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PORead different QStrings with the same previous and the same following word? QString::indexOf
 

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  1. PORead different QStrings with the same previous and the same following word? QString::indexOf
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    <p>I read two QStrings (ValueOne,ValueTwo) out of a file with (just a basic example)</p> <pre><code>int main(int argc, char *argv[]) { QString x = ("yes " "start ValueOne end" "no" "start ValueTwo end"); //try to read ValueOne QString s = "start"; QString e = "end"; int start = x.indexOf(s, 0, Qt::CaseInsensitive); int end = x.indexOf(e, Qt::CaseInsensitive); if(start != -1){ QString y = x.mid(start + s.length(), (end - (start + s.length()))); qDebug() &lt;&lt; y &lt;&lt; (start + s.length()) &lt;&lt; (end - (start + s.length())); //try to read ValueTwo QString s2 = "start"; QString e2 = "end"; int start2 = x.indexOf(s2, 0, Qt::CaseInsensitive); int end2 = x.indexOf(e2, Qt::CaseInsensitive); if(start2 != -1){ QString y2 = x.mid(start2 + s.length2(), (end2 - (start2 + s.length2()))); qDebug() &lt;&lt; y2 &lt;&lt; (start2 + s.length2()) &lt;&lt; (end2 - (start2 + s.length2())); } } </code></pre> <p>As you see the source code can't difference between ValueOne and ValueTwo just by "start" and "end", because both QString::mid() methods (which proceed line by line as far as I know) have the same start position and the same length (see <a href="http://qt-project.org/doc/qt-4.8/qstring.html#mid" rel="nofollow">http://qt-project.org/doc/qt-4.8/qstring.html#mid</a> ). Therefore I thought if the whole string was one line like</p> <pre><code>QString x = "yes start ValueOne end no start ValueTwo end "; </code></pre> <p>I could difference between the two values with QString s = "yes start" and QString s2 = "no start". So would convert the multiline String into a one line String be a solution and how can I do this? or Is there another maybe better solution? greetings</p>
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    1. USStreight
    1. USStreight
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    1. COI have no idea what problem you're trying to solve, but if you just want to remove the newline characters from a string x, is it not just "x = x.remove('\n');"? That's literally the very definition of a method on QString, which you really ought to be able to come up with.
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      1. PORead different QStrings with the same previous and the same following word? QString::indexOf
      1. USdeong
    2. COI have no idea what result you want - can you spell that out? And as an aside, you can't concatenate literal strings with the `+` operator.
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      1. PORead different QStrings with the same previous and the same following word? QString::indexOf
      1. USMichael Burr
    3. CO@deong: no, I don't want to remove anything. QMichaelBurr: The result I want is QString y = ValueOne and QString y2 = ValueTwo. I edited my question. hope now it is easier to understand.
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      1. USStreight
 

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