Perlocution revisited

Remember I wrote a few weeks ago about my readings on perlocution (Austin, Searle, etc)? Well, I was suggesting that maybe one function of discourse is to anounce the subject position of the author, to show that they are a good liberal or nice to disabled people, or whatever. Anyway, so today I discovered that Foucault already writes about what I was trying to articulate - in the idea of "enunciative modalities" that he explored in The Archaelogy of Knowledge. I must confess it was SO exciting to read that Foucault had expressed exactly the idea that i was toying with. anyway, Fairclough also writes about it, so I guess Fairclough might just end up being more useful than i had felt.