str (subs2str subs, spair2str thm'))
398 | Rewrite thm' => "Rewrite "^(spair2str thm')
399 | Rewrite_Asm thm' => "Rewrite_Asm "^(spair2str thm')
400 | Rewrite_Set_Inst (subs, rls) =>
401 "Rewrite_Set_Inst "^(pair2str (subs2str subs, quote rls))
402 | Rewrite_Set rls => "Rewrite_Set "^(quote rls )
403 | Detail_Set rls => "Detail_Set "^(quote rls )
404 | Detail_Set_Inst (subs, rls) =>
405 "Detail_Set_Inst "^(pair2str (subs2str subs, quote rls))
406 | End_Detail => "End_Detail"
407 | Derive rls' => "Derive "^rls'
408 | Calculate op_ => "Calculate "^op_
409 | Substitute sube => "Substitute "^sube2str sube
410 | Apply_Assumption ct's => "Apply_Assumption "^(strs2str ct's)
412 | Take cterm' => "Take "^(quote cterm' )
413 | Take_Inst cterm' => "Take_Inst "^(quote cterm' )
414 | Group (con, ints) =>
415 "Group "^(pair2str (con2str con, ints2str ints))
416 | Subproblem (domID, pblID) =>
417 "Subproblem "^(pair2str (domID, strs2str pblID))
418 (*| Subproblem_Full (spec, cts') =>
419 "Subproblem_Full "^(pair2str (spec2str spec, strs2str cts'))*)
420 | End_Subproblem => "End_Subproblem"
421 | CAScmd cterm' => "CAScmd "^(quote cterm')
423 | Check_elementwise cterm'=> "Check_elementwise "^(quote cterm')
424 | Or_to_List => "Or_to_List "
425 | Collect_Trues => "Collect_Trues"
427 | Empty_Tac => "Empty_Tac"
428 | Tac string => "Tac "^string
430 | End_Proof' => "tac End_Proof'"
431 | _ => "tac2str not impl. for ?!";
433 fun is_rewset (Rewrite_Set_Inst _) = true
434 | is_rewset (Rewrite_Set _) = true
435 | is_rewset _ = false;
436 fun is_rewtac (Rewrite _) = true
437 | is_rewtac (Rewrite_Inst _) = true
438 | is_rewtac (Rewrite_Asm _) = true
439 | is_rewtac tac = is_rewset tac;
441 fun tac2IDstr (ma:tac) = case ma of
442 Model_Problem => "Model_Problem"
443 | Refine_Tacitly pblID => "Refine_Tacitly"
444 | Refine_Problem pblID => "Refine_Problem"
445 | Add_Given cterm' => "Add_Given"
446 | Del_Given cterm' => "Del_Given"
447 | Add_Find cterm' => "Add_Find"
448 | Del_Find cterm' => "Del_Find"
449 | Add_Relation cterm' => "Add_Relation"
450 | Del_Relation cterm' => "Del_Relation"
452 | Specify_Theory domID => "Specify_Theory"
453 | Specify_Problem pblID => "Specify_Problem"
454 | Specify_Method metID => "Specify_Method"
455 | Apply_Method metID => "Apply_Method"
456 | Check_Postcond pblID => "Check_Postcond"
457 | Free_Solve => "Free_Solve"
459 | Rewrite_Inst (subs,thm')=> "Rewrite_Inst"
460 | Rewrite thm' => "Rewrite"
461 | Rewrite_Asm thm' => "Rewrite_Asm"
462 | Rewrite_Set_Inst (subs, rls) => "Rewrite_Set_Inst"
463 | Rewrite_Set rls => "Rewrite_Set"
464 | Detail_Set rls => "Detail_Set"
465 | Detail_Set_Inst (subs, rls) => "Detail_Set_Inst"
466 | Derive rls' => "Derive "
467 | Calculate op_ => "Calculate "
468 | Substitute subs => "Substitute"
469 | Apply_Assumption ct's => "Apply_Assumption"
471 | Take cterm' => "Take"
472 | Take_Inst cterm' => "Take_Inst"
473 | Group (con, ints) => "Group"
474 | Subproblem (domID, pblID) => "Subproblem"
475 | End_Subproblem => "End_Subproblem"
476 | CAScmd cterm' => "CAScmd"
478 | Check_elementwise cterm'=> "Check_elementwise"
479 | Or_to_List => "Or_to_List "
480 | Collect_Trues => "Collect_Trues"
482 | Empty_Tac => "Empty_Tac"
483 | Tac string => "Tac "
485 | End_Proof' => "End_Proof'"
486 | _ => "tac2str not impl. for ?!";
488 fun rls_of (Rewrite_Set_Inst (_, rls)) = rls
489 | rls_of (Rewrite_Set rls) = rls
490 | rls_of tac = error ("rls_of: called with tac '"^tac2IDstr tac^"'");
492 fun thm_of_rew (Rewrite_Inst (subs,(thmID,_))) =
493 (thmID, SOME ((subs2subst (assoc_thy "Isac") subs):subst))
494 | thm_of_rew (Rewrite (thmID,_)) = (thmID, NONE)
495 | thm_of_rew (Rewrite_Asm (thmID,_)) = (thmID, NONE);
497 fun rls_of_rewset (Rewrite_Set_Inst (subs,rls)) =
498 (rls, SOME ((subs2subst (assoc_thy "Isac") subs):subst))
499 | rls_of_rewset (Rewrite_Set rls) = (rls, NONE)
500 | rls_of_rewset (Detail_Set rls) = (rls, NONE)
501 | rls_of_rewset (Detail_Set_Inst (subs, rls)) =
502 (rls, SOME ((subs2subst (assoc_thy "Isac") subs):subst));
504 fun rule2tac _ (Calc (opID, thm)) = Calculate (calID2calcID opID)
505 | rule2tac [] (Thm (thmID, thm)) = Rewrite (thmID, string_of_thmI thm)
506 | rule2tac subst (Thm (thmID, thm)) =
507 Rewrite_Inst (subst2subs subst, (thmID, string_of_thmI thm))
508 | rule2tac [] (Rls_ rls) = Rewrite_Set (id_rls rls)
509 | rule2tac subst (Rls_ rls) =
510 Rewrite_Set_Inst (subst2subs subst, (id_rls rls))
512 error ("rule2tac: called with '" ^ rule2str rule ^ "'");
514 type fmz_ = cterm' list;
516 (*.a formalization of an example containing data
517 sufficient for mechanically finding the solution for the example.*)
518 (*FIXME.WN051014: dont store fmz = (_,spec) in the PblObj,
519 this is done in origin*)
520 type fmz = fmz_ * spec;
521 val e_fmz = ([],e_spec);
523 (* tac_ is made from tac in applicable_in,
524 and carries all data necessary for generate *)
526 Init_Proof' of ((cterm' list) * spec)
527 | Model_Problem' of pblID *
528 itm list * (*the 'untouched' pbl*)
529 itm list (*the casually completed met*)
530 | Refine_Tacitly' of pblID * (*input*)
531 pblID * (*the refined from applicable_in*)
532 domID * (*from new pbt?! filled in specify*)
533 metID * (*from new pbt?! filled in specify*)
534 itm list (*drop ! 9.03: remains [] for
535 Model_Problem recognizing its activation*)
536 | Refine_Problem' of (pblID * (itm list * (bool * Term.term) list))
537 (*FIXME?040215 drop: done automatically in init_proof + Subproblem'*)
538 | Add_Given' of cterm' *
539 itm list (*updated with input in fun specify_additem*)
540 | Add_Find' of cterm' *
541 itm list (*updated with input in fun specify_additem*)
542 | Add_Relation' of cterm' *
543 itm list (*updated with input in fun specify_additem*)
544 | Del_Given' of cterm' | Del_Find' of cterm' | Del_Relation' of cterm'
545 (*4.00.: all.. term: in applicable_in ..? Syn ?only for FormFK?*)
547 | Specify_Theory' of domID
548 | Specify_Problem' of (pblID * (* *)
549 (bool * (* matches *)
550 (itm list * (* ppc *)
551 (bool * term) list))) (* preconditions *)
552 | Specify_Method' of metID *
553 ori list * (*repl. "#undef"*)
554 itm list (*... updated from pbl to met*)
555 | Apply_Method' of metID *
556 (term option) * (*init_form*)
557 istate * Proof.context
560 (term * (*returnvalue of script in solve*)
561 term list) (*collect by get_assumptions_ in applicable_in, except if
562 butlast tac is Check_elementwise: take only these asms*)
565 | Rewrite_Inst' of theory' * rew_ord' * rls
566 * bool * subst * thm' * term * (term * term list)
567 | Rewrite' of theory' * rew_ord' * rls * bool * thm' *
568 term * (term * term list)
569 | Rewrite_Asm' of theory' * rew_ord' * rls * bool * thm' *
570 term * (term * term list)
571 | Rewrite_Set_Inst' of theory' * bool * subst * rls *
572 term * (term * term list)
573 | Detail_Set_Inst' of theory' * bool * subst * rls *
574 term * (term * term list)
575 | Rewrite_Set' of theory' * bool * rls * term * (term * term list)
576 | Detail_Set' of theory' * bool * rls * term * (term * term list)
577 | End_Detail' of (term * (term list)) (*see End_Trans'*)
578 | End_Ruleset' of term
580 | Calculate' of theory' * string * term * (term * thm')
581 (*WN.29.4.03 asm?: * term list??*)
582 | Substitute' of subte (*the 'substitution': terms of type bool*)
583 * term (*to be substituted in*)
584 * term (*resulting from the substitution*)
585 | Apply_Assumption' of term list * term
