PWB1/sys/source/s5/gmtch.c

gmatch(s, p)
register char *s, *p;
{
	register int c;
	int cc, ok, lc, scc;

	scc = *s;
	lc = 077777;
	switch (c = *p) {

	case '[':
		ok = 0;
		while (cc = *++p) {
			switch (cc) {

			case ']':
				if (ok)
					return(gmatch(++s, ++p));
				else
					return(0);

			case '-':
				ok =| lc <= scc & scc <= (cc=p[1]);
			}
			if (scc==(lc=cc)) ok++;
		}
		return(0);

	case '?':
	caseq:
		if(scc) return(gmatch(++s, ++p));
		return(0);
	case '*':
		return(umatch(s, ++p));
	case 0:
		return(!scc);
	}
	if (c==scc) goto caseq;
	return(0);
}

umatch(s, p)
register char *s, *p;
{
	if(*p==0) return(1);
	while(*s)
		if (gmatch(s++,p)) return(1);
	return(0);
}