===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/parse/quote.c,v
retrieving revision 1.7
retrieving revision 1.21
diff -u -p -r1.7 -r1.21
--- OpenXM_contrib2/asir2000/parse/quote.c	2004/03/03 09:25:30	1.7
+++ OpenXM_contrib2/asir2000/parse/quote.c	2005/04/07 08:33:12	1.21
@@ -1,4 +1,4 @@
-/* $OpenXM: OpenXM_contrib2/asir2000/parse/quote.c,v 1.6 2001/10/09 01:36:25 noro Exp $ */
+/* $OpenXM: OpenXM_contrib2/asir2000/parse/quote.c,v 1.20 2004/08/09 06:42:53 noro Exp $ */
 
 #include "ca.h"
 #include "parse.h"
@@ -49,7 +49,7 @@ void chsgnquote(QUOTE a,QUOTE *c)
 {
 	FNODE fn;
 
-	fn = mkfnode(3,I_BOP,subfs,0,BDY(a));
+	fn = mkfnode(1,I_MINUS,BDY(a));
 	MKQUOTE(*c,fn);
 }
 
@@ -158,9 +158,12 @@ void polytoquote(P a,QUOTE *c)
 	int n,i,sgn;
 	QUOTE v,r,s,u;
 
-	if ( !a || (OID(a) == O_N) ) {
+	if ( !a ) {
 		MKQUOTE(*c,mkfnode(1,I_FORMULA,(pointer)a));
 		return;
+	} else if ( OID(a) == O_N ) {
+		MKQUOTE(*c,mkfnode(1,I_FORMULA,(pointer)a));
+		return;
 	}
 	vartoquote(VR((P)a),&v);
 	dc = DC((P)a);
@@ -183,25 +186,29 @@ void polytoquote(P a,QUOTE *c)
 void dptoquote(DP a,QUOTE *c)
 {
 	MP t;
-	MP *m;
-	int i,n,nv;
+	MP m;
+	int i,n,nv,sgn;
 	QUOTE s,r,u;
 
 	if ( !a ) {
 		MKQUOTE(*c,mkfnode(1,I_FORMULA,(pointer)a));
 		return;
 	}
-	for ( t = BDY(a), n = 0; t; t = NEXT(t), n++ );
-	m = (MP *)ALLOCA(n*sizeof(MP));
-	for ( t = BDY(a), i = 0; t; t = NEXT(t), i++ )
-		m[i] = t;
 	nv = NV(a);
-	mptoquote(m[n-1],nv,&r);
-	for ( i = n-2; i >= 0; i-- ) {
-		mptoquote(m[i],nv,&s);
-		addquote(CO,s,r,&u);
+	m = BDY(a);
+	mptoquote(m,nv,&r,&sgn);
+	if ( sgn == -1 ) {
+		MKQUOTE(u,mkfnode(1,I_MINUS,BDY(r)));
 		r = u;
 	}
+	for ( m = NEXT(m); m; m = NEXT(m) ) {
+		mptoquote(m,nv,&s,&sgn);
+		if ( sgn < 0 )
+			subquote(CO,r,s,&u);
+		else
+			addquote(CO,r,s,&u);
+		r = u;
+	}
 	*c = r;
 }
 
@@ -232,7 +239,7 @@ void dctoquote(DCP dc,QUOTE v,QUOTE *q,int *sgn)
 			objtoquote((Obj)ONE,&r);	
 	} else {
 		objtoquote((Obj)c,&u);
-		if ( !NUM(c) && NEXT(DC(c)) ) {
+		if ( !NUM(c) && NEXT(DC(c)) && d ) {
 			MKQUOTE(t,mkfnode(1,I_PAREN,BDY(u)));
 			u = t;
 		}
@@ -250,16 +257,28 @@ void dctoquote(DCP dc,QUOTE v,QUOTE *q,int *sgn)
 	*q = r;
 }
 
