How to escape Javascript in an XQuery function

Question

Is there a way to escape or render Javascript in a xquery function?

Example:

xquery version "1.0-ml";
module namespace tagmanager = "tagmanager";
declare function tagmanager() { < noscript > < iframe src = "//www.googletagmanager.com/ns.html?id=[value]"
    height = "0"
    width = "0"
    style = "display:none;visibility:hidden" > < /iframe></noscript >
        < script > (function(w, d, s, l, i) {
            w[l] = w[l] || [];
            w[l].push({
                'gtm.start': new Date().getTime(),
                event: 'gtm.js'
            });
            var f = d.getElementsByTagName(s)[0],
                j = d.createElement(s),
                dl = l != 'dataLayer' ? '&l=' + l : '';
            j.async = true;
            j.src =
                '//www.googletagmanager.com/gtm.js?id=' + i + dl;
            f.parentNode.insertBefore(j, f);
        })(window, document, 'script', 'dataLayer', 'value'); < /script>
};

Answer 1

CDATA content does not need escaping. The example is obtuse because your generating HTML in an XML lanaguge, I suggest treating the whole thing as a string. Explicit CDATA constructor is only allowed withing an element so you need a wrapper. http://www.w3.org/TR/xquery/#doc-xquery-CDataSectionContents

Example:

xquery version "1.0-ml";
declare namespace html = "http://www.w3.org/1999/xhtml";
declare function local:tagmanager() as xs:string 
{ 
<wrapper> 
<![CDATA[
< noscript > < iframe src = "//www.googletagmanager.com/ns.html?id=[value]"
    height = "0"
    width = "0"
    style = "display:none;visibility:hidden" > < /iframe></noscript >
        < script > (function(w, d, s, l, i) {
            w[l] = w[l] || [];
            w[l].push({
                'gtm.start': new Date().getTime(),
                event: 'gtm.js'
            });
            var f = d.getElementsByTagName(s)[0],
                j = d.createElement(s),
                dl = l != 'dataLayer' ? '&l=' + l : '';
            j.async = true;
            j.src =
                '//www.googletagmanager.com/gtm.js?id=' + i + dl;
            f.parentNode.insertBefore(j, f);
        })(window, document, 'script', 'dataLayer', 'value'); < /script>


]]>
</wrapper>/string()
};

 local:tagmanager()