我是XSLT的新手，我遇到了一个问题，我有一个未知数量的子元素，我需要在一个表中显示这些子项，以便有5-6列可供显示信息。
如果我得到一个如下所示的XML文件：
<books>
<book>
<author>Ralls, Kim</author>
<title>Midnight Rain</title>
</book>
<book>
<author>Corets, Eva</author>
<title>Maeve Ascendant</title>
</book>
<book>
<author>Corets, Eva</author>
<title>Oberon's Legacy</title>
</book>
<book>
<author>Randall, Cynthia</author>
<title>Lover Birds</title>
</book>
<book>
<author>Thurman, Paula</author>
<title>Splish Splash</title>
</book>
<book>
<author>Knorr, Stefan</author>
<title>Creepy Crawlies</title>
</book>
<book>
<author>Kress, Peter</author>
<title>Paradox Lost</title>
</book>
<book>
<author>Crichton, Michael</author>
<title>Jurassic Park</title>
</book>
<book>
<author>Orwell, George</author>
<title>1984</title>
</book>
<book>
<author>Martin, George</author>
<title>A Song of Ice And Fire</title>
</book>
</books>
我想在一个由两行五列组成的表格中显示这10本书。
我已经走到这一步了：
<xsl:template match="books" mode="table">
<fo:table margin-left="auto" margin-right="auto">
<fo:table-body>
<fo:table-row table-layout="fixed">
<xsl:for-each select="skill">
<fo:table-cell border="1">
<fo:block font-weight="bold">
<xsl:value-of select="name"/>
</fo:block>
</fo:table-cell>
</xsl:for-each>
</fo:table-row>
</fo:table-body>
</fo:table>
</xsl:template>
但所有这一切都会将每个单元放在同一行上。我正在寻找一种方法来检查循环是否运行了一定次数（5或6），并在发生这种情况时插入一个新行，但我不知道这是否可以在XSL中进行。< / p>
有人能指出我正确的方向吗？
答案 0 :(得分：4)
之前的答案是复杂的应该是（和）容易的方式。这么简单的事情不需要递归。
在XSL FO中，您不需要构造包含行的表。您可以使用属性＆＃34; ends-row＆＃34;指定您要结束行并开始新行。您可以轻松地调整这个简单的示例，甚至可以传入＆＃34;列数＆＃34; （参见mod 5 ...这意味着在每第五个开始一个新行...改为4或8或任何你想要的东西）...你只需要创建表的结构（fo：table and fo：桌子外面的这个。在表格体内，只需像这个模板那样将细胞放在子项中：
<xsl:template match="book">
<xsl:variable name="pos" select="position()"/>
<fo:table-cell>
<xsl:if test="not($pos mod 5)">
<xsl:attribute name="ends-row">true</xsl:attribute>
</xsl:if>
<fo:block>
<xsl:value-of select="author"/>
</fo:block>
</fo:table-cell>
</xsl:template>
所以把它放到一个简单的数据示例中......见下文。将您的XML格式化为每行五列。
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
version="1.0">
<xsl:template match="/">
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
<fo:layout-master-set>
<fo:simple-page-master margin-top="1in" margin-left="1in" margin-bottom="1in"
margin-right="1in" page-width="8in" page-height="11in" master-name="first">
<fo:region-body margin-top="0pt"/>
<fo:region-before extent="0pt"/>
<fo:region-after extent="0pt"/>
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="first">
<fo:flow flow-name="xsl-region-body" font-size="12pt" font-family="Helvetica">
<xsl:apply-templates/>
</fo:flow>
</fo:page-sequence>
</fo:root>
</xsl:template>
<xsl:template match="books">
<fo:table>
<fo:table-body>
<xsl:apply-templates/>
</fo:table-body>
</fo:table>
</xsl:template>
<xsl:template match="book">
<xsl:variable name="pos" select="position()"/>
<fo:table-cell border="1pt solid black">
<xsl:if test="not($pos mod 5)">
<xsl:attribute name="ends-row">true</xsl:attribute>
</xsl:if>
<fo:block>
<xsl:value-of select="author"/>
</fo:block>
</fo:table-cell>
</xsl:template>
</xsl:stylesheet>
答案 1 :(得分：0)
一种方法是使用两个递归模板：
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ext="http://exslt.org/common"
xmlns:fo="http://www.w3.org/1999/XSL/Format"
exclude-result-prefixes="ext">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<!-- set the number of columns you want globally -->
