Hi Dave,

If you are seeing incorrect margins, then the problem is not in the templates you have customized, but in the selection of the page masters as pages are generated. There is one more thing you need to do for eliminating the extra blank pages in page sequences. You need to customize the fo:page-sequence-master to remove the page-position="first" item, since the "first" page master's layout matches the "odd" page master layout, but that is not appropriate when the first page is even. Here is the original fo:page-sequence-master for "lot" in the template named "setup.pagemasters" in fo/pagesetup.xsl:


   <fo:page-sequence-master master-name="lot">
     <fo:repeatable-page-master-alternatives>
       <fo:conditional-page-master-reference master-reference="blank"
                                             blank-or-not-blank="blank"/>
       <fo:conditional-page-master-reference master-reference="lot-first"
                                             page-position="first"/>
       <fo:conditional-page-master-reference master-reference="lot-odd"
                                             odd-or-even="odd"/>
       <fo:conditional-page-master-reference
                                             odd-or-even="even">
         <xsl:attribute name="master-reference">
           <xsl:choose>
             <xsl:when test="$double.sided != 0">lot-even</xsl:when>
             <xsl:otherwise>lot-odd</xsl:otherwise>
           </xsl:choose>
         </xsl:attribute>
       </fo:conditional-page-master-reference>
     </fo:repeatable-page-master-alternatives>
   </fo:page-sequence-master>

To customize this, your customization layer needs to have a template named "user.pagemasters" that contains a definition of a new fo:page-sequence-master that is the same as this one except it must have a new master-name and it must remove this element:

       <fo:conditional-page-master-reference master-reference="lot-first"
                                             page-position="first"/>

You can also remove the element for "blank", but it is not necessary because the no-force option prevents it from being used. With those gone, each page master is selected only by "odd" or "even", so when the first page is even it should get the even page master with those margins.

Then your customization layers needs to add a template named "select.user.pagemaster" to choose your new master-name for "lot". See this reference for more details on custom page masters:

http://www.sagehill.net/docbookxsl/PageDesign.html


Bob Stayton
Sagehill Enterprises
[email protected]


----- Original Message ----- From: redlettucemail
To: [email protected]
Sent: Sunday, April 10, 2011 1:42 AM
Subject: [docbook-apps] Incorrect page sequence for TOC/Lot and preface pages withdouble-sided output


I have used the workaround code below to delete blank pages, and renumber, so that there are no blank pages between the Table of contents and each of the lists of figures, tables and examples. The LOTs (and TOC) all appear on their separate pages, but when I set the document to double-sided output (which has different inner and outer margins) the LOT pages and the following Preface all appear with margins set up for recto (with a larger inner margin), and the page number in the footer is in the same position for all pages (it should alternate between left and right for subsequent pages). The output should alternate between recto and verso margins.

The first code below is the workaround to delete blank pages. The second is to specify page numbering on the LOT pages. I think I have narrowed down the problem to the first batch of code in the first example (by iteratively deleting each part of the code – 1 and 2 – and transforming), but I can’t see how the workaround affects the page sequence for LOTs. Thanks very much.
=========================================


<!--Delete blank pages in LOTs and front matter (both 1 and 2 below are required
 code)-->
 <!--1. don't force pages to end on even-->
 <xsl:template name="force.page.count">
   <xsl:param name ="element" select = "local-name(.)"/>
   <xsl:param name = "master-reference" select="''"/>

   <xsl:choose>
     <xsl:when test = "starts-with($master-reference,
       'lot')" >no-force </xsl:when>
     <xsl:when test = "starts-with($master-reference,
       'front')"> no-force </xsl:when>
     <xsl:when test ="$element = 'preface'"> end-on-even</xsl:when>
     <!-- double-sided output -->
<xsl:when test ="$double.sided != 0" > end-on-even</xsl:when> <!-- end-on-even -->
     <!-- single-sided output -->
     <xsl:otherwise> no-force </xsl:otherwise>
   </xsl:choose>
 </xsl:template>

 <!--2. reset initial page number for deleted blank pages-->
 <xsl:template name="initial.page.number">
   <xsl:param name ="element" select = "local-name(.)"/>
   <xsl:param name = "master-reference" select="''"/>

