public ASTElement Parse(string Input)
{
Input += m_EofSign;
TerminalMatcher tm = new TerminalMatcher(Input, m_pt.Terminals);
RuleTerminal ReadTerminal = tm.GetNextTerminal();
while (ReadTerminal != null && !m_ps.IsEmpty && !ReadTerminal.Equals(m_EofSign))
{
string tmpVerlauf = ReadTerminal.GetToken() + " : " + m_ps.StackValues + "\n";
m_ParseVerlaufArray.Add(m_ps.StackArray);
m_ParseVarlauf += tmpVerlauf;
RuleElement re = m_ps.Pop();
if (re != null)
{
if (re.IsTerminal())
{
if (ReadTerminal.GetToken().Equals(re.GetToken()))
{
}
else
{
return(null);
}
ReadTerminal = tm.GetNextTerminal();
}
else if (re.GetToken().Length > 0 && ReadTerminal != null && ReadTerminal.GetToken().Length > 0)
{
RuleStart rs = m_pt.Get(ReadTerminal.GetToken(), re.GetToken());
if (rs == null)
{
return(null);
}
m_ps.Push(rs);
}
}
else
{
break;
}
}
return(m_ps.ASTRoot);
}
public ASTElement Parse(string Input)
{
m_ParseVarlauf = "";
Input += m_EofSign;
TerminalMatcher tm = new TerminalMatcher(Input, m_pt.Terminals);
RuleTerminal ReadTerminal = tm.GetNextTerminal();
bool bAccept = false;
while (!bAccept && ReadTerminal != null && !m_ps.IsEmpty && !ReadTerminal.Equals(m_EofSign))
{
string tmpVerlauf = ReadTerminal.GetToken() + " ; " + m_ps.StackValues;
m_ParseVerlaufArray.Add(m_ps.StackArray);
ButtomUpParseStack.buStackElement stkElm = m_ps.Look();
if (stkElm != null)
{
if (stkElm.IsRuleElement)
{
tmpVerlauf += "err";
}
else
{
int State = stkElm.GetState;
ButtomUpParseTabelle.ActionEntry ae = m_pt.Get(ReadTerminal, State);
if (ae != null)
{
if (ae.GetAction == ButtomUpParseTabelle.Actions.SHIFT)
{
tmpVerlauf += "; s " + ae.NextState.ToString();
m_ps.PushShift(ReadTerminal, ae.NextState);
ReadTerminal = tm.GetNextTerminal();
}
else if (ae.GetAction == ButtomUpParseTabelle.Actions.REDUCE)
{
int sm = ae.NextState;
tmpVerlauf += "; r " + ae.NextState.ToString();
if (sm < m_ParseTable.AllRules.Count)
{
BNFRule rl = (BNFRule)m_ParseTable.AllRules[sm];
int RlLen = rl.RuleLength();
for (int i = 0; i < RlLen; i++)
{
m_ps.Pop2();
}
ButtomUpParseStack.buStackElement stkLook = m_ps.Look();
if (stkLook != null)
{
int nxtState = m_ParseTable.GetGotoState(rl.GetStart(), stkLook.GetState);
m_ps.PushReduce(rl.GetStart(), nxtState);
tmpVerlauf += "; " + rl.GetRuleString();
}
}
}
else if (ae.GetAction == ButtomUpParseTabelle.Actions.JUMP)
{
tmpVerlauf += "; err";
}
else if (ae.GetAction == ButtomUpParseTabelle.Actions.ACCEPT)
{
tmpVerlauf += "; acc";
bAccept = true;
}
}
}
}
m_ParseVarlauf += tmpVerlauf + "\n";
}
return(m_ps.ASTRoot);
}
