Determine Invalid Characters in File Name and Path

Submitted by Sergey on January 2, 2008 - 00:07 UTC
topic: 
code
vfp
folder
directory
windows
foxpro
file

This is sample code. Add error handling and adjust to your requirements as necessary.





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* Returns the list of characters that are not allowed in the file names
FUNCTION GetInvalidFileNameChars()
LOCAL lcInvalidFileNameChars, lnAsc
lcInvalidFileNameChars = [*/:<>?|\] + CHR(34)
FOR lnAsc=0 TO 31
	lcInvalidFileNameChars = lcInvalidFileNameChars + CHR(lnAsc)
ENDFOR
RETURN lcInvalidFileNameChars


* Returns the list of characters that are not allowed in the path names
FUNCTION GetInvalidPathChars()
LOCAL lcInvalidPathChars, lnAsc
lcInvalidPathChars = [*:<>?|] + CHR(34)
FOR lnAsc=0 TO 31
	lcInvalidPathChars = lcInvalidPathChars + CHR(lnAsc)
ENDFOR
RETURN lcInvalidPathChars

Comments

Submitted by @bii on October 15, 2015 - 22:30 UTC
The less-than and greater-than symbols (CHR(60) and CHR(62)) are also considered invalid for both file and path names.