1		% (c) 2018-2025 Lehrstuhl fuer Softwaretechnik und Programmiersprachen,
2		% Heinrich Heine Universitaet Duesseldorf
3		% This software is licenced under EPL 1.0 (http://www.eclipse.org/org/documents/epl-v10.html)
4
5
6		:- module(tools_matching,
7		[fuzzy_match_codes_lower_case/2,
8		fuzzy_match_codes/2,
9		codes_to_lower_case/2, % to lower case, also performs Unicode simplifications
10		get_current_keywords/1, get_current_expr_keywords/1,
11		is_b_keyword/2, is_rules_dsl_keyword/2,
12		get_all_svg_classes/1, is_svg_shape_class/1,
13		get_all_svg_attributes/1, is_svg_number_attribute/2, is_svg_color_attribute/1,
14		is_svg_attribute/1, is_virtual_svg_attribute/1,
15		is_svg_color_name/1,
16		is_html_tag/1, is_html_attribute/1,
17		get_all_dot_attributes/1, is_dot_attribute/1,
18		dot2svg_attribute/2, dotshape2svg_class/2,
19		get_possible_preferences/1, get_possible_preferences_matches_msg/2,
20		get_possible_top_level_event_matches_msg/2,
21		get_possible_operation_matches_msg/2,
22		get_possible_fuzzy_matches_msg/3,
23		get_possible_completions_msg/3,
24		get_possible_fuzzy_matches_and_completions_msg/3 % both in one
25		]).
26
27		:- use_module(error_manager).
28		:- use_module(self_check).
29		:- use_module(library(lists)).
30
31		:- use_module(module_information).
32
33		:- module_info(group,infrastructure).
34		:- module_info(description,'A few utilities for fuzzy matching and completion.').
35
36		:- set_prolog_flag(double_quotes, codes).
37
38
39		:- assert_must_succeed(tools_matching:fuzzy_match_codes_lower_case("a","A")).
40		:- assert_must_succeed(tools_matching:fuzzy_match_codes_lower_case("aBcD","ABCd")).
41		:- assert_must_succeed(tools_matching:fuzzy_match_codes_lower_case("aBcD","ABxCd")).
42		:- assert_must_succeed(tools_matching:fuzzy_match_codes_lower_case("aBxcD","ABCd")).
43		:- assert_must_succeed(tools_matching:fuzzy_match_codes_lower_case("aBcD","ABCdx")).
44		:- assert_must_succeed(tools_matching:fuzzy_match_codes_lower_case("aBcDx","ABCd")).
45		:- assert_must_succeed(tools_matching:fuzzy_match_codes_lower_case("a_Bc_D","AB__Cd")).
46		%:- assert_must_succeed(tools_matching:fuzzy_match_codes_lower_case("äÄ","aA")).
47		:- assert_must_fail(tools_matching:fuzzy_match_codes_lower_case("abc","cba")).
48
49
50		fuzzy_match_codes_lower_case(Codes1,Codes2) :-
51		codes_to_lower_case(Codes1,LCodes1),
52		codes_to_lower_case(Codes2,LCodes2),
53	?	fuzzy_match_codes(LCodes1,LCodes2).
54
55		:- assert_must_succeed(tools_matching:fuzzy_match_codes("aBcD","aBcD")).
56		:- assert_must_succeed(tools_matching:fuzzy_match_codes("aBxcD","aBcD")).
57		:- assert_must_succeed(tools_matching:fuzzy_match_codes("aBcD","aBcxD")).
58		:- assert_must_succeed(tools_matching:fuzzy_match_codes("aBcD","aBcDx")).
59		:- assert_must_succeed(tools_matching:fuzzy_match_codes("xaBcD","aBcD")).
60		:- assert_must_succeed(tools_matching:fuzzy_match_codes("aBcD","xaBcD")).
61		:- assert_must_succeed(tools_matching:fuzzy_match_codes("version","verison")).
62		:- assert_must_fail(tools_matching:fuzzy_match_codes("abc","ABC")).
63
64		fuzzy_match_codes([],[]).
65	?	fuzzy_match_codes([H|T1],[H|T2]) :- !,fuzzy_match_codes(T1,T2).
66		fuzzy_match_codes([_|T],[_|T]) :- !. % one character rewritten
67		fuzzy_match_codes([H1|T1],L2) :- possible_skip_char(H1),!, % underscore _
68	?	fuzzy_match_codes(T1,L2).
69		fuzzy_match_codes(L1,[H2|T2]) :- possible_skip_char(H2),!,
70	?	fuzzy_match_codes(L1,T2).
71		fuzzy_match_codes([_|T],T) :- !. % one character too much
72		fuzzy_match_codes(T,[_|T]) :- !. % one character too few
73		fuzzy_match_codes([H1,H2|T],[H2,H1|T]) :- !. % swapping of two characters
74
75
76		%:- assert_must_succeed(tools_matching:codes_to_lower_case("äÄöAa","aaoaa")).
77
78		codes_to_lower_case([],[]).
79		codes_to_lower_case([C|T],[LC|LT]) :- code_to_lower_case(C,LC), codes_to_lower_case(T,LT).
80
81		% TO DO: normalise more UNICODE symbols, ...
82
83		code_to_lower_case(Char,LC_Char) :- Char >= 65, Char =< 90,!, LC_Char is Char+32.
84		code_to_lower_case(Char,LC_Char) :- Char >= 8320, Char =< 8329,!, LC_Char is Char-8272. % Unicode Subscripts
85		code_to_lower_case(8242,R) :- !, R=8242. % Unicode Prime
86		code_to_lower_case(8216,R) :- !, R=8242.
87		code_to_lower_case(8217,R) :- !, R=8242.
88		code_to_lower_case(Char,R) :- Char >= 192, Char =< 197,!, R=97. % upper-case a
89		code_to_lower_case(Char,R) :- Char >= 224, Char =< 229,!, R=97. % lower-case a
90		code_to_lower_case(Char,R) :- Char >= 200, Char =< 203,!, R=101. % upper-case e
91		code_to_lower_case(Char,R) :- Char >= 232, Char =< 235,!, R=101. % lower-case e
92		code_to_lower_case(Char,R) :- Char >= 204, Char =< 207,!, R=105. % upper-case i
93		code_to_lower_case(Char,R) :- Char >= 236, Char =< 239,!, R=105. % lower-case i
94		code_to_lower_case(Char,R) :- Char >= 210, Char =< 214,!, R=111. % upper-case o
95		code_to_lower_case(Char,R) :- Char >= 242, Char =< 246,!, R=111. % lower-case o
96		code_to_lower_case(Char,R) :- Char >= 217, Char =< 220,!, R=117. % upper-case u
97		code_to_lower_case(Char,R) :- Char >= 249, Char =< 252,!, R=117. % lower-case u
98		code_to_lower_case(253,R) :- !, R=121. % ý -> y
99		code_to_lower_case(209,R) :- !, R=110. % Ñ -> n
100		code_to_lower_case(241,R) :- !, R=110. % ñ -> n
101		code_to_lower_case(231,R) :- !, R=99. % ç -> c
102		code_to_lower_case(223,R) :- !, R=115. % ß -> s
103		code_to_lower_case(C,C).
104
105		% use_module(library(between)), between(150,255,R), atom_codes(A,[R]), format("~w : ~w~n",[R,A]),fail.
106
107		possible_skip_char(95). % _
108
109		:- use_module(specfile,[b_or_z_mode/0, csp_mode/0, xtl_mode/0, animation_minor_mode/1, classical_b_mode/0]).
110
111		get_current_expr_keywords(List) :-
112		get_current_keywords([expr,external_funs,pragma,predicate],List).
113		get_current_keywords(List) :-
114		get_current_keywords([expr,external_funs,pragma,predicate,prob_definitions,section,subst],List).
