tiny refactor of validate_attachment_name for pattern matching

git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@750699 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 3 insertions, 5 deletions

diff --git a/src/couchdb/couch_httpd_db.erl b/src/couchdb/couch_httpd_db.erl
index 0ba8a873..005e32d1 100644
--- a/src/couchdb/couch_httpd_db.erl
+++ b/src/couchdb/couch_httpd_db.erl
@@ -720,13 +720,11 @@ validate_attachment_names(Doc) ->
 
 validate_attachment_name(Name) when is_list(Name) ->
     validate_attachment_name(list_to_binary(Name));
+validate_attachment_name(<<"_",_/binary>>) ->
+    throw({bad_request, <<"Attachment name can't start with '_'">>});
 validate_attachment_name(Name) ->
     case is_valid_utf8(Name) of
-        true -> 
-            case Name of
-                <<"_",_/binary>>=Name -> throw({bad_request, <<"Attachment name can't start with '_'">>});
-                _ -> Name
-            end;
+        true -> Name;
         false -> throw({bad_request, <<"Attachment name is not UTF-8 encoded">>})
     end.