| 1 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 2 | % |
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| 3 | % Logtalk - Object oriented extension to Prolog |
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| 4 | % Release 2.21.5 |
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| 5 | % |
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| 6 | % configuration file for ECLiPSe 5.5 and later versions |
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| 7 | % |
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| 8 | % last updated: October 30, 2004 |
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| 9 | % |
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| 10 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 11 | |
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| 12 | |
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| 13 | :- pragma(system). |
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| 14 | :- pragma(nodebug). |
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| 15 | |
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| 16 | |
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| 17 | |
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| 18 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 19 | % |
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| 20 | % ISO Prolog Standard predicates that we must define because they are |
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| 21 | % not built-in |
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| 22 | % |
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| 23 | % add a clause for lgt_iso_predicate/1 declaring each ISO predicate that |
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| 24 | % we must define; there must be at least one clause for this predicate |
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| 25 | % whose call should fail if we don't define any ISO predicates |
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| 26 | % |
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| 27 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 28 | |
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| 29 | |
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| 30 | :- dynamic(lgt_exception_/1). |
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| 31 | |
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| 32 | |
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| 33 | initialization(Goal) :- |
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| 34 | call(Goal). |
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| 35 | |
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| 36 | |
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| 37 | % '$lgt_iso_predicate'(?callable). |
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| 38 | |
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| 39 | '$lgt_iso_predicate'(assertz(_)). |
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| 40 | '$lgt_iso_predicate'(atom_codes(_, _)). |
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| 41 | '$lgt_iso_predicate'(atom_concat(_, _, _)). |
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| 42 | '$lgt_iso_predicate'(catch(_, _, _)). |
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| 43 | '$lgt_iso_predicate'(current_input(_)). |
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| 44 | '$lgt_iso_predicate'(current_output(_)). |
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| 45 | '$lgt_iso_predicate'(number_codes(_, _)). |
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| 46 | '$lgt_iso_predicate'(throw(_)). |
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| 47 | '$lgt_iso_predicate'(unify_with_occurs_check(_, _)). |
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| 48 | |
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| 49 | |
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| 50 | assertz(Clause) :- |
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| 51 | assert(Clause). |
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| 52 | |
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| 53 | |
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| 54 | atom_codes(Atom, List) :- |
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| 55 | var(Atom), |
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| 56 | string_list(String, List), |
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| 57 | atom_string(Atom, String). |
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| 58 | |
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| 59 | atom_codes(Atom, List) :- |
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| 60 | nonvar(Atom), |
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| 61 | atom_string(Atom, String), |
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| 62 | string_list(String, List). |
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| 63 | |
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| 64 | |
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| 65 | atom_concat(Atom1, Atom2, Atom3) :- |
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| 66 | nonvar(Atom1), nonvar(Atom2), |
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| 67 | !, |
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| 68 | concat_atoms(Atom1, Atom2, Atom3). |
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| 69 | |
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| 70 | atom_concat(Atom1, Atom2, Atom3) :- |
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| 71 | nonvar(Atom3), |
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| 72 | name(Atom3, Codes3), |
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| 73 | '$lgt_append'(Codes1, Codes2, Codes3), |
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| 74 | name(Atom1, Codes1), |
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| 75 | name(Atom2, Codes2). |
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| 76 | |
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| 77 | |
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| 78 | catch(Goal, Catcher, Recovery) :- |
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| 79 | block(Goal, Tag, lgt_catch_recovery(Tag, Catcher, Recovery)). |
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| 80 | |
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| 81 | |
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| 82 | lgt_catch_recovery(Tag, Catcher, Recovery) :- |
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| 83 | Tag = lgt_error -> |
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| 84 | retract(lgt_exception_(Ball)), |
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| 85 | !, |
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| 86 | (Catcher = Ball -> |
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| 87 | call(Recovery) |
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| 88 | ; |
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| 89 | exit_block(Tag)) |
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| 90 | ; |
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| 91 | exit_block(Tag). |
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| 92 | |
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| 93 | |
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| 94 | lgt_uncatched_exception :- |
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| 95 | (retract(lgt_exception_(Ball)) -> |
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| 96 | writeq(Ball), nl |
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| 97 | ; |
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| 98 | write('uncatched exception'), nl), |
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| 99 | abort. |
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| 100 | |
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| 101 | |
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| 102 | :- set_error_handler(230, lgt_uncatched_exception/0). |
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| 103 | |
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| 104 | |
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| 105 | current_input(Stream) :- |
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| 106 | get_stream(input, Stream). |
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| 107 | |
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| 108 | |
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| 109 | current_output(Stream) :- |
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| 110 | get_stream(output, Stream). |
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| 111 | |
