1 (* elements of calculations.
2 they are partially held in association lists as ref's for
3 switching language levels (meta-string, object-values).
4 in order to keep these ref's during re-evaluation of code,
5 they are defined here the beginning of the code.
14 val linefeed = (curry op^) "\n";
15 type authors = string list;
18 val empty_cterm' = "empty_cterm'";
20 type thm' = thmID * cterm';(*WN060610 deprecated in favour of thm''*)
21 type thm'' = thmID * term;
23 (*.a 'guh'='globally unique handle' is a string unique for each element
24 of isac's KEStore and persistent over time
25 (in particular under shifts within the respective hierarchy);
27 # guh NOT resistant agains shifts from one thy to another
28 (which is the price for Isabelle's design: thy's overwrite ids of subthy's)
29 # requirement for matchTheory: induce guh from tac + current thy
30 (see 'fun thy_containing_thm', 'fun thy_containing_rls' etc.)
31 TODO: introduce to pbl, met.*)
33 val e_guh = "e_guh":guh;
37 (*. eval function calling sml code during rewriting.*)
38 type eval_fn = (string -> term -> theory -> (string * term) option);
39 fun e_evalfn (_:'a) (_:term) (_:theory) = NONE:(string * term) option;
40 (*. op in isa-term 'Const(op,_)' .*)
42 type cal = (calID * eval_fn);
43 (*. fun calculate_ fetches the evaluation-function via this list. *)
45 type calc = (calcID * cal);
47 type subs' = (cterm' * cterm') list; (*16.11.00 for FE-KE*)
48 type subst = (term * term) list; (*here for ets2str*)
49 val e_subst = []:(term * term) list;
51 (*TODO.WN060610 make use of "type rew_ord" total*)
52 type rew_ord' = string;
53 val e_rew_ord' = "e_rew_ord" : rew_ord';
54 type rew_ord_ = subst -> Term.term * Term.term -> bool;
55 fun dummy_ord (_:subst) (_:term,_:term) = true;
56 val e_rew_ord_ = dummy_ord;
57 type rew_ord = rew_ord' * rew_ord_;
58 val e_rew_ord = dummy_ord; (* TODO.WN071231 clarify identifiers..e_rew_ordX*)
59 val e_rew_ordX = (e_rew_ord', e_rew_ord_) : rew_ord;
63 Erule (*.the empty rule .*)
64 | Thm of (string * Basic_Thm.thm)(*.a theorem, ie (identifier, Thm.thm).*)
65 | Calc of string * (*.sml-code manipulating a (sub)term .*)
66 (string -> term -> theory -> (string * term) option)
67 | Cal1 of string * (*.sml-code applied only to whole term
68 or left/right-hand-side of eqality .*)
69 (string -> term -> theory -> (string * term) option)
70 | Rls_ of rls (*.ie. rule sets may be nested.*)
73 | Script of term (*for met*)
74 | Rfuns of {init_state : term ->
75 (term * (*the current formula:
76 goes locate_gen -> next_tac via istate*)
77 term * (*the final formula*)
78 rule list (*of reverse rewrite set (#1#)*)
79 list * (*may be serveral, eg. in norm_rational*)
80 (rule * (*Thm (+ Thm generated from Calc) resulting in ...*)
81 (term * (*... rewrite with ...*)
82 term list)) (*... assumptions*)
83 list), (*derivation from given term to normalform
84 in reverse order with sym_thm;
85 (#1#) could be extracted from here #1*)
87 normal_form: term -> (term * term list) option,
88 locate_rule: rule list list -> term -> rule
89 -> (rule * (term * term list)) list,
90 next_rule : rule list list -> term -> rule option,
91 attach_form: rule list list -> term -> term
92 -> (rule * (term * term list)) list}
95 Erls (*for init e_rls*)
97 | Rls of (*a confluent and terminating ruleset, in general *)
98 {id : string, (*for trace_rewrite:=true *)
99 preconds : term list, (*unused WN020820 *)
100 (*WN060616 for efficiency...
