add hooks for redirecting main output

1 files changed, 2 insertions, 1 deletions

diff --git a/tools/utils.h b/tools/utils.h
index 1e6ac9d..0ef0fca 100644
--- a/tools/utils.h
+++ b/tools/utils.h
@@ -67,8 +67,9 @@ public:
     argv.pop_front();
     return rslt;
   }
-  void next(){
+  std::string next(){
     current_arg = shift();
+    return current_arg;
   }
   size_t size() const {
     return argv.size();