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Issue #22687: Fixed some corner cases in breaking words in tetxtwrap.

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Got rid of quadratic complexity in breaking long words.
This commit is contained in:
Serhiy Storchaka 2015-03-24 18:32:27 +02:00
parent b365a06a84
commit 72bd327db0
3 changed files with 38 additions and 4 deletions
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16
Lib/test/test_textwrap.py
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@ -184,6 +184,16 @@ What a mess!
self.check_wrap(text, 42,
["this-is-a-useful-feature-for-reformatting-",
"posts-from-tim-peters'ly"])
# The test tests current behavior but is not testing parts of the API.
expect = ("this-|is-|a-|useful-|feature-|for-|"
"reformatting-|posts-|from-|tim-|peters'ly").split('|')
self.check_wrap(text, 1, expect, break_long_words=False)
self.check_split(text, expect)
self.check_split('e-mail', ['e-mail'])
self.check_split('Jelly-O', ['Jelly-O'])
# The test tests current behavior but is not testing parts of the API.
self.check_split('half-a-crown', 'half-|a-|crown'.split('|'))
def test_hyphenated_numbers(self):
# Test that hyphenated numbers (eg. dates) are not broken like words.
@ -195,6 +205,7 @@ What a mess!
'released on 1994-02-15.'])
self.check_wrap(text, 40, ['Python 1.0.0 was released on 1994-01-26.',
'Python 1.0.1 was released on 1994-02-15.'])
self.check_wrap(text, 1, text.split(), break_long_words=False)
text = "I do all my shopping at 7-11."
self.check_wrap(text, 25, ["I do all my shopping at",
@ -202,6 +213,7 @@ What a mess!
self.check_wrap(text, 27, ["I do all my shopping at",
"7-11."])
self.check_wrap(text, 29, ["I do all my shopping at 7-11."])
self.check_wrap(text, 1, text.split(), break_long_words=False)
def test_em_dash(self):
# Test text with em-dashes
@ -326,6 +338,10 @@ What a mess!
self.check_split("the ['wibble-wobble'] widget",
['the', ' ', "['wibble-", "wobble']", ' ', 'widget'])
# The test tests current behavior but is not testing parts of the API.
self.check_split("what-d'you-call-it.",
"what-d'you-|call-|it.".split('|'))
def test_funky_parens (self):
# Second part of SF bug #596434: long option strings inside
# parentheses.