//---------------------------------------------------------------------------
/* Reset parser to string parsing mode and clear internal buffers.
*
* Resets the token reader.
*/
private void ReInit()
{
m_pParserEngine = ParseFromString;
m_pTokenReader.ReInit();
m_rpn.Reset();
if (m_vStackBuffer != null)
{
Array.Clear(m_vStackBuffer, 0, m_vStackBuffer.Length);
}
m_nPos = 0;
}
} // user defind variables.
protected ParserXBase()
{
m_FunDef = new TokenMap();
m_PostOprtDef = new TokenMap();
m_InfixOprtDef = new TokenMap();
m_OprtDef = new SortedDictionary <string, IToken>(Comparer <string> .Create(Global.StringLengthComparer));
m_valDef = new TokenMap();
m_varDef = new TokenMap();
m_pParserEngine = ParseFromString;
m_valDynVarShadow = new List <IValue>();
m_rpn = new RPN();
m_cache = new ValueCache();
// m_vStackBuffer = new List<IValue>();
InitTokenReader();
}
//---------------------------------------------------------------------------
/* One of the two main parse functions.
* \sa ParseCmdCode(), ParseValue()
*
* Parse expression from input string. Perform syntax checking and create bytecode.
* After parsing the string and creating the bytecode the function pointer
#m_pParseFormula will be changed to the second parse routine the uses bytecode instead of string parsing.
*/
private IValue ParseFromString()
{
CreateRPN();
// Umsachalten RPN
m_vStackBuffer = new IValue[m_rpn.GetRequiredStackSize()];
for (int i = 0; i < m_vStackBuffer.Length; ++i)
{
Value pValue = new Value();
pValue.BindToCache(m_cache);
m_vStackBuffer[i] = pValue;
}
m_pParserEngine = ParseFromRPN;
return(m_pParserEngine());
}