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| 112 | |
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| 113 | number_codes(Number, Codes) :- |
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| 114 | var(Number), |
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| 115 | string_list(String, Codes), |
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| 116 | number_string(Number, String). |
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| 117 | |
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| 118 | number_codes(Number, Codes) :- |
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| 119 | nonvar(Number), |
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| 120 | number_string(Number, String), |
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| 121 | string_list(String, Codes). |
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| 122 | |
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| 123 | |
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| 124 | throw(Ball) :- |
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| 125 | asserta(lgt_exception_(Ball)), |
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| 126 | exit_block(lgt_error). |
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| 127 | |
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| 128 | |
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| 129 | :- set_flag(occur_check, on). |
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| 130 | unify_with_occurs_check(X, X). |
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| 131 | :- set_flag(occur_check, off). |
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| 132 | |
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| 133 | |
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| 134 | |
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| 135 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 136 | % |
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| 137 | % predicate properties |
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| 138 | % |
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| 139 | % this predicate must return at least static, dynamic, and built_in |
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| 140 | % properties for an existing predicate |
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| 141 | % |
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| 142 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 143 | |
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| 144 | |
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| 145 | % '$lgt_predicate_property'(+callable, ?predicate_property) |
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| 146 | |
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| 147 | '$lgt_predicate_property'(Predicate, built_in) :- |
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| 148 | functor(Predicate, Functor, Arity), |
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| 149 | current_built_in(Functor/Arity). |
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| 150 | |
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| 151 | '$lgt_predicate_property'(Predicate, dynamic) :- |
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| 152 | functor(Predicate, Functor, Arity), |
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| 153 | current_predicate(Functor/Arity), |
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| 154 | is_dynamic(Functor/Arity). |
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| 155 | |
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| 156 | '$lgt_predicate_property'(Predicate, static) :- |
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| 157 | functor(Predicate, Functor, Arity), |
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| 158 | current_built_in(Functor/Arity). |
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| 159 | |
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| 160 | '$lgt_predicate_property'(Predicate, static) :- |
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| 161 | functor(Predicate, Functor, Arity), |
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| 162 | current_predicate(Functor/Arity), |
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| 163 | \+ is_dynamic(Functor/Arity). |
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| 164 | |
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| 165 | |
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| 166 | |
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| 167 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 168 | % |
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| 169 | % metapredicates |
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| 170 | % |
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| 171 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 172 | |
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| 173 | |
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| 174 | % forall(+callable, +callble) |
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| 175 | |
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| 176 | forall(Generate, Test) :- |
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| 177 | \+ call((Generate, \+ call(Test))). |
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| 178 | |
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| 179 | |
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| 180 | % retractall(+callable) |
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| 181 | |
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| 182 | retractall(Head) :- |
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| 183 | retract_all(Head). |
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| 184 | |
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| 185 | |
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| 186 | % lgt_call/2-8 |
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| 187 | % |
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| 188 | % use these definitions only if your compiler does |
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| 189 | % not provide call/1-8 as built-in predicates |
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| 190 | |
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| 191 | '$lgt_call'(F, A) :- |
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| 192 | Call =.. [F, A], |
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| 193 | call(Call). |
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| 194 | |
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| 195 | |
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| 196 | '$lgt_call'(F, A1, A2) :- |
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| 197 | Call =.. [F, A1, A2], |
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| 198 | call(Call). |
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| 199 | |
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| 200 | |
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| 201 | '$lgt_call'(F, A1, A2, A3) :- |
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| 202 | Call =.. [F, A1, A2, A3], |
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| 203 | call(Call). |
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| 204 | |
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| 205 | |
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| 206 | '$lgt_call'(F, A1, A2, A3, A4) :- |
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| 207 | Call =.. [F, A1, A2, A3, A4], |
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| 208 | call(Call). |
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| 209 | |
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| 210 | |
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| 211 | '$lgt_call'(F, A1, A2, A3, A4, A5) :- |
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| 212 | Call =.. [F, A1, A2, A3, A4, A5], |
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| 213 | call(Call). |
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| 214 | |
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| 215 | |
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| 216 | '$lgt_call'(F, A1, A2, A3, A4, A5, A6) :- |
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| 217 | Call =.. [F, A1, A2, A3, A4, A5, A6], |
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| 218 | call(Call). |
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| 219 | |
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| 220 | |
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| 221 | '$lgt_call'(F, A1, A2, A3, A4, A5, A6, A7) :- |
