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Reference Guide
DOMRecursive.C File Reference

Detailed Description

View in nbviewer Open in SWAN ROOT implementation of a XML DOM Parser

This is an example of how Dom Parser walks the DOM tree recursively. This example will parse any xml file.

To run this program

.x DOMRecursive.C+

Requires: person.xml

This is an example...
Person: ID:1
FirstName: Alicia
LastName: Smith
Gender: F
Day: 13
Month: 10
Year: 1978
Street: Grand Avenue, 143
PostalCode: Toronto 2283
Country: Canada
Person: ID:2
FirstName: Maria
LastName: White
Gender: F
Day: 29
Month: 5
Year: 1980
Street: Green Land Park, 143
PostalCode: Vancouver BC V6C 2C2
Country: Canada
#include <Riostream.h>
#include <TDOMParser.h>
#include <TXMLNode.h>
#include <TXMLAttr.h>
#include <TList.h>
void ParseContext(TXMLNode *node)
for ( ; node; node = node->GetNextNode()) {
if (node->GetNodeType() == TXMLNode::kXMLElementNode) { // Element Node
cout << node->GetNodeName() << ": ";
if (node->HasAttributes()) {
TList* attrList = node->GetAttributes();
TIter next(attrList);
TXMLAttr *attr;
while ((attr =(TXMLAttr*)next())) {
cout << attr->GetName() << ":" << attr->GetValue();
if (node->GetNodeType() == TXMLNode::kXMLTextNode) { // Text node
cout << node->GetContent();
if (node->GetNodeType() == TXMLNode::kXMLCommentNode) { //Comment node
cout << "Comment: " << node->GetContent();
void DOMRecursive()
TDOMParser *domParser = new TDOMParser();
TString dir = gROOT->GetTutorialDir();
domParser->SetValidate(false); // do not validate with DTD
TXMLNode *node = domParser->GetXMLDocument()->GetRootNode();
#define gROOT
Definition: TROOT.h:406
virtual TXMLDocument * GetXMLDocument() const
Returns the TXMLDocument.
Definition: TDOMParser.cxx:144
virtual Int_t ParseFile(const char *filename)
Parse the XML file where filename is the XML file name.
Definition: TDOMParser.cxx:70
A doubly linked list.
Definition: TList.h:44
Basic string class.
Definition: TString.h:136
TXMLAttribute is the attribute of an Element.
Definition: TXMLAttr.h:18
const char * GetValue() const
Definition: TXMLAttr.h:33
const char * GetName() const
Returns name of object.
Definition: TXMLAttr.h:31
TXMLNode * GetRootNode() const
Returns the root element node.
TXMLNode contains a pointer to xmlNode, which is a node under the DOM tree.
Definition: TXMLNode.h:20
TList * GetAttributes()
Returns a list of node's attribute if any, returns 0 if no attribute.
Definition: TXMLNode.cxx:108
const char * GetContent() const
Returns the content if any, or 0.
Definition: TXMLNode.cxx:97
@ kXMLElementNode
Definition: TXMLNode.h:37
@ kXMLCommentNode
Definition: TXMLNode.h:40
@ kXMLTextNode
Definition: TXMLNode.h:39
TXMLNode * GetNextNode()
Returns the next sibling XMLNode in the DOM tree, if any return 0 if no next node.
Definition: TXMLNode.cxx:130
TXMLNode * GetChildren()
Returns the node's child if any, returns 0 if no child.
Definition: TXMLNode.cxx:74
const char * GetNodeName() const
Returns the node's name.
Definition: TXMLNode.cxx:66
Bool_t HasAttributes() const
Returns true if Element node has attribute.
Definition: TXMLNode.cxx:198
EXMLElementType GetNodeType() const
Returns the node's type.
Definition: TXMLNode.cxx:58
void SetValidate(Bool_t val=kTRUE)
The parser will validate the xml file if val = true.
Definition: TXMLParser.cxx:76
Sergey Linev

Definition in file DOMRecursive.C.