Way to detect "raw" display of article?

[Damien Collard]

Hello,

I have written a module for Gnus that replaces the standard `>` citation
marks in article-mode with nicer Unicode ones using the same face as the
corresponding cited text.

However, I only want to apply this transformation in the "regular" (C-g)
view of the article, not if it's being viewed "raw" (`C-u g` or `C-u C-u
g`). Is their a reliable way to detect this?

Damien