While working on a new xml implementation I came cross "control
characters (CC)". [1]
When trying to validate/convert an utf string these lead to
exceptions, because they are not valid utf character.
Unfortunately, some of these characters are allowed to appear in
valid xml 1.* documents.
I currently see two option how to go about it:
1. Do not allow non CCs that do not work with existing
functionality.
1.Pros
* easy
1.Cons
* the resulting xml implementation will not be xml 1.* complete
2. Add special cases to the existing functionality to handle CCs
that are allowed in 1.0.
2.Pros
* the resulting xml implementation will be xml 1.* complete
2.Cons
* will make utf de/encoding slower as I would need to add
additional logic
Any other ideas, feedback?
[1] https://en.wikipedia.org/wiki/C0_and_C1_control_codes
