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Thread: Remove \n from QString

  1. #1

    Default Remove \n from QString

    Hi

    I have a string with 3 lines.

    "ABC"
    "ABC"
    "ABC"

    I want to remove second line.
    I can remove all characters in the line but still the line there is.

    "ABC"
    ""
    "ABC"

    I know in second line there is "\n"

    I tried to use remove("\n") but It does not work.

    So I need help with the problem.

    Regards
    Artur

  2. #2
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    Default Re: Remove \n from QString

    I would use QString::split("\n") to created a QStringList of all of the lines. Then you can keep/omit any specific line number or based on QString contents, etc.

  3. #3
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    Default Re: Remove \n from QString

    You can remove the blank line by replacing a sequence of two newlines with one newline, see QString::replace().
    You could have a look at QString::section() also.

  4. #4

    Default Re: Remove \n from QString

    Hi

    Thank you for help.

    Today I found Why I have a lot of problems with my QString
    for example: The QStringList was not created well qDebug show only piece of QString.

    so The problem is that in one line of QString there is NULL char ( \0).
    but It is very hard to remove it How to remove it (I tried remve method but without success)

    Regards
    Artur

  5. #5
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    Default Re: Remove \n from QString

    Does
    Qt Code:
    1. QString result = value.remove(QChar('\0'));
    2. //or
    3. QString result = value.remove(QChar(QChar::Null));
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    Work?

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