-void mptoquote(MP m,int n,QUOTE *c)
+void mptoquote(MP m,int n,QUOTE *r,int *sgn)
 {
 	QUOTE s,u;
+	P c;
 	NODE t,t1;
 	FNODE f;
 	Q q;
 	DL dl;
 	int i;
 
-	objtoquote((Obj)C(m),&s);
+	if ( mmono(C(m)) ) {
+		chsgnp(C(m),&c);
+		*sgn = -1;
+	} else {
+		c = C(m);
+		*sgn = 1;
+	}
+	objtoquote((Obj)c,&s);
+	if ( !NUM(c) && NEXT(DC(c)) ) {
+		MKQUOTE(u,mkfnode(1,I_PAREN,BDY(s)));
+		s = u;
+	}
 	dl = m->dl;
 	for ( i = n-1, t = 0; i >= 0; i-- ) {
 		STOQ(dl->d[i],q);
@@ -268,7 +287,10 @@ void mptoquote(MP m,int n,QUOTE *c)
 		t = t1;
 	}
 	MKQUOTE(u,mkfnode(1,I_EV,t));
-	mulquote(CO,s,u,c);
+	if ( UNIQ(c) )
+		*r = u;
+	else
+		mulquote(CO,s,u,r);
 }
 
 void vartoquote(V v,QUOTE *c)
@@ -276,7 +298,7 @@ void vartoquote(V v,QUOTE *c)
 	P x;
 	PF pf;
 	PFAD ad;
-	QUOTE a,b;
+	QUOTE a,b,u;
 	int i;
 	FUNC f;
 	NODE t,t1;
@@ -290,7 +312,17 @@ void vartoquote(V v,QUOTE *c)
 		ad = ((PFINS)v->priv)->ad;
 		if ( !strcmp(NAME(pf),"pow") ) {
 			/* pow(a,b) = a^b */
-			objtoquote(ad[0].arg,&a); objtoquote(ad[1].arg,&b);
+			objtoquote(ad[0].arg,&a);
+			x = (P)ad[0].arg;
+			/* check whether x is a variable */
+			if ( x && OID(x)==O_P && !NEXT(DC(x))
+				&& UNIQ(DEG(DC(x))) && UNIQ(COEF(DC(x))) ) {
+				/* use a as is */
+			} else {
+				/* a => (a) */
+				MKQUOTE(u,mkfnode(1,I_PAREN,BDY(a))); a = u;
+			}
+			objtoquote(ad[1].arg,&b);
 			pwrquote(CO,a,b,c);
 		} else {
 			for ( i = 0; i < pf->argc; i++ )
@@ -308,4 +340,221 @@ void vartoquote(V v,QUOTE *c)
 			MKQUOTE(*c,mkfnode(2,I_FUNC,f,mkfnode(1,I_LIST,t)));
 		}
 	}
+}
+
+/* 
+ * A_arf : arithmetic function
+ * A_int : machine integer
+ * A_fnode : FNODE
+ * A_node : NODE with FNODE bodies
+ * A_internal : internal object
+ * A_str : string
+ * A_end : terminal
+ * A_func : FUNC
+ * A_notimpl : not implemented
+ */
+
+struct fid_spec fid_spec_tab[] = {
+	{I_BOP,A_arf,A_fnode,A_fnode,A_end},
+	{I_COP,A_int,A_fnode,A_fnode,A_end},
+	{I_AND,A_fnode,A_fnode,A_end},
+	{I_OR,A_fnode,A_fnode,A_end},
+	{I_NOT,A_fnode,A_end},
+	{I_CE,A_fnode,A_fnode,A_end},
+	{I_PRESELF,A_arf,A_fnode,A_end},
+	{I_POSTSELF,A_arf,A_fnode,A_end},
+	{I_FUNC,A_func,A_fnode,A_end},
+	{I_FUNC_OPT,A_func,A_fnode,A_fnode,A_end},
+	{I_IFUNC,A_fnode,A_fnode,A_end},
+	{I_MAP,A_func,A_fnode,A_end},
+	{I_RECMAP,A_func,A_fnode,A_end},
+	{I_PFDERIV,A_notimpl,A_end},
+	{I_ANS,A_int,A_end},
