Michael Albinus <michael.albinus@gmx.de> writes:

> Eli Zaretskii <eliz@gnu.org> writes:
>
>>> From: npostavs@users.sourceforge.net
>>> Cc: 16984@debbugs.gnu.org,  jidanni@jidanni.org
>>> Date: Fri, 28 Oct 2016 22:27:13 -0400
>>> 
>>> > What about the "/:" quoting?  It works for me, when I type "/:" before
>>> > the name of the file which has a '~' character embedded in it.
>>> 
>>> Ah, yes it works, as documented in `(emacs) Quoted File Names'.  I think
>>> it would be nicer if Emacs' file prompts defaulted to insert this as
>>> needed, here's a patch to do that:
>>
>> This is good for master, but please wait for a few days in case
>> someone would like to comment or object.
>
> Prefixing with "/:" would also deactivate all file name handlers. The
> file name "/ssh:user@host:/path/~/file" would be handled literally,
> which is wrong.

Ah, good point.  How about checking (find-file-name-handler filename
'substitute-in-file-name):