在 XSLT 1.0 中使用通配符搜索进行分组

Grouping with wildcard search in XSLT 1.0

我想在 xslt 1.0 中做一个简单的 'Muenchian grouping',但也想从不同的节点添加通配符搜索。

我熟悉分组方法,它的 awlays 运行良好,但我遇到了通配符问题,因为它总是显示没有通配符搜索的组标题。

这是我的 xml:

<objects>
<object>
    <output_title>This is a title</output_title>
   <output_year>2011</output_year>
</object>
<object>
    <output_title>This is my title</output_title>
   <output_year>2012</output_year>
</object>
<object>
    <output_title>This is also my title</output_title>
    <output_year>2012</output_year>
</object>
<object>
    <output_title>This is another my title</output_title>
    <output_year>2012</output_year>
</object>
<object>
    <output_title>This is my title</output_title>
    <output_year>2014</output_year>
</object>
<object>
    <output_title>This is our title</output_title>
    <output_year>2015</output_year>
</object>
</objects>

给定字符串 'my':

的通配符搜索,我想输出以下内容
<h4>2012</h4>
<ol>
<li>This is my title</li>
<li>This is also my title</li>
<li>This is another my title</li>
</ol>

<h4>2014</h4>
<ol>
<li>This is my title</li>
</ol>

所以标题“2011”和“2015”不应该出现(但它们出现了,这就是问题所在)

这是我的 XSLT 1.0:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xd="http://www.oxygenxml.com/ns/doc/xsl" version="1.0">
<xsl:param name="search"/>

<!--Key for unique years-->
<xsl:key name="uniqueOutputYearHeading"
    match="contains(translate(objects/object/output_title,$uppercase,$lowercase),translate($search,$uppercase,$lowercase))"
    use="output_year"/>

<xsl:template match="/">

<!--    Generate the unique year headings-->
<xsl:for-each select="//object[generate-id(.)=generate-id(key('uniqueOutputYearHeading',output_year))]">
<xsl:sort select="output_year" data-type="number" order="descending"/>
<h4>
<xsl:value-of select="output_year"/>
</h4>
<ol>
<xsl:for-each select="key('uniqueOutputYearHeading',output_year)">
<xsl:for-each select="output_citation">
<xsl:if test="contains(translate(current(),$uppercase,$lowercase),translate($search,$uppercase,$lowercase))">
<li class="margin-bottom">
<xsl:copy-of select="current()"/>
</li>
</xsl:if>
</xsl:for-each>
</xsl:for-each>
</ol>            
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

但我得到:

<h4>2011</h4>

<h4>2012</h4>
<ol>
<li>This is my title</li>
<li>This is also my title</li>
<li>This is another my title</li>

<h4>2014</h4>
<ol>
<li>This is my title</li>
</ol>

<h4>2015</h4>

我似乎无法让 'contains' 条件适用于年份,只有实际标题。我试过在年度标题之前移动和复制它,但它 returns 什么都没有。此外,我不能在原始密钥结构中包含搜索变量,这将解决问题(我认为)。

我相信这样就可以了:

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml" indent="yes"/>
<xsl:param name="search">my</xsl:param>

<xsl:key name="uniqueOutputYearHeading" match="object" use="output_year"/>

<xsl:template match="objects">
    <xsl:copy>
        <xsl:for-each select="object[contains(output_title,$search)][generate-id() = generate-id(key('uniqueOutputYearHeading', output_year)[contains(output_title,$search)][1])]">
            <h4>
                <xsl:value-of select="output_year"/>
            </h4>
            <ol>
                <xsl:for-each select="key('uniqueOutputYearHeading', output_year)[contains(output_title,$search)]">
                    <li>
                        <xsl:value-of select="output_title"/>
                    </li>
                </xsl:for-each>
            </ol>
        </xsl:for-each>
    </xsl:copy>
</xsl:template>

</xsl:stylesheet>

您需要分两次完成此操作。首先,找到符合搜索条件的节点。然后对结果应用 Muenchian 分组:

XSLT 1.0

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
extension-element-prefixes="exsl">

<xsl:param name="search" />

<xsl:key name="object-by-year" match="object" use="output_year"/>

<xsl:template match="/objects">
    <!-- first pass -->
    <xsl:variable name="found-objects">
        <xsl:copy-of select="object[contains(., $search)]"/>
    </xsl:variable>
    <xsl:variable name="found-objects-set" select="exsl:node-set($found-objects)" />
    <!-- second (final) pass -->
    <html>
        <!-- switch context to the variable -->
        <xsl:for-each select="$found-objects-set">
            <!-- for each distinct year ... -->
            <xsl:for-each select="object[generate-id(.)=generate-id(key('object-by-year', output_year))]">
                <xsl:sort select="output_year" data-type="number"/>
                <h4>
                    <xsl:value-of select="output_year"/>
                </h4>
                <!-- ... list the found objects in this year -->
                <ol>
                    <xsl:for-each select="key('object-by-year', output_year)">
                        <li><xsl:value-of select="output_title" /></li>
                    </xsl:for-each>
                </ol> 
            </xsl:for-each>
        </xsl:for-each>
    </html>
</xsl:template>

</xsl:stylesheet>

应用于您的输入示例,参数为字符串"my",结果为:

<html>
   <h4>2012</h4>
   <ol>
      <li>This is my title</li>
      <li>This is also my title</li>
      <li>This is another my title</li>
   </ol>
   <h4>2014</h4>
   <ol>
      <li>This is my title</li>
   </ol>
</html>

注意:不能在键的匹配模式中使用变量。