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| 222 | Call =.. [F, A1, A2, A3, A4, A5, A6, A7], |
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| 223 | call(Call). |
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| 224 | |
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| 225 | |
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| 226 | % lgt_once/2-8 |
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| 227 | % |
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| 228 | % if your compiler provides call/1-8 as built-in |
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| 229 | % predicates rewrite these definitions using call(...), !. |
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| 230 | |
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| 231 | '$lgt_once'(F, A) :- |
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| 232 | Call =.. [F, A], |
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| 233 | once(Call). |
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| 234 | |
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| 235 | |
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| 236 | '$lgt_once'(F, A1, A2) :- |
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| 237 | Call =.. [F, A1, A2], |
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| 238 | once(Call). |
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| 239 | |
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| 240 | |
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| 241 | '$lgt_once'(F, A1, A2, A3) :- |
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| 242 | Call =.. [F, A1, A2, A3], |
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| 243 | once(Call). |
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| 244 | |
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| 245 | |
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| 246 | '$lgt_once'(F, A1, A2, A3, A4) :- |
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| 247 | Call =.. [F, A1, A2, A3, A4], |
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| 248 | once(Call). |
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| 249 | |
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| 250 | |
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| 251 | '$lgt_once'(F, A1, A2, A3, A4, A5) :- |
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| 252 | Call =.. [F, A1, A2, A3, A4, A5], |
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| 253 | once(Call). |
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| 254 | |
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| 255 | |
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| 256 | '$lgt_once'(F, A1, A2, A3, A4, A5, A6) :- |
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| 257 | Call =.. [F, A1, A2, A3, A4, A5, A6], |
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| 258 | once(Call). |
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| 259 | |
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| 260 | |
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| 261 | '$lgt_once'(F, A1, A2, A3, A4, A5, A6, A7) :- |
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| 262 | Call =.. [F, A1, A2, A3, A4, A5, A6, A7], |
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| 263 | once(Call). |
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| 264 | |
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| 265 | |
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| 266 | |
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| 267 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 268 | % |
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| 269 | % Prolog built-in metapredicates |
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| 270 | % |
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| 271 | % (excluding ISO Prolog Standard metapredicates) |
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| 272 | % |
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| 273 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 274 | |
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| 275 | |
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| 276 | % '$lgt_pl_metapredicate'(?callable). |
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| 277 | |
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| 278 | '$lgt_pl_metapredicate'(block(::, *, ::)). |
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| 279 | '$lgt_pl_metapredicate'(call_priority(::, *)). |
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| 280 | '$lgt_pl_metapredicate'(coverof(*, ::, *)). |
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| 281 | '$lgt_pl_metapredicate'(make_suspension(::, *, *)). |
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| 282 | '$lgt_pl_metapredicate'(mutex(*, ::)). |
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| 283 | '$lgt_pl_metapredicate'(suspend(::, *, *)). |
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| 284 | '$lgt_pl_metapredicate'(suspend(::, *, *, *)). |
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| 285 | |
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| 286 | |
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| 287 | |
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| 288 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 289 | % |
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| 290 | % file extension predicates |
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| 291 | % |
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| 292 | % these extensions are used by Logtalk load/compile predicates |
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| 293 | % |
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| 294 | % you may want to change the extension for Prolog files to match |
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| 295 | % the one expected by your Prolog compiler |
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| 296 | % |
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| 297 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 298 | |
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| 299 | |
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| 300 | % '$lgt_file_extension'(?atom, ?atom) |
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| 301 | |
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| 302 | '$lgt_file_extension'(metafile, '.mlgt'). |
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| 303 | '$lgt_file_extension'(logtalk, '.lgt'). |
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| 304 | '$lgt_file_extension'(prolog, '.pl'). |
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| 305 | '$lgt_file_extension'(xml, '.xml'). |
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| 306 | |
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| 307 | |
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| 308 | |
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| 309 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 310 | % |
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| 311 | % default flag values |
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| 312 | % |
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| 313 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 314 | |
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| 315 | |
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| 316 | % '$lgt_default_flag'(?atom, ?atom) |
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| 317 | % |
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| 318 | % default values for all flags |
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| 319 | |
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| 320 | '$lgt_default_flag'(iso_initialization_dir, false). |
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| 321 | |
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| 322 | '$lgt_default_flag'(xml, on). |
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| 323 | '$lgt_default_flag'(xsl, 'lgtxml.xsl'). |
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| 324 | '$lgt_default_flag'(xmlspec, dtd). |
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| 325 | '$lgt_default_flag'(doctype, local). |
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| 326 | |
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| 327 | '$lgt_default_flag'(unknown, warning). |
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| 328 | '$lgt_default_flag'(misspelt, warning). |
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| 329 | '$lgt_default_flag'(singletons, warning). |
