void
Xcount(void)
{
word *a;
char *s, *t;
int n;
char num[12];
if(count(runq->argv->words)!=1){
Xerror1("variable name not singleton!");
return;
}
s = runq->argv->words->word;
deglob(s);
n = 0;
for(t = s;'0'<=*t && *t<='9';t++) n = n*10+*t-'0';
if(n==0 || *t){
a = vlook(s)->val;
inttoascii(num, count(a));
}
else{
a = vlook("*")->val;
inttoascii(num, a && 1<=n && n<=count(a)?1:0);
}
poplist();
pushword(num);
}
/*
* get command line flags, initialize keywords & traps.
* get values from environment.
* set $pid, $cflag, $*
* fabricate bootstrap code and start it (*=(argv);. /usr/lib/rcmain $*)
* start interpreting code
*/
int
main(int argc, char *argv[])
{
code bootstrap[32];
char num[12], *rcmain;
int i;
/* needed for rcmain later */
putenv("PLAN9", unsharp("#9"));
argc = getflags(argc, argv, "ftjSsrdiIlxepvVc:1m:1[command]", 1);
if(argc==-1)
usage("[file [arg ...]]");
if(argv[0][0]=='-')
flag['l'] = flagset;
if(flag['I'])
flag['i'] = 0;
else if(flag['i']==0 && argc==1 && Isatty(0)) flag['i'] = flagset;
rcmain = flag['m'] ? flag['m'][0] : Rcmain();
err = openfd(2);
kinit();
Trapinit();
Vinit();
inttoascii(num, mypid = getpid());
pathinit();
setvar("pid", newword(num, (word *)0));
setvar("cflag", flag['c']?newword(flag['c'][0], (word *)0)
:(word *)0);
setvar("rcname", newword(argv[0], (word *)0));
i = 0;
bootstrap[i++].i = 1;
bootstrap[i++].f = Xmark;
bootstrap[i++].f = Xword;
bootstrap[i++].s="*";
bootstrap[i++].f = Xassign;
bootstrap[i++].f = Xmark;
bootstrap[i++].f = Xmark;
bootstrap[i++].f = Xword;
bootstrap[i++].s="*";
bootstrap[i++].f = Xdol;
bootstrap[i++].f = Xword;
bootstrap[i++].s = rcmain;
bootstrap[i++].f = Xword;
bootstrap[i++].s=".";
bootstrap[i++].f = Xsimple;
bootstrap[i++].f = Xexit;
bootstrap[i].i = 0;
start(bootstrap, 1, (var *)0);
/* prime bootstrap argv */
pushlist();
argv0 = strdup(argv[0]);
for(i = argc-1;i!=0;--i) pushword(argv[i]);
for(;;){
if(flag['r'])
pfnc(err, runq);
runq->pc++;
(*runq->code[runq->pc-1].f)();
if(ntrap)
dotrap();
}
}
