Subject: Re: [xsl] Unexpected MSXML Javascript extension results From: "Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Fri, 20 Jan 2017 10:11:42 -0000 |
Hello all,
We have an XSL transformation that runs using some form of MSXML for the actual transformation. Given that MSXML is XSL 1.0, I am trying to code around the fact that it lacks regular expression functions by writing a JavaScript extension function to match Greek characters and wrap them in a span to avoid them being wrongly transformed to capital letters by smallcap treatment on the text around it. The JavaScript function I wrote appears to work fine if I run it locally, but when run as part of the XSL, it's not recursing properly. I don't have much of a way to debug this, so I'm hoping perhaps someone can either recognize why I'm getting inconsistent recursion, or perhaps suggest an alternative approach. Code/sample text below:
JavaScript Function:
<msxsl:script language="javascript" implements-prefix="uspc"><![CDATA[
//Recursive function to wrap greek characters in nosmallcaps span
function wrapGreek(str){
var regex = /(.*)([N1-O N-N)])(.*)/g;
var m = regex.exec(str);
var rStr = "";
if(m != null){
rStr = wrapGreek(m[1]);
} else {
rStr = str;
}
if(m != null) {
rStr += '<span class="nosmallcaps">' + m[2] + '</span>' + m[3];
}
return "" + rStr;
}
]]></msxsl:script>
Text template:
<xsl:template match="text()" priority="20">
<xsl:variable name="textout">
<xsl:value-of select="."/>
</xsl:variable>
<xsl:value-of disable-output-escaping="yes" select="uspc:wrapGreek($textout)"/>
</xsl:template>
Sample Content:
This head composed correctly:
<title cid="pttFA" id="GUID-04193AE6-05B6-44C1-AB2A-E8A900F93CE3">DESN1CRIPN1TION</title>
For this one, only the second alpha symbol was wrapped, so it did not recurse. Copying this text to a JavaScript interpreter and running the function on it in isolation does appear to recurse correctly.
<title cid="1IMidE" id="GUID-D279E612-1350-4709-B662-8FFEF76CD0C0">InfrN1ared AbsoN1rption, <i cid="2KvZ79">Spectrophotometric Identification Tests, Appendix IIIC</i></title>
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