+	{I_PVAR,A_int,A_node,A_end},
+	{I_ASSPVAR,A_fnode,A_fnode,A_end},
+	{I_FORMULA,A_internal,A_end},
+	{I_LIST,A_node,A_end},
+	{I_STR,A_str,A_end},
+	{I_NEWCOMP,A_int,A_end},
+	{I_CAR,A_fnode,A_end},
+	{I_CDR,A_fnode,A_end},
+	{I_CAST,A_notimpl,A_end},
+	{I_INDEX,A_fnode,A_node,A_end},
+	{I_EV,A_node,A_end},
+	{I_TIMER,A_fnode,A_fnode,A_fnode,A_end},
+	{I_GF2NGEN,A_end},
+	{I_GFPNGEN,A_end},
+	{I_GFSNGEN,A_end},
+	{I_LOP,A_int,A_fnode,A_fnode,A_end},
+	{I_OPT,A_str,A_fnode,A_end},
+	{I_GETOPT,A_str,A_end},
+	{I_POINT,A_fnode,A_str,A_end},
+	{I_PAREN,A_fnode,A_end},
+	{I_MINUS,A_fnode,A_end},
+	{I_NARYOP,A_notimpl,A_end}
+};
+
+#define N_FID_SPEC (sizeof(fid_spec_tab)/sizeof(struct fid_spec))
+
+void get_fid_spec(fid id,fid_spec_p *spec)
+{
+	int i;
+
+	for ( i = 0; i < N_FID_SPEC; i++ )
+		if ( fid_spec_tab[i].id == id ) {
+			*spec = &fid_spec_tab[i];
+			return;
+		}
+	*spec = 0;
+}
+
+FNODE strip_paren(FNODE f)
+{
+	if ( !f || f->id != I_PAREN ) return f;
+	else {
+		return strip_paren((FNODE)FA0(f));
+	}
+}
+
+NODE flatten_fnodenode(NODE n,char *opname);
+FNODE flatten_fnode(FNODE f,char *opname);
+
+NODE flatten_fnodenode(NODE n,char *opname)
+{
+	NODE r0,r,t;
+
+	r0 = 0;
+	for ( t = n; t; t = NEXT(t) ) {
+		NEXTNODE(r0,r);
+		BDY(r) = (pointer)flatten_fnode((FNODE)BDY(t),opname);
+	}
+	if ( r0 ) NEXT(r) = 0;
+	return r0;
+}
+
+FNODE flatten_fnode(FNODE f,char *opname)
+{
+	fid_spec_p spec;
+	farg_type *type;
+	fid id;
+	FNODE f1,f2,r;
+	int i;
+
+	if ( !f ) return f;
+	id = f->id;
+	get_fid_spec(id,&spec);
+	/* unknown fid */
+	if ( !spec ) return f;
+	if ( id == I_BOP && !strcmp(((ARF)FA0(f))->name,opname) ) {
+		f1 = (pointer)flatten_fnode(FA1(f),opname);
+		f1 = strip_paren(f1);
+		f2 = (pointer)flatten_fnode(FA2(f),opname);
+		f2 = strip_paren(f2);
+		if ( f1->id == I_BOP && !strcmp(((ARF)FA0(f1))->name,opname) ) {
+			/* [op [op A B] C] => [op A [op B C]] */
+			return mkfnode(3,I_BOP,(ARF)FA0(f),FA1(f1),
+				mkfnode(3,I_BOP,(ARF)FA0(f),FA2(f1),f2));
+		} else
+			return mkfnode(3,I_BOP,(ARF)FA0(f),f1,f2);
+	} else {
+		type = spec->type;
+		for ( i = 0; type[i] != A_end; i++ );
+		NEWFNODE(r,i); ID(r) = f->id;
+		for ( i = 0; type[i] != A_end; i++ ) {
+			if ( type[i] == A_fnode )
+				r->arg[i] = (pointer)flatten_fnode(f->arg[i],opname);
+			else if ( type[i] == A_node )
+				r->arg[i] = (pointer)flatten_fnodenode(f->arg[i],opname);
