Draft regular expressions for detecting invalid Microsoft file names [Python]

msoft-invalid-filename-regex

#Based on: http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx
		
#regex strings...
	
#CON|PRN|AUX|NUL
msdn_bad_names_one = "(^)(con|prn|aux|nul)($|.|.[0-9a-zA-Z]{1,5}$)"		# badname + extension
		
#COM1-COM9 | LPT1-LPT9
msdn_bad_names_two = "((^)(COM|LPT)(.*[1-9]))($|(.[0-9a-zA-Z]{0,5}))"	# badname + extension
	
#<, >, :, ", /, \, ?, *, |, \x00-\x1f
non_recommended_chars = '(<|>|:|"|/|\\|\?|\*|\||\x00-\x1f)'

#[]
square_brackets = '(\[|\])'