101 bdvs : false, (*set in prep_rls for get_bdvs *)*)
102 rew_ord : rew_ord, (*for rules*)
103 erls : rls, (*for the conditions in rules *)
104 srls : rls, (*for evaluation of list_fns in script *)
105 calc : calc list, (*for Calculate in scr, set by prep_rls *)
107 scr : scr} (*Script term: generating intermed.steps *)
108 | Seq of (*a sequence of rules to be tried only once *)
109 {id : string, (*for trace_rewrite:=true *)
110 preconds : term list, (*unused 20.8.02 *)
111 (*WN060616 for efficiency...
112 bdvs : false, (*set in prep_rls for get_bdvs *)*)
113 rew_ord : rew_ord, (*for rules *)
114 erls : rls, (*for the conditions in rules *)
115 srls : rls, (*for evaluation of list_fns in script *)
116 calc : calc list, (*for Calculate in scr, set by prep_rls *)
118 scr : scr} (*Script term (how to restrict type ???)*)
119 (*Rrls call SML-code and simulate an rls
120 difference: there is always _ONE_ redex rewritten in 1 call,
121 thus wrap Rrls by: Rls (Rls_ ...)*)
123 | Rrls of (* for 'reverse rewriting' by SML-functions instead Script *)
124 {id : string, (* for trace_rewrite := true *)
125 prepat : (term list *(* preconds, eval with subst from pattern;
126 if [HOLogic.true_const], match decides alone *)
127 term ) (* pattern matched with current (sub)term *)
128 list, (* meta-conjunction is or *)
129 rew_ord : rew_ord, (* for rules *)
130 erls : rls, (* for the conditions in rules and preconds *)
131 calc : calc list, (* for Calculate in scr, set automatic.in prep_rls *)
132 scr : scr}; (* Rfuns {...} (how to restrict type ???) *)
133 (*1.8.02 ad (how to restrict type ???): scr should be usable indepentently
134 from rls, and then contain both Script _AND_ Rfuns !!!*)
136 fun thy2ctxt' thy' = ProofContext.init_global (Thy_Info.get_theory thy');(*FIXXXME thy-ctxt*)
137 fun thy2ctxt thy = ProofContext.init_global thy;(*FIXXXME thy-ctxt*)
139 fun Isac _ = ProofContext.theory_of (thy2ctxt' "Isac"); (*@{theory "Isac"}*)
141 val e_rule = Thm ("refl", @{thm refl});
142 fun id_of_thm (Thm (id, _)) = id
143 | id_of_thm _ = error "id_of_thm";
144 fun thm_of_thm (Thm (_, thm)) = thm
145 | thm_of_thm _ = error "thm_of_thm";
146 fun rep_thm_G' (Thm (thmid, thm)) = (thmid, thm);
148 fun thmID_of_derivation_name dn = last_elem (space_explode "." dn);
149 fun thyID_of_derivation_name dn = hd (space_explode "." dn);
151 fun eq_thmI ((thmid1 : thmID, _ : thm), (thmid2 : thmID, _ : thm)) =
152 (strip_thy thmid1) = (strip_thy thmid2);
153 (*WN120201 weakened*)
154 fun eq_thmI ((thmid1 : thmID, _ : thm), (thmid2 : thmID, _)) = thmid1 = thmid2;
155 (*version typed weaker WN100910*)
156 fun eq_thmI' ((thmid1, _), (thmid2, _)) =
157 (thmID_of_derivation_name thmid1) = (thmID_of_derivation_name thmid2);
160 val string_of_thm = Thm.get_name_hint; (*FIXME.2009*)
161 (*check for [.] as caused by "fun assoc_thm'"*)
162 fun string_of_thmI thm =
163 let val ct' = (de_quote o string_of_thm) thm
164 val (a, b) = split_nlast (5, Symbol.explode ct')
166 [" ", " ","[", ".", "]"] => implode a
170 (*.id requested for all, Rls,Seq,Rrls.*)
171 fun id_rls Erls = "e_rls" (*WN060714 quick and dirty: recursive defs!*)
172 | id_rls (Rls {id,...}) = id
173 | id_rls (Seq {id,...}) = id
174 | id_rls (Rrls {id,...}) = id;
175 val rls2str = id_rls;
176 fun id_rule (Thm (id, _)) = id
177 | id_rule (Calc (id, _)) = id
178 | id_rule (Rls_ rls) = id_rls rls;
180 fun get_rules (Rls {rules,...}) = rules
181 | get_rules (Seq {rules,...}) = rules
182 | get_rules (Rrls _) = [];
184 fun rule2str Erule = "Erule"
185 | rule2str (Thm (str, thm)) = "Thm (\""^str^"\","^(string_of_thmI thm)^")"
186 | rule2str (Calc (str,f)) = "Calc (\""^str^"\",fn)"
