How can i convert entity character(Escape character) to HTML in QT? - c++

Question

I want to convert entity character(Escape character) to HTML in QT, please help me....
i.e: I want to replace " with ", > with >
=====This is my code that not worked====
QString MyApp::ReplaceString(const QString Data, const QString &Before, const QString &After)
{
QString Result = Data;
Result.replace(Before, After, Qt::CaseInsensitive);
return Result;
}
========
QTextCodec *codec = QTextCodec::codecForName("UTF-8");
QByteArray data=pReply->readAll();
QString str = codec->toUnicode((const char *)data);
str = Qt::escape(str);
str = ReplaceString(str, """, "\"");
str = ReplaceString(str,">", ">");

Answer 1

I'm not sure I understand what you want, just guessing. You can use QTextDocument. Try something like this:
QTextDocument text;
text.setHtml("<>"");
QString plain = text.toPlainText();
qDebug("%s.", qPrintable(plain));
Remember that QTextDocument needs the gui module.

Answer 2

I think this will solve your problem.
QString escaped=
QString(myhtml).replace("&","&").replace(">",">").replace("<","<");

Answer 3

Test escape() function:
QString plain = "#include <QtCore>"
QString html = Qt::escape(plain);
// html == "#include <QtCore>"
and convertFromPlainText() function:
QString Qt::convertFromPlainText ( const QString & plain, WhiteSpaceMode mode = WhiteSpacePre )

Answer 4

Hello to convert non ASCII character to &#XXX; (where XXX is a number):
/***************************************************************************//*!
* #brief Encode all non ASCII characters into &#...;
* #param[in] src Text to analyze
* #param[in,opt] force Force the characters "list" to be converted.
* #return ASCII text compatible.
*
* #note Original code: http://www.qtforum.org/article/3891/text-encoding.html
*
* #warning Do not forget to use QString::fromUtf8()
*/
QString encodeEntities( const QString& src, const QString& force=QString() )
{
QString tmp(src);
uint len = tmp.length();
uint i = 0;
while( i<len )
{
if( tmp[i].unicode() > 128 || force.contains(tmp[i]) ){
QString rp = "&#"+QString::number(tmp[i].unicode())+";";
tmp.replace(i,1,rp);
len += rp.length()-1;
i += rp.length();
}else{
++i;
}
}
return tmp;
}
/***************************************************************************//*!
* #brief Allows decode &#...; into UNICODE (utf8) character.
* #param[in] src Text to analyze
* #return UNICODE (utf8) text.
*
* #note Do not forget to include QRegExp
*/
QString decodeEntities( const QString& src )
{
QString ret(src);
QRegExp re("&#([0-9]+);");
re.setMinimal(true);
int pos = 0;
while( (pos = re.indexIn(src, pos)) != -1 )
{
ret = ret.replace(re.cap(0), QChar(re.cap(1).toInt(0,10)));
pos += re.matchedLength();
}
return ret;
}
Basic usage:
qDebug() << encodeEntities(QString::fromUtf8("éà#<>hello the world €"),QString("<>"));
// Will print: éà#<>hello the world €
qDebug() << decodeEntities("aßéplopéàçê€");
// Will print: hello world