public StarDictIdx(StarDictInfo info, Encoding enc = null)
{
_enc = enc ?? Encoding.UTF8;
_offsetSize = info.PointerSize;
_nEntries = info.NumberOfEntries;
string fname = info.BaseName + ".idx";
if (File.Exists(fname))
{
_table = new TxtHeteroIdxTable(fname, MeasureEntryLength);
}
else
{
_table = new StrHeteroIdxTable(fname + ".gz", MeasureEntryLength);
}
//create and populate the index of index
_idxIdx = new int[_nEntries + 1];
for (int cnt = 1, offset = 0; cnt < _nEntries; ++cnt)
{
_idxIdx[cnt] = offset = _table.FindNext(offset);
}
_idxIdx[_nEntries] = info.IndexFileSize; //last sentry
}