【问题】
docbook中，写好了xml源码：
<bookinfo>
<title>MPEG简介 + 如何计算CBR和VBR的MP3的播放时间</title>
<author><personname><firstname>Crifan</firstname><surname>Li</surname></personname></author>
<authorinitials>crl</authorinitials>
<revhistory>
<revision>
<revnumber>1.0</revnumber>
<date>2009-09-19</date>
<revremark>
<orderedlist>
<listitem>简介MPEG相关知识</listitem>
<listitem>详细介绍如何计算CBR和VBR的MP3的播放时间</listitem>
</orderedlist>
</revremark>
</revision>
</revhistory>也可以生成对应的html和pdf了。
但是对于其中的revhistory所对应的版本历史部分的内容，
html中是可以正常显示的:
但是pdf中却不显示这部分内容。
【解决过程】
1.参考：docbook-apps message，去：
Print title pages Chapter 13. Print customizations
然后又找到了：
Part III. Customizing DocBook XSL – Chapter 11. Title page customization
然后按照其提示，我去：
docbook-xsl-ns-1.76.1\fo
下面的：
titlepage.templates.xml
中，找到了：
<!-- ==================================================================== -->
<t:titlepage t:element="book" t:wrapper="fo:block">
<t:titlepage-content t:side="recto">
<title
t:named-template="division.title"
param:node="ancestor-or-self::book[1]"
text-align="center"
font-size="&hsize5;"
space-before="&hsize5space;"
font-weight="bold"
font-family="{$title.fontset}"/>
<subtitle
text-align="center"
font-size="&hsize4;"
space-before="&hsize4space;"
font-family="{$title.fontset}"/>
<corpauthor font-size="&hsize3;"
keep-with-next.within-column="always"
space-before="2in"/>
<authorgroup space-before="2in"/>
<author font-size="&hsize3;"
space-before="&hsize2space;"
keep-with-next.within-column="always"/>
<!-- If you add editor, include this t:predicate attribute
because only the first editor generates the list of editors.
<editor t:predicate="[position() = 1]"/>
-->
</t:titlepage-content>
<t:titlepage-content t:side="verso">
<title
t:named-template="book.verso.title"
font-size="&hsize2;"
font-weight="bold"
font-family="{$title.fontset}"/>
<corpauthor/>
<authorgroup t:named-template="verso.authorgroup"/>
<author/>
<!-- If you add editor, include this t:predicate attribute
because only the first editor generates the list of editors.
<editor t:predicate="[position() = 1]"/>
-->
<othercredit/>
<releaseinfo space-before="0.5em"/>
<pubdate space-before="1em"/>
<copyright/>
<abstract/>
<legalnotice font-size="8pt"/>
</t:titlepage-content>
<t:titlepage-separator>
<fo:block break-after="page"/>
</t:titlepage-separator>
<t:titlepage-before t:side="recto">
</t:titlepage-before>
<t:titlepage-before t:side="verso">
<fo:block break-after="page"/>
</t:titlepage-before>
</t:titlepage>然后添加了对应的revision和revhistory，变为：
<!-- ==================================================================== -->
<t:titlepage t:element="book" t:wrapper="fo:block">
<t:titlepage-content t:side="recto">
<title
t:named-template="division.title"
param:node="ancestor-or-self::book[1]"
text-align="center"
font-size="&hsize5;"
space-before="&hsize5space;"
font-weight="bold"
font-family="{$title.fontset}"/>
<subtitle
text-align="center"
font-size="&hsize4;"
space-before="&hsize4space;"
font-family="{$title.fontset}"/>
<corpauthor font-size="&hsize3;"
keep-with-next.within-column="always"
space-before="2in"/>
<authorgroup space-before="2in"/>
<author font-size="&hsize3;"
space-before="&hsize2space;"
keep-with-next.within-column="always"/>
<!-- If you add editor, include this t:predicate attribute
because only the first editor generates the list of editors.
<editor t:predicate="[position() = 1]"/>
-->
<revision/>
<revhistory/>
</t:titlepage-content>
<t:titlepage-content t:side="verso">
<title
t:named-template="book.verso.title"
font-size="&hsize2;"
font-weight="bold"
font-family="{$title.fontset}"/>
<corpauthor/>
<authorgroup t:named-template="verso.authorgroup"/>
<author/>
<!-- If you add editor, include this t:predicate attribute
because only the first editor generates the list of editors.
