===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/parse/parse.y,v
retrieving revision 1.19
retrieving revision 1.29
diff -u -p -r1.19 -r1.29
--- OpenXM_contrib2/asir2000/parse/parse.y	2003/05/20 06:15:01	1.19
+++ OpenXM_contrib2/asir2000/parse/parse.y	2005/09/13 06:40:46	1.29
@@ -45,7 +45,7 @@
  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
  *
- * $OpenXM: OpenXM_contrib2/asir2000/parse/parse.y,v 1.18 2003/05/16 09:34:50 noro Exp $ 
+ * $OpenXM: OpenXM_contrib2/asir2000/parse/parse.y,v 1.28 2005/08/24 06:28:39 noro Exp $ 
 */
 %{
 #define malloc(x) GC_malloc(x)
@@ -67,7 +67,7 @@ extern int gdef,mgdef,ldef;
 extern SNODE parse_snode;
 extern int main_parser, allow_create_var;
 
-int prresult;
+int prresult,saveresult;
 
 static int ind;
 static FNODE t;
@@ -89,9 +89,10 @@ extern jmp_buf env;
 	pointer p;
 }
 
-%token <i> STRUCT POINT NEWSTRUCT ANS FDEF PFDEF MODDEF MODEND 
-%token <i> GLOBAL MGLOBAL LOCAL LOCALF CMP OR AND CAR CDR QUOTED
+%token <i> STRUCT POINT NEWSTRUCT ANS FDEF PFDEF MODDEF MODEND
+%token <i> GLOBAL MGLOBAL LOCAL LOCALF CMP OR AND CAR CDR QUOTED COLONCOLON
 %token <i> DO WHILE FOR IF ELSE BREAK RETURN CONTINUE PARIF MAP RECMAP TIMER GF2NGEN GFPNGEN GFSNGEN GETOPT
+%token <i> UNIFY
 %token <i> FOP_AND FOP_OR FOP_IMPL FOP_REPL FOP_EQUIV FOP_NOT LOP
 %token <p> FORMULA UCASE LCASE STR SELF BOPASS
 %token <p> '+' '-' '*' '/' '^' '%'
@@ -103,6 +104,7 @@ extern jmp_buf env;
 
 %right '=' BOPASS
 %right '?' ':'
+%left '`'
 %right FOP_NOT
 %left FOP_EQUIV
 %left FOP_REPL
@@ -127,7 +129,13 @@ extern jmp_buf env;
 %%
 
 start 	: stat
-			{ parse_snode = $1; YYACCEPT; }
+			{ 
+				parse_snode = $1; 
+				if ( yychar >= 0 ) 
+					fprintf(stderr,
+						"Warning: a token was wasted after an 'if' statement without 'else'.\n");
+				YYACCEPT; 
+			}
 	  	;
 stat 	: tail
 			{ $$ = 0; }
@@ -162,21 +170,25 @@ stat 	: tail
 		| WHILE '(' node ')' stat
 			{ $$ = mksnode(5,S_FOR,$1,0,$3,0,$5); $5?$$->ln=$5->ln:0; NOPR; }
 		| DO stat WHILE '(' node ')' tail
-			{ $$ = mksnode(3,S_DO,$1,$2,$5); }
+			{ $$ = mksnode(3,S_DO,$1,$2,$5); NOPR; }
 		| LCASE '(' node ')' ':' '=' expr tail
 			{ $$ = mksnode(3,S_PFDEF,$1,$3,$7); NOPR; }
-		| PFDEF LCASE '(' node ')'
+		| PFDEF LCASE '(' node ')' tail
 			{ $$ = mksnode(3,S_PFDEF,$2,$4,0); NOPR; }
 		| FDEF LCASE { mkpvs($2); } '(' { ldef = 1; } node { ldef = -1; } ')' desc '{' stats '}'
 			{
 				mkuf($2,asir_infile->name,$6,
 					mksnode(1,S_CPLX,$11),$1,asir_infile->ln,$9,CUR_MODULE); 
-				$$ = 0; NOPR; 
+				$$ = 0; NOPR;
 			}
 		| MODDEF LCASE tail
-			{ CUR_MODULE = mkmodule($2); MPVS = CUR_MODULE->pvs; $$ = 0; NOPR; }
+			{ 
+				CUR_MODULE = mkmodule($2);
+				MPVS = CUR_MODULE->pvs; 
+				$$ = mksnode(1,S_MODULE,CUR_MODULE); NOPR;
+			}
 		| MODEND tail
-			{ CUR_MODULE = 0; MPVS = 0; $$ = 0; NOPR; }
+			{ CUR_MODULE = 0; MPVS = 0; $$ = mksnode(1,S_MODULE,0); NOPR; }
 	  	| error tail
 			{ yyerrok; $$ = 0; }
 		;
@@ -260,13 +272,7 @@ pexpr	: STR
 					if ( f )
 						$$ = mkfnode(2,I_FUNC,f,mkfnode(1,I_LIST,0));
 					else {
-						searchf(sysf,$1,&f); 
-						if ( !f )
-							searchf(ubinf,$1,&f);
-						if ( !f )
-							searchpf($1,&f);
-						if ( !f )
-							searchf(usrf,$1,&f);
+						gen_searchf_searchonly($1,(FUNC *)&f);
 						if ( f )
 							makesrvar(f,(P *)&val);
 						else
@@ -301,6 +307,10 @@ pexpr	: STR
 				print_crossref(val);
 				$$ = mkfnode(2,I_RECMAP,val,mkfnode(1,I_LIST,$5));
 			}
+		| UNIFY '(' expr ',' expr ')' 
+			{
+				$$ = mkfnode(2,I_UNIFY,$3,$5);
+			}
 		| LCASE '{' node '}' '(' node ')' 
 			{
 				searchpf($1,(FUNC *)&val);
@@ -336,6 +346,20 @@ pexpr	: STR
 			{
 				$$ = mkfnode(2,I_IFUNC,$3,mkfnode(1,I_LIST,$6));
 			}	
+		| UCASE '(' node ')'
+			{
+				if ( main_parser || allow_create_var )
+					t = mkfnode(2,I_PVAR,makepvar($1),0);
+				else {
+					ind = searchpvar($1);
+					if ( ind == -1 ) {
+						fprintf(stderr,"%s : no such variable.\n",$1);
+						YYABORT;
+					} else
+						t = mkfnode(2,I_PVAR,ind,0);
+				}
+				$$ = mkfnode(2,I_IFUNC,t,mkfnode(1,I_LIST,$3));
+			}	
 		| CAR '(' expr ')'
 			{ $$ = mkfnode(1,I_CAR,$3); }
 		| CDR '(' expr ')'
@@ -428,5 +452,7 @@ expr 	: pexpr
 			{ $$ = mkfnode(1,I_NEWCOMP,(int)structtoindex($3)); }
 		| QUOTED '(' expr ')'
 			{ MKQUOTE(quote,$3); $$ = mkfnode(1,I_FORMULA,(pointer)quote); }
+		| '`' expr
+			{ MKQUOTE(quote,$2); $$ = mkfnode(1,I_FORMULA,(pointer)quote); }
 	 	;
 %%