115
116		get_current_keywords(Types,List) :- b_or_z_mode,!,
117		(animation_minor_mode(Minor)
118		-> (classical_b_mode
119		% e.g., for rules_dsl allow both B and rules_dsl keywords at the moment, TODO: remove sections
120		% TODO: we should also ensure this is active for VisB expressions or when the REPL is classical B mode
121		-> get_keywords(Minor,Types,List1),
122		get_keywords(b,Types,List2),
123		append(List1,List2,List)
124		; get_keywords(Minor,Types,List))
125		; get_keywords(b,Types,List)).
126		get_current_keywords(_,List) :- csp_mode,!,
127		findall(Def,csp_keyword(Def),List).
128		get_current_keywords(_,List) :- xtl_mode,!,
129		findall(Def,xtl_keyword(Def),List).
130		get_current_keywords(_,[]).
131
132		% -----------------
133
134		csp_keyword(and).
135		csp_keyword(card).
136		csp_keyword(channel).
137		csp_keyword(datatype).
138		csp_keyword(diff).
139		csp_keyword(elem).
140		csp_keyword(empty).
141		csp_keyword(false).
142		csp_keyword(head).
143		csp_keyword(inter).
144		csp_keyword(length).
145		csp_keyword(let).
146		csp_keyword(member).
147		csp_keyword(mod).
148		csp_keyword(nametype).
149		csp_keyword(not).
150		csp_keyword(null).
151		csp_keyword(or).
152		csp_keyword(set).
153		csp_keyword(subtype).
154		csp_keyword(tail).
155		csp_keyword(true).
156		csp_keyword(union).
157		csp_keyword(within).
158		csp_keyword('CHAOS').
159		csp_keyword('Inter').
160		csp_keyword('Seq').
161		csp_keyword('Set').
162		csp_keyword('SKIP').
163		csp_keyword('STOP').
164		csp_keyword('Union').
165
166
167		xtl_keyword(prop).
168		xtl_keyword(start).
169		xtl_keyword(symb_trans).
170		xtl_keyword(symb_trans_enabled).
171		xtl_keyword(trans).
172		xtl_keyword(trans_prop).
173		xtl_keyword(animation_image).
174		xtl_keyword(animation_image_click_transition).
175		xtl_keyword(animation_image_right_click_transition).
176		xtl_keyword(animation_function_result).
177		xtl_keyword(heuristic_function_active).
178		xtl_keyword(heuristic_function_result).
179		xtl_keyword(prob_game_info).
180		xtl_keyword(prob_pragma_string).
181		xtl_keyword(nr_state_properties).
182
183		% -----------------
184
185		get_keywords(Mode,Types,List) :-
186		(Mode=b,select(prob_definitions,Types,Types1)
187		-> findall(Def,prob_special_def(Def),Ids1)
188		; Ids1=[], Types1=Types
189		),
190	?	(Mode=b,select(external_funs,Types1,Types2)
191		-> findall(Def,prob_external_fun(Def),Ids2,Ids1)
192		; Ids2=Ids1, Types2=Types1
193		),
194		findall(ID,(keyword(ID,Type,Modes), member(Mode,Modes), member(Type,Types2)),Ids,Ids2),
195		sort(Ids,List).
196
197		:- use_module(external_function_declarations,[external_function_library/2]).
198	?	prob_external_fun(Fun) :- external_function_library(Fun,File),
199		member(File,['LibraryStrings.def']). % ideally we want to only show the included libraries
200
201		prob_special_def(Def) :- special_definitions(Def,_).
202		prob_special_def(Def) :- set_pref_keyword(Def,_).
203		prob_special_def(Def) :- operation_pref_keyword(Def).
204
205		special_definitions('ASSERT_CTL',model_check).
206		special_definitions('ASSERT_LTL',model_check).
207		special_definitions('GOAL',model_check).
208		special_definitions('HEURISTIC_FUNCTION',model_check).
209		special_definitions('SCOPE',model_check).
210		special_definitions('CUSTOM_GRAPH',dot).
211		special_definitions('CUSTOM_GRAPH_EDGES',dot).
212		special_definitions('CUSTOM_GRAPH_NODES',dot).
213		special_definitions('VISB_DEFINITIONS_FILE',visb).
214		special_definitions('VISB_JSON_FILE',visb).
215		special_definitions('VISB_SVG_BOX',visb).
216		special_definitions('VISB_SVG_CONTENTS',visb).
217		special_definitions('VISB_SVG_EVENTS',visb).
218		special_definitions('VISB_SVG_FILE',visb).
219		special_definitions('VISB_SVG_HOVERS',visb).
220		special_definitions('VISB_SVG_OBJECTS',visb).
221		special_definitions('VISB_SVG_UPDATES',visb).
222		% this is a local identifier available inside event predicates: VISB_CLICK_META_INFOS
223		special_definitions('ANIMATION_CLICK',tkanim).
224		special_definitions('ANIMATION_EXPRESSION',tkanim).
225		special_definitions('ANIMATION_FUNCTION',tkanim).
226		special_definitions('ANIMATION_FUNCTION_DEFAULT',tkanim).
227		special_definitions('ANIMATION_IMG',tkanim).
228		special_definitions('ANIMATION_RIGHT_CLICK',tkanim).
229		special_definitions('ANIMATION_STR',tkanim).
230		special_definitions('ANIMATION_STR_JUSTIFY_LEFT',tkanim).
231		special_definitions('ANIMATION_STR_JUSTIFY_RIGHT',tkanim).
232		special_definitions('GAME_MCTS_RUNS',mcts).
233		special_definitions('GAME_MCTS_TIMEOUT',mcts).
234		special_definitions('GAME_MCTS_CACHE_LAST_TREE',mcts).
235		special_definitions('GAME_OVER',mcts).
236		special_definitions('GAME_PLAYER',mcts).
237		special_definitions('GAME_VALUE',mcts).
238		special_definitions('PROB_REQUIRED_VERSION',general).
239		% TODO: scope_, FORCE_SYMMETRY_, for sets
240
241		:- use_module(bmachine,[b_top_level_operation/1]).
242		operation_pref_keyword(OpPrefAtom) :-
243		b_top_level_operation(Top),
244		op_prefix(Prefix),
245		atom_concat(Prefix,Top,OpPrefAtom).
246		op_prefix('MAX_OPERATIONS_').
247		op_prefix('OPERATION_REUSE_OFF_').
248		op_prefix('SEQUENCE_CHART_').
249		op_prefix('DESCRIPTION_FOR_').
250
251		set_pref_keyword(SetPrefAtom,Pref) :-
252		get_possible_preferences(Prefs),
253		member(Pref,Prefs),
254		atom_concat('SET_PREF_',Pref,SetPrefAtom).
255
256		is_b_keyword(ID,Type) :- keyword(ID,Type,L), member(b,L).
257		is_rules_dsl_keyword(ID,Type) :- keyword(ID,Type,L), member(rules_dsl,L).
258
259		% list of language specific and context specific keywords
260		keyword(not,predicate,[b,eventb]).
261		keyword(or,predicate,[b,eventb]).
262		keyword('true',expr,[eventb]). % truth in Rodin parser
263		keyword('false',expr,[eventb]). % falsity in Rodin parser
264		keyword('TRUE',expr,[b,eventb,tla]).
265		keyword('FALSE',expr,[b,eventb,tla]).
266		keyword('BOOL',expr,[b,eventb]).
267		keyword('bool',expr,[b,eventb]).
268		keyword('POW',expr,[b,eventb]).
269		keyword('POW1',expr,[b,eventb]).
270		keyword('FIN',expr,[b]). % not available in Event-B
271		keyword('FIN1',expr,[b]). % ditto
272		keyword('union',expr,[b,eventb]).
273		keyword('inter',expr,[b,eventb]).
274		keyword('UNION',expr,[b,eventb]).
275		keyword('INTER',expr,[b,eventb]).
276		keyword('INTEGER',expr,[b]).
277		keyword('NATURAL',expr,[b]).
278		keyword('NATURAL1',expr,[b]).
279		keyword('INT',expr,[b,eventb]).
280		keyword('NAT',expr,[b,eventb]).
281		keyword('NAT1',expr,[b,eventb]).
282		keyword('MININT',expr,[b]).
283		keyword('MAXINT',expr,[b]).
