public static async Task <DBCSEncoding> GetDBCSEncoding(string name)
{
name = name.ToLower();
DBCSEncoding encoding = new DBCSEncoding();
encoding._webName = name;
if (_cache.ContainsKey(name))
{
var tuple = _cache[name];
encoding._dbcsToUnicode = tuple.Item1;
encoding._unicodeToDbcs = tuple.Item2;
return(encoding);
}
var dbcsToUnicode = new char[0x10000];
var unicodeToDbcs = new ushort[0x10000];
/*
* According to many feedbacks, add this automatic function for finding resource in revision 1.0.0.1.
* We suggest that use the old method as below if you understand how to embed the resource.
* Please make sure the *.bin file was correctly embedded if throw an exception at here.
*/
//using (Stream stream = typeof(DBCSEncoding).Assembly.GetManifestResourceStream(typeof(DBCSEncoding).Namespace + "." + name + ".bin"))
using (Stream stream = await GetInstall())
using (BinaryReader reader = new BinaryReader(stream))
{
for (int i = 0; i < 0xffff; i++)
{
ushort u = reader.ReadUInt16();
unicodeToDbcs[i] = u;
}
for (int i = 0; i < 0xffff; i++)
{
ushort u = reader.ReadUInt16();
dbcsToUnicode[i] = (char)u;
}
}
_cache[name] = new Tuple <char[], ushort[]>(dbcsToUnicode, unicodeToDbcs);
encoding._dbcsToUnicode = dbcsToUnicode;
encoding._unicodeToDbcs = unicodeToDbcs;
return(encoding);
}
public DBCSDecoder(DBCSEncoding encoding)
{
_encoding = encoding;
}