public static DFAModel CreateDFAModel(RegularExpression regex)
{
DFAModel model = new DFAModel();
model.regexCollection.Add(regex);
model.CreateDFAModel();
return(model);
}
public ScannerInfo GenerateData()
{
if (isGenerate)
{
return(this);
}
dfa.CreateDFAModel();
faState = new List <Token>();
for (int i = 0; i < dfa.DFAList.Count; i++)
{
faState.Add(null);
if (dfa.DFAList[i].isEndState)
{
faState[i] = new Token();
faState[i].Describtion = dfa.DFAList[i].Describtion;
faState[i].status = dfa.DFAList[i].index;
}
}
var inputSet = new List <int>();
dfaTable = new int[faState.Count, 256];
//too stupid way to init inputSet
for (int i = 0; i < dfa.DFAList.Count; i++)
{
for (int j = 0; j < 256; j++)
{
dfaTable[i, j] = -1;
}
}
//init hash table
hash = new int[256];
for (int i = 0; i < 256; i++)
{
hash[i] = -1;
}
for (int i = 0; i < faState.Count; i++)
{
var t = dfa.DFAList[i];
foreach (var x in t.Lead)
{
if (!inputSet.Contains(x.statement))
{
inputSet.Add(x.statement);
}
dfaTable[i, x.statement] = x.lead.Id;
}
}
//trying to shorten with the method below
isGenerate = true;
compressDFA(inputSet);
return(this);
}