Initial revision

src/cmd/mk/arc.c

@@ -0,0 +1,52 @@
+#include	"mk.h"
+
+Arc *
+newarc(Node *n, Rule *r, char *stem, Resub *match)
+{
+	Arc *a;
+
+	a = (Arc *)Malloc(sizeof(Arc));
+	a->n = n;
+	a->r = r;
+	a->stem = strdup(stem);
+	rcopy(a->match, match, NREGEXP);
+	a->next = 0;
+	a->flag = 0;
+	a->prog = r->prog;
+	return(a);
+}
+
+void
+dumpa(char *s, Arc *a)
+{
+	char buf[1024];
+
+	Bprint(&bout, "%sArc@%p: n=%p r=%p flag=0x%x stem='%s'",
+		s, a, a->n, a->r, a->flag, a->stem);
+	if(a->prog)
+		Bprint(&bout, " prog='%s'", a->prog);
+	Bprint(&bout, "\n");
+
+	if(a->n){
+		snprint(buf, sizeof(buf), "%s    ", (*s == ' ')? s:"");
+		dumpn(buf, a->n);
+	}
+}
+
+void
+nrep(void)
+{
+	Symtab *sym;
+	Word *w;
+
+	sym = symlook("NREP", S_VAR, 0);
+	if(sym){
+		w = (Word *) sym->value;
+		if (w && w->s && *w->s)
+			nreps = atoi(w->s);
+	}
+	if(nreps < 1)
+		nreps = 1;
+	if(DEBUG(D_GRAPH))
+		Bprint(&bout, "nreps = %d\n", nreps);
+}