284		keyword('min',expr,[b,eventb]).
285		keyword('max',expr,[b,eventb]).
286		keyword('SIGMA',expr,[b]).
287		keyword('PI',expr,[b]).
288		keyword('STRING',expr,[b,tla]).
289		keyword('card',expr,[b,eventb]).
290		keyword('finite',expr,[eventb]).
291		keyword('@finite',expr,[b]).
292		keyword('dom',expr,[b,eventb]).
293		keyword('ran',expr,[b,eventb]).
294		keyword('id',expr,[b,eventb]).
295		keyword('@partition',expr,[b]).
296		keyword('partition',expr,[eventb]).
297		keyword('prj1',expr,[b,eventb]).
298		keyword('prj2',expr,[b,eventb]).
299		keyword('@prj1',expr,[b]).
300		keyword('@prj2',expr,[b]).
301		keyword('pred',expr,[b,eventb]).
302		keyword('succ',expr,[b,eventb]).
303		keyword('closure',expr,[b]).
304		keyword('closure1',expr,[b]).
305		keyword('iterate',expr,[b]).
306		keyword('fnc',expr,[b]). % also Event-B ?
307		keyword('rel',expr,[b]).
308
309		keyword('seq',expr,[b]).
310		keyword('seq1',expr,[b]).
311		keyword('iseq',expr,[b]).
312		keyword('iseq1',expr,[b]).
313		keyword('perm',expr,[b]).
314		keyword('size',expr,[b]).
315		keyword('rev',expr,[b]).
316		keyword('first',expr,[b]).
317		keyword('last',expr,[b]).
318		keyword('front',expr,[b]).
319		keyword('tail',expr,[b]).
320		keyword('conc',expr,[b]).
321		keyword('struct',expr,[b]).
322		keyword('rec',expr,[b]).
323		keyword('STRING',expr,[b]).
324
325		% TREE keywords
326		keyword('arity',expr,[b]).
327		keyword('bin',expr,[b]).
328		keyword('btree',expr,[b]).
329		keyword('const',expr,[b]).
330		keyword('father',expr,[b]).
331		keyword('infix',expr,[b]).
332		keyword('left',expr,[b]).
333		keyword('mirror',expr,[b]).
334		keyword('prefix',expr,[b]).
335		keyword('postfix',expr,[b]).
336		keyword('rank',expr,[b]).
337		keyword('right',expr,[b]).
338		keyword('sizet',expr,[b]).
339		keyword('son',expr,[b]).
340		keyword('sons',expr,[b]).
341		keyword('subtree',expr,[b]).
342		keyword('top',expr,[b]).
343		keyword('tree',expr,[b]).
344
345
346		% REAL keywords
347		keyword('floor',expr,[b]).
348		keyword('ceiling',expr,[b]).
349		keyword('real',expr,[b]).
350		keyword('REAL',expr,[b]).
351		keyword('FLOAT',expr,[b]).
352
353		% ---
354
355		keyword('btrue',predicate,[b]).
356		keyword('bfalse',predicate,[b]).
357
358		keyword('skip',subst,[b]).
359		keyword('ANY',subst,[b]).
360		keyword('ASSERT',subst,[b]).
361		keyword('BEGIN',subst,[b]).
362		keyword('CASE',subst,[b,tla]).
363		keyword('CHOICE',subst,[b]).
364		keyword('DO',subst,[b]).
365		keyword('EITHER',subst,[b]).
366		keyword('OR',subst,[b]).
367		keyword('OF',subst,[b]).
368		keyword('PRE',subst,[b]).
369		keyword('SELECT',subst,[b]).
370		keyword('WHERE',subst,[b]).
371		keyword('WHILE',subst,[b]).
372		keyword('WITH',subst,[b,tla]).
373
374		% --
375
376		keyword('ABSTRACT_CONSTANTS',section,[b]).
377		keyword('ABSTRACT_VARIABLES',section,[b]).
378		keyword('ASSERTIONS',section,[b]).
379		keyword('CONCRETE_CONSTANTS',section,[b]).
380		keyword('CONCRETE_VARIABLES',section,[b]).
381		keyword('CONSTANTS',section,[b,tla]).
382		keyword('CONSTRAINTS',section,[b]).
383		keyword('DEFINITIONS',section,[b]).
384		keyword('EVENT',section,[b]).
385		keyword('EXTENDS',section,[b,tla]).
386		keyword('FREETYPES',section,[b]).
387		keyword('IMPLEMENTATION',section,[b]).
388		keyword('IMPORTS',section,[b]).
389		keyword('INCLUDES',section,[b]).
390		keyword('INITIALISATION',section,[b]).
391		keyword('INITIALIZATION',section,[b]).
392		keyword('INVARIANT',section,[b]).
393		keyword('LOCAL_OPERATIONS',section,[b]).
394		keyword('MACHINE',section,[b]).
395		keyword('MODEL',section,[b]).
396		keyword('OPERATIONS',section,[b]).
397		keyword('PROMOTES',section,[b]).
398		keyword('PROPERTIES',section,[b]).
399		keyword('REFINEMENT',section,[b]).
400		keyword('REFINES',section,[b]).
401		keyword('SEES',section,[b]).
402		keyword('SETS',section,[b]).
403		keyword('SYSTEM',section,[b]).
404		keyword('USES',section,[b]).
405		keyword('VALUES',section,[b]).
406		keyword('VARIABLES',section,[b,tla]).
407		keyword('VARIANT',section,[b]).
408
409		% rules-dsl sections
410		keyword('ACTIVATION',section,[rules_dsl]).
411		keyword('BODY',section,[rules_dsl]).
412		keyword('CLASSIFICATION',section,[rules_dsl]).
413		keyword('COMPUTATION',section,[rules_dsl]).
414		keyword('COUNTEREXAMPLE',section,[rules_dsl]).
415		keyword('DEPENDS_ON_COMPUTATION',section,[rules_dsl]).
416		keyword('DEPENDS_ON_RULE',section,[rules_dsl]).
417		keyword('DEFINE',section,[rules_dsl]).
418		keyword('DUMMY_VALUE',section,[rules_dsl]).
419		keyword('ERROR_TYPE',section,[rules_dsl]).
420		keyword('ERROR_TYPES',section,[rules_dsl]).
421		keyword('FOR',section,[rules_dsl]).
422		keyword('FUNCTION',section,[rules_dsl]).
423		keyword('ON_SUCCESS',section,[rules_dsl]).
424		keyword('POSTCONDITION',section,[rules_dsl]).
425		keyword('PRECONDITION',section,[rules_dsl]).
426		keyword('REFERENCES',section,[rules_dsl]).
427		keyword('REPLACES',section,[rules_dsl]).
428		keyword('RULE_FAIL',section,[rules_dsl]).
429		keyword('RULE_FORALL',section,[rules_dsl]).
430		keyword('RULE',section,[rules_dsl]).
431		keyword('RULEID',section,[rules_dsl]).
432		keyword('RULES_MACHINE',section,[rules_dsl]).
433		keyword('TAGS',section,[rules_dsl]).
434		keyword('TYPE',section,[rules_dsl]).
435		keyword('UNCHECKED',section,[rules_dsl]).
436		keyword('VALUE',section,[rules_dsl]).
437
438
439		% TODO: check if these below are available within expressions:
440		keyword('DISABLED_RULE',section,[rules_dsl]).
441		keyword('FAILED_RULE',section,[rules_dsl]).
442		keyword('FAILED_RULE_ERROR_TYPE',section,[rules_dsl]).
443		keyword('FAILED_RULE_ALL_ERROR_TYPES',section,[rules_dsl]).
444		keyword('GET_RULE_COUNTEREXAMPLES',section,[rules_dsl]).
445		keyword('NOT_CHECKED_RULE',section,[rules_dsl]).
446		keyword('STRING_FORMAT',section,[rules_dsl]).
447		keyword('SUCCEEDED_RULE',section,[rules_dsl]).
448		keyword('SUCCEEDED_RULE_ERROR_TYPE',section,[rules_dsl]).
