private ulong ReadEncSymbWord()
{
ulong encWord = 0;
for (int i = 0; i < 10; i++)
{
if (NextIsLower())
{
byte code = SymbTableFastCache.EncodedLetter(Read());
encWord = (encWord << 6) + code;
}
else if (NextIs('_'))
{
Skip();
if (NextIsLower())
{
byte code = SymbTableFastCache.EncodedUnderscoredLetter(Read());
encWord = (encWord << 6) + code;
}
else if (NextIsDigit())
{
encWord = (encWord << 6) + SymbTableFastCache.ENCODED_UNDERSCORE;
}
else
{
throw Fail();
}
}
else if (NextIsDigit())
{
byte code = SymbTableFastCache.EncodedDigit(Read());
encWord = (encWord << 6) + code;
}
else
{
return(encWord);
}
}
return(encWord);
}
public ushort ReadSymbol()
{
Debug.Assert(NextIsLower());
// long encWord1 = SymbTableFastCache.EncodedLetter(Read());
// for (int i=0 ; i < 9 ; i++) {
// if (NextIsLower()) {
// int code = SymbTableFastCache.EncodedLetter(Read());
// encWord1 = (encWord1 << 6) + code;
// }
// else if (NextIs('_')) {
// Skip();
// if (NextIsLower()) {
// int code = SymbTableFastCache.EncodedUnderscoredLetter(Read());
// encWord1 = (encWord1 << 6) + code;
// }
// else if (NextIsDigit()) {
// encWord1 = (encWord1 << 6) + SymbTableFastCache.ENCODED_UNDERSCORE;
// }
// else
// throw Fail();
// }
// else if (NextIsDigit()) {
// int code = SymbTableFastCache.EncodedDigit(Read());
// encWord1 = (encWord1 << 6) + code;
// }
// else {
// return SymbTableFastCache.EncToIdx(encWord1);
// }
// }
// if (!NextIsAlphaNum() & !NextIs('_'))
// return SymbTableFastCache.EncToIdx(encWord1);
// long encWord2 = 0;
// for (int i=0 ; i < 10 ; i++) {
// if (NextIsLower()) {
// int code = SymbTableFastCache.EncodedLetter(Read());
// encWord2 = (encWord2 << 6) + code;
// }
// else if (NextIs('_')) {
// Skip();
// if (NextIsLower()) {
// int code = SymbTableFastCache.EncodedUnderscoredLetter(Read());
// encWord2 = (encWord2 << 6) + code;
// }
// else if (NextIsDigit()) {
// encWord2 = (encWord2 << 6) + SymbTableFastCache.ENCODED_UNDERSCORE;
// }
// else
// throw Fail();
// }
// else if (NextIsDigit()) {
// int code = SymbTableFastCache.EncodedDigit(Read());
// encWord2 = (encWord2 << 6) + code;
// }
// else {
// return SymbTableFastCache.EncToIdx(encWord1, encWord2);
// }
// }
// if (!NextIsAlphaNum() & !NextIs('_'))
// return SymbTableFastCache.EncToIdx(encWord1, encWord2);
ulong encWord1 = ReadEncSymbWord();
if (!NextIsAlphaNum() & !NextIs('_'))
{
return(SymbTableFastCache.EncToIdx(encWord1));
}
ulong encWord2 = ReadEncSymbWord();
if (!NextIsAlphaNum() & !NextIs('_'))
{
return(SymbTableFastCache.EncToIdx(encWord1, encWord2));
}
ulong encWord3 = ReadEncSymbWord();
if (!NextIsAlphaNum() & !NextIs('_'))
{
return(SymbTableFastCache.EncToIdx(encWord1, encWord2, encWord3));
}
ulong[] encWords = new ulong[8];
encWords[0] = encWord1;
encWords[1] = encWord2;
encWords[2] = encWord3;
for (int i = 3; i < 64; i++)
{
if (i >= encWords.Length)
{
encWords = Array.Extend(encWords, 2 * encWords.Length);
}
encWords[i] = ReadEncSymbWord();
if (!NextIsAlphaNum() & !NextIs('_'))
{
return(SymbTableFastCache.EncToIdx(encWords, i + 1));
}
}
// The symbol was too long, we give up
throw Fail();
}