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(elisp)Enabling Advice

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Enabling and Disabling Advice
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   Each piece of advice has a flag that says whether it is enabled or
not.  By enabling or disabling a piece of advice, you can turn it on
and off without having to undefine and redefine it.  For example, here
is how to disable a particular piece of advice named `my-advice' for
the function `foo':

     (ad-disable-advice 'foo 'before 'my-advice)

   This function by itself only changes the enable flag for a piece of
advice.  To make the change take effect in the advised definition, you
must activate the advice for `foo' again:

     (ad-activate 'foo)

 - Command: ad-disable-advice function class name
     This command disables the piece of advice named NAME in class
     CLASS on FUNCTION.

 - Command: ad-enable-advice function class name
     This command enables the piece of advice named NAME in class CLASS
     on FUNCTION.

   You can also disable many pieces of advice at once, for various
functions, using a regular expression.  As always, the changes take real
effect only when you next reactivate advice for the functions in
question.

 - Command: ad-disable-regexp regexp
     This command disables all pieces of advice whose names match
     REGEXP, in all classes, on all functions.

 - Command: ad-enable-regexp regexp
     This command enables all pieces of advice whose names match
     REGEXP, in all classes, on all functions.