public Lexicon()
{
m_tokenList = new List<TokenInfo>();
m_lexerStates = new List<Lexer>();
m_defaultState = new Lexer(this, 0);
m_lexerStates.Add(m_defaultState);
}
internal Lexer DefineLexer(Lexer baseLexer)
{
int index = m_lexerStates.Count;
Lexer newState = new Lexer(this, index, baseLexer);
m_lexerStates.Add(newState);
return newState;
}
internal TokenInfo(RegularExpression definition, Lexicon lexicon, Lexer state, Token tag)
{
Lexicon = lexicon;
Definition = definition;
State = state;
Tag = tag;
}
internal TokenInfo AddToken(RegularExpression definition, Lexer state, int indexInState, string description)
{
int index = m_tokenList.Count;
Token tag = new Token(index, description ?? definition.ToString(), state.Index);
TokenInfo token = new TokenInfo(definition, this, state, tag);
m_tokenList.Add(token);
return token