private STToken ParseTokenInternal()
{
do
{
mCancelToken.ThrowIfCancellationRequested();
if (mMatch.Success)
{
if (mMatch.Index != mPosition)
{
throw new STException(string.Format(Properties.Resources.NoRecognizeStError, mText[mPosition]), mLine, mPosition);
}
var pGr = mMatch.Groups[1];
if (pGr.Success)
{
mPosition = pGr.Index + pGr.Length;
}
pGr = null;
STToken pSt = null;
if ((pGr = mMatch.Groups[grNumber]).Success)
{
pSt = new STTokenStr {
Token = ESTToken.Number, Line = mLine, Position = pGr.Index, Text = pGr.Value
};
mSymbol = null;
}
else if ((pGr = mMatch.Groups[grWord]).Success)
{
pSt = new STTokenStr {
Token = ESTToken.Word, Line = mLine, Position = pGr.Index, Text = pGr.Value
};
mSymbol = null;
}
else if ((pGr = mMatch.Groups[grSymbol]).Success)
{
mSymbol = pGr.Value;
}
else
{
throw new STException(string.Format(Properties.Resources.NoRecognizeStError, mText[mPosition]), mLine, mPosition);
}
if (pGr != null)
{
mPosition = pGr.Index + pGr.Length;
}
mMatch = mMatch.NextMatch();
return(pSt);
}
} while (ReadNextLine());
mSymbol = null;
return(null);
}
private bool ParseToken(out STToken argToken, out char argCar)
{
mCancelToken.ThrowIfCancellationRequested();
while (mLastChar.HasValue && char.IsWhiteSpace(mLastChar.Value))
{
ReadChar();
}
if (!mLastChar.HasValue)
{
argToken = null;
argCar = '\x0';
return(false);
}
int pIni, pFin, pLen = 0;
var pCar = mLastChar.Value;
pIni = pFin = mPosition;
switch (pCar)
{
case STTokenChars.Terminate:
case STTokenChars.TerminateNoShowOut:
argToken = null;
argCar = pCar;
return(true);
default:
if (char.IsDigit(pCar))
{
do
{
ReadChar();
pLen++;
} while (mLastChar.HasValue && char.IsDigit(mLastChar.Value));
argToken = new STTokenStr {
Token = ESTToken.Numeric, Position = pIni, Text = mText.Substring(pIni, pLen)
};
argCar = '\x0';
return(true);
}
break;
}
throw new STException(string.Format(Properties.Resources.NoRecognizeStError, pCar), pIni);
}
