Misrepresenting Halliday's Approach To 'Calls' As The Authors' Insight

Martin & Rose (2007: 235): 

As a rule of thumb we can include expletives and vocatives in other moves where possible, and treat them as independent moves only when there is nothing to append them to. So Sannie would be a vocative in the following command by her father:

Hendrik: Sannie, go with Father Dalton.

Sannie: - (goes)

But in the movie version of this exchange, Coetzee has been attacked and injured by Ernest, and in the ensuing chaos Hendrik has to first get Sannie’s attention before negotiating his demand for service:

Hendrik: Sannie.

Sannie: - What?

Hendrik: Go with Father Dalton.

Sannie: - (goes)

Blogger Comments:

This is misleading. Yet again, Martin & Rose misrepresent Halliday's theorising as their own. Halliday (1994: 95):