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1 /*
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2 Copyright (C) 1988,2005, Shinji Kono
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3 Everyone is permitted to copy and distribute verbatim copies
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4 of this license, but changing it is not allowed. You can also
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5 use this wording to make the terms for other programs.
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6
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7 send your comments to kono@ie.u-ryukyu.ac.jp
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8 */
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9
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10 /*
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11
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12 Tokio compiler to prolog
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13 Thu Aug 15 12:17:04 JST 1985
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14 Fri Jan 10 16:11:31 JST 1986
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15 Fri Sep 5 09:51:36 JST 1986 for 1.2a
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16 Thu Mar 26 16:19:10 JST 1987
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17 Wed Oct 14 13:35:54 JST 1987 full time F
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18 Fri Oct 16 11:28:26 JST 1987 Sicstus
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19 $Header$
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20 compiler main routine
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21 */
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22
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23 com(X) :- reset_macro,tokiocompile(X).
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24 com(X,Y) :- reset_macro,tokiocompile(X, Y),
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25 (Y = user,!;reconsult(Y)).
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26
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27 tokiocompile(S) :-
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28 tokiocompile(S, '#temp.tokio'),
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29 % reconsult('#temp.tokio').
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30 compile0('#temp.tokio').
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31
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32 tokiocompile(S, O) :-
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33 cputime(Time),
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34 init_tokiocomp,
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35 tell(O),
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36 tokiocomp(S, [], _L), told,
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37 cputime(Time1),Time0 is Time1-Time,
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38 c_error((write('END '), nl, write(Time0), write(' sec.'),nl)).
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39
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40 init_tokiocomp :- recorded('$uskel', _X, R), erase(R), fail.
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41 init_tokiocomp :- recorded('$mnum', _X, R), erase(R), fail.
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42 init_tokiocomp.
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43
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44 tokiocomp([], L, L) :- !.
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45 tokiocomp([H|T], L0, L) :- !, tokiocomp(H, L0, L1), tokiocomp(T, L1, L).
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46 tokiocomp(F, _L0, _L) :-
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47 seeing(O), nofileerrors, tokiofile(F,F1),see(F1), !,
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48 tokiocomp1('$$$$'), seen, see(O), !.
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49 tokiocomp(F, _, _) :-
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50 fileerrors,
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51 c_error((write('Cannot open file: '), write(F), nl)), !, fail.
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52
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53 tokiofile(F,F).
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54 tokiofile(F,F1) :- name(F,FL),concatenate([FL,".tokio"],NewL),name(F1,NewL).
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55 tokiofile(F,F1) :- name(F,FL),concatenate([FL,".t"],NewL),name(F1,NewL).
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56
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57
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58 /* tokiocomp1
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59 read loop (fail loop)
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60 */
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61
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62 tokiocomp1(X) :- tokiocomp2(X).
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63 tokiocomp1(_) :-
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64 read(Next), !, tokiocomp1(Next).
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65 tokiocomp1(_) :- c_error((nl,write('read error'),nl)).
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66
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67 /* tokocomp2
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68 compiler directive
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69 this predicate never success except file end.
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70 */
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71
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72 tokiocomp2(end_of_file) :- !.
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73 tokiocomp2('$$$$') :- !,fail.
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74 tokiocomp2('$define'(Macro)) :-
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75 read_macro(Macro),!,fail.
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76 tokiocomp2('$function'(Function)) :-
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77 read_function(Function),!,fail.
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78 tokiocomp2((:- X)) :-
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79 call(X), write_clause((:- X)),!,fail.
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80 tokiocomp2((?- X)) :-
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81 call(X), write_clause((:- X)),!,fail.
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82 tokiocomp2(Head) :- compiling_message(Head),fail.
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83 tokiocomp2(X) :- preprocess(X,X1),!,tokiocomp3(X1).
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84
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85 compiling_message((Head :- _Body)) :- !,compiling_message(Head).
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86 compiling_message(Head) :-
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87 (systemp(Head);Head = (_,_);Head = [_|_];functor(Head,'{}',_)),!,
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88 functor(Head,H,A),
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89 c_error((
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90 write('Compiling System Predicate: '),
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91 write(H/A),nl)),!.
