intermed. ctxt ..: finished check e_ctxt
results of tests still the same: x+1=2 until Check_Postcond
scanning code suggests to reconsider storing ctxt in *Obj{loc,...}
1 (* interpreter for scripts
2 (c) Walther Neuper 2000
7 signature INTERPRETER =
9 (*type ets (list of executed tactics) see sequent.sml*)
13 | Steps of (tac_ * mout * ptree * pos' * cid * safe (* ets*)) list
14 (* | ToDo of ets 28.4.02*)
16 (*diss: next-tactic-function*)
17 val next_tac : theory' -> ptree * pos' -> metID -> scr -> ets -> tac_
18 (*diss: locate-function*)
19 val locate_gen : theory'
21 -> ptree * pos' -> scr * rls -> ets -> loc_ -> locate
23 val sel_rules : ptree -> pos' -> tac list
24 val init_form : scr -> ets -> loc_ * term option (*FIXME not up to date*)
25 val formal_args : term -> term list
27 (*shift to library ...*)
28 val inst_abs : theory' -> term -> term
29 val itms2args : metID -> itm list -> term list
30 val user_interrupt : loc_ * (tac_ * env * env * term * term * safe)
38 structure Interpreter : INTERPRETER =
42 (*.traces the leaves (ie. non-tactical nodes) of the script
44 a leaf is either a tactic or an 'exp' in 'let v = expr'
45 where 'exp' does not contain a tactic.*)
46 val trace_script = Unsynchronized.ref false;
48 type step = (*data for creating a new node in the ptree;
50 fun ass* scrstate steps =
51 ... case ass* scrstate steps of
52 Assoc (scrstate, steps) => ... ass* scrstate steps*)
53 tac_ (*transformed from associated tac*)
54 * mout (*result with indentation etc.*)
55 * ptree (*containing node created by tac_ + resp. scrstate*)
56 * pos' (*position in ptree; ptree * pos' is the proofstate*)
57 * pos' list; (*of ptree-nodes probably cut (by fst tac_)*)
58 val e_step = (Empty_Tac_, EmptyMout, EmptyPtree, e_pos',[]:pos' list):step;
60 fun rule2thm' (Thm (id, thm)) = (id, string_of_thmI thm):thm'
61 | rule2thm' r = error ("rule2thm': not defined for "^(rule2str r));
62 fun rule2rls' (Rls_ rls) = id_rls rls
63 | rule2rls' r = error ("rule2rls': not defined for "^(rule2str r));
65 (*.makes a (rule,term) list to a Step (m, mout, pt', p', cid) for solve;
66 complicated with current t in rrlsstate.*)
67 fun rts2steps steps ((pt,p),(f,f'',rss,rts),(thy',ro,er,pa)) [(r, (f', am))] =
69 val thy = assoc_thy thy'
70 val ctxt = get_ctxt pt p |> insert_assumptions am
71 val m = Rewrite' (thy', ro, er, pa, rule2thm' r, f, (f', am))
72 val is = RrlsState (f', f'', rss, rts)
73 val p = case p of (p',Frm) => p | (p',Res) => (lev_on p',Res)
74 val (p', cid, mout, pt') = generate1 thy m (is, ctxt) p pt
75 in (is, (m, mout, pt', p', cid) :: steps) end
76 | rts2steps steps ((pt,p),(f,f'',rss,rts),(thy',ro,er,pa)) ((r, (f', am))::rts') =
78 val thy = assoc_thy thy'
79 val ctxt = get_ctxt pt p |> insert_assumptions am
80 val m = Rewrite' (thy',ro,er,pa, rule2thm' r, f, (f', am))
81 val is = RrlsState (f',f'',rss,rts)
82 val p = case p of (p',Frm) => p | (p',Res) => (lev_on p',Res)
83 val (p', cid, mout, pt') = generate1 thy m (is, ctxt) p pt
84 in rts2steps ((m, mout, pt', p', cid)::steps)
85 ((pt',p'),(f',f'',rss,rts),(thy',ro,er,pa)) rts' end;
87 (*. functions for the environment stack .*)
88 fun accessenv id es = the (assoc((top es):env, id))
89 handle _ => error ("accessenv: "^(free2str id)^" not in env");
90 fun updateenv id vl (es:env stack) =
91 (push (overwrite(top es, (id, vl))) (pop es)):env stack;
92 fun pushenv id vl (es:env stack) =
93 (push (overwrite(top es, (id, vl))) es):env stack;
94 val popenv = pop:env stack -> env stack;
98 fun de_esc_underscore str =
100 | scan (s::ss) = if s = "'" then (scan ss)
102 in (implode o scan o Symbol.explode) str end;
104 > val str = "Rewrite_Set_Inst";
105 > val esc = esc_underscore str;
106 val it = "Rewrite'_Set'_Inst" : string
107 > val des = de_esc_underscore esc;
108 val des = de_esc_underscore esc;*)
110 (*go at a location in a script and fetch the contents*)
112 | go (D::p) (Abs(s,ty,t0)) = go (p:loc_) t0
113 | go (L::p) (t1 $ t2) = go p t1
114 | go (R::p) (t1 $ t2) = go p t2
115 | go l _ = error ("go: no "^(loc_2str l));
117 > val t = (term_of o the o (parse thy)) "a+b";
118 val it = Const (#,#) $ Free (#,#) $ Free ("b","RealDef.real") : term
119 > val plus_a = go [L] t;
121 > val plus = go [L,L] t;
122 > val a = go [L,R] t;
124 > val t = (term_of o the o (parse thy)) "a+b+c";
125 val t = Const (#,#) $ (# $ # $ Free #) $ Free ("c","RealDef.real") : term
126 > val pl_pl_a_b = go [L] t;
128 > val a = go [L,R,L,R] t;
129 > val b = go [L,R,R] t;
133 (* get a subterm t with test t, and record location *)
134 fun get l test (t as Const (s,T)) =
135 if test t then SOME (l,t) else NONE
136 | get l test (t as Free (s,T)) =
137 if test t then SOME (l,t) else NONE
138 | get l test (t as Bound n) =
139 if test t then SOME (l,t) else NONE
140 | get l test (t as Var (s,T)) =
141 if test t then SOME (l,t) else NONE
142 | get l test (t as Abs (s,T,body)) =
143 if test t then SOME (l:loc_,t) else get ((l@[D]):loc_) test body
144 | get l test (t as t1 $ t2) =
145 if test t then SOME (l,t)
146 else case get (l@[L]) test t1 of
147 NONE => get (l@[R]) test t2
148 | SOME (l',t') => SOME (l',t');
150 > val sss = ((term_of o the o (parse thy))
151 "Script Solve_root_equation (eq_::bool) (v_::real) (err_::bool) =\
152 \ (let e_ = Try (Rewrite square_equation_left True eq_) \
154 ______ compares head_of !!
155 > get [] (eq_str "HOL.Let") sss; [R]
156 > get [] (eq_str "Script.Try") sss; [R,L,R]
157 > get [] (eq_str "Script.Rewrite") sss; [R,L,R,R]
158 > get [] (eq_str "HOL.True") sss; [R,L,R,R,L,R]
159 > get [] (eq_str "e_") sss; [R,R]
162 fun test_negotiable t =
163 member op = (!negotiable)
164 ((strip_thy o (term_str (Thy_Info.get_theory "Script")) o head_of) t);
166 (*.get argument of first stactic in a script for init_form.*)
167 fun get_stac thy (h $ body) =
169 fun get_t y (Const ("Script.Seq",_) $ e1 $ e2) a =
170 (case get_t y e1 a of NONE => get_t y e2 a | la => la)
171 | get_t y (Const ("Script.Seq",_) $ e1 $ e2 $ a) _ =
172 (case get_t y e1 a of NONE => get_t y e2 a | la => la)
173 | get_t y (Const ("Script.Try",_) $ e) a = get_t y e a
174 | get_t y (Const ("Script.Try",_) $ e $ a) _ = get_t y e a
175 | get_t y (Const ("Script.Repeat",_) $ e) a = get_t y e a
176 | get_t y (Const ("Script.Repeat",_) $ e $ a) _ = get_t y e a
177 | get_t y (Const ("Script.Or",_) $e1 $ e2) a =
178 (case get_t y e1 a of NONE => get_t y e2 a | la => la)
179 | get_t y (Const ("Script.Or",_) $e1 $ e2 $ a) _ =
180 (case get_t y e1 a of NONE => get_t y e2 a | la => la)
181 | get_t y (Const ("Script.While",_) $ c $ e) a = get_t y e a
182 | get_t y (Const ("Script.While",_) $ c $ e $ a) _ = get_t y e a
183 | get_t y (Const ("Script.Letpar",_) $ e1 $ Abs (_,_,e2)) a =
184 (case get_t y e1 a of NONE => get_t y e2 a | la => la)
185 (*| get_t y (Const ("HOL.Let",_) $ e1 $ Abs (_,_,e2)) a =
186 (tracing("get_t: Let e1= "^(term2str e1)^", e2= "^(term2str e2));
187 case get_t y e1 a of NONE => get_t y e2 a | la => la)
188 | get_t y (Abs (_,_,e)) a = get_t y e a*)
189 | get_t y (Const ("HOL.Let",_) $ e1 $ Abs (_,_,e2)) a =
190 get_t y e1 a (*don't go deeper without evaluation !*)
191 | get_t y (Const ("If",_) $ c $ e1 $ e2) a = NONE
192 (*(case get_t y e1 a of NONE => get_t y e2 a | la => la)*)
194 | get_t y (Const ("Script.Rewrite",_) $ _ $ _ $ a) _ = SOME a
195 | get_t y (Const ("Script.Rewrite",_) $ _ $ _ ) a = SOME a
196 | get_t y (Const ("Script.Rewrite'_Inst",_) $ _ $ _ $ _ $ a) _ = SOME a
197 | get_t y (Const ("Script.Rewrite'_Inst",_) $ _ $ _ $ _ ) a = SOME a
198 | get_t y (Const ("Script.Rewrite'_Set",_) $ _ $ _ $ a) _ = SOME a
199 | get_t y (Const ("Script.Rewrite'_Set",_) $ _ $ _ ) a = SOME a
200 | get_t y (Const ("Script.Rewrite'_Set'_Inst",_) $ _ $ _ $ _ $a)_ =SOME a
201 | get_t y (Const ("Script.Rewrite'_Set'_Inst",_) $ _ $ _ $ _ ) a =SOME a
202 | get_t y (Const ("Script.Calculate",_) $ _ $ a) _ = SOME a
203 | get_t y (Const ("Script.Calculate",_) $ _ ) a = SOME a
205 | get_t y (Const ("Script.Substitute",_) $ _ $ a) _ = SOME a
206 | get_t y (Const ("Script.Substitute",_) $ _ ) a = SOME a
208 | get_t y (Const ("Script.SubProblem",_) $ _ $ _) _ = NONE
211 ((*tracing ("### get_t yac: list-expr "^(term2str x));*)
213 in get_t thy body e_term end;
215 (*FIXME: get 1st stac by next_stac [] instead of ... ?? 29.7.02*)
216 (* val Script sc = scr;
218 fun init_form thy (Script sc) env =
219 (case get_stac thy sc of
221 (*error ("init_form: no 1st stac in "^
222 (Print_Mode.setmp [] (Syntax.string_of_term (thy2ctxt thy)) sc))*)
223 | SOME stac => SOME (subst_atomic env stac))
224 | init_form _ _ _ = error "init_form: no match";
226 (* use"ME/script.sml";
