dc fields specifications (authors split + type is not multiple)

[librarian.git] / librarian / functions.py

diff --git a/librarian/functions.py b/librarian/functions.py
index e91d7e1..40f06cd 100644 (file)
--- a/librarian/functions.py
+++ b/librarian/functions.py
@@ -115,3 +115,17 @@ def reg_texcommand():
     _register_function(texcommand)
 
 
+def reg_get(format_):
+    def get(context, *args):
+        obj = format_
+        for arg in args:
+            if hasattr(obj, arg):
+                obj = getattr(obj, arg)
+            else:
+                try:
+                    obj = obj[arg]
+                except (TypeError, KeyError), e:
+                    # Just raise proper AttributeError.
+                    getattr(obj, arg)
+        return obj
+    _register_function(get)