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Subject: Re: visible-whitespace-mode
Date: Fri, 10 Jun 2022 11:18:08 +0200
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goncholden <goncholden@protonmail.com> writes:

> Invalid read syntax: ?

|  (?\t [?» ?\t] [?\\ ?\t])
|  (?   [?·] [?.])
         ^^^

?» and ?· are syntactically invalid (two non-whitespace characters
follow the "?").  Which characters do you want to specify?

Michael.