Shouldn't it be easier to find info on how to learn Emacs to recognize compiler output?

[Lennart Borgman]

I have for a while just plovr (a javascript compiler). The output from
plovr is infortunately not following the usual standard so Emacs does
not recognize it. Two questions:

- I can't remember how to change the way Emacs looks for errors. And
it is hard to find it. Should not that be a bit easier? For example
compilation-mode might have a link to it.

- What is the normal formatting of compilation errors called?