diff --git a/src/compile.c b/src/compile.c
index 3727db9..ad2d314 100644
--- a/src/compile.c
+++ b/src/compile.c
@@ -145,7 +145,7 @@ char* compile_gensplit(tSyntaxElement* se, char* operator) {
 		if (token->next != NULL) {
 
 			if (token->next->type == TOKEN)
-				string_append_free(&result,token->next->content.string);
+				string_append(&result,token->next->content.string);
 			else
 				string_append(&result,compile_expression_wrapped(token->next));
 
@@ -266,19 +266,23 @@ char* compile_expression(tSyntaxElement* syntaxelement) {
 					}
 
 					case STRING:
+						return NULL;
 					case NONE:
 					case NEWTREE:
-						return NULL;	
+						string_append(&result, "()");
+						break;
 				}
 
+			} else {
+				string_append(&result, "()");
 			}
 
 			break;
 
 		case NEWTREE:
 		case NONE:
-			free(result);
-			return NULL;
+			string_append(&result, "()");
+			break;
 
 	}
 
@@ -367,6 +371,25 @@ char* compile(tSyntaxElement* syntaxtree) {
 
 					}
 
+				} else if (strcmp(token->content.string, "fn") == 0) {
+
+					compile_enter_tag(&result);
+
+					string_append(&result, "macro ");
+					string_append_free(&result, compile_expression(token->next));
+
+					compile_exit_tag(&result);
+
+
+					string_append_free(&result, compile(token->next->next));
+
+
+					compile_enter_tag(&result);
+
+					string_append(&result, "endmacro");
+
+					compile_exit_tag(&result);
+
 				} else if (strcmp(token->content.string, "verbatim") == 0) {
 
 					compile_enter_tag(&result);
@@ -383,6 +406,18 @@ char* compile(tSyntaxElement* syntaxtree) {
 					string_append(&result, " endverbatim");
 					compile_exit_tag(&result);
 
+				} else if (strcmp(token->content.string, "assert") == 0) {
+
+					compile_enter_tag(&result);
+					string_append(&result, "require ");
+
+					string_append_free(&result, compile_expression(token->next));
+
+					string_append(&result, " returning ");
+
+					string_append_free(&result, compile_expression(token->next->next));
+					compile_exit_tag(&result);
+
 				} else {
 
 					string_append(&result, "{#");
diff --git a/src/process.c b/src/process.c
index 68ceb99..77d72cd 100644
--- a/src/process.c
+++ b/src/process.c
@@ -85,7 +85,7 @@ bool process_find(tSyntaxElement* tree, tProcessingData** p_pdata) {
 
 				deffound = true;
 
-			} else if (strcmp(token->content.string,"fn") == 0 && 
+			} else if (strcmp(token->content.string,"#fn") == 0 && 
 			           token->next != NULL && token->next->type == TOKEN &&
 			           token->next->next != NULL && se_istraversable(token->next->next) &&
 				   token->next->next->next != NULL) {