private void CompressCharLists()
{
CompressChoices(); // Unroll nested choices
RegularExpression curRE;
RCharacterList curCharList = null;
for (int i = 0; i < choices.Count; i++) {
curRE = choices[i];
while (curRE is RJustName)
curRE = ((RJustName) curRE).RegularExpression;
if (curRE is RStringLiteral &&
((RStringLiteral) curRE).Image.Length == 1)
choices[i] = curRE = new RCharacterList(((RStringLiteral) curRE).Image[0]);
if (curRE is RCharacterList) {
if (((RCharacterList) curRE).Negated)
((RCharacterList) curRE).RemoveNegation();
IList<object> tmp = ((RCharacterList) curRE).Descriptors;
if (curCharList == null)
choices[i] = curRE = curCharList = new RCharacterList();
else
choices.RemoveAt(i--);
for (int j = tmp.Count; j-- > 0;)
curCharList.Descriptors.Add(tmp[j]);
}
}
}
private void CompressCharLists()
{
CompressChoices(); // Unroll nested choices
RegularExpression curRE;
RCharacterList curCharList = null;
for (int i = 0; i < choices.Count; i++)
{
curRE = choices[i];
while (curRE is RJustName)
{
curRE = ((RJustName)curRE).RegularExpression;
}
if (curRE is RStringLiteral &&
((RStringLiteral)curRE).Image.Length == 1)
{
choices[i] = curRE = new RCharacterList(((RStringLiteral)curRE).Image[0]);
}
if (curRE is RCharacterList)
{
if (((RCharacterList)curRE).Negated)
{
((RCharacterList)curRE).RemoveNegation();
}
IList <object> tmp = ((RCharacterList)curRE).Descriptors;
if (curCharList == null)
{
choices[i] = curRE = curCharList = new RCharacterList();
}
else
{
choices.RemoveAt(i--);
}
for (int j = tmp.Count; j-- > 0;)
{
curCharList.Descriptors.Add(tmp[j]);
}
}
}
}
public override Nfa GenerateNfa(bool ignoreCase)
{
if (Image.Length == 1) {
RCharacterList temp = new RCharacterList(Image[0]);
return temp.GenerateNfa(ignoreCase);
}
NfaState startState = new NfaState();
NfaState theStartState = startState;
NfaState finalState = null;
if (Image.Length == 0)
return new Nfa(theStartState, theStartState);
int i;
for (i = 0; i < Image.Length; i++) {
finalState = new NfaState();
startState.charMoves = new char[1];
startState.AddChar(Image[i]);
if (Options.getIgnoreCase() || ignoreCase) {
startState.AddChar(Char.ToLower(Image[i]));
startState.AddChar(Char.ToUpper(Image[i]));
}
startState.next = finalState;
startState = finalState;
}
return new Nfa(theStartState, finalState);
}