449
450
451		keyword('@desc',pragma,[b]).
452		keyword('@file',pragma,[b]).
453		keyword('@generated',pragma,[b]).
454		keyword('@import-package',pragma,[b]).
455		keyword('@label',pragma,[b]).
456		keyword('@package',pragma,[b]).
457		keyword('@symbolic',pragma,[b]).
458
459		% TLA sections
460		keyword('ASSUME',section,[tla]).
461		keyword('ASSUMPTION',section,[tla]).
462		keyword('AXIOM',section,[tla]).
463		keyword('CONSTANT',section,[tla]).
464		keyword('LOCAL',section,[tla]).
465		keyword('INSTANCE',section,[tla]).
466		keyword('MODULE',section,[tla]).
467		keyword('THEOREM',section,[tla]).
468
469		keyword('IF',_,[b,tla]).
470		keyword('THEN',_,[b,tla]).
471		keyword('ELSE',_,[b,tla]).
472		keyword('ELSIF',_,[b]).
473		keyword('LET',_,[b,tla]).
474		keyword('BE',_,[b]).
475		keyword('IN',_,[b,tla]).
476		keyword('END',_,[b,tla]).
477
478		% TLA expression keywords
479		keyword('BOOLEAN',expr,[tla]).
480		keyword('Cardinality',expr,[tla]).
481		keyword('CHOOSE',expr,[tla]).
482		keyword('DOMAIN',expr,[tla]).
483		keyword('ENABLED',expr,[tla]).
484		keyword('EXCEPT',expr,[tla]).
485		keyword('SUBSET',expr,[tla]).
486		keyword('UNCHANGED',expr,[tla]).
487		keyword('UNION',expr,[tla]).
488
489		% Alloy sections
490		keyword('abstract',section,[alloy]).
491		keyword('assert',section,[alloy]).
492		keyword('check',section,[alloy]).
493		keyword('extends',section,[alloy]).
494		keyword('fact',section,[alloy]).
495		keyword('fun',section,[alloy]).
496		keyword('module',section,[alloy]).
497		keyword('open',section,[alloy]).
498		keyword('pred',section,[alloy]).
499		keyword('run',section,[alloy]).
500		keyword('sig',section,[alloy]).
501
502
503		keyword('div',expr,[alloy]).
504		keyword('minus',expr,[alloy]).
505		keyword('else',expr,[alloy]).
506		keyword('iden',expr,[alloy]).
507		keyword('let',expr,[alloy]).
508		keyword('mul',expr,[alloy]).
509		keyword('plus',expr,[alloy]).
510		keyword('rem',expr,[alloy]).
511		keyword('sum',expr,[alloy]).
512		keyword('univ',expr,[alloy]).
513
514		keyword('all',predicate,[alloy]).
515		keyword('disjoint',predicate,[alloy]).
516		keyword('iff',predicate,[alloy]).
517		keyword('implies',predicate,[alloy]).
518		keyword('lone',predicate,[alloy]).
519		keyword('not',predicate,[alloy]).
520		keyword('no',predicate,[alloy]).
521		keyword('none',predicate,[alloy]).
522		keyword('one',predicate,[alloy]).
523		keyword('or',predicate,[alloy]).
524		keyword('some',predicate,[alloy]).
525		keyword('set',expr,[alloy]).
526
527		% SVG
528
529		get_all_svg_classes(SList) :- findall(A,is_svg_shape_class(A),List), sort(List,SList).
530
531		is_svg_shape_class(a).
532		is_svg_shape_class(animate). % can be a child of other elements
533		is_svg_shape_class(animateMotion). % can be a child of other elements
534		is_svg_shape_class(animateTransform). % can be a child of other elements
535		is_svg_shape_class(circle).
536		is_svg_shape_class(clipPath).
537		is_svg_shape_class(defs).
538		is_svg_shape_class(desc).
539		is_svg_shape_class(ellipse).
540		is_svg_shape_class(filter).
541		is_svg_shape_class(foreignObject). % can have HTML as children, body, table, tr, th, td
542		is_svg_shape_class(g). % group
543		is_svg_shape_class(image). % SVG files displayed with <image> cannot be interactive, include dynamic elements with <use>
544		is_svg_shape_class(line).
545		is_svg_shape_class(marker).
546		is_svg_shape_class(mask).
547		is_svg_shape_class(mpath).
548		is_svg_shape_class(path).
549		is_svg_shape_class(pattern).
550		is_svg_shape_class(polygon).
551		is_svg_shape_class(polyline).
552		is_svg_shape_class(rect).
553		is_svg_shape_class(script).
554		is_svg_shape_class(set).
555		is_svg_shape_class(style).
556		is_svg_shape_class(svg).
557		is_svg_shape_class(symbol).
558		is_svg_shape_class(text).
559		is_svg_shape_class(title). % useful when adding as children to other objects
560		is_svg_shape_class(tspan).
561		is_svg_shape_class(use).
562		is_svg_shape_class(view).
563		is_svg_shape_class(viewport).
564		% Note: one can also create <svg>, ... and HTML tags such as with document.createElementNS
565		% Note: script and title are also HTML tags
566
567		get_all_svg_attributes(SList) :- findall(A,is_svg_attribute(A),List), sort(List,SList).
568
569		% virtual attributes processed by VisB
570		is_virtual_svg_attribute(children).
571		is_virtual_svg_attribute(group_id). % also works like parent_id and can be used to attach animate objects
572		is_virtual_svg_attribute(hovers).
573		is_virtual_svg_attribute(svg_class).
574		is_virtual_svg_attribute(text).
575		is_virtual_svg_attribute(title).
576
577		% first list of svg attributes which are not number or color attributes
578		is_svg_attribute('alignment-baseline'). % auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical | top | center | bottom
579		is_svg_attribute(attributeName). % from animate / animateTransform
580		is_svg_attribute(attributeType). % from animate
581		is_svg_attribute(begin). % from animate
582		is_svg_attribute(children). % virtual attribute of VisB
583		is_svg_attribute(class).
584		is_svg_attribute('clip-path').
585		is_svg_attribute('clip-rule').
586		is_svg_attribute('color-rendering').
587		is_svg_attribute(cursor).
588		is_svg_attribute(d). % path
589		is_svg_attribute(display).
590		is_svg_attribute(dur). % from animate
591		is_svg_attribute('dominant-baseline'). % auto | text-bottom | alphabetic | ideographic | middle | central | mathematical | hanging | text-top
592		is_svg_attribute('fill-opacity').
593		is_svg_attribute('fill-rule').
594		is_svg_attribute('filter').
595		is_svg_attribute('flood-opacity').
596		is_svg_attribute('font-family').
597		% font-size is below under number attributes
598		is_svg_attribute('font-style'). % normal | italic | oblique
599		is_svg_attribute('font-variant').
600		is_svg_attribute('font-weight'). % normal | bold | bolder | lighter | <number>
601		is_svg_attribute(from).
602		is_svg_attribute(group_id). % virtual attribute of VisB
603		is_svg_attribute(hovers). % virtual attribute of VisB
604		is_svg_attribute('href'). % use
605		is_svg_attribute(id).
606		is_svg_attribute('lengthAdjust'). % spacing | spacingAndGlyphs for text
607		is_svg_attribute('marker-end').
608		is_svg_attribute('marker-start').
609		is_svg_attribute(mask).
610		% Note: name is a deprecated SVG attribute
611		is_svg_attribute(overflow). % for text, foreigObject, ...
612		is_svg_attribute(path).
613		is_svg_attribute('pointer-events').
614		is_svg_attribute(points). % polyline, polygon
615		is_svg_attribute(preserveAspectRatio).
616		is_svg_attribute(radius).
617		is_svg_attribute(repeatDur).
618		is_svg_attribute(repeatCount). % from animate
619		is_svg_attribute(restart).
620		is_svg_attribute(rotate).
621		is_svg_attribute(scale).
622		is_svg_attribute(seed).
623		is_svg_attribute('shape-rendering').
624		is_svg_attribute(startoffset).
625		is_svg_attribute(stdDeviation).