232 (*the 'iteration-argument' of a stac (args not eval)*)
233 fun itr_arg _ (Const ("Script.Rewrite'_Inst",_) $ _ $ _ $ _ $ v) = v
234 | itr_arg _ (Const ("Script.Rewrite",_) $ _ $ _ $ v) = v
235 | itr_arg _ (Const ("Script.Rewrite'_Set'_Inst",_) $ _ $ _ $ _ $ v) = v
236 | itr_arg _ (Const ("Script.Rewrite'_Set",_) $ _ $ _ $ v) = v
237 | itr_arg _ (Const ("Script.Calculate",_) $ _ $ v) = v
238 | itr_arg _ (Const ("Script.Check'_elementwise",_) $ consts $ _) = consts
239 | itr_arg _ (Const ("Script.Or'_to'_List",_) $ _) = e_term
240 | itr_arg _ (Const ("Script.Tac",_) $ _) = e_term
241 | itr_arg _ (Const ("Script.SubProblem",_) $ _ $ _) = e_term
242 | itr_arg thy t = error
243 ("itr_arg not impl. for " ^
244 (Print_Mode.setmp [] (Syntax.string_of_term (thy2ctxt (assoc_thy thy))) t));
245 (* val t = (term_of o the o (parse thy))"Rewrite rroot_square_inv False e_";
246 > itr_arg "Script" t;
247 val it = Free ("e_","RealDef.real") : term
248 > val t = (term_of o the o (parse thy))"xxx";
249 > itr_arg "Script" t;
250 *** itr_arg not impl. for xxx
251 uncaught exception ERROR
252 raised at: library.ML:1114.35-1114.40*)
255 (*.get the arguments of the script out of the scripts parsetree.*)
256 fun formal_args scr = (fst o split_last o snd o strip_comb) scr;
259 [Free ("f_","RealDef.real"),Free ("v_","RealDef.real"),
260 Free ("eqs_","bool List.list")] : term list
263 (*.get the identifier of the script out of the scripts parsetree.*)
264 fun id_of_scr sc = (id_of o fst o strip_comb) sc;
266 (*WN020526: not clear, when a is available in ass_up for eva-_true*)
267 (*WN060906: in "fun handle_leaf" eg. uses "SOME M__"(from some PREVIOUS
268 curried Rewrite) for CURRENT value (which may be different from PREVIOUS);
269 thus "NONE" must be set at the end of currying (ill designed anyway)*)
270 fun upd_env_opt env (SOME a, v) = upd_env env (a,v)
271 | upd_env_opt env (NONE, v) =
272 (tracing ("*** upd_env_opt: (NONE," ^ term2str v ^ ")"); env);
274 type dsc = typ; (*<-> nam..unknow in Descript.thy*)
275 fun typ_str (Type (s,_)) = s
276 | typ_str (TFree(s,_)) = s
277 | typ_str (TVar ((s,i),_)) = s ^ (string_of_int i);
279 (*get the _result_-type of a description*)
280 fun dsc_valT (Const (_,(Type (_,[_,T])))) = (strip_thy o typ_str) T;
281 (*> val t = (term_of o the o (parse thy)) "equality";
283 val T = "bool => Tools.una" : typ
284 > val dsc = dsc_valT t;
285 val dsc = "una" : string
287 > val t = (term_of o the o (parse thy)) "fixedValues";
289 val T = "bool List.list => Tools.nam" : typ
290 > val dsc = dsc_valT t;
291 val dsc = "nam" : string*)
293 (*.from penv in itm_ make args for script depending on type of description.*)
294 (*6.5.03 TODO: push penv into script -- and drop mk_arg here || drop penv
295 9.5.03 penv postponed: penv = env for script at the moment, (*mk_arg*)*)
296 fun mk_arg thy d [] =
297 error ("mk_arg: no data for " ^
298 (Print_Mode.setmp [] (Syntax.string_of_term (thy2ctxt thy)) d))
304 r as (Const ("HOL.eq",_) $ _ $ _) => r
305 | _ => error ("mk_arg: dsc-typ 'nam' applied to non-equality "^
306 (Print_Mode.setmp [] (Syntax.string_of_term
308 | s => error ("mk_arg: not impl. for "^s))
310 | mk_arg thy d (t::ts) = (mk_arg thy d [t]) @ (mk_arg thy d ts);
313 val [t] = ts_in itm_;
320 (*.create the actual parameters (args) of script: their order
321 is given by the order in met.pat .*)
322 (*WN.5.5.03: ?: does this allow for different descriptions ???
323 ?: why not taken from formal args of script ???
324 !: FIXXXME penv: push it here in itms2args into script-evaluation*)
325 (* val (thy, mI, itms) = (thy, metID, itms);
327 fun itms2args thy mI (itms:itm list) =
328 let val mvat = max_vt itms
329 fun okv mvat (_,vats,b,_,_) = member op = vats mvat andalso b
330 val itms = filter (okv mvat) itms
331 fun test_dsc d (_,_,_,_,itm_) = (d = d_in itm_)
332 fun itm2arg itms (_,(d,_)) =
333 case find_first (test_dsc d) itms of
335 error ("itms2args: '"^term2str d^"' not in itms")
336 (*| SOME (_,_,_,_,itm_) => mk_arg thy (d_in itm_) (ts_in itm_);
337 penv postponed; presently penv holds already env for script*)
338 | SOME (_,_,_,_,itm_) => penvval_in itm_
339 fun sel_given_find (s,_) = (s = "#Given") orelse (s = "#Find")
340 val pats = (#ppc o get_met) mI
341 in (flat o (map (itm2arg itms))) pats end;
343 > val sc = ... Solve_root_equation ...
344 > val mI = ("Script","sqrt-equ-test");
345 > val PblObj{meth={ppc=itms,...},...} = get_obj I pt [];
346 > val ts = itms2args thy mI itms;
347 > map (Print_Mode.setmp [] (Syntax.string_of_term (thy2ctxt thy))) ts;
348 ["sqrt (#9 + #4 * x) = sqrt x + sqrt (#5 + x)","x","#0"] : string list
352 (*["BOOL (1+x=2)","REAL x"] --match_ags--> oris
353 --oris2fmz_vals--> ["equality (1+x=2)","boundVariable x","solutions L"]*)
354 fun oris2fmz_vals oris =
355 let fun ori2fmz_vals ((_,_,_,dsc,ts):ori) =
356 ((term2str o comp_dts') (dsc, ts), last_elem ts)
357 handle _ => error ("ori2fmz_env called with "^terms2str ts)
358 in (split_list o (map ori2fmz_vals)) oris end;
360 (*detour necessary, because generate1 delivers a string-result*)
361 fun mout2term thy (Form' (FormKF (_,_,_,_,res))) =
362 (term_of o the o (parse (assoc_thy thy))) res
363 | mout2term thy (Form' (PpcKF _)) = e_term;(*3.8.01: res of subpbl
364 at time of detection in script*)
366 (*.convert a script-tac 'stac' to a tactic 'tac'; if stac is an initac,
367 then convert to a 'tac_' (as required in appy).
368 arg pt:ptree for pushing the thy specified in rootpbl into subpbls.*)
369 fun stac2tac_ pt thy (Const ("Script.Rewrite",_) $ Free (thmID,_) $ _ $ f) =
371 val tid = (de_esc_underscore o strip_thy) thmID
372 in (Rewrite (tid, (string_of_thmI o (assoc_thm' thy)) (tid,"")), Empty_Tac_)
375 | stac2tac_ pt thy (Const ("Script.Rewrite'_Inst",_) $ sub $ Free (thmID,_) $ _ $ f) =
377 val subML = ((map isapair2pair) o isalist2list) sub
378 val subStr = subst2subs subML
379 val tid = (de_esc_underscore o strip_thy) thmID (*4.10.02 unnoetig*)
380 in (Rewrite_Inst (subStr, (tid, (string_of_thmI o (assoc_thm' thy)) (tid,""))), Empty_Tac_)
383 | stac2tac_ pt thy (Const ("Script.Rewrite'_Set",_) $ Free (rls,_) $ _ $ f) =
384 (Rewrite_Set ((de_esc_underscore o strip_thy) rls), Empty_Tac_)
386 | stac2tac_ pt thy (Const ("Script.Rewrite'_Set'_Inst",_) $ sub $ Free (rls,_) $ _ $ f) =
388 val subML = ((map isapair2pair) o isalist2list) sub;
389 val subStr = subst2subs subML;
390 in (Rewrite_Set_Inst (subStr,rls), Empty_Tac_) end
392 | stac2tac_ pt thy (Const ("Script.Calculate",_) $ Free (op_,_) $ f) =
393 (Calculate op_, Empty_Tac_)
395 | stac2tac_ pt thy (Const ("Script.Take",_) $ t) =
396 (Take (term2str t), Empty_Tac_)
398 | stac2tac_ pt thy (Const ("Script.Substitute",_) $ isasub $ arg) =
399 (Substitute ((subte2sube o isalist2list) isasub), Empty_Tac_)
401 | stac2tac_ pt thy (Const("Script.Check'_elementwise",_) $ _ $
402 (set as Const ("Collect",_) $ Abs (_,_,pred))) =
403 (Check_elementwise (Print_Mode.setmp [] (Syntax.string_of_term
404 (thy2ctxt thy)) pred), (*set*)Empty_Tac_)
406 | stac2tac_ pt thy (Const("Script.Or'_to'_List",_) $ _ ) =
407 (Or_to_List, Empty_Tac_)
409 (*12.1.01.for subproblem_equation_dummy in root-equation *)
410 | stac2tac_ pt thy (Const ("Script.Tac",_) $ Free (str,_)) =
411 (Tac ((de_esc_underscore o strip_thy) str), Empty_Tac_)
413 (*compare "| assod _ (Subproblem'"*)
414 | stac2tac_ pt thy (stac as Const ("Script.SubProblem",_) $
415 (Const ("Product_Type.Pair",_) $Free (dI',_) $
416 (Const ("Product_Type.Pair",_) $ pI' $ mI')) $ ags') =
418 val dI = ((implode o drop_last(*.."'"*) o Symbol.explode) dI')(*^""*);
419 val thy = maxthy (assoc_thy dI) (rootthy pt);
420 val pI = ((map (de_esc_underscore o free2str)) o isalist2list) pI';
421 val mI = ((map (de_esc_underscore o free2str)) o isalist2list) mI';
422 val ags = isalist2list ags';
427 val pors = (match_ags thy ((#ppc o get_pbt) pI) ags)
428 handle ERROR "actual args do not match formal args"
429 => (match_ags_msg pI stac ags(*raise exn*); [])
430 val pI' = refine_ori' pors pI;
431 in (pI', pors (*refinement over models with diff.prec only*),
432 (hd o #met o get_pbt) pI') end
433 else (pI, (match_ags thy ((#ppc o get_pbt) pI) ags)
434 handle ERROR "actual args do not match formal args"
435 => (match_ags_msg pI stac ags(*raise exn*); []), mI);
436 val (fmz_, vals) = oris2fmz_vals pors;
437 val {cas,ppc,thy,...} = get_pbt pI
438 val dI = theory2theory' thy (*.take dI from _refined_ pbl.*)
439 val dI = theory2theory' (maxthy (assoc_thy dI) (rootthy pt));
440 val ctxt = ProofContext.init_global
441 val ctxt = dI |> Thy_Info.get_theory |> ProofContext.init_global