587 | Take' of term | Take_Inst' of term
588 | Group' of (con * int list * term)
589 | Subproblem' of (spec *
590 (ori list) * (* filled in assod Subproblem' *)
591 term * (*-"-, headline of calc-head *)
593 Proof.context *(* transported from assod to generate1 *)
594 term) (* Subproblem(dom,pbl) OR cascmd*)
596 | End_Subproblem' of term (*???*)
597 | Split_And' of term | Conclude_And' of term
598 | Split_Or' of term | Conclude_Or' of term
599 | Begin_Trans' of term | End_Trans' of (term * (term list))
600 | Begin_Sequ' | End_Sequ'(* substitute root.env*)
601 | Split_Intersect' of term | End_Intersect' of term
602 | Check_elementwise' of (*special case:*)
603 term * (*(1)the current formula: [x=1,x=...]*)
604 string * (*(2)the pred from Check_elementwise *)
605 (term * (*(3)composed from (1) and (2): {x. pred}*)
606 term list) (*20.5.03 assumptions*)
608 | Or_to_List' of term * term (* (a | b, [a,b]) *)
609 | Collect_Trues' of term
611 | Empty_Tac_ | Tac_ of (*for dummies*)
615 string (*result of Tac".."*)
616 | User' (*internal for ets*) | End_Proof'';(*End_Proof:inout*)
618 fun tac_2str ma = case ma of
619 Init_Proof' (ppc, spec) =>
620 "Init_Proof' "^(pair2str (strs2str ppc, spec2str spec))
621 | Model_Problem' (pblID,_,_) => "Model_Problem' "^(strs2str pblID )
622 | Refine_Tacitly'(p,prefin,domID,metID,itms)=>
624 ^(strs2str p)^", "^(strs2str prefin)^", "
625 ^domID^", "^(strs2str metID)^", pbl-itms)"
626 | Refine_Problem' ms => "Refine_Problem' ("^(*matchs2str ms*)"..."^")"
627 (*| Match_Problem' (pI, (ok, (itms, pre))) =>
628 "Match_Problem' "^(spair2str (strs2str pI,
629 spair2str (bool2str ok,
630 spair2str ("itms2str_ itms",
631 "items2str pre"))))*)
632 | Add_Given' cterm' => "Add_Given' "(*^cterm'*)
633 | Del_Given' cterm' => "Del_Given' "(*^cterm'*)
634 | Add_Find' cterm' => "Add_Find' "(*^cterm'*)
635 | Del_Find' cterm' => "Del_Find' "(*^cterm'*)
636 | Add_Relation' cterm' => "Add_Relation' "(*^cterm'*)
637 | Del_Relation' cterm' => "Del_Relation' "(*^cterm'*)
639 | Specify_Theory' domID => "Specify_Theory' "^(quote domID )
640 | Specify_Problem' (pI, (ok, (itms, pre))) =>
641 "Specify_Problem' "^(spair2str (strs2str pI,
642 spair2str (bool2str ok,
643 spair2str ("itms2str_ itms",
645 | Specify_Method' (pI,oris,itms) =>
646 "Specify_Method' ("^metID2str pI^", "^oris2str oris^", )"
648 | Apply_Method' (metID,_,_,_) => "Apply_Method' "^(strs2str metID)
649 | Check_Postcond' (pblID,(scval,asm)) =>
651 (spair2str (strs2str pblID, spair2str (term2str scval, terms2str asm)))
653 | Free_Solve' => "Free_Solve'"
655 | Rewrite_Inst' (*subs,thm'*) _ =>
656 "Rewrite_Inst' "(*^(pair2str (subs2str subs, spair2str thm'))*)
657 | Rewrite' thm' => "Rewrite' "(*^(spair2str thm')*)
658 | Rewrite_Asm' thm' => "Rewrite_Asm' "(*^(spair2str thm')*)
659 | Rewrite_Set_Inst' (*subs,thm'*) _ =>
660 "Rewrite_Set_Inst' "(*^(pair2str (subs2str subs, quote rls))*)
661 | Rewrite_Set' (thy', pasm, rls', f, (f', asm)) =>
662 "Rewrite_Set' (" ^ thy' ^ "," ^ bool2str pasm ^ "," ^ id_rls rls' ^ "," ^
663 term2str f ^ ",(" ^ term2str f' ^ "," ^ terms2str asm ^ "))"
664 | End_Detail' _ => "End_Detail' xxx"
665 | Detail_Set' _ => "Detail_Set' xxx"
666 | Detail_Set_Inst' _ => "Detail_Set_Inst' xxx"
668 | Derive' rls => "Derive' "^id_rls rls
669 | Calculate' _ => "Calculate' "
670 | Substitute' subs => "Substitute' "(*^(subs2str subs)*)
671 | Apply_Assumption' ct's => "Apply_Assumption' "(*^(strs2str ct's)*)
673 | Take' cterm' => "Take' "(*^(quote cterm' )*)
674 | Take_Inst' cterm' => "Take_Inst' "(*^(quote cterm' )*)
675 | Group' (con, ints, _) =>
676 "Group' "^(pair2str (con2str con, ints2str ints))
677 | Subproblem' (spec, oris, _, _, _, pbl_form) =>
678 "Subproblem' "(*^(pair2str (domID, strs2str ,...))*)
679 | End_Subproblem' _ => "End_Subproblem'"
680 | CAScmd' cterm' => "CAScmd' "(*^(quote cterm')*)
682 | Empty_Tac_ => "Empty_Tac_"
684 | Tac_ (_,form,id,result) => "Tac_ (thy,"^form^","^id^","^result^")"
685 | _ => "tac_2str not impl. for arg";
687 (*'executed tactics' (tac_s) with local environment etc.;
688 used for continuing eval script + for generate*)
690 (loc_ * (* of tactic in scr, tactic (weakly) associated with tac_*)
691 (tac_ * (* (for generate) *)
692 env * (* with 'tactic=result' as a rule, tactic ev. _not_ ready:
693 for handling 'parallel let'*)
694 env * (* with results of (ready) tacs *)
695 term * (* itr_arg of tactic, for upd. env at Repeat, Try*)
696 term * (* result value of the tac *)
702 fun ets2s (l,(m,eno,env,iar,res,s)) =
703 "\n(" ^ loc_2str l ^ ",(" ^ tac_2str m ^
704 ",\n ens= " ^ subst2str eno ^
705 ",\n env= " ^ subst2str env ^
706 ",\n iar= " ^ term2str iar ^
707 ",\n res= " ^ term2str res ^
708 ",\n " ^ safe2str s ^ "))";
709 fun ets2str (ets:ets) = (strs2str o (map ets2s)) ets;
712 type envp =(*9.5.03: unused, delete with field in ptree.PblObj FIXXXME*)
713 (int * term list) list * (*assoc-list: args of met*)
714 (int * rls) list * (*assoc-list: tacs already done ///15.9.00*)
715 (int * ets) list * (*assoc-list: tacs etc. already done*)
716 (string * pos) list; (*asms * from where*)
717 val empty_envp = ([],[],[],[]):envp;
721 {cell : lrd option, (* where in form tac has been applied *)
722 (*^^^FIXME.WN0607 rename this field*)
723 form : term, (* where tac is applied to *)
724 tac : tac, (* also in istate *)
725 loc : (istate * (* script interpreter state *)
726 Proof.context) (* context for provers, type inference *)
727 option * (* both for interpreter location on Frm, Pbl, Met *)
728 (istate * (* script interpreter state *)
729 Proof.context) (* context for provers, type inference *)
730 option, (* both for interpreter location on Res *)
731 (*(NONE,NONE) <==> e_istate ! see update_loc, get_loc*)
732 branch: branch, (* only rudimentary *)
733 result: term * term list, (* result and assumptions *)
734 ostate: ostate} (* Complete <=> result is OK *)
736 {cell : lrd option, (* unused: meaningful only for some _Prf_Obj *)
737 fmz : fmz, (* from init:FIXME never use this spec;-drop *)
738 origin: (ori list) * (* representation from fmz+pbt
739 for efficiently adding items in probl, meth *)
740 spec * (* updated by Refine_Tacitly *)
741 term, (* headline of calc-head, as calculated initially(!)*)
742 spec : spec, (* explicitly input *)
743 probl : itm list, (* itms explicitly input *)
744 meth : itm list, (* itms automatically added to copy of probl *)
745 ctxt : Proof.context, (* WN110513 introduced to avoid [*] [**]*)
746 env : (istate * Proof.context) option,
747 (* istate only for initac in script
748 context for specify phase on this node NO..
749 ..NO: this conflicts with init_form/initac: see Apply_Method without init_form *)
750 loc : (istate * Proof.context) option * (istate * (* like PrfObj *)
751 Proof.context) option, (* for spec-phase [*], NO..
752 ..NO: raises errors not tracable on WN110513 [**]*)
753 branch: branch, (* like PrfObj *)
754 result: term * term list, (* like PrfObj *)
755 ostate: ostate}; (* like PrfObj *)
757 (*.this tree contains isac's calculations; TODO.WN03 rename to ctree;
758 the structure has been copied from an early version of Theorema(c);
759 it has the disadvantage, that there is no space
760 for the first tactic in a script generating the first formula at (p,Frm);
761 this trouble has been covered by 'init_form' and 'Take' so far,
762 but it is crucial if the first tactic in a script is eg. 'Subproblem';
763 see 'type tac ', Apply_Method.
