public TopDownParser(TopDownParseTabelle pt, RuleStart rs, string EOFSign)
{
m_pt = pt;
m_rs = rs;
m_ParseVerlaufArray = new MyArrayList();
m_EofSign = EOFSign;
}
protected virtual bool GenerateParseTable()
{
MyArrayList Terminals = GetAllTerminals();
Terminals.Add(new RuleTerminal(m_EofTerminal, null));
MyArrayList StartTokens = GetDifStartTokens();
m_LL1ParseTabelle = new TopDownParseTabelle(Terminals, StartTokens);
bool dblEntry = false;
for (int i = 0; i < m_Rules.Count; i++)
{
BNFRule rl = (BNFRule)m_Rules[i];
RuleStart rs = rl.GetStart();
int len = rs.GetRuleConnect().FirstSet.Count;
for (int j = 0; j < len; j++)
{
RuleElement re = (RuleElement)rs.GetRuleConnect().FirstSet[j];
string colSign = re.GetToken();
string rowSign = rs.GetToken();
if (!m_LL1ParseTabelle.Add(colSign, rowSign, rs))
{
dblEntry = true;
}
}
if (!rl.EpsilonFree)
{
len = rs.GetRuleConnect().FollowSet.Count;
for (int j = 0; j < len; j++)
{
RuleElement re = (RuleElement)rs.GetRuleConnect().FollowSet[j];
string colSign = re.GetToken();
string rowSign = rs.GetToken();
if (!m_LL1ParseTabelle.Add(colSign, rowSign, rs))
{
dblEntry = true;
}
}
}
}
return(!dblEntry);
}
/// <summary>
/// constructor
/// </summary>
public wc()
{
if (m_tr.m_Filename.Length > 0)
{
TextLoader BnfLd = new TextLoader(m_tr.m_Filename);
m_tr.m_BNF = BnfLd.Load();
}
BNFReader bnfReader = new BNFReader(m_tr.m_BNF);
if (bnfReader.Init())
{
if (m_tr.ParsingType == Translate.ParseType.LL1)
{
LL1ParseTable ParseTable = new LL1ParseTable(bnfReader.Rules, m_tr.m_StartSign);
if (ParseTable.Init())
{
string Sets = bnfReader.Print();
TextLoader SetsSv = new TextLoader("Mengen.txt");
SetsSv.Save(Sets);
TopDownParseTabelle ptbl = ParseTable.LL1ParseTabelle;
if (ptbl != null)
{
string strTbl = ptbl.Print();
TextLoader StrSv = new TextLoader("Tabelle.csv");
StrSv.Save(strTbl);
m_tdParser = new TopDownParser(ptbl, bnfReader.GetStartRule(ParseTable.StartRule), ParseTable.EofTerminal);
}
}
}
else if (m_tr.ParsingType == Translate.ParseType.SLR1)
{
SLR1ParseTable ParseTable = new SLR1ParseTable(bnfReader.Rules, m_tr.m_StartSign);
if (ParseTable.Init())
{
string huellen = bnfReader.Print() + "\n" + ParseTable.PrintHuellen() + "\n" + ParseTable.PrintGotoTable();
TextLoader StrSv = new TextLoader("Huellen.txt");
StrSv.Save(huellen);
ButtomUpParseTabelle ptbl = ParseTable.SLR1Table;
if (ptbl != null)
{
string strTbl = ptbl.Print();
TextLoader TblSv = new TextLoader("Tabelle.csv");
TblSv.Save(strTbl);
m_buParser = new ButtomUpParser(ParseTable);
}
}
}
else if (m_tr.ParsingType == Translate.ParseType.LR1)
{
LR1ParseTable ParseTable = new LR1ParseTable(bnfReader.Rules, m_tr.m_StartSign);
if (ParseTable.Init())
{
string huellen = bnfReader.Print() + "\n" + ParseTable.PrintHuellen() + "\n" + ParseTable.PrintGotoTable();
TextLoader StrSv = new TextLoader("Huellen.txt");
StrSv.Save(huellen);
ButtomUpParseTabelle ptbl = ParseTable.LR1Table;
if (ptbl != null)
{
string strTbl = ptbl.Print();
TextLoader TblSv = new TextLoader("Tabelle.csv");
TblSv.Save(strTbl);
m_buParser = new ButtomUpParser(ParseTable);
}
}
}
else if (m_tr.ParsingType == Translate.ParseType.LALR1)
{
LALR1ParseTable ParseTable = new LALR1ParseTable(bnfReader.Rules, m_tr.m_StartSign);
if (ParseTable.Init())
{
string huellen = bnfReader.Print() + "\n" + ParseTable.PrintHuellen() + "\n" + ParseTable.PrintGotoTable();
TextLoader StrSv = new TextLoader("Huellen.txt");
StrSv.Save(huellen);
ButtomUpParseTabelle ptbl = ParseTable.LR1Table;
if (ptbl != null)
{
string strTbl = ptbl.Print();
TextLoader TblSv = new TextLoader("Tabelle.csv");
TblSv.Save(strTbl);
m_buParser = new ButtomUpParser(ParseTable);
}
}
}
}
}