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92 compiling_message(Head) :-
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93 functor(Head,H,A),
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94 c_error((
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95 write('Compiling: '),
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96 write(H/A),nl)),!,!.
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97
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98 /* tokiocomp3
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99 if end_of_file then success otherwise fail
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100 */
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101
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102 tokiocomp3((X,_Y)) :- tokiocomp3(X),fail. % fail and fall into next line
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103 tokiocomp3((_X,Y)) :- !,tokiocomp3(Y).
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104 tokiocomp3(X) :-
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105 c_clause(X, C), write_clause(C),!, fail. % to reduce stack
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106 tokiocomp3(X) :-
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107 c_error((nl,write('compiler error on '),write(X),nl)),fail.
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108
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109 % preprocess(X,X). % no development
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110
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111 display_fa(F/A) :- display(F), display('/'), display(A), display(',').
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112
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113 writel([]) :- !.
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114 writel([X|L]) :- writel(L), write(X), write(', ').
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115
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116 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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117 %
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118 % varialble type
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119 %
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120 % '$REF' full referenced variable
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121 % '$TMP' both now and next are referenced
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122 % '$NOW','$NXT' either now or next is referenced
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123 % '$CNT' this variable is constnat in time transition
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124 %
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125 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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126
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127 variable(X) :- var(X), !.
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128 variable('$REF'(_)) :- !.
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129 variable('$CNT'(_)) :- !.
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130 variable('$NOW'(_,_)) :- !.
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131 variable('$NXT'(_,_)) :- !.
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132 variable('$TMP'(_,_,_)).
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133
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134
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135 % c_post(Vname, Vname, V0, V) :-
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136 % var(Vname),!, V is V0+1,name(V0,Lv),name(Vname,[95|Lv]). %%% _001
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137 c_post(Vname, Vname, V0, V) :-
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138 var(Vname),!, V is V0+1,Vname = '$VAR'(V0). %%% _001
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139 c_post('$VAR'(X), '$VAR'(X), V, V) :- !.
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140 c_post('$CNT'(X), XX, V0, V) :- !, c_post(X, XX, V0, V).
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141 c_post('$REF'(X), XX, V0, V) :- !, c_post(X, XX, V0, V).
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142 c_post('$TMP'(X,Now,Nxt), XX, V0, V) :- !, c_post_tvar(X,Now,Nxt, XX, V0, V).
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143 c_post('$NOW'(X,Now), XX, V0, V) :- !, c_post_tvar(X,Now,_Nxt, XX, V0, V).
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144 c_post('$NXT'(X,Nxt), XX, V0, V) :- !, c_post_tvar(X,_Now,Nxt, XX, V0, V).
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145 c_post(Atomic,Qatomic,V,V) :- atomic(Atomic),!,
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146 c_post_atomic(Atomic,Qatomic).
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147 c_post([A|B],[AA|BB], V0, V) :- !,
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148 c_post(A,AA,V0,V1),c_post(B,BB,V1,V).
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149 c_post((A,B),(AA,BB), V0, V) :- !,
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150 c_post(A,AA,V0,V1),c_post(B,BB,V1,V).
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151 % Special Hack.... ( nonvar for C-Prolog)
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152 c_post('r_eq'(A,B,Q1,Q2), B1=A1, V0, V) :- nonvar(A),nonvar(B),
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153 functor(A,'$CNT',_),functor(B,'$CNT',_),!,
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154 c_post(A,A1,V0,V1),c_post(B,B1,V1,V2),
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155 c_post(Q1,Q11,V2,V3),c_post(Q2,Q12,V3,V),Q11=Q12.
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156 c_post('r_eq'(A,B,Q1,Q2), 'r_eqn'(B1,A1,Q11,Q12), V0, V) :- nonvar(A),
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157 functor(A,'$CNT',_),!,
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158 c_post(A,A1,V0,V1),c_post(B,B1,V1,V2),
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159 c_post(Q1,Q11,V2,V3),c_post(Q2,Q12,V3,V).
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160 c_post('r_eq'(A,B,Q1,Q2), 'r_eqn'(A1,B1,Q11,Q12), V0, V) :- nonvar(B),
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161 functor(B,'$CNT',_),!,
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162 c_post(A,A1,V0,V1),c_post(B,B1,V1,V2),
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163 c_post(Q1,Q11,V2,V3),c_post(Q2,Q12,V3,V).
