light-weight cross-platform customizable IDE

what is the most light-weight IDE that provides only the bare-bones services such as a project concept, a gui and document management facilities that can be fully customized!? I know Visual Studio has some such edition but I can't remember how it's called but if you know what I mea开发者_如何学JAVAn what I am looking for is THAT (VS bare-bones) + cross-platform support.

Do you mean the Express editions of visual studio? They are not cross platform, but Windows only (though they work well with Wine).

I don't believe there is any edition of Visual Studio that is cross platform by design.

For a cross platform IDE you can try MonoDevelop or Eclipse.