Hardcode the recognized whitespace characters to the US-ASCII whitespace

chars.  See the comment for rationale.
This commit is contained in:
Greg Ward 2002-12-12 17:24:35 +00:00
parent b5bfb9f38c
commit afd44de812
1 changed files with 12 additions and 3 deletions

View File

@ -12,6 +12,16 @@ __revision__ = "$Id$"
import string, re
# Hardcode the recognized whitespace characters to the US-ASCII
# whitespace characters. The main reason for doing this is that in
# ISO-8859-1, 0xa0 is non-breaking whitespace, so in certain locales
# that character winds up in string.whitespace. Respecting
# string.whitespace in those cases would 1) make textwrap treat 0xa0 the
# same as any other whitespace char, which is clearly wrong (it's a
# *non-breaking* space), 2) possibly cause problems with Unicode,
# since 0xa0 is not in range(128).
whitespace = '\t\n\x0b\x0c\r '
class TextWrapper:
"""
Object for wrapping/filling text. The public interface consists of
@ -48,12 +58,11 @@ class TextWrapper:
be broken, and some lines might be longer than 'width'.
"""
whitespace_trans = string.maketrans(string.whitespace,
' ' * len(string.whitespace))
whitespace_trans = string.maketrans(whitespace, ' ' * len(whitespace))
unicode_whitespace_trans = {}
uspace = ord(u' ')
for x in map(ord, string.whitespace):
for x in map(ord, whitespace):
unicode_whitespace_trans[x] = uspace
# This funky little regex is just the trick for splitting