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From: Hans Hagen <pragma@wxs.nl>
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Subject: RE: Setting paragraph title right or left in doublesided mode
Date: Sat, 03 Jun 2000 00:42:11 +0200
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At 05:11 PM 6/2/2000 +0200, Berend de Boer wrote:
>> I tried to use \ifodd\paginanumber, but this wasn't very
>> reliable (perhaps
>> in combination with other stuff). How can I make 100% sure
>> I'm on an odd or
>> even page?
>
>Hmm, it seems \definetwopasslist does the job!! (and a few more lines of
>course, but this was what I needed)

\ifodd\realpageno
   this is 
\else
   rather safe
\fi

but indeed a twopass list is more robust; actually, you could use:

\setraggedparagraphmode
  {odd action}
  {even action} 

which generates the twopass entry too. Maybe I should have: 

\let\doifrightpageelse\setraggedparagraphmode

alternatively (atthe cost of more macros, since two pass lists are
implemented rather efficiently) you can use: 

\pagereference[here]\doifreferencefoundelse{here}
  {\ifodd\currentrealreference\relax a\else b\fi}
  {}

Hans

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