Which languages are you talking about? It looks unfamiliar to me.

schoen 7 hours ago | parent | next [-]

I believe I've also seen it in Spanish and Portuguese.

	▲	rafabulsing 6 hours ago \| parent [-]
		Brazilian here. That is indeed the standard way dialogue is represented in literature. We call the em-dash a "travessão".

pbalau 7 hours ago | parent | prev [-]

I think Romanian uses that too and it just occurred to me that "linie de dialog" is not dash, but em dash.