Separate QString by QRegex

stereomatching

[code]
QString contents = "lll-###";

QRegExp split("\b");

QStringList splitContents = contents.split(split, QString::SkipEmptyParts);
for(QString const &data : splitContents)
{
qDebug() << data;
}
[/code]

The result is "lll", "-###"
How could I told the QReg if I want the result become
"lll-", "###"

I want to make "#+"(I mean "#", "##", "###" and so on) as word boundary

example
"aaabbb%### ddd###" will be
"aaabbb%", "###", " ddd", "###"

Thanks

stereomatching

[QUOTE]1) work around it.[/QUOTE]
My pretty nasty work around

[code]
//helper function
std::list<std::pair<int, int> > get_positions(QRegExp const &rx, QString const &contents)
{
int pos = 0;
std::list<std::pair<int, int> > result;
while((pos = rx.indexIn(contents, pos)) != -1)
{
//qDebug() << pos2 << ", "<< rx.matchedLength();
result.push_back(std::make_pair(pos, rx.matchedLength()));
pos += rx.matchedLength();
}

return result;
}

//helper function
template<typename T>
QStringList const split_str_by_positions(T const &position, QString const &contents)
{
QStringList results;
for(std::pair<int, int> const &data : position)
{
results << contents.mid(data.first, data.second);
}

return results;

}

//split the contents into the QStringList
void test_get_positions()
{
QString contents = "lll ### ### ###";

typedef std::pair<int, int> DInt;
std::list<DInt> positions = get_positions(QRegExp("#+"), contents);

std::list<DInt> positions2 = get_positions(QRegExp("[^#]+"), contents);

struct DIntCompare
{
    bool operator()(DInt const &one, DInt const &two) const
    { return one.first < two.first; }
};

positions.merge(positions2, DIntCompare());

qDebug() << "---------------------";

for(DInt const &data : positions) qDebug() << data.first <<", "<<data.second;

QStringList results = split_str_by_positions(positions, contents);

for(QString const &data : results) qDebug() << data;

}
[/code]

Do you have other easier solutions?
My workaround is ugly, want to find other better way to implement it.
Thanks

Mario84

you could just call contents.split("###"), but you won't get "###" in your resulting list.
(Which shouldn't be a big deal, just add them again afterwards if you need them...)
Try something like that:

[code]
QString contents = "lll-###";

QString split("###");

QStringList splitContents = contents.split(split, QString::SkipEmptyParts);

for (int i = splitContents.count(); i >= 0; i--)
{
splitContents.insert(i+1, split);
}

for(QString const &data : splitContents)
{
qDebug() << data;
}
[/code]

if this solution isn't flexible enough for your purposes, you'll probably have to write your own parser...

Jeroentjehome

Not really sure what you want to achieve, but maybe use the "\b-" as QRegExp? When I test it, it gives me two strings in the splitContents. "lll" and "###". I lost the "-" ofcourse of the QString.split function.
The correct Qt way for the for () is more:
@ QString contents = "lll-###";

 QRegExp split("\\b-");

 QStringList splitContents = contents.split(split, QString::SkipEmptyParts);
 foreach (QString const &data , splitContents)
 {
     qDebug() << data;
 }

@

stereomatching

bq. Not really sure what you want to achieve

I want to implement the rename function like the "XnView" did

example : aaa_###$##$#
will produce strings like
"aaa_000$00$0"
"aaa_001$01$1" and so on
it would only replace "#" to integer

The most easiest solution of mine is
(1)split the string into
aaa_,###, $,##, $, #

(2)concatenate those string and replace "#" to number