Xml c libxml class library usage

XML

Reference address:
Http://jianlee.ylinux.org/Computer/C/libxml.html

Instance:

 /*  
* ===================================================== ========================================================== ======
*
* Filename: XML. c
*
* Description:
*
* Version: 1.0
* Created: 07/07/2011 11:47:54 AM
* Revision: None
* Compiler: gcc
*
* Author: kangle. Wang (Mn), wangkangluo1@gmail.com
* Company: APE-TECH
*
* ===================================================== ========================================================== ======
  */  

# Include  < Stdio. h  >  
# Include  <  Stdlib. h  >  
# Include  <  Libxml  /  Parser. h  >  
# Include  <  Libxml  /  Tree. h >  

  Int  Main (  Int  Argc,  Char     **  Argv)
{
Xmldocptr pdoc  =  NULL;
Xmlnodeptr proot_node  =  Null, pnode  =  Null, pnode1 =  NULL;

  //  Create a new document and set the root node
  //  An XML file has only one root node.  
  Pdoc  =  Xmlnewdoc (bad_cast  "  1.0  "  );
Proot_node  =  Xmlnewnode (null, bad_cast "  Root Node  "  );
Xmlnewprop (proot_node, bad_cast  "  Version  "  , Bad_cast  "  1.0  "  );
Xmldocsetrootelement (pdoc, proot_node );

Pnode  =  Xmlnewnode (null, bad_cast  "  Subnode 1 "  );
  //  Create the child node of the above pnode  
  Xmlnewchild (pnode, null, bad_cast  "  Subnode 1  "  , Bad_cast  "  Information  "  );
  //  Add a subnode to the root node  
 Xmladdchild (proot_node, pnode );

Pnode1  =  Xmlnewnode (null, bad_cast  "  Subnode 1  "  );
Xmladdchild (pnode, pnode1 );
Xmladdchild (pnode1, xmlnewtext (bad_cast  "  This is a lower node, subnode 1  "  ));

  //  You can also directly create a subnode to the root node.  
 Xmlnewtextchild (proot_node, null, bad_cast  "  Subnode 2  "  , Bad_cast  "  Contents of subnode 2  "  );
Xmlnewtextchild (proot_node, null, bad_cast  "  Subnode 3  "  , Bad_cast  "  Contents of subnode 3  " );

  //  Save XML as a file. If no file name parameter is provided, it is output to the standard output.  
  Xmlsaveformatfileenc (argc  >     1     ?  Argv [  1  ]:  "  -  "  , Pdoc, "  UTF-8  "  ,  1  );

  //  Release resources  
  Xmlfreedoc (pdoc );
Xmlcleanupparser ();
Xmlmemorydump ();
  Return     0  ;
} 

Compile: gcc-g-wall-O0 XML. C-o XML-I/usr/include/libxml2-lxml2

Run:./XML test. xml

Result:

 <?  XML version = "1.0" encoding = "UTF-8"  ?>  
  <  Root Node version = "1.0  "  >  
  <  Subnode 1  >  
  <  Subnode 1  >  Information </  Subnode 1  >  
  <  Subnode 1  >  This is a lower node, subnode 1  </  Subnode 1  >  
  </  Subnode 1  >  
  < Subnode 2  >  Contents of subnode 2  </  Subnode 2  >  
  <  Subnode 3  >  Contents of subnode 3  </  Subnode 3  >  
  </  Root Node >