unsupported file format exception

1 files changed, 5 insertions, 2 deletions

diff --git a/bsie/reader/chain.py b/bsie/reader/chain.py
index 8e900e1..db7c2d5 100644
--- a/bsie/reader/chain.py
+++ b/bsie/reader/chain.py
@@ -73,13 +73,16 @@ class ReaderChain(base.Reader, typing.Generic[T_CONTENT]):
         return hash((super().__hash__(), self._children))
 
     def __call__(self, path: str) -> T_CONTENT:
+        raise_error = errors.UnsupportedFileFormatError
         for child in self._children:
             try:
                 return child(path)
+            except errors.UnsupportedFileFormatError:
+                pass
             except errors.ReaderError:
                 # child cannot read the file, skip.
-                pass
+                raise_error = errors.ReaderError # type: ignore [assignment] # mypy is confused
 
-        raise errors.ReaderError(path)
+        raise raise_error(path)
 
 ## EOF ##