767 | Nd of ppobj * (ptree list);
768 val e_ptree = EmptyPtree;
770 fun rep_prfobj (PrfObj {cell,form,tac,loc,branch,result,ostate}) =
771 {cell=cell,form=form,tac=tac,loc=loc,branch=branch,result=result,ostate=ostate};
772 fun rep_pblobj (PblObj {cell,origin,fmz,spec,probl,meth,ctxt,
773 env,loc,branch,result,ostate}) =
774 {cell=cell,origin=origin,fmz=fmz,spec=spec,probl=probl,meth=meth,ctxt=ctxt,
775 env=env,loc=loc,branch=branch,result=result,ostate=ostate};
776 fun is_prfobj (PrfObj _) = true
777 | is_prfobj _ =false;
778 (*val is_prfobj' = get_obj is_prfobj; *)
779 fun is_pblobj (PblObj _) = true
780 | is_pblobj _ = false;
781 (*val is_pblobj' = get_obj is_pblobj; 'Error: unbound constructor get_obj'*)
784 exception PTREE of string;
785 fun nth _ [] = raise PTREE "nth _ []"
787 | nth n (x::xs) = nth (n-1) xs;
788 (*> nth 2 [11,22,33]; -->> val it = 22 : int*)
790 fun lev_up ([]:pos) = raise PTREE "lev_up []"
791 | lev_up p = (drop_last p):pos;
792 fun lev_on ([]:pos) = raise PTREE "lev_on []"
794 let val len = length pos
795 in (drop_last pos) @ [(nth len pos)+1] end;
796 fun lev_onFrm ((p,_):pos') = (lev_on p,Frm):pos'
797 | lev_onFrm p = raise PTREE ("*** lev_onFrm: pos'="^(pos'2str p));
798 (*040216: for inform --> embed_deriv: remains on same level*)
799 fun lev_back (([],_):pos') = raise PTREE "lev_on_back: called by ([],_)"
801 if last_elem p <= 1 then (p, Frm):pos'
802 else ((drop_last p) @ [(nth (length p) p) - 1], Res);
803 (*.increase pos by n within a level.*)
804 fun pos_plus 0 pos = pos
805 | pos_plus n ((p,Frm):pos') = pos_plus (n-1) (p, Res)
806 | pos_plus n ((p, _):pos') = pos_plus (n-1) (lev_on p, Res);
810 fun lev_pred ([]:pos) = raise PTREE "lev_pred []"
811 | lev_pred (pos:pos) =
812 let val len = length pos
813 in ((drop_last pos) @ [(nth len pos)-1]):pos end;
815 val it = [1,2,2] : pos
817 val it = [0] : pos *)
819 fun lev_dn p = p @ [0];
820 (*> (lev_dn o lev_on) [1,2,3];
821 val it = [1,2,4,0] : pos *)
822 (*fun lev_dn' ((p,p_):pos') = (lev_dn p, Frm):pos'; WN.3.12.03: never used*)
823 fun lev_dnRes ((p,_):pos') = (lev_dn p, Res):pos';
826 fun lev_up_ ((p,Res):pos') = (lev_up p,Res):pos'
827 | lev_up_ p' = error ("lev_up_: called for "^(pos'2str p'));
828 fun lev_dn_ ((p,_):pos') = (lev_dn p,Res):pos'
829 fun ind ((p,_):pos') = length p; (*WN050108 deprecated in favour of lev_of*)
830 fun lev_of ((p,_):pos') = length p;
833 (** convert ptree to a string **)
835 (* convert a pos from list to string *)
836 fun pr_pos ps = (space_implode "." (map string_of_int ps))^". ";
837 (* show hd origin or form only *)
838 fun pr_short (p:pos) (PblObj {origin = (ori,_,_),...}) =
839 ((pr_pos p) ^ " ----- pblobj -----\n")
840 (* ((((Syntax.string_of_term (thy2ctxt' "Isac")) o #4 o hd) ori)^" "^
841 (((Syntax.string_of_term (thy2ctxt' "Isac")) o hd(*!?!*) o #5 o hd) ori))^
843 | pr_short p (PrfObj {form = form,...}) =
844 ((pr_pos p) ^ (term2str form) ^ "\n");
846 fun pr_cell (p:pos) (PblObj {cell = c, origin = (ori,_,_),...}) =
848 ((((Syntax.string_of_term (thy2ctxt' "Isac")) o #4 o hd) ori)^" "^
849 (((Syntax.string_of_term (thy2ctxt' "Isac")) o hd(*!?!*) o #5 o hd) ori))^
851 | pr_cell p (PrfObj {cell = c, form = form,...}) =
852 ((ints2str c) ^" "^ (term2str form) ^ "\n");
858 fun pr_pt pfn _ EmptyPtree = ""
859 | pr_pt pfn ps (Nd (b, [])) = pfn ps b
860 | pr_pt pfn ps (Nd (b, ts)) = (pfn ps b)^
861 (prts pfn (ps:pos) 1 ts)
862 and prts pfn ps p [] = ""
863 | prts pfn ps p (t::ts) = (pr_pt pfn (ps @ [p]) t)^
864 (prts pfn ps (p+1) ts)
865 in pr_pt f [] pt end;
867 > fun prfn ps b = (pr_pos ps)^" "^b(*TODO*)^"\n";
868 > val pt = Unsynchronized.ref EmptyPtree;
875 > tracing (pr_ptree prfn (!pt));
879 (** access the branches of ptree **)
881 fun ins_nth 1 e l = e::l
882 | ins_nth n e [] = raise PTREE "ins_nth n e []"
883 | ins_nth n e (l::ls) = l::(ins_nth (n-1) e ls);
884 fun repl [] _ _ = raise PTREE "repl [] _ _"
885 | repl (l::ls) 1 e = e::ls
886 | repl (l::ls) n e = l::(repl ls (n-1) e);
887 fun repl_app ls n e =
888 let val lim = 1 + length ls
889 in if n > lim then raise PTREE "repl_app: n > lim"
890 else if n = lim then ls @ [e]
891 else repl ls n e end;
893 > repl [1,2,3] 2 22222;
894 val it = [1,22222,3] : int list
895 > repl_app [1,2,3,4] 5 5555;
896 val it = [1,2,3,4,5555] : int list
897 > repl_app [1,2,3] 2 22222;
898 val it = [1,22222,3] : int list
899 > repl_app [1] 2 22222 ;
900 val it = [1,22222] : int list
904 (*.get from obj at pos by f : ppobj -> 'a.*)
905 fun get_obj f EmptyPtree (_:pos) = raise PTREE "get_obj f EmptyPtree"
906 | get_obj f (Nd (b, _)) [] = f b
907 | get_obj f (Nd (b, bs)) (p::ps) =
908 (* val (f, Nd (b, bs), (p::ps)) = (I, pt, p);
910 let val _ = (nth p bs) handle _ => raise PTREE ("get_obj: pos = "^
911 (ints2str' (p::ps))^" does not exist");
912 in (get_obj f (nth p bs) (ps:pos))
913 (*before WN050419: 'wrong type..' raised also if pos doesn't exist*)
914 handle _ => raise PTREE (*"get_obj: at pos = "^
915 (ints2str' (p::ps))^" wrong type of ppobj"*)
917 (ints2str' (p::ps))^" does not exist")
919 fun get_nd EmptyPtree _ = raise PTREE "get_nd EmptyPtree"
921 | get_nd (Nd (_,nds)) (pos as p::(ps:pos)) = (get_nd (nth p nds) ps)
922 handle _ => raise PTREE ("get_nd: not existent pos = "^(ints2str' pos));
925 (* for use by get_obj *)
926 fun g_cell (PblObj {cell = c,...}) = NONE
927 | g_cell (PrfObj {cell = c,...}) = c;(*WN0607 hack for quick introduction of lrd + rewrite-at (thms, calcs)*)
928 fun g_form (PrfObj {form = f,...}) = f
929 | g_form (PblObj {origin=(_,_,f),...}) = f;
930 fun g_form' (Nd (PrfObj {form = f,...}, _)) = f
931 | g_form' (Nd (PblObj {origin=(_,_,f),...}, _)) = f;
932 (* | g_form _ = raise PTREE "g_form not for PblObj";*)
933 fun g_origin (PblObj {origin = ori,...}) = ori
934 | g_origin _ = raise PTREE "g_origin not for PrfObj";
935 fun g_fmz (PblObj {fmz = f,...}) = f
936 | g_fmz _ = raise PTREE "g_fmz not for PrfObj";
937 fun g_spec (PblObj {spec = s,...}) = s
938 | g_spec _ = raise PTREE "g_spec not for PrfObj";
939 fun g_pbl (PblObj {probl = p,...}) = p
940 | g_pbl _ = raise PTREE "g_pbl not for PrfObj";
941 fun g_met (PblObj {meth = p,...}) = p
942 | g_met _ = raise PTREE "g_met not for PrfObj";
943 fun g_domID (PblObj {spec = (d,_,_),...}) = d
944 | g_domID _ = raise PTREE "g_metID not for PrfObj";
945 fun g_metID (PblObj {spec = (_,_,m),...}) = m
946 | g_metID _ = raise PTREE "g_metID not for PrfObj";
947 fun g_ctxt (PblObj {ctxt, ...}) = ctxt
948 | g_ctxt _ = raise PTREE "g_ctxt not for PrfObj";
949 fun g_env (PblObj {env,...}) = env
950 | g_env _ = raise PTREE "g_env not for PrfObj";
951 fun g_loc (PblObj {loc = l,...}) = l
952 | g_loc (PrfObj {loc = l,...}) = l;
953 fun g_branch (PblObj {branch = b,...}) = b
954 | g_branch (PrfObj {branch = b,...}) = b;
955 fun g_tac (PblObj {spec = (d,p,m),...}) = Apply_Method m
956 | g_tac (PrfObj {tac = m,...}) = m;
957 fun g_result (PblObj {result = r,...}) = r
958 | g_result (PrfObj {result = r,...}) = r;
959 fun g_res (PblObj {result = (r,_),...}) = r
960 | g_res (PrfObj {result = (r,_),...}) = r;
961 fun g_res' (Nd (PblObj {result = (r,_),...}, _)) = r
962 | g_res' (Nd (PrfObj {result = (r,_),...}, _)) = r;
963 fun g_ostate (PblObj {ostate = r,...}) = r
964 | g_ostate (PrfObj {ostate = r,...}) = r;
965 fun g_ostate' (Nd (PblObj {ostate = r,...}, _)) = r
966 | g_ostate' (Nd (PrfObj {ostate = r,...}, _)) = r;
968 fun gpt_cell (Nd (PblObj {cell = c,...},_)) = NONE
969 | gpt_cell (Nd (PrfObj {cell = c,...},_)) = c;
971 (*in CalcTree/Subproblem an 'just_created_' model is created;
972 this is filled to 'untouched' by Model/Refine_Problem*)
973 fun just_created_ (PblObj {meth, probl, spec, ...}) =
974 null meth andalso null probl andalso spec = e_spec;
975 val e_origin = ([],e_spec,e_term): (ori list) * spec * term;
977 fun just_created (pt,(p,_):pos') =
978 let val ppobj = get_obj I pt p
979 in is_pblobj ppobj andalso just_created_ ppobj end;
981 (*.does the pos in the ctree exist ?.*)
982 fun existpt pos pt = can (get_obj I pt) pos;
983 (*.does the pos' in the ctree exist, ie. extra check for result in the node.*)
984 fun existpt' ((p,p_):pos') pt =
985 if can (get_obj I pt) p
987 Res => get_obj g_ostate pt p = Complete
991 (*.is this position appropriate for calculating intermediate steps?.*)
992 fun is_interpos ((_, Res):pos') = true
993 | is_interpos _ = false;
995 fun last_onlev pt pos = not (existpt (lev_on pos) pt);
998 (*.find the position of the next parent which is a PblObj in ptree.*)
999 fun par_pblobj pt ([]:pos) = ([]:pos)
1001 let fun par pt [] = []
1002 | par pt p = if is_pblobj (get_obj I pt p) then p
1003 else par pt (lev_up p)
1004 in par pt (lev_up p) end;
1005 (* lev_up for hard_gen operating with pos = [...,0] *)
1007 (*.find the position and the children of the next parent which is a PblObj.*)
1008 fun par_children (Nd (PblObj _, children)) ([]:pos) = (children, []:pos)
1009 | par_children (pt as Nd (PblObj _, children)) p =
1010 let fun par [] = (children, [])
1011 | par p = let val Nd (obj, children) = get_nd pt p
1012 in if is_pblobj obj then (children, p) else par (lev_up p)
1014 in par (lev_up p) end;
1016 (*.get the children of a node in ptree.*)
1017 fun children (Nd (PblObj _, cn)) = cn
1018 | children (Nd (PrfObj _, cn)) = cn;
1021 (*.find the next parent, which is either a PblObj (return true)
1022 or a PrfObj with tac = Detail_Set (return false).*)
1023 (*FIXME.3.4.03:re-organize par_pbl_det after rls' --> rls*)
1024 fun par_pbl_det pt ([]:pos) = (true, []:pos, Erls)
1025 | par_pbl_det pt p =
1026 let fun par pt [] = (true, [], Erls)
1027 | par pt p = if is_pblobj (get_obj I pt p) then (true, p, Erls)
1028 else case get_obj g_tac pt p of
1029 (*Detail_Set rls' => (false, p, assoc_rls rls')
1030 (*^^^--- before 040206 after ---vvv*)
1031 |*)Rewrite_Set rls' => (false, p, assoc_rls rls')
1032 | Rewrite_Set_Inst (_, rls') =>
1033 (false, p, assoc_rls rls')
1034 | _ => par pt (lev_up p)
1035 in par pt (lev_up p) end;
1040 (*.get from the whole ptree by f : ppobj -> 'a.*)
1041 fun get_all f EmptyPtree = []
1042 | get_all f (Nd (b, [])) = [f b]
1043 | get_all f (Nd (b, bs)) = [f b] @ (get_alls f bs)
1044 and get_alls f [] = []
1045 | get_alls f pts = flat (map (get_all f) pts);
1048 (*.insert obj b into ptree at pos, ev.overwriting this pos.
