+def sort_bits(obj, keys_with_bits=[]):
+ """
+ Rearrange string values of list bits names in alphabetical order.
+
+ This function looks at dict items with known keys.
+ If the value is string, space-separated names are sorted.
+ This function is recursive over dicts and lists.
+ Current implementation performs re-arranging in-place (to save memory),
+ so it is not required to store the return value.
+
+ The intended usage is for composite objects which contain
+ OrderedDict elements. The implementation makes sure that ordering
+ (dictated by keys) is preserved. Support for generic dicts is an added value.
+
+ Sadly, dict (at least in Python 2.7) does not have __updatevalue__(key) method
+ which would guarantee iteritems() is not affected when value is updated.
+ Current "obj[key] = value" implementation is safe for dict and OrderedDict,
+ but it may be not safe for other subclasses of dict.
+
+ TODO: Should this docstring include links to support dict and OrderedDict safety?
+ """
+ if isinstance(obj, dict):
+ for key, value in obj.iteritems():
+ # Unicode is not str and vice versa, isinstance has to check for both.
+ # Luckily, "in" recognizes equivalent strings in different encodings.
+ # Type "bytes" is added for Python 3 compatibility.
+ if key in keys_with_bits and isinstance(value, (unicode, str, bytes)):
+ obj[key] = " ".join(sorted(value.split(" ")))
+ else:
+ sort_bits(value, keys_with_bits)
+ # A string is not a list, so there is no risk of recursion over characters.
+ elif isinstance(obj, list):
+ for item in obj:
+ sort_bits(item, keys_with_bits)
+ return obj
+
+
+def normalize_json_text(text, strict=False, indent=1, keys_with_bits=[]):