[issue10733] plistlib rejects strings containing control characters

[Behdad Esfahbod]

Behdad Esfahbod added the comment:

> Replacing all control characters by entities before trying to parse the Plist XML would likely be the best way forward. 

That wouldn't work.  Control characters are disallowed in XML's character set, so they are invalid even if input as entities.

Unfortunately this causes a lot of trouble for clients [0], because it means that XML cannot represent the full Unicode repertoire.  I'm curious about alternates.  Perhaps the expat module can be extended to allow recovering from this if the client chooses to...

[0] eg. https://github.com/behdad/fonttools/issues/249

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nosy: +Behdad.Esfahbod

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<http://bugs.python.org/issue10733>
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