442 |> declare_constraints' vals
445 NONE => pblterm dI pI
446 | SOME t => subst_atomic ((vars_of_pbl_' ppc) ~~~ vals) t
447 val f = subpbl (strip_thy dI) pI
448 in (Subproblem (dI, pI), Subproblem' ((dI, pI, mI), pors, hdl, fmz_, ctxt, f))
451 | stac2tac_ pt thy t = error
452 ("stac2tac_ TODO: no match for " ^
453 (Print_Mode.setmp [] (Syntax.string_of_term (thy2ctxt thy)) t));
455 fun stac2tac pt thy t = (fst o stac2tac_ pt thy) t;
457 (*test a term for being a _list_ (set ?) of constants; could be more rigorous*)
458 fun list_of_consts (Const ("List.list.Cons",_) $ _ $ _) = true
459 | list_of_consts (Const ("List.list.Nil",_)) = true
460 | list_of_consts _ = false;
461 (*val ttt = (term_of o the o (parse thy)) "[x=#1,x=#2,x=#3]";
462 > list_of_consts ttt;
464 > val ttt = (term_of o the o (parse thy)) "[]";
465 > list_of_consts ttt;
466 val it = true : bool*)
472 tac_ * (* SubProblem gets args instantiated in assod *)
473 term (* for itr_arg, result in ets *)
476 term (*for itr_arg,result in ets*)
479 (*.assod: tac_ associated with stac w.r.t. d
481 pt:ptree for pushing the thy specified in rootpbl into subpbls
483 Ass : associated: e.g. thmID in stac = thmID in m
484 +++ arg in stac = arg in m
485 AssWeak: weakly ass.:e.g. thmID in stac = thmID in m, //arg//
486 NotAss : e.g. thmID in stac/=/thmID in m (not =)
488 tac_ SubProblem with args completed from script
490 fun assod pt d (m as Rewrite_Inst' (thy',rod,rls,put,subs,(thmID,thm),f,(f',asm))) stac =
492 (Const ("Script.Rewrite'_Inst",_) $ subs_ $ Free (thmID_,idT) $b$f_) =>
496 then ((*tracing"3### assod ..Ass";*)Ass (m,f'))
497 else ((*tracing"3### assod ..AssWeak";*)AssWeak(m, f'))
498 else ((*tracing"3### assod ..NotAss";*)NotAss)
499 | (Const ("Script.Rewrite'_Set'_Inst",_) $ sub_ $ Free (rls_,_) $_$f_) =>
500 if contains_rule (Thm (thmID, refl(*dummy*))) (assoc_rls rls_)
502 if f = f_ then Ass (m,f') else AssWeak (m,f')
506 | assod pt d (m as Rewrite' (thy,rod,rls,put,(thmID,thm),f,(f',asm))) stac =
508 (t as Const ("Script.Rewrite",_) $ Free (thmID_,idT) $ b $ f_) =>
509 ((*tracing ("3### assod: stac = " ^ ter2str t);
510 tracing ("3### assod: f(m)= " ^ term2str f);*)
514 then ((*tracing"3### assod ..Ass";*)Ass (m,f'))
516 ((*tracing"### assod ..AssWeak";
517 tracing("### assod: f(m) = " ^ term2str f);
518 tracing("### assod: f(stac)= " ^ term2str f_)*)
520 else ((*tracing"3### assod ..NotAss";*)NotAss))
521 | (Const ("Script.Rewrite'_Set",_) $ Free (rls_,_) $ _ $ f_) =>
522 if contains_rule (Thm (thmID, refl(*dummy*))) (assoc_rls rls_)
524 if f = f_ then Ass (m,f') else AssWeak (m,f')
528 | assod pt d (m as Rewrite_Set_Inst' (thy',put,sub,rls,f,(f',asm)))
529 (Const ("Script.Rewrite'_Set'_Inst",_) $ sub_ $ Free (rls_,_) $ _ $ f_) =
532 if f = f_ then Ass (m,f') else AssWeak (m,f')
535 | assod pt d (m as Detail_Set_Inst' (thy',put,sub,rls,f,(f',asm)))
536 (Const ("Script.Rewrite'_Set'_Inst",_) $ sub_ $ Free (rls_,_) $ _ $ f_) =
539 if f = f_ then Ass (m,f') else AssWeak (m,f')
542 | assod pt d (m as Rewrite_Set' (thy,put,rls,f,(f',asm)))
543 (Const ("Script.Rewrite'_Set",_) $ Free (rls_,_) $ _ $ f_) =
546 if f = f_ then Ass (m,f') else AssWeak (m,f')
549 | assod pt d (m as Detail_Set' (thy,put,rls,f,(f',asm)))
550 (Const ("Script.Rewrite'_Set",_) $ Free (rls_,_) $ _ $ f_) =
553 if f = f_ then Ass (m,f') else AssWeak (m,f')
556 | assod pt d (m as Calculate' (thy',op_,f,(f',thm'))) stac =
558 (Const ("Script.Calculate",_) $ Free (op__,_) $ f_) =>
561 if f = f_ then Ass (m,f') else AssWeak (m,f')
563 | (Const ("Script.Rewrite'_Set'_Inst",_) $ sub_ $ Free(rls_,_) $_$f_) =>
564 if contains_rule (Calc (snd (assoc1 (!calclist', op_)))) (assoc_rls rls_)
566 if f = f_ then Ass (m,f') else AssWeak (m,f')
568 | (Const ("Script.Rewrite'_Set",_) $ Free (rls_, _) $ _ $ f_) =>
569 if contains_rule (Calc (snd (assoc1 (!calclist', op_)))) (assoc_rls rls_)
571 if f = f_ then Ass (m,f') else AssWeak (m,f')
575 | assod pt _ (m as Check_elementwise' (consts,_,(consts_chkd,_)))
576 (Const ("Script.Check'_elementwise",_) $ consts' $ _) =
577 ((*tracing("### assod Check'_elementwise: consts= "^(term2str consts)^
578 ", consts'= "^(term2str consts'));
579 atomty consts; atomty consts';*)
581 then ((*tracing"### assod Check'_elementwise: Ass";*) Ass (m, consts_chkd))
582 else ((*tracing"### assod Check'_elementwise: NotAss";*) NotAss))
584 | assod pt _ (m as Or_to_List' (ors, list)) (Const ("Script.Or'_to'_List",_) $ _) =
587 | assod pt _ (m as Take' term) (Const ("Script.Take",_) $ _) =
590 | assod pt _ (m as Substitute' (_, _, res)) (Const ("Script.Substitute",_) $ _ $ _) =
593 | assod pt _ (m as Tac_ (thy,f,id,f')) (Const ("Script.Tac",_) $ Free (id',_)) =
595 then Ass (m, ((term_of o the o (parse thy)) f'))
598 (*compare "| stac2tac_ thy (Const ("Script.SubProblem",_)"*)
599 | assod pt _ (Subproblem' ((domID,pblID,metID),_,_,_,_,f))
600 (stac as Const ("Script.SubProblem",_) $ (Const ("Product_Type.Pair",_) $
601 Free (dI',_) $ (Const ("Product_Type.Pair",_) $ pI' $ mI')) $ ags') =
603 val dI = ((implode o drop_last(*.."'"*) o Symbol.explode) dI')(*^""*);
604 val thy = maxthy (assoc_thy dI) (rootthy pt);
605 val pI = ((map (de_esc_underscore o free2str)) o isalist2list) pI';
606 val mI = ((map (de_esc_underscore o free2str)) o isalist2list) mI';
607 val ags = isalist2list ags';
612 val pors = (match_ags thy ((#ppc o get_pbt) pI) ags)
613 handle ERROR "actual args do not match formal args"
614 => (match_ags_msg pI stac ags(*raise exn*);[]);
615 val pI' = refine_ori' pors pI;
616 in (pI', pors (*refinement over models with diff.prec only*),
617 (hd o #met o get_pbt) pI')
619 else (pI, (match_ags thy ((#ppc o get_pbt) pI) ags)
620 handle ERROR "actual args do not match formal args"
621 => (match_ags_msg pI stac ags(*raise exn*);[]), mI);
622 val (fmz_, vals) = oris2fmz_vals pors;
623 val {cas, ppc, thy,...} = get_pbt pI
624 val dI = theory2theory' thy (*take dI from _refined_ pbl*)
625 val dI = theory2theory' (maxthy (assoc_thy dI) (rootthy pt))
626 val ctxt = dI |> Thy_Info.get_theory |> ProofContext.init_global
627 |> declare_constraints' vals
630 NONE => pblterm dI pI
631 | SOME t => subst_atomic ((vars_of_pbl_' ppc) ~~~ vals) t
632 val f = subpbl (strip_thy dI) pI
634 if domID = dI andalso pblID = pI
635 then Ass (Subproblem' ((dI, pI, mI), pors, hdl, fmz_, ctxt, f), f)
641 then tracing("@@@ the 'tac_' proposed to apply does NOT match the leaf found in the script:\n"^
642 "@@@ tac_ = "^(tac_2str m))
646 fun tac_2tac (Refine_Tacitly' (pI,_,_,_,_)) = Refine_Tacitly pI
647 | tac_2tac (Model_Problem' (pI,_,_)) = Model_Problem
648 | tac_2tac (Add_Given' (t,_)) = Add_Given t
649 | tac_2tac (Add_Find' (t,_)) = Add_Find t
650 | tac_2tac (Add_Relation' (t,_)) = Add_Relation t
652 | tac_2tac (Specify_Theory' dI) = Specify_Theory dI
653 | tac_2tac (Specify_Problem' (dI,_)) = Specify_Problem dI
654 | tac_2tac (Specify_Method' (dI,_,_)) = Specify_Method dI
656 | tac_2tac (Rewrite' (thy,rod,erls,put,(thmID,thm),f,(f',asm))) =
659 | tac_2tac (Rewrite_Inst' (thy,rod,erls,put,sub,(thmID,thm),f,(f',asm)))=
660 Rewrite_Inst (subst2subs sub,(thmID,thm))
662 | tac_2tac (Rewrite_Set' (thy,put,rls,f,(f',asm))) =
663 Rewrite_Set (id_rls rls)
665 | tac_2tac (Detail_Set' (thy,put,rls,f,(f',asm))) =
666 Detail_Set (id_rls rls)
668 | tac_2tac (Rewrite_Set_Inst' (thy,put,sub,rls,f,(f',asm))) =
669 Rewrite_Set_Inst (subst2subs sub,id_rls rls)
671 | tac_2tac (Detail_Set_Inst' (thy,put,sub,rls,f,(f',asm))) =
672 Detail_Set_Inst (subst2subs sub,id_rls rls)
674 | tac_2tac (Calculate' (thy,op_,t,(t',thm'))) = Calculate (op_)
676 | tac_2tac (Check_elementwise' (consts,pred,consts')) =
677 Check_elementwise pred
679 | tac_2tac (Or_to_List' _) = Or_to_List
680 | tac_2tac (Take' term) = Take (term2str term)
681 | tac_2tac (Substitute' (subte, t, res)) = Substitute (subte2sube subte)
683 | tac_2tac (Tac_ (_,f,id,f')) = Tac id
685 | tac_2tac (Subproblem' ((domID, pblID, _), _, _, _,_ ,_)) =
686 Subproblem (domID, pblID)
687 | tac_2tac (Check_Postcond' (pblID, _)) =
689 | tac_2tac Empty_Tac_ = Empty_Tac
692 error ("tac_2tac: not impl. for "^(tac_2str m));
697 (** decompose tac_ to a rule and to (lhs,rhs)
700 val idT = Type ("Script.ID",[]);
701 (*val tt = (term_of o the o (parse thy)) "square_equation_left::ID";
706 fun make_rule thy t =
707 let val ct = cterm_of thy (Trueprop $ t)
708 in Thm (Print_Mode.setmp [] (Syntax.string_of_term (thy2ctxt thy))
709 (term_of ct), make_thm ct) end;
711 (* val (Rewrite_Inst'(thy',rod,rls,put,subs,(thmID,thm),f,(f',asm)))=m;
713 (*decompose tac_ to a rule and to (lhs,rhs) for ets FIXME.12.03: obsolete!
