How to use a variable inside an XSL select statement?

Question

I am quite new to XSL and I would like to use my variable $language inside my XSL:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

  <xsl:template match="data">

    <xsl:value-of select="concat(//text-, $language)"/> 

  </xsl:template>

</xsl:stylesheet>

How can this be done?

This is my XML:

<data>
  <params>
    <language>en</language>
  </params>

  <static>
    <entry id="1">
        <text-en>Hello</text-en>
    </entry>
    <entry id="2">
        <text-fr>Boujour</text-fr>
    </entry>
  </static>
</data>

Thanks for any help!

Answer 1

You should change the structure of the input XML and use e.g. <text xml:lang="en">Hello</text> if you can, then you can write <xsl:value-of select="//text[lang($language)]"/>.

If you can't change the structure of the input XML, use <xsl:value-of select="//*[local-name() = concat('text-', $language)]"/>.