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Fix for issue1488943 - difflib.Differ() doesn't always add hints for tab

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This commit is contained in:
Senthil Kumaran 2009-11-23 18:41:31 +00:00
parent f058d2dc08
commit 5c456e6f45
3 changed files with 15 additions and 4 deletions
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9
Lib/difflib.py
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@ -1061,20 +1061,21 @@ class Differ:
Example:
>>> d = Differ()
>>> results = d._qformat('\tabcDefghiJkl\n', '\t\tabcdefGhijkl\n',
... ' ^ ^ ^ ', '+ ^ ^ ^ ')
>>> results = d._qformat('\tabcDefghiJkl\n', '\tabcdefGhijkl\n',
... ' ^ ^ ^ ', ' ^ ^ ^ ')
>>> for line in results: print repr(line)
...
'- \tabcDefghiJkl\n'
'? \t ^ ^ ^\n'
'+ \t\tabcdefGhijkl\n'
'? \t ^ ^ ^\n'
'+ \tabcdefGhijkl\n'
'? \t ^ ^ ^\n'
"""
# Can hurt, but will probably help most of the time.
common = min(_count_leading(aline, "\t"),
_count_leading(bline, "\t"))
common = min(common, _count_leading(atags[:common], " "))
common = min(common, _count_leading(btags[:common], " "))
atags = atags[common:].rstrip()
btags = btags[common:].rstrip()