   <!-- Select the first content that the stylesheet places
     after the TOC -->
   <xsl:variable name="first.book.content"
     select= "ancestor::d:book/*[
     not(self::d:title or
     self::d:subtitle or
     self::d:titleabbrev or
     self::d:bookinfo or
     self::d:info or
     self::d:dedication or
     self::d:preface or
     self::d:toc or
     self::d:lot)][1]"/>
   <xsl:choose>
     <!-- double-sided output -->
     <xsl:when test ="$double.sided != 0" >
       <xsl:choose>
         <xsl:when test="starts-with($master-reference,
           'lot')" >auto </xsl:when> <!-- OPTIONS: auto, auto-odd -->
         <xsl:when test="starts-with($master-reference,
           'front')"> auto </xsl:when>
         <xsl:when test="$element = 'preface'">auto </xsl:when>
         <xsl:when test="$element = 'toc'"> auto </xsl:when>
         <xsl:when test="$element = 'book'">1 </xsl:when>
         <!-- preface typically continues TOC roman numerals -->
         <!-- Change page.number.format if not -->
         <xsl:when test="$element = 'preface'">auto-odd </xsl:when>
         <xsl:when test="($element = 'dedication' or $element = 'article')
           and not(preceding::chapter
           or preceding::d:preface
           or preceding::d:appendix
           or preceding::d:article
           or preceding::d:dedication
           or parent::d:part
           or parent::d:reference)"> 1 </xsl:when>
         <xsl:when test="generate-id($first.book.content) =
           generate-id(.)"> 1 </xsl:when>
         <xsl:otherwise> auto-odd </xsl:otherwise>
       </xsl:choose>
     </xsl:when>

     <!-- single-sided output -->
     <xsl:otherwise>
       <xsl:choose>
         <xsl:when test="$element = 'toc'"> auto </xsl:when>
         <xsl:when test="$element = 'book'">1 </xsl:when>
         <xsl:when test="$element = 'preface'">auto </xsl:when>
         <xsl:when test="($element = 'dedication' or $element = 'article') and
           not(preceding::d:chapter
           or preceding::d:preface
           or preceding::d:appendix
           or preceding::d:article
           or preceding::d:dedication
           or parent::d:part
           or parent::d:reference)"> 1 </xsl:when>
         <xsl:when test="generate-id($first.book.content) =
           generate-id(.)"> 1 </xsl:when>
         <xsl:otherwise> auto </xsl:otherwise>
       </xsl:choose>
     </xsl:otherwise>
   </xsl:choose>
 </xsl:template>
====================================================
 <!--specify content for footer text-->
 <xsl:template name="footer.content">
   <xsl:param name ="pageclass" select ="''"/>
   <xsl:param name ="sequence" select ="''"/>
   <xsl:param name ="position" select ="''"/>
   <xsl:param name ="gentext-key" select ="''"/>

   <fo:block>
     <!-- pageclass can be: lot, front, body, back -->
     <!-- sequence can be: odd, even, first, blank -->
     <!-- position can be: left, center, right -->
     <xsl:choose>
       <xsl:when test="$pageclass = 'titlepage'">
          <!--nop; no footer on title pages-->
       </xsl:when>

       <xsl:when test="$pageclass = 'lot' or $pageclass = 'front'">
         <xsl:choose>

           <!-- if double-sided document -->
           <xsl:when test="$double.sided != 0 and ($sequence = 'odd' or
             $sequence = 'first')">
             <xsl:choose>
               <xsl:when test="$position = 'right'" >
                  <fo:page-number/>
               </xsl:when>
             </xsl:choose>
           </xsl:when>

           <xsl:when test="$double.sided != 0 and $sequence = 'even'">
             <xsl:choose>
               <xsl:when test="$position = 'left'" >
                 <fo:page-number/>
               </xsl:when>
             </xsl:choose>
           </xsl:when>

           <!-- if single-sided document -->
             <xsl:when test="$double.sided = 0 and $position = 'center'">
               <fo:page-number/>
             </xsl:when>

           <xsl:otherwise/>
         </xsl:choose>
       </xsl:when>

       <xsl:when test="$pageclass = 'body' or $pageclass = 'back' or $pageclass
         = 'index'">
       <!-- put page number on left for verso pages -->
         <xsl:choose>
           <xsl:when test="$double.sided != 0 and $sequence = 'even'
             and $position='left'">
             <fo:page-number/>
           </xsl:when>

           <!-- put page number on right for recto pages -->
<xsl:when test="$double.sided != 0 and ($sequence = 'odd' or $sequence = 'first')
             and $position='right'">
             <fo:page-number/>
           </xsl:when>

           <!-- put page number on blank pages -->
           <xsl:when test="$sequence='blank'">
             <xsl:choose>
               <xsl:when test="$double.sided != 0 and $position = 'left'">
                 <fo:page-number/>
               </xsl:when>
               <xsl:when test="$double.sided = 0 and $position = 'center'">
                 <fo:page-number/>
               </xsl:when>
               <xsl:otherwise>
                 <!-- nop -->
               </xsl:otherwise>
             </xsl:choose>
           </xsl:when>

           <!-- if single-sided document, put page number in centre for all pages 
-->
           <xsl:when test="$double.sided = 0 and $position='center'">
             <fo:page-number/>
           </xsl:when>
           <xsl:otherwise>
             <!-- put nothing in footer -->
           </xsl:otherwise>
         </xsl:choose>
       </xsl:when>
       </xsl:choose>
   </fo:block>
 </xsl:template>

Dave Gardiner

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