714 NOTE.12.03: also used for msg 'not locatable' ?!: 'Subproblem' missing !!!
715 WN0508 only use in tac_2res, which uses only last return-value*)
716 fun rep_tac_ (Rewrite_Inst'
717 (thy',rod,rls,put,subs,(thmID,thm),f,(f',asm))) =
718 let val fT = type_of f;
719 val b = if put then HOLogic.true_const else HOLogic.false_const;
720 val sT = (type_of o fst o hd) subs;
721 val subs' = list2isalist (HOLogic.mk_prodT (sT, sT))
722 (map HOLogic.mk_prod subs);
723 val sT' = type_of subs';
724 val lhs = Const ("Script.Rewrite'_Inst",[sT',idT,(*fT*)bool,fT] ---> fT)
725 $ subs' $ Free (thmID,idT) $ b $ f;
726 in (((make_rule (assoc_thy thy')) o HOLogic.mk_eq) (lhs,f'),(lhs,f')) end
727 (*Fehlersuche 25.4.01
728 (a)----- als String zusammensetzen:
730 val it = "d_d x #4 + d_d x (x ^^^ #2 + #3 * x)" : string
732 val it = "#0 + d_d x (x ^^^ #2 + #3 * x)" : string
734 val it = [(Free ("bdv","RealDef.real"),Free ("x","RealDef.real"))] : subst
735 > val tt = (term_of o the o (parse thy))
736 "(Rewrite_Inst[(bdv,x)]diff_const False(d_d x #4 + d_d x (x ^^^ #2 + #3 * x)))=(#0 + d_d x (x ^^^ #2 + #3 * x))";
738 ML> tracing (term2str tt);
739 (Rewrite_Inst [(bdv,x)] diff_const False d_d x #4 + d_d x (x ^^^ #2 + #3 * x)) =
740 #0 + d_d x (x ^^^ #2 + #3 * x)
742 (b)----- laut rep_tac_:
743 > val ttt=HOLogic.mk_eq (lhs,f');
747 (*Fehlersuche 1-2Monate vor 4.01:*)
748 > val tt = (term_of o the o (parse thy))
749 "Rewrite_Inst[(bdv,x)]square_equation_left True(x=#1+#2)";
752 > val f = (term_of o the o (parse thy)) "x=#1+#2";
753 > val f' = (term_of o the o (parse thy)) "x=#3";
754 > val subs = [((term_of o the o (parse thy)) "bdv",
755 (term_of o the o (parse thy)) "x")];
756 > val sT = (type_of o fst o hd) subs;
757 > val subs' = list2isalist (HOLogic.mk_prodT (sT, sT))
758 (map HOLogic.mk_prod subs);
759 > val sT' = type_of subs';
760 > val lhs = Const ("Script.Rewrite'_Inst",[sT',idT,fT,fT] ---> fT)
761 $ subs' $ Free (thmID,idT) $ HOLogic.true_const $ f;
764 > rep_tac_ (Rewrite_Inst'
765 ("Script","tless_true","eval_rls",false,subs,
766 ("square_equation_left",""),f,(f',[])));
768 | rep_tac_ (Rewrite' (thy',rod,rls,put,(thmID,thm),f,(f',asm)))=
771 val b = if put then HOLogic.true_const else HOLogic.false_const;
772 val lhs = Const ("Script.Rewrite",[idT,HOLogic.boolT,fT] ---> fT)
773 $ Free (thmID,idT) $ b $ f;
774 in (((make_rule (assoc_thy thy')) o HOLogic.mk_eq) (lhs,f'),(lhs,f')) end
776 > val tt = (term_of o the o (parse thy)) (*____ ____..test*)
777 "Rewrite square_equation_left True (x=#1+#2) = (x=#3)";
779 > val f = (term_of o the o (parse thy)) "x=#1+#2";
780 > val f' = (term_of o the o (parse thy)) "x=#3";
783 ("Script","tless_true","eval_rls",false,
784 ("square_equation_left",""),f,(f',[])));
785 > val SOME ct = parse thy
786 "Rewrite square_equation_left True (x=#1+#2)";
787 > rewrite_ Script.thy tless_true eval_rls true thm ct;
788 val it = SOME ("x = #3",[]) : (cterm * cterm list) option
790 | rep_tac_ (Rewrite_Set_Inst'
791 (thy',put,subs,rls,f,(f',asm))) =
792 (e_rule, (e_term, f'))
793 (*WN050824: type error ...
794 let val fT = type_of f;
795 val sT = (type_of o fst o hd) subs;
796 val subs' = list2isalist (HOLogic.mk_prodT (sT, sT))
797 (map HOLogic.mk_prod subs);
798 val sT' = type_of subs';
799 val b = if put then HOLogic.true_const else HOLogic.false_const
800 val lhs = Const ("Script.Rewrite'_Set'_Inst",
801 [sT',idT,fT,fT] ---> fT)
802 $ subs' $ Free (id_rls rls,idT) $ b $ f;
803 in (((make_rule (assoc_thy thy')) o HOLogic.mk_eq) (lhs,f'),(lhs,f')) end*)
804 (* ... vals from Rewrite_Inst' ...
805 > rep_tac_ (Rewrite_Set_Inst'
806 ("Script",false,subs,
807 "isolate_bdv",f,(f',[])));
809 (* val (Rewrite_Set' (thy',put,rls,f,(f',asm)))=m;
811 | rep_tac_ (Rewrite_Set' (thy',put,rls,f,(f',asm)))=
812 let val fT = type_of f;
813 val b = if put then HOLogic.true_const else HOLogic.false_const;
814 val lhs = Const ("Script.Rewrite'_Set",[idT,bool,fT] ---> fT)
815 $ Free (id_rls rls,idT) $ b $ f;
816 in (((make_rule (assoc_thy thy')) o HOLogic.mk_eq) (lhs,f'),(lhs,f')) end
818 val thy = assoc_thy thy';
819 val t = HOLogic.mk_eq (lhs,f');
821 --------------------------------------------------
822 val lll = (term_of o the o (parse thy))
823 "Rewrite_Set SqRoot_simplify False (d_d x (x ^^^ #2 + #3 * x) + d_d x #4)";
825 --------------------------------------------------
826 > val f = (term_of o the o (parse thy)) "x=#1+#2";
827 > val f' = (term_of o the o (parse thy)) "x=#3";
829 rep_tac_ (Rewrite_Set'
830 ("Script",false,"SqRoot_simplify",f,(f',[])));
831 val id = "(Rewrite_Set SqRoot_simplify True x = #1 + #2) = (x = #3)" : string
832 val thm = "(Rewrite_Set SqRoot_simplify True x = #1 + #2) = (x = #3)" : thm
834 | rep_tac_ (Calculate' (thy',op_,f,(f',thm')))=
835 let val fT = type_of f;
836 val lhs = Const ("Script.Calculate",[idT,fT] ---> fT)
838 in (((make_rule (assoc_thy thy')) o HOLogic.mk_eq) (lhs,f'),(lhs,f')) end
840 > val lhs'=(term_of o the o (parse thy))"Calculate plus (#1+#2)";
841 ... test-root-equ.sml: calculate ...
842 > val Appl m'=applicable_in p pt (Calculate "PLUS");
843 > val (lhs,_)=tac_2etac m';
845 val it = true : bool*)
846 | rep_tac_ (Check_elementwise' (t,str,(t',asm))) = (Erule, (e_term, t'))
847 | rep_tac_ (Subproblem' (_, _, _, _, _, t')) = (Erule, (e_term, t'))
848 | rep_tac_ (Take' (t')) = (Erule, (e_term, t'))
849 | rep_tac_ (Substitute' (subst,t,t')) = (Erule, (t, t'))
850 | rep_tac_ (Or_to_List' (t, t')) = (Erule, (t, t'))
851 | rep_tac_ m = error ("rep_tac_: not impl.for "^
855 fun tac_2rule m = (fst o rep_tac_) m;
856 fun tac_2etac m = (snd o rep_tac_) m;
857 fun tac_2tac m = (fst o snd o rep_tac_) m;*)
858 fun tac_2res m = (snd o snd o rep_tac_) m;(*ONLYuse of rep_tac_
859 FIXXXXME: simplify rep_tac_*)
862 (* handle a leaf at the end of recursive descent:
863 a leaf is either a tactic or an 'exp' in 'let v = expr'
864 where 'exp' does not contain a tactic.
865 handling a leaf comprises
866 (1) 'subst_stacexpr' substitute env and complete curried tactic
867 (2) rewrite the leaf by 'srls'
869 fun handle_leaf call thy srls E a v t =
870 (*WN050916 'upd_env_opt' is a blind copy from previous version*)
871 case subst_stacexpr E a v t of
872 (a', STac stac) => (*script-tactic*)
874 eval_listexpr_ (assoc_thy thy) srls (subst_atomic (upd_env_opt E (a,v)) stac)
877 then tracing ("@@@ "^call^" leaf '"^term2str t^"' ---> STac '"^term2str stac'^"'")
881 | (a', Expr lexpr) => (*leaf-expression*)
883 eval_listexpr_ (assoc_thy thy) srls (subst_atomic (upd_env_opt E (a,v)) lexpr)
886 then tracing("@@@ "^call^" leaf '"^term2str t^"' ---> Expr '"^term2str lexpr'^"'")
892 (** locate an applicable stactic in a script **)
894 datatype assoc = (*ExprVal in the sense of denotational semantics*)
895 Assoc of (*the stac is associated, strongly or weakly*)
896 scrstate * (*the current; returned for next_tac etc. outside ass* *)
897 (step list) (*list of steps done until associated stac found;
898 initiated with the data for doing the 1st step,
899 thus the head holds these data further on,
900 while the tail holds steps finished (incl.scrstate in ptree)*)
901 | NasApp of (*stac not associated, but applicable, ptree-node generated*)
902 scrstate * (step list)
903 | NasNap of (*stac not associated, not applicable, nothing generated;
904 for distinction in Or, for leaving iterations, leaving Seq,
905 evaluate scriptexpressions*)
907 fun assoc2str (Assoc _) = "Assoc"
908 | assoc2str (NasNap _) = "NasNap"
909 | assoc2str (NasApp _) = "NasApp";
912 datatype asap = (*arg. of assy _only_ for distinction w.r.t. Or*)
913 Aundef (*undefined: set only by (topmost) Or*)
914 | AssOnly (*do not execute appl stacs - there could be an associated
915 in parallel Or-branch*)
916 | AssGen; (*no Ass(Weak) found within Or, thus
917 search for _applicable_ stacs, execute and generate pt*)
918 (*this constructions doesnt allow arbitrary nesting of Or !!!*)
921 (*assy, ass_up, astep_up scanning for locate_gen at stactic in a script.
922 search is clearly separated into (1)-(2):
923 (1) assy is recursive descent;
924 (2) ass_up resumes interpretation at a location somewhere in the script;
925 astep_up does only get to the parentnode of the scriptexpr.
927 * call of (2) means _always_ that in this branch below
928 there was an appl.stac (Repeat, Or e1, ...) found by the previous step.