<editor t:predicate="[position() = 1]"/>
-->
<othercredit/>
<releaseinfo space-before="0.5em"/>
<pubdate space-before="1em"/>
<copyright/>
<abstract/>
<legalnotice font-size="8pt"/>
<revision/>
<revhistory/>
</t:titlepage-content>
<t:titlepage-separator>
<fo:block break-after="page"/>
</t:titlepage-separator>
<t:titlepage-before t:side="recto">
</t:titlepage-before>
<t:titlepage-before t:side="verso">
<fo:block break-after="page"/>
</t:titlepage-before>
</t:titlepage>
再去重新生成fo然后pdf，结果还是没有效果，revhistory还是没有显示。
2.后来随便试着把上述的titlepage.templates.xml中弄几个语法错误，然后调用xsltproc编译，结果顺利通过，证明此处根本没有调用到对应的titlepage.templates.xml。所以还是先要搞清楚，真正调用的是哪个文件。
结果去找了下，发现当前用的xsl是：
docbook_crl.xsl
其中是包含了的另外一个xsl：
<xsl:import href="docbook.xsl"/>
而docbook.xsl中，则是：
<xsl:include href="titlepage.xsl"/>
<xsl:include href="titlepage.templates.xsl"/>
而对于titlepage.templates.xsl，又看到有提示：
<!– This stylesheet was created by template/titlepage.xsl—>
然后去找到了template/titlepage.xsl，但是也还是看不懂其内容。
而对于fo下面的titlepage.xsl，也是很复杂，貌似不好修改。
3.参考：Part III. Customizing DocBook XSL – Chapter 11. Title page customization，然后一步步照葫芦画瓢：
（1）拷贝titlepage.templates.xml为titlepage.templates_crl.xml，然后在
<t:titlepage-content t:side="recto">部分添加了：
<revision/> 和<revhistory/>
（2）用命令：
CLi@PC-CLI-1 ~/develop/docbook/tools/docbook-xsl-ns-1.76.1 $ xsltproc --output fo/titlepage.template_crl.xsl template/titlepage.xsl fo/titlepage.templates_crl.xml
去生成了titlepage.template_crl.xsl
（3）将titlepage.template_crl.xsl添加到了docbook_crl.xsl中：
<xsl:import href="titlepage.template_crl.xsl"/>
（4）在调用xsltproc生成fo：
CLi@PC-CLI-1 ~/develop/docbook/books/VBR/VBR/src $ xsltproc.exe --stringparam section.autolabel 1 --stringparam section.label.includes.component.label 1 --stringparam bibliography.numbered 1 --xinclude -o /home/CLi/develop/docbook/books/VBR/VBR/output/fo/MPEG_VBR.fo /home/CLi/develop/docbook/tools/docbook-xsl-ns-1.76.1/fo/docbook_crl.xsl /home/CLi/develop/docbook/books/VBR/VBR/src/MPEG_VBR.xml Making portrait pages on USletter paper (8.5inx11in)
是OK的。
（5）但是去生成pdf就出错了：
CLi@PC-CLI-1 ~/develop/docbook/books/VBR/VBR/src
$ D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/fop/fop.cmd -c D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/tools/fop/conf/fop.xconf D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/books/VBR/VBR/output/fo/MPEG_VBR.fo -pdf D:/tmp/tmp_dev_root/cgwin/home/CLi/develop/docbook/books/VBR/VBR/output/pdf/MPEG_VBR.pdf
May 4, 2012 1:29:19 PM org.apache.fop.apps.FopFactoryConfigurator configure
INFO: Default page-height set to: 11in
May 4, 2012 1:29:19 PM org.apache.fop.apps.FopFactoryConfigurator configure
INFO: Default page-width set to: 8.26in
May 4, 2012 1:29:19 PM org.apache.fop.cli.Main startFOP
SEVERE: Exception
javax.xml.transform.TransformerException: org.apache.fop.fo.ValidationException: Property ID "id36018215" (found on "fo:list-block") previously used; ID values must be unique within a document! (See position 9:296)
at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:302)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:130)
at org.apache.fop.cli.Main.startFOP(Main.java:174)
at org.apache.fop.cli.Main.main(Main.java:205)
Caused by: javax.xml.transform.TransformerException: org.apache.fop.fo.ValidationException: Property ID "id36018215" (found on "fo:list-block") previously used; ID values must be unique within a document! (See position 9:296)
at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:501)
at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:299)
... 3 more
Caused by: org.apache.fop.fo.ValidationException: Property ID "id36018215" (found on "fo:list-block") previously used; ID values must be unique within a document! (See position 9:296)
at org.apache.fop.events.ValidationExceptionFactory.createException(ValidationExceptionFactory.java:38)
