javascript - using xsl:stream of XSLT 2.1 -

i have javascript converts applies xsl xml. need use xslt 2.1 in order use feature xsl:stream.

now script follows :

       main();  function main() {     if ( wscript.arguments.length != 3 )     {         wscript.echo("usage: runtransform.js <xslfilename> <xmlfilename> <outputfilename>");         wscript.quit();     }     var xslfilename = wscript.arguments.item(0);     var xmlfilename = wscript.arguments.item(1);     var outputfilename = wscript.arguments.item(2);     var doc = loaddom(xmlfilename);     var xsl = loaddom(xslfilename);    var str = doc.transformnode(xsl);   var ado = new activexobject("adodb.stream"); ado.open(); ado.position = 0; ado.charset = "utf-8"; ado.writetext(str); ado.savetofile(outputfilename, 2)  }  function loaddom(file) {    var dom;    try {      dom = makedom(null);      dom.load(file);    }    catch (e) {      alert("error" + e.description);    }    return dom; }  function makedom(progid) {   if (progid == null) {     progid = "msxml2.domdocument.4.0";   }    var dom;   try {       wscript.echo("progid dom 4");     dom = new activexobject(progid);     dom.async = false;     dom.validateonparse = false;     //dom.resolveexternals = false;   }   catch (e) {     alert("makedom error :" + e.description);   }   return dom; }  function alert(str) {   wscript.echo(str); } 

the sample xml trying follows :

<?xml version="1.0" encoding="iso-8859-1"?> <!-- edited xmlspy® --> <transactions>   <transaction value="12.51"/>   <transaction value="3.99"/> </transactions> 

the xsl applied follows :

   <?xml version="1.0" encoding="iso-8859-1" ?>     <!--  edited xmlspy® -->    <xsl:stylesheet version="2.1" xmlns:xsl="http://www.w3.org/1999/xsl/transform">   <xsl:mode streamable="yes" />    <xsl:stream href="e:\test_folder_stream\transactions.xml">   <count>   <xsl:value-of select="count(transactions/transaction)" />    </count>   </xsl:stream>   </xsl:stylesheet> 

the output follows :

<?xml version="1.0"?> 

ideally should output :

<?xml version="1.0">  <count>2</count> 

the script executed follows :

test.js transactions.xsl transactions.xml output.xml 

the script not throw error . xsl have written incomplete ? suggestions or links valuable .

thanks in advance tazim.

i don't think there xslt processor available implements xsl:stream.

saxon 9.3 implements many of streaming features in xslt 2.1 (now xslt 3.0) working draft, not yet xsl:stream instruction. suspect using xslt 1.0 processor. if specify version="2.1" in stylesheet , throw @ xslt 1.0 processor, ignore children of xsl:stylesheet element doesn't understand.

in fact xsl:stream defined in xslt 3.0 instruction, can't appear child of xsl:stylesheet - needs go in function or template.

if need streamed processing, copy of saxon 9.3 enterprise edition, , read documentation see subset of working draft implemented. won't able use javascript, unfortunately.