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From: Tomas Hlavaty <tom@logand.com>
To: help-gnu-emacs@gnu.org
Subject: grep counting matches only with --color argument
Date: Sun, 28 Feb 2021 00:07:30 +0100	[thread overview]
Message-ID: <87lfb9t8i5.fsf@logand.com> (raw)

Hi,

why does this command shows the number of matches in the mode-line

   (grep "grep -r --color -nH -e TODO ~/git/emacs-pdf")

but this one (without --color argument) always shows 0?

   (grep "grep -r -nH -e TODO ~/git/emacs-pdf")

Is there a deeper reason that --color is required to see the number of
matches?  Could it simply count the number of matched lines if no
--color was specified?  Or is it not easy to detect?

I would like to see the number of matches with alternative programs like
ripgrep:

   (grep "rg -nH --no-heading --color=always -e TODO ~/git/emacs-pdf")
   (grep "rg -nH --no-heading --color=ansi -e TODO ~/git/emacs-pdf")

But the --color argument here does not seem to have an effect.

Thanks in advance,

Tomas



             reply	other threads:[~2021-02-27 23:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-27 23:07 Tomas Hlavaty [this message]
2021-03-02 19:33 ` grep counting matches only with --color argument Juri Linkov
2021-03-02 21:33   ` Tomas Hlavaty

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