IDE that uses an external editor?

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    Slawomir> #> One thing that's kept me from even looking at IDEs is that
    Slawomir> #> to the best of my knowledge none of them will integrate
    Slawomir> #> properly with external editors like Emacs or vi.

    Slawomir> To the best of *my* knowledge, Emacs integrates pretty well
    Slawomir> with Emacs, and I suppose vi integrates pretty well with
    Slawomir> vi... Or do you mean something else by "IDE"?

By IDE I mean "Integrated Development Environment".  I realize I can do a
lot within Emacs/XEmacs, but I suspect with a tool like Eclipse I could do
more.  However, I don't want to give up the text editing power of Emacs to
get it.

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