1049 covers library.ML TODO.WN110315 rename*)
1050 fun insert b EmptyPtree ([]:pos) = Nd (b, [])
1051 | insert b EmptyPtree _ = raise PTREE "insert b Empty _"
1052 | insert b (Nd ( _, _)) [] = raise PTREE "insert b _ []"
1053 | insert b (Nd (b', bs)) (p::[]) =
1054 Nd (b', repl_app bs p (Nd (b,[])))
1055 | insert b (Nd (b', bs)) (p::ps) =
1056 Nd (b', repl_app bs p (insert b (nth p bs) ps));
1058 > type ppobj = string;
1059 > tracing (pr_ptree prfn (!pt));
1060 val pt = Unsynchronized.ref Empty;
1061 pt:= insert ("root'":ppobj) EmptyPtree [];
1062 pt:= insert ("xx1":ppobj) (!pt) [1];
1063 pt:= insert ("xx2":ppobj) (!pt) [2];
1064 pt:= insert ("xx3":ppobj) (!pt) [3];
1065 pt:= insert ("xx2.1":ppobj) (!pt) [2,1];
1066 pt:= insert ("xx2.2":ppobj) (!pt) [2,2];
1067 pt:= insert ("xx2.1.1":ppobj) (!pt) [2,1,1];
1068 pt:= insert ("xx2.1.2":ppobj) (!pt) [2,1,2];
1069 pt:= insert ("xx2.1.3":ppobj) (!pt) [2,1,3];
1072 (*.insert children to a node without children.*)
1073 (*compare: fun insert*)
1074 fun ins_chn _ EmptyPtree (_:pos) = raise PTREE "ins_chn: EmptyPtree"
1075 | ins_chn ns (Nd _) [] = raise PTREE "ins_chn: pos = []"
1076 | ins_chn ns (Nd (b, bs)) (p::[]) =
1077 if p > length bs then raise PTREE "ins_chn: pos not existent"
1078 else let val Nd (b', bs') = nth p bs
1079 in if null bs' then Nd (b, repl_app bs p (Nd (b', ns)))
1080 else raise PTREE "ins_chn: pos mustNOT be overwritten" end
1081 | ins_chn ns (Nd (b, bs)) (p::ps) =
1082 Nd (b, repl_app bs p (ins_chn ns (nth p bs) ps));
1084 (* print_depth 11;ins_chn;print_depth 3; ###insert#########################*);
1087 (** apply f to obj at pos, f: ppobj -> ppobj **)
1089 fun appl_to_node f (Nd (b,bs)) = Nd (f b, bs);
1090 fun appl_obj f EmptyPtree [] = EmptyPtree
1091 | appl_obj f EmptyPtree _ = raise PTREE "appl_obj f Empty _"
1092 | appl_obj f (Nd (b, bs)) [] = Nd (f b, bs)
1093 | appl_obj f (Nd (b, bs)) (p::[]) =
1094 Nd (b, repl_app bs p (((appl_to_node f) o (nth p)) bs))
1095 | appl_obj f (Nd (b, bs)) (p::ps) =
1096 Nd (b, repl_app bs p (appl_obj f (nth p bs) (ps:pos)));
1098 (* for use by appl_obj *)
1099 fun repl_form f (PrfObj {cell=c,form= _,tac=tac,loc=loc,
1100 branch=branch,result=result,ostate=ostate}) =
1101 PrfObj {cell=c,form= f,tac=tac,loc=loc,
1102 branch=branch,result=result,ostate=ostate}
1103 | repl_form _ _ = raise PTREE "repl_form takes no PblObj";
1104 fun repl_pbl x (PblObj {cell=cell,origin=origin,fmz=fmz,
1105 spec=spec,probl=_,meth=meth,ctxt=ctxt,env=env,loc=loc,
1106 branch=branch,result=result,ostate=ostate}) =
1107 PblObj {cell=cell,origin=origin,fmz=fmz,spec=spec,probl= x,
1108 meth=meth,ctxt=ctxt,env=env,loc=loc,branch=branch,result=result,ostate=ostate}
1109 | repl_pbl _ _ = raise PTREE "repl_pbl takes no PrfObj";
1110 fun repl_met x (PblObj {cell=cell,origin=origin,fmz=fmz,
1111 spec=spec,probl=probl,meth=_,ctxt=ctxt,env=env,loc=loc,
1112 branch=branch,result=result,ostate=ostate}) =
1113 PblObj {cell=cell,origin=origin,fmz=fmz,spec=spec,probl=probl,
1114 meth= x,ctxt=ctxt,env=env,loc=loc,branch=branch,result=result,ostate=ostate}
1115 | repl_met _ _ = raise PTREE "repl_pbl takes no PrfObj";
1117 fun repl_spec x (PblObj {cell=cell,origin=origin,fmz=fmz,
1118 spec= _,probl=probl,meth=meth,ctxt=ctxt,env=env,loc=loc,
1119 branch=branch,result=result,ostate=ostate}) =
1120 PblObj {cell=cell,origin=origin,fmz=fmz,spec= x,probl=probl,
1121 meth=meth,ctxt=ctxt,env=env,loc=loc,branch=branch,result=result,ostate=ostate}
1122 | repl_spec _ _ = raise PTREE "repl_domID takes no PrfObj";
1123 fun repl_domID x (PblObj {cell=cell,origin=origin,fmz=fmz,
1124 spec=(_,p,m),probl=probl,meth=meth,ctxt=ctxt,env=env,loc=loc,
1125 branch=branch,result=result,ostate=ostate}) =
1126 PblObj {cell=cell,origin=origin,fmz=fmz,spec=(x,p,m),probl=probl,
1127 meth=meth,ctxt=ctxt,env=env,loc=loc,branch=branch,result=result,ostate=ostate}
1128 | repl_domID _ _ = raise PTREE "repl_domID takes no PrfObj";
1129 fun repl_pblID x (PblObj {cell=cell,origin=origin,fmz=fmz,
1130 spec=(d,_,m),probl=probl,meth=meth,ctxt=ctxt,env=env,loc=loc,
1131 branch=branch,result=result,ostate=ostate}) =
1132 PblObj {cell=cell,origin=origin,fmz=fmz,spec=(d,x,m),probl=probl,
1133 meth=meth,ctxt=ctxt,env=env,loc=loc,branch=branch,result=result,ostate=ostate}
1134 | repl_pblID _ _ = raise PTREE "repl_pblID takes no PrfObj";
1135 fun repl_metID x (PblObj {cell=cell,origin=origin,fmz=fmz,
1136 spec=(d,p,_),probl=probl,meth=meth,ctxt=ctxt,env=env,loc=loc,
1137 branch=branch,result=result,ostate=ostate}) =
1138 PblObj {cell=cell,origin=origin,fmz=fmz,spec=(d,p,x),probl=probl,
1139 meth=meth,ctxt=ctxt,env=env,loc=loc,branch=branch,result=result,ostate=ostate}
1140 | repl_metID _ _ = raise PTREE "repl_metID takes no PrfObj";
1142 fun repl_result l f' s (PrfObj {cell=cell,form=form,tac=tac,loc=_,
1143 branch=branch,result = _ ,ostate = _}) =
1144 PrfObj {cell=cell,form=form,tac=tac,loc= l,
1145 branch=branch,result = f',ostate = s}
1146 | repl_result l f' s (PblObj {cell=cell,origin=origin,fmz=fmz,
1147 spec=spec,probl=probl,meth=meth,ctxt=ctxt,env=env,loc=_,
1148 branch=branch,result= _ ,ostate= _}) =
1149 PblObj {cell=cell,origin=origin,fmz=fmz,
1150 spec=spec,probl=probl,meth=meth,ctxt=ctxt,env=env,loc= l,
1151 branch=branch,result= f',ostate= s};
1153 fun repl_tac x (PrfObj {cell=cell,form=form,tac= _,loc=loc,
1154 branch=branch,result=result,ostate=ostate}) =
1155 PrfObj {cell=cell,form=form,tac= x,loc=loc,
1156 branch=branch,result=result,ostate=ostate}
1157 | repl_tac _ _ = raise PTREE "repl_tac takes no PblObj";
1159 fun repl_branch b (PblObj {cell=cell,origin=origin,fmz=fmz,
1160 spec=spec,probl=probl,meth=meth,ctxt=ctxt,env=env,loc=loc,
1161 branch= _,result=result,ostate=ostate}) =
1162 PblObj {cell=cell,origin=origin,fmz=fmz,spec=spec,probl=probl,
1163 meth=meth,ctxt=ctxt,env=env,loc=loc,branch= b,result=result,ostate=ostate}
1164 | repl_branch b (PrfObj {cell=cell,form=form,tac=tac,loc=loc,
1165 branch= _,result=result,ostate=ostate}) =
1166 PrfObj {cell=cell,form=form,tac=tac,loc=loc,
1167 branch= b,result=result,ostate=ostate};
1170 (PblObj {cell, origin, fmz, spec, probl, meth,
1171 ctxt=_, env, loc, branch, result, ostate}) =
1172 PblObj {cell=cell, origin=origin, fmz=fmz, spec=spec, probl=probl, meth=meth,
1173 ctxt=x, env=env, loc=loc, branch=branch, result=result, ostate=ostate}
1174 | repl_ctxt _ _ = raise PTREE "repl_env takes no PrfObj";
1177 (PblObj {cell=cell, origin=origin, fmz=fmz, spec=spec, probl=probl, meth=meth,
1178 ctxt=ctxt, env=_, loc=loc, branch=branch, result=result, ostate=ostate}) =
1179 PblObj {cell=cell, origin=origin, fmz=fmz, spec=spec, probl=probl, meth=meth,
1180 ctxt=ctxt, env=e, loc=loc, branch=branch, result=result, ostate=ostate}
1181 | repl_env _ _ = raise PTREE "repl_env takes no PrfObj";
1184 (PblObj {cell=cell,origin=(_,spe,hdf),fmz=fmz,
1185 spec=spec,probl=probl,meth=meth,ctxt=ctxt,env=env,loc=loc,
1186 branch=branch,result=result,ostate=ostate}) =
1187 PblObj{cell=cell,origin=(oris,spe,hdf),fmz=fmz,spec=spec,probl=probl,
1188 meth=meth,ctxt=ctxt,env=env,loc=loc,branch=branch,
1189 result=result,ostate=ostate}
1190 | repl_oris _ _ = raise PTREE "repl_oris takes no PrfObj";
1191 fun repl_orispec spe
1192 (PblObj {cell=cell,origin=(oris,_,hdf),fmz=fmz,
1193 spec=spec,probl=probl,meth=meth,ctxt=ctxt,env=env,loc=loc,
1194 branch=branch,result=result,ostate=ostate}) =
1195 PblObj{cell=cell,origin=(oris,spe,hdf),fmz=fmz,spec=spec,probl=probl,
1196 meth=meth,ctxt=ctxt,env=env,loc=loc,branch=branch,
1197 result=result,ostate=ostate}
1198 | repl_orispec _ _ = raise PTREE "repl_orispec takes no PrfObj";
1200 fun repl_loc l (PblObj {cell=cell,origin=origin,fmz=fmz,spec=spec,probl=probl,meth=meth,
1201 ctxt=ctxt,env=env,loc=_,branch=branch,result=result,ostate=ostate}) =
