Re: 1) (elisp) `Advising Named Functions', 2) search filtering example

[Stefan Monnier]

> Applying macro `add-function' to `isearch-filter-predicate'
> advises the value - the function itself.

No.

> It does not just
> point the variable to a different value (function).

Yes it does.

> `(symbol-function isearch-filter-predicate)' returns an advice
> (an object that satisfies "internal" predicate `advice--p').

No, it returns nil because this symbol is not defined as a function.


        Stefan