stackoverflow question:

ecatalogue.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- result I had before applying the template to check attributes on 'tuple' -->
<ecatalogue>
  <tuple>
    <ObjObjectDiscipline>Artifact;:;Artefact</ObjObjectDiscipline>
    <ObjCatalogueNumber>1966.0224</ObjCatalogueNumber>
    <ObjObjectName>Watch, pocket;:;Montre de poche</ObjObjectName>
    <ObjObjectType>17 JEWELS/EXPOSED WORKS</ObjObjectType>
    <ObjSerialNumber>06431I</ObjSerialNumber>
    <ObjPartNo>001</ObjPartNo>
    <ObjPartNoSum>001</ObjPartNoSum>
    <ArtLexRank_tab>
      <tuple>
        <ArtLexRank>1</ArtLexRank>
      </tuple>
      <tuple>
        <ArtLexRank>2</ArtLexRank>
      </tuple>
      <tuple>
        <ArtLexRank>3</ArtLexRank>
      </tuple>
    </ArtLexRank_tab>
    <ArtLexGroup_tab>
      <tuple>
        <ArtLexGroup>Horology;:;Horlogerie</ArtLexGroup>
      </tuple>
    </ArtLexGroup_tab>
    <ArtLexCategory_tab>
      <tuple>
        <ArtLexCategory>Watches;:;Montres</ArtLexCategory>
      </tuple>
    </ArtLexCategory_tab>
    <ArtLexSubCategory_tab>
      <tuple>
        <ArtLexSubCategory>Pocket;:;Poche</ArtLexSubCategory>
      </tuple>
    </ArtLexSubCategory_tab>
    <tuple name="ObjManufacturerRef">
      <NamOrganisation>Unknown;:;Inconnu</NamOrganisation>
      <NamOrganisationAcronym>Unknown</NamOrganisationAcronym>
      <AddPhysCountry>Unknown</AddPhysCountry>
    </tuple>
    <ArtConFunction>SPECIALLY MADE WITH NO DIAL FACE AND A GLASS BACK SO THAT THE WORKS CAN BE SEEN FROM BOTH SIDES.</ArtConFunction>
    <ArtCompWandDMeasurement_tab>
      <tuple>
        <ArtCompWandDMeasurement>Length;:;longueur</ArtCompWandDMeasurement>
      </tuple>
      <tuple>
        <ArtCompWandDMeasurement>Width;:;largeur</ArtCompWandDMeasurement>
      </tuple>
      <tuple>
        <ArtCompWandDMeasurement>Height;:;hauteur</ArtCompWandDMeasurement>
      </tuple>
    </ArtCompWandDMeasurement_tab>
    <MulMultiMediaRef_tab>
      <tuple>
        <DocIdentifier_tab>
          <tuple>
            <DocIdentifier>http://source.techno-science.ca/images/1966.0224.001.aa.cs.jpg</DocIdentifier>
          </tuple>
          <tuple>
            <DocIdentifier>http://source.techno-science.ca/images/1966.0224.001.aa.cs.thumb.jpg</DocIdentifier>
          </tuple>
        </DocIdentifier_tab>
      </tuple>
    </MulMultiMediaRef_tab>
    <ArtDetMissing>FACE ON FRONT REMOVED AND BACK REPLACED BY GLASS TO       DISPLAY WORKS.</ArtDetMissing>