187 | rule2str (Cal1 (str,f)) = "Cal1 (\""^str^"\",fn)"
188 | rule2str (Rls_ rls) = "Rls_ (\""^id_rls rls^"\")";
189 fun rule2str' Erule = "Erule"
190 | rule2str' (Thm (str, thm)) = "Thm (\""^str^"\",\"\")"
191 | rule2str' (Calc (str,f)) = "Calc (\""^str^"\",fn)"
192 | rule2str' (Cal1 (str,f)) = "Cal1 (\""^str^"\",fn)"
193 | rule2str' (Rls_ rls) = "Rls_ (\""^id_rls rls^"\")";
195 (*WN080102 compare eq_rule ?!?*)
196 fun eqrule (Thm (id1,_), Thm (id2,_)) = id1 = id2
197 | eqrule (Calc (id1,_), Calc (id2,_)) = id1 = id2
198 | eqrule (Cal1 (id1,_), Cal1 (id2,_)) = id1 = id2
199 | eqrule (Rls_ _, Rls_ _) = false (*{id=id1}{id=id2} = id1 = id2 FIXXME*)
203 type rrlsstate = (*state for reverse rewriting*)
204 (term * (*the current formula:
205 goes locate_gen -> next_tac via istate*)
206 term * (*the final formula*)
207 rule list (*of reverse rewrite set (#1#)*)
208 list * (*may be serveral, eg. in norm_rational*)
209 (rule * (*Thm (+ Thm generated from Calc) resulting in ...*)
210 (term * (*... rewrite with ...*)
211 term list)) (*... assumptions*)
212 list); (*derivation from given term to normalform
213 in reverse order with sym_thm;
214 (#1#) could be extracted from here #1*)
215 val e_type = Type("empty",[]);
216 val a_type = TFree("'a",[]);
217 val e_term = Const("empty",e_type);
218 val a_term = Free("empty",a_type);
219 val e_rrlsstate = (e_term,e_term,[[e_rule]],[(e_rule,(e_term,[]))]):rrlsstate;
224 (*22.2.02: ging auf Linux nicht (Stefan)
225 val e_scr = Script ((term_of o the o (parse thy)) "e_script");*)
226 val e_term = Const("empty", Type("'a", []));
227 val e_scr = Script e_term;
231 there are two kinds of theorems ...
232 (1) known by isabelle
233 (2) not known, eg. calc_thm, instantiated rls
234 the latter have a thmid "#..."
235 and thus outside isa we ALWAYS transport both (thmid,string_of_thmI)
236 and have a special assoc_thm / assoc_rls in this interface *)
237 type theory' = string; (* = domID ^".thy" WN.101011 ABOLISH !*)
238 type domID = string; (* domID ^".thy" = theory' WN.101011 replace by thyID*)
239 type thyID = string; (*WN.3.11.03 TODO: replace domID with thyID*)
241 fun string_of_thy thy = Context.theory_name thy: theory';
242 val theory2domID = string_of_thy;
243 val theory2thyID = (get_thy o string_of_thy) : theory -> thyID;
244 val theory2theory' = string_of_thy;
245 val theory2str = string_of_thy; (*WN050903 ..most consistent naming*)
246 val theory2str' = implode o (drop_last_n 4) o Symbol.explode o string_of_thy;
247 (*> theory2str' (Thy_Info.get_theory "Isac");
248 al it = "Isac" : string
251 fun thyID2theory' (thyID:thyID) = thyID;
253 let val ss = Symbol.explode thyID
254 val ext = implode (takelast (4, ss))
255 in if ext = ".thy" then thyID : theory' (*disarm abuse of thyID*)
259 (* thyID2theory' "Isac" (*ok*);
260 val it = "Isac" : theory'
261 > thyID2theory' "Isac" (*abuse, goes ok...*);
262 val it = "Isac" : theory'
265 fun theory'2thyID (theory':theory') = theory';
267 let val ss = Symbol.explode theory'
268 val ext = implode (takelast (4, ss))
269 in if ext = ".thy" then ((implode o (drop_last_n 4)) ss) : thyID
270 else theory' (*disarm abuse of theory'*)
273 (* theory'2thyID "Isac";
274 val it = "Isac" : thyID
275 > theory'2thyID "Isac";
276 val it = "Isac" : thyID*)
279 (*. WN0509 discussion:
280 #############################################################################
281 # How to manage theorys in subproblems wrt. the requirement, #
282 # that scripts should be re-usable ? #
283 #############################################################################
285 eg. 'Script Solve_rat_equation' calls 'SubProblem (RatEq',..'
