diff --git a/examples/test.modal b/examples/test.modal
index 9438b4b..1e92471 100644
--- a/examples/test.modal
+++ b/examples/test.modal
@@ -1,3 +1,4 @@
-<> (copy ?x) (?x ?x)
+<> (?x dup) (?x ?x)
+<> (?x ?y swap) (?y ?x)
 
-(copy ABC)
\ No newline at end of file
+(A B swap) dup
\ No newline at end of file
diff --git a/src/modal.c b/src/modal.c
index b6b8203..ec1ca27 100644
--- a/src/modal.c
+++ b/src/modal.c
@@ -74,7 +74,6 @@ save(void)
 static int
 rewrite(void)
 {
-
 	char c, *p = prog;
 	while((c = *p)) {
 		int i;
@@ -107,10 +106,8 @@ static void
 print_rules(void)
 {
 	int i;
-	for(i = 0; i < rules_len; i++) {
-		Rule *r = &rules[i];
-		printf("Rule #%d: %s -> %s\n", i, r->a, r->b);
-	}
+	for(i = 0; i < rules_len; i++) 
+		printf("Rule #%d: %s -> %s\n", i, rules[i].a, rules[i].b);
 	printf("\n");
 }
 
@@ -158,19 +155,19 @@ static int
 parse(char *path)
 {
 	FILE *f;
-	char c, token[0x40], *tokptr;
+	char c, token[0x40], *token_;
 	if(!(f = fopen(path, "r")))
 		return !printf("Invalid file: %s\n", path);
-	tokptr = token;
+	token_ = token;
 	while(f && fread(&c, 1, 1, f)) {
 		if(c < 0x21)
-			*tokptr++ = 0x00, tokenize(token, f), tokptr = token;
-		else if(tokptr - token < 0x3f)
-			*tokptr++ = c;
+			*token_++ = 0x00, tokenize(token, f), token_ = token;
+		else if(token_ - token < 0x3f)
+			*token_++ = c;
 		else
 			return printf("Token too long: %s\n", token);
 	}
-	*tokptr++ = 0x00, tokenize(token, f), tokptr = token;
+	*token_++ = 0x00, tokenize(token, f), token_ = token;
 	fclose(f);
 	return 1;
 }