How to make an NSString path (file name) safe

Question

I\'m using very tricky fighting methods :) to make a string like Fi?le*/ Name safe for using as a file name like File_Name. I\'m sure there is a cocoa

Answer 1

According to wikipedia, the most common characters that should be excluded from filenames are:

/\?%*|"<>

http://en.wikipedia.org/wiki/Filename

Given that, and since the invertedSet operation in the alternate solution can be intensive, to me the below is a cleaner approach:

NSCharacterSet *invalidFsChars = [NSCharacterSet characterSetWithCharactersInString:@"/\\?%*|\"<>"];
NSString *scrubbed = [originalStr stringByTrimmingCharactersInSet:invalidFsChars];

This way you can still allow filenames that have dash, etc.