XSL-FO页面-母版-有时会耗尽替代品

Question

对于书籍，我有一些健壮的样式表。目前，我不知道哪里可能是问题所在。我的样式表有时起作用，有时不起作用，这取决于TOC的长度，我可以根据希望包含在其中的级别的数量动态地更改它。

我的样式表是这样工作的(我的意图是)：

让印记部分从标题开始-页面，以偶数页结尾，如果TOC的最后一页是奇怪的，在它后面放置一个空白页：

        <fo:page-sequence-master master-name="Imprints">
            <fo:repeatable-page-master-alternatives>
                <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank" page-position="any"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Title-Page" odd-or-even="odd" page-position="first"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.CopyRight-Page" odd-or-even="even" page-position="rest"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.TOC" odd-or-even="odd" page-position="rest"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.TOC" odd-or-even="even" page-position="rest"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.TOC" odd-or-even="odd" page-position="last"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.TOC" odd-or-even="even" page-position="last"/>
            </fo:repeatable-page-master-alternatives>
        </fo:page-sequence-master>

让主体部分内容页开始于TOC之后的第一个奇数页(或之后的空白页)，让每个章节开始于前一章之后的奇数页(最后一页或空白)，以偶数页结束。如果最后一页应该是奇怪的，则强制使用一个空白页(我认为这可能是问题所在，因为我处理了整个部分以及特定章节)：

        <fo:page-sequence-master master-name="Content-Pages">
            <fo:repeatable-page-master-alternatives>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right.First" odd-or-even="odd" page-position="first"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank" page-position="any"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Left" odd-or-even="even" page-position="rest"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right" odd-or-even="odd" page-position="rest"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Left" odd-or-even="even" page-position="last"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right" odd-or-even="odd" page-position="last"/>
            </fo:repeatable-page-master-alternatives>
        </fo:page-sequence-master>

我这样称呼他们(我不知道force-page-count="even"和force-page-count="end-on-even"之间有什么区别。我检查了一些文档，但我仍然不清楚)：

    <fo:page-sequence master-reference="Imprints" force-page-count="even">
        <fo:flow flow-name="xsl-region-body">
            <fo:block>
                <xsl:apply-templates select="//tei:TEI/tei:teiHeader" mode="draft"/>
            </fo:block>
        </fo:flow>
    </fo:page-sequence>
    <fo:page-sequence master-reference="PageMaster.CopyRight-Page">
        <fo:flow flow-name="xsl-region-body">
            <fo:block xsl:use-attribute-sets="p">
                © Copyright!
            </fo:block>
        </fo:flow>
    </fo:page-sequence>
    <fo:page-sequence master-reference="PageMaster.TOC">
        <fo:flow flow-name="xsl-region-body">
            <fo:block>
                <xsl:apply-templates select="//tei:TEI/tei:text" mode="toc"/>
            </fo:block>
        </fo:flow>
    </fo:page-sequence>
    <xsl:for-each select="//tei:div[@n='1']">
        <fo:page-sequence master-reference="Content-Pages" force-page-count="end-on-even">
            <fo:static-content flow-name="Region-Before-Left">
                <fo:block xsl:use-attribute-sets="running-header-left">
                    <fo:inline xsl:use-attribute-sets="running-header-pageno-left">
                        <fo:page-number/>
                    </fo:inline>
                </fo:block>
            </fo:static-content><!-- Running header right -->
            <fo:static-content flow-name="Region-Before-Right">
                <fo:block xsl:use-attribute-sets="running-header-right">
                    <fo:inline xsl:use-attribute-sets="running-header-pageno-right">
                        <fo:page-number/>
                    </fo:inline>
                </fo:block>
            </fo:static-content>
            <fo:static-content flow-name="xsl-footnote-separator">
                <fo:block>
                    <fo:leader xsl:use-attribute-sets="footnote-separator"/>
                </fo:block>
            </fo:static-content>
            <fo:flow flow-name="xsl-region-body">
                <xsl:apply-templates select="."/>
            </fo:flow>
        </fo:page-sequence>
    </xsl:for-each>

当它失败并抛出Subsequences exhausted in page-sequence-master "Content-Pages", cannot recover. (No context info available)时，它有助于更改force-page-count或添加对PageMaster.Page-Right.First的另一个引用，并使其在even页面上成为可能。这样，章节有时会从奇数页面开始，但是有页码(他们不应该这么做)。真让人费解。

甚至补充说：

<fo:conditional-page-master-reference master-reference="PageMaster.Page-Right.First" odd-or-even="odd" page-position="rest"/>

…帮不上忙。

我使用最后一个Saxon HE和ApacheFOP1.1。

更新

根据@Tony_Graham，进展如下：

        <fo:page-sequence-master master-name="Imprints">
            <fo:repeatable-page-master-alternatives>
                <fo:conditional-page-master-reference master-reference="PageMaster.Title-Page" odd-or-even="odd" page-position="first"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.CopyRight-Page" odd-or-even="even" page-position="rest"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.TOC"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank"/>
            </fo:repeatable-page-master-alternatives>
        </fo:page-sequence-master>
        <fo:page-sequence-master master-name="Content-Pages">
            <fo:repeatable-page-master-alternatives>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right.First" odd-or-even="odd" page-position="first"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Left" odd-or-even="even" page-position="rest"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right" odd-or-even="odd" page-position="rest"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Left" odd-or-even="even" page-position="last"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right" odd-or-even="odd" page-position="last"/>
                <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank"/>
            </fo:repeatable-page-master-alternatives>

其余的：

<fo:page-sequence master-reference="Imprints" force-page-count="end-on-even">
...

