[Interest] strange character ' ' appended by QTextEdit

[baneyue]

Hi guys:

        I use a QTextEdit to edit the style string stored in a xml file like
        this: 
                
                <styles>
                        <style id="style_1">
                                Road {
                                        stroke: #c1c566;
                                        stroke-width: 2;
                                        ...
                                }
                        </style>
                        <style id="style_2">
                                River {
                                        stroke: #22aecc;
                                        stroke-width: 3;
                                        ...
                                }
                        </style>
                        ...
                </styles>

        I retrieved the style text with QDom and put it into a QTextEdit
        using explicitly __QTextEdit.setPlainText()__. Then I change the
        string in QTextEdit, and write back to the style file using the
        string got by __QTextEdit.toPlainText()__.

        But when i change the style string with `id="style_1"` and write
        back to file, all the RESTS style nodes in the xml get one or more
        `additional` characters at the end, which is the strange '&#xd;',
        just like this:
                
                <styles>
                        <style id="style_1">
                                Road {
                                        stroke: #c1c566;
                                        stroke-width: 2;
                                        ...
                                }
                        </style>
                        <style id="style_2">&#xd;
                                River {&#xd;
                                        stroke: #22aecc;&#xd;
                                        stroke-width: 3;&#xd;
                                        ...
                                }&#xd;
                        </style>
                        ...
                </styles>

        I've found some similiar situation on the stackoverflow[1], the
        answer marked with `Correct` suggested that the xml node should keep
        all characters in **one** line, but i really need to store it in a
        __stuctured__ way **WITHOUT** the `&#xd;`.

        So, what should I do to achieve this.

        [1]:
        
stackoverflow.com/questions/848841/c-sharp-xslt-transform-adding-xa-and-xd-to-the-output/849617#849617

        Regards,
                baneyue
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