Re: [xml] help required in libxml parser

Dear Madam or Sir M.V.Satya Bhaskar,

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----- Original Message -----
From: "M.V.Satya Bhaskar" <bhaskar maddala wipro com>
To: <xml gnome org>
Sent: Friday, September 27, 2002 12:48 PM
Subject: [xml] help required in libxml parser

   I'am currently trying to develop a small prototype where i tried using
libxml parser. and i'am now facing a couple of problems while parsing. I
think my understanding is not clear in those.

i'am basically trying to read a xml configuration file , parse it and then
use that data in my code.

my xml doc looks something like this (docname2)( i formatted it now):

  <?xml version="1.0" ?>
- <xmlbhas>
-    <protocolname>WAP1.2
-       <layer>WSP
-         <parameter>Version
-         <parameter>CapabilitiesLen
-         <parameter>Capabilities
-           <condition>

in my code i use something like this (some imp lines of the sample code):

xmlDocPtr doc2 = NULL;
xmlNodePtr cur1 = NULL;
xmlNodePtr tempnode1 = NULL;
xmlNodePtr tempnode2 = NULL;
xmlChar * nodevalue1;
xmlChar * nodevalue2;

doc2 = xmlParseFile(docname2);
cur2 = xmlDocGetRootElement(doc2);

cur2 = cur2->xmlChildrenNode->xmlChildrenNode;

tempnode1 = cur2->xmlChildrenNode;
nodevalue1 = xmlNodeListGetString(doc2, tempnode1->xmlChildrenNode, 1);
tempnode2 = tempnode1->xmlChildrenNode;
nodevalue2 = xmlNodeListGetString(doc2, tempnode2->xmlChildrenNode, 1);
and when i print the value of nodevalue2, i thought that i would get the
value "M"   (the text in the "required" element) but i get a segmentation
fault. I think tempnode2 became a null ptr.
can anyone explain this is to me. I followed the example in the example dir
in the libxml.

Also being new to unix and especially makefiles, i just changed the existing
makefile in the example dir for my program and teh ourput i get is a shell
script. But i would prefer it to be an executable binary. what all do i need
to change for this? it would be really great if someone can show that from
teh makefile of example dir.

Thanks and BR
Bhaskar Maddala

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