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From: Wolfgang Schuster via ntg-context <ntg-context@ntg.nl>
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Subject: Re: Test for displaying a header
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Cc: Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>
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Fabrice Couvreur via ntg-context schrieb am 26.08.2021 um 19:06:
> Hi,
>
> Using this (almost what I'm trying to do) without success
>
> [...]
>
> \startsetups[header]
> \doifelse{\totalnumberofpages}{1}
> {\setupheadertexts[\setups{header}]}
>     {}
> \stopsetups

This stores the page check in the setups environment  but you never call 
it. The call from within the environment itself can't work because the 
content is never evaluated and even if it would be called you create an 
endless loop.

Wolfgang


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<html theme="default-light" iconset="color"><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head><body text="#000000"><span>Fabrice Couvreur via ntg-context 
schrieb am 26.08.2021 um 19:06:</span><br>
<blockquote type="cite" 
cite="mid:CACyK-ernCWuLrZCK7hcRdpv_vdygYMhb7HxLGmS-hZN8LhBntA@mail.gmail.com">
  <meta http-equiv="content-type" content="text/html; charset=utf-8">
  <div dir="ltr"><div class="gmail_default" 
style="font-family:verdana,sans-serif"><span class="gmail-VIiyi" 
lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span>Hi,</span></span><span
 class="gmail-JLqJ4b"><span> <br></span></span></span></div><div 
class="gmail_default" style="font-family:verdana,sans-serif"><span 
class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b"><span></span></span><span
 class="gmail-JLqJ4b gmail-ChMk0b"><span><br>
</span></span></span></div><div class="gmail_default" 
style="font-family:verdana,sans-serif"><span class="gmail-VIiyi" 
lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span>Using this (<span
 class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span>almost
 what I'm trying to do) <span class="gmail-VIiyi" lang="en"><span 
class="gmail-JLqJ4b gmail-ChMk0b"><span>without success</span></span></span></span></span></span></span></span></span></div><div
 class="gmail_default" style="font-family:verdana,sans-serif"><span 
class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span><span
 class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span><span
 class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span><br></span></span></span></span></span></span></span></span></span></div>[...]<span
 class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span><span
 class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span><span
 class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span></span></span></span></span></span></span></span></span></span><br>
    <span class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b 
gmail-ChMk0b"><span><span class="gmail-VIiyi" lang="en"><span 
class="gmail-JLqJ4b gmail-ChMk0b"><span><span class="gmail-VIiyi" 
lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span></span></span></span></span></span></span></span></span></span><div
 class="gmail_default" style="font-family:verdana,sans-serif"><span 
class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span><span
 class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span><span
 class="gmail-VIiyi" lang="en"><span class="gmail-JLqJ4b gmail-ChMk0b"><span><br>\startsetups[header]<br> 
 \doifelse{\totalnumberofpages}{1}<br>    
{\setupheadertexts[\setups{header}]}<br>    {}<br>\stopsetups</span></span></span></span></span></span></span></span></span><br>
</div></div>
</blockquote>
<br>
This stores the page check in the setups environment  but you never call
 it. The call from within the environment itself can't work because the 
content is never evaluated and even if it would be called you create an 
endless loop.<br>
<br>
Wolfgang<br>
<br>
</body></html>

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