Alexander Belopolsky <belopol...@users.sourceforge.net> added the comment:
On Fri, Nov 26, 2010 at 7:27 PM, Eric Smith <rep...@bugs.python.org> wrote:
..
>
> In addition to the proposed Py_UNICODE_NEXT and Py_UNICODE_PUT_NEXT,
> > str.__format__ would also need a function that tells it how many Py_UNICODEs
> are needed to store a given Py_UCS4.
Yes, this functionality is currently hidden in
unicode_aswidechar(PyUnicodeObject *unicode,
wchar_t *w,
Py_ssize_t size):
/* Helper function for PyUnicode_AsWideChar() and
PyUnicode_AsWideCharString():
convert a Unicode object to a wide character string.
- If w is NULL: return the number of wide characters (including the
nul
character) required to convert the unicode object. Ignore size argument.
.. */
and I believe is reimplemented in a few other places.
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<http://bugs.python.org/issue10542>
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