[PyQt] QString to str auto-conversion issue with SMP codepoints

[Shriramana Sharma]

Hello. Please see the attached test code. I have PyQt4 4.10.3 on Qt4
4.8.4 on my Kubuntu Saucy system.

I need to be able to handle SMP codepoints in my application.

For instance
𑀅 U+11005 BRAHMI LETTER A
(I hope the SMP character arrives at your inbox correctly!)

Inserting the above character into the QPlainTextBox and clicking Render prints:

len of string: 2
repr of string: '\ud804\udc05'

IIUC, with Py 3 (or is it after a certain version of PyQt, I forget),
PyQt automatically converts Qt's QStrings to Python strings. QStrings
use UTF-16 and hence any SMP characters input into textboxes and such
are converted to the equivalent surrogate pair.

However, the surrogates are in themselves useless except as a pair to
represent the trans-BMP codepoint. So I'd like to see PyQt4
auto-handle this when converting QStrings to actual usable Unicode
codepoints, especially to convert surrogate

That is, I'd like to get a length 1 string '\U00011005' and not a
length 2 string '\ud804\udc05'.

Or if it would be performance-wise costly for PyQt to auto-convert
every QString this way, I'd like to know what is an easy way to
process the resultant string to get my desired form.

Thanks!

-- 
Shriramana Sharma ஶ்ரீரமணஶர்மா श्रीरमणशर्मा
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