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Re: Should mode commands be idempotent?

From: Richard Stallman
Subject: Re: Should mode commands be idempotent?
Date: Fri, 22 Sep 2017 20:39:59 -0400

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  > And any 3rd-party library (if there were any) that might have
  > such a mode function would be well advised to make clear to its
  > users that the function is not idempotent, and explain why:
  > what to expect and why.

I think that approach isn't strong enough to give users predictable
behavior.  We should say that all major modes and minor modes are
idempotent; then, if any fails to be, it will clearly be a bug.

Dr Richard Stallman
President, Free Software Foundation (gnu.org, fsf.org)
Internet Hall-of-Famer (internethalloffame.org)
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