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164 c_post('r_eq'(A,B,Q1,Q2), 'r_eq'(A1,B1,Q11,Q12), V0, V) :- !,
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165 c_post(A,A1,V0,V1),c_post(B,B1,V1,V2),
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166 c_post(Q1,Q11,V2,V3),c_post(Q2,Q12,V3,V).
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167 c_post(X, XX, V0, V) :-
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168 functor(X, F, A), c_post_atomic(F,F1),!, functor(XX, F1, A),
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169 c_post_args(0, A, X, XX, V0, V).
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170
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171 c_post_atomic(X,X).
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172 % c_post_atomic([],[]) :- !.
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173 % c_post_atomic(Number,Number) :- number(Number),!.
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174 % c_post_atomic(Atomic,Qatomic):-
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175 % name(Atomic,La),La=[H|_],[H]\="'",[H]\="_",!,
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176 % concatenate(["'",La,"'"],Nla),name(Qatomic,Nla).
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177 % c_post_atomic(Atomic,Atomic).
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178
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179 c_post_args(N, N, _, _, V, V) :- !.
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180 c_post_args(K, N, X, XX, V0, V) :-
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181 K1 is K+1, arg(K1, X, XK), c_post(XK, XXK, V0, V1), arg(K1, XX, XXK),
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182 c_post_args(K1, N, X, XX, V1, V).
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183
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184 c_post_tvar(X, Now, Nxt, '$t'(Now1,Nxt1), V0, V) :- var(X),!,
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185 X='$TMP'(_,Now,Nxt),
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186 c_post(Now, Now1, V0, V1),
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187 c_post(Nxt, Nxt1, V1, V).
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188 c_post_tvar('$REF'(X), _Now, _Nxt, XX, V0, V) :- !,
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189 c_post(X, XX, V0, V).
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190 c_post_tvar('$CNT'(X), _Now, _Nxt, XX, V0, V) :- !,
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191 c_post(X, XX, V0, V).
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192 c_post_tvar('$TMP'(X,Now,Nxt), Now, Nxt, XX, V0, V) :- !,
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193 c_post_tvar(X, Now, Nxt, XX, V0, V).
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194
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195 write_clause(X) :- recorded('r_assert',_,_),assert_clause0(X).
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196 write_clause(_) :- recorded('r_assert',_,_).
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197 write_clause(X) :- write_clause0(X).
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198 write_clause(_).
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199
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200 write_clause0((X:-true)) :-
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201 c_post(X, XX, 0, _),
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202 write_term(XX,[numbervars(true),quoted(true)]),
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203 % writeq(XX),
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204 put("."), nl,!,fail. %%% writeq --> write
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205 write_clause0(X) :-
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206 c_post(X, XX, 0, _), writeq1(XX), put("."), nl,!,fail. %%% writeq --> write
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207
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208 % a little pretty print
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209 writeq1((A,B)) :- !,writeq1(A),put("."), nl,
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210 writeq1(B).
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211 writeq1((H:-B)) :- !,
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212 % writeq(H),
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213 write_term(H,[numbervars(true),quoted(true)]),
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214 write((:-)),
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215 writeq2(B).
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216 writeq1(X) :-
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217 % writeq(X).
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218 write_term(X,[numbervars(true),quoted(true)]).
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219 writeq2((A,B)) :- !,nl,tab(4),
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220 % writeq(A),
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221 write_term(A,[numbervars(true),quoted(true)]),
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222 put(","),writeq2(B).
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223 writeq2(X) :- nl,tab(4),
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224 write_term(X,[numbervars(true),quoted(true)]).
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225 % writeq(X).
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226
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227
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228 assert_clause(X) :- assert_clause0(X).
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229 assert_clause(_).
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230
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231 %assert_clause0((X:-true)) :-
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232 % c_post(X, XX, 0, _), c_melt(XX,XXX,_),
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233 % recorda('r_run',XXX,Ref),assertz(XXX), !,fail.
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234 assert_clause0(X) :-
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235 c_post(X, XX, 0, _), c_melt(XX,((XXX:-Y)),_),
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236 recorda('r_run',((XXX:-_)),_Ref),assertz((XXX:-Y)), !,fail.
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237
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238 /* end */
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