bug#1119: elisp-index-search on current symbol

[Lars Ingebrigtsen]

xah lee <xah@xahlee.org> writes:

> 2 suggestions related to documentation lookup.
>
> (1) have elisp-index-search's default prompt to be the symbol under
> cursor. This seems useful and consistent with other emacs lookup  
> commands.

Makes sense.  I've now added this to Emacs 27.

> (2) have describe-function display a link to the elisp manual.

I don't think that can be done in general or guessed at efficiently...

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