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Re: turning on minor modes from hooks

From: Richard Stallman
Subject: Re: turning on minor modes from hooks
Date: Sun, 30 Aug 2009 23:33:19 -0400

    Stephen has long advocated that non-interactive invocation of mode
    commands should always turn on the mode instead of toggling.

A call with no arguments, as in (auto-save-mode), naturally ought to
toggle the mode or turn it on.  But (auto-save-mode nil) has the
natural meaning of turning the mode off.

Perhaps we could make minor mode functions take &rest arguments so
they can distinguish those two cases.  However, that could be a
painful change,

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