CWRITE krl_fwriteln New line

    Hi There! Does anyone have a manual for KSS 8.5 similar to: KSS_82_83_CREAD_CWRITE_en.pdf ??

    KSS 8.5.7 HF1

    It seems that the:

    Code
    CWRITE($FCT_CALL,STAT,MODE,"krl_fwriteln", HANDLE, logText[])


    command does not produce a new line..

    eg:

    Code
    CWRITE($FCT_CALL,STAT,MODE,"krl_fwriteln", HANDLE, "hello"
CWRITE($FCT_CALL,STAT,MODE,"krl_fwriteln", HANDLE, "world"


    will output the file in C:\KRC\ROBOTER\UserFiles\test.csv: helloworld

    From the KSS 8.3 manual for krl_fwriteln: "An end-of-line character is appended to the character string to be written."

    Thanks in advance!

    Hm... the manual says that KRL_FWRITELN "appends an end of line character" to the string being written. That's not terribly specific about what, exactly, the end-of-line character is.

    I wonder... in Windows, usually the standard "end of line character" is two characters -- the Carriage Return and the Line Feed. But Unix systems use just the Line Feed. And there are a few other ASCII unprintable characters that can be used in similar context.

    I would suggest opening the text file in an editor like NotePad++ and turning on the View>Show Sumbols>Show All Characters option. It's possible that the KRL_FWRITELN is doing what it's supposed to, but the EOL character it's appending isn't showing up as you might expect. Making all the unprintable ASCII characters visible in NP++ would allow you to see any hidden characters that might be present.

    For myself, I write a lot of KRL data-logging code, but I never used KRL_FWRITELN -- not entirely sure why, but instead I always used KRL_FPUTS, and explicitly appended the CR and LF to the end of each line. If KRL_WRITELN won't do what you want, that approach might be an option.

    Ah Ha! :applaus:
    I was opening it using the standard windows notepad that comes with OfficeLite (Win7).

    Opening with Notepad++ shows that krl_fwriteln only adds the unprintable "LF".
    If I open with standard notepad and add text on a new line, it adds "CR""LF'.

    Thanks for the tip to use krl_fputs! + view all characters in np++. That is very good to know..
    No 8.5 version on Xpert yet, but the 8.3 will be perfect for now. Thanks for all the help! :beerchug:

    That actually makes sense -- while the user-facing displays on a KRC run in Windows, all of the actual controls of the robot run in VxWorks, which is a Unix/Linux derivative. And the KRL_F**** functions are essentially KRL hooks into the VxWorks OS-level "fprintf" commands. So KRL_FWRITELN using Unix-style line terminations is natural.

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