[xep-support] Error reporting

I'm receiving an error report, a warning
[warning] Bad attribute column-width: Cannot multiply type Integer by type Word

I think the problem is
 <xsl:attribute name="column-width">
        <xsl:value-of select="@width"/>
        <xsl:if test="not (contains(@width, '%'))">
          <xsl:text>pt</xsl:text>
        </xsl:if>
      </xsl:attribute>

Where the source is
<col width="1*" align="center" span="1" valign="top"/>
 <col width="4*" span="1" align="left" valign="top"/>

I.e. column 1 should be 1/5, column 2 should be 4/5.
This notation is fine for html... but not xsl-fo?

Any suggestions how to convert these into percentages please
for @column-width

regards

-- 
Dave Pawson
XSLT XSL-FO FAQ.
Docbook FAQ.
http://www.dpawson.co.uk
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