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| 330 | '$lgt_default_flag'(lgtredef, warning). |
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| 331 | '$lgt_default_flag'(plredef, silent). |
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| 332 | '$lgt_default_flag'(portability, silent). |
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| 333 | |
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| 334 | '$lgt_default_flag'(report, on). |
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| 335 | |
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| 336 | '$lgt_default_flag'(smart_compilation, off). |
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| 337 | |
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| 338 | '$lgt_default_flag'(startup_message, flags). |
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| 339 | |
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| 340 | '$lgt_default_flag'(underscore_vars, singletons). |
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| 341 | |
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| 342 | '$lgt_default_flag'(code_prefix, ''). |
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| 343 | |
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| 344 | '$lgt_default_flag'(debug, off). |
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| 345 | '$lgt_default_flag'(supports_break_predicate, true). |
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| 346 | |
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| 347 | '$lgt_default_flag'(events, on). |
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| 348 | |
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| 349 | |
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| 350 | |
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| 351 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 352 | % |
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| 353 | % list predicates |
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| 354 | % |
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| 355 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 356 | |
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| 357 | |
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| 358 | '$lgt_append'([], List, List). |
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| 359 | '$lgt_append'([Head| Tail], List, [Head| Tail2]) :- |
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| 360 | '$lgt_append'(Tail, List, Tail2). |
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| 361 | |
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| 362 | |
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| 363 | '$lgt_member'(Head, [Head| _]). |
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| 364 | '$lgt_member'(Head, [_| Tail]) :- |
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| 365 | '$lgt_member'(Head, Tail). |
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| 366 | |
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| 367 | |
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| 368 | '$lgt_member_var'(V, [H| _]) :- |
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| 369 | V == H. |
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| 370 | '$lgt_member_var'(V, [_| T]) :- |
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| 371 | '$lgt_member_var'(V, T). |
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| 372 | |
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| 373 | |
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| 374 | '$lgt_proper_list'([]). |
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| 375 | '$lgt_proper_list'([_| List]) :- |
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| 376 | '$lgt_proper_list'(List). |
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| 377 | |
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| 378 | |
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| 379 | '$lgt_reverse'(List, Reversed) :- |
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| 380 | '$lgt_reverse'(List, [], Reversed, Reversed). |
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| 381 | |
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| 382 | '$lgt_reverse'([], Reversed, Reversed, []). |
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| 383 | '$lgt_reverse'([Head| Tail], List, Reversed, [_| Bound]) :- |
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| 384 | '$lgt_reverse'(Tail, [Head| List], Reversed, Bound). |
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| 385 | |
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| 386 | |
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| 387 | |
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| 388 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 389 | % |
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| 390 | % file predicates |
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| 391 | % |
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| 392 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 393 | |
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| 394 | |
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| 395 | % '$lgt_file_exists'(+atom) |
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| 396 | % |
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| 397 | % see if a file exist in the current directory |
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| 398 | |
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| 399 | '$lgt_file_exists'(File) :- |
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| 400 | exists(File). |
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| 401 | |
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| 402 | |
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| 403 | % '$lgt_load_prolog_code'(+atom) |
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| 404 | % |
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| 405 | % compile and load a Prolog file |
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| 406 | |
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| 407 | '$lgt_load_prolog_code'(File) :- |
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| 408 | get_flag(debug_compile, Current), |
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| 409 | set_flag(debug_compile, off), |
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| 410 | compile(File), |
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| 411 | set_flag(debug_compile, Current). |
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| 412 | |
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| 413 | |
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| 414 | % '$lgt_compare_file_mtimes'(?atom, +atom, +atom) |
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| 415 | % |
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| 416 | % compare file modification times |
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| 417 | |
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| 418 | '$lgt_compare_file_mtimes'(Result, File1, File2) :- |
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| 419 | get_file_info(File1, mtime, Time1), |
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| 420 | get_file_info(File2, mtime, Time2), |
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| 421 | compare(Result, Time1, Time2). |
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| 422 | |
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| 423 | |
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| 424 | |
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| 425 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 426 | % |
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| 427 | % sorting predicates |
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| 428 | % |
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| 429 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 430 | |
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| 431 | |
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| 432 | % '$lgt_keysort'(+list, -list) |
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| 433 | |
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| 434 | '$lgt_keysort'(List, Sorted) :- |
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| 435 | keysort(List, Sorted). |
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| 436 | |
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| 437 | |
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| 438 | % '$lgt_sort'(+list, -list) |
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| 439 | |
