1859   int active, cnt, idx, commas[];  member
1864   return bb->commas[(bb->cnt<0 ? 0 : bb->cnt)+1];  in brace_end()
1883       bb->active = bb->commas[bb->cnt+1] = i;  in expand_arg()
1887       j = 1+*bnext->commas;  in expand_arg()
1891           bnext->commas[2] = old[j];  in expand_arg()
1892           bnext->commas[3] = old[j+3];  in expand_arg()
1895             (sscanf(old+j+4, "..%u}%n", bnext->commas+4, &k) && k))  in expand_arg()
1900           for (k=0, j = 1+*bnext->commas; k<3; k++, j += x)  in expand_arg()
1901             if (!sscanf(old+j, "..%u%n"+2*!k, bnext->commas+2+k, &x)) break;  in expand_arg()
1906           if (!bnext->commas[4]) bnext->commas[4] = 1;  in expand_arg()
1907           if ((bnext->commas[3]-bnext->commas[2]>0) != (bnext->commas[4]>0))  in expand_arg()
1908             bnext->commas[4] *= -1;  in expand_arg()
1918       bb->commas[0] = i;  in expand_arg()
1928       bb->commas[++bb->cnt] = i;  in expand_arg()
1937   (bstk = xzalloc(sizeof(struct sh_brace)+8))->commas[1] = strlen(old)+1;  in expand_arg()
1938   bstk->commas[0] = -1;  in expand_arg()
1944     s = ss = xmalloc(bstk->commas[1]);  in expand_arg()
1952       if (brace_end(bstk)>bb->commas[0]) {  in expand_arg()
1953         i = bstk->commas[bstk->idx]+1;  in expand_arg()
1954         s = stpncpy(s, old+i, bb->commas[0]-i);  in expand_arg()
1966         if ((i = bnext->commas[0])>brace_end(bb)) break;  in expand_arg()
1969         if (i<bb->commas[bb->idx] || i>bb->commas[bb->idx+1]) {  in expand_arg()
1978       if (!bnext || bb->cnt<0 || bnext->commas[0]>bb->commas[bb->idx+1]) {  in expand_arg()
1982           k = bb->commas[2]+bb->commas[4]*bb->idx;  in expand_arg()
1985           i = bb->commas[bstk->idx]+1;  in expand_arg()
1986           s = stpncpy(s, old+i, bb->commas[bb->idx+1]-i);  in expand_arg()
1990         while (!bnext || bnext->commas[0]>brace_end(bstk)) {  in expand_arg()
1993           j = bb->commas[bb->idx+1]; // enclosing comma span (can't be a..b)  in expand_arg()
1996             if (bnext->commas[0]<j) {  in expand_arg()
1997               j = bnext->commas[0];// sibling  in expand_arg()
1999             } else if (brace_end(bb)>bnext->commas[0])  in expand_arg()
2006           if (bnext && bnext->commas[0]<brace_end(bb)) break;  in expand_arg()
2023         if (abs(bb->commas[2]-bb->commas[3]) < abs(++bb->idx*bb->commas[4]))  in expand_arg()