===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2018/builtin/dp-supp.c,v
retrieving revision 1.7
retrieving revision 1.14
diff -u -p -r1.7 -r1.14
--- OpenXM_contrib2/asir2018/builtin/dp-supp.c	2019/10/11 03:45:56	1.7
+++ OpenXM_contrib2/asir2018/builtin/dp-supp.c	2020/07/02 09:24:16	1.14
@@ -45,7 +45,7 @@
  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
  *
- * $OpenXM: OpenXM_contrib2/asir2018/builtin/dp-supp.c,v 1.6 2019/09/19 06:29:47 noro Exp $
+ * $OpenXM: OpenXM_contrib2/asir2018/builtin/dp-supp.c,v 1.13 2019/12/27 08:13:59 noro Exp $
 */
 #include "ca.h"
 #include "base.h"
@@ -315,6 +315,21 @@ int _dl_redble(DL d1,DL d2,int nvar)
     return 1;
 }
 
+int _dl_redble_ext(DL d1,DL d2,DL quo,int nvar)
+{
+  int i;
+
+  if ( (quo->td = d2->td-d1->td) < 0 )
+    return 0;
+  for ( i = 0; i < nvar; i++ )
+    if ( (quo->d[i] = d2->d[i]-d1->d[i]) < 0 )
+      break;
+  if ( i < nvar )
+    return 0;
+  else
+    return 1;
+}
+
 void insert_to_node(DL d,NODE *n,int nvar)
 {
   DL d1;
@@ -1244,6 +1259,56 @@ void dp_removecont2(DP p1,DP p2,DP *r1p,DP *r2p,Z *con
     *r2p = 0;
 }
 
+void dpm_removecont2(DPM p1,DPM p2,DPM *r1p,DPM *r2p,Z *contp)
+{
+  struct oVECT v;
+  int i,n1,n2,n;
+  DMM m,m0,t;
+  Z *w;
+  Z h;
+
+  if ( p1 ) {
+    for ( i = 0, m = BDY(p1); m; m = NEXT(m), i++ );
+    n1 = i;
+  } else
+    n1 = 0;
+  if ( p2 ) {
+    for ( i = 0, m = BDY(p2); m; m = NEXT(m), i++ );
+    n2 = i;
+  } else
+    n2 = 0;
+  n = n1+n2;
+  if ( !n ) {
+    *r1p = 0; *r2p = 0; *contp = ONE; return;
+  }
+  w = (Z *)ALLOCA(n*sizeof(Q));
+  v.len = n;
+  v.body = (pointer *)w;
+  i = 0;
+  if ( p1 )
+    for ( m = BDY(p1); i < n1; m = NEXT(m), i++ ) w[i] = (Z)m->c;
+  if ( p2 )
+    for ( m = BDY(p2); i < n; m = NEXT(m), i++ ) w[i] = (Z)m->c;
+  h = w[0]; removecont_array((P *)w,n,1); divsz(h,w[0],contp);
+  i = 0;
+  if ( p1 ) {
+    for ( m0 = 0, t = BDY(p1); i < n1; i++, t = NEXT(t) ) {
+      NEXTDMM(m0,m); m->c = (Obj)w[i]; m->dl = t->dl; m->pos = t->pos;
+    }
+    NEXT(m) = 0;
+    MKDPM(p1->nv,m0,*r1p); (*r1p)->sugar = p1->sugar;
+  } else
+    *r1p = 0;
+  if ( p2 ) {
+    for ( m0 = 0, t = BDY(p2); i < n; i++, t = NEXT(t) ) {
+      NEXTDMM(m0,m); m->c = (Obj)w[i]; m->dl = t->dl; m->pos = t->pos;
+    }
+    NEXT(m) = 0;
+    MKDPM(p2->nv,m0,*r2p); (*r2p)->sugar = p2->sugar;
+  } else
+    *r2p = 0;
+}
+
 /* true nf by a marked GB */
 
 void dp_true_nf_marked(NODE b,DP g,DP *ps,DP *hps,DP *rp,P *nmp,P *dnp)
@@ -1516,6 +1581,487 @@ last:
   return q;
 }
 
+DPM dpm_nf_and_quotient2(NODE b,DPM g,VECT psv,DPM *rp,P *dnp)
+{
+  DPM u,p,s,t,d,q;
+  DP dmy,mult,zzz;
+  DPM *ps;
+  NODE l;
+  DMM mr0,mq0,mr,mq,m;
+  MP mp;
+  int i,n,j,len,nv;
+  int *wb;
+  int sugar,psugar,multiple;