626		is_svg_attribute(stitchTiles).
627		is_svg_attribute(stroke).
628		is_svg_attribute('stroke-dasharray').
629		is_svg_attribute('stroke-dashoffset').
630		is_svg_attribute('stroke-linecap'). % butt (default), round, square
631		is_svg_attribute('stroke-linejoin').
632		is_svg_attribute('stroke-miterlimit').
633		is_svg_attribute(style).
634		is_svg_attribute(surfaceScale).
635		is_svg_attribute(svg_class). % virtual attribute of VisB
636		is_svg_attribute(systemLanguage).
637		is_svg_attribute(tableValues).
638		is_svg_attribute(text). % specially processed by VisB as well
639		is_svg_attribute('text-anchor'). % start | middle | end
640		is_svg_attribute('text-decoration'). % underline | line-through, ....
641		is_svg_attribute('text-rendering'). % auto | optimizeSpeed | optimizeLegibility | geometricPrecision
642		is_svg_attribute(textLength).
643		is_svg_attribute(title). % virtual attribute of VisB
644		is_svg_attribute(to).
645		is_svg_attribute(transform).
646		is_svg_attribute(type).
647		is_svg_attribute(values). % from animate
648		is_svg_attribute(visibility).
649		is_svg_attribute('vector-effect').
650		is_svg_attribute('word-spacing').
651		is_svg_attribute('xlink:href').
652		is_svg_attribute(X) :- is_svg_number_attribute(X,_).
653		is_svg_attribute(X) :- is_svg_color_attribute(X).
654		% TODO: complete
655
656		is_svg_color_attribute(color). % can be applied to any element; provides currentcolor value
657		is_svg_color_attribute(fill). % can be applied to [circle,ellipse,path,polygon,polyline,rect,text,tref,tspan]).
658		is_svg_color_attribute(stroke). % can also be applied to all shapes we use circle, ...
659		is_svg_color_attribute('flood-color').
660		is_svg_color_attribute('lighting-color').
661		is_svg_color_attribute('stop-color').
662
663		is_svg_number_attribute(cx,[circle, ellipse, radialGradient]).
664		is_svg_number_attribute(cy,[circle, ellipse, radialGradient]).
665		is_svg_number_attribute(dx,_).
666		is_svg_number_attribute(dy,_).
667		is_svg_number_attribute(opacity,_).
668		is_svg_number_attribute(pathLength,_).
669		is_svg_number_attribute(x,[foreignObject,image,pattern,rect,svg,text,tspan,use]). % many more: cursor, image, mask, ...
670		is_svg_number_attribute(y,[foreignObject,image,pattern,rect,svg,text,tspan,use]).
671		is_svg_number_attribute(x1,[line,linearGradient]).
672		is_svg_number_attribute(x2,[line,linearGradient]).
673		is_svg_number_attribute(y1,[line,linearGradient]).
674		is_svg_number_attribute(y2,[line,linearGradient]).
675		is_svg_number_attribute('font-size',_).
676		is_svg_number_attribute('stop-opacity',_).
677		is_svg_number_attribute('stroke-opacity',_).
678		is_svg_number_attribute('stroke-width',_).
679		is_svg_number_attribute(height,[foreignObject,image,pattern,rect,svg]). % others like mask ,...
680		is_svg_number_attribute(width, [foreignObject,image,pattern,rect,svg]).
681		is_svg_number_attribute(r,[circle, radialGradient]).
682		is_svg_number_attribute(rx,[ellipse,rect]).
683		is_svg_number_attribute(ry,[ellipse,rect]).
684		is_svg_number_attribute(tabindex,_).
685		is_svg_number_attribute(z,_).
686
687		is_svg_color_name(aliceblue).
688		is_svg_color_name(antiquewhite).
689		is_svg_color_name(aqua).
690		is_svg_color_name(aquamarine).
691		is_svg_color_name(azure).
692		is_svg_color_name(beige).
693		is_svg_color_name(bisque).
694		is_svg_color_name(black).
695		is_svg_color_name(blanchedalmond).
696		is_svg_color_name(blue).
697		is_svg_color_name(blueviolet).
698		is_svg_color_name(brown).
699		is_svg_color_name(burlywood).
700		is_svg_color_name(cadetblue).
701		is_svg_color_name(chartreuse).
702		is_svg_color_name(chocolate).
703		is_svg_color_name(coral).
704		is_svg_color_name(cornflowerblue).
705		is_svg_color_name(cornsilk).
706		is_svg_color_name(crimson).
707		is_svg_color_name(cyan).
708		is_svg_color_name(darkblue).
709		is_svg_color_name(darkcyan).
710		is_svg_color_name(darkgoldenrod).
711		is_svg_color_name(darkgray).
712		is_svg_color_name(darkgreen).
713		is_svg_color_name(darkgrey).
714		is_svg_color_name(darkkhaki).
715		is_svg_color_name(darkmagenta).
716		is_svg_color_name(darkolivegreen).
717		is_svg_color_name(darkorange).
718		is_svg_color_name(darkorchid).
719		is_svg_color_name(darkred).
720		is_svg_color_name(darksalmon).
721		is_svg_color_name(darkseagreen).
722		is_svg_color_name(darkslateblue).
723		is_svg_color_name(darkslategray).
724		is_svg_color_name(darkslategrey).
725		is_svg_color_name(darkturquoise).
726		is_svg_color_name(darkviolet).
727		is_svg_color_name(deeppink).
728		is_svg_color_name(deepskyblue).
729		is_svg_color_name(dimgray).
730		is_svg_color_name(dimgrey).
731		is_svg_color_name(dodgerblue).
732		is_svg_color_name(firebrick).
733		is_svg_color_name(floralwhite).
734		is_svg_color_name(forestgreen).
735		is_svg_color_name(fuchsia).
736		is_svg_color_name(gainsboro).
737		is_svg_color_name(ghostwhite).
738		is_svg_color_name(gold).
739		is_svg_color_name(goldenrod).
740		is_svg_color_name(gray).
741		is_svg_color_name(green).
742		is_svg_color_name(greenyellow).
743		is_svg_color_name(grey).
744		is_svg_color_name(honeydew).
745		is_svg_color_name(hotpink).
746		is_svg_color_name(indianred).
747		is_svg_color_name(indigo).
748		is_svg_color_name(ivory).
749		is_svg_color_name(khaki).
750		is_svg_color_name(lavender).
751		is_svg_color_name(lavenderblush).
752		is_svg_color_name(lawngreen).
753		is_svg_color_name(lemonchiffon).
754		is_svg_color_name(lightblue).
755		is_svg_color_name(lightcoral).
756		is_svg_color_name(lightcyan).
757		is_svg_color_name(lightgoldenrodyellow).
758		is_svg_color_name(lightgray).
759		is_svg_color_name(lightgreen).
760		is_svg_color_name(lightgrey).
761		is_svg_color_name(lightpink).
762		is_svg_color_name(lightsalmon).
763		is_svg_color_name(lightseagreen).
764		is_svg_color_name(lightskyblue).
765		is_svg_color_name(lightslategray).
766		is_svg_color_name(lightslategrey).
767		is_svg_color_name(lightsteelblue).
768		is_svg_color_name(lightyellow).
769		is_svg_color_name(lime).
770		is_svg_color_name(limegreen).
771		is_svg_color_name(linen).
772		is_svg_color_name(magenta).
773		is_svg_color_name(maroon).
774		is_svg_color_name(mediumaquamarine).
775		is_svg_color_name(mediumblue).
776		is_svg_color_name(mediumorchid).
777		is_svg_color_name(mediumpurple).
778		is_svg_color_name(mediumseagreen).
779		is_svg_color_name(mediumslateblue).
780		is_svg_color_name(mediumspringgreen).
781		is_svg_color_name(mediumturquoise).
782		is_svg_color_name(mediumvioletred).
783		is_svg_color_name(midnightblue).
784		is_svg_color_name(mintcream).
785		is_svg_color_name(mistyrose).
786		is_svg_color_name(moccasin).
787		is_svg_color_name(navajowhite).
