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how to check if a file contains alphanumeric characters

I work with appscript in SBM 12.1

I must check, in appscript, in a field contains only alphanumeric characters and I didn't find a funtion. Some wrote a funtion to do that?

Thanks for your help.

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    Does that mean the file is ASCII or UTF-8 or UTF-8 with Byte Order Mark (BOM)??

    Does the file contain any TAB characters or CR/LF sequences? 

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    I think they are trying to check the value of a text field, rather than a file.... Christine, there are not any built-in SBM AppScript functions for this type of check. However, AppScript is based on VBScript 4.0. So, I would suggest googling for an vmscript function that does this check. I would guess that you could find some good example out there.

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  • Suggested Answer

    0   in reply to 

    I think they are trying to check the value of a text field, rather than a file.... Christine, there are not any built-in SBM AppScript functions for this type of check. However, AppScript is based on VBScript 4.0. So, I would suggest googling for an vmscript function that does this check. I would guess that you could find some good example out there.

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    Arg!  Mis-read "Field" as "File".  Rented brain.

    Christine: Is this on a Transition form?  It would be relatively easy with JavaScript to strip any character in a Text field that isn't in the range of decimal 32 (0x20; ASCII SPACE character " ") to decimal 126 (0x7E; ASCII TILDE "~").

    The JavaScript could also confirm that a Text field only contains Alphanumeric chars without modifying the field.  What do you want to do with the result of that evaluation?