Parsing <content:encode d> through JS

[kashaziz]

Hello,

I am here after head-banging with this issue for several days. I am
trying to parse a feed using JS and have stucked on the
<content:encode d> tag. I have tried getElementsbyTa gName but its not
working.

Any suggstions?

Kashif

[Martin Honnen]

kashaziz wrote:

I am here after head-banging with this issue for several days. I am
trying to parse a feed using JS and have stucked on the
<content:encode d> tag. I have tried getElementsbyTa gName but its not
working.

Is that well-formed XML with namespaces meaning content is a prefix and
declared e.g. with
xmlns:content=" http://example.org/2006/whatever"
?
Then with Mozilla and with Opera use e.g.

xmlDocument.get ElementsByTagNa meNS('http://example.org/2006/whatever',
'encoded')
instead of getElementsByTa gName.
For IE 6 and MSXML 3 you can use XPath e.g.
xmlDocument.set Property('Selec tionLanguage', 'XPath');
xmlDocument.set Property('Selec tionNamespaces' ,
'xmlns:content= "http://example.org/2006/whatever"');
var encodedElements = xmlDocument.sel ectNodes('//content:encoded ');

Both getElementsByTa gNameNS and selectNodes can also be called on
element nodes instead on on the document node. But note that selectNodes
takes an XPath expression, use a relative expression e.g.
element.selectN odes('content:e ncoded')
or
element.selectN odes('.//content:encoded ')
to find elements relative to the element the method is called on.
--

Martin Honnen
http://JavaScript.FAQTs.com/

[Thomas 'PointedEars' Lahn]

Martin Honnen wrote:

kashaziz wrote:

I am here after head-banging with this issue for several days. I am
trying to parse a feed using JS and have stucked on the
<content:encode d> tag. I have tried getElementsbyTa gName but its not
working.

Is that well-formed XML with namespaces meaning content is a prefix and
declared e.g. with
xmlns:content=" http://example.org/2006/whatever"
?
Then with Mozilla and with Opera use e.g.

xmlDocument.get ElementsByTagNa meNS('http://example.org/2006/whatever',
'encoded')
instead of getElementsByTa gName.
For IE 6 and MSXML 3 you can use XPath e.g.
[...]

The Gecko DOM has XPath support, too.

<URL:http://xulplanet.com/references/objref/>
<URL:http://kb.mozillazine. org/XPath>
<URL:http://developer.mozil la.org/en/docs/XPath>
PointedEars

[Martin Honnen]

Thomas 'PointedEars' Lahn wrote:

The Gecko DOM has XPath support, too.

Right, Opera 9 will also implement the W3C DOM Level 3 XPath API (only a
W3C note, not a recommendation) but to access elements in namespaced
documents safely getElementsByTa gNameNS is sufficient and much easier to
use than the W3C DOM Level 3 XPath API.

--

Martin Honnen
http://JavaScript.FAQTs.com/

[kashaziz]

The Feed is:
<?xml version="1.0" encoding="UTF-8"?>
<!-- generator="word press/1.5.2" -->
<rss version="2.0"
xmlns:content=" http://purl.org/rss/1.0/modules/content/"
xmlns:wfw="http ://wellformedweb.o rg/CommentAPI/"
xmlns:dc="http://purl.org/dc/elements/1.1/"

<channel>
<title>Apnijobs .com: Jobs in Pakistan</title>
<link>http://www.apnijobs.co m</link>
<description>Wo rk for pleasure, not for creating more work - Search
Jobs in Pakistan and around the World.</description>
<pubDate>Mon, 27 Mar 2006 10:35:13 +0000</pubDate>
<generator>http ://wordpress.org/?v=1.5.2</generator>
<language>en</language>

<item>
<title>Teache rs Required for Nursery / Kindergarten and Junior School
(Karachi)</title>
<link>http://www.apnijobs.co m/teachers-required-for-nursery-kindergarten-and-junior-school-karachi.html</link>
<comments>htt p://www.apnijobs.co m/teachers-required-for-nursery-kindergarten-and-junior-school-karachi.html#co mments</comments>
<pubDate>Mon, 27 Mar 2006 10:34:17 +0000</pubDate>
<dc:creator>A li Asgher</dc:creator>