    <ArtDetFinish>POLISHED GOLD CASE/ BLACK HOUR AND MINUTE HANDS.</ArtDetFinish>
    <NotNotes>SOURCE: PROBABLY ACQUIRED FROM BIRKS FOR NMST EXHIBITION</NotNotes>
    <ArtRefSuppInfo>No;:;Non</ArtRefSuppInfo>
    <ArtRefNumberRange>660223-660224</ArtRefNumberRange>
    <ArtRefArticleNumber>MISSING</ArtRefArticleNumber>
    <ArtRefImage_tab>
      <tuple>
        <ArtRefImage>Black &amp; white negative;:;Négatif noir et blanc</ArtRefImage>
      </tuple>
    </ArtRefImage_tab>
    <ArtRefReferences_tab>
      <tuple>
        <ArtRefReferences>SEE 660223 S.I. FOR CONSERVATION REPORT</ArtRefReferences>
      </tuple>
    </ArtRefReferences_tab>
    <tuple name="LocCurrentLocationRef">
      <LocLevel1>2475</LocLevel1>
    </tuple>
    <LocIndependentlyMoveable>Yes;:;Oui</LocIndependentlyMoveable>
    <AssConditionReport>Yes;:;Oui</AssConditionReport>
    <AssOperable>Yes;:;Oui</AssOperable>
    <AssRestored>No;:;Non</AssRestored>
    <ArtCompWandDValue_tab>
      <tuple>
        <ArtCompWandDValue>005.8</ArtCompWandDValue>
      </tuple>
      <tuple>
        <ArtCompWandDValue>004.6</ArtCompWandDValue>
      </tuple>
      <tuple>
        <ArtCompWandDValue>001.0</ArtCompWandDValue>
      </tuple>
    </ArtCompWandDValue_tab>
    <ArtCompWandDUnit_tab>
      <tuple>
        <ArtCompWandDUnit>cm</ArtCompWandDUnit>
      </tuple>
      <tuple>
        <ArtCompWandDUnit>cm</ArtCompWandDUnit>
      </tuple>
      <tuple>
        <ArtCompWandDUnit>cm</ArtCompWandDUnit>
      </tuple>
    </ArtCompWandDUnit_tab>
    <ArtCompGeneralDescription>GOLD/ STEEL/ GLASS</ArtCompGeneralDescription>
    <ArtCompMaterialCHINGeneral_tab>
      <tuple>
        <ArtCompMaterialCHINGeneral>metal;:;métal</ArtCompMaterialCHINGeneral>
      </tuple>
      <tuple>
        <ArtCompMaterialCHINGeneral>metal;:;métal</ArtCompMaterialCHINGeneral>
      </tuple>
      <tuple>
        <ArtCompMaterialCHINGeneral>glass;:;verre</ArtCompMaterialCHINGeneral>
      </tuple>
    </ArtCompMaterialCHINGeneral_tab>
    <ArtCompMaterialCHINSpecific_tab>
      <tuple>
        <ArtCompMaterialCHINSpecific>gold;:;or</ArtCompMaterialCHINSpecific>
      </tuple>
      <tuple>
        <ArtCompMaterialCHINSpecific>steel;:;acier</ArtCompMaterialCHINSpecific>
      </tuple>
    </ArtCompMaterialCHINSpecific_tab>
    <SrcCulturalProperty>no;:;non</SrcCulturalProperty>
    <SrcPreviousCstmcNos>DS0178</SrcPreviousCstmcNos>
  </tuple>
</ecatalogue>

