def METHOD_NAME(s):
	'''certain trac installation reported problems with special chars
	other trac systems loaded all files without problem
	the problem is only for file names and wiki pages names, not for content
	'''
	return s.replace('á', 'a').replace('é', 'e').replace('í', 'i').replace('ó', 'o').replace('ú', 'u').replace('ñ', 'n').replace('Á', 'A').replace('É', 'E').replace('Í', 'I').replace('Ó', 'O').replace('Ú', 'U').replace('Ñ', 'ñ')