630 lines
14 KiB
C++
630 lines
14 KiB
C++
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#define YAP_CPP_INTERFACE 1
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#include "yapi.hh"
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#include "SWI-Stream.h"
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YAPAtomTerm::YAPAtomTerm(char *s) { // build string
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BACKUP_H();
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CACHE_REGS
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seq_tv_t inp, out;
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inp.val.c = s;
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inp.type = YAP_STRING_CHARS;
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out.type = YAP_STRING_ATOM;
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if (Yap_CVT_Text(&inp, &out PASS_REGS))
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mk ( MkAtomTerm(out.val.a) );
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else t = 0L;
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RECOVER_H();
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}
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YAPAtomTerm::YAPAtomTerm(char *s, size_t len) { // build string
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BACKUP_H();
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CACHE_REGS
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seq_tv_t inp, out;
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inp.val.c = s;
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inp.type = YAP_STRING_CHARS;
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out.type = YAP_STRING_ATOM|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
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out.sz = len;
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out.max = len;
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if (Yap_CVT_Text(&inp, &out PASS_REGS))
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mk ( MkAtomTerm(out.val.a) );
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else t = 0L;
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RECOVER_H();
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}
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YAPAtomTerm::YAPAtomTerm(wchar_t *s): YAPTerm() { // build string
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BACKUP_H();
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CACHE_REGS
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seq_tv_t inp, out;
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inp.val.w = s;
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inp.type = YAP_STRING_WCHARS;
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out.type = YAP_STRING_ATOM;
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if (Yap_CVT_Text(&inp, &out PASS_REGS))
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mk ( MkAtomTerm(out.val.a) );
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else t = 0L;
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RECOVER_H();
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}
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YAPAtomTerm::YAPAtomTerm(wchar_t *s, size_t len) : YAPTerm() { // build string
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BACKUP_H();
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CACHE_REGS
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seq_tv_t inp, out;
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inp.val.w = s;
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inp.type = YAP_STRING_WCHARS;
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out.type = YAP_STRING_ATOM|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
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out.sz = len;
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out.max = len;
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if (Yap_CVT_Text(&inp, &out PASS_REGS))
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mk ( MkAtomTerm(out.val.a) );
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else t = 0L;
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RECOVER_H();
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}
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YAPStringTerm::YAPStringTerm(char *s) { // build string
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BACKUP_H();
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CACHE_REGS
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seq_tv_t inp, out;
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inp.val.c = s;
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inp.type = YAP_STRING_CHARS;
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out.type = YAP_STRING_STRING;
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if (Yap_CVT_Text(&inp, &out PASS_REGS))
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mk ( out.val.t );
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else t = 0L;
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RECOVER_H();
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}
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YAPStringTerm::YAPStringTerm(char *s, size_t len) { // build string
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BACKUP_H();
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CACHE_REGS
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seq_tv_t inp, out;
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inp.val.c = s;
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inp.type = YAP_STRING_CHARS;
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out.type = YAP_STRING_STRING|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
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out.sz = len;
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out.max = len;
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if (Yap_CVT_Text(&inp, &out PASS_REGS))
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mk ( out.val.t );
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else t = 0L;
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RECOVER_H();
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}
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YAPStringTerm::YAPStringTerm(wchar_t *s): YAPTerm() { // build string
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BACKUP_H();
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CACHE_REGS
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seq_tv_t inp, out;
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inp.val.w = s;
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inp.type = YAP_STRING_WCHARS;
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out.type = YAP_STRING_STRING;
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if (Yap_CVT_Text(&inp, &out PASS_REGS))
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mk ( out.val.t );
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else t = 0L;
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RECOVER_H();
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}
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YAPStringTerm::YAPStringTerm(wchar_t *s, size_t len) : YAPTerm() { // build string
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BACKUP_H();
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CACHE_REGS
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seq_tv_t inp, out;
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inp.val.w = s;
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inp.type = YAP_STRING_WCHARS;
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out.type = YAP_STRING_STRING|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
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out.sz = len;
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out.max = len;
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if (Yap_CVT_Text(&inp, &out PASS_REGS))
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mk ( out.val.t );
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else t = 0L;
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RECOVER_H();
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}
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YAPApplTerm::YAPApplTerm(YAPFunctor f, YAPTerm ts[]) : YAPTerm() {
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UInt arity = ArityOfFunctor(f.f);
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mk ( Yap_MkApplTerm( f.f, arity, (Term *)ts) );