286 which would not allow to 'solve (y'' = -M_b / EI, M_b)' by this script
287 because Biegelinie.thy is subthy of RatEq.thy and thus Biegelinie.M_b
288 is unknown in RatEq.thy and M_b cannot be parsed into the scripts guard
291 Preliminary solution:
292 # the thy in 'SubProblem (thy', pbl, arglist)' is not taken automatically,
293 # instead the 'maxthy (rootthy pt) thy' is taken for each subpbl
294 # however, a thy specified by the user in the rootpbl may lead to
295 errors in far-off subpbls (which are not yet reported properly !!!)
296 and interactively specifiying thys in subpbl is not very relevant.
298 Other solutions possible:
299 # always parse and type-check with Thy_Info.get_theory "Isac"
300 (rejected tue to the vague idea eg. to re-use equations for R in C etc.)
301 # regard the subthy-relation in specifying thys of subpbls
302 # specifically handle 'SubProblem (undefined, pbl, arglist)'
305 (*WN0509 TODO "ProtoPure" ... would be more consistent
306 with assoc_thy <--> theory2theory' +FIXME assoc_thy "e_domID" -> Script.thy*)
307 val e_domID = "e_domID":domID;
309 (*the key into the hierarchy ob theory elements*)
310 type theID = string list;
311 val e_theID = ["e_theID"];
312 val theID2str = strs2str;
313 (*theID eg. is ["IsacKnowledge", "Test", "Rulesets", "ac_plus_times"]*)
314 fun theID2thyID (theID:theID) =
315 if length theID >= 3 then (last_elem o (drop_last_n 2)) theID : thyID
316 else error ("theID2thyID called with "^ theID2str theID);
318 (*the key into the hierarchy ob problems*)
319 type pblID = string list; (* domID::...*)
320 val e_pblID = ["e_pblID"]:pblID;
321 val pblID2str = strs2str;
323 (*the key into the hierarchy ob methods*)
324 type metID = string list;
325 val e_metID = ["e_metID"]:metID;
326 val metID2str = strs2str;
328 (*either theID or pblID or metID*)
329 type kestoreID = string list;
330 val e_kestoreID = ["e_kestoreID"];
331 val kestoreID2str = strs2str;
333 (*for distinction of contexts*)
334 datatype ketype = Exp_ | Thy_ | Pbl_ | Met_;
335 fun ketype2str Exp_ = "Exp_"
336 | ketype2str Thy_ = "Thy_"
337 | ketype2str Pbl_ = "Pbl_"
338 | ketype2str Met_ = "Met_";
339 fun ketype2str' Exp_ = "Example"
340 | ketype2str' Thy_ = "Theory"
341 | ketype2str' Pbl_ = "Problem"
342 | ketype2str' Met_ = "Method";
344 (*see 'How to manage theorys in subproblems' at 'type thyID'*)
345 val theory' = Unsynchronized.ref ([]:(theory' * theory) list);
347 (*.all theories defined for Scripts, recorded in Scripts/Script.ML;
348 in order to distinguish them from general IsacKnowledge defined later on.*)
349 val script_thys = Unsynchronized.ref ([] : (theory' * theory) list);
352 (*rewrite orders, also stored in 'type met' and type 'and rls'