<xsl:param name="set-cols" select="'5'"/>
<xsl:template match="books">
<!-- count the needed rows -->
<xsl:variable name="set-row" select="ceiling(count(book) div $set-cols)"/>
<fo:table margin-left="auto" margin-right="auto">
<fo:table-body>
<xsl:call-template name="rows">
<xsl:with-param name="books">
<xsl:apply-templates/>
</xsl:with-param>
<xsl:with-param name="set-row" select="$set-row"/>
</xsl:call-template>
</fo:table-body>
</fo:table>
</xsl:template>
<!-- rows -->
<xsl:template name="rows">
<xsl:param name="books" select="''"/>
<xsl:param name="set-row" select="''"/>
<xsl:param name="count-rows" select="'0'"/>
<xsl:if test="$set-row > 0">
<fo:table-row table-layout="fixed">
<xsl:call-template name="cols">
<xsl:with-param name="books" select="$books"/>
<xsl:with-param name="count-rows" select="$count-rows"/>
</xsl:call-template>
</fo:table-row>
<xsl:call-template name="rows">
<xsl:with-param name="books" select="$books"/>
<xsl:with-param name="set-row" select="$set-row - 1"/>
<xsl:with-param name="count-rows" select="$count-rows + 1"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
<!-- columns -->
<xsl:template name="cols">
<xsl:param name="books" select="''"/>
<xsl:param name="cols" select="$set-cols"/>
<xsl:param name="count-rows" select="''"/>
<xsl:param name="count-cols" select="'1'"/>
<xsl:if test="$cols > 0">
<fo:table-cell border="1">
<fo:block font-weight="bold">
<xsl:variable name="book" select="ext:node-set($books)//book[position() = ($count-rows * $set-cols + $count-cols)]"/>
<xsl:value-of select="$book/author"/>
</fo:block>
</fo:table-cell>
<xsl:call-template name="cols">
<xsl:with-param name="books" select="$books"/>
<xsl:with-param name="cols" select="$cols - 1"/>
<xsl:with-param name="count-rows" select="$count-rows"/>
<xsl:with-param name="count-cols" select="$count-cols + 1"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
输入
<books>
<book>
<author>Ralls, Kim</author>
<title>Midnight Rain</title>
</book>
<book>
<author>Corets, Eva</author>
<title>Maeve Ascendant</title>
</book>
<!-- ... -->
</books>
你得到：
<fo:table margin-left="auto" margin-right="auto" xmlns:fo="http://www.w3.org/1999/XSL/Format">
<fo:table-body>
<fo:table-row table-layout="fixed">
<fo:table-cell border="1">
<fo:block font-weight="bold">Ralls, Kim</fo:block>
</fo:table-cell>
<fo:table-cell border="1">
<fo:block font-weight="bold">Corets, Eva</fo:block>
</fo:table-cell>
<fo:table-cell border="1">
<fo:block font-weight="bold">Corets, Eva</fo:block>
</fo:table-cell>
<fo:table-cell border="1">
<fo:block font-weight="bold">Randall, Cynthia</fo:block>
</fo:table-cell>
<fo:table-cell border="1">
<fo:block font-weight="bold">Thurman, Paula</fo:block>
</fo:table-cell>
</fo:table-row>
<fo:table-row table-layout="fixed">
<fo:table-cell border="1">
<fo:block font-weight="bold">Knorr, Stefan</fo:block>
</fo:table-cell>
<fo:table-cell border="1">
<fo:block font-weight="bold">Kress, Peter</fo:block>
</fo:table-cell>
<fo:table-cell border="1">
<fo:block font-weight="bold">Crichton, Michael</fo:block>
</fo:table-cell>
<fo:table-cell border="1">
<fo:block font-weight="bold">Orwell, George</fo:block>
</fo:table-cell>
<fo:table-cell border="1">
<fo:block font-weight="bold">Martin, George</fo:block>
</fo:table-cell>
</fo:table-row>
</fo:table-body>
</fo:table>