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}
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YAPApplTerm::YAPApplTerm(YAPFunctor f) : YAPTerm() {
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UInt arity = ArityOfFunctor(f.f);
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mk ( Yap_MkNewApplTerm( f.f, arity) );
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}
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YAPTerm YAPApplTerm::getArg(int arg) {
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return YAPTerm( ArgOfTerm(arg, gt() ) );
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}
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YAPFunctor YAPApplTerm::getFunctor() {
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return YAPFunctor( FunctorOfTerm( gt( )) );
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}
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YAPPairTerm::YAPPairTerm(YAPTerm th, YAPTerm tl) : YAPTerm() {
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CACHE_REGS
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mk ( MkPairTerm( th.term(), tl.term() ) );
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}
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YAPPairTerm::YAPPairTerm() : YAPTerm() {
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t = Yap_MkNewPairTerm( );
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}
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void YAPTerm::mk(Term t0) { CACHE_REGS t = Yap_InitSlot( t0 PASS_REGS); }
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Term YAPTerm::gt() { CACHE_REGS return Yap_GetFromSlot( t PASS_REGS); }
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YAP_tag_t YAPTerm::tag() {
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Term tt = gt( );
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if (IsVarTerm(tt)) {
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CELL *pt = VarOfTerm(tt);
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if (IsUnboundVar(pt)) {
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CACHE_REGS
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if (IsAttVar(pt))
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return YAP_TAG_ATT;
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return YAP_TAG_UNBOUND;
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}
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return YAP_TAG_REF;
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}
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if (IsPairTerm(tt))
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return YAP_TAG_PAIR;
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if (IsAtomOrIntTerm(tt)) {
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if (IsAtomTerm(tt))
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return YAP_TAG_ATOM;
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return YAP_TAG_INT;
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} else {
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Functor f = FunctorOfTerm(tt);
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if (IsExtensionFunctor(f)) {
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if (f == FunctorDBRef) {
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return YAP_TAG_DBREF;
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}
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if (f == FunctorLongInt) {
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return YAP_TAG_LONG_INT;
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}
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if (f == FunctorBigInt) {
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big_blob_type bt = (big_blob_type)RepAppl(tt)[1];
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switch (bt) {
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case BIG_INT:
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return YAP_TAG_BIG_INT;
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case BIG_RATIONAL:
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return YAP_TAG_RATIONAL;
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default:
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return YAP_TAG_OPAQUE;
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}
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}
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}
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return YAP_TAG_APPL;
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}
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}
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YAPTerm YAPTerm::deepCopy() {
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Term tn;
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BACKUP_MACHINE_REGS();
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tn = Yap_CopyTerm( gt() );
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RECOVER_MACHINE_REGS();
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return new YAPTerm( tn );
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}
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bool YAPTerm::exactlyEqual(YAPTerm t1) {
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int out;
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BACKUP_MACHINE_REGS();
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out = Yap_eq(gt(), t1.term());
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RECOVER_MACHINE_REGS();
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return out;
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}
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bool YAPTerm::unify(YAPTerm t1) {
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int out;
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BACKUP_MACHINE_REGS();
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out = Yap_unify(gt(), t1.term());
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RECOVER_MACHINE_REGS();
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return out;
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}
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bool YAPTerm::unifiable(YAPTerm t1) {
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int out;
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BACKUP_MACHINE_REGS();
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out = Yap_Unifiable(gt(), t1.term());
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RECOVER_MACHINE_REGS();
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return out;
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}
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bool YAPTerm::variant(YAPTerm t1) {
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int out;
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BACKUP_MACHINE_REGS();
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out = Yap_Variant(gt(), t1.term());
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RECOVER_MACHINE_REGS();
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return out;
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}
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intptr_t YAPTerm::hashTerm(size_t sz, size_t depth, bool variant) {
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intptr_t out;
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BACKUP_MACHINE_REGS();
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out = Yap_TermHash(gt(), sz, depth, variant) ;
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RECOVER_MACHINE_REGS();
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return out;
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}
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char *YAPTerm::text(void) {
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size_t sze = 4096, length;
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char *os;
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int enc;
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{ CACHE_REGS __android_log_print(ANDROID_LOG_ERROR, __FUNCTION__, "I LCL0+%p/t=(%d) %x", LCL0, t, LCL0[-15]) ; }
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BACKUP_MACHINE_REGS();
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if (!(os = Yap_HandleToString(t, sze, &length, &enc, 0))) {
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{ CACHE_REGS __android_log_print(ANDROID_LOG_ERROR, __FUNCTION__, "IIa LCL0+t=(%p) %x", LCL0, LCL0[-15]) ; }
