[Python-checkins] python/nondist/peps pep-0278.txt,1.6,1.7

[jackjansen@sourceforge.net]

Update of /cvsroot/python/python/nondist/peps
In directory usw-pr-cvs1:/tmp/cvs-serv28129

Modified Files:
	pep-0278.txt 
Log Message:
- Fixed a typo
- Return a tuple of newlines in stead of 'mixed'
- Added rationale for having the code in ifdefs and not having the
  newlines attribute in --without-universal-newlines builds.


Index: pep-0278.txt
===================================================================
RCS file: /cvsroot/python/python/nondist/peps/pep-0278.txt,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -d -r1.6 -r1.7
*** pep-0278.txt	11 Apr 2002 15:44:08 -0000	1.6
--- pep-0278.txt	13 Apr 2002 22:16:49 -0000	1.7
***************
*** 31,35 ****
  Specification
  
!     Universal newline support needs to be enabled by default,
      but can be disabled during the configure of Python.
      
--- 31,35 ----
  Specification
  
!     Universal newline support is enabled by default,
      but can be disabled during the configure of Python.
      
***************
*** 50,60 ****
      
      There is no special support for output to file with a different
!     newline convention.
      
      A file object that has been opened in universal newline mode gets
      a new attribute "newlines" which reflects the newline convention
      used in the file.  The value for this attribute is one of None (no
!     newline read yet), "\r", "\n", "\r\n" or "mixed" (multiple
!     different types of newlines seen).
  
      
--- 50,60 ----
      
      There is no special support for output to file with a different
!     newline convention, and so mode "wU" is also illegal.
      
      A file object that has been opened in universal newline mode gets
      a new attribute "newlines" which reflects the newline convention
      used in the file.  The value for this attribute is one of None (no
!     newline read yet), "\r", "\n", "\r\n" or a tuple containing all the
!     newline types seen.
  
      
***************
*** 162,165 ****
--- 162,175 ----
      fgets() or fread() replacement routines, just some integer-valued
      flags, so the chances of core dumps are zero (he said:-).
+     
+     Universal newline support can be disabled during configure because it does
+     have a small performance penalty, and moreover the implementation has
+     not been tested on all concievable platforms yet. It might also be silly
+     on some platforms (WinCE or Palm devices, for instance). If universal
+     newline support is not enabled then file objects do not have the "newlines"
+     attribute, so testing whether the current Python has it can be done with a
+     simple
+     if hasattr(sys.stdout, 'newlines'):
+     	print 'We have universal newline support'