GNU bug report logs - #13032
24.3.50; Request: Provide a `delete-duplicate-lines' command

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Message #61 received at 13032 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> jurta.org>
To: 13032 <at> debbugs.gnu.org
Cc: dmoncayo <at> gmail.com
Subject: Re: bug#13032: 24.3.50;
	Request: Provide a `delete-duplicate-lines' command
Date: Tue, 04 Dec 2012 02:05:03 +0200

>>> The ADJACENT argument is an optimization that doesn't require
>>> additional memory (to store previous lines in the cache).
>>> This is necessary when the user needs to delete duplicate lines
>>> in a large sorted file.
>>
>> Ah, good point.  I guess that the optimization is twofold: in memory
>> and also in performance.  Then, IMO this should be explained in the
>> docstring, so that users know that they should use this feature when
>> running this command over a large chunk of lines.
>
> Thanks for the suggestion, I added this as well.

It just occurred to me that we could also add an alias `uniq' that will
call the command `delete-duplicate-lines' with non-nil ADJACENT arg.

We already have aliases like `mkdir' for `make-directory',
so the command `uniq' would be handy too.

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