looping the attributes

Hello,
I'm trying to display the whole xml data in a table in a generic way.
I don't know the name of the fields, all I know is the name of the node.

Here is an example
<root>
  <line c1="1" c2="2" />
  <line x1="A" x2="B" />
</root>

I'm looking to produce the following output
<tr>
  <td> 1 </td>
  <td> 2 </td>
</tr>
<tr>
  <td> A </td>
  <td> B </td>
</tr>


here is my xsl code below, does anyone knows what am I missing ?
...
<xsl:for-each select="line">
  <tr>
    <xsl:for-each select="@*">
      <td> <xsl:value-of select="@name()"/> </td>
    </xsl:for-each>
  </tr>
</xsl:for-each>
...


Please help



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