public void updateSet()
{
SetC set = Sets.Last();
List <Token> symbols = new List <Token>();
for (int i = 0; i < set.Value.Count(); i++)
{
if (set.Value[i].TypeToken == Token.Type.SET_SIGN)
{
for (int j = (int)set.Value[i - 1].Value[0]; j <= (int)set.Value[i + 1].Value[0]; j++)
{
symbols.Add(new Token(0, 0, 0, Token.Type.SYMBOL, Convert.ToChar(j).ToString()));
}
set.Value.RemoveRange(i - 1, i + 2);
}
else if (set.Value[i].TypeToken == Token.Type.SYMBOL_COMMA)
{
set.Value.RemoveAt(i);
}
else if (set.Value[i].TypeToken == Token.Type.CHARACTER_SET)
{
string str = set.Value[i].Value.Replace("[:", "").Replace(":]", "");
for (int j = 0; j < str.Length; j++)
{
symbols.Add(new Token(0, 0, 0, Token.Type.SYMBOL, str[j].ToString()));
}
set.Value.RemoveAt(i);
}
}
set.Value.AddRange(symbols);
}
private State Evaluation(State state)
{
if (state != null && indexChar < charsList.Count())
{
List <Transition> statetransitions = transitions.FindAll(s => s.From.StateName == state.StateName);
char character = charsList[indexChar];
State toState = null;
/*if (char.IsWhiteSpace(character))
* {
* if (character.CompareTo('\n') != 0 && character.CompareTo('\t') != 0)
* {
* indexChar++;
* character = charsList[indexChar];
* }
* }*/
foreach (Transition transition in statetransitions)
{
bool exitLoop = false;
string tokenValue = transition.Token.Value;
StringBuilder entry = new StringBuilder();
switch (transition.Token.TypeToken)
{
case Token.Type.LINE_BREAK:
if (character.CompareTo('\n') == 0)
{
toState = transition.To;
exitLoop = true;
break;
}
break;
case Token.Type.SINGLE_QUOTE:
if (character.CompareTo('\'') == 0)
{
toState = transition.To;
exitLoop = true;
break;
}
break;
case Token.Type.DOUBLE_QUOTE:
if (character.CompareTo('\"') == 0)
{
toState = transition.To;
exitLoop = true;
break;
}
break;
case Token.Type.TABULATION:
if (character.CompareTo('\t') == 0)
{
toState = transition.To;
exitLoop = true;
break;
}
break;
case Token.Type.ID:
SetC set = sets.Find(x => x.Name == tokenValue);
if (set != null)
{
if (set.Value.Find(x => x.Value.Equals(character.ToString())) != null)
{
toState = transition.To;
exitLoop = true;
break;
}
}
break;
case Token.Type.NUMBER:
if (char.IsDigit(character))
{
toState = transition.To;
exitLoop = true;
break;
}
break;
case Token.Type.STR:
string str = tokenValue.Substring(1, tokenValue.Length - 2);
for (int i = 0; i < str.Length; i++)
{
entry.Append(charsList[indexChar + i]);
}
if (str.Equals(entry.ToString()))
{
indexChar += str.Length - 1;
toState = transition.To;
exitLoop = true;
break;
}
break;
case Token.Type.SYMBOL:
if (tokenValue.Equals(character))
{
toState = transition.To;
exitLoop = true;
break;
}
break;
}
if (exitLoop == true)
{
break;
}
}
if (toState != null)
{
indexChar++;
toState = Evaluation(toState);
}
return(toState);
}
return(state);
}
