# [Dev-luatex] letterspacing and (no) ligatures

Thu Feb 10 14:49:26 CET 2011

```On Feb 10, 2011, at 8:45 AM, Patrick Gundlach wrote:

>> Couldn't one create that distinction by how one sets the text?
>>
>> Directly input the unicode character for the diphthongs, while allowing the ligatures to be constructed by OpenType rules --- that way the diphthongs would be left alone in situations like this, while ligatures would never be made when not appropriate.
>
> But then it would be a matter of the backend, not LuaTeX (except for \letterspacefont), right?

Yep.

>> I thought this was the whole point behind the Unicode Consortium choosing not to allocate code points for ligatures.
>
> what about U+FB03 for example? (LATIN SMALL LIGATURE FFI)
>
>
> Perhaps I misunderstood you.

No. I should've been more specific ``...the whole point behind the Unicode consortium choosing not to allocate any additional code points for ligatures beyond those which were provided for legacy's sake.''

William

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