1202 PblObj {cell=cell,origin=origin,fmz=fmz,spec=spec,probl=probl,meth=meth,
1203 ctxt=ctxt,env=env,loc=l,branch=branch,result=result,ostate=ostate}
1204 | repl_loc l (PrfObj {cell=cell,form=form,tac=tac,
1205 loc=_,branch=branch,result=result,ostate=ostate}) =
1206 PrfObj {cell=cell,form=form,tac=tac,
1207 loc= l,branch=branch,result=result,ostate=ostate};
1209 (*WN050219 put here for interpreting code for cut_tree below...*)
1211 bool * (*ALL itms+preconds true*)
1212 pos_ * (*model belongs to Problem | Method*)
1213 term * (*header: Problem... or Cas
1214 FIXXXME.12.03: item! for marking syntaxerrors*)
1215 itm list * (*model: given, find, relate*)
1216 ((bool * term) list) *(*model: preconds*)
1217 spec; (*specification*)
1218 val e_ocalhd = (false, Und, e_term, [e_itm], [(false, e_term)], e_spec);
1222 | ModSpec of ocalhd;
1223 val e_ptform = Form e_term;
1224 val e_ptform' = ModSpec e_ocalhd;
1228 (*.applies (snd f) to the branches at a pos if ((fst f) b),
1229 f : (ppobj -> bool) * (int -> ptree list -> ptree list).*)
1231 fun appl_branch f EmptyPtree [] = (EmptyPtree, false)
1232 | appl_branch f EmptyPtree _ = raise PTREE "appl_branch f Empty _"
1233 | appl_branch f (Nd ( _, _)) [] = raise PTREE "appl_branch f _ []"
1234 | appl_branch f (Nd (b, bs)) (p::[]) =
1235 if (fst f) b then (Nd (b, (snd f) (p:posel) bs), true)
1236 else (Nd (b, bs), false)
1237 | appl_branch f (Nd (b, bs)) (p::ps) =
1238 let val (b',bool) = appl_branch f (nth p bs) ps
1239 in (Nd (b, repl_app bs p b'), bool) end;
1241 (* for cut_level; appl_branch(deprecated) *)
1242 fun test_trans (PrfObj{branch = Transitive,...}) = true
1243 | test_trans (PblObj{branch = Transitive,...}) = true
1244 | test_trans _ = false;
1246 fun is_pblobj' pt (p:pos) =
1247 let val ppobj = get_obj I pt p
1248 in is_pblobj ppobj end;
1250 fun delete_result pt (p:pos) =
1251 (appl_obj (repl_result (fst (get_obj g_loc pt p), NONE)
1252 (e_term,[]) Incomplete) pt p);
1254 fun del_res (PblObj {cell, fmz, origin, spec, probl, meth,
1255 ctxt, env, loc=(l1,_), branch, result, ostate}) =
1256 PblObj {cell=cell,fmz=fmz,origin=origin,spec=spec,probl=probl,meth=meth,
1257 ctxt=ctxt,env=env, loc=(l1,NONE), branch=branch, result=(e_term,[]),
1260 | del_res (PrfObj {cell, form, tac, loc=(l1,_), branch, result, ostate}) =
1261 PrfObj {cell=cell,form=form,tac=tac, loc=(l1,NONE), branch=branch,
1262 result=(e_term,[]), ostate=Incomplete};
1264 (*FIXME.WN0312 update_X X pos pt -> pt could be chained by o (efficiency?)*)
1265 (*fun update_fmz pt pos x = appl_obj (repl_fmz x) pt pos; WN01xx *)
1266 fun update_ctxt pt pos x = appl_obj (repl_ctxt x) pt pos; (*for use on PblObj,
1267 otherwise use fun generate1; compare fun get_ctxt*)
1268 fun update_env pt pos x = appl_obj (repl_env x) pt pos;
1269 fun update_domID pt pos x = appl_obj (repl_domID x) pt pos;
1270 fun update_pblID pt pos x = appl_obj (repl_pblID x) pt pos;
1271 fun update_metID pt pos x = appl_obj (repl_metID x) pt pos;
1272 fun update_spec pt pos x = appl_obj (repl_spec x) pt pos;
1273 fun update_pbl pt pos x = appl_obj (repl_pbl x) pt pos;
1274 fun update_pblppc pt pos x = appl_obj (repl_pbl x) pt pos;
1275 fun update_met pt pos x = appl_obj (repl_met x) pt pos;
1276 fun update_metppc pt pos x = appl_obj (repl_met x) pt pos;
1277 fun update_branch pt pos x = appl_obj (repl_branch x) pt pos;
1278 fun update_tac pt pos x = appl_obj (repl_tac x) pt pos;
1279 fun update_oris pt pos x = appl_obj (repl_oris x) pt pos;
1280 fun update_orispec pt pos x = appl_obj (repl_orispec x) pt pos;
1282 (*WN050305 for handling cut_tree in cappend_atomic + for testing*)
1283 fun update_loc' pt pos x = appl_obj (repl_loc x) pt pos;
1285 (*13.8.02: options, because istate is no equalitype any more*)
1286 fun get_loc EmptyPtree _ = (e_istate, e_ctxt)
1287 | get_loc pt (p,Res) =
1288 (case get_obj g_loc pt p of
1290 | (NONE , NONE) => (e_istate, e_ctxt)
1291 | (_ , SOME i) => i)
1292 | get_loc pt (p,_) =
1293 (case get_obj g_loc pt p of
1294 (NONE , SOME i) => i (*13.8.02 just copied from ^^^: too liberal ?*)
1295 | (NONE , NONE) => (e_istate, e_ctxt)
1296 | (SOME i, _) => i);
1297 fun get_istate pt p = get_loc pt p |> #1;
1298 fun get_ctxt pt (pos as (p, p_)) =
1299 if member op = [Frm, Res] p_
1300 then get_loc pt pos |> #2 (*for script interpretation rely on fun get_loc*)
1301 else get_obj g_ctxt pt p (*for specify phase take ctx from PblObj*)
1303 fun get_assumptions_ pt p = get_ctxt pt p |> get_assumptions;
1311 (*pos of the formula on FE relative to the current pos,
1312 which is the next writepos*)
1313 fun pre_pos ([]:pos) = []:pos
1315 let val (ps,p) = split_last pp
1316 in case p of 1 => ps | n => ps @ [n-1] end;
1318 (*WN.20.5.03 ... but not used*)
1319 fun posless [] (_::_) = true
1320 | posless (_::_) [] = false
1321 | posless (p::ps) (q::qs) = if p = q then posless ps qs else p < q;
1322 (* posless [2,3,4] [3,4,5];
1324 > posless [2,3,4] [1,2,3];
1326 > posless [2,3] [2,3,4];
1328 > posless [2,3,4] [2,3];
1330 > posless [6] [6,5,2];
1332 +++ see Isabelle/../library.ML*)
1335 (**.development for extracting an 'interval' from ptree.**)
1337 (*WN0510 version stopped in favour of get_interval with !!!move_dn, getFormulaeFromTo
1338 actually used (inefficient) version with move_dn: see modspec.sml*)
1341 fun hdp [] = 1 | hdp [0] = 1 | hdp x = hd x;(*start with first*)
1342 fun hdq [] = 99999 | hdq [0] = 99999 | hdq x = hd x;(*take until last*)
1343 fun tlp [] = [0] | tlp [_] = [0] | tlp x = tl x;
1344 fun tlq [] = [99999] | tlq [_] = [99999] | tlq x = tl x;
1346 fun getnd i (b,p) q (Nd (po, nds)) =
1347 (if i <= 0 then [[b]] else []) @
1348 (getnds (i-1) true (b@[hdp p], tlp p) (tlq q)
1349 (take_fromto (hdp p) (hdq q) nds))
1351 and getnds _ _ _ _ [] = [] (*no children*)
1352 | getnds i _ (b,p) q [nd] = (getnd i (b,p) q nd) (*l+r-margin*)
1354 | getnds i true (b,p) q [n1, n2] = (*l-margin, r-margin*)
1355 (getnd i ( b, p ) [99999] n1) @
1356 (getnd ~99999 (lev_on b,[0]) q n2)
1358 | getnds i _ (b,p) q [n1, n2] = (*intern, r-margin*)
1359 (getnd i ( b,[0]) [99999] n1) @
1360 (getnd ~99999 (lev_on b,[0]) q n2)
1362 | getnds i true (b,p) q (nd::(nds as _::_)) = (*l-margin, intern*)
1363 (getnd i ( b, p ) [99999] nd) @
1364 (getnds ~99999 false (lev_on b,[0]) q nds)
1366 | getnds i _ (b,p) q (nd::(nds as _::_)) = (*intern, ...*)
1367 (getnd i ( b,[0]) [99999] nd) @
1368 (getnds ~99999 false (lev_on b,[0]) q nds);
1370 (*get an 'interval from to' from a ptree as 'intervals f t' of respective nodes
1371 where 'from' are pos, i.e. a key as int list, 'f' an int (to,t analoguous)
1372 (1) the 'f' are given
1373 (1a) by 'from' if 'f' = the respective element of 'from' (left margin)
1374 (1b) -inifinity, if 'f' > the respective element of 'from' (internal node)
1375 (2) the 't' ar given
1376 (2a) by 'to' if 't' = the respective element of 'to' (right margin)
1377 (2b) inifinity, if 't' < the respective element of 'to (internal node)'
1378 the 'f' and 't' are set by hdp,... *)
1379 fun get_trace pt p q =
1380 (flat o (getnds ((length p) -1) true ([hdp p], tlp p) (tlq q)))
1381 (take_fromto (hdp p) (hdq q) (children pt));
1384 fun get_somespec ((dI,pI,mI):spec) ((dI',pI',mI'):spec) =
1385 let val domID = if dI = e_domID
1386 then if dI' = e_domID
1387 then error"pt_extract: no domID in probl,origin"
1390 val pblID = if pI = e_pblID
1391 then if pI' = e_pblID
1392 then error"pt_extract: no pblID in probl,origin"
1395 val metID = if mI = e_metID
1396 then if pI' = e_metID
1397 then error"pt_extract: no metID in probl,origin"
1400 in (domID, pblID, metID):spec end;
1401 fun get_somespec' ((dI,pI,mI):spec) ((dI',pI',mI'):spec) =
1402 let val domID = if dI = e_domID then dI' else dI
1403 val pblID = if pI = e_pblID then pI' else pI
