Format XML file

I have a xml file where outputs are not getting formatted . That means all the outputs are in a single line but i want to break it tag by tag .

For e.g. -

Code:

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<?xml version="1.0" encoding="UTF-8" standalone="no" ?><Analyser>   <JointDetails>              <Details><StdThickness> T </StdThickness><Thickness_num> 0.032 </Thickness_num></Details>   </JointDetails></Analyser>

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But i want to do it like this ::

Code:

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<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
    <Analyser>  
     <JointDetails>
       <Details>
    <StdThickness> T </StdThickness>
    <Thickness_num> 0.032 </Thickness_num>
    </Details> 
      </JointDetails>
    </Analyser>

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Please dont suggest to do it while writting the XML file because this xml file is already there but now i have to format it as mentioned above .

Thanks in advance .

Code:

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#include <QCoreApplication>
#include <QDebug>
#include <QXmlStreamWriter>
#include <QFile>
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    QFile file("demo.xml");
    file.open(QIODevice::WriteOnly);
    QXmlStreamWriter stream(&file);
    stream.setAutoFormatting(true);
    stream.writeStartDocument();
    stream.writeStartElement("Analyser");
    stream.writeStartElement("JointDetails");
    stream.writeStartElement("Details");
    stream.writeTextElement("StdThickness","T");
    stream.writeTextElement("Thickness_num","0.032");
    stream.writeEndElement();
    stream.writeEndElement();
    stream.writeEndElement();
    stream.writeEndDocument();
    file.close();
    return a.exec();
}

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I don't want to write a XML file . The XML file is already there , just i need to format it since its in a single line . I want to break it into tag by tag .

Code:

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void format(void)
{
    QDomDocument input;
 
    QFile inFile("D:/input.xml");
    QFile outFile("D:/output.xml");
 
    inFile.open(inFile.Text | inFile.ReadOnly);
    outFile.open(outFile.Text | outFile.WriteOnly);
 
    input.setContent(&inFile);
 
    QDomDocument output(input);
    QTextStream stream(&outFile);
    output.save(stream, 2);
}

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Quote:

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Originally Posted by vikuseth

I don't want to write a XML file . The XML file is already there , just i need to format it since its in a single line . I want to break it into tag by tag .

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Sure you do. You cannot transform xml A into xml B without writing xml B somwhere. If you don't want to save the result in a permanent file then save it to a QBuffer or QByteArray using QXmlStreamReader/QXmlStreamWriter or DomDocument. The DomDocument option requires the QtXml module but is less effort.

Quote:

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Originally Posted by Santosh Reddy

Code:

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void format(void)
{
    QDomDocument input;
 
    QFile inFile("D:/input.xml");
    QFile outFile("D:/output.xml");
 
    inFile.open(inFile.Text | inFile.ReadOnly);
    outFile.open(outFile.Text | outFile.WriteOnly);
 
    input.setContent(&inFile);
 
    QDomDocument output(input);
    QTextStream stream(&outFile);
    output.save(stream, 2);
}

---

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What i have to do if i have to save the contents inside the same file . like in the above case for D:/input.xml .

Write the output to a temporary file and, when that is successfully closed rename it to replace the original.
Or, write the result to a buffer in memory and when that is complete write the buffer to the file.