Question

i need data that is only in int format

when the node value comes in and starts with 00 then i need to change the 00 to 20

so when a non int value comes in, i can skip it

good:

<node>2322</node>

skip:

<node>232dasdf2</node>

Replace:

<node>0014</node>

–>

2014

Answer 1

Something like this would work :

<xsl:template match="/root">
<root>
  <xsl:for-each select="//node">
    <xsl:if test=". castable as xs:integer">
      <node>
        <xsl:value-of select="replace(., '^0{2}([\d]+)$', '20$1')"/>
      </node>
    </xsl:if>
  </xsl:for-each>
</root>

EDIT : based on observations by @Michael Kay