Re: [Dev-luatex] Recalculating tail of the list in ligaturing callback

16 Nov 2018


      On 11/16/2018 1:54 PM, Marcel Krüger wrote:
...
---- On Wed, 14 Nov 2018 15:26:43 +0100 Hans Hagen  wrote ----
...
On 11/14/2018 2:42 PM, Marcel Krüger wrote:
...
Now `run_lua_ligkern_callback` always returns the tail parameter without change,
so I am pretty sure `tail` is never `null`.
not true ... the callback can be any function and there doesn't have to
be a tail returned .... if you want to recalculate, just make sure you
return only head
Are you sure? The actual callback which `run_lua_ligkern_callback` calls does not return
anything (or at least it's return values are ignored), so how would you influence the `run_lua_ligkern_callback` return value?
i'll put it on the to-be-checked list
Hans

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