Valid file name?

[Bipolar_Games]

I'm adding a custom save function instead of using Common Dialog. How can I check to make sure the file name the user has entered contains no special characters and can be used as a file name? (I'm using the Input Object to get the user to enter a file name)

[Jaffob]

According to Windows, the invalid characters are:

/\:*?"<>|

So the easiest way would probably be to use the Quick Token Object's "Remove Characters" expression. If you want to simply remove them you can use the expression alone. If you want to see if the special characters are present, you can see if the string with characters removed and the string are different.

And remember that you'll need another quote before the quote in the disallowed characters so MMF reads it as a string.