static int firstch(register struct parse *p, register cset *cs);
static int nch(register struct parse *p, register cset *cs);
static void mcadd(register struct parse *p, register cset *cs, register char *cp);
+#if 0
static void mcsub(register cset *cs, register char *cp);
static int mcin(register cset *cs, register char *cp);
static char *mcfind(register cset *cs, register char *cp);
+#endif
static void mcinvert(register struct parse *p, register cset *cs);
static void mccase(register struct parse *p, register cset *cs);
static int isinsets(register struct re_guts *g, int c);