[feat]: include / in handle_& function (#34)

- Added corresponding unit test

Author: mbaak

emm/preprocessing/functions.py

@@ -74,9 +74,9 @@ def map_shorthands(name):
         "remove_extra_space": F.regex_replace(r"""\s+""", " ", simple=True),
         # Map all the shorthands to the same format (stichting => stg)
         "map_shorthands": map_shorthands,
-        # Merge & separated abbreviations by removing & and the spaces between them
+        # Merge & or / separated abbreviations by removing & or / and the spaces between them
         "merge_&": F.regex_replace(
-            r"(\s|^)(\w)\s*&\s*(\w)(\s|$)", r"$1$2$3$4" if use_spark else r"\1\2\3\4", simple=True
+            r"(\s|^)(\w)\s*[&/]\s*(\w)(\s|$)", r"$1$2$3$4" if use_spark else r"\1\2\3\4", simple=True
         ),
         # remove legal form
         "remove_legal_form": F.run_custom_function(

tests/unit/test_name_preprocessing.py

@@ -52,7 +52,7 @@
             ["Tzu-Sun_BV.a;b,c_ä", "ąćęłńóśźżĄĆĘŁŃÓŚŹŻ", "Café"],
             ["Tzu-Sun_BV.a;b,c_a", "acelnoszzACELNOSZZ", "Cafe"],
         ),
-        ("merge_&", ["xyz & abc C&D"], ["xyz & abc CD"]),
+        ("merge_&", ["xyz & abc C&D", "foobar S/A"], ["xyz & abc CD", "foobar SA"]),
         (
             "preprocess_name",
             ["Tzu-Sun_BV.a;b,c_ä", "Tzu-Sun_BV  morethan1space"],