remove specific line using readLine()

[jasif]

Hi to all.

I want to find a specific string between lines to remove it, I'm usign readLine() to read a text with TextStream.
for example:

QTextStream text(&file);
while(!text.atEnd()){
  vectorData[ii] = text.readLine();
  ...
  ii++;
}

QTextStream text(&file);
while(!text.atEnd()){
  vectorData[ii] = text.readLine();
  ...
  ii++;
}

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the read is something like:

Banana
Kiwi
Apple
Banana
Banana
Apple
Mango
Apple
Mango

so, I want to remove the Apple line just after the Banana line.

Banana
Kiwi
Apple
Banana
Banana
Apple <--- This one
Mango
Apple
Mango

First I need to locate the specific line, I tried:

if(vectorData[ii].contains("Banana\0Apple")) // Do something

if(vectorData[ii].contains("Banana\0Apple")) // Do something

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but didn't work.

"Banana\nApple"

"Banana\nApple"

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and

"Banana\n\rApple"

"Banana\n\rApple"

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neither. I can't use readAll() because the rest of the code breaks down. Must be taken into account every time I read the text, all the lines are in different position (the textfile is randomly modified). Thanks, I'm super newbie.