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Reference Guide
xmlmodifyfile.C
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1/// \file
2/// \ingroup tutorial_xml
3///
4/// Example to read, modify and store xml file, using TXMLEngine class
5/// The input file, produced by xmlnewfile.C macro is used
6/// If you need full xml syntax support, use TXMLParser instead
7///
8/// \macro_code
9///
10/// \author Sergey Linev
11
12#include "TXMLEngine.h"
13
14// scan node and returns number of childs
15// for each child create info node with name and number of childs
16int ScanNode(TXMLEngine &xml, XMLNodePointer_t node)
17{
18 int cnt = 0;
20 while (child) {
21 cnt++;
22
23 int numsub = ScanNode(xml, child);
24
25 // create new <info> node
26 XMLNodePointer_t info = xml.NewChild(node, xml.GetNS(child), "info");
27
28 // set name and num attributes of info node
29 xml.NewAttr(info, 0, "name", xml.GetNodeName(child));
30 if (numsub > 0) xml.NewIntAttr(info, "num", numsub);
31
32 // move it after current node
33 xml.AddChildAfter(node, info, child);
34
35 // set pointer to new node
36 child = info;
37
38 xml.ShiftToNext(child);
39 }
40 return cnt;
41}
42
43void xmlmodifyfile(const char* filename = "example.xml")
44{
45 // First create engine
46 TXMLEngine xml;
47
48 // Now try to parse xml file
50 if (xmldoc) {
51 // recursively scan all nodes, insert new when required
52 ScanNode(xml, xml.DocGetRootElement(xmldoc));
53
54 // Save document to file
55 xml.SaveDoc(xmldoc, "modify.xml");
56
57 // Release memory before exit
58 xml.FreeDoc(xmldoc);
59 }
60}
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t Int_t Int_t Window_t TString Int_t GCValues_t GetPrimarySelectionOwner GetDisplay GetScreen GetColormap GetNativeEvent const char const char dpyName wid window const char font_name cursor keysym reg const char only_if_exist regb h Point_t winding char text const char depth char const char Int_t count const char ColorStruct_t color const char filename
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t Float_t Float_t Int_t Int_t UInt_t UInt_t Rectangle_t Int_t Int_t Window_t child
void * XMLNodePointer_t
Definition: TXMLEngine.h:17
void * XMLDocPointer_t
Definition: TXMLEngine.h:20
XMLNodePointer_t NewChild(XMLNodePointer_t parent, XMLNsPointer_t ns, const char *name, const char *content=nullptr)
create new child element for parent node
Definition: TXMLEngine.cxx:715
XMLNodePointer_t GetChild(XMLNodePointer_t xmlnode, Bool_t realnode=kTRUE)
returns first child of xmlnode
XMLAttrPointer_t NewAttr(XMLNodePointer_t xmlnode, XMLNsPointer_t, const char *name, const char *value)
creates new attribute for xmlnode, namespaces are not supported for attributes
Definition: TXMLEngine.cxx:586
void SaveDoc(XMLDocPointer_t xmldoc, const char *filename, Int_t layout=1)
store document content to file if layout<=0, no any spaces or newlines will be placed between xmlnode...
void FreeDoc(XMLDocPointer_t xmldoc)
frees allocated document data and deletes document itself
XMLNodePointer_t DocGetRootElement(XMLDocPointer_t xmldoc)
returns root node of document
XMLAttrPointer_t NewIntAttr(XMLNodePointer_t xmlnode, const char *name, Int_t value)
create node attribute with integer value
Definition: TXMLEngine.cxx:612
XMLNsPointer_t GetNS(XMLNodePointer_t xmlnode)
return namespace attribute (if exists)
Definition: TXMLEngine.cxx:766
const char * GetNodeName(XMLNodePointer_t xmlnode)
returns name of xmlnode
void AddChildAfter(XMLNodePointer_t parent, XMLNodePointer_t child, XMLNodePointer_t afternode)
Insert new child node after already existing node.
Definition: TXMLEngine.cxx:846
XMLDocPointer_t ParseFile(const char *filename, Int_t maxbuf=100000)
Parses content of file and tries to produce xml structures.
void ShiftToNext(XMLNodePointer_t &xmlnode, Bool_t realnode=kTRUE)
shifts specified node to next if realnode==kTRUE, any special nodes in between will be skipped
const char * cnt
Definition: TXMLSetup.cxx:75