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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.help
Subject: Re: bounds-of-thing-at-point for paragraphs
Date: Sun, 01 Nov 2020 21:27:43 +0200
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In-Reply-To: <X58D8O+j85DVXth0@protected.rcdrun.com> (message from Jean Louis
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> Date: Sun, 1 Nov 2020 21:52:32 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: Christopher Dimech <dimech@gmx.com>,
>  Help Gnu Emacs <help-gnu-emacs@gnu.org>
> 
> Return the THING at point.
> THING should be a symbol specifying a type of syntactic entity.
> Possibilities include ‘symbol’, ‘list’, ‘sexp’, ‘defun’,
> ‘filename’, ‘url’, ‘email’, ‘uuid’, ‘word’, ‘sentence’, ‘whitespace’,
> ‘line’, ‘number’, and ‘page’.
> 
> 
> Could somebody update documentation for those functions?

The number of "things" it can support is unbounded.  How would you
suggest to update the doc string to describe an infinite number of
possible objects?