at org.apache.fop.events.EventExceptionManager.throwException(EventExceptionManager.java:54)
at org.apache.fop.events.DefaultEventBroadcaster$1.invoke(DefaultEventBroadcaster.java:175)
at $Proxy0.idNotUnique(Unknown Source)
at org.apache.fop.fo.FObj.checkId(FObj.java:172)
at org.apache.fop.fo.FObj.startOfNode(FObj.java:153)
at org.apache.fop.fo.flow.ListBlock.startOfNode(ListBlock.java:90)
at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder.java:327)
at org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:171)
at org.apache.xalan.transformer.TransformerIdentityImpl.startElement(TransformerIdentityImpl.java:1072)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at org.apache.xerces.xinclude.XIncludeHandler.startElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:484)
... 4 more
---------然后去看了对应的fo文件，的确里面有两个id都是id36018215：
<fo:list-block id="id36018215" space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em" space-after.optimum="1em" space-after.minimum="0.8em" space-after.maximum="1.2em" provisional-distance-between-starts="1.2em" provisional-label-separation="0.2em"><fo:list-item id="id36018198" space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em"><fo:list-item-label end-indent="label-end()"><fo:block>1.</fo:block></fo:list-item-label><fo:list-item-body start-indent="body-start()"><fo:block>简介MPEG相关知识</fo:block></fo:list-item-body></fo:list-item><fo:list-item id="id36018211" space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em"><fo:list-item-label end-indent="label-end()"><fo:block>2.</fo:block></fo:list-item-label><fo:list-item-body start-indent="body-start()">
xxxxxxxxxx
<fo:list-block id="id36018215" space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em" space-after.optimum="1em" space-after.minimum="0.8em" space-after.maximum="1.2em" provisional-distance-between-starts="1.2em" provisional-label-separation="0.2em"><fo:list-item id="id36018198" space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em"><fo:list-item-label end-indent="label-end()"><fo:block>1.</fo:block></fo:list-item-label><fo:list-item-body start-indent="body-start()"><fo:block>简介MPEG相关知识</fo:block></fo:list-item-body></fo:list-item><fo:list-item id="id36018211" space-before.optimum="1em" space-before.minimum="0.8em" space-before.maximum="1.2em"><fo:list-item-label end-indent="label-end()"><fo:block>2.</fo:block></fo:list-item-label><fo:list-item-body start-indent="body-start()"><fo:block>详细介绍如何计算CBR和VBR的MP3的播放时间</fo:block></fo:list-item-body></fo:list-item></fo:list-block>
</fo:block></fo:table-cell></fo:table-row><fo:table-row><fo:table-cell><fo:block>修订 1.4</fo:block></fo:table-cell><fo:table-cell><fo:block>2011-04-24</fo:block></fo:table-cell><fo:table-cell><fo:block/></fo:table-cell></fo:table-row><fo:table-row><fo:table-cell number-columns-spanned="3"><fo:block>
也尝试过，去把docbook_crl.xsl中import titlepage.template_crl.xsl去掉，而手动添加到此处所用到的那个docbook.xsl中，即替换掉
<xsl:include href="titlepage.templates.xsl"/>
或
<xsl:include href="pagesetup.xsl"/>
但却都还是不行。
这是无语了。
4.不过后来手动把那些重复的id改成别的值,比如id36018888，然后就可以生成了对应的pdf了，但是的确是关于revhistory的部分，内容重复了，显示效果如下：
所以，还是要去搞懂，此处为何是重复了。
5.后来，折腾了很长时间，最后无意间才想起来，原来是我在对于book的recto和verso，都添加了对应的revhistory，导致了生成的pdf中，recto所对应的第一页和verso所对应的第二页中，都出现了修订历史。
因此，直接把verso部分的revhistory去掉，即可。
【总结】
想要给docbook的pdf中生成revhistory修订历史的话，此处可简述其逻辑为：
1.新建自己的xml
参考原先自带的titlepage.templates.xml，拷贝一份出来，在：
<t:titlepage t:element="book" t:wrapper="fo:block">
<t:titlepage-content t:side="recto">
部分，添加对应的：
<revhistory>
2.生成相应的xsl
使用xsltproc，根据template/titlepage.xsl，使用上面修改后的xml，生产对应的xsl文件
3. 添加该xsl
将xsl文件添加到你的docbook.xsl文件即可。
4.其余步骤依旧
然后就是按照你之前的步骤了：调用xsltproc生成对应fo，然后再调用fop生成pdf，即可。
具体如何做，请参考：Part III. Customizing DocBook XSL – Chapter 11. Title page customization，