[Peter Funk] > > > > Do we need a UserString class? > > > > Andy Robinson: > > > This will probably be useful on top of the i18n stuff in due course, > > > so I'd like it. > > > > > > Something Mike Da Silva and I have discussed a lot is implementing a > > > higher-level 'typed string' library on top of the Unicode stuff. > > > A 'typed string' is like a string, but knows what encoding it is in - > > > possibly Unicode, possibly a native encoding and embodies some basic > > > type safety and convenience notions, like not being able to add a > > > Shift-JIS and an EUC string together. Iteration would always be per > > > character, not per byte; and a certain amount of magic would say that > > > if the string was (say) Japanese, it would acquire a few extra methods > > > for doing some Japan-specific things like expanding half-width > > > katakana. > > > > > > Of course, we can do this anyway, but I think defining the API clearly > > > in UserString is a great idea. > > > Guido van Rossum: > > Agreed. Please somebody send a patch! [PF] > I feel unable to do, what Andy proposed. What I had in mind was a > simple wrapper class around the builtin string type similar to > UserDict and UserList which can be used to derive other classes from. Yes. I think Andy wanted his class to be a subclass of UserString. > I use UserList and UserDict quite often and find them very useful. > They are simple and powerful and easy to extend. Agreed. > May be the things Andy Robinson proposed above belong into a sub class > which inherits from a simple UserString class? Do we need > an additional UserUnicode class for unicode string objects? It would be great if there was a single UserString class which would work with either Unicode or 8-bit strings. I think that shouldn't be too hard, since it's just a wrapper. So why don't you give the UserString.py a try and leave Andy's wish alone? --Guido van Rossum (home page: http://www.python.org/~guido/)
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