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From: Guy Worthington <guyw@multiline.com.au>
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Subject: Re: header/footer suppression
Date: 29 Mar 2003 16:47:31 +0800
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Patrick Gundlach wrote:
> Guy Worthington wrote

>> How can I get both a blank page inserted whenever a chapter
>> finishes on an odd page, and also suppress my header on the first
>> page of a chapter.

> before={\ifodd\realpageno\else\page[empty]\noheaderandfooterlines\fi},

Thanks Patrick, the next specification is that I have a footer.

-----
% output=pdftex
\definetext[chapter][footer][pagenumber] % page on which chapters begin
\setuphead
  [chapter]
  [page=right,
   header=empty,
   footer=chapter,
%   before={\page\ifodd\realpageno\else\page[empty]\fi\page[right]},
]
\setupheadertexts
  [chapter]
\setuppagenumbering[alternative=doublesided]

\starttext
\chapter {test} \dorecurse{10}{\input tufte }
\chapter {test} \dorecurse{10}{\input tufte }
\chapter {test} \dorecurse{10}{\input tufte }
\stoptext

-----

>> \setuppagenumbering[alternative=doublesided,
>>                     option=doublesided]

> what is this option=...?

is used to produce an even number of pages, so if you count ever page
in the book then the number of recto and verso pages are exactly
equal.