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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: How to grep for a string spanning multiple lines?
Date: Sat, 26 Nov 2022 10:59:17 +0200
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In-Reply-To: <Y4HRw4S5Q2cMsAIe@protected.localdomain> (message from Jean Louis
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> Date: Sat, 26 Nov 2022 11:43:47 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: help-gnu-emacs@gnu.org
> 
> Because "[[:space:]]+" does not include "\n" that I know:

Read its documentation carefully, and you will realize that whether it does
or doesn't include a newline depends on the syntax table of the current
buffer.