Strip CDATA with regex

[Balaras]

Hi,

Can sombody here please help me a bit with a regular expression.
I have a xml file where I need to strip the CDATA sections of any
contained data.

Eg.
<xml>
<tag><[CDATA[ some data ]]></tag>
<tag><[CDATA[ some more data ]]></tag>
</xml>

Should end up like this:
<xml>
<tag><[CDATA[]]></tag>
<tag><[CDATA[]]></tag>
</xml>

Now, I have the start and end of the range
(\[CDATA\[)
and
(\]\]>)

But I cannot figure out how I match any character that is not like the
end of the range.

That is > is ok, ] is ok
but ]]> is not ok.

Thanks in advance,
Balaras

[Martin Honnen]

Re: Strip CDATA with regex



Balaras wrote:

[color=blue]
> Can sombody here please help me a bit with a regular expression.
> I have a xml file where I need to strip the CDATA sections of any
> contained data.
>
> Eg.
> <xml>
> <tag><[CDATA[ some data ]]></tag>[/color]
It should be
<![CDATA[[color=blue]
> <tag><[CDATA[ some more data ]]></tag>
> </xml>
>
> Should end up like this:
> <xml>
> <tag><[CDATA[]]></tag>
> <tag><[CDATA[]]></tag>
> </xml>[/color]

How about parsing the XML into a DOM document and then manipulating
those CDATA section nodes and serializing back, Mozilla example:

var xmlMarkup = [
'<xml>',
'<tag><![CDATA[ some data ]]></tag>',
'<tag><![CDATA[ some more data ]]></tag>',
'</xml>'
].join('\r\n');

var xmlDocument = new DOMParser().par seFromString(xm lMarkup,
'application/xml');

var tagElements = xmlDocument.get ElementsByTagNa me('tag');
for (var i = 0; i < tagElements.len gth; i++) {
var cdataSection = tagElements[i].firstChild;
if (cdataSection.n odeType == 4) {
cdataSection.da ta = '';
}
}

var newXmlMarkup = new XMLSerializer() .serializeToStr ing(xmlDocument );

That yields

<xml>
<tag><![CDATA[]]></tag>
<tag><![CDATA[]]></tag>
</xml>


--

Martin Honnen

http://JavaScript.FAQTs.com/

[Balaras]

Re: Strip CDATA with regex

Thanks Martin,

Actually I posted this to c.l.javascript by accident, it was ment for a
php group. I have to do some preprocessing before the xml is sent to the
client.

However your post helped me in another manner :)
[color=blue]
>
> var newXmlMarkup = new XMLSerializer() .serializeToStr ing(xmlDocument );
>[/color]

I did not know about the XMLSerializer, and I need it :)

Does IE have an equivallent or does a .innerHTML return valid xml ?

/Balaras

[Martin Honnen]

Re: Strip CDATA with regex



Balaras wrote:
[color=blue][color=green]
>>
>> var newXmlMarkup = new XMLSerializer() .serializeToStr ing(xmlDocument );
>>[/color]
>
> I did not know about the XMLSerializer, and I need it :)
>
> Does IE have an equivallent or does a .innerHTML return valid xml ?[/color]

An XML DOM document (or any XML DOM node) with IE has a property named
xml which gives you the serialized markup so with IE/MSXML you can use
xmlDocument.xml
to get the markup.

--

Martin Honnen

http://JavaScript.FAQTs.com/