1404 val metID = if mI = e_metID then mI' else mI
1405 in (domID, pblID, metID):spec end;
1407 (*extract a formula or model from ptree for itms2itemppc or model2xml*)
1408 fun preconds2str bts =
1409 (strs2str o (map (linefeed o pair2str o
1411 (apfst bool2str)))) bts;
1412 fun ocalhd2str ((b, p, hdf, itms, prec, spec):ocalhd) =
1413 "("^bool2str b^", "^pos_2str p^", "^term2str hdf^
1414 ", "^itms2str_ (thy2ctxt' "Isac") itms^
1415 ", "^preconds2str prec^", \n"^spec2str spec^" )";
1419 fun is_pblnd (Nd (ppobj, _)) = is_pblobj ppobj;
1422 (**.functions for the 'ptree iterator' as seen from the FE-Kernel interface.**)
1424 (*move one step down into existing nodes of ptree; regard TransitiveB
1425 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~##################
1426 fun move_dn _ (Nd (c, ns)) ([],p_) = (*root problem*)
1427 (* val (Nd (c, ns), ([],p_)) = (pt, get_pos cI uI);
1430 then case p_ of (*Frm => ([], Pbl) 1.12.03
1431 |*) Res => raise PTREE "move_dn: end of calculation"
1432 | _ => if null ns (*go down from Pbl + Met*)
1433 then raise PTREE "move_dn: solve problem not started"
1435 else (case p_ of Res => raise PTREE "move_dn: end of (sub-)tree"
1437 then raise PTREE "move_dn: pos not existent 1"
1440 (*iterate towards end of pos*)
1441 (* val (P,(Nd (_, ns)),(p::(ps as (_::_)),p_)) = ([]:pos, pt, get_pos cI uI);
1442 val (P,(Nd (_, ns)),(p::(ps as (_::_)),p_)) = ((P@[p]),(nth p ns),(ps, p_));
1444 | move_dn P (Nd (_, ns)) (p::(ps as (_::_)),p_) =
1445 if p > length ns then raise PTREE "move_dn: pos not existent 2"
1446 else move_dn ((P@[p]): pos) (nth p ns) (ps, p_)
1447 (* val (P, (Nd (c, ns)), ([p], p_)) = ((P@[p]), (nth p ns), (ps, p_));
1448 val (P, (Nd (c, ns)), ([p], p_)) = ([],pt,get_pos cI uI);
1450 | move_dn P (Nd (c, ns)) ([p], p_) = (*act on last element of pos*)
1451 if p > length ns then raise PTREE "move_dn: pos not existent 3"
1452 else if is_pblnd (nth p ns) then
1453 ((*tracing("### move_dn: is_pblnd (nth p ns), P= "^ints2str' P^", \n"^
1454 "length ns= "^((string_of_int o length) ns)^
1455 ", p= "^string_of_int p^", p_= "^pos_2str p_);*)
1456 case p_ of Res => if p = length ns
1457 then if g_ostate c = Complete then (P, Res)
1458 else raise PTREE (ints2str' P^" not complete")
1459 (*FIXME here handle not-sequent-branches*)
1460 else if g_branch c = TransitiveB
1461 andalso (not o is_pblnd o (nth (p+1))) ns
1463 else (P@[p+1], if is_pblnd (nth (p+1) ns)
1465 | _ => if (null o children o (nth p)) ns (*go down from Pbl*)
1466 then raise PTREE "move_dn: solve subproblem not started"
1468 if (is_pblnd o hd o children o (nth p)) ns
1471 (* val (P, Nd (c, ns), ([p], p_)) = ([], pt, ([1], Frm));
1473 else case p_ of Frm => if (null o children o (nth p)) ns
1474 (*then if g_ostate c = Complete then (P@[p],Res)*)
1475 then if g_ostate' (nth p ns) = Complete
1477 else raise PTREE "move_dn: pos not existent 4"
1478 else (P @ [p, 1], (*go down*)
1479 if (is_pblnd o hd o children o (nth p)) ns
1481 | Res => if p = length ns
1483 if g_ostate c = Complete then (P, Res)
1484 else raise PTREE (ints2str' P^" not complete")
1486 if g_branch c = TransitiveB
1487 andalso (not o is_pblnd o (nth (p+1))) ns
1488 then if (null o children o (nth (p+1))) ns
1490 else (P@[p+1,1], Frm)(*040221*)
1491 else (P@[p+1], if is_pblnd (nth (p+1) ns)
1494 (*.move one step down into existing nodes of ptree; skip Res = Frm.nxt;
1495 move_dn at the end of the calc-tree raises PTREE.*)
1496 fun move_dn _ (Nd (c, ns)) ([],p_) = (*root problem*)
1498 Res => raise PTREE "move_dn: end of calculation"
1499 | _ => if null ns (*go down from Pbl + Met*)
1500 then raise PTREE "move_dn: solve problem not started"
1502 | move_dn P (Nd (_, ns)) (p::(ps as (_::_)),p_) =(*iterate to end of pos*)
1503 if p > length ns then raise PTREE "move_dn: pos not existent 2"
1504 else move_dn ((P@[p]): pos) (nth p ns) (ps, p_)
1506 | move_dn P (Nd (c, ns)) ([p], p_) = (*act on last element of pos*)
1507 if p > length ns then raise PTREE "move_dn: pos not existent 3"
1510 if p = length ns (*last Res on this level: go a level up*)
1511 then if g_ostate c = Complete then (P, Res)
1512 else raise PTREE (ints2str' P^" not complete 1")
1513 else (*go to the next Nd on this level, or down into the next Nd*)
1514 if is_pblnd (nth (p+1) ns) then (P@[p+1], Pbl)
1516 if g_res' (nth p ns) = g_form' (nth (p+1) ns)
1517 then if (null o children o (nth (p+1))) ns
1518 then (*take the Res if Complete*)
1519 if g_ostate' (nth (p+1) ns) = Complete
1521 else raise PTREE (ints2str' (P@[p+1])^
1523 else (P@[p+1,1], Frm)(*go down into the next PrfObj*)
1524 else (P@[p+1], Frm)(*take Frm: exists if the Nd exists*)
1525 | Frm => (*go down or to the Res of this Nd*)
1526 if (null o children o (nth p)) ns
1527 then if g_ostate' (nth p ns) = Complete then (P @ [p], Res)
1528 else raise PTREE (ints2str' (P @ [p])^" not complete 3")
1529 else (P @ [p, 1], Frm)
1530 | _ => (*is Pbl or Met*)
1531 if (null o children o (nth p)) ns
1532 then raise PTREE "move_dn:solve subproblem not startd"
1534 if (is_pblnd o hd o children o (nth p)) ns
1538 (*.go one level down into ptree.*)
1539 fun movelevel_dn [] (Nd (c, ns)) ([],p_) = (*root problem*)
1542 then raise PTREE "solve problem not started"
1543 else ([1], if (is_pblnd o hd) ns then Pbl else Frm)
1544 else raise PTREE "pos not existent 1"
1546 (*iterate towards end of pos*)
1547 | movelevel_dn P (Nd (_, ns)) (p::(ps as (_::_)),p_) =
1548 if p > length ns then raise PTREE "pos not existent 2"
1549 else movelevel_dn (P@[p]) (nth p ns) (ps, p_)
1551 | movelevel_dn P (Nd (c, ns)) ([p], p_) = (*act on last element of pos*)
1552 if p > length ns then raise PTREE "pos not existent 3" else
1555 then raise PTREE "no children"
1557 if g_branch c = TransitiveB
1558 then if (null o children o (nth (p+1))) ns
1559 then raise PTREE "no children"
1561 if (is_pblnd o hd o children o (nth (p+1))) ns
1563 else if (null o children o (nth p)) ns
1564 then raise PTREE "no children"
1565 else (P @ [p, 1], if (is_pblnd o hd o children o (nth p)) ns
1567 | _ => if (null o children o (nth p)) ns
1568 then raise PTREE "no children"
1569 else (P @ [p, 1], (*go down*)
1570 if (is_pblnd o hd o children o (nth p)) ns
1575 (*.go to the previous position in ptree; regard TransitiveB.*)
1576 fun move_up _ (Nd (c, ns)) (([],p_):pos') = (*root problem*)
1578 then case p_ of Res => if null ns then ([], Pbl) (*Res -> Pbl (not Met)!*)
1579 else ([length ns], Res)
1580 | _ => raise PTREE "begin of calculation"
1581 else raise PTREE "pos not existent"
1583 | move_up P (Nd (_, ns)) (p::(ps as (_::_)),p_) = (*iterate to end of pos*)
1584 if p > length ns then raise PTREE "pos not existent"
1585 else move_up (P@[p]) (nth p ns) (ps,p_)
1587 | move_up P (Nd (c, ns)) ([p], p_) = (*act on last element of pos*)
1588 if p > length ns then raise PTREE "pos not existent"
1589 else if is_pblnd (nth p ns) then
1591 let val nc = (length o children o (nth p)) ns
1592 in if nc = 0 then (P@[p], Pbl) (*Res -> Pbl (not Met)!*)
1593 else (P @ [p, nc], Res) end (*go down*)
1594 | _ => if p = 1 then (P, Pbl) else (P@[p-1], Res)
1595 else case p_ of Frm => if p <> 1 then (P, Frm)
1596 else if is_pblobj c then (P, Pbl) else (P, Frm)
1598 let val nc = (length o children o (nth p)) ns
1599 in if nc = 0 (*cannot go down*)
1600 then if g_branch c = TransitiveB andalso p <> 1
1601 then (P@[p-1], Res) else (P@[p], Frm)
1602 else (P @ [p, nc], Res) end; (*go down*)
1606 (*.go one level up in ptree; sets the position on Frm.*)
1607 fun movelevel_up _ (Nd (c, ns)) (([],p_):pos') = (*root problem*)
1608 raise PTREE "pos not existent"
1610 (*iterate towards end of pos*)
1611 | movelevel_up P (Nd (_, ns)) (p::(ps as (_::_)),p_) =
1612 if p > length ns then raise PTREE "pos not existent"
