bug#8101: 24.0.50; `isearch-search-fun-function'

[Lars Magne Ingebrigtsen]

"Drew Adams" <drew.adams@oracle.com> writes:

> Make it clear that this var's value is a function that is called with NO
> ARGS and whose return value should be a function of the SAME THREE ARGS
> as `isearch-search-string'.  That returned function will be used by
> `isearch-search-string' to "search for the first occurrence of STRING or
> its translation."

I've clarified the doc string to the best of my ability now:

(defvar isearch-search-fun-function nil
  "Overrides the default `isearch-search-fun' behaviour.
This variable should be a function, which will be called with no
arguments, and should return a function that takes the same three
arguments as `isearch-search-string' requires.")

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