original_xml.xml

<table name="ecatalogue">
  <tuple>
    <atom name="ObjObjectDiscipline">Artifact;:;Artefact</atom>
    <atom name="ObjCatalogueNumber">1966.0224</atom>
    <atom name="ObjObjectName">Watch, pocket;:;Montre de poche</atom>
    <atom name="ObjObjectType">17 JEWELS/EXPOSED WORKS</atom>
    <atom name="ObjSerialNumber">06431I</atom>
    <atom name="ObjPartNo">001</atom>
    <atom name="ObjPartNoSum">001</atom>
    <table name="ArtLexRank_tab">
      <tuple>
        <atom name="ArtLexRank">1</atom>
      </tuple>
      <tuple>
        <atom name="ArtLexRank">2</atom>
      </tuple>
      <tuple>
        <atom name="ArtLexRank">3</atom>
      </tuple>
    </table>
    <table name="ArtLexGroup_tab">
      <tuple>
        <atom name="ArtLexGroup">Horology;:;Horlogerie</atom>
      </tuple>
    </table>
    <table name="ArtLexCategory_tab">
      <tuple>
        <atom name="ArtLexCategory">Watches;:;Montres</atom>
      </tuple>
    </table>
    <table name="ArtLexSubCategory_tab">
      <tuple>
        <atom name="ArtLexSubCategory">Pocket;:;Poche</atom>
      </tuple>
    </table>
    <tuple name="ObjManufacturerRef">
      <atom name="NamOrganisation">Unknown;:;Inconnu</atom>
      <atom name="NamOrganisationAcronym">Unknown</atom>
      <atom name="AddPhysCountry">Unknown</atom>
    </tuple>
    <atom name="ArtConFunction">SPECIALLY MADE WITH NO DIAL FACE AND A GLASS BACK SO THAT THE WORKS CAN BE SEEN FROM BOTH SIDES.</atom>
    <table name="ArtCompWandDMeasurement_tab">
      <tuple>
        <atom name="ArtCompWandDMeasurement">Length;:;longueur</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompWandDMeasurement">Width;:;largeur</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompWandDMeasurement">Height;:;hauteur</atom>
      </tuple>
    </table>
    <table name="MulMultiMediaRef_tab">
      <tuple>
        <table name="DocIdentifier_tab">
          <tuple>
            <atom name="DocIdentifier">http://source.techno-science.ca/images/1966.0224.001.aa.cs.jpg</atom>
          </tuple>
          <tuple>
            <atom name="DocIdentifier">http://source.techno-science.ca/images/1966.0224.001.aa.cs.thumb.jpg</atom>
          </tuple>
        </table>
      </tuple>
    </table>
    <atom name="ArtDetMissing">FACE ON FRONT REMOVED AND BACK REPLACED BY GLASS TO       DISPLAY WORKS.</atom>
    <atom name="ArtDetFinish">POLISHED GOLD CASE/ BLACK HOUR AND MINUTE HANDS.</atom>
    <atom name="NotNotes">SOURCE: PROBABLY ACQUIRED FROM BIRKS FOR NMST EXHIBITION</atom>
    <atom name="ArtRefSuppInfo">No;:;Non</atom>
    <atom name="ArtRefNumberRange">660223-660224</atom>
    <atom name="ArtRefArticleNumber">MISSING</atom>
    <table name="ArtRefImage_tab">
      <tuple>
        <atom name="ArtRefImage">Black &amp; white negative;:;N&#233;gatif noir et blanc</atom>
      </tuple>
    </table>
    <table name="ArtRefReferences_tab">
      <tuple>
        <atom name="ArtRefReferences">SEE 660223 S.I. FOR CONSERVATION REPORT</atom>
      </tuple>
    </table>
    <tuple name="LocCurrentLocationRef">
      <atom name="LocLevel1">2475</atom>
    </tuple>
    <atom name="LocIndependentlyMoveable">Yes;:;Oui</atom>
    <atom name="AssConditionReport">Yes;:;Oui</atom>
    <atom name="AssOperable">Yes;:;Oui</atom>
    <atom name="AssRestored">No;:;Non</atom>
    <table name="ArtCompWandDValue_tab">
      <tuple>
        <atom name="ArtCompWandDValue">005.8</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompWandDValue">004.6</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompWandDValue">001.0</atom>
      </tuple>
    </table>
    <table name="ArtCompWandDUnit_tab">
      <tuple>
        <atom name="ArtCompWandDUnit">cm</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompWandDUnit">cm</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompWandDUnit">cm</atom>
      </tuple>
    </table>
    <atom name="ArtCompGeneralDescription">GOLD/ STEEL/ GLASS</atom>
    <table name="ArtCompMaterialCHINGeneral_tab">
      <tuple>
        <atom name="ArtCompMaterialCHINGeneral">metal;:;m&#233;tal</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompMaterialCHINGeneral">metal;:;m&#233;tal</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompMaterialCHINGeneral">glass;:;verre</atom>
      </tuple>
    </table>
    <table name="ArtCompMaterialCHINSpecific_tab">
      <tuple>
        <atom name="ArtCompMaterialCHINSpecific">gold;:;or</atom>
      </tuple>
      <tuple>
        <atom name="ArtCompMaterialCHINSpecific">steel;:;acier</atom>
      </tuple>
    </table>
    <atom name="SrcCulturalProperty">no;:;non</atom>
    <atom name="SrcPreviousCstmcNos">DS0178</atom>
  </tuple>
</table>

test_xslt.xslt

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="xml" version="1.0" encoding="UTF-8"
        indent="yes" />
        <xsl:strip-space elements="*"/>
    <xsl:template match="@* | node()">
        <xsl:copy>
            <xsl:apply-templates select="@* | node()" />
        </xsl:copy>
    </xsl:template>
    <xsl:template match="atom">
        <xsl:element name="{@name}">
            <xsl:apply-templates />
        </xsl:element>
    </xsl:template>
    <xsl:template match="table">
        <xsl:element name="{@name}">
            <xsl:apply-templates />
        </xsl:element>
    </xsl:template>
    <xsl:template match="tuple">
      <xsl:choose>
        <xsl:when test="@name">
        <xsl:element name="{@name}">
             <xsl:apply-templates />
        </xsl:element>
        </xsl:when>
        <xsl:otherwise>
         <xsl:copy>
        <xsl:apply-templates />
          </xsl:copy>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:template>
</xsl:stylesheet>