353 The association list is required for 'rewrite.."rew_ord"..'
354 WN0509 tests not well-organized: see smltest/Knowledge/termorder.sml*)
357 ([]:(rew_ord' * (*the key for the association list *)
358 (subst (*the bound variables - they get high order*)
359 -> (term * term) (*(t1, t2) to be compared *)
360 -> bool)) (*if t1 <= t2 then true else false *)
361 list); (*association list *)
363 rew_ord' := overwritel (!rew_ord', [("e_rew_ord", e_rew_ord),
364 ("dummy_ord", dummy_ord)]);
367 (*WN060120 a hack to get alltogether run again with minimal effort:
368 theory' is inserted for creating thy_hierarchy; calls for assoc_rls
370 val ruleset' = Unsynchronized.ref ([]:(rls' * (theory' * rls)) list);
372 (*FIXME.040207 calclist': used by prep_rls, NOT in met*)
373 val calclist'= Unsynchronized.ref ([]: calc list);
375 (*.the hierarchy of thydata.*)
377 (*.'a is for pbt | met.*)
378 (*WN.24.4.03 -"- ... type parameters; afterwards naming inconsistent*)
380 Ptyp of string * (*element within pblID*)
381 'a list * (*several pbts with different domIDs/thy
382 TODO: select by subthy (isaref.p.69)
383 presently only _ONE_ elem*)
384 ('a ptyp) list; (*the children nodes*)
386 (*.datatype for collecting thydata for hierarchy.*)
387 (*WN060720 more consistent naming would be 'type thyelem' or 'thelem'*)
388 (*WN0606 Htxt contains html which does not belong to the sml-kernel*)
389 datatype thydata = Html of {guh: guh,
390 coursedesign: authors,
391 mathauthors: authors,
392 html: string} (*html; for demos before database*)
394 coursedesign: authors,
395 mathauthors: authors,
398 coursedesign: authors,
399 mathauthors: authors,
400 (*like vvvvvvvvvvvvv val ruleset'
401 WN060711 redesign together !*)
402 thy_rls: (thyID * rls)}
404 coursedesign: authors,
405 mathauthors: authors,
408 coursedesign: authors,
409 mathauthors: authors,
410 ord: (subst -> (term * term) -> bool)};
411 val e_thydata = Html {guh="e_guh", coursedesign=[], mathauthors=[], html=""};
413 type thehier = (thydata ptyp) list;
414 val thehier = Unsynchronized.ref ([] : thehier); (*WN101011 make argument, del*)
416 (* an association list, gets the value once in Isac.ML.
417 stores Isabelle's thms as terms for compatibility with Theory.axioms_of.
418 WN1-1-28 make this data arguments and del ref ?*)
419 val isab_thm_thy = Unsynchronized.ref ([] : (thmID * (thyID * term)) list);
423 type filename = string;
425 (*val xxx = fn: a b => (a,b); ??? fun-definition ???*)
427 fun ii (_:term) = e_rrlsstate;
428 fun no (_:term) = SOME (e_term,[e_term]);
429 fun lo (_:rule list list) (_:term) (_:rule) = [(e_rule,(e_term,[e_term]))];
430 fun ne (_:rule list list) (_:term) = SOME e_rule;
431 fun fo (_:rule list list) (_:term) (_:term) = [(e_rule,(e_term,[e_term]))];
