Left/Right alternating headers in Jade

Subject: Left/Right alternating headers in Jade
From: Norman Walsh <norm@xxxxxxxxxxxxx>
Date: Tue, 11 Nov 1997 10:17:39 -0500
Hello world,

The DocBook print stylesheet seems to go to some length to
support alternating left/right headers and footers.  The idea is
clearly that if two-sided output is desired, then one of the
headers should always be "outer" and the other should always be

But this is pointless, isn't it?  The *-header: and *-footer: 
characteristics take as values unlabelled sosofos.  So in the

  left-header: (some-complex-left-right-page-function)

"some-complex-left-right-page-function" gets evaluated exactly
once for each simple-page-sequence that uses it and the sosofo
returned is used as the left header (regardless of whether it's
inner or outer) on every subsequent page, right?


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