10 Feb
2011
10 Feb
'11
12:53 p.m.
* in pdftex, \letterspacefont does not disable the ligatures, but this is what happens in luatex.
IMO that's a desireable behaviour, not a bug. See Bringhurst, Oliver Simon's _Introduction to Typography_ &c.
A control to turn it off or on (defaulting to disabling the ligatures) would be okay, but I've had to put a lot of effort into turning off ligatures when letterspacing and it's a pain.
In older german texts ligatures are not letter spaced. For example: B i s m a r ck (the ck ligature is not seperated) Patrick