Update of /cvsroot/py-howto/pyhowto
In directory usw-pr-cvs1:/tmp/cvs-serv12586
Modified Files:
python-22.tex
Log Message:
Fill out the Unicode section, somewhat uncertainly
Index: python-22.tex
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RCS file: /cvsroot/py-howto/pyhowto/python-22.tex,v
retrieving revision 1.14
retrieving revision 1.15
diff -C2 -r1.14 -r1.15
*** python-22.tex 2001/07/19 01:19:59 1.14
--- python-22.tex 2001/07/19 01:48:08 1.15
***************
*** 341,349 ****
Python's Unicode support has been enhanced a bit in 2.2. Unicode
strings are usually stored as UCS-2, as 16-bit unsigned integers.
! Python 2.2 can also be compiled to use UCS-4, 32-bit unsigned integers
! by supplying \longprogramopt{enable-unicode=ucs4} to the configure script.
! XXX explain surrogates? I have to figure out what the changes mean to users.
!
Since their introduction, Unicode strings have supported an
\method{encode()} method to convert the string to a selected encoding
--- 341,359 ----
Python's Unicode support has been enhanced a bit in 2.2. Unicode
strings are usually stored as UCS-2, as 16-bit unsigned integers.
! Python 2.2 can also be compiled to use UCS-4, 32-bit unsigned
! integers, as its internal encoding by supplying
! \longprogramopt{enable-unicode=ucs4} to the configure script. When
! built to use UCS-4, in theory Python could handle Unicode characters
! from U-00000000 to U-7FFFFFFF. Being able to use UCS-4 internally is
! a necessary step to do that, but it's not the only step, and in Python
! 2.2alpha1 the work isn't complete yet. For example, the
! \function{unichr()} function still only accepts values from 0 to
! 65535, and there's no \code{\e U} notation for embedding characters
! greater than 65535 in a Unicode string literal. All this is the
! province of the still-unimplemented PEP 261, ``Support for `wide'
! Unicode characters''; consult it for further details, and please offer
! comments and suggestions on the proposal it describes.
! Another change is much simpler to explain.
Since their introduction, Unicode strings have supported an
\method{encode()} method to convert the string to a selected encoding
***************
*** 375,382 ****
'furrfu'
\end{verbatim}
! References: http://mail.python.org/pipermail/i18n-sig/2001-June/001107.html
! and following thread.
%======================================================================
--- 385,399 ----
'furrfu'
\end{verbatim}
+
+ \method{encode()} and \method{decode()} were implemented by
+ Marc-Andr\'e Lemburg. The changes to support using UCS-4 internally
+ were implemented by Fredrik Lundh and Martin von L\"owis.
+
+ \begin{seealso}
! \seepep{261}{Support for `wide' Unicode characters}{PEP written by
! Paul Prescod. Not yet accepted or fully implemented.}
+ \end{seealso}
%======================================================================
|
