Blame iconvdata/gap.awk

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BEGIN { hv["0"] =  0; hv["1"] =  1; hv["2"] =  2; hv["3"] =  3;
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	hv["4"] =  4; hv["5"] =  5; hv["6"] =  6; hv["7"] =  7;
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	hv["8"] =  8; hv["9"] =  9; hv["A"] = 10; hv["B"] = 11;
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	hv["C"] = 12; hv["D"] = 13; hv["E"] = 14; hv["F"] = 15;
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	hv["a"] = 10; hv["b"] = 11; hv["c"] = 12; hv["d"] = 13;
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	hv["e"] = 14; hv["f"] = 15;
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	first = 0; last = 0; idx = 0;
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}
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function tonum(str)
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{
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  num=0;
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  cnt=1;
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  while (cnt <= length(str)) {
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    num *= 16;
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    num += hv[substr(str,cnt,1)];
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    ++cnt;
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  }
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  return num;
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}
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{
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  u = tonum($1);
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  if (u - last > 6)
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    {
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      if (last)
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	{
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	  printf ("  { .start = 0x%04x, .end = 0x%04x, .idx = %5d },\n",
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		  first, last, idx);
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	  idx -= u - last - 1;
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	}
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      first = u;
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    }
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  last = u;
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}
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END { printf ("  { .start = 0x%04x, .end = 0x%04x, .idx = %5d },\n",
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	      first, last, idx); }