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Subject: |
Example in manual no longer works |
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Date: |
Tue, 03 Nov 2020 13:28:41 +0800 |
(info "(emacs) Grep Searching") Says
For instance, you can chain ‘grep’ commands, like this: ...
But the example it then gives is for older emacs versions.
Newer emacs versions' grep string contains "--null" (proof: try
$ emacs -f grep
) which will cause the example to fail.
How can one rewrite the example to work with newer emacs versions?
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Subject: |
Re: bug#44409: Example in manual no longer works |
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Date: |
Wed, 04 Nov 2020 05:24:40 +0200 |
> From: 積丹尼 Dan Jacobson <jidanni@jidanni.org>
> Cc: bug-gnu-emacs@gnu.org, 44409@debbugs.gnu.org
> Date: Wed, 04 Nov 2020 07:32:42 +0800
>
> >>>>> "EZ" == Eli Zaretskii <eliz@gnu.org> writes:
>
> EZ> The example in the manual doesn't mention /etc/motd of any other binary
> file. It uses text files, where this issue doesn't exist.
>
> Since when is /etc/motd a binary file?
I didn't say it was.
> >> $ grep --color -nH --null -e a /etc/motd | grep x
> >> Binary file (standard input) matches
>
> So we see the issue indeed exists with text files!!
No, it exists if you use Grep incorrectly.
> EZ> Yes, but you need to edit that prompt anyway in order to type the
> EZ> command with a pipe, so the original prompt doesn't matter much.
>
> No!
>
> In the past one could simply slap the pipe(s) on to the back.
>
> Now that no longer works.
>
> Therefore the example needs to be rewritten to make it work again.
The example already works without any changes, so it doesn't need to
be rewritten.
> (Or specific instructions need to be given: "Be sure to remove any
> '--null' that emacs has stuck in, for this example to work.")
That's the stuff for Grep manual, not for Emacs.
So I don't see any problem here to fix, and I'm closing this bug
report.
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