788		is_svg_color_name(navy).
789		is_svg_color_name(oldlace).
790		is_svg_color_name(olive).
791		is_svg_color_name(olivedrab).
792		is_svg_color_name(orange).
793		is_svg_color_name(orangered).
794		is_svg_color_name(orchid).
795		is_svg_color_name(palegoldenrod).
796		is_svg_color_name(palegreen).
797		is_svg_color_name(paleturquoise).
798		is_svg_color_name(palevioletred).
799		is_svg_color_name(papayawhip).
800		is_svg_color_name(peachpuff).
801		is_svg_color_name(peru).
802		is_svg_color_name(pink).
803		is_svg_color_name(plum).
804		is_svg_color_name(powderblue).
805		is_svg_color_name(purple).
806		is_svg_color_name(red).
807		is_svg_color_name(rosybrown).
808		is_svg_color_name(royalblue).
809		is_svg_color_name(saddlebrown).
810		is_svg_color_name(salmon).
811		is_svg_color_name(sandybrown).
812		is_svg_color_name(seagreen).
813		is_svg_color_name(seashell).
814		is_svg_color_name(sienna).
815		is_svg_color_name(silver).
816		is_svg_color_name(skyblue).
817		is_svg_color_name(slateblue).
818		is_svg_color_name(slategray).
819		is_svg_color_name(slategrey).
820		is_svg_color_name(snow).
821		is_svg_color_name(springgreen).
822		is_svg_color_name(steelblue).
823		is_svg_color_name(tan).
824		is_svg_color_name(teal).
825		is_svg_color_name(thistle).
826		is_svg_color_name(tomato).
827		is_svg_color_name(turquoise).
828		is_svg_color_name(violet).
829		is_svg_color_name(wheat).
830		is_svg_color_name(white).
831		is_svg_color_name(whitesmoke).
832		is_svg_color_name(yellow).
833		is_svg_color_name(yellowgreen).
834
835		% ----------------------------
836
837		% DOT
838		get_all_dot_attributes(SList) :- findall(A,is_dot_attribute(A),List), sort(List,SList).
839
840		% list of known synonyms of Dot attributes and how to translate them to SVG object attributes
841		dot2svg_attribute(fillcolor,fill).
842		dot2svg_attribute(fillcolour,fill).
843		dot2svg_attribute(fontname,'font-family').
844		dot2svg_attribute(fontcolor,fill). % one should probably use fill to colour text
845		dot2svg_attribute(fontcolour,fill).
846		dot2svg_attribute('font-color',fill). % not really a dot attribute, but a
847		dot2svg_attribute('font-colour',fill).
848		dot2svg_attribute(visible,visibility). % typical error
849
850		% list of Dot shapes which are not valid SVG classes and which SVG concept they map to
851		dotshape2svg_class('Mcircle',circle).
852		dotshape2svg_class(doublecircle,circle).
853		dotshape2svg_class(egg,ellipse).
854		dotshape2svg_class(oval,ellipse).
855		dotshape2svg_class('Msquare',rect).
856		dotshape2svg_class(box,rect).
857		dotshape2svg_class(box3d,rect).
858		dotshape2svg_class(rectangle,rect).
859		dotshape2svg_class(square,rect).
860		dotshape2svg_class('Mdiamond',polygon).
861		dotshape2svg_class(diamond,polygon).
862		dotshape2svg_class(doubleoctagon,polygon).
863		dotshape2svg_class(hexagon,polygon).
864		dotshape2svg_class(house,polygon).
865		dotshape2svg_class(invhouse,polygon).
866		dotshape2svg_class(invhouse,polygon).
867		dotshape2svg_class(invtrapezium,polygon).
868		dotshape2svg_class(invtriangle,polygon).
869		dotshape2svg_class(octagon,polygon).
870		dotshape2svg_class(parallelogram,polygon).
871		dotshape2svg_class(pentagon,polygon).
872		dotshape2svg_class(septagon,polygon).
873		dotshape2svg_class(trapezium,polygon).
874		dotshape2svg_class(triangle,polygon).
875		dotshape2svg_class(tripleoctagon,polygon).
876		dotshape2svg_class(note,text).
877		dotshape2svg_class(plaintext,text).
878		dotshape2svg_class(larrow,polyline).
879		dotshape2svg_class(rarrow,polyline).
880
881
882		% see https://graphviz.org/docs/nodes/, comments taken from there
883		is_dot_attribute(area).
884		is_dot_attribute(class). % Classnames to attach to the node, edge, graph, or cluster's SVG element. For svg only.
885		is_dot_attribute(color). % Basic drawing color for graphics, not text.
886		is_dot_attribute(colorscheme). % A color scheme namespace: the context for interpreting color names.
887		is_dot_attribute(comment). % Comments are inserted into output.
888		is_dot_attribute(distortion). % Distortion factor for shape=polygon.
889		is_dot_attribute(fillcolor). % Color used to fill the background of a node or cluster.
890		is_dot_attribute(fixedsize).
891		is_dot_attribute(fontcolor). % Color used for text.
892		is_dot_attribute(fontname). % Font used for text.
893		is_dot_attribute(fontsize). % Font size, in points, used for text.
894		is_dot_attribute(gradientangle). % If a gradient fill is being used, this determines the angle of the fill.
895		is_dot_attribute(group). % Name for a group of nodes, for bundling edges avoiding crossings. For dot only.
896		is_dot_attribute(height). % Height of node, in inches.
897		is_dot_attribute(href). % Synonym for URL. For map, postscript, svg only.
898		is_dot_attribute(id). % Identifier for graph objects. For map, postscript, svg only.
899		is_dot_attribute(image).
900		is_dot_attribute(imagepos).
901		is_dot_attribute(imagescale).
902		is_dot_attribute(label). % Text label attached to objects.
903		is_dot_attribute(labelloc). % Vertical placement of labels for nodes, root graphs and clusters.
904		is_dot_attribute(layer). % Specifies layers in which the node, edge or cluster is present.
905		%is_dot_attribute(margin). % For graphs, this sets x and y margins of canvas, in inches.
906		is_dot_attribute(nojustify). % Whether to justify multiline text vs the previous text line (rather than the side of the container).
907		is_dot_attribute(ordering). % default, out, in Constrains the left-to-right ordering of node edges. For dot only.
908		is_dot_attribute(orientation).% node shape rotation angle, or graph orientation.
909		is_dot_attribute(penwidth). % Specifies the width of the pen, in points, used to draw lines and curves.
910		is_dot_attribute(peripheries). % Set number of peripheries used in polygonal shapes and cluster boundaries.
911		is_dot_attribute(pin).
912		is_dot_attribute(pos).
913		is_dot_attribute(rects).
914		is_dot_attribute(regular).
915		is_dot_attribute(root).
916		is_dot_attribute(samplepoints). % Gives the number of points used for a circle/ellipse node.
917		is_dot_attribute(shape). % Sets the shape of a node.
918		is_dot_attribute(shapefile).
919		is_dot_attribute(showboxes). % Print guide boxes for debugging. For dot only.
920		is_dot_attribute(style). % Set style information for components of the graph.
921		is_dot_attribute(skew). % Skew factor for shape=polygon.
922		is_dot_attribute(sides). % Number of sides when shape=polygon.
923		is_dot_attribute(sortv). % Sort order of graph components for ordering packmode packing.
924		is_dot_attribute(target). % If the object has a URL, this attribute determines which window of the browser is used for the URL. For map, svg only.
925		is_dot_attribute(tooltip). % Tooltip (mouse hover text) attached to the node, edge, cluster, or graph
926		is_dot_attribute('URL').
927		is_dot_attribute(vertices).
928		is_dot_attribute(width). % Width of node, in inches.
929		is_dot_attribute(xlabel). % External label for a node or edge.
930		is_dot_attribute(xlp). % Position of an exterior label, in points. For write only.
931		is_dot_attribute(z). % Z-coordinate value for 3D layouts and displays.
932
933		% additional edge attributes from https://graphviz.org/docs/edges/
934		is_dot_attribute(arrowhead). % Style of arrowhead on the head node of an edge.