1613 else movelevel_up (P@[p]) (nth p ns) (ps,p_)
1615 | movelevel_up P (Nd (c, ns)) ([p], p_) = (*act on last element of pos*)
1616 if p > length ns then raise PTREE "pos not existent"
1617 else if is_pblobj c then (P, Pbl) else (P, Frm);
1620 (*.go to the next calc-head up in the calc-tree.*)
1621 fun movecalchd_up pt ((p, Res):pos') =
1622 (par_pblobj pt p, Pbl):pos'
1623 | movecalchd_up pt (p, _) =
1624 if is_pblobj (get_obj I pt p)
1625 then (p, Pbl) else (par_pblobj pt p, Pbl);
1627 (*.determine the previous pos' on the same level.*)
1628 (*WN0502 made for interSteps; _only_ works for branch TransitiveB*)
1629 fun lev_pred' pt (pos:pos' as ([],Res)) = ([],Pbl):pos'
1630 | lev_pred' pt (pos:pos' as (p, Res)) =
1631 let val (p', last) = split_last p
1633 then if (is_pblobj o (get_obj I pt)) p then (p,Pbl) else (p, Frm)
1634 else if get_obj g_res pt (p' @ [last - 1]) = get_obj g_form pt p
1635 then (p' @ [last - 1], Res) (*TransitiveB*)
1636 else if (is_pblobj o (get_obj I pt)) p then (p,Pbl) else (p, Frm)
1639 (*.determine the next pos' on the same level.*)
1640 fun lev_on' pt (([],Pbl):pos') = ([],Res):pos'
1641 | lev_on' pt (p, Res) =
1642 if get_obj g_res pt p = get_obj g_form pt (lev_on p)(*TransitiveB*)
1643 then if existpt' (lev_on p, Res) pt then (lev_on p, Res)
1644 else error ("lev_on': (p, Res) -> (p, Res) not existent, \
1645 \p = "^ints2str' (lev_on p))
1646 else (lev_on p, Frm)
1647 | lev_on' pt (p, _) =
1648 if existpt' (p, Res) pt then (p, Res)
1649 else error ("lev_on': (p, Frm) -> (p, Res) not existent, \
1650 \p = "^ints2str' p);
1652 fun exist_lev_on' pt p = (lev_on' pt p; true) handle _ => false;
1654 (*.is the pos' at the last element of a calulation _AND_ can be continued.*)
1655 (* val (pt, pos as (p,p_)) = (pt, ([1],Frm));
1657 fun is_curr_endof_calc pt (([],Res) : pos') = false
1658 | is_curr_endof_calc pt (pos as (p,_)) =
1659 not (exist_lev_on' pt pos)
1660 andalso get_obj g_ostate pt (lev_up p) = Incomplete;
1663 (**.insert into ctree and cut branches accordingly.**)
1665 (*.get all positions of certain intervals on the ctree.*)
1666 (*OLD VERSION without move_dn; kept for occasional redesign
1667 get all pos's to be cut in a ptree
1668 below a pos or from a ptree list after i-th element (NO level_up).*)
1669 fun get_allpos' (_:pos, _:posel) EmptyPtree = ([]:pos' list)
1670 | get_allpos' (p, 1) (Nd (b, bs)) = (*p is pos of Nd*)
1671 if g_ostate b = Incomplete
1672 then ((*tracing("get_allpos' (p, 1) Incomplete: p="^ints2str' p);*)
1673 [(p,Frm)] @ (get_allpos's (p, 1) bs)
1675 else ((*tracing("get_allpos' (p, 1) else: p="^ints2str' p);*)
1676 [(p,Frm)] @ (get_allpos's (p, 1) bs) @ [(p,Res)]
1678 (*WN041020 here we assume what is presented on the worksheet ?!*)
1679 | get_allpos' (p, i) (Nd (b, bs)) = (*p is pos of Nd*)
1680 if length bs > 0 orelse is_pblobj b
1681 then if g_ostate b = Incomplete
1682 then [(p,Frm)] @ (get_allpos's (p, 1) bs)
1683 else [(p,Frm)] @ (get_allpos's (p, 1) bs) @ [(p,Res)]
1685 if g_ostate b = Incomplete
1688 (*WN041020 here we assume what is presented on the worksheet ?!*)
1689 and get_allpos's _ [] = []
1690 | get_allpos's (p, i) (pt::pts) = (*p is pos of parent-Nd*)
1691 (get_allpos' (p@[i], i) pt) @ (get_allpos's (p, i+1) pts);
1693 (*.get all positions of certain intervals on the ctree.*)
1694 (*NEW version WN050225*)
1698 (*before WN041019......
1699 val cut_branch = (test_trans, curry take):
1700 (ppobj -> bool) * (int -> ptree list -> ptree list);
1701 .. formlery used for ...
1702 fun cut_tree''' _ [] = EmptyPtree
1703 | cut_tree''' pt pos =
1704 let val (pt',cut) = appl_branch cut_branch pt pos
1705 in if cut andalso length pos > 1 then cut_tree''' pt' (lev_up pos)
1708 (*OLD version before WN050225*)
1709 (*WN050106 like cut_level, but deletes exactly 1 node --- for tests ONLY*)
1710 fun cut_level_'_ (_:pos' list) (_:pos) EmptyPtree (_:pos') =
1711 raise PTREE "cut_level_'_ Empty _"
1712 | cut_level_'_ _ _ (Nd ( _, _)) ([],_) = raise PTREE "cut_level_'_ _ []"
1713 | cut_level_'_ cuts P (Nd (b, bs)) (p::[],p_) =
1715 then (Nd (b, drop_nth [] (p:posel, bs)),
1718 (if p_ = Frm then [(P@[p],Res)] else ([]:pos' list)) @
1719 (*WN041020 here we assume what is presented on the worksheet ?!*)
1720 (get_allpos's (P, p+1) (drop_nth [] (p, bs))))
1722 else (Nd (b, bs), cuts)
1723 | cut_level_'_ cuts P (Nd (b, bs)) ((p::ps),p_) =
1724 let val (bs',cuts') = cut_level_'_ cuts P (nth p bs) (ps, p_)
1725 in (Nd (b, repl_app bs p bs'), cuts @ cuts') end;
1728 fun cut_level (_:pos' list) (_:pos) EmptyPtree (_:pos') =
1729 raise PTREE "cut_level EmptyPtree _"
1730 | cut_level _ _ (Nd ( _, _)) ([],_) = raise PTREE "cut_level _ []"
1732 | cut_level cuts P (Nd (b, bs)) (p::[],p_) =
1734 then (Nd (b, take (p:posel, bs)),
1736 (if p_ = Frm andalso (*#*) g_ostate b = Complete
1737 then [(P@[p],Res)] else ([]:pos' list)) @
1738 (*WN041020 here we assume what is presented on the worksheet ?!*)
1739 (get_allpos's (P, p+1) (takerest (p, bs))))
1740 else (Nd (b, bs), cuts)
1742 | cut_level cuts P (Nd (b, bs)) ((p::ps),p_) =
1743 let val (bs',cuts') = cut_level cuts P (nth p bs) (ps, p_)
1744 in (Nd (b, repl_app bs p bs'), cuts @ cuts') end;
1746 (*OLD version before WN050219, overwritten below*)
1747 fun cut_tree _ (([],_):pos') = raise PTREE "cut_tree _ ([],_)"
1748 | cut_tree pt (pos as ([p],_)) =
1749 let val (pt', cuts) = cut_level ([]:pos' list) [] pt pos
1750 in (pt', cuts @ (if get_obj g_ostate pt [] = Incomplete
1751 then [] else [([],Res)])) end
1752 | cut_tree pt (p,p_) =
1754 fun cutfn pt cuts (p,p_) =
1755 let val (pt', cuts') = cut_level [] (lev_up p) pt (p,p_)
1756 val cuts'' = if get_obj g_ostate pt (lev_up p) = Incomplete
1757 then [] else [(lev_up p, Res)]
1758 in if length cuts' > 0 andalso length p > 1
1759 then cutfn pt' (cuts @ cuts') (lev_up p, Frm(*-->(p,Res)*))
1760 else (pt',cuts @ cuts') end
1761 val (pt', cuts) = cutfn pt [] (p,p_)
1762 in (pt', cuts @ (if get_obj g_ostate pt [] = Incomplete
1763 then [] else [([], Res)])) end;
1766 (*########/ inserted from ctreeNEW.sml \#################################**)
1768 (*.get all positions in a ptree until ([],Res) or ostate=Incomplete
1770 pos' list -> : accumulated, start with []
1771 pos -> : the offset for subtrees wrt the root
1772 ptree -> : (sub)tree
1773 pos' : initialization (the last pos' before ...)
1774 -> pos' list : of positions in this (sub) tree (relative to the root)
1776 (* val (cuts, P, pt, pos) = ([], [3], get_nd pt [3], ([], Frm):pos');
1777 val (cuts, P, pt, pos) = ([], [2], get_nd pt [2], ([], Frm):pos');
1778 length (children pt);
1780 fun get_allp (cuts:pos' list) (P:pos, pos:pos') pt =
1781 (let val nxt = move_dn [] pt pos (*exn if Incomplete reached*)
1782 in if nxt <> ([],Res)
1783 then get_allp (cuts @ [nxt]) (P, nxt) pt
1784 else (map (apfst (curry op@ P)) (cuts @ [nxt])): pos' list
1785 end) handle PTREE _ => (map (apfst (curry op@ P)) cuts);
1788 (*the pts are assumed to be on the same level*)
1789 fun get_allps (cuts: pos' list) (P:pos) [] = cuts
1790 | get_allps cuts P (pt::pts) =
1791 let val below = get_allp [] (P, ([], Frm)) pt
1794 then (P, Pbl)::below
1795 else if last_elem P = 1
1796 then (P, Frm)::below
1797 else (*Trans*) below
1798 val levres = levfrm @ (if null below then [(P, Res)] else [])
1799 in get_allps (cuts @ levres) (lev_on P) pts end;
1802 (**.these 2 funs decide on how far cut_tree goes.**)
1803 (*.shall the nodes _after_ the pos to be inserted at be deleted?.*)
1804 fun test_trans (PrfObj{branch = Transitive,...}) = true
1805 | test_trans (PrfObj{branch = NoBranch,...}) = true
1806 | test_trans (PblObj{branch = Transitive,...}) = true
1807 | test_trans (PblObj{branch = NoBranch,...}) = true
1808 | test_trans _ = false;
1809 (*.shall cutting be continued on the higher level(s)?
