Comment by rspeer
7 years ago
I saw a tweet about what it looks like (in some piece of software that at least manages to render something): https://twitter.com/BagusAlexandria/status/95347388267712921...
The fact that the embellished t's form these big overlapping blocks makes me think that it's hitting the worst-case behavior of some text layout algorithm.
I don't understand what all the hex digits and apostrophes are for, though.
I don't have a spare ios system at hand right now to do more testing on this bug (if the bug is inside the library code and not at the API level, then an emulator usually would not be able to replicate the problem in the same way a real system produces)...
hence I can only make guesses...if I had a spare one, I would try to modify the content of code and see what would happen (do things such as reducing the code size -- most of the code are repetitive -- and see what would happen if we only retain the core part; or only retain the first half of the entire code -- those 0xCC and 0xCD part; or only retain the second half, those displayable ascii chars)...trim the code down to smaller units and test on them individually (in the same sense as modular testing).
each displayed lines of characters in that twitter image is exactly the same...they only shift their position a bit.
it looks like the black shades over the character lines are the vestiges left by the non-ascii characters at the beginning of the code.
the displayed part is not just ascii hex and apostrophes characters, there are also punctuation characters there...My guess is that if they are displayed, then that means the system has already successfully handled them and their triggered actions have been contained in defined system behaviors...