Re: What's cooking in git.git (May 2012, #06; Wed, 23)

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Am 5/24/2012 7:36, schrieb René Scharfe:
> Am 24.05.2012 00:24, schrieb Junio C Hamano:
>> * rs/maint-grep-F (2012-05-21) 4 commits
>>    (merged to 'next' on 2012-05-23 at b24143c)
>>   + grep: stop leaking line strings with -f
>>   + grep: support newline separated pattern list
>>   + grep: factor out do_append_grep_pat()
>>   + grep: factor out create_grep_pat()
>>
>> "git grep -F", unlike the case where it reads from a file, did not treat
>> individual lines in the given pattern argument as separate patterns as it
>> should.
> 
> This is not specific to -F; grep(1) accepts newline-separated pattern
> lists with -E etc. as well, as does git grep with the patches above.

Shouldn't we worry that this change breaks existing users?

Consider a script that generates a pattern that sometimes contains NL.
Yes, it would not match anywhere, but what if that is a deliberate choice
of the script writer? With this change, the script would now observe
spurious matches where earlier there were no matches.

-- Hannes
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