+  P nm,tnm1,dn,tdn,tdn1;
+  Q cont;
+  Obj c1;
+  struct oEGT eg0,eg1;
+
+  dn = (P)ONE;
+  if ( !g ) {
+    *rp = 0; *dnp = dn; return 0;
+  }
+  nv = NV(g);
+  ps = (DPM *)BDY(psv);
+  len = psv->len;
+  if ( b ) {
+    for ( n = 0, l = b; l; l = NEXT(l), n++ )
+      ;
+    wb = (int *)ALLOCA(n*sizeof(int));
+    for ( i = 0, l = b; i < n; l = NEXT(l), i++ )
+      wb[i] = ZTOS((Q)BDY(l));
+  } else {
+    wb = (int *)ALLOCA(len*sizeof(int));
+    for ( i = j = 0; i < len; i++ ) 
+      if ( ps[i] ) wb[j++] = i;
+    n = j;
+  }
+  sugar = g->sugar;
+  mq0 = 0;
+  mr0 = 0;
+  for ( ; g; ) {
+    for ( u = 0, i = 0; i < n; i++ ) {
+      if ( dpm_redble(g,p = ps[wb[i]]) ) {
+        dpm_red2(g,p,&u,&tdn,&mult);
+        psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;
+        sugar = MAX(sugar,psugar);
+        for ( m = mq0; m; m = NEXT(m) ) {
+          arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+        }
+        for ( m = mr0; m; m = NEXT(m) ) {
+          arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+        }
+        NEXTDMM(mq0,mq); 
+        mq->c = BDY(mult)->c; mq->dl = BDY(mult)->dl; mq->pos = wb[i]+1;
+        mulp(CO,dn,tdn,&tdn1); dn = tdn1;
+        if ( !u ) goto last;
+        break;
+      }
+    }
+    if ( u ) {
+      g = u;
+    } else {
+      m = BDY(g);
+      NEXTDMM(mr0,mr);
+      mr->dl = m->dl; mr->c = m->c; mr->pos = m->pos;
+      dpm_rest(g,&t); g = t;
+    }
+  }
+last:
+  if ( mr0 ) {
+    NEXT(mr) = 0;
+    MKDPM(nv,mr0,d); d->sugar = sugar;
+  } else
+    d = 0;
+  if ( mq0 ) {
+    NEXT(mq) = 0;
+    MKDPM(nv,mq0,q); q->sugar = sugar;
+  } else
+    q = 0;
+  *rp = d; *dnp = dn;
+  return q;
+}
+
+DPM dpm_nf_and_quotient3(DPM g,VECT psv,DPM *rp,P *dnp)
+{
+  DPM u,p,s,t,d,q;
+  DP dmy,mult,zzz;
+  DPM *ps;
+  NODE2 nd;
+  DMM mr0,mq0,mr,mq,m;
+  MP mp;
+  int i,n,j,len,nv,pos,max;
+  int *wb;
+  int sugar,psugar,multiple;
+  P nm,tnm1,dn,tdn,tdn1;
+  Q cont;
+  Obj c1;
+  struct oEGT eg0,eg1;
+
+  dn = (P)ONE;
+  if ( !g ) {
+    *rp = 0; *dnp = dn; return 0;
+  }
+  nv = NV(g);
+  sugar = g->sugar;
+  mq0 = 0;
+  mr0 = 0;
+  max = psv->len;
+  for ( ; g; ) {
+    pos = BDY(g)->pos;
+    u = 0;
+    if ( pos < max ) {
+      nd = (NODE2)BDY(psv)[pos];
+      for ( u = 0; nd; nd = NEXT(nd) ) {
+        if ( dpm_redble(g,p = (DPM)(nd->body1)) ) {
+          dpm_red2(g,p,&u,&tdn,&mult);
+          psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;
+          sugar = MAX(sugar,psugar);
+          if ( !UNIZ(tdn) ) {
+            for ( m = mq0; m; m = NEXT(m) ) {
+              arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+            }
+            for ( m = mr0; m; m = NEXT(m) ) {
