T_DIG
#define digit(c) ((c<QUOTE) && _ctype2[c]&(T_DIG))
#define dolchar(c) ((c<QUOTE) && _ctype2[c]&(T_AST|T_BRC|T_DIG|T_IDC|T_SHN))
#define digchar(c) ((c<QUOTE) && _ctype2[c]&(T_AST|T_DIG))
#define _DIG (T_DIG)
#define _IDCH (T_IDC|T_DIG)