NodeJS xml2js - removes CDATA tag while converting from XML to JSON

Question

In NodeJS by using xml2js module I am converting the XML string to JSON object and after some edit again converting that JSON object back into XML. All this is working well however the problem is that CDATA tags are missing in the converted XML. Can someone help me with this? I am giving the sample code below which has the same issue.

var xml2js = require('xml2js');
var parser = new xml2js.Parser();
parser.parseString("<myxml myattribute='value'><![CDATA[Hello again]]>
</myxml>", function (err, data) {   

var builder = new xml2js.Builder({
cdata: true
});
var xml = builder.buildObject(data);
 console.log(" ------------ "+xml);
});

Thanks -kt

Please change the title to "NodeJS xml2js - removes CDATA tag while converting from XML to JSON" — Smile4ever
– Smile4ever, Commented May 12, 2017 at 11:43
I have lots of XML where CDATA is used. I am developing application to edit those xml and save the updated xml. Hence need to keep the xml structure as it is. — KT B
– KT B, Commented May 12, 2017 at 11:48
Do you know what CDATA does? Do you know why it might be removed? (I.e., do you know why it might not matter that it is removed?) See stackoverflow.com/questions/2784183/what-does-cdata-in-xml-mean — Cody Geisler
– Cody Geisler, Commented May 12, 2017 at 12:37
@Cody.G: I have some html tags and few array code in the xml as a content hence it is added in CDATA tag. As I said above I need to keep the xml structure (with CDATA) as it is while editing the xml and saving it. I noticed that while parsing the XML string and converting it into JSON object the CDATA tags get removed. — KT B
– KT B, Commented May 12, 2017 at 13:44

Cody Geisler · Accepted Answer · 2017-05-12 12:43:02Z

3

Please read https://github.com/Leonidas-from-XIV/node-xml2js/issues/218

Per the package author, per wikipedia:

A CDATA section is merely an alternative syntax for expressing character data; there is no semantic difference between character data that manifests as a CDATA section and character data that manifests as in the usual syntax in which "<" and "&" would be represented by "<" and "&", respectively.

The documentation states for the option cdata:

cdata (default: false): wrap text nodes in instead of escaping when necessary. Does not add if it is not required. Added in 0.4.5.

answered May 12, 2017 at 12:43

Cody Geisler

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