source3/script/gap.awk

   1 BEGIN { hv["0"] =  0; hv["1"] =  1; hv["2"] =  2; hv["3"] =  3;
   2         hv["4"] =  4; hv["5"] =  5; hv["6"] =  6; hv["7"] =  7;
   3         hv["8"] =  8; hv["9"] =  9; hv["A"] = 10; hv["B"] = 11;
   4         hv["C"] = 12; hv["D"] = 13; hv["E"] = 14; hv["F"] = 15;
   5         hv["a"] = 10; hv["b"] = 11; hv["c"] = 12; hv["d"] = 13;
   6         hv["e"] = 14; hv["f"] = 15;
   7
   8         first = 0; last = 0; idx = 0;
   9 }
  10
  11 function tonum(str)
  12 {
  13   num=0;
  14   cnt=1;
  15   while (cnt <= length(str)) {
  16     num *= 16;
  17     num += hv[substr(str,cnt,1)];
  18     ++cnt;
  19   }
  20   return num;
  21 }
  22
  23 {
  24   u = tonum($1);
  25   if (u - last > 6)
  26     {
  27       if (last)
  28         {
  29           printf ("  { 0x%04x, 0x%04x, %5d },\n",
  30                   first, last, idx);
  31           idx -= u - last - 1;
  32         }
  33       first = u;
  34     }
  35   last = u;
  36 }
  37
  38 END { printf ("  { 0x%04x, 0x%04x, %5d },\n",
  39               first, last, idx); }