935		is_dot_attribute(arrowsize). % Multiplicative scale factor for arrowheads.
936		is_dot_attribute(arrowtail). % Style of arrowhead on the tail node of an edge.
937		is_dot_attribute(constraint). % If false, the edge is not used in ranking the nodes. For dot only.
938		is_dot_attribute(decorate). % Whether to connect the edge label to the edge with a line.
939		is_dot_attribute(dir). % Edge type for drawing arrowheads. (forward, back, both, none)
940		is_dot_attribute(headlabel). % Text label to be placed near head of edge.
941		is_dot_attribute(headport). % Indicates where on the head node to attach the head of the edge.
942		is_dot_attribute(labelangle).
943		is_dot_attribute(labeldistance).
944		is_dot_attribute(labelfloat).
945		is_dot_attribute(labelfontcolor). % Color used for headlabel and taillabel.
946		is_dot_attribute(labelfontname). % Font for headlabel and taillabel.
947		is_dot_attribute(labelfontsize). % Font size of headlabel and taillabel.
948		is_dot_attribute(len).
949		is_dot_attribute(lhead). % Logical head of an edge. For dot only.
950		is_dot_attribute(minlen). % Minimum edge length (rank difference between head and tail). For dot only.
951		is_dot_attribute(taillabel). % Text label to be placed near tail of edge.
952		is_dot_attribute(tailport). % Indicates where on the tail node to attach the tail of the edge.
953		is_dot_attribute(weight). % Weight of edge. In dot, the heavier the weight, the shorter, straighter and more vertical the edge is.
954
955		% for graphs:
956		is_dot_attribute(bgcolor).
957		% https://graphviz.org/doc/info/colors.html#brewer
958		% ex: accent8, blue9, brbg11, bugn9, bupu9, dark28, gnbu9, greeens9, greys9, oranges9, set312, set39, spectral11
959		% does not work as graph attribute, needs to be set as default node/edge attribute or added to nodes/edges
960		is_dot_attribute(compound). % If true, allow edges between clusters. For dot only, relevant for lhead/ltail edge attrs
961		is_dot_attribute(concentrate). % If true, use edge concentrators.
962		is_dot_attribute(landscape). % If true, the graph is rendered in landscape mode.
963		is_dot_attribute(layout). % Which layout engine to use. dot, neato, circo, fdp, sfdp, twopi, patchwork, nop, nop2
964		is_dot_attribute(mode). % Technique for optimizing the layout
965		%is_dot_attribute(ordering). % declared for nodes above, Constrains the left-to-right ordering of node edges. For dot only. out, in
966		%is_dot_attribute(orientation). % declared for nodes above, node shape rotation angle, or graph orientation
967		is_dot_attribute(outputorder). % Specify order in which nodes and edges are drawn
968		is_dot_attribute(overlap). % Determines if and how node overlaps should be removed
969		is_dot_attribute(rankdir). % Sets direction of graph layout. For dot only. TB, BT, LR, RL
970		is_dot_attribute(ranksep). % Specifies separation between ranks. For dot, twopi only.
971		is_dot_attribute(ratio). % Sets the aspect ratio (drawing height/drawing width) for the drawing.
972		is_dot_attribute(scale). % Scales layout by the given factor after the initial layout
973		is_dot_attribute(size). % Maximum width and height of drawing, in inches
974		is_dot_attribute(splines).
975
976		is_dot_attribute(directed). % virtual attribute -> influences whether dot_graph_generator writes digraph or graph
977		is_dot_attribute(strict). % virtual attribute -> influences whether dot_graph_generator writes strict digraph/graph
978
979		% -------------
980
981
982		% HTML tags can e.g. appear as children of foreign_objects in SVG
983		is_html_tag(a).
984		is_html_tag(abbr).
985		is_html_tag(acronym).
986		is_html_tag(address).
987		is_html_tag(applet).
988		is_html_tag(area).
989		is_html_tag(article).
990		is_html_tag(aside).
991		is_html_tag(audio).
992		is_html_tag(b). % bold
993		is_html_tag(base).
994		is_html_tag(basefont).
995		is_html_tag(bdi).
996		is_html_tag(bdo).
997		is_html_tag(big).
998		is_html_tag(blockquote).
999		is_html_tag(body).
1000		is_html_tag(br).
1001		is_html_tag(button). % clickable button
1002		is_html_tag(canvas).
1003		is_html_tag(caption).
1004		is_html_tag(center).
1005		is_html_tag(cite).
1006		is_html_tag(code).
1007		is_html_tag(col).
1008		is_html_tag(colgroup).
1009		is_html_tag(data).
1010		is_html_tag(datalist).
1011		is_html_tag(dd).
1012		is_html_tag(del). % deleted text
1013		is_html_tag(details).
1014		is_html_tag(dialog). % dialog or window
1015		is_html_tag(div).
1016		is_html_tag(dfn).
1017		is_html_tag(dl). % description list
1018		is_html_tag(dt).
1019		is_html_tag(em).
1020		is_html_tag(embed).
1021		is_html_tag(fieldset).
1022		is_html_tag(figcaption).
1023		is_html_tag(figure).
1024		is_html_tag(font).
1025		is_html_tag(footer).
1026		is_html_tag(form).
1027		is_html_tag(frame).
1028		is_html_tag(frameset).
1029		is_html_tag(h1).
1030		is_html_tag(h2).
1031		is_html_tag(h3).
1032		is_html_tag(h4).
1033		is_html_tag(h5).
1034		is_html_tag(h6).
1035		is_html_tag(head).
1036		is_html_tag(header).
1037		is_html_tag(hgroup).
1038		is_html_tag(hr). % horizontal rule
1039		is_html_tag(i). % italic
1040		is_html_tag(html).
1041		is_html_tag(iframe).
1042		is_html_tag(img).
1043		is_html_tag(input). % input field
1044		is_html_tag(ins). % inserted text
1045		is_html_tag(kbd). % keyboard input
1046		is_html_tag(label).
1047		is_html_tag(legend).
1048		is_html_tag(li).
1049		is_html_tag(link).
1050		is_html_tag(main).
1051		is_html_tag(map).
1052		is_html_tag(mark). % highlight text
1053		is_html_tag(meta).
1054		is_html_tag(metre). % shows scalar measurement within a range
1055		is_html_tag(nav).
1056		is_html_tag(noframes).
1057		is_html_tag(noscript).
1058		is_html_tag(object).
1059		is_html_tag(ol). % ordered list
1060		is_html_tag(optgroup).
1061		is_html_tag(option). % option in a select list
1062		is_html_tag(output).
1063		is_html_tag(p).
1064		is_html_tag(param).
1065		is_html_tag(picture).
1066		is_html_tag(pre).
1067		is_html_tag(progress). % shows completion progress of a task
1068		is_html_tag(q).
1069		is_html_tag(rp).
1070		is_html_tag(rt).
1071		is_html_tag(ruby).
1072		is_html_tag(s). % strikethrough
1073		is_html_tag(samp). % sample output
1074		is_html_tag(script).
1075		is_html_tag(section).
1076		is_html_tag(select). % dropdown list
1077		is_html_tag(small).
1078		is_html_tag(source).
1079		is_html_tag(span).
1080		is_html_tag(strike).
1081		is_html_tag(strong).
1082		is_html_tag(style).
1083		is_html_tag(summary).
1084		is_html_tag(sub). % subscript
1085		is_html_tag(sup). % superscript
1086		is_html_tag(svg).
1087		is_html_tag(table).
1088		is_html_tag(tbody).
1089		is_html_tag(td). % table data
1090		is_html_tag(template).
1091		is_html_tag(textarea). % multiline text input
1092		is_html_tag(tfoot).
1093		is_html_tag(th). % table header
1094		is_html_tag(thead).
1095		is_html_tag(time). % shows specific period in time or a range of time
1096		is_html_tag(title).
1097		is_html_tag(tr). % table row
1098		is_html_tag(track).
