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Update textwrap.py to CPython 3.8

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Padraic Fanning committed 2021-05-23 16:15:49 -04:00
1 parent 0c93833f66
commit 1442177ee5
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+25 -28
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Lib/textwrap.py
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+25 -28
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@@ -76,43 +76,40 @@ class TextWrapper:
# (after stripping out empty strings).
word_punct = r'[\w!"\'&.,?]'
letter = r'[^\d\W]'
whitespace = r'[%s]' % repr(_whitespace)[1:-1]
# FIXME: Be able to use line below
# whitespace = r'[%s]' % re.escape(_whitespace)
whitespace = r'[%s]' % re.escape(_whitespace)
nowhitespace = '[^' + whitespace[1:]
# FIXME: Be able to use this:
# wordsep_re = re.compile(r'''
# ( # any whitespace
# %(ws)s+
# | # em-dash between words
# (?<=%(wp)s) -{2,} (?=\w)
# | # word, possibly hyphenated
# %(nws)s+? (?:
# # hyphenated word
# -(?: (?<=%(lt)s{2}-) | (?<=%(lt)s-%(lt)s-))
# (?= %(lt)s -? %(lt)s)
# | # end of word
# (?=%(ws)s|\Z)
# | # em-dash
# (?<=%(wp)s) (?=-{2,}\w)
# )
# )''' % {'wp': word_punct, 'lt': letter,
# 'ws': whitespace, 'nws': nowhitespace},
# re.VERBOSE)
wordsep_re = re.compile(r'''
( # any whitespace
%(ws)s+
| # em-dash between words
(?<=%(wp)s) -{2,} (?=\w)
| # word, possibly hyphenated
%(nws)s+? (?:
# hyphenated word
-(?: (?<=%(lt)s{2}-) | (?<=%(lt)s-%(lt)s-))
(?= %(lt)s -? %(lt)s)
| # end of word
(?=%(ws)s|\Z)
| # em-dash
(?<=%(wp)s) (?=-{2,}\w)
)
)''' % {'wp': word_punct, 'lt': letter,
'ws': whitespace, 'nws': nowhitespace},
re.VERBOSE)
del word_punct, letter, nowhitespace
# This less funky little regex just split on recognized spaces. E.g.
# "Hello there -- you goof-ball, use the -b option!"
# splits into
# Hello/ /there/ /--/ /you/ /goof-ball,/ /use/ /the/ /-b/ /option!/
wordsep_simple_re = wordsep_re = re.compile(r'(%s+)' % whitespace)
wordsep_simple_re = re.compile(r'(%s+)' % whitespace)
del whitespace
# XXX this is not locale- or charset-aware -- string.lowercase
# is US-ASCII only (and therefore English-only)
sentence_end_re = re.compile(r'[a-z]' # lowercase letter
r'[\.!\?]' # sentence-ending punct.
r'["\']?' # optional end-of-quote
r'[\.\!\?]' # sentence-ending punct.
r'[\"\']?' # optional end-of-quote
r'\Z') # end of chunk
def __init__(self,
@@ -423,9 +420,9 @@ def dedent(text):
Note that tabs and spaces are both treated as whitespace, but they
are not equal: the lines " hello" and "\\thello" are
considered to have no common leading whitespace. (This behaviour is
new in Python 2.5; older versions of this module incorrectly
expanded tabs before searching for common leading whitespace.)
considered to have no common leading whitespace.
Entirely blank lines are normalized to a newline character.
"""
# Look for the longest leading string of spaces and tabs common to
# all lines.