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Re: bug#23425: master branch: `message' wrongly corrupts ' to curly quot

From: Alan Mackenzie
Subject: Re: bug#23425: master branch: `message' wrongly corrupts ' to curly quote.
Date: Sat, 3 Jun 2017 21:07:47 +0000
User-agent: Mutt/1.5.24 (2015-08-30)

Hello, Glenn.

On Thu, Jun 01, 2017 at 12:56:05 -0400, Glenn Morris wrote:

> So in your view what needs to happen for this bug to be closed?
> As was explained a year ago, change your initial example to (message
> "%s" ...) and your issue goes away.

No it does not.  The issue is that this is a trap waiting to spring and
bite hackers.  Also the workaround you identify is ugly and irregular -
it would involve writing two format strings (one of them being the "%s")
to do one `message' invocation.

I have identified a regular and rational way to repair the damage,
namely to introduce the new %-constructs %` and %', which would invoke
quote translation, and would remain compatible with `message' as it was
before Emacs-25.

Alan Mackenzie (Nuremberg, Germany).

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