930 fun assy ya (is as (E,l,a,v,S,b),ss) (Const ("HOL.Let",_) $ e $ (Abs (id,T,body))) =
931 (case assy ya ((E , l@[L,R], a,v,S,b),ss) e of
932 NasApp ((E',l,a,v,S,bb),ss) =>
934 val id' = mk_Free (id, T);
935 val E' = upd_env E' (id', v);
936 in assy ya ((E', l@[R,D], a,v,S,b),ss) body end
939 val id' = mk_Free (id, T);
940 val E' = upd_env E (id', v);
941 in assy ya ((E', l@[R,D], a,v,S,b),ss) body end
944 | assy (ya as (((thy,srls),_),_)) ((E,l,_,v,S,b),ss) (Const ("Script.While",_) $ c $ e $ a) =
945 (if eval_true_ thy srls (subst_atomic (upd_env E (a,v)) c)
946 then assy ya ((E, l@[L,R], SOME a,v,S,b),ss) e
948 | assy (ya as (((thy,srls),_),_)) ((E,l,a,v,S,b),ss) (Const ("Script.While",_) $ c $ e) =
949 (if eval_true_ thy srls (subst_atomic (upd_env_opt E (a,v)) c)
950 then assy ya ((E, l@[R], a,v,S,b),ss) e
953 | assy (ya as (((thy,srls),_),_)) ((E,l,a,v,S,b),ss) (Const ("If",_) $ c $ e1 $ e2) =
954 (if eval_true_ thy srls (subst_atomic (upd_env_opt E (a,v)) c)
955 then assy ya ((E, l@[L,R], a,v,S,b),ss) e1
956 else assy ya ((E, l@[ R], a,v,S,b),ss) e2)
958 | assy ya ((E,l,_,v,S,b),ss) (Const ("Script.Try",_) $ e $ a) =
959 (case assy ya ((E, l@[L,R], SOME a,v,S,b),ss) e of
961 | assy ya ((E,l,a,v,S,b),ss) (Const ("Script.Try",_) $ e) =
962 (case assy ya ((E, l@[R], a,v,S,b),ss) e of
965 | assy ya ((E,l,_,v,S,b),ss) (Const ("Script.Seq",_) $e1 $ e2 $ a) =
966 (case assy ya ((E, l@[L,L,R], SOME a,v,S,b),ss) e1 of
967 NasNap (v, E) => assy ya ((E, l@[L,R], SOME a,v,S,b),ss) e2
968 | NasApp ((E,_,_,v,_,_),ss) => assy ya ((E, l@[L,R], SOME a,v,S,b),ss) e2
970 | assy ya ((E,l,a,v,S,b),ss) (Const ("Script.Seq",_) $e1 $ e2) =
971 (case assy ya ((E, l@[L,R], a,v,S,b),ss) e1 of
972 NasNap (v, E) => assy ya ((E, l@[R], a,v,S,b),ss) e2
973 | NasApp ((E,_,_,v,_,_),ss) => assy ya ((E, l@[R], a,v,S,b),ss) e2
976 | assy ya ((E,l,_,v,S,b),ss) (Const ("Script.Repeat",_) $ e $ a) =
977 assy ya ((E,(l@[L,R]),SOME a,v,S,b),ss) e
978 | assy ya ((E,l,a,v,S,b),ss) (Const ("Script.Repeat",_) $ e) =
979 assy ya ((E,(l@[R]),a,v,S,b),ss) e
981 | assy (y, Aundef) ((E,l,_,v,S,b),ss) (Const ("Script.Or",_) $e1 $ e2 $ a) =
982 (case assy (y, AssOnly) ((E,(l@[L,L,R]),SOME a,v,S,b),ss) e1 of
984 (case assy (y, AssOnly) ((E,(l@[L,R]),SOME a,v,S,b),ss) e2 of
986 (case assy (y, AssGen) ((E,(l@[L,L,R]),SOME a,v,S,b),ss) e1 of
988 assy (y, AssGen) ((E, (l@[L,R]), SOME a,v,S,b),ss) e2
991 | NasApp _ => error ("assy: FIXXXME ///must not return NasApp///")
993 | assy ya ((E,l,a,v,S,b),ss) (Const ("Script.Or",_) $e1 $ e2) =
994 (case assy ya ((E,(l@[L,R]),a,v,S,b),ss) e1 of
995 NasNap (v, E) => assy ya ((E,(l@[R]),a,v,S,b),ss) e2
998 | assy (((thy',sr),d),ap) (is as (E,l,a,v,S,b), (m,_,pt,(p,p_),c)::ss) t =
999 (case handle_leaf "locate" thy' sr E a v t of
1001 (NasNap (eval_listexpr_ (assoc_thy thy') sr
1002 (subst_atomic (upd_env_opt E (a',v)) t), E))
1003 | (a', STac stac) =>
1005 val ctxt = get_ctxt pt (p,p_)
1009 | _ => error ("assy: call by " ^ pos'2str (p,p_));
1011 case assod pt d m stac of
1013 let val (p'',c',f',pt') =
1014 generate1 (assoc_thy thy') m (ScrState (E,l,a',v',S,true), ctxt) (p',p_) pt;
1015 in Assoc ((E,l,a',v',S,true), (m,f',pt',p'',c @ c')::ss) end
1017 let val (p'',c',f',pt') =
1018 generate1 (assoc_thy thy') m (ScrState (E,l,a',v',S,false), ctxt) (p',p_) pt;
1019 in Assoc ((E,l,a',v',S,false), (m,f',pt',p'',c @ c')::ss) end
1021 (case ap of (*switch for Or: 1st AssOnly, 2nd AssGen*)
1022 AssOnly => (NasNap (v, E))
1024 (case applicable_in (p,p_) pt (stac2tac pt (assoc_thy thy') stac) of
1027 val is = (E,l,a',tac_2res m',S,false(*FIXXXME.WN0?*))
1028 val (p'',c',f',pt') =
1029 generate1 (assoc_thy thy') m' (ScrState is, ctxt) (p',p_) pt;
1030 in NasApp (is,(m,f',pt',p'',c @ c')::ss) end
1031 | Notappl _ => (NasNap (v, E))
1036 fun ass_up (ys as (y,s,Script sc,d)) (is as (E,l,a,v,S,b),ss)
1037 (Const ("HOL.Let",_) $ _) =
1038 let (*val _= tracing("### ass_up1 Let$e: is=")
1039 val _= tracing(istate2str (ScrState is))*)
1040 val l = drop_last l; (*comes from e, goes to Abs*)
1041 val (Const ("HOL.Let",_) $ e $ (Abs (i,T,body))) = go l sc;
1042 val i = mk_Free (i, T);
1043 val E = upd_env E (i, v);
1044 (*val _=tracing("### ass_up2 Let$e: E="^(subst2str E));*)
1045 in case assy (((y,s),d),Aundef) ((E, l@[R,D], a,v,S,b),ss) body of
1046 Assoc iss => Assoc iss
1047 | NasApp iss => astep_up ys iss
1048 | NasNap (v, E) => astep_up ys ((E,l,a,v,S,b),ss) end
1050 | ass_up ys (iss as (is,_)) (Abs (_,_,_)) =
1051 ((*tracing("### ass_up Abs: is=");
1052 tracing(istate2str (ScrState is));*)
1053 astep_up ys iss) (*TODO 5.9.00: env ?*)
1055 | ass_up ys (iss as (is,_)) (Const ("HOL.Let",_) $ e $ (Abs (i,T,b)))=
1056 ((*tracing("### ass_up Let $ e $ Abs: is=");
1057 tracing(istate2str (ScrState is));*)
1058 astep_up ys iss) (*TODO 5.9.00: env ?*)
1060 (* val (ysa, iss, (Const ("Script.Seq",_) $ _ $ _ $ _)) =
1061 (ys, ((E,up,a,v,S,b),ss), (go up sc));
1063 | ass_up ysa iss (Const ("Script.Seq",_) $ _ $ _ $ _) =
1064 astep_up ysa iss (*all has been done in (*2*) below*)
1066 | ass_up ysa iss (Const ("Script.Seq",_) $ _ $ _) =
1067 (* val (ysa, iss, (Const ("Script.Seq",_) $ _ $ _)) =
1068 (ys, ((E,up,a,v,S,b),ss), (go up sc));
1070 astep_up ysa iss (*2*: comes from e2*)
1072 | ass_up (ysa as (y,s,Script sc,d)) (is as (E,l,a,v,S,b),ss)
1073 (Const ("Script.Seq",_) $ _ ) = (*2*: comes from e1, goes to e2*)
1074 (* val ((ysa as (y,s,Script sc,d)), (is as (E,l,a,v,S,b),ss),
1075 (Const ("Script.Seq",_) $ _ )) =
1076 (ys, ((E,up,a,v,S,b),ss), (go up sc));
1078 let val up = drop_last l;
1079 val Const ("Script.Seq",_) $ _ $ e2 = go up sc
1080 (*val _= tracing("### ass_up Seq$e: is=")
1081 val _= tracing(istate2str (ScrState is))*)
1082 in case assy (((y,s),d),Aundef) ((E, up@[R], a,v,S,b),ss) e2 of
1083 NasNap (v,E) => astep_up ysa ((E,up,a,v,S,b),ss)
1084 | NasApp iss => astep_up ysa iss
1087 (* val (ysa, iss, (Const ("Script.Try",_) $ e $ _)) =
1088 (ys, ((E,up,a,v,S,b),ss), (go up sc));
1090 | ass_up ysa iss (Const ("Script.Try",_) $ e $ _) =
1093 (* val (ysa, iss, (Const ("Script.Try",_) $ e)) =
1094 (ys, ((E,up,a,v,S,b),ss), (go up sc));
1096 | ass_up ysa iss (Const ("Script.Try",_) $ e) =
1097 ((*tracing("### ass_up Try $ e");*)
1100 | ass_up (ys as (y,s,_,d)) ((E,l,_,v,S,b),ss)
1101 (*(Const ("Script.While",_) $ c $ e $ a) = WN050930 blind fix*)
1102 (t as Const ("Script.While",_) $ c $ e $ a) =
1103 ((*tracing("### ass_up: While c= "^
1104 (term2str (subst_atomic (upd_env E (a,v)) c)));*)
1105 if eval_true_ y s (subst_atomic (upd_env E (a,v)) c)
1106 then (case assy (((y,s),d),Aundef) ((E, l@[L,R], SOME a,v,S,b),ss) e of
1107 NasNap (v,E') => astep_up ys ((E',l, SOME a,v,S,b),ss)
1108 | NasApp ((E',l,a,v,S,b),ss) =>
1109 ass_up ys ((E',l,a,v,S,b),ss) t (*WN050930 't' was not assigned*)
1111 else astep_up ys ((E,l, SOME a,v,S,b),ss)
1114 | ass_up (ys as (y,s,_,d)) ((E,l,a,v,S,b),ss)
1115 (*(Const ("Script.While",_) $ c $ e) = WN050930 blind fix*)
1116 (t as Const ("Script.While",_) $ c $ e) =
1117 if eval_true_ y s (subst_atomic (upd_env_opt E (a,v)) c)
1118 then (case assy (((y,s),d),Aundef) ((E, l@[R], a,v,S,b),ss) e of
1119 NasNap (v,E') => astep_up ys ((E',l, a,v,S,b),ss)
1120 | NasApp ((E',l,a,v,S,b),ss) =>
1121 ass_up ys ((E',l,a,v,S,b),ss) t (*WN050930 't' was not assigned*)
1123 else astep_up ys ((E,l, a,v,S,b),ss)
1125 | ass_up y iss (Const ("If",_) $ _ $ _ $ _) = astep_up y iss
1127 | ass_up (ys as (y,s,_,d)) ((E,l,_,v,S,b),ss)
1128 (t as Const ("Script.Repeat",_) $ e $ a) =
1129 (case assy (((y,s),d), Aundef) ((E, (l@[L,R]), SOME a,v,S,b),ss) e of
1130 NasNap (v,E') => astep_up ys ((E',l, SOME a,v,S,b),ss)
1131 | NasApp ((E',l,a,v,S,b),ss) =>
1132 ass_up ys ((E',l,a,v,S,b),ss) t
1135 | ass_up (ys as (y,s,_,d)) (is as ((E,l,a,v,S,b),ss))
1136 (t as Const ("Script.Repeat",_) $ e) =
1137 (case assy (((y,s),d), Aundef) ((E, (l@[R]), a,v,S,b),ss) e of
1138 NasNap (v', E') => astep_up ys ((E',l,a,v',S,b),ss)
1139 | NasApp ((E',l,a,v',S,bb),ss) =>
1140 ass_up ys ((E',l,a,v',S,b),ss) t
1143 | ass_up y iss (Const ("Script.Or",_) $ _ $ _ $ _) = astep_up y iss
1145 | ass_up y iss (Const ("Script.Or",_) $ _ $ _) = astep_up y iss
1147 | ass_up y ((E,l,a,v,S,b),ss) (Const ("Script.Or",_) $ _ ) =
1148 astep_up y ((E, (drop_last l), a,v,S,b),ss)
1151 error ("ass_up not impl for t= "^(term2str t))
1153 val (ys as (_,_,Script sc,_), ss) =
1154 ((thy',srls,scr,d), [(m,EmptyMout,pt,p,[])]:step list);
1155 astep_up ys ((E,l,a,v,S,b),ss);
1156 val ((ys as (_,_,Script sc,_)), ((E,l,a,v,S,b),ss)) =
1158 val ((ys as (_,_,Script sc,_)), ((E,l,a,v,S,b),ss)) =
1159 ((thy',srls,scr,d), ((E,l,a,v,S,b), [(m,EmptyMout,pt,p,[])]));
1161 and astep_up (ys as (_,_,Script sc,_)) ((E,l,a,v,S,b),ss) =
1164 let val up = drop_last l;
1165 (*val _= tracing("### astep_up: E= "^env2str E);*)
1166 in ass_up ys ((E,up,a,v,S,b),ss) (go up sc) end
1167 else (NasNap (v, E))
1174 (* use"ME/script.sml";
1176 term2str (go up sc);
1180 (*check if there are tacs for rewriting only*)
1181 fun rew_only ([]:step list) = true
1182 | rew_only (((Rewrite' _ ,_,_,_,_))::ss) = rew_only ss
1183 | rew_only (((Rewrite_Inst' _ ,_,_,_,_))::ss) = rew_only ss
1184 | rew_only (((Rewrite_Set' _ ,_,_,_,_))::ss) = rew_only ss
1185 | rew_only (((Rewrite_Set_Inst' _ ,_,_,_,_))::ss) = rew_only ss
1186 | rew_only (((Calculate' _ ,_,_,_,_))::ss) = rew_only ss
1187 | rew_only (((Begin_Trans' _ ,_,_,_,_))::ss) = rew_only ss
1188 | rew_only (((End_Trans' _ ,_,_,_,_))::ss) = rew_only ss
1189 | rew_only _ = false;
1193 Steps of istate (*producing hd of step list (which was latest)
1194 for next_tac, for reporting Safe|Unsafe to DG*)
1195 * step (*(scrstate producing this step is in ptree !)*)
1196 list (*locate_gen may produce intermediate steps*)
1197 | NotLocatable; (*no (m Ass m') or (m AssWeak m') found*)
1201 (* locate_gen tries to locate an input tac m in the script.
