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platforms Platforms

Name(s) of hardware and/or software platform(s) on which this code is intended to run. It is assumed that each such platform will have a one-word “name”, and multiple platform names will be separated by spaces.
OPTIONAL on element: <code>
Value Meaning
Text, numbers, or special characters Platform on which the <code> is intended to run, for example, “Mac-OSX”.
Restriction @platforms is an optional attribute; there is no default.
Tagged Sample

Platforms (Mac, Windows, etc.) capable of running the named code

...
<code code-type="xml" code-version="1.0"
  language="xslt" language-version="2.0"
  platforms="windows mac unix" executable="no"
  xml:space="preserve" orientation="portrait"
  position="anchor">
 &lt;xsl:template match="node()" mode="compare"&gt;
   &lt;xsl:copy copy-namespaces="no"&gt;
     &lt;xsl:copy-of select="@*"/&gt;
     &lt;xsl:apply-templates mode="compare"/&gt;
   &lt;/xsl:copy&gt;
 &lt;/xsl:template&gt;
</code>
...