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bpo-28660: Make TextWrapper break long words on hyphens (GH-22721)

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Irit Katriel 2020-10-18 18:01:15 +01:00 • committed by GitHub
parent 67f04878de
commit b81c833ab5
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3 changed files with 83 additions and 2 deletions
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12
Lib/textwrap.py
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@ -215,8 +215,16 @@ class TextWrapper:
# If we're allowed to break long words, then do so: put as much
# of the next chunk onto the current line as will fit.
if self.break_long_words:
cur_line.append(reversed_chunks[-1][:space_left])
reversed_chunks[-1] = reversed_chunks[-1][space_left:]
end = space_left
chunk = reversed_chunks[-1]
if self.break_on_hyphens and len(chunk) > space_left:
# break after last hyphen, but only if there are
# non-hyphens before it
hyphen = chunk.rfind('-', 0, space_left)
if hyphen > 0 and any(c != '-' for c in chunk[:hyphen]):
end = hyphen + 1
cur_line.append(chunk[:end])
reversed_chunks[-1] = chunk[end:]
# Otherwise, we have to preserve the long word intact. Only add
# it to the current line if there's nothing already there --