my problem with the emdash

[nibot]

I think the mdash — which I am ilustrating right here — should be offset with spaces.

Convention is that the emdash—which is just a hyphenated parenthetical interjection—is not.

Comments

[forvrkate.livejournal.com]

"use "--" which is even more wrong ..."

I had a college writing professor who insisted upon "--"

I wonder what MLA suggests.