I don't know whether I'm reporting a real typo (it might be a stylistic question).
I haven't read the full TEI Guidelines and the TEI Lite documentation, but there seems to be a parenthetical use of dashes with additional spaces. The question is that for this parenthetical use both em and en dashes are deployed.
Shouldn't it be only one dash for this use (whichever it might be)?
Thanks for your help,