RE: move to fail position in Isearch edit

[Drew Adams]

> > Any interest in this? I bind it to `M-e' in 
> > `minibuffer-local-isearch-map', so
> > `M-e M-e' puts the cursor at the match failure position.
> >
> > If you type a search string quickly and mistype a char or 
> > two, this lets you correct the typo without discarding
> > and retyping the rest of the search string:
> > `M-e M-e <corrections> C-s'.
> 
> Isn't it more convenient to type a new key to immediately remove the
> failed part without entering the minibuffer for editing?  For example,
> after typing `M-e' (selecting a good key is a difficult issue) it will
> remove the failed part of the search string, go to the 
> previous successful matching point, and all this without activating
> the minibuffer.

Maybe we're miscommunicating. If you just want to remove the failed suffix,
simply use `C-g'. No need for any new feature to do that.

This is not about that. This is about keeping the failed suffix but letting you
do something at the place where failure starts: delete chars, insert chars. IOW,
it's about editing the search string, starting at the position where match
failure begins.