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From: Hans Hagen <pragma@wxs.nl>
To: ntg-context@ntg.nl
Subject: Re: everybeforeoutput vs everyafteroutput
Date: Fri, 10 Mar 2017 17:36:10 +0100	[thread overview]
Message-ID: <3a1e7bc1-5e56-0abe-c3fd-a37faec031be@wxs.nl> (raw)
In-Reply-To: <ECF47E09-2E47-48C6-B712-989EAEA42841@arch.ethz.ch>

On 3/10/2017 10:07 AM, Michael Eidenbenz wrote:
> hello,
>
> i try to understand the difference of everybeforeoutput and everafteroutput to inject some pages. it seems as there is no difference.
> \the\everybeforeoutput is placed after the output of the page:
>
> \newtoks\Before
> \appendtoks
> \the\Before
> \global\Before\emptytoks
> \to\everybeforeoutput
>
> \newtoks\After
> \appendtoks
> \the\After
> \global\After\emptytoks
> \to\everyafteroutput
>
> \starttext
> \input{knuth}\par
> \appendtoks{before}\to\Before
> \appendtoks{after}\to\After
> \stoptext
>
>
> this code in page-otr.mkvi seems to put it before the content:
>
> \def\page_otf_set_engine_output_routine#content%
>   {\global\output
>      {\inotrtrue
>       \the\everybeforeoutput
>       #content\relax
>       \the\everyafteroutput}}
>
> can this be fixed?

there is nothing wrong .. you feed something in the output routine there

you can try to use one of the other \before\after ones but be aware of 
possible interferences with tex's state, hold content etc ... 
\startpostponing ... might do what you want

Hans

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  reply	other threads:[~2017-03-10 16:36 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-10  9:07 Michael Eidenbenz
2017-03-10 16:36 ` Hans Hagen [this message]
2017-03-11 21:55   ` Michael Eidenbenz

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