>Archive Index
>xml-dev Archive Home
>Recent entries

>Thread Prev - [xml-dev] How to parse XML document with default namespace with JDOM
[Thread Next]

RE: [xml-dev] How to parse XML document with default namespace with

From: "Michael Kay" <mike@--------.--->
To: "'Jack Bush'" <netbeansfan@-----.---.-->, <xml-dev@-----.---.--->
Date: 11/4/2008 1:44:00 PM

I see no Saxon code here. You are using the XPath engine that comes with
JDOM. You might be better off asking on the JDOM list. I have to confess I'm
surprised to see you declaring namespaces AFTER compiling the XPath
expression, but I can't say I'm familiar with this API.
 
Michael Kay
http://www.saxonica.com/


  _____  

From: Jack Bush [mailto:netbeansfan@y...] 
Sent: 04 November 2008 13:02
To: xml-dev@l...
Subject: [xml-dev] How to parse XML document with default namespace with
JDOM XPath



Hi All,

 

I am having difficulty parsing using Saxon and TagSoup parser on a namespace
html document. The relevant content of this document are as follows:

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

....

</head>

<body>

    <div id="container">

        <div id="content">

            <table class="sresults">

                <tr>

                    <td>

                        <a href="http://www.abc.com/areas" title="Hollywood,
CA">hollywood</a>

                    </td>

                    <td>

                        <a href="http://www.abc.com/areas" title="San Jose,
CA">san jose</a>

                    </td>

                    <td>

                        <a href="http://www.abc.com/areas" title="San
Francisco, CA">san francisco</a>

                    </td>

                    <td>

                        <a href="http://www.abc.com/areas" title="San Diego,
CA">San diego</a>

                    </td>

              </tr>

....

</body>

</html>

 

Below is the relevant code snippets illustrates how I have attempted to
retrieve the contents (value of  <a>):

 

             import java.util.*;

             import org.jdom.*;

             import org.jdom.xpath.*;

             import org.saxpath.*;

             import org.ccil.cowan.tagsoup.Parser;

 

( 1 )       frInHtml = new FileReader("C:\\Tmp\\ABC.html");

( 2 )       brInHtml = new BufferedReader(frInHtml);

( 3 ) //    SAXBuilder saxBuilder = new
SAXBuilder("org.apache.xerces.parsers.SAXParser");

( 4 )       SAXBuilder saxBuilder = new
SAXBuilder("org.ccil.cowan.tagsoup.Parser");

( 5 )       org.jdom.Document jdomDocument = saxbuilder.build(brInHtml);

( 6 )       XPath xpath =
XPath.newInstance("/ns:html/ns:body/ns:div[@id='container']/ns:div[@id='cont
ent']/ns:table[@class='sresults']/ns:tr/ns:td/ns:a");

( 7 )       xpath.addNamespace("ns", "http://www.w3.org/1999/xhtml");

( 8 )       java.util.List list = (java.util.List)
(xpath.selectNodes(jdomDocument));

( 9 )       Iterator iterator = list.iterator();

( 10 )     while (iterator.hasNext())

( 11 )     {

( 12 )            Object object = iterator.next();

( 13 ) //         if (object instanceof Element)

( 14 ) //
System.out.println(((Element)object).getTextNormalize());

( 15 )             if (object instanceof Content)

( 16 )                   System.out.println(((Content)object).getValue());

              }

..

 

This program would work on the same document without the default namespace,
hence, it would not be necessary to include "ns" prefix along in the XPath
statements (line 6-7) either. Moreover, I was using
"org..apache.xerces.parsers.SAXParser" to have successfully retrieve content
of <a> from the same document without default namespace in the past.

 

I would like to achieve the following objectives if possible:

 

( i ) Exclude DTD and namespace in order to simplifying the parsing process.
How this could be done?

( ii ) If this is not possible, how to include it in XPath statements (line
6-7) so that the value of <a> is picked up correctly?

( iii ) Would changing from "org.apache.xerces.parsers.SAXParser" to
"org.ccil.cowan.tagsoup.Parser" make any difference as far as using XPath is
concerned?

( iv ) Failing to exlude DTD, how to change the lookup of a PUBLIC DTD to a
local SYSTEM one and include a local DTD for reference?

 

I am running JDK 1.6.0_06, Netbeans 6.1, JDOM 1.1, Saxon6-5-5, Tagsoup 1.2
on Windows XP platform.

 

Any assistance would be appreciated.

 

Thanks in advance,

 

Jack


  _____  

Search 1000's of available singles in your area at the new Yahoo!7 Dating.
Get
<http://au.rd.yahoo.com/dating/mail/tagline1/*http://au.dating.yahoo.com/?ci
d=53151&pid=1011> Started.

>Thread Prev - [xml-dev] How to parse XML document with default namespace with JDOM
[Thread Next]

>Archive Index
>xml-dev Archive Home
>Recent entries

Altova Mailing List Archives

RE: [xml-dev] How to parse XML document with default namespace with