Refactored ExecutionContext serialization (added sheerkapickle) and added History management

src/core/utils.py

@@ -228,6 +228,7 @@ def escape_char(text, to_escape):
 
     return res
 
+
 def pp(items):
     if not hasattr(items, "__iter__"):
         return str(items)
@@ -236,3 +237,66 @@ def pp(items):
         return str(items)
 
     return "    \n" + "    \n".join(str(item) for item in items)
+
+
+def decode_concept(concept_repr):
+    """
+    if concept_repr is like :c:key:id:
+    return the key and the id
+    :param concept_repr:
+    :return:
+    """
+    if not (concept_repr and isinstance(concept_repr, str) and concept_repr.startswith(":c:")):
+        return None, None
+
+    i = 3
+    length = len(concept_repr)
+    key = ""
+    while i < length:
+        if concept_repr[i] == ":":
+            break
+        key += concept_repr[i]
+        i += 1
+    else:
+        return None, None
+
+    i += 1
+    if i >= length:
+        return key, None
+
+    id = ""
+    while i < length:
+        if concept_repr[i] == ":":
+            break
+        id += concept_repr[i]
+        i += 1
+    else:
+        return None, None
+
+    return key, id
+
+
+def decode_enum(enum_repr: str):
+    """
+    Tries to transform ClassName.Name into an enum
+    :param enum_repr:
+    :return:
+    """
+    if not (enum_repr and isinstance(enum_repr, str)):
+        return None
+
+    try:
+        idx = enum_repr.rindex(".")
+        if idx == len(enum_repr):
+            return None
+
+        cls_name = enum_repr[:idx]
+        cls = get_class(cls_name)
+        name = enum_repr[idx + 1:]
+        return cls[name]
+
+    except ValueError:
+        return None
+
+    except TypeError:
+        return None