added more error report

1 files changed, 4 insertions, 3 deletions

diff --git a/main.cpp b/main.cpp
index 31d7943..e8fe418 100644
--- a/main.cpp
+++ b/main.cpp
@@ -23,11 +23,12 @@ int main() {
 
     while (1)
     {
-        Cons *tree = ast->absorb(tk);
-        if (!tree) break;
-        //tree_print(tree);
+        printf("Sonsi> ");
         try
         {
+            Cons *tree = ast->absorb(tk);
+            if (!tree) break;
+            //tree_print(tree);
             printf("%s\n", eval->run_expr(tree)->ext_repr().c_str());
         }
         catch (GeneralError &e)