1202 pursuing this goal the script is executed until an (m' equiv m) is found,
1203 or the end of the script
1205 m : input by the user, already checked by applicable_in,
1206 (to be searched within Or; and _not_ an m doing the step on ptree !)
1207 p,pt: (incl ets) at the time of input
1209 d : canonical simplifier for locating Take, Substitute, Subproblems etc.
1210 ets : ets at the time of input
1211 l : the location (in scr) of the stac which generated the current formula
1213 Steps: pt,p (incl. ets) with m done
1214 pos' list of proofobjs cut (from generate)
1215 safe: implied from last proofobj
1217 ///ToDo : ets contains a list of tacs to be done before m can be done
1218 NOT IMPL. -- "error: do other step before"
1219 NotLocatable: thus generate_hard
1221 (* val (Rewrite'(_,ro,er,pa,(id,str),f,_), p, Rfuns {locate_rule=lo,...},
1222 RrlsState (_,f'',rss,rts)) = (m, (p,p_), sc, is);
1224 fun locate_gen (thy',_) (Rewrite'(_,ro,er,pa,(id,str),f,_)) (pt,p)
1225 (Rfuns {locate_rule=lo,...}, d) (RrlsState (_,f'',rss,rts), ctxt) =
1226 (case lo rss f (Thm (id, mk_thm (assoc_thy thy') str)) of
1229 Steps (rts2steps [] ((pt,p),(f,f'',rss,rts),(thy',ro,er,pa)) rts'))
1231 | locate_gen (ts as (thy',srls)) (m:tac_) ((pt,p):ptree * pos')
1232 (scr as Script (h $ body),d) (ScrState (E,l,a,v,S,b), ctxt) =
1233 let (*val _= tracing("### locate_gen-----------------: is=");
1234 val _= tracing( istate2str (ScrState (E,l,a,v,S,b)));
1235 val _= tracing("### locate_gen: l= "^loc_2str l^", p= "^pos'2str p)*)
1236 val thy = assoc_thy thy';
1237 in case if l=[] orelse ((*init.in solve..Apply_Method...*)
1238 (last_elem o fst) p = 0 andalso snd p = Res)
1239 then (assy ((ts,d),Aundef) ((E,[R],a,v,S,b),
1240 [(m,EmptyMout,pt,p,[])]) body)
1241 (* val Assoc (iss as (is as (_,_,_,_,_,bb), ss as ((m',f',pt',p',c')::_))) =
1242 (astep_up (thy',srls,scr,d) ((E,l,a,v,S,b),[(m,EmptyMout,pt,p,[])]));
1243 (assy ((ts,d),Aundef) ((E,[R],a,v,S,b),[(m,EmptyMout,pt,p,[])]) body);
1245 else (astep_up (thy',srls,scr,d) ((E,l,a,v,S,b),
1246 [(m,EmptyMout,pt,p,[])]) ) of
1247 Assoc (iss as (is as (_,_,_,_,_,bb), ss as ((m',f',pt',p',c')::_))) =>
1248 (* val Assoc (iss as (is as (_,_,_,_,_,bb), ss as ((m',f',pt',p',c')::_))) =
1249 (astep_up (thy',srls,scr,d) ((E,l,a,v,S,b),
1250 [(m,EmptyMout,pt,p,[])]) );
1252 ((*tracing("### locate_gen Assoc: p'="^(pos'2str p'));*)
1253 if bb then Steps (ScrState is, ss)
1254 else if rew_only ss (*andalso 'not bb'= associated weakly*)
1255 then let val (po,p_) = p
1256 val po' = case p_ of Frm => po | Res => lev_on po
1257 (*WN.12.03: noticed, that pos is also updated in assy !?!
1258 instead take p' from Assoc ?????????????????????????????*)
1259 val (p'',c'',f'',pt'') =
1260 generate1 thy m (ScrState is, ctxt) (po',p_) pt;
1261 (*val _=tracing("### locate_gen, aft g1: p''="^(pos'2str p''));*)
1262 (*drop the intermediate steps !*)
1263 in Steps (ScrState is, [(m, f'',pt'',p'',c'')]) end
1264 else Steps (ScrState is, ss))
1266 | NasApp _ (*[((E,l,a,v,S,bb),(m',f',pt',p',c'))] =>
1267 error ("locate_gen: should not have got NasApp, ets =")*)
1270 if l=[] then NotLocatable
1271 else (*scan from begin of script for rew_only*)
1272 (case assy ((ts,d),Aundef) ((E,[R],a,v,Unsafe,b),
1273 [(m,EmptyMout,pt,p,[])]) body of
1274 Assoc (iss as (is as (_,_,_,_,_,bb),
1275 ss as ((m',f',pt',p',c')::_))) =>
1276 ((*tracing"4### locate_gen Assoc after Fini";*)
1278 then let val(p'',c'',f'',pt'') =
1279 generate1 thy m (ScrState is, ctxt) p' pt;
1280 (*drop the intermediate steps !*)
1281 in Steps (ScrState is, [(m, f'',pt'',p'',c'')]) end
1283 | _ => ((*tracing ("#### locate_gen: after Fini");*)
1286 | locate_gen _ m _ (sc,_) (is, _) =
1287 error ("locate_gen: wrong arguments,\n tac= "^(tac_2str m)^
1288 ",\n scr= "^(scr2str sc)^",\n istate= "^(istate2str is));
1292 (** find the next stactic in a script **)
1294 datatype appy = (*ExprVal in the sense of denotational semantics*)
1295 Appy of (*applicable stac found, search stalled*)
1296 tac_ * (*tac_ associated (fun assod) with stac*)
1297 scrstate (*after determination of stac WN.18.8.03*)
1298 | Napp of (*stac found was not applicable;
1299 this mode may become Skip in Repeat, Try and Or*)
1300 env (*stack*) (*popped while nxt_up*)
1301 | Skip of (*for restart after Appy, for leaving iterations,
1302 for passing the value of scriptexpressions,
1303 and for finishing the script successfully*)
1304 term * env (*stack*);
1306 (*appy, nxt_up, nstep_up scanning for next_tac.
1307 search is clearly separated into (1)-(2):
1308 (1) appy is recursive descent;
1309 (2) nxt_up resumes interpretation at a location somewhere in the script;
1310 nstep_up does only get to the parentnode of the scriptexpr.
1312 * call of (2) means _always_ that in this branch below
1313 there was an applicable stac (Repeat, Or e1, ...)
1317 datatype appy_ = (*as argument in nxt_up, nstep_up, from appy*)
1318 (* Appy is only (final) returnvalue, not argument during search
1319 |*) Napp_ (*ev. detects 'script is not appropriate for this example'*)
1320 | Skip_; (*detects 'script successfully finished'
1321 also used as init-value for resuming; this works,
1322 because 'nxt_up Or e1' treats as Appy*)
1324 fun appy thy ptp E l
1325 (t as Const ("HOL.Let",_) $ e $ (Abs (i,T,b))) a v =
1326 (* val (thy, ptp, E, l, t as Const ("HOL.Let",_) $ e $ (Abs (i,T,b)),a, v)=
1327 (thy, ptp, E, up@[R,D], body, a, v);
1328 appy thy ptp E l t a v;
1330 ((*tracing("### appy Let$e$Abs: is=");
1331 tracing(istate2str (ScrState (E,l,a,v,Sundef,false)));*)
1332 case appy thy ptp E (l@[L,R]) e a v of
1334 let (*val _= tracing("### appy Let "^(term2str t));
1335 val _= tracing("### appy Let: Skip res ="^(term2str res));*)
1336 (*val (i',b') = variant_abs (i,T,b); WN.15.5.03
1337 val i = mk_Free(i',T); WN.15.5.03 *)
1338 val E' = upd_env E (Free (i,T), res);
1339 in appy thy ptp E' (l@[R,D]) b a v end
1342 | appy (thy as (th,sr)) ptp E l
1343 (t as Const ("Script.While"(*1*),_) $ c $ e $ a) _ v = (*ohne n. 28.9.00*)
1344 ((*tracing("### appy While $ c $ e $ a, upd_env= "^
1345 (subst2str (upd_env E (a,v))));*)
1346 if eval_true_ th sr (subst_atomic (upd_env E (a,v)) c)
1347 then appy thy ptp E (l@[L,R]) e (SOME a) v
1350 | appy (thy as (th,sr)) ptp E l
1351 (t as Const ("Script.While"(*2*),_) $ c $ e) a v =(*ohne nachdenken 28.9.00*)
1352 ((*tracing("### appy While $ c $ e, upd_env= "^
1353 (subst2str (upd_env_opt E (a,v))));*)
1354 if eval_true_ th sr (subst_atomic (upd_env_opt E (a,v)) c)
1355 then appy thy ptp E (l@[R]) e a v
1358 | appy (thy as (th,sr)) ptp E l (t as Const ("If",_) $ c $ e1 $ e2) a v =
1359 ((*tracing("### appy If: t= "^(term2str t));
1360 tracing("### appy If: c= "^(term2str(subst_atomic(upd_env_opt E(a,v))c)));
1361 tracing("### appy If: thy= "^(fst thy));*)
1362 if eval_true_ th sr (subst_atomic (upd_env_opt E (a,v)) c)
1363 then ((*tracing("### appy If: true");*)appy thy ptp E (l@[L,R]) e1 a v)
1364 else ((*tracing("### appy If: false");*)appy thy ptp E (l@[ R]) e2 a v))
1365 (* val (thy, ptp, E, l, (Const ("Script.Repeat",_) $ e $ a), _, v) =
1366 (thy, ptp, E, (l@[R]), e, a, v);
1368 | appy thy ptp E (*env*) l
1369 (Const ("Script.Repeat"(*1*),_) $ e $ a) _ v =
1370 ((*tracing("### appy Repeat a: ");*)
1371 appy thy ptp E (*env*) (l@[L,R]) e (SOME a) v)
1372 (* val (thy, ptp, E, l, (Const ("Script.Repeat",_) $ e), _, v) =
1373 (thy, ptp, E, (l@[R]), e, a, v);
1375 | appy thy ptp E (*env*) l
1376 (Const ("Script.Repeat"(*2*),_) $ e) a v =
1377 ((*tracing("3### appy Repeat: a= " ^ term2str a);*)
1378 appy thy ptp E (*env*) (l@[R]) e a v)
1379 (* val (thy, ptp, E, l, (t as Const ("Script.Try",_) $ e $ a), _, v)=
1380 (thy, ptp, E, (l@[R]), e2, a, v);
1383 (t as Const ("Script.Try",_) $ e $ a) _ v =
1384 (case appy thy ptp E (l@[L,R]) e (SOME a) v of
1385 Napp E => ((*tracing("### appy Try " ^ term2str t);*)
1388 (* val (thy, ptp, E, l, (t as Const ("Script.Try",_) $ e), _, v)=
1389 (thy, ptp, E, (l@[R]), e2, a, v);
1390 val (thy, ptp, E, l, (t as Const ("Script.Try",_) $ e), _, v)=
1391 (thy, ptp, E, (l@[L,R]), e1, a, v);
1394 (t as Const ("Script.Try",_) $ e) a v =
1395 (case appy thy ptp E (l@[R]) e a v of
1396 Napp E => ((*tracing("### appy Try " ^ term2str t);*)
1402 (Const ("Script.Or"(*1*),_) $e1 $ e2 $ a) _ v =
1403 (case appy thy ptp E (l@[L,L,R]) e1 (SOME a) v of
1404 Appy lme => Appy lme
1405 | _ => appy thy ptp E (*env*) (l@[L,R]) e2 (SOME a) v)
1408 (Const ("Script.Or"(*2*),_) $e1 $ e2) a v =
1409 (case appy thy ptp E (l@[L,R]) e1 a v of
1410 Appy lme => Appy lme
