bug#61098: 29.0.60; Confusing behavior of show-paren-mode

[Dmitry Gutov]

On 31/01/2023 16:13, Eli Zaretskii wrote:
> > From: Rah Guzar<rahguzar@zohomail.eu>
> > Cc: Stefan Monnier<monnier@iro.umontreal.ca>,61098@debbugs.gnu.org
> > Date: Tue, 31 Jan 2023 14:03:20 +0100
> >
> >
> > Eli Zaretskii<eliz@gnu.org>  writes:
> >
> > > It should be an expression that yields a boolean value (that's why the
> > > variable is named "predicate").  I will improve the doc string when I
> > > install the final version of the changes.
> > What I had been missing was how is that expression supposed to yield
> > a boolean value.
> The function 'not' returns a boolean value.

'not' is just a symbol in this case -- from a DSL.

(buffer-match-p show-paren-predicate (current-buffer)) is supposed to 
return non-nil.

See its docstring for the description of the DSL format.