Filename

What make a filename valid?

Valid filenames meet the criteria below:

• Must be a string
• Must be at least one character long
• Must be a maximum of 255 characters
• Must not be . or ..
• Must not be a reserved windows keyword ( 'con','prn','aux','nul','com1', 'com2', 'com3', 'com4', 'com5', 'com6', 'com7', 'com8', 'com9', 'com0', 'lpt1', 'lpt2', 'lpt3', 'lpt4', 'lpt5', 'lpt6', 'lpt7', 'lpt8', 'lpt9', 'lpt0')
• Must not start by a reserved windows keyword followed by '.'
• Must not contains special characters ('\', '/', ':', '*', '?', '"', '<', '>', '|')
• Must not contains invalid characters (ascii code < 32)

Example of valid filenames

• file.txt
• file
• con2
• con-txt
• a

Example of invalid filenames

• con
• con.txt
• con.2.txt
• aux
• .
• ..
• azertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbnazertyuiopqsdfghjklmwxcvbn
• >.txt