android.

C/c_interface.c

@@ -297,6 +297,16 @@ X_API Term YAP_MkStringTerm(const char *n) {
     return I;
 }
 
+X_API Term YAP_MkCharPTerm( char *n) {
+    CACHE_REGS
+    Term I;
+    BACKUP_H();
+
+    I = MkStringTerm(n);
+    RECOVER_H();
+    return I;
+}
+
 X_API Term YAP_MkUnsignedStringTerm(const unsigned char *n) {
   CACHE_REGS
   Term I;

CXX/yapi.cpp

@@ -189,14 +189,8 @@ YAPStringTerm::YAPStringTerm(char *s) { // build string
   BACKUP_H();
 
   CACHE_REGS
-  seq_tv_t inp, out;
-  inp.val.c = s;
-  inp.type = YAP_STRING_CHARS;
-  out.type = YAP_STRING_STRING;
-  if (Yap_CVT_Text(&inp, &out PASS_REGS))
-    mk(out.val.t);
-  else
-    t = 0L;
+  Term ts = MkStringTerm(s);
+  mk(ts);
   RECOVER_H();
 }
 
@@ -708,6 +702,7 @@ bool YAPQuery::next() {
   __android_log_print(ANDROID_LOG_INFO, "YAPDroid", "exec  ");
 
   if (q_state == 0) {
+      //Yap_do_low_level_trace = 1;
     result = (bool)YAP_EnterGoal(ap, nullptr, &q_h);
   } else {
     LOCAL_AllowRestart = q_open;

CXX/yapi.hh

@@ -106,6 +106,7 @@ X_API extern void YAP_UserBackCutCPredicate(const char *name,
 
 X_API extern YAP_Term YAP_ReadBuffer(const char *s, YAP_Term *tp);
 
+extern YAP_Term YAP_MkcharPTerm(char *s);
 
 
 }

CXX/yapq.hh

@@ -178,6 +178,7 @@ public:
     // const std::string *s = new std::string("startup.yss");
     Embedded = true;
       install = false;
+
     Yap_InitDefaults(this, nullptr, 0, nullptr);
 #if YAP_PYTHON
     Embedded = true;

CXX/yapt.hh

@@ -27,6 +27,13 @@
 
 class YAPError;
 
+extern "C" {
+
+X_API extern Term YAP_MkCharPTerm( char *n);
+
+
+}
+
 /**
  * @brief Generic Prolog Term
  */
@@ -39,7 +46,7 @@ class X_API YAPTerm {
   friend class YAPApplTerm;
   friend class YAPListTerm;
 
-protected:
+ protected:
   yhandle_t t; /// handle to term, equivalent to term_t
 
 public:
@@ -314,12 +321,18 @@ public:
       tf = ArgOfTerm(i, t0);
       RECOVER_MACHINE_REGS();
       return tf;
+    };
+              void putArg(int i, Term targ) {
+                //BACKUP_MACHINE_REGS();
+                Term t0 = gt();
+                RepAppl(t0)[i] = Deref(targ);
+                //RECOVER_MACHINE_REGS();
               };
               void putArg(int i, YAPTerm t) {
-      BACKUP_MACHINE_REGS();
+                //BACKUP_MACHINE_REGS();
                 Term t0 = gt();
                 RepAppl(t0)[i] = t.term();
-      RECOVER_MACHINE_REGS();
+                //RECOVER_MACHINE_REGS();
               };
     virtual bool isVar() { return false; }     /// type check for unbound
   virtual bool isAtom() { return false; }    ///  type check for atom

H/TermExt.h

@@ -288,6 +288,8 @@ INLINE_ONLY bool IsLongIntTerm(Term t) {
 
 /* extern Functor FunctorString; */
 
+
+
 #define MkStringTerm(i) __MkStringTerm((i)PASS_REGS)
 
 INLINE_ONLY Term __MkStringTerm(const char *s USES_REGS);
@@ -336,6 +338,31 @@ __MkUStringTerm(const unsigned char *s USES_REGS) {
   return t;
 }
 
+#define MkCharPTerm(i) __MkCharPTerm((i)PASS_REGS)
+
+INLINE_ONLY Term __MkCharPTerm(char *s USES_REGS);
+
+INLINE_ONLY Term __MkCharPTerm(char *s USES_REGS) {
+  Term t = AbsAppl(HR);
+  size_t sz;
+  if ((s[0] == '\0')) {
+    sz = sizeof(CELL);
+    HR[0] = (CELL)FunctorString;
+    HR[1] = (CELL)sz;
+    HR[2] = 0;
+  } else {
+    sz =  ALIGN_BY_TYPE(strlen((char *)s) + 1, CELL);
+    HR[0] = (CELL)FunctorString;
+    HR[1] = (CELL)sz;
+    strcpy((char *)(HR + 2), (const char *)s);
+  }
+  HR[2 + sz] = EndSpecials;
+  HR += 3 + sz;
+  return t;
+}
+
+
+
 INLINE_ONLY const unsigned char *UStringOfTerm(Term t);
 
 INLINE_ONLY const unsigned char *UStringOfTerm(Term t) {

packages/swig/yap.i

@@ -40,6 +40,7 @@ class YAPEngine;
   extern "C"{
     #include "Yap.h"
 
+X_API extern Term YAP_MkCharPTerm( char *n);
 
 
     #ifdef SWIGPYTHON