<category>Teach ing</category>
<category>Listi ng</category>
<category>Job s</category>
<guid>http://www.apnijobs.co m/teachers-required-for-nursery-kindergarten-and-junior-school-karachi.html</guid>
<description> <![CDATA[<p>School of excellence requires teachers for
Nursery / Kindergarten and Junior school Science teach...</p>
]]></description>
<content:encode d><![CDATA[<p>School of excellence requires teachers
for Nursery / Kindergarten and Junior school Science teacher for
immediate appointment. </p>

<p>Contact 021-4981303, 4816345.</p>

<p>Address: D-2, Block-4, Gulshan-e-Iqbal, Karachi.</p>

<p>E-mail: so*@cyber.net.p k</p>
]]></content:encoded >
<wfw:commentRSS >http://www.apnijobs.co m/teachers-required-for-nursery-kindergarten-and-junior-school-karachi.html/feed/</wfw:commentRSS>
</item>
--------------------------------------------------------------------------------------------------------

and the code is:
for (var i=0; i<this.feeditem s.length; i++){
if(i==this.feed _id){
var feedfound=1
this.title[i]=this.feeditems[i].getElementsByT agName("title")[0].firstChild.nod eValue

this.link[i]=this.feeditems[i].getElementsByT agName("link")[0].firstChild.nod eValue

this.descriptio n[i]=this.feeditems[i].getElementsByT agName("descrip tion")[0].firstChild.nod eValue

this.pubdate[i]=this.feeditems[i].getElementsByT agName("pubDate ")[0].firstChild.nod eValue
tickercontent = "<a
href="+this.lin k[i]+">"+this.ti tle[i]+"</a>"+"<br/>"

}
}

[Martin Honnen]

kashaziz wrote:

The Feed is:
<?xml version="1.0" encoding="UTF-8"?>
<!-- generator="word press/1.5.2" -->
<rss version="2.0"
xmlns:content=" http://purl.org/rss/1.0/modules/content/" <content:encode d><![CDATA[<p>School of excellence requires teachers
for Nursery / Kindergarten and Junior school Science teacher for
immediate appointment. </p>

<p>Contact 021-4981303, 4816345.</p>

<p>Address: D-2, Block-4, Gulshan-e-Iqbal, Karachi.</p>

<p>E-mail: so*@cyber.net.p k</p>
]]></content:encoded >

Then use the already suggested code, the above is XML with namespaces so
with Mozilla and Opera make use of the W3C DOM Level 2 namespace aware
methods like getElementsByTa gNameNS e.g.
var encodedElements = xmlDocument.get ElementsByTagNa meNS(
'http://purl.org/rss/1.0/modules/content/',
'encoded'
);
Then you get a DOM NodeList the same as with getElementsByTa gName so you
should know how to loop through. Only note that the contents of those
content:encoded elements seems to be a single CDATA section node to
escape HTML markup snippets. You can read out that HTML markup snippets
as text (e.g. encodedElements[0].firstChild.dat a) but inside of a CDATA
section it will not be parsed into nodes.

And for IE 6/MSXML 3 you can use selectNodes and XPath 1.0 to get a DOM
NodeList as suggested
xmlDocument.set Property('Selec tionLanguage', 'XPath');
xmlDocument.set Property('Selec tionNamespaces' ,
'xmlns:content= "http://purl.org/rss/1.0/modules/content/"');
var encodedElements = xmlDocument.sel ectNodes('.//content:encoded ');
--

Martin Honnen
http://JavaScript.FAQTs.com/

[kashaziz]

I have tried var encodedElements = xmldata.getElem entsByTagNameNS (
"http://purl.org/rss/1.0/modules/content/", "encoded"); but it returns
a 0 length value.

[kashaziz]

Any suggestion guys?