XmlHelper.h

#ifndef XMLHELPER_H
#define XMLHELPER_H

#include <QDomDocument>
#include "cppXML_global.h"
#include "libxml/xmlerror.h"

///Helper class for XML handling.
class CPPXMLSHARED_EXPORT XmlHelper
{
public:
    ///Returns an empty string if the xml file is well-formed, or the error message otherwise.
    static QString isValidXml(QString xml_file);

    ///Returns an empty string if the xml file validates against the schema, or the error message otherwise. Throws an Exception if the schema/xml file are not ok.
    static QString isValidXml(QString xml_file, QString schema_file);

	///Format XML to make it human-readable
	static QString format(QString xml);

    ///Load contents of XML file into DOM datastructure
    static QDomDocument load(QString xml_file);

    ///Parse XML string into DOM datastructure
    static QDomDocument parse(QByteArray xml_string);

private:
    //declared away
    XmlHelper() = delete;

    //error handler
    static QList<QPair<int, QString>> errors;

#if LIBXML_VERSION >= 21000
	static void schemaErrorHandler(void*, const xmlError* error);
	static void parseErrorHandler(void *userData, const xmlError* error);
#else
	static void schemaErrorHandler(void*, xmlError* error);
	static void parseErrorHandler(void *userData, xmlError* error);
#endif
};


#endif