[Dev-luatex] letterspacing and (no) ligatures

Patrick Gundlach patrick at gundla.ch
Thu Feb 10 13:53:25 CET 2011

>> * 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)


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