arc.c - 9base - revived minimalist port of Plan 9 userland to Unix
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arc.c (826B)
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1 #include "mk.h"
2
3 Arc *
4 newarc(Node *n, Rule *r, char *stem, Resub *match)
5 {
6 Arc *a;
7
8 a = (Arc *)Malloc(sizeof(Arc));
9 a->n = n;
10 a->r = r;
11 a->stem = strdup(stem);
12 rcopy(a->match, match, NREGEXP);
13 a->next = 0;
14 a->flag = 0;
15 a->prog = r->prog;
16 return(a);
17 }
18
19 void
20 dumpa(char *s, Arc *a)
21 {
22 char buf[1024];
23
24 Bprint(&bout, "%sArc@%p: n=%p r=%p flag=0x%x stem='%s'",
25 s, a, a->n, a->r, a->flag, a->stem);
26 if(a->prog)
27 Bprint(&bout, " prog='%s'", a->prog);
28 Bprint(&bout, "\n");
29
30 if(a->n){
31 snprint(buf, sizeof(buf), "%s ", (*s == ' ')? s:"");
32 dumpn(buf, a->n);
33 }
34 }
35
36 void
37 nrep(void)
38 {
39 Symtab *sym;
40 Word *w;
41
42 sym = symlook("NREP", S_VAR, 0);
43 if(sym){
44 w = sym->u.ptr;
45 if (w && w->s && *w->s)
46 nreps = atoi(w->s);
47 }
48 if(nreps < 1)
49 nreps = 1;
50 if(DEBUG(D_GRAPH))
51 Bprint(&bout, "nreps = %d\n", nreps);
52 }