433 val e_rfuns = Rfuns {init_state=ii,normal_form=no,locate_rule=lo,
434 next_rule=ne,attach_form=fo};
440 rew_ord = ("dummy_ord", dummy_ord),
441 erls = Erls,srls = Erls,
443 rules = [], scr = EmptyScr}:rls;
444 val e_rrls = Rrls {id = "e_rrls",
446 rew_ord = ("dummy_ord", dummy_ord),
451 ruleset' := overwritel (!ruleset', [("e_rls",("Tools",e_rls)),
452 ("e_rrls",("Tools",e_rrls))
455 fun rep_rls (Rls {id,preconds,rew_ord,erls,srls,calc,(*asm_thm,*)rules,scr}) =
456 {id=id,preconds=preconds,rew_ord=rew_ord,erls=erls,srls=srls,calc=calc,
457 (*asm_thm=asm_thm,*)rules=rules,scr=scr}
458 | rep_rls (Seq {id,preconds,rew_ord,erls,srls,calc,(*asm_thm,*)rules,scr}) =
459 {id=id,preconds=preconds,rew_ord=rew_ord,erls=erls,srls=srls,calc=calc,
460 (*asm_thm=asm_thm,*)rules=rules,scr=scr}
461 | rep_rls Erls = rep_rls e_rls
462 | rep_rls (Rrls {id,...}) = rep_rls e_rls
463 (*error("rep_rls doesn't take apart reverse-rewrite-rule-sets: "^id)*);
464 (*| rep_rls (Seq {id,...}) =
465 error("rep_rls doesn't take apart reverse-rewrite-rule-sets: "^id);
468 (Rrls {id,(*asm_thm,*) calc, erls, prepat, rew_ord,
470 {attach_form,init_state,locate_rule,
471 next_rule,normal_form}}) =
472 {id=id,(*asm_thm=asm_thm,*) calc=calc, erls=erls, prepat=prepat,
473 rew_ord=rew_ord, attach_form=attach_form, init_state=init_state,
474 locate_rule=locate_rule, next_rule=next_rule, normal_form=normal_form}
475 | rep_rrls (Rls {id,...}) =
476 error ("rep_rrls doesn't take apart (normal) rule-sets: "^id)
477 | rep_rrls (Seq {id,...}) =
478 error ("rep_rrls doesn't take apart (normal) rule-sets: "^id);
480 fun append_rls id (Rls {id=_,preconds=pc,rew_ord=ro,erls=er,srls=sr,calc=ca,
481 rules =rs,scr=sc}) r =
482 (Rls{id=id,preconds=pc,rew_ord=ro,erls=er,srls=sr,calc=ca,
483 rules = rs @ r,scr=sc}:rls)
484 | append_rls id (Seq {id=_,preconds=pc,rew_ord=ro,erls=er,srls=sr,calc=ca,
485 rules =rs,scr=sc}) r =
486 (Seq{id=id,preconds=pc,rew_ord=ro,erls=er,srls=sr,calc=ca,
487 rules = rs @ r,scr=sc}:rls)
488 | append_rls id (Rrls _) _ =
489 error ("append_rls: not for reverse-rewrite-rule-set "^id);
491 (*. are _atomic_ rules equal ?.*)
492 (*WN080102 compare eqrule ?!?*)
493 fun eq_rule (Thm (thm1,_), Thm (thm2,_)) = thm1 = thm2
494 | eq_rule (Calc (id1,_), Calc (id2,_)) = id1 = id2
495 | eq_rule (Rls_ rls1, Rls_ rls2) = id_rls rls1 = id_rls rls2
496 (*id_rls checks for Rls, Seq, Rrls*)
499 fun merge_rls _ Erls rls = rls
500 | merge_rls _ rls Erls = rls
502 (Rls {id=id1,preconds=pc1,rew_ord=ro1,erls=er1,srls=sr1,calc=ca1,
503 (*asm_thm=at1,*)rules =rs1,scr=sc1})
504 (r2 as Rls {id=id2,preconds=pc2,rew_ord=ro2,erls=er2,srls=sr2,calc=ca2,
505 (*asm_thm=at2,*)rules =rs2,scr=sc2}) =
506 (Rls {id=id,preconds=pc1 @ ((#preconds o rep_rls) r2),
507 rew_ord=ro1,erls=merge_rls "" er1 er2(*er1*),
