Re: The very last macro

[Hans Hagen <pragma@wxs.nl>]

luigi scarso wrote:
>> why, what do you want to achieve; there are already such hooks
> The original request was
> sorry for the noise :
> is there in mkiv a very last macro ?
> I mean something like
> \IamCallAtTheReallyEnd{..}
> which does absolutly nothing to the pdf , and  after  which mkiv ends
> without calls any other macro
> 
> Peter suggest to use \everylastshipout;
> but this
> 
> \def\LuigisWhateverShouldHappen{\immediate\write16{BOOOM!}Something
> Luigi want to do for some unknown reason.\immediate\write16{BOOOM!}}
> 
> \appendtoks\LuigisWhateverShouldHappen \to \everylastshipout
> \starttext
> hello
> \stoptext
> 
> write
> Something Luigi want to do for some unknown reason.
> 
> near the bottom of pdf (and I don't want it)
> and BOOM! on log (which is a way to say that this macro was called)

the problem is in your definition of 'end' and 'bottom'

the real final thing is \end and \everygoodbye happens just before that 
(the only calls after it are postponed error messages, which have no 
consequence for any pdf and the primitive \end which is really needed)

of course there can be pending conditional branches that needs to be 
finished; just try \appendtoks\tracingall\to\everygoodbye

You can also do something

\startluacode
     table.insert(input.stop_actions, function()
         texio.write_nl("I still have no clue why you need it.")
     end)
\stopluacode

any other hook in itself will introduce a new situation of 'something 
done before the real \end'

Hans

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