private StarDict(StarDictInfo info, IDictIdx index, string fileName, Encoding encoding)
{
this.encoding = encoding ?? Encoding.UTF8;
this.info = info;
this.index = index;
this.database = fileName.EndsWith("dz") ? DictZip.OpenRead(fileName) : (IDictDb) new TxtDictDb(fileName);
}
public StarDictIdx(StarDictInfo info, Encoding enc = null)
{
this.encoding = enc ?? Encoding.UTF8;
this.offsetSize = info.PointerSize;
var fname = info.BaseName + ".idx";
if (File.Exists(fname))
{
this.table = new TxtHeteroIdxTable(fname, this.MeasureEntryLength);
}
else
{
this.table = new StrHeteroIdxTable(fname + ".gz", this.MeasureEntryLength);
}
// create and populate the index of index
this.indexIndex = new int[info.NumberOfEntries + 1];
for (int cnt = 1, offset = 0; cnt < info.NumberOfEntries; ++cnt)
{
this.indexIndex[cnt] = offset = this.table.FindNext(offset);
}
this.indexIndex[info.NumberOfEntries] = info.IndexFileSize; // last sentry
}
public static StarDict TryOpen(string baseFileName, Encoding encoding = null)
{
var info = new StarDictInfo(baseFileName + ".ifo");
if (!info.IsValid)
{
return(null);
}
var idx = new StarDictIdx(info);
return(new StarDict(
info,
idx,
baseFileName + (File.Exists(baseFileName + ".dict") ? ".dict" : ".dict.dz"),
encoding));
}