508 srls=merge_rls ("merged_"^id1^"_"^((#id o rep_rls) r2)) sr1
509 ((#srls o rep_rls) r2),
510 calc=ca1 @ ((#calc o rep_rls) r2),
511 (*asm_thm=at1 @ ((#asm_thm o rep_rls) r2),*)
512 rules = gen_union eq_rule rule2str (rs1, (#rules o rep_rls) r2),
515 (Seq {id=id1,preconds=pc1,rew_ord=ro1,erls=er1,srls=sr1,calc=ca1,
516 (*asm_thm=at1,*)rules =rs1,scr=sc1})
517 (r2 as Seq {id=id2,preconds=pc2,rew_ord=ro2,erls=er2,srls=sr2,calc=ca2,
518 (*asm_thm=at2,*)rules =rs2,scr=sc2}) =
519 (Seq {id=id,preconds=pc1 @ ((#preconds o rep_rls) r2),
520 rew_ord=ro1,erls=merge_rls "" er1 er2(*er1*),
521 srls=merge_rls ("merged_"^id1^"_"^((#id o rep_rls) r2)) sr1
522 ((#srls o rep_rls) r2),
523 calc=ca1 @ ((#calc o rep_rls) r2),
524 (*asm_thm=at1 @ ((#asm_thm o rep_rls) r2),*)
525 rules = gen_union eq_rule rule2str (rs1, (#rules o rep_rls) r2),
528 error "merge_rls: not for reverse-rewrite-rule-sets\
529 \and not for mixed Rls -- Seq";
530 fun remove_rls id (Rls {id=_,preconds=pc,rew_ord=ro,erls=er,srls=sr,calc=ca,
531 (*asm_thm=at,*)rules =rs,scr=sc}) r =
532 (Rls{id=id,preconds=pc,rew_ord=ro,erls=er,srls=sr,calc=ca,
533 (*asm_thm=at,*)rules = gen_rems eq_rule (rs, r),
535 | remove_rls id (Seq {id=_,preconds=pc,rew_ord=ro,erls=er,srls=sr,calc=ca,
536 (*asm_thm=at,*)rules =rs,scr=sc}) r =
537 (Seq{id=id,preconds=pc,rew_ord=ro,erls=er,srls=sr,calc=ca,
538 (*asm_thm=at,*)rules = gen_rems eq_rule (rs, r),
540 | remove_rls id (Rrls _) _ = error
541 ("remove_rls: not for reverse-rewrite-rule-set "^id);
543 (*!!!> gen_rems (op=) ([1,2,3,4], [3,4,5]);
544 val it = [1, 2] : int list*)
546 (*elder version: migrated 3 calls in smtest to memrls
548 case find_first ((curry op=) id) (map id_rule ((#rules o rep_rls) rls)) of
549 SOME _ => true | NONE => false;*)
550 fun memrls r (Rls {rules,...}) = gen_mem eqrule (r, rules)
551 | memrls r (Seq {rules,...}) = gen_mem eqrule (r, rules)
552 | memrls r _ = error ("memrls: incomplete impl. r= "^(rule2str r));
553 fun rls_get_thm rls (id: xstring) =
554 case find_first (curry eq_rule e_rule)
555 ((#rules o rep_rls) rls) of
556 SOME thm => SOME thm | NONE => NONE;
558 fun assoc' ([], key) = error ("ME_Isa: '"^key^"' not known")
559 | assoc' ((keyi, xi) :: pairs, key) =
560 if key = keyi then SOME xi else assoc' (pairs, key);
562 (*100818 fun assoc_thy (thy:theory') = ((the o assoc')(!theory',thy))
563 handle _ => error ("ME_Isa: thy '"^thy^"' not in system");*)
564 fun assoc_thy (thy:theory') =
565 if thy = "e_domID" then (Thy_Info.get_theory "Script") (*lower bound of Knowledge*)
566 else (Thy_Info.get_theory thy)
567 handle _ => error ("ME_Isa: thy '" ^ thy ^ "' not in system");
569 (*.associate an rls-identifier with an rls; related to 'fun assoc_rls'; WN111014?fun get_rls ?