1810 the Nd regarded will NOT be changed.*)
1811 fun cutlevup (PblObj _) = false (*for tests of LK0502*)
1812 | cutlevup _ = true;
1813 val cutlevup = test_trans;(*WN060727 after summerterm tests.LK0502 withdrawn*)
1815 (*cut_bottom new sml603..608
1816 cut the level at the bottom of the pos (used by cappend_...)
1817 and handle the parent in order to avoid extra case for root
1818 fn: ptree -> : the _whole_ ptree for cut_levup
1819 pos * posel -> : the pos after split_last
1820 ptree -> : the parent of the Nd to be cut
1822 (ptree * : the updated ptree
1823 pos' list) * : the pos's cut
1824 bool : cutting shall be continued on the higher level(s)
1826 fun cut_bottom _ (pt' as Nd (b, [])) = ((pt', []), cutlevup b)
1827 | cut_bottom (P:pos, p:posel) (Nd (b, bs)) =
1828 let (*divide level into 3 parts...*)
1829 val keep = take (p - 1, bs)
1830 val pt' as Nd (_,bs') = nth p bs
1831 (*^^^^^_here_ will be 'insert'ed by 'append_..'*)
1832 val (tail, tp) = (takerest (p, bs),
1833 if null (takerest (p, bs)) then 0 else p + 1)
1834 val (children, cuts) =
1837 (if is_pblnd pt' then [(P @ [p], Pbl)] else [])
1838 @ (get_allp [] (P @ [p], (P, Frm)) pt')
1839 @ (get_allps [] (P @ [p+1]) tail))
1840 else (keep @ [(*'insert'ed by 'append_..'*)] @ tail,
1841 get_allp [] (P @ [p], (P, Frm)) pt')
1844 then (Nd (del_res b, children),
1845 cuts @ (if g_ostate b = Incomplete then [] else [(P,Res)]))
1846 else (Nd (b, children), cuts)
1847 (*val _= tracing("####cut_bottom (P, p)="^pos2str (P @ [p])^
1848 ", Nd=.............................................")
1850 val _= tracing("####cut_bottom form='"^
1851 term2str (get_obj g_form pt'' []))
1852 val _= tracing("####cut_bottom cuts#="^string_of_int (length cuts)^
1853 ", cuts="^pos's2str cuts)*)
1854 in ((pt'', cuts:pos' list), cutlevup b) end;
1857 (*.go all levels from the bottom of 'pos' up to the root,
1858 on each level compose the children of a node and accumulate the cut Nds
1860 pos' list -> : for accumulation
1861 bool -> : cutting shall be continued on the higher level(s)
1862 ptree -> : the whole ptree for 'get_nd pt P' on each level
1863 ptree -> : the Nd from the lower level for insertion at path
1864 pos * posel -> : pos=path split for convenience
1865 ptree -> : Nd the children of are under consideration on this call
1867 ptree * pos' list : the updated parent-Nd and the pos's of the Nds cut
1869 fun cut_levup (cuts:pos' list) clevup pt pt' (P:pos, p:posel) (Nd (b, bs)) =
1870 let (*divide level into 3 parts...*)
1871 val keep = take (p - 1, bs)
1872 (*val pt' comes as argument from below*)
1873 val (tail, tp) = (takerest (p, bs),
1874 if null (takerest (p, bs)) then 0 else p + 1)
1875 val (children, cuts') =
1877 then (keep @ [pt'], get_allps [] (P @ [p+1]) tail)
1878 else (keep @ [pt'] @ tail, [])
1879 val clevup' = if clevup then cutlevup b else false
1880 (*the first Nd with false stops cutting on all levels above*)
1883 then (Nd (del_res b, children),
1884 cuts' @ (if g_ostate b = Incomplete then [] else [(P,Res)]))
1885 else (Nd (b, children), cuts')
1886 (*val _= tracing("#####cut_levup clevup= "^bool2str clevup)
1887 val _= tracing("#####cut_levup cutlevup b= "^bool2str (cutlevup b))
1888 val _= tracing("#####cut_levup (P, p)="^pos2str (P @ [p])^
1889 ", Nd=.............................................")
1891 val _= tracing("#####cut_levup form='"^
1892 term2str (get_obj g_form pt'' []))
1893 val _= tracing("#####cut_levup cuts#="^string_of_int (length cuts)^
1894 ", cuts="^pos's2str cuts)*)
1895 in if null P then (pt'', (cuts @ cuts'):pos' list)
1896 else let val (P, p) = split_last P
1897 in cut_levup (cuts @ cuts') clevup' pt pt'' (P, p) (get_nd pt P)
1901 (*.cut nodes after and below an inserted node in the ctree;
1902 the cuts range is limited by the predicate 'fun cutlevup'.*)
1903 fun cut_tree pt (pos,_) =
1904 if not (existpt pos pt)
1905 then (pt,[]) (*appending a formula never cuts anything*)
1906 else let val (P, p) = split_last pos
1907 val ((pt', cuts), clevup) = cut_bottom (P, p) (get_nd pt P)
1908 (* pt' is the updated parent of the Nd to cappend_..*)
1909 in if null P then (pt', cuts)
1910 else let val (P, p) = split_last P
1911 in cut_levup cuts clevup pt pt' (P, p) (get_nd pt P)
1915 fun append_atomic p l f r f' s pt =
1916 let (**val _= tracing("#@append_atomic: pos ="^pos2str p)**)
1917 val (iss, f) = if existpt p pt andalso get_obj g_tac pt p=Empty_Tac
1919 ((fst (get_obj g_loc pt p), SOME l),
1920 get_obj g_form pt p)
1921 else ((NONE, SOME l), f)
1922 in insert (PrfObj {cell = NONE,
1928 ostate= s}) pt p end;
1931 (*20.8.02: cappend_* FIXXXXME cut branches below cannot be decided here:
1932 detail - generate - cappend: inserted, not appended !!!
1934 cut decided in applicable_in !?!
1936 fun cappend_atomic pt p loc f r f' s =
1937 (* val (pt, p, loc, f, r, f', s) =
1938 (pt,p,l,f,Rewrite_Set_Inst (subst2subs subs',id_rls rls'),
1941 ((*tracing("##@cappend_atomic: pos ="^pos2str p);*)
1942 apfst (append_atomic p loc f r f' s) (cut_tree pt (p,Frm))
1944 (*TODO.WN050305 redesign the handling of istates*)
1945 fun cappend_atomic pt p ist_res f r f' s =
1946 if existpt p pt andalso get_obj g_tac pt p=Empty_Tac
1947 then (*after Take: transfer Frm and respective istate*)
1950 (get_loc pt (p,Frm), get_obj g_form pt p)
1951 val (pt, cs) = cut_tree pt (p,Frm)
1952 val pt = append_atomic p (e_istate, e_ctxt) f r f' s pt
1953 val pt = update_loc' pt p (SOME ist_form, SOME ist_res)
1955 else apfst (append_atomic p ist_res f r f' s) (cut_tree pt (p,Frm));
1957 (* called by Take *)
1958 fun append_form p l f pt =
1959 ((*tracing("##@append_form: pos ="^pos2str p);*)
1960 insert (PrfObj {cell = NONE,
1961 form = (*if existpt p pt
1962 andalso get_obj g_tac pt p = Empty_Tac
1963 (*distinction from 'old' (+complete!) pobjs*)
1964 then get_obj g_form pt p else*) f,
1966 loc = (SOME l, NONE),
1968 result= (e_term,[]),
1969 ostate= Incomplete}) pt p
1971 (* val (p,loc,f) = ([1], e_istate, str2term "x + 1 = 2");
1972 val (p,loc,f) = (fst p, e_istate, str2term "-1 + x = 0");
1974 fun cappend_form pt p loc f =
1975 ((*tracing("##@cappend_form: pos ="^pos2str p);*)
1976 apfst (append_form p loc f) (cut_tree pt (p,Frm))
1978 fun cappend_form pt p loc f =
1979 let (*val _= tracing("##@cappend_form: pos ="^pos2str p)
1980 val _= tracing("##@cappend_form before cut_tree: loc ="^istate2str loc)*)
1981 val (pt', cs) = cut_tree pt (p,Frm)
1982 val pt'' = append_form p loc f pt'
1983 (*val _= tracing("##@cappend_form after append: loc ="^
1984 istates2str (get_obj g_loc pt'' p))*)
1989 fun append_result pt p l f s =
1990 ((*tracing("##@append_result: pos ="^pos2str p);*)
1991 (appl_obj (repl_result (fst (get_obj g_loc pt p),
1992 SOME l) f s) pt p, [])
1996 (*WN041022 deprecated, still for kbtest/diffapp.sml, /systest/root-equ.sml*)
1997 fun append_parent p l f r b pt =
1998 let (*val _= tracing("###append_parent: pos ="^pos2str p);*)
1999 val (ll,f) = if existpt p pt andalso get_obj g_tac pt p=Empty_Tac
2000 then ((fst (get_obj g_loc pt p), SOME l),
2001 get_obj g_form pt p)
2002 else ((SOME l, NONE), f)
2009 result= (e_term,[]),
2010 ostate= Incomplete}) pt p end;
2011 fun cappend_parent pt p loc f r b =
2012 ((*tracing("###cappend_parent: pos ="^pos2str p);*)
2013 apfst (append_parent p loc f r b) (cut_tree pt (p,Und))
2017 fun append_problem [] l fmz (strs,spec,hdf) _ =
2018 ((*tracing("###append_problem: pos = []");*)
2021 origin= (strs,spec,hdf),
2024 probl = []:itm list,
2028 loc = (SOME l, NONE),
2029 branch= TransitiveB,(*FIXXXXXME.27.8.03: for equations only*)
2030 result= (e_term,[]),
2031 ostate= Incomplete},[]))
2033 | append_problem p l fmz (strs,spec,hdf) pt =
2034 ((*tracing("###append_problem: pos ="^pos2str p);*)
2037 origin= (strs,spec,hdf),
2040 probl = []:itm list,
2044 loc = (SOME l, NONE),
2045 branch= TransitiveB,
2046 result= (e_term,[]),
2047 ostate= Incomplete}) pt p
2049 fun cappend_problem _ [] loc fmz ori =
2050 ((*tracing("###cappend_problem: pos = []");*)
2051 (append_problem [] loc fmz ori EmptyPtree,[])
2053 | cappend_problem pt p loc fmz ori =
2054 ((*tracing("###cappend_problem: pos ="^pos2str p);*)
2055 apfst (append_problem p (loc:(istate * Proof.context)) fmz ori) (cut_tree pt (p,Frm))
2058 (*.get the theory explicitly specified for the rootpbl;
2059 thus use this function _after_ finishing specification.*)
2060 fun rootthy (Nd (PblObj {spec=(thyID, _, _), ...}, _)) = assoc_thy thyID
2061 | rootthy _ = error "rootthy";