From mboxrd@z Thu Jan  1 00:00:00 1970
X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/7427
Path: main.gmane.org!not-for-mail
From: =?ISO-8859-1?Q?Gilles_P=E9rez-Lambert?= <Gilles.Perez@univ-montp3.fr>
Newsgroups: gmane.comp.tex.context
Subject: Problem with understanding \doifemptyelse
Date: Fri, 22 Mar 2002 12:26:49 +0100
Sender: owner-ntg-context@let.uu.nl
Message-ID: <B3A95C8C-3D87-11D6-A5F5-000A27B468AA@univ-montp3.fr>
NNTP-Posting-Host: coloc-standby.netfonds.no
Mime-Version: 1.0 (Apple Message framework v481)
Content-Type: text/plain; charset=US-ASCII; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: main.gmane.org 1035397891 19157 80.91.224.250 (23 Oct 2002 18:31:31 GMT)
X-Complaints-To: usenet@main.gmane.org
NNTP-Posting-Date: Wed, 23 Oct 2002 18:31:31 +0000 (UTC)
Original-To: ntg-context@ntg.nl
Xref: main.gmane.org gmane.comp.tex.context:7427
X-Report-Spam: http://spam.gmane.org/gmane.comp.tex.context:7427

Hello,

I'm trying to setup headers in such a manner that on the left pages I 
have the chapter title and on the right the section one; but if there's 
no section, I want the chapter one...

I tried:
%%%%%%%%
\setupheadertexts
[][{%
\inframed[align=middle,frame=off,bottomframe=on,width=\makeupwidth]%
{\itx\hfill%
\doifemptyelse{\getmarking[section]}%%% If section header is empty
{\getmarking[chapter]}% Take the chapter one
{\getmarking[section]}}% else we take the section header
}]
[{\inframed[align=middle,frame=off,bottomframe=on,width=\makeupwidth]{\itx\
getmarking[chapter]\hfill\null}}][]
%%%%%%%%

I know I must miss something: \getmarking[section] is surely not that 
empty when there's nothing but my TeX knowledge is not that deep.

Another little problem: how not to have the headers on the beginning 
page of a chapter; i tried many things but didn't find the right one.

Thanks,

Gilles.