570 these are NOT compatible to "fun assoc_thm'" in that they do NOT handle
571 overlays by re-using an identifier in different thys.*)
572 fun assoc_rls (rls:rls') = ((#2 o the o assoc')(!ruleset',rls))
573 handle _ => error ("ME_Isa: '"^rls^"' not in system");
574 (*fun assoc_rls (rls:rls') = ((the o assoc')(!ruleset',rls))
575 handle _ => error ("ME_Isa: '"^rls^"' not in system");*)
577 (*.overwrite an element in an association list and pair it with a thyID
578 in order to create the thy_hierarchy;
579 overwrites existing rls' even if they are defined in a different thy;
580 this is related to assoc_rls, TODO.WN060120: assoc_rew_ord, assoc_calc;.*)
581 (*WN060120 ...these are NOT compatible to "fun assoc_thm'" in that
582 they do NOT handle overlays by re-using an identifier in different thys;
583 "thyID.rlsID" would be a good solution, if the "." would be possible
585 actually a hack to get alltogether run again with minimal effort*)
586 fun insthy thy' (rls', rls) = (rls', (thy', rls));
587 fun overwritelthy thy (al, bl:(rls' * rls) list) =
588 let val bl' = map (insthy ((get_thy o theory2theory') thy)) bl
589 in overwritel (al, bl') end;
591 fun assoc_rew_ord ro = ((the o assoc') (!rew_ord',ro))
592 handle _ => error ("ME_Isa: rew_ord '"^ro^"' not in system");
593 (*get the string for stac from rule*)
594 fun assoc_calc ([], key) = error ("assoc_calc: '"^ key ^"' not found")
595 | assoc_calc ((calc, (keyi, xi)) :: pairs, key) =
596 if key = keyi then calc else assoc_calc (pairs, key);
597 (*only used for !calclist'...*)
598 fun assoc1 ([], key) = error ("assoc1 (for met.calc=): '"^ key
600 | assoc1 ((all as (keyi, _)) :: pairs, key) =
601 if key = keyi then all else assoc1 (pairs, key);
603 (*TODO.WN080102 clarify usage of type cal and type calc..*)
604 fun calID2calcID (calID : calID) =
605 let fun ass [] = error ("calID2calcID: "^calID^"not in calclist'")
606 | ass ((calci, (cali, eval_fn))::ids) =
607 if calID = cali then calci
609 in ass (!calclist') : calcID end;
611 fun term2str t = Print_Mode.setmp [] (Syntax.string_of_term
612 (ProofContext.init_global (Thy_Info.get_theory "Isac"))) t;
614 fun terms2str ts = (strs2str o (map term2str )) ts;
615 (*terms2str [t1,t2] = "[\"1 + 2\",\"abc\"]";*)
616 fun terms2str' ts = (strs2str' o (map term2str )) ts;
617 (*terms2str' [t1,t2] = "[1 + 2,abc]";*)
618 fun terms2strs ts = (map term2str) ts;
619 (*terms2strs [t1,t2] = ["1 + 2", "abc"];*)
621 fun termopt2str (SOME t) = "SOME " ^ term2str t
622 | termopt2str NONE = "NONE";
625 Print_Mode.setmp [] (Syntax.string_of_typ (thy2ctxt' "Isac")) typ;
626 val string_of_typ = type2str;
627 fun string_of_typ_thy thy typ =
628 Print_Mode.setmp [] (Syntax.string_of_typ (thy2ctxt thy)) typ;
630 fun subst2str (s:subst) =
632 (map (linefeed o pair2str o
634 (apfst term2str)))) s;
635 fun subst2str' (s:subst) =
639 (apfst term2str)))) s;
640 (*> subst2str' [(str2term "bdv", str2term "x"),
641 (str2term "bdv_2", str2term "y")];
642 val it = "[(bdv, x)]" : string
644 val env2str = subst2str;
648 fun scr2str (Script s) = "Script "^(term2str s)
649 | scr2str (Rfuns _) = "Rfuns";
652 fun maxthy thy1 thy2 = if Theory.subthy (thy1, thy2) then thy2 else thy1;
655 (*.trace internal steps of isac's rewriter*)
656 val trace_rewrite = Unsynchronized.ref false;
657 (*.depth of recursion in traces of the rewriter, if trace_rewrite:=true.*)
658 val depth = Unsynchronized.ref 99999;
659 (*.no of rewrites exceeding this int -> NO rewrite.*)
660 (*WN060829 still unused...*)
661 val lim_rewrite = Unsynchronized.ref 99999;
662 (*.no of derivation-elements exceeding this int -> SOME derivation-elements.*)
663 val lim_deriv = Unsynchronized.ref 100;
664 (*.switch for checking guhs unique before storing a pbl or met;
665 set true at startup (done at begin of ROOT.ML)
666 set false for editing IsacKnowledge (done at end of ROOT.ML).*)
667 val check_guhs_unique = Unsynchronized.ref true;
670 datatype lrd = (*elements of a path (=loc_) into an Isabelle term*)
672 | R (*go right at $*)
673 | D; (*go down at Abs*)
674 type loc_ = lrd list;
678 fun loc_2str (k:loc_) = (strs2str' o (map ldr2str)) k;