1099		is_html_tag(tt). % not supported in HTML 5
1100		is_html_tag(u). % underline
1101		is_html_tag(ul). % unordered list
1102		is_html_tag(var). % variables
1103		is_html_tag(video).
1104		is_html_tag(wbr).
1105
1106		% completely incomplete list :
1107		is_html_attribute(accesskey).
1108		is_html_attribute(class).
1109		is_html_attribute(contenteditable).
1110		is_html_attribute(contextmenu).
1111		is_html_attribute(dir).
1112		is_html_attribute(disabled). % for option,...
1113		is_html_attribute(draggable).
1114		is_html_attribute(enterkeyhing).
1115		is_html_attribute(hidden).
1116		is_html_attribute(href).
1117		is_html_attribute(id).
1118		is_html_attribute(inert).
1119		is_html_attribute(inputmode).
1120		is_html_attribute(label). % for option,...
1121		is_html_attribute(lang).
1122		is_html_attribute(media).
1123		is_html_attribute(onchange). % for Event attribute, e.g., for select
1124		is_html_attribute(onerror).
1125		is_html_attribute(onhaschange).
1126		is_html_attribute(onload).
1127		is_html_attribute(onmessage).
1128		is_html_attribute(popover).
1129		is_html_attribute(rel).
1130		is_html_attribute(selected). % for option,...
1131		is_html_attribute(spellcheck).
1132		is_html_attribute(style).
1133		is_html_attribute(tabindex).
1134		is_html_attribute(target). % for a
1135		is_html_attribute(title).
1136		is_html_attribute(translate).
1137		is_html_attribute(type). % for a
1138		is_html_attribute(value). % for option,...
1139
1140		% -------------
1141
1142		% some errors one could make, with a possible corrected id/keyword:
1143
1144		%suggested_alternative_id('RGAUSS','RNORMAL').
1145		%suggested_alternative_id('GAUSS','RNORMAL').
1146
1147		% -------------
1148
1149
1150		% translate_keywords:classical_b_keyword(K), \+ tools_matching:keyword(K,_,_). % Note: items is not a B keyword
1151		% TO DO: complete keywords for Alloy, TLA, Z minor modes; possibly add VisB/SVG and CUSTOM_GRAPH/GraphViz attributes
1152
1153		:- use_module(preferences,[eclipse_preference/2]).
1154		get_possible_preferences(SPrefs) :-
1155		findall(Pref,eclipse_preference(Pref,_),P),
1156		sort(P,SPrefs).
1157
1158		get_possible_preferences_matches_msg(String,FuzzyMatchMsg) :-
1159		get_possible_preferences(Prefs),
1160		if(get_possible_fuzzy_matches_and_completions_msg(String,Prefs,FuzzyMatchMsg),
1161		true,
1162		get_possible_inner_matches_msg(String,Prefs,FuzzyMatchMsg)). % also look for inner matches
1163
1164		:- use_module(specfile,[get_possible_language_specific_top_level_event/3]).
1165		:- use_module(bmachine,[b_is_operation_name/1, b_get_machine_operation/4]).
1166		get_possible_top_level_event_matches_msg(String,FuzzyMatchMsg) :-
1167		findall(Op,get_possible_language_specific_top_level_event(Op,_,_),Ops), sort(Ops,SOps),
1168		if(get_possible_fuzzy_matches_and_completions_msg(String,SOps,FuzzyMatchMsg),
1169		true,
1170		get_possible_inner_matches_msg(String,SOps,FuzzyMatchMsg)). % also look for inner matches
1171
1172		% also matches subsidiary (not top-level) operations
1173		get_possible_operation_matches_msg(OpName,FuzzyMatchMsg) :-
1174		findall(Name,b_get_machine_operation(Name,_Results,_Parameters,_),Ops), sort(Ops,SOps),
1175		if(get_possible_fuzzy_matches_and_completions_msg(OpName,SOps,FuzzyMatchMsg),
1176		true,
1177		if(get_possible_inner_matches_msg(OpName,SOps,FuzzyMatchMsg,no_norm,suffix_only), % first look for stricter matches
1178		true,
1179		get_possible_inner_matches_msg(OpName,SOps,FuzzyMatchMsg))).
1180
1181		get_possible_fuzzy_matches_and_completions_msg(String,AllIds,FuzzyMatchMsg) :-
1182		(get_possible_fuzzy_matches_msg(String,AllIds,FuzzyMatchMsg) ;
1183		get_possible_completions_msg(String,AllIds,FuzzyMatchMsg)).
1184
1185		get_possible_fuzzy_matches(ID,AllIDs,FuzzyMatches) :- atom(ID),!,
1186		atom_codes(ID,IDCodes),
1187		findall(Target,(member(Target,AllIDs),atom_codes(Target,TargetCodes),
1188		fuzzy_match_codes_lower_case(IDCodes,TargetCodes)),FuzzyMatches).
1189		get_possible_fuzzy_matches(ID,_,_) :-
1190		add_internal_error('Not an atom: ',get_possible_fuzzy_matches(ID,_,_)),fail.
1191
1192		% get possible matches as atom which can be used after phrase: Did you mean:
1193		get_possible_fuzzy_matches_msg(ID,AllIDs,Msg) :-
1194		get_possible_fuzzy_matches(ID,AllIDs,FuzzyMatches),
1195		get_match_msg(FuzzyMatches,Msg).
1196
1197		get_match_msg(FuzzyMatches,Msg) :-
1198		length(FuzzyMatches,Nr), Nr>0,
1199		get_msg(FuzzyMatches,Nr,Msg).
1200
1201		:- use_module(tools_strings,[ajoin/2,ajoin_with_sep/3]).
1202		get_msg([Match],1,Res) :- !, Res=Match.
1203		get_msg(List,Nr,Msg) :- Nr < 6, !,
1204		ajoin_with_sep(List,',',Msg).
1205		get_msg([First|_],Nr,Msg) :- N1 is Nr-1,
1206		ajoin([First,' (',N1,' more matches)'],Msg).
1207
1208
1209
1210		% get possible completions as atom which can be used after phrase: Did you mean:
1211		get_possible_completions_msg(ID,SortedAllIDs,Msg) :-
1212		atom_codes(ID,IDCodes0),
1213		codes_to_lower_case(IDCodes0,IDCodes),
1214		findall(Target,(member(Target,SortedAllIDs),atom_codes(Target,TargetCodes),
1215		codes_to_lower_case(TargetCodes,TC2),
1216		prefix(TC2,IDCodes) % IDCodes is a prefix of the target
1217		),Completions),
1218		get_match_msg(Completions,Msg).
1219
1220
1221		% get possible interior matches as atom which can be used after phrase: Did you mean:
1222		get_possible_inner_matches_msg(ID,SortedAllIDs,Msg) :-
1223		get_possible_inner_matches_msg(ID,SortedAllIDs,Msg,lower_case_norm,all).
1224
1225		% if LC=lower_case_norm we normalise target and source to lower_case before matching
1226		get_possible_inner_matches_msg(ID,SortedAllIDs,Msg,LC,SuffixOnly) :-
1227		atom_codes(ID,IDCodes0),
1228		length(IDCodes0,Len), Len>3, % only do this if the string is long enough
1229		(LC=lower_case_norm -> codes_to_lower_case(IDCodes0,IDCodes) ; IDCodes=IDCodes0),
1230		findall(Target,(member(Target,SortedAllIDs),atom_codes(Target,TargetCodes),
1231		(LC=lower_case_norm -> codes_to_lower_case(TargetCodes,TC2) ; TC2=TargetCodes),
1232		% format('Looking for ~s inside ~s or vice-versa~n',[IDCodes,TC2]),
1233		(SuffixOnly \= suffix_only,
1234		sublist(IDCodes,TC2,_Before,_,_) -> true % Target TC2 is a sublist of ID
1235		; (SuffixOnly=suffix_only -> AfterLength=0 ; true),
1236		sublist(TC2,IDCodes,_Bef,_Len,AfterLength) % ID is a sublist of the target
1237		)
1238		),Completions),
1239		get_match_msg(Completions,Msg).
1240
1241