ISSPACE
#define ISSPACE(x) \
#define ISSPACE(x) isspace((u_char)(x))
#define ISSPACE(c) ((c) == ' ' || (c) == '\t')
#define ISSPACE(c) ((c) == ' ' || (c) == '\t')
#define ISSPACE(c) (c == ' ' || c == '\t')
#define ISSPACE(c) (c == ' ' || c == '\t' || c == '\n' || c == '\0')
#undef ISSPACE
#define ISSPACE(x) isspace((u_char)(x))
#define ISSPACE(_c) \