+			else
+				r->arg[i] = f->arg[i];
+		}
+		return r;
+	}
+}
+
+/* comparison of QUOTE */
+
+int compquote(VL vl,QUOTE q1,QUOTE q2)
+{
+	return compfnode(BDY(q1),BDY(q2));
+}
+
+/* comparison of QUOTEARG */
+/* XXX : executes a non-sense comparison for bodies */
+
+int compqa(VL vl,QUOTEARG q1,QUOTEARG q2)
+{
+	if ( !q1 ) return q2?-1:0;
+	else if ( !q2 ) return 1;
+	else if ( OID(q1) > OID(q2) ) return 1;
+	else if ( OID(q1) < OID(q2) ) return -1;
+	else if ( q1->type > q2->type ) return 1;
+	else if ( q1->type < q2->type ) return -1;
+	else switch ( q1->type ) {
+		case A_func:
+			return strcmp(((FUNC)q1->body)->name,((FUNC)q2->body)->name);		
+		case A_arf:
+			return strcmp(((ARF)q1->body)->name,((ARF)q2->body)->name);		
+		default:
+			if ( (unsigned)q1->body  > (unsigned)q2->body ) return 1;
+			else if ( (unsigned)q1->body  < (unsigned)q2->body ) return -1;
+			else return 0;
+	}
+}
+
+int compfnode(FNODE f1,FNODE f2)
+{
+	fid_spec_p spec;
+	int t,s1,s2,i;
+	NODE n1,n2;
+
+	if ( !f1 ) return f2 ? -1 : 1;
+	else if ( !f2 ) return 1;
+    else if ( f1->id > f2->id ) return 1;
+	else if ( f1->id < f2->id ) return -1;
+	spec = fid_spec_tab+f1->id;
+	for ( i = 0; spec->type[i] != A_end; i++ ) {
+		switch ( spec->type[i] ) {
+			case A_fnode:
+				return compfnode((FNODE)f1->arg[i],(FNODE)f2->arg[i]);
+				break;
+			case A_int:
+				s1 = (int)f1->arg[i];
+				s2 = (int)f2->arg[i];
+				if ( s1 > s2 ) return 1;
+				else if ( s1 < s2 ) return -1;
+				break;
+			case A_str:
+				t = strcmp((char *)f1->arg[i],(char *)f2->arg[i]);
+				if ( t ) return t;
+				break;
+			case A_internal:
+				t = arf_comp(CO,(Obj)f1->arg[i],(Obj)f2->arg[i]);
+				if ( t ) return t;
+				break;
+			case A_node:
+				n1 = (NODE)f1->arg[i];
+				n2 = (NODE)f2->arg[i];
+				for ( ; n1 && n2; n1 = NEXT(n1), n2 = NEXT(n2) ) {
+					t = compfnode(BDY(n1),BDY(n2));
+					if ( t ) return t;
+				}
+				if ( n1 ) return 1;
+				else if ( n2 ) return -1;
+				break;
+			case A_arf:
+				 t = strcmp(((ARF)f1->arg[i])->name,((ARF)f2->arg[i])->name);
+				if ( t ) return t;
+				break;
+			case A_func:
+				 t = strcmp(((FUNC)f1->arg[i])->name,((FUNC)f2->arg[i])->name);
+				if ( t ) return t;
+				break;
+			case A_notimpl:
+			default:
+				error("compfnode : not implemented");
+				break;
+		}
+	}
+	return 0;
 }