xml – XSLT 2.0：如何使用条件检查迭代for-each循环内的数组的

<xsl:variable name="tracks"
  select="plist/dict/array/dict[integer[preceding-sibling::key[1]='Playlist ID']=6711]/array/dict/integer[preceding-sibling::key[1]='Track ID']" />

或者你可以在你的文档的开头使用xsl：keys,我假设轨道信息的路径是/ plist / dict / array / dict,第一个dict键是Tracks

<xsl:key 
        name="playlists"
        match="plist/dict/array/dict/array/dict/integer[preceding-sibling::key[1]='Track ID']"
        use="../../../integer[preceding-sibling::key[1]='Playlist ID']"
/>
<xsl:key 
       name="tracks" 
       match="/plist/dict/array[preceding-sibling::key[1]='Tracks']/dict"
       use="integer[preceding-sibling::key[1]='Track ID']"
/>

这允许您执行键(‘播放列表’,’4555′)以返回与播放列表ID 4555相关联的所有轨迹以及键(‘轨迹’,’1234′)以获取与轨道ID 1234相关联的dict对象

然后你可以将两者结合起来做

<xsl:variable "mytracks" select="key('tracks',key('playlists','6711'))" />

这将设置$mytracks等于播放列表6711中的曲目的dict对象数组.它还具有xsl：key授予的速度增强的好处

编辑更新—-

我猜你正试图从这里制作一个CSV,所以这段代码应该这样做

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl">
  <xsl:output method="text" />
  <xsl:key
    name="playlists"
    match="plist/dict/array/dict/array/dict/integer[preceding-sibling::key[1]='Track ID']"
    use="../../../integer[preceding-sibling::key[1]='Playlist ID']"
  />
  <xsl:key
    name="tracks"
    match="/plist/dict/dict/dict"
    use="integer[preceding-sibling::key[1]='Track ID']"
  />

  <xsl:template match="/">
    <xsl:variable name="myplaylist" select="'6711'"/>
    <xsl:for-each select="key('tracks',$myplaylist))">
      <xsl:value-of select="integer[preceding-sibling::key[1]='Track ID']"/>
      <xsl:text>,</xsl:text>
      <xsl:value-of select="string[preceding-sibling::key[1]='Name']"/>
      <xsl:text>,</xsl:text>
      <xsl:value-of select="integer[preceding-sibling::key[1]='Total Time']"/>
      <xsl:text>,</xsl:text>
      <xsl:value-of select="string[preceding-sibling::key[1]='Location']"/>
      <xsl:text>&#xa;</xsl:text>
    </xsl:for-each>
  </xsl:template>
</xsl:stylesheet>

匹配不同的播放列表ID只需更改myplaylist的值

– 不带xsl：key的EDED版本,再次只是改变myplaylist变量的值

–EDIT现在mofified为播放列表的原始排序顺序
–EDIT尝试解决Qt限制

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl">
  <xsl:output method="text" />

  <xsl:template match="/">
    <xsl:variable name="myplaylist" select="'4053'"/>
    <xsl:variable name="playlist_tracks" select="/plist/dict/array/dict[integer[preceding-sibling::key[1]='Playlist ID']=$myplaylist]/array/dict/integer[preceding-sibling::key[1]='Track ID']" />

    <xsl:for-each select="$playlist_tracks">
      <xsl:variable select="." name="current" />
      <xsl:for-each select ="/plist/dict/dict/dict[integer[preceding-sibling::key[1]='Track ID']=$current]" >
        <xsl:value-of select="integer[preceding-sibling::key[1]='Track ID']"/>
        <xsl:text>,</xsl:text>
        <xsl:value-of select="string[preceding-sibling::key[1]='Name']"/>
        <xsl:text>,</xsl:text>
        <xsl:value-of select="integer[preceding-sibling::key[1]='Total Time']"/>
        <xsl:text>,</xsl:text>
        <xsl:value-of select="string[preceding-sibling::key[1]='Location']"/>
        <xsl:text>&#xa;</xsl:text>
      </xsl:for-each>
    </xsl:for-each>
  </xsl:template>
</xsl:stylesheet>