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| 440 | '$lgt_sort'(List, Sorted) :- |
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| 441 | sort(List, Sorted). |
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| 442 | |
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| 443 | |
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| 444 | |
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| 445 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 446 | % |
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| 447 | % time and date predicates |
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| 448 | % |
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| 449 | % if your Prolog compiler does not provide access to the operating system |
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| 450 | % time and date just write dummy definitions |
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| 451 | % |
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| 452 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 453 | |
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| 454 | |
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| 455 | :- use_module(library(calendar)). |
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| 456 | |
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| 457 | |
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| 458 | % '$lgt_current_date'(?Year, ?Month, ?Day) |
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| 459 | |
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| 460 | '$lgt_current_date'(Year, Month, Day) :- |
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| 461 | mjd_now(MJD), |
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| 462 | mjd_to_date(MJD, Day/Month/Year). |
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| 463 | |
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| 464 | |
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| 465 | % '$lgt_current_time'(?Hours, ?Mins, ?Secs) |
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| 466 | |
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| 467 | '$lgt_current_time'(Hours, Mins, Secs) :- |
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| 468 | mjd_now(MJD), |
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| 469 | mjd_to_time(MJD, Hours:Mins:Secs). |
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| 470 | |
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| 471 | |
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| 472 | |
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| 473 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 474 | % |
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| 475 | % timing predicate |
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| 476 | % |
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| 477 | % if your Prolog compiler does not provide access to a timing predicate |
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| 478 | % just write dummy definition |
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| 479 | % |
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| 480 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 481 | |
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| 482 | |
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| 483 | % '$lgt_cpu_time'(-Seconds) |
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| 484 | |
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| 485 | '$lgt_cpu_time'(Seconds) :- |
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| 486 | cputime(Seconds). |
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| 487 | |
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| 488 | |
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| 489 | |
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| 490 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 491 | % |
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| 492 | % comparison predicate |
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| 493 | % |
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| 494 | % the usual compare/3 definition |
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| 495 | % |
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| 496 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 497 | |
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| 498 | |
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| 499 | % compare(?atom, @term, @term) -- built-in |
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| 500 | |
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| 501 | |
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| 502 | |
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| 503 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 504 | % |
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| 505 | % callable predicate |
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| 506 | % |
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| 507 | % the usual callable/1 definition |
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| 508 | % |
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| 509 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 510 | |
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| 511 | |
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| 512 | % callable(@term) |
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| 513 | |
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| 514 | callable(Term) :- |
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| 515 | once((atom(Term); compound(Term))). |
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| 516 | |
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| 517 | |
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| 518 | |
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| 519 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 520 | % |
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| 521 | % read character predicate |
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| 522 | % |
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| 523 | % read a single character echoing it and writing a newline after |
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| 524 | % |
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| 525 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 526 | |
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| 527 | |
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| 528 | '$lgt_read_single_char'(Char) :- |
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| 529 | flush(user), tyi(Code), put(Code), nl, char_code(Char, Code). |
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| 530 | |
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| 531 | |
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| 532 | |
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| 533 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 534 | % |
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| 535 | % pretty print a term by naming its free variables |
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| 536 | % (avoid instantiating variables in term by using double negation if necessary) |
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| 537 | % |
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| 538 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 539 | |
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| 540 | |
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| 541 | '$lgt_pretty_print_vars'(Stream, Term) :- |
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| 542 | write_term(Stream, Term, [numbervars(true)]). |
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| 543 | |
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| 544 | |
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| 545 | '$lgt_pretty_print_vars_quoted'(Stream, Term) :- |
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| 546 | write_term(Stream, Term, [numbervars(true), quoted(true)]). |
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| 547 | |
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| 548 | |
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| 549 | |
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| 550 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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| 551 | % |
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| 552 | % end! |
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| 553 | % |
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| 554 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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