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Removing RTF control characteres from field

  • July 5, 2021
  • 4 replies
  • 1 view
Marcelo Martins

First of all, I´m happy to working with Uniface again, after almost two years.


Dear all,

I have an entity that has a field defined as C* (in Oracle CLOB), and RICHEDITBOX as widget. Now, this field should be access from outside Uniface. How can I create another field without RTF controls that are stored when RICHEDITBOX is used widget? Any idea is welcome.

Uniface 9.7.04 + Oracle.

Thank you in advance,

Marcelo Martins

    4 replies

    Iain Sharp
    Forum|alt.badge.img+5
    • Iain Sharp
    • Inspiring
    • July 5, 2021

    First of all, I´m happy to working with Uniface again, after almost two years.


    Dear all,

    I have an entity that has a field defined as C* (in Oracle CLOB), and RICHEDITBOX as widget. Now, this field should be access from outside Uniface. How can I create another field without RTF controls that are stored when RICHEDITBOX is used widget? Any idea is welcome.

    Uniface 9.7.04 + Oracle.

    Thank you in advance,

    Marcelo Martins

    Well, we mostly make text rtf rather than the other way around, but the rtf characters are all (pretty much) straight ascii character sequences, so a series of $replace statements should remove the ones people use.

    Iain Sharp : Head of Technical Services, Jonas Metals Software
    Gianni Sandigliano
    Forum|alt.badge.img

    First of all, I´m happy to working with Uniface again, after almost two years.


    Dear all,

    I have an entity that has a field defined as C* (in Oracle CLOB), and RICHEDITBOX as widget. Now, this field should be access from outside Uniface. How can I create another field without RTF controls that are stored when RICHEDITBOX is used widget? Any idea is welcome.

    Uniface 9.7.04 + Oracle.

    Thank you in advance,

    Marcelo Martins

    Hi Marcelo,

    there is a UNRTF utility in the gnu world to convert RTF file/stream to other formats, including pure text. It is available in the standard Linux repo. I suggest to search for its implementations to incapsulate its work in a Uniface components.

    Hope it helps.

    Gianni

    PillarOfWisdom1: Inject yourself with some fantasy to NOT die of realityPillarOfWisdom2: The secret for a long healthy life is: eat half, walk double, laugh three times and love without measure! (Chinese saying)PillarOfWisdom3: Barcollo ma non mollo!
    D
    • DanielIseliRocketeer
    • Rocketeer
    • July 6, 2021

    First of all, I´m happy to working with Uniface again, after almost two years.


    Dear all,

    I have an entity that has a field defined as C* (in Oracle CLOB), and RICHEDITBOX as widget. Now, this field should be access from outside Uniface. How can I create another field without RTF controls that are stored when RICHEDITBOX is used widget? Any idea is welcome.

    Uniface 9.7.04 + Oracle.

    Thank you in advance,

    Marcelo Martins

    You also could use the HTML widget, and do the RTF conversion using JavaScript and Regular Expressions. You should be able to find numerous samples on the Internet.

    I've once made a sample that looked like this:

    The following blockdata is assigned to a field that uses the HTML widget:

    html1:blockdata ~

    <!DOCTYPE html>
    <html>
    <body>

    <p id="plainText"></p>

    <script>
    function convertToPlain(rtf) {
    rtf = rtf.replace(/\\\\par[d]?/g, "");
    rtf = rtf.replace(/\\{\\*?\\\\[^{}]+}|[{}]|\\\\\\n?[A-Za-z]+\\n?(?:-?\\d+)?[ ]?/g, "").trim();
    rtf = rtf.replace(/\\n/g, "<br/>")
    window.unifaceTriggers('getPlainText', rtf);
    }
    </script>

    </body>
    </html>~

    You then pass the RTF-text to the HTML widget like this:

    $fieldhandle(HTML1)->$widgetoperation("JS:convertToPlain", RTF1)

    And from the JavaScript function the extended trigger getPlainText is called that is defined for the HTML widget field: 

    trigger getPlainText
params
    string plainTXT : IN
endparams

TXT1.DUM = $replace(plainTXT, 1, "<br/>", "%%^", -1)

end;- getPlainText trigger

    My test form contains three fields:

    • RTF1.DUMMY: Rich Edit Box widget with RTF-text
    • HTML1.DUMMY: HTML widget (can be hidden)
    • TXT1.DUM: normal Edit Box that will show the extracted text.

    This should also work with Uniface 9.7.04. And the advantage of this approach is that you don't need any external dependencies.

    I hope this helps.

    Kind reagrds,
    Daniel

    Marcelo Martins

    First of all, I´m happy to working with Uniface again, after almost two years.


    Dear all,

    I have an entity that has a field defined as C* (in Oracle CLOB), and RICHEDITBOX as widget. Now, this field should be access from outside Uniface. How can I create another field without RTF controls that are stored when RICHEDITBOX is used widget? Any idea is welcome.

    Uniface 9.7.04 + Oracle.

    Thank you in advance,

    Marcelo Martins

    Thank you,  guys. You help me a lot. I´ll play with your suggestions.. 

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