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RECOVER_MACHINE_REGS();
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return (char *)NULL;
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}
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{ CACHE_REGS __android_log_print(ANDROID_LOG_ERROR, __FUNCTION__, "II LCL0+t=(%p) %x", LCL0, LCL0[-15]) ; }
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RECOVER_MACHINE_REGS();
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return os;
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}
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bool YAPListTerm::nil() {
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CACHE_REGS
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__android_log_print(ANDROID_LOG_ERROR, __FUNCTION__, "t=%d LCL0+t=(%p)", t, LCL0+t) ;
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return gt() == TermNil;
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}
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YAPIntegerTerm::YAPIntegerTerm(intptr_t i) { CACHE_REGS Term tn = MkIntegerTerm( i ); mk( tn ); }
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/*
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YAPTerm *YAPTerm::vars()
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{
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BACKUP_MACHINE_REGS();
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CACHE_REGS
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YAPPairTerm lv = YAPPairTerm(Yap_TermVariables(gt(), 0 PASS_REGS));
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RECOVER_MACHINE_REGS();
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return lv;
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}
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*/
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YAPTerm::YAPTerm(void *ptr) { CACHE_REGS mk( MkIntegerTerm( (Int)ptr ) );}
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YAPTerm::YAPTerm(intptr_t i) { CACHE_REGS Term tn = MkIntegerTerm( i ); mk( tn ); }
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YAPTerm YAPListTerm::car()
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{
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{ CACHE_REGS __android_log_print(ANDROID_LOG_ERROR, __FUNCTION__, "t=%d LCL0+t=(%p)", t, LCL0+t) ; }
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Term to = gt();
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if (IsPairTerm(to))
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return YAPTerm(HeadOfTerm(to));
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else
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return MkIntTerm(-1);
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}
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YAPVarTerm::YAPVarTerm() { CACHE_REGS mk( MkVarTerm( ) ); }
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char *YAPAtom::getName(void) {
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if (IsWideAtom(a)) {
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// return an UTF-8 version
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size_t sz = 512;
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wchar_t * ptr = a->WStrOfAE;
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int ch = -1;
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char *s = new char[sz], *op = s;
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while (ch) {
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ch = *ptr++;
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utf8_put_char( op, ch );
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}
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sz = strlen(s)+1;
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char *os = new char[sz];
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memcpy(os, s, sz);
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delete[] s;
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return os;
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} else if (IsBlob(a)) {
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PL_blob_t *type = RepBlobProp(a->PropsOfAE)->blob_t;
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size_t sz = 512;
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if (type->write) {
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char *s = new char[sz];
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IOSTREAM *stream = Sopenmem(&s, &sz, "w");
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stream->encoding = ENC_UTF8;
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atom_t at = YAP_SWIAtomFromAtom(AbsAtom(a));
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type->write(stream, at, 0);
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Sclose(stream);
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popOutputContext();
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sz = strlen(s)+1;
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char *os = new char[sz];
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memcpy(os, s, sz);
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delete s;
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return os;
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} else {
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char *s = new char[sz];
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#if defined(__linux__) || defined(__APPLE__)
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snprintf(s, sz, "'%s'(%p)", AtomSWIStream->StrOfAE, a);
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#else
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snprintf(s, sz, "'%s'(0x%p)", AtomSWIStream->StrOfAE, a);
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#endif
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char *os = new char[sz];
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memcpy(os, s, sz);
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delete[] s;
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return os;
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}
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} else {
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return a->StrOfAE;
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}
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}
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YAPPredicate::YAPPredicate(const char *s, Term **outp, YAPTerm &vnames) throw (int) {
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CACHE_REGS
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vnames = Yap_NewSlots(1 PASS_REGS);
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Term t = Yap_StringToTerm(s, strlen(s)+1, Yap_GetFromSlot( vnames.t PASS_REGS));
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if (t == 0L)
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throw YAPError::YAP_SYNTAX_ERROR;
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ap = getPred( t, outp );
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//{ CACHE_REGS __android_log_print(ANDROID_LOG_ERROR, __FUNCTION__, "OUT vnames=%d ap=%p LCL0=%p", vnames, ap, LCL0) ; }
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}
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YAPPredicate::YAPPredicate(YAPAtom at) {
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CACHE_REGS
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ap = RepPredProp(PredPropByAtom(at.a,CurrentModule));
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}
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YAPPredicate::YAPPredicate(YAPAtom at, arity_t arity) {
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CACHE_REGS
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if (arity) {
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Functor f = Yap_MkFunctor(at.a, arity);
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ap = RepPredProp(PredPropByFunc(f,CurrentModule));
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} else {
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ap = RepPredProp(PredPropByAtom(at.a,CurrentModule));
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}
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}
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/// auxiliary routine to find a predicate in the current module.
