_L                 22 include/linux/ctype.h #define isalnum(c)	((__ismask(c)&(_U|_L|_D)) != 0)
_L                 23 include/linux/ctype.h #define isalpha(c)	((__ismask(c)&(_U|_L)) != 0)
_L                 26 include/linux/ctype.h #define isgraph(c)	((__ismask(c)&(_P|_U|_L|_D)) != 0)
_L                 27 include/linux/ctype.h #define islower(c)	((__ismask(c)&(_L)) != 0)
_L                 28 include/linux/ctype.h #define isprint(c)	((__ismask(c)&(_P|_U|_L|_D|_SP)) != 0)