+              arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+            }
+          }
+          NEXTDMM(mq0,mq); 
+          mq->c = BDY(mult)->c; mq->dl = BDY(mult)->dl; mq->pos = (long)nd->body2;
+          mulp(CO,dn,tdn,&tdn1); dn = tdn1;
+          if ( !u ) goto last;
+          break;
+        }
+      }
+    }
+    if ( u ) {
+      g = u;
+    } else {
+      m = BDY(g);
+      NEXTDMM(mr0,mr);
+      mr->dl = m->dl; mr->c = m->c; mr->pos = m->pos;
+      dpm_rest(g,&t); g = t;
+    }
+  }
+last:
+  if ( mr0 ) {
+    NEXT(mr) = 0;
+    MKDPM(nv,mr0,d); d->sugar = sugar;
+  } else
+    d = 0;
+  if ( mq0 ) {
+    NEXT(mq) = 0;
+    MKDPM(nv,mq0,q); q->sugar = sugar;
+  } else
+    q = 0;
+  *rp = d; *dnp = dn;
+  return q;
+}
+
+DPM dpm_nf_and_quotient4(DPM g,DPM *ps,VECT psiv,DPM head,DPM *rp,P *dnp)
+{
+  DPM u,p,s,t,d,q;
+  DP dmy,mult,zzz;
+  NODE nd;
+  DMM mr0,mq0,mr,mq,m;
+  MP mp;
+  int i,n,j,len,nv,pos,max;
+  int *wb;
+  int sugar,psugar,multiple;
+  P nm,tnm1,dn,tdn,tdn1,c;
+  Q cont;
+  Obj c1;
+  struct oEGT eg0,eg1;
+
+  dn = (P)ONE;
+  if ( !g ) {
+    *rp = 0; *dnp = dn; return 0;
+  }
+  nv = NV(g);
+  sugar = g->sugar;
+  mq0 = 0;
+  if ( head ) {
+    for ( m = BDY(head); m; m = NEXT(m) ) {
+      NEXTDMM(mq0,mq); 
+      mq->c = m->c; mq->dl = m->dl; mq->pos = m->pos;
+    }
+  }
+  mr0 = 0;
+  max = psiv->len;
+  for ( ; g; ) {
+    pos = BDY(g)->pos;
+    u = 0;
+    if ( pos < max ) {
+      nd = (NODE)BDY(psiv)[pos];
+      for ( u = 0; nd; nd = NEXT(nd) ) {
+        if ( dpm_redble(g,p = ps[(long)(BDY(nd))-1]) ) {
+          dpm_red2(g,p,&u,&tdn,&mult);
+          psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;
+          sugar = MAX(sugar,psugar);
+          if ( !UNIZ(tdn) ) {
+            for ( m = mq0; m; m = NEXT(m) ) {
+              arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+            }
+            for ( m = mr0; m; m = NEXT(m) ) {
+              arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+            }
+          }
+          NEXTDMM(mq0,mq); 
+          mq->c = BDY(mult)->c; 
+          mq->dl = BDY(mult)->dl; mq->pos = (long)BDY(nd);
+          mulp(CO,dn,tdn,&tdn1); dn = tdn1;
+          if ( !u ) goto last;
+          break;
+        }
+      }
+    }
+    if ( u ) {
+      g = u;
+    } else {
+      m = BDY(g);
+      NEXTDMM(mr0,mr);
+      mr->dl = m->dl; mr->c = m->c; mr->pos = m->pos;
+      dpm_rest(g,&t); g = t;
+    }
+  }
+last:
+  if ( mr0 ) {
+    NEXT(mr) = 0;
+    MKDPM(nv,mr0,d); d->sugar = sugar;
+  } else
+    d = 0;
+  if ( mq0 ) {
+    NEXT(mq) = 0;
+    MKDPM(nv,mq0,q); q->sugar = sugar;
+  } else
+    q = 0;
+  *rp = d; *dnp = dn;
+  return q;
+}
+
+/* an intermediate version for calling from the user language */