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PredEntry *YAPPredicate::getPred( Term t, Term **outp ) {
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CACHE_REGS
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Term m = CurrentModule ;
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t = Yap_StripModule(t, &m);
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if (IsVarTerm(t) || IsNumTerm(t)) {
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ap = (PredEntry *)NULL;
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if (outp) *outp = (Term *)NULL;
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}
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if (IsAtomTerm(t)) {
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ap = RepPredProp(PredPropByAtom(AtomOfTerm(t), m));
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if (outp) *outp = (Term *)NULL;
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} else if (IsPairTerm(t)) {
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ap = RepPredProp(PredPropByFunc(FunctorCsult, PROLOG_MODULE));
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if (outp) *outp = HR;
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HR[0] = RepPair(t)[0];
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HR[1] = m;
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HR+=2;
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} else {
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Functor f = FunctorOfTerm(t);
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if (IsExtensionFunctor(f)) {
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ap = (PredEntry *)NULL;
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if (outp) *outp = (Term *)NULL;
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}
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ap = RepPredProp(PredPropByFunc(f, m));
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if (outp) *outp = RepAppl(t)+1;
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}
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return ap;
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}
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YAPPredicate::YAPPredicate(YAPFunctor f) {
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CACHE_REGS
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ap = RepPredProp(PredPropByFunc(f.f,CurrentModule));
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}
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void
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YAPQuery::initQuery( Term *ts )
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{
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CACHE_REGS
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this->oq = (YAPQuery *)LOCAL_execution;
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LOCAL_execution = (struct open_query_struct *)this;
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this->q_open=1;
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this->q_state=0;
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this->q_flags = PL_Q_PASS_EXCEPTION;
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this->q_g = ts;
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}
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void
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YAPQuery::initQuery( YAPTerm t[], arity_t arity )
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{
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Term *ts = new Term[arity];
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for (arity_t i = 0; i < arity; i++)
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ts[i] = t[i].term();
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return initQuery( ts );
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}
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YAPQuery::YAPQuery(YAPFunctor f, YAPTerm mod, YAPTerm t[]): YAPPredicate(f, mod)
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{
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/* ignore flags for now */
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initQuery( t , f.arity());
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}
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YAPQuery::YAPQuery(YAPFunctor f, YAPTerm t[]): YAPPredicate(f)
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{
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/* ignore flags for now */
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initQuery( t , f.arity());
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}
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YAPQuery::YAPQuery(YAPPredicate p, YAPTerm t[]): YAPPredicate(p.ap)
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{
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initQuery( t , p.ap->ArityOfPE);
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}
