mbc_len          4511 regex.c        #define euc_mbclen(c)  mbc_len(mbctab_euc, (c))
mbc_len          4531 regex.c        #define sjis_mbclen(c)  mbc_len(mbctab_sjis, (c))
mbc_len          4555 regex.c        #define utf8_mbclen(c)  mbc_len(mbctab_utf8, (c))