+/* XXX : i, j must be positive */
+
+DPM dpm_sp_nf_asir(VECT psv,int i,int j,DPM *nf)
+{
+  DPM *ps;
+  int n,k,nv,s1,s2,sugar,max,pos,psugar;
+  DPM g,u,p,d,q,t;
+  DMM mq0,mq,mr0,mr,m;
+  DP mult,t1,t2;
+  P dn,tdn,tdn1;
+  NODE nd;
+  Obj c1;
+
+  ps = (DPM *)BDY(psv);
+  n = psv->len;
+  nv = ps[1]->nv;
+  dpm_sp(ps[i],ps[j],&g,&t1,&t2);
+  mq0 = 0;
+  NEXTDMM(mq0,mq); mq->c = BDY(t1)->c; mq->pos = i; mq->dl = BDY(t1)->dl;
+  NEXTDMM(mq0,mq); chsgnp((P)BDY(t2)->c,(P *)&mq->c); mq->pos = j; mq->dl = BDY(t2)->dl;
+
+  if ( !g ) {
+    NEXT(mq) = 0;
+    MKDPM(nv,mq0,d);
+    s1 = BDY(t1)->dl->td + ps[i]->sugar;
+    s2 = BDY(t2)->dl->td + ps[j]->sugar;
+    d->sugar = MAX(s1,s2);
+    *nf = 0; 
+    return d;
+  }
+
+  dn = (P)ONE;
+  sugar = g->sugar;
+  mr0 = 0;
+  while ( g ) {
+    pos = BDY(g)->pos;
+    for ( u = 0, k = 1; k < n; k++ ) {
+      if ( (p=ps[k])!=0 && pos == BDY(p)->pos && dpm_redble(g,p) ) {
+        dpm_red2(g,p,&u,&tdn,&mult);
+        psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;
+        sugar = MAX(sugar,psugar);
+        if ( !UNIZ(tdn) ) {
+          for ( m = mq0; m; m = NEXT(m) ) {
+            arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+          }
+          for ( m = mr0; m; m = NEXT(m) ) {
+            arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+          }
+        }
+        NEXTDMM(mq0,mq); 
+        chsgnp((P)BDY(mult)->c,(P *)&mq->c);
+        mq->dl = BDY(mult)->dl; mq->pos = k;
+        mulp(CO,dn,tdn,&tdn1); dn = tdn1;
+        if ( !u ) goto last;
+        break;
+      }
+    }
+    if ( u ) {
+      g = u;
+    } else {
+      m = BDY(g);
+      NEXTDMM(mr0,mr);
+      mr->dl = m->dl; mr->c = m->c; mr->pos = m->pos;
+      dpm_rest(g,&t); g = t;
+    }
+  }
+last:
+  if ( mr0 ) {
+    NEXT(mr) = 0; MKDPM(nv,mr0,d); d->sugar = sugar;
+  } else
+    d = 0;
+  NEXT(mq) = 0; MKDPM(nv,mq0,q); q->sugar = sugar;
+  *nf = d;
+  return q;
+}
+
+DPM dpm_sp_nf(VECT psv,VECT psiv,int i,int j,DPM *nf)
+{
+  DPM *ps;
+  int n,nv,s1,s2,sugar,max,pos,psugar;
+  DPM g,u,p,d,q,t;
+  DMM mq0,mq,mr0,mr,m;
+  DP mult,t1,t2;
+  P dn,tdn,tdn1;
+  NODE nd;
+  Obj c1;
+
+  ps = (DPM *)BDY(psv);
+  n = psv->len;
+  nv = ps[i]->nv;
+  dpm_sp(ps[i],ps[j],&g,&t1,&t2);
+  mq0 = 0;
+  NEXTDMM(mq0,mq); mq->c = BDY(t1)->c; mq->pos = i; mq->dl = BDY(t1)->dl;
+  NEXTDMM(mq0,mq); chsgnp((P)BDY(t2)->c,(P *)&mq->c); mq->pos = j; mq->dl = BDY(t2)->dl;
+
+  if ( !g ) {
+    NEXT(mq) = 0;
+    MKDPM(nv,mq0,d);
+    s1 = BDY(t1)->dl->td + ps[i]->sugar;
+    s2 = BDY(t2)->dl->td + ps[j]->sugar;
+    d->sugar = MAX(s1,s2);
+    *nf = 0; 
+    return d;
+  }
+
+  dn = (P)ONE;
+  sugar = g->sugar;
+  mr0 = 0;
+  max = psiv->len;
+  while ( g ) {
+    pos = BDY(g)->pos;
+    u = 0;