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YAPListTerm YAPQuery::namedVars() {
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CACHE_REGS
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Term o = Yap_GetFromSlot( this->vnames.t PASS_REGS );
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return YAPListTerm( o );
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}
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bool YAPQuery::next()
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{
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CACHE_REGS
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int result;
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if (this->q_open != 1) return false;
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if (setjmp(((YAPQuery *)LOCAL_execution)->q_env))
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return false;
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// don't forget, on success these guys must create slots
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if (this->q_state == 0) {
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// extern void toggle_low_level_trace(void);
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//toggle_low_level_trace();
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result = (bool)YAP_EnterGoal((YAP_PredEntryPtr)this->ap, this->q_g, &this->q_h);
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} else {
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LOCAL_AllowRestart = this->q_open;
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result = (bool)YAP_RetryGoal(&this->q_h);
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}
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this->q_state = 1;
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if (!result) {
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YAP_LeaveGoal(FALSE, &this->q_h);
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this->q_open = 0;
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}
|
|
return result;
|
|
}
|
|
|
|
void YAPQuery::cut()
|
|
{
|
|
CACHE_REGS
|
|
|
|
if (this->q_open != 1 || this->q_state == 0) return;
|
|
YAP_LeaveGoal(FALSE, &this->q_h);
|
|
this->q_open = 0;
|
|
LOCAL_execution = (struct open_query_struct *)this->oq;
|
|
}
|
|
|
|
void YAPQuery::close()
|
|
{
|
|
CACHE_REGS
|
|
|
|
if (EX && !(this->q_flags & (PL_Q_CATCH_EXCEPTION))) {
|
|
EX = (struct DB_TERM *)NULL;
|
|
}
|
|
/* need to implement backtracking here */
|
|
if (this->q_open != 1 || this->q_state == 0) {
|
|
return;
|
|
}
|
|
YAP_LeaveGoal(FALSE, &this->q_h);
|
|
this->q_open = 0;
|
|
LOCAL_execution = (struct open_query_struct *)this->oq;
|
|
}
|
|
|
|
int YAPPredicate::call(YAPTerm t[])
|
|
{
|
|
YAPQuery q = YAPQuery(*this, t);
|
|
int ret;
|
|
|
|
ret = q.next();
|
|
q.cut();
|
|
q.close();
|
|
return ret;
|
|
}
|
|
|
|
static YAPEngine *curren;
|
|
|
|
#if __ANDROID__
|
|
|
|
#include <jni.h>
|
|
#include <string.h>
|
|
|
|
extern AAssetManager *assetManager;
|
|
|
|
extern char *Yap_AndroidBufp;
|
|
static size_t Yap_AndroidMax, Yap_AndroidSz;
|
|
|
|
extern void(*Yap_DisplayWithJava)(int c);
|
|
|
|
static void
|
|
displayWithJava(int c)
|
|
{
|
|
char *ptr = Yap_AndroidBufp;
|
|
ptr[ Yap_AndroidSz++ ] = c;
|
|
if (Yap_AndroidMax-1 == Yap_AndroidSz) {
|
|
if (Yap_AndroidMax < 32*1024) {
|
|
Yap_AndroidMax *= 2;
|
|
} else {
|
|
Yap_AndroidMax += 32*1024;
|
|
}
|
|
Yap_AndroidBufp = (char *)realloc( ptr, Yap_AndroidMax);
|
|
}
|
|
Yap_AndroidBufp[Yap_AndroidSz] = '\0';
|
|
if (c == '\n' ) {
|
|
Yap_AndroidBufp[Yap_AndroidSz] = '\0';
|
|
curren->run(Yap_AndroidBufp);
|
|
Yap_AndroidSz = 0;
|
|
}
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
|
|
YAPEngine::YAPEngine( char *savedState,
|
|
size_t stackSize,
|
|
size_t trailSize,
|
|
size_t maxStackSize,
|
|
size_t maxTrailSize,
|
|
char *libDir,
|
|
char *bootFile,
|
|
char *goal,
|
|
char *topLevel,
|
|
bool script,
|
|
bool fastBoot,
|
|
YAPCallback *cb): _callback(0)
|
|
{ // a single engine can be active
|
|
#if __ANDROID__
|
|
if (GLOBAL_assetManager == (AAssetManager *)NULL)
|
|
return;
|
|
Yap_DisplayWithJava = displayWithJava;
|
|
Yap_AndroidBufp = (char *)malloc(Yap_AndroidMax = 4096);
|
|
Yap_AndroidBufp[0] = '\0';
|
|
Yap_AndroidSz = 0;
|
|
#endif
|
|
memset((void *)&init_args, 0, sizeof(init_args));
|
|
init_args.SavedState = savedState;
|
|
init_args.StackSize = stackSize;
|
|
init_args.TrailSize = trailSize;
|
|
init_args.MaxStackSize = maxStackSize;
|
|
init_args.MaxTrailSize = maxTrailSize;
|
|
init_args.YapLibDir = libDir;
|
|
init_args.YapPrologBootFile = bootFile;
|
|
init_args.YapPrologGoal = goal;
|
|
init_args.YapPrologTopLevelGoal = topLevel;
|
|
init_args.HaltAfterConsult = script;
|
|
init_args.FastBoot = fastBoot;
|
|
delYAPCallback();
|
|
if (cb) setYAPCallback(cb);
|
|
curren = this;
|
|
YAP_Init( &init_args );
|
|
}
|
|
|
|
YAPQuery *YAPEngine::query( char *s ) {
|
|
YAPQuery *n = new YAPQuery( s );
|
|
return n;
|
|
}
|
|
|
|
|