Improved regex

Author: HiddeElzinga

decoimpact/data/entities/data_access_layer.py

@@ -217,13 +217,13 @@ def __create_yaml_loader(self):
         loader.add_implicit_resolver(
             "tag:yaml.org,2002:float",
             re.compile(
-                """^(?:
-            [-+]?(?:[0-9][0-9_]*)\\.[0-9_]*(?:[eE][-+]?[0-9]+)?
-            |[-+]?(?:[0-9][0-9_]*)(?:[eE][-+]?[0-9]+)
-            |\\.[0-9_]+(?:[eE][-+][0-9]+)?
-            |[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\\.[0-9_]*
-            |[-+]?\\.(?:inf|Inf|INF)
-            |\\.(?:nan|NaN|NAN))$""",
+                r"""^(?:
+            [-+]?(?:\d[\d_]*)\.[0-9_]*(?:[eE][-+]?\d+)?
+            |[-+]?(?:\d[\d_]*)(?:[eE][-+]?\d+)
+            |\.[\d_]+(?:[eE][-+]\d+)?
+            |[-+]?\d[\d_]*(?::[0-5]?\d)+\.[\d_]*
+            |[-+]?\.(?:inf|Inf|INF)
+            |\.(?:nan|NaN|NAN))$""",
                 re.X,
             ),
             list("-+0123456789."),