+    if ( pos < max ) {
+      nd = (NODE)BDY(psiv)[pos];
+      for ( u = 0; nd; nd = NEXT(nd) ) {
+        if ( dpm_redble(g,p = ps[(long)(BDY(nd))]) ) {
+          dpm_red2(g,p,&u,&tdn,&mult);
+          psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;
+          sugar = MAX(sugar,psugar);
+          if ( !UNIZ(tdn) ) {
+            for ( m = mq0; m; m = NEXT(m) ) {
+              arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+            }
+            for ( m = mr0; m; m = NEXT(m) ) {
+              arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+            }
+          }
+          NEXTDMM(mq0,mq); 
+          chsgnp((P)BDY(mult)->c,(P *)&mq->c);
+          mq->dl = BDY(mult)->dl; mq->pos = (long)BDY(nd);
+          mulp(CO,dn,tdn,&tdn1); dn = tdn1;
+          if ( !u ) goto last;
+          break;
+        }
+      }
+    }
+    if ( u ) {
+      g = u;
+    } else {
+      m = BDY(g);
+      NEXTDMM(mr0,mr);
+      mr->dl = m->dl; mr->c = m->c; mr->pos = m->pos;
+      dpm_rest(g,&t); g = t;
+    }
+  }
+last:
+  if ( mr0 ) {
+    NEXT(mr) = 0; MKDPM(nv,mr0,d); d->sugar = sugar;
+  } else
+    d = 0;
+  NEXT(mq) = 0; MKDPM(nv,mq0,q); q->sugar = sugar;
+  *nf = d;
+  return q;
+}
+
+/* psiv is a vector of lists of Z */
+
+DPM dpm_sp_nf_zlist(VECT psv,VECT psiv,int i,int j,int top,DPM *nf)
+{
+  DPM *ps;
+  int n,nv,s1,s2,sugar,max,pos,psugar;
+  DPM g,u,p,d,q,t;
+  DMM mq0,mq,mr0,mr,m;
+  DP mult,t1,t2;
+  P dn,tdn,tdn1;
+  NODE nd;
+  Obj c1;
+
+  ps = (DPM *)BDY(psv);
+  n = psv->len;
+  nv = ps[i]->nv;
+  dpm_sp(ps[i],ps[j],&g,&t1,&t2);
+  mq0 = 0;
+  NEXTDMM(mq0,mq); mq->c = BDY(t1)->c; mq->pos = i; mq->dl = BDY(t1)->dl;
+  NEXTDMM(mq0,mq); chsgnp((P)BDY(t2)->c,(P *)&mq->c); mq->pos = j; mq->dl = BDY(t2)->dl;
+
+  if ( !g ) {
+    NEXT(mq) = 0;
+    MKDPM(nv,mq0,d);
+    s1 = BDY(t1)->dl->td + ps[i]->sugar;
+    s2 = BDY(t2)->dl->td + ps[j]->sugar;
+    d->sugar = MAX(s1,s2);
+    *nf = 0; 
+    return d;
+  }
+
+  dn = (P)ONE;
+  sugar = g->sugar;
+  mr0 = 0;
+  max = psiv->len;
+  while ( g ) {
+    pos = BDY(g)->pos;
+    u = 0;
+    if ( pos < max ) {
+      nd = BDY((LIST)BDY(psiv)[pos]);
+      for ( u = 0; nd; nd = NEXT(nd) ) {
+        if ( dpm_redble(g,p = ps[ZTOS((Q)BDY(nd))]) ) {
+          dpm_red2(g,p,&u,&tdn,&mult);
+          psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar;
+          sugar = MAX(sugar,psugar);
+          if ( !UNIZ(tdn) ) {
+            for ( m = mq0; m; m = NEXT(m) ) {
+              arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+            }
+            for ( m = mr0; m; m = NEXT(m) ) {
+              arf_mul(CO,(Obj)tdn,m->c,&c1); m->c = c1;
+            }
+          }
+          NEXTDMM(mq0,mq); 
