4 files changed, 17 insertions, 15 deletions
diff --git a/node.c b/node.c
index c52b101..e1b7920 100644
--- a/node.c
+++ b/node.c
@@ -6,10 +6,10 @@
 #include "node.h"
 
 /*constructor*/
-node_t* mknode(str)
+node* mknode(str)
 char *str;
 {
-	node_t *p = malloc(sizeof(node_t));
+	node *p = malloc(sizeof(node));
 	assert(p);
 
 	p->name = strdup(str);
@@ -19,11 +19,11 @@ char *str;
 }
 
 /* helpers */
-node_t* search(root, str)
-node_t *root;
+node* search(root, str)
+node *root;
 char *str;
 {
-	node_t *p = root;
+	node *p = root;
 	while (p) {
 		if (!strcmp(p->name, str)) {
 			return p;
@@ -33,11 +33,11 @@ char *str;
 	return NULL;
 }
 
-node_t* insert(root, str) /*TODO change to accept double pointer*/
-node_t *root;
+node* insert(root, str) /*TODO change to accept double pointer*/
+node *root;
 char * str;
 {
-	node_t *p = mknode( str );
+	node *p = mknode( str );
 	p->next = root;
 	return p;
 }
diff --git a/node.h b/node.h
index 97dc29e..5206db4 100644
--- a/node.h
+++ b/node.h
@@ -6,13 +6,14 @@
 typedef struct node_s {
 	char *name;
 	struct node_s *next;
-} node_t;
+	int var_type;
+} node;
 
 /*constructor*/
-node_t* mknode(char *);
+node* mknode(char *);
 
 /* helpers */
-node_t* search(node_t*, char *);
-node_t* insert(node_t*, char*);
+node* search(node*, char *);
+node* insert(node*, char*);
 
 #endif
diff --git a/tree.c b/tree.c
index eff6285..0301ec3 100644
--- a/tree.c
+++ b/tree.c
@@ -3,10 +3,10 @@
 #include <string.h>
 #include <assert.h>
 
+#include "node.h"
 #include "tree.h"
 #include "y.tab.h"
-
-extern void yyerror(char*);
+#include "pc.h"
 
 /* parse tree funcs */
 ptree* mktree(type, l, r)
@@ -47,7 +47,7 @@ float n;
 	return p;
 }
 
-ptree * mkop(type, sub, l, r)
+ptree* mkop(type, sub, l, r)
 int type, sub;
 ptree *l, *r;
 {
diff --git a/tree.h b/tree.h
index b7349af..b17c276 100644
--- a/tree.h
+++ b/tree.h
@@ -7,6 +7,7 @@ typedef struct parse_tree {
 		int ival; /* NUM */
 		float rval; /* RNUM */
 		char *sval; /* ID */
+		node *nval;
 		int opval; /* RELOP: LT LE GT GE EQ NE
 			      ADDOP: PLUS MINUS OR
 			      MULOP: MUL DIV