<fo:page-sequence master-reference="PageMaster.CopyRight-Page" initial-page-number="auto-odd">
...

Answer 1

将force-page-count="end-on-even"放在fo:page-sequence 上，然后放在要在奇怪的页面上开始的 fo:page-sequence之前。或者，在initial-page-number="auto-odd"上设置fo:page-sequence。请参阅https://www.w3.org/TR/xsl11/#initial-page-number

force-page-count="even"的意思是，如果页面序列从偶数页开始，它将以奇数页结束，从而使它成为偶数页，反之亦然，如果它开始于奇数页。不管页面序列是从奇数页还是偶数页开始，force-page-count="end-on-even"都会在奇数页上完成。(啊格式化程序有扩展以“双-偶数”结束，而且还有更多的扩展，并强制整个文档的页数以偶数页结束，请参见https://www.antennahouse.com/product/ahf63/ahf-ext.html#axf.force-page-count)但是，initial-page-number很可能会满足您的需要。

另外：

1. 您不需要使用两个不同的fo:conditional-page-master-reference重复使用odd-or-even来选择相同的主页面。这与一个没有fo:conditional-page-master-reference的odd-or-even相同，因为默认值是any。见https://www.w3.org/TR/xsl11/#odd-or-even。
2. 您可以删除显式page-position="any"，因为这是默认的。
3. “印记”有两个‘奇数或偶数=’偶数‘页面位置=’rest‘，所以第二个永远不会被使用。
4. 为奇数/偶数和rest/last选择相同的"PageMaster.TOC“可以简化为page-position="any"。

更新

您可以将当前的fo:page-sequence-master更改为：

    <fo:page-sequence-master master-name="Imprints">
        <fo:repeatable-page-master-alternatives>
            <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.Title-Page" page-position="first"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.CopyRight-Page" odd-or-even="even" page-position="rest"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.TOC"/>
        </fo:repeatable-page-master-alternatives>
    </fo:page-sequence-master>
    <fo:page-sequence-master master-name="Content-Pages">
        <fo:repeatable-page-master-alternatives>
            <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right.First" page-position="first"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.Page-Left" odd-or-even="even"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right" odd-or-even="odd"/>
        </fo:repeatable-page-master-alternatives>

在fo:repeatable-page-master-alternatives中，“从子序列开始就对条件进行了测试”，因此您希望将最不可能的替代方案放在首位。(参见repeatable-page-master-alternatives)你也希望在最后有一个完全可选的选择，但你已经有了这个问题。

然而，我不明白为什么“印记”包括“PageMaster.CopyRightPage”和"PageMaster.TOC“，而版权页面和ToC都是在单独的页面序列中引用特定的页面主。你可能更想要这样的东西：

    <fo:page-sequence-master master-name="Imprints">
        <fo:repeatable-page-master-alternatives>
            <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.Title-Page"/>
        </fo:repeatable-page-master-alternatives>
    </fo:page-sequence-master>
    <fo:page-sequence-master master-name="TOC">
        <fo:repeatable-page-master-alternatives>
            <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.TOC"/>
        </fo:repeatable-page-master-alternatives>
    </fo:page-sequence-master>
    <fo:page-sequence-master master-name="CopyRight-Page">
        <fo:repeatable-page-master-alternatives>
            <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.CopyRight-Page"/>
        </fo:repeatable-page-master-alternatives>
    </fo:page-sequence-master>
    <fo:page-sequence-master master-name="Content-Pages">
        <fo:repeatable-page-master-alternatives>
            <fo:conditional-page-master-reference master-reference="PageMaster.Blank" blank-or-not-blank="blank"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right.First" page-position="first"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.Page-Left" odd-or-even="even"/>
            <fo:conditional-page-master-reference master-reference="PageMaster.Page-Right" odd-or-even="odd"/>
        </fo:repeatable-page-master-alternatives>
...
<fo:page-sequence master-reference="Imprints">
...
<fo:page-sequence master-reference="CopyRight-Page" initial-page-number="auto-odd">
...
<fo:page-sequence master-reference="PageMaster.TOC" initial-page-master="auto-odd">
...
<xsl:for-each select="//tei:div[@n='1']">
    <fo:page-sequence master-reference="Content-Pages" initial-page-number="auto-odd">