+          chsgnp((P)BDY(mult)->c,(P *)&mq->c);
+          mq->dl = BDY(mult)->dl; mq->pos = ZTOS((Q)BDY(nd));
+          mulp(CO,dn,tdn,&tdn1); dn = tdn1;
+          if ( !u ) goto last;
+          break;
+        }
+      }
+    }
+    if ( u ) {
+      g = u;
+    } else if ( !top ) {
+      m = BDY(g);
+      NEXTDMM(mr0,mr);
+      mr->dl = m->dl; mr->c = m->c; mr->pos = m->pos;
+      dpm_rest(g,&t); g = t;
+    } else {
+      *nf = g;
+      if ( mq0 ) {
+        NEXT(mq) = 0; MKDPM(nv,mq0,q); q->sugar = sugar;
+      } else
+        q = 0;
+      return q;
+    }
+  }
+last:
+  if ( mr0 ) {
+    NEXT(mr) = 0; MKDPM(nv,mr0,d); d->sugar = sugar;
+  } else
+    d = 0;
+  NEXT(mq) = 0; MKDPM(nv,mq0,q); q->sugar = sugar;
+  *nf = d;
+  return q;
+}
+
 DP *dp_true_nf_and_quotient_marked_mod(NODE b,DP g,DP *ps,DP *hps,int mod,DP *rp,P *dnp)
 {
   DP u,p,d,s,t,dmy,hp,mult;
@@ -1772,6 +2318,29 @@ void dpm_split(DPM p,int s,DPM *up,DPM *lo)
   }
 }
 
+/* extract the component in DP of position s */
+void dpm_extract(DPM p,int s,DP *r)
+{
+  DMM m;
+  MP mu0,mu;
+  DP t;
+
+  if ( !p ) {
+    *r = 0; return;
+  }
+  for ( m = BDY(p), mu0 = 0; m; m = NEXT(m) ) {
+    if ( m->pos == s ) {
+      NEXTMP(mu0,mu);
+      mu->dl = m->dl; mu->c = m->c;
+    }
+  }
+  if ( mu0 ) {
+    NEXT(mu) = 0; MKDP(p->nv,mu0,t); t->sugar = p->sugar;
+    *r = t;
+  } else
+    *r = 0;
+}
+
 /* nf computation over a field */
 
 void dp_nf_f(NODE b,DP g,DP *ps,int full,DP *rp)
@@ -2227,7 +2796,27 @@ int create_order_spec(VL vl,Obj obj,struct order_spec 
           create_order_spec(0,baseobj,&basespec);
           basespec->obj = baseobj;
           spec->base = basespec;
-        } else {  /* weighted order */
+        } else if ( spec->module_ordtype == 4 ) {  /* POT with base order [n,bord,ord] */
+          NODE base_ord;
+          int rank;
+
+          create_order_spec(0,(Obj)BDY(NEXT(NEXT(node))),&spec);
+          spec->id += 256; spec->obj = obj;
+          spec->top_weight = 0;
+          spec->module_rank = 0;
+          spec->module_top_weight = 0;
+          spec->pot_nelim = 0;
+          spec->module_ordtype = 4;
+          node = NEXT(node);
+          if ( !BDY(node) || OID(BDY(node)) != O_LIST ) 
+            error("create_order_spec : a permitation list must be specified");
+          base_ord = BDY((LIST)BDY(node));
+          spec->module_rank = rank = length(base_ord);
+          spec->module_base_ord = (int *)MALLOC_ATOMIC((rank+1)*sizeof(int));
+          for ( i = 1, t = base_ord; i <= rank; i++, t = NEXT(t) )
+            spec->module_base_ord[ZTOS((Q)BDY(t))] = i;
+          break;
+        } else {  /* weighted order * [n,[wv,wm],ord] */
           int ordtype;
 
           ordtype = spec->module_ordtype;