1411 | _ => appy thy ptp E (l@[R]) e2 a v)
1413 (* val (thy, ptp, E, l, (Const ("Script.Seq",_) $ e1 $ e2 $ a), _, v)=
1414 (thy, ptp, E,(up@[R]),e2, a, v);
1415 val (thy, ptp, E, l, (Const ("Script.Seq",_) $ e1 $ e2 $ a), _, v)=
1416 (thy, ptp, E,(up@[R,D]),body, a, v);
1419 (Const ("Script.Seq"(*1*),_) $ e1 $ e2 $ a) _ v =
1420 ((*tracing("### appy Seq $ e1 $ e2 $ a, upd_env= "^
1421 (subst2str (upd_env E (a,v))));*)
1422 case appy thy ptp E (l@[L,L,R]) e1 (SOME a) v of
1423 Skip (v,E) => appy thy ptp E (l@[L,R]) e2 (SOME a) v
1426 (* val (thy, ptp, E, l, (Const ("Script.Seq",_) $ e1 $ e2), _, v)=
1427 (thy, ptp, E,(up@[R]),e2, a, v);
1428 val (thy, ptp, E, l, (Const ("Script.Seq",_) $ e1 $ e2), _, v)=
1429 (thy, ptp, E,(l@[R]), e2, a, v);
1430 val (thy, ptp, E, l, (Const ("Script.Seq",_) $ e1 $ e2), _, v)=
1431 (thy, ptp, E,(up@[R,D]),body, a, v);
1434 (Const ("Script.Seq",_) $ e1 $ e2) a v =
1435 (case appy thy ptp E (l@[L,R]) e1 a v of
1436 Skip (v,E) => appy thy ptp E (l@[R]) e2 a v
1439 (*.a leaf has been found*)
1440 | appy (thy as (th,sr)) (pt, p) E l t a v =
1441 (* val (thy as (th,sr),(pt, p),E, l, t, a, v) =
1442 (thy, ptp, E, up@[R,D], body, a, v);
1443 val (thy as (th,sr),(pt, p),E, l, t, a, v) =
1444 (thy, ptp, E, l@[L,R], e, a, v);
1445 val (thy as (th,sr),(pt, p),E, l, t, a, v) =
1446 (thy, ptp, E,(l@[R]), e, a, v);
1448 (case handle_leaf "next " th sr E a v t of
1449 (* val (a', Expr s) = handle_leaf "next " th sr E a v t;
1451 (a', Expr s) => Skip (s, E)
1452 (* val (a', STac stac) = handle_leaf "next " th sr E a v t;
1454 | (a', STac stac) =>
1456 (*val _= tracing("### appy t, vor stac2tac_ is=");
1457 val _= tracing(istate2str (ScrState (E,l,a',v,Sundef,false)));*)
1458 val (m,m') = stac2tac_ pt (assoc_thy th) stac
1460 Subproblem _ => Appy (m', (E,l,a',tac_2res m',Sundef,false))
1461 | _ => (case applicable_in p pt m of
1462 (* val Appl m' = applicable_in p pt m;
1465 ((*tracing("### appy: Appy");*)
1466 Appy (m', (E,l,a',tac_2res m',Sundef,false)))
1467 | _ => ((*tracing("### appy: Napp");*)Napp E))
1471 (* val (scr as Script sc, l, t as Const ("HOL.Let",_) $ _) =
1472 (Script sc, up, go up sc);
1473 nxt_up thy ptp (Script sc) E l ay t a v;
1475 val (thy,ptp,scr as (Script sc),E,l, ay, t as Const ("HOL.Let",_) $ _, a, v)=
1476 (thy,ptp,Script sc, E,up,ay, go up sc, a, v);
1477 nxt_up thy ptp scr E l ay t a v;
1479 fun nxt_up thy ptp (scr as (Script sc)) E l ay
1480 (t as Const ("HOL.Let",_) $ _) a v = (*comes from let=...*)
1481 ((*tracing("### nxt_up1 Let$e: is=");
1482 tracing(istate2str (ScrState (E,l,a,v,Sundef,false)));*)
1484 then nstep_up thy ptp scr E (drop_last l) Napp_ a v
1486 let val up = drop_last l;
1487 val (Const ("HOL.Let",_) $ e $ (Abs (i,T,body))) = go up sc;
1488 val i = mk_Free (i, T);
1489 val E = upd_env E (i, v);
1490 (*val _= tracing("### nxt_up2 Let$e: is=");
1491 val _= tracing(istate2str (ScrState (E,l,a,v,Sundef,false)));*)
1492 in case appy thy ptp (E) (up@[R,D]) body a v of
1493 Appy lre => Appy lre
1494 | Napp E => nstep_up thy ptp scr E up Napp_ a v
1495 | Skip (v,E) => nstep_up thy ptp scr E up Skip_ a v end)
1497 | nxt_up thy ptp scr E l ay
1498 (t as Abs (_,_,_)) a v =
1499 ((*tracing("### nxt_up Abs: " ^ term2str t);*)
1500 nstep_up thy ptp scr E (*enr*) l ay a v)
1502 | nxt_up thy ptp scr E l ay
1503 (t as Const ("HOL.Let",_) $ e $ (Abs (i,T,b))) a v =
1504 ((*tracing("### nxt_up Let$e$Abs: is=");
1505 tracing(istate2str (ScrState (E,l,a,v,Sundef,false)));*)
1506 (*tracing("### nxt_up Let e Abs: " ^ term2str t);*)
1507 nstep_up thy ptp scr (*upd_env*) E (*a,v)*)
1508 (*eno,upd_env env (iar,res),iar,res,saf*) l ay a v)
1510 (*no appy_: never causes Napp -> Helpless*)
1511 | nxt_up (thy as (th,sr)) ptp scr E l _
1512 (Const ("Script.While"(*1*),_) $ c $ e $ _) a v =
1513 if eval_true_ th sr (subst_atomic (upd_env_opt E (a,v)) c)
1514 then case appy thy ptp E (l@[L,R]) e a v of
1516 | Napp E => nstep_up thy ptp scr E l Skip_ a v
1517 | Skip (v,E) => nstep_up thy ptp scr E l Skip_ a v
1518 else nstep_up thy ptp scr E l Skip_ a v
1520 (*no appy_: never causes Napp - Helpless*)
1521 | nxt_up (thy as (th,sr)) ptp scr E l _
1522 (Const ("Script.While"(*2*),_) $ c $ e) a v =
1523 if eval_true_ th sr (subst_atomic (upd_env_opt E (a,v)) c)
1524 then case appy thy ptp E (l@[R]) e a v of
1526 | Napp E => nstep_up thy ptp scr E l Skip_ a v
1527 | Skip (v,E) => nstep_up thy ptp scr E l Skip_ a v
1528 else nstep_up thy ptp scr E l Skip_ a v
1530 (* val (scr, l) = (Script sc, up);
1532 | nxt_up thy ptp scr E l ay (Const ("If",_) $ _ $ _ $ _) a v =
1533 nstep_up thy ptp scr E l ay a v
1535 | nxt_up thy ptp scr E l _ (*no appy_: there was already a stac below*)
1536 (Const ("Script.Repeat"(*1*),T) $ e $ _) a v =
1537 (case appy thy ptp (*upd_env*) E (*a,v)*) ((l@[L,R]):loc_) e a v of
1539 | Napp E => ((*tracing("### nxt_up Repeat a: ");*)
1540 nstep_up thy ptp scr E l Skip_ a v)
1541 | Skip (v,E) => ((*tracing("### nxt_up Repeat: Skip res ="^
1542 (Sign.string_of_term(sign_of (assoc_thy thy)) res'));*)
1543 nstep_up thy ptp scr E l Skip_ a v))
1545 | nxt_up thy ptp scr E l _ (*no appy_: there was already a stac below*)
1546 (Const ("Script.Repeat"(*2*),T) $ e) a v =
1547 (case appy thy ptp (*upd_env*) E (*a,v)*) ((l@[R]):loc_) e a v of
1549 | Napp E => ((*tracing("### nxt_up Repeat a: ");*)
1550 nstep_up thy ptp scr E l Skip_ a v)
1551 | Skip (v,E) => ((*tracing("### nxt_up Repeat: Skip res ="^
1552 (Sign.string_of_term(sign_of (assoc_thy thy)) res'));*)
1553 nstep_up thy ptp scr E l Skip_ a v))
1554 (* val (thy, ptp, scr, E, l, _,(t as Const ("Script.Try",_) $ e $ _), a, v) =
1555 (thy, ptp, (Script sc),
1556 E, up, ay,(go up sc), a, v);
1558 | nxt_up thy ptp scr E l _ (*makes Napp to Skip*)
1559 (t as Const ("Script.Try",_) $ e $ _) a v =
1560 ((*tracing("### nxt_up Try " ^ term2str t);*)
1561 nstep_up thy ptp scr E l Skip_ a v )
1562 (* val (thy, ptp, scr, E, l, _,(t as Const ("Script.Try",_) $ e), a, v) =
1563 (thy, ptp, (Script sc),
1564 E, up, ay,(go up sc), a, v);
1566 | nxt_up thy ptp scr E l _ (*makes Napp to Skip*)
1567 (t as Const ("Script.Try"(*2*),_) $ e) a v =
1568 ((*tracing("### nxt_up Try " ^ term2str t);*)
1569 nstep_up thy ptp scr E l Skip_ a v)
1572 | nxt_up thy ptp scr E l ay
1573 (Const ("Script.Or",_) $ _ $ _ $ _) a v = nstep_up thy ptp scr E l ay a v
1575 | nxt_up thy ptp scr E l ay
1576 (Const ("Script.Or",_) $ _ $ _) a v = nstep_up thy ptp scr E l ay a v
1578 | nxt_up thy ptp scr E l ay
1579 (Const ("Script.Or",_) $ _ ) a v =
1580 nstep_up thy ptp scr E (drop_last l) ay a v
1581 (* val (thy, ptp, scr, E, l, ay, (Const ("Script.Seq",_) $ _ $ _ $ _), a, v) =
1582 (thy, ptp, (Script sc),
1583 E, up, ay,(go up sc), a, v);
1585 | nxt_up thy ptp scr E l ay (*all has been done in (*2*) below*)
1586 (Const ("Script.Seq"(*1*),_) $ _ $ _ $ _) a v =
1587 nstep_up thy ptp scr E l ay a v
1588 (* val (thy, ptp, scr, E, l, ay, (Const ("Script.Seq",_) $ _ $ e2), a, v) =
1589 (thy, ptp, (Script sc),
1590 E, up, ay,(go up sc), a, v);
1592 | nxt_up thy ptp scr E l ay (*comes from e2*)
1593 (Const ("Script.Seq"(*2*),_) $ _ $ e2) a v =
1594 nstep_up thy ptp scr E l ay a v
1595 (* val (thy, ptp, scr, E, l, ay, (Const ("Script.Seq",_) $ _), a, v) =
1596 (thy, ptp, (Script sc),
1597 E, up, ay,(go up sc), a, v);
1599 | nxt_up thy ptp (scr as Script sc) E l ay (*comes from e1*)
1600 (Const ("Script.Seq",_) $ _) a v =
1602 then nstep_up thy ptp scr E (drop_last l) Napp_ a v
1604 let val up = drop_last l;
1605 val Const ("Script.Seq"(*2*),_) $ _ $ e2 = go up sc;
1606 in case appy thy ptp E (up@[R]) e2 a v of
1608 | Napp E => nstep_up thy ptp scr E up Napp_ a v
1609 | Skip (v,E) => nstep_up thy ptp scr E up Skip_ a v end
1611 | nxt_up (thy,_) ptp scr E l ay t a v =
1612 error ("nxt_up not impl for " ^ term2str t)
1614 (* val (thy, ptp, (Script sc), E, l, ay, a, v)=
1615 (thy, ptp, scr, E, l, Skip_, a, v);
1616 val (thy, ptp, (Script sc), E, l, ay, a, v)=
1617 (thy, ptp, sc, E, l, Skip_, a, v);
1619 and nstep_up thy ptp (Script sc) E l ay a v =
1620 ((*tracing ("### nstep_up from: " ^ (loc_2str l));
1621 tracing ("### nstep_up from: " ^ term2str (go l sc));*)
1625 val up = drop_last l;
1626 in ((*tracing("### nstep_up to: " ^ term2str (go up sc));*)
1627 nxt_up thy ptp (Script sc) E up ay (go up sc) a v ) end
1628 else (*interpreted to end*)
1629 if ay = Skip_ then Skip (v, E) else Napp E
1632 (* decide for the next applicable stac in the script;
1633 returns (stactic, value) - the value in case the script is finished
1634 12.8.02: ~~~~~ and no assumptions ??? FIXME ???
1635 20.8.02: must return p in case of finished, because the next script
1636 consulted need not be the calling script:
1637 in case of detail ie. _inserted_ PrfObjs, the next stac
1638 has to searched in a script with PblObj.status<>Complete !
1639 (.. not true for other details ..PrfObj ??????????????????
1640 20.8.02: do NOT return safe (is only changed in locate !!!)
1642 fun next_tac (thy,_) (pt,p) (Rfuns {next_rule,...}) (RrlsState(f,f',rss,_), ctxt) =
1643 let val ctxt = get_ctxt pt p
1646 then (End_Detail' (f',[])(*8.6.03*), (Uistate, ctxt),
1647 (f', Sundef(*FIXME is no value of next_tac! vor 8.6.03*))) (*finished*)
1649 (case next_rule rss f of
1650 NONE => (Empty_Tac_, (Uistate, ctxt), (e_term, Sundef)) (*helpless*)
1651 | SOME (Thm (id,thm))(*8.6.03: muss auch f' liefern ?!!*) =>
1652 (Rewrite' (thy, "e_rew_ord", e_rls,(*!?!8.6.03*) false,
1653 (id, string_of_thmI thm), f,(e_term,[(*!?!8.6.03*)])),
1654 (Uistate, ctxt), (e_term, Sundef))) (*next stac*)
1656 | next_tac thy (ptp as (pt,pos as (p,_)):ptree * pos') (sc as Script (h $ body))
1657 (ScrState (E,l,a,v,s,b), ctxt) =
1658 let val ctxt = get_ctxt pt pos
1661 then appy thy ptp E [R] body NONE v
1662 else nstep_up thy ptp sc E l Skip_ a v of
1663 Skip (v, _) => (*finished*)
1664 (case par_pbl_det pt p of
1666 let val (_,pblID,_) = get_obj g_spec pt p';
1667 in (Check_Postcond' (pblID, (v, [(*8.6.03 NO asms???*)])),
1668 (e_istate, ctxt), (v,s))
1671 (End_Detail' (e_term,[])(*8.6.03*), (e_istate, ctxt), (v,s)))
1672 | Napp _ => (Empty_Tac_, (e_istate, ctxt), (e_term, Sundef)) (*helpless*)
1673 | Appy (m', scrst as (_,_,_,v,_,_)) =>
1674 (m', (ScrState scrst, ctxt), (v, Sundef))) (*next stac*)
1676 | next_tac _ _ _ (is, _) = error ("next_tac: not impl for " ^ (istate2str is));
1679 (*.create the initial interpreter state from the items of the guard.*)
1680 fun init_scrstate thy itms metID =
1682 val actuals = itms2args thy metID itms;
1683 val scr as Script sc = (#scr o get_met) metID;
1684 val formals = formal_args sc
1685 (*expects same sequence of (actual) args in itms and (formal) args in met*)
1686 fun relate_args env [] [] = env
1687 | relate_args env _ [] =
1688 error ("ERROR in creating the environment for '" ^
1689 id_of_scr sc ^ "' from \nthe items of the guard of " ^
1690 metID2str metID ^ ",\n" ^
1691 "formal arg(s), from the script, miss actual arg(s), from the guards env:\n" ^
1692 (string_of_int o length) formals ^
1693 " formals: " ^ terms2str formals ^ "\n" ^
1694 (string_of_int o length) actuals ^
1695 " actuals: " ^ terms2str actuals)
1696 | relate_args env [] actual_finds = env (*may drop Find!*)
1697 | relate_args env (a::aa) (f::ff) =
1698 if type_of a = type_of f
1699 then relate_args (env @ [(a, f)]) aa ff
1701 error ("ERROR in creating the environment for '" ^
1702 id_of_scr sc ^ "' from \nthe items of the guard of " ^
1703 metID2str metID ^ ",\n" ^
1704 "different types of formal arg, from the script, " ^
1705 "and actual arg, from the guards env:'\n" ^
1706 "formal: '" ^ term2str a ^ "::" ^ (type2str o type_of) a ^ "'\n" ^
1707 "actual: '" ^ term2str f ^ "::" ^ (type2str o type_of) f ^ "'\n" ^
1709 "formals: " ^ terms2str formals ^ "\n" ^
1710 "actuals: " ^ terms2str actuals)
1711 val env = relate_args [] formals actuals;
1712 in (ScrState (env,[],NONE,e_term,Safe,true), (*FIXME.WN170511 remove*)e_ctxt, scr):istate * Proof.context * scr end;
1714 (* decide, where to get script/istate from:
1715 (*1*) from PblObj.env: at begin of script if no init_form
1716 (*2*) from PblObj/PrfObj: if stac is in the middle of the script
1717 (*3*) from rls/PrfObj: in case of detail a ruleset *)
1718 fun from_pblobj_or_detail' thy' (p,p_) pt =
1719 let val ctxt = get_ctxt pt (p,p_)
1721 if member op = [Pbl,Met] p_
1722 then case get_obj g_env pt p of
1723 NONE => error "from_pblobj_or_detail': no istate"
1726 val metID = get_obj g_metID pt p
1727 val {srls,...} = get_met metID
1728 in (srls, is, (#scr o get_met) metID) end
1730 let val (pbl,p',rls') = par_pbl_det pt p
1734 val thy = assoc_thy thy'
1735 val PblObj{meth=itms,...} = get_obj I pt p'
1736 val metID = get_obj g_metID pt p'
1737 val {srls,...} = get_met metID
1738 in (*if last_elem p = 0 nothing written to pt yet*)
1739 (srls, get_loc pt (p,p_), (#scr o get_met) metID)
1742 (e_rls, (*FIXME.WN0?: get from pbl or met !!! unused for Rrls in locate_gen, next_tac*)
1745 Rls {scr=scr,...} => scr
1746 | Seq {scr=scr,...} => scr
1747 | Rrls {scr=rfuns,...} => rfuns)
1751 (*.get script and istate from PblObj, see (*1*) above.*)
1752 fun from_pblobj' thy' (p,p_) pt =
1753 let val p' = par_pblobj pt p
1754 val thy = assoc_thy thy'
1755 val PblObj{meth=itms,...} = get_obj I pt p'
1756 val metID = get_obj g_metID pt p'
1757 val {srls,scr,...} = get_met metID
1758 in if last_elem p = 0 (*nothing written to pt yet*)
1759 then let val (is, ctxt, scr) = init_scrstate thy itms metID
1760 in (srls, (is, ctxt), scr) end
1761 else (srls, get_loc pt (p,p_), scr)
1764 (*.get the stactics and problems of a script as tacs
1765 instantiated with the current environment;
1766 l is the location which generated the given formula.*)
1767 (*WN.12.5.03: quick-and-dirty repair for listexpressions*)
1768 fun is_spec_pos Pbl = true
1769 | is_spec_pos Met = true
1770 | is_spec_pos _ = false;
1772 (*. fetch _all_ tactics from script .*)
1773 fun sel_rules _ (([],Res):pos') =
1774 raise PTREE "no tactics applicable at the end of a calculation"
1775 | sel_rules pt (p,p_) =
1777 then [get_obj g_tac pt p]
1779 let val pp = par_pblobj pt p;
1780 val thy' = (get_obj g_domID pt pp):theory';
1781 val thy = assoc_thy thy';
1782 val metID = get_obj g_metID pt pp;
1783 val metID' =if metID =e_metID then(thd3 o snd3)(get_obj g_origin pt pp)
1785 val {scr=Script sc,srls,...} = get_met metID'
1786 val ScrState (env,_,a,v,_,_) = get_istate pt (p,p_);
1787 in map ((stac2tac pt thy) o rep_stacexpr o #2 o
1788 (handle_leaf "selrul" thy' srls env a v)) (stacpbls sc) end;
1790 > val Script sc = (#scr o get_met) ("SqRoot","sqrt-equ-test");
1791 > val env = [((term_of o the o (parse (Thy_Info.get_theory "Isac"))) "bdv",
1792 (term_of o the o (parse (Thy_Info.get_theory "Isac"))) "x")];
1793 > map ((stac2tac pt thy) o #2 o(subst_stacexpr env NONE e_term)) (stacpbls sc);
1797 (*. fetch tactics from script and filter _applicable_ tactics;
1798 in case of Rewrite_Set* go down to _atomic_ rewrite-tactics .*)
1799 fun sel_appl_atomic_tacs _ (([],Res):pos') =
1800 raise PTREE "no tactics applicable at the end of a calculation"
1801 | sel_appl_atomic_tacs pt (p,p_) =
1803 then [get_obj g_tac pt p]
1805 let val pp = par_pblobj pt p
1806 val thy' = (get_obj g_domID pt pp):theory'
1807 val thy = assoc_thy thy'
1808 val metID = get_obj g_metID pt pp
1809 val metID' =if metID = e_metID
1810 then (thd3 o snd3) (get_obj g_origin pt pp)
1812 val {scr=Script sc,srls,erls,rew_ord'=ro,...} = get_met metID'
1813 val ScrState (env,_,a,v,_,_) = get_istate pt (p,p_)
1814 val alltacs = (*we expect at least 1 stac in a script*)
1815 map ((stac2tac pt thy) o rep_stacexpr o #2 o
1816 (handle_leaf "selrul" thy' srls env a v)) (stacpbls sc)
1818 Frm => get_obj g_form pt p
1819 | Res => (fst o (get_obj g_result pt)) p
1820 (*WN071231 ? replace atomic_appl_tacs with applicable_in (ineff!) ?*)
1821 in (distinct o flat o
1822 (map (atomic_appl_tacs thy ro erls f))) alltacs end;
1830 (* use"ME/script.sml";