ใครก็ได้ช่วยแปลให้ผมทีครับแต่ละบรรทัดทำงานอย่างไร ช่วยหน่อยนะครับ

<metadataList>
    <metadata lang="en" name="creator">**creator**</metadata>
    <metadata lang="en" name="maintainer">**maintainer**</metadata>
    <metadata lang="en" name="public">**public**</metadata>
  </metadataList>
  <displayItemList>
    <displayItem assigned="true" lang="en" name="name">**title**</displayItem>
    <displayItem assigned="true" lang="en" name="description">**about**</displayItem>
  </displayItemList>
  <search type="mgpp">
    <level name="document">
      <displayItem lang="en" name="name">document</displayItem>
    </level>
    <level name="section">
      <displayItem lang="en" name="name">section</displayItem>
    </level>
    <defaultLevel name="document"/>
    <index name="text">
      <displayItem lang="en" name="name">text</displayItem>
    </index>
    <index name="Title">
      <displayItem lang="en" name="name">titles</displayItem>
    </index>
    <index name="Source">
      <displayItem lang="en" name="name">filenames</displayItem>
    </index>
    <defaultIndex name="text"/>
    <searchType name="plain"/>
    <searchType name="simpleform"/>
    <searchType name="advancedform"/>
    <format>
      <gsf:template match="documentNode">
	<td valign="top">
	  <gsf:link type="document">
	    <gsf:icon type="document"/>
	  </gsf:link>
	</td>
	<td>
	  <gsf:switch>
	    <gsf:metadata name="Title" select="ancestors" separator=": "/>
	    <gsf:when test="exists">
	      <gsf:metadata name="Title" select="ancestors" separator=": "/>:
	    </gsf:when>
	  </gsf:switch>
	  <gsf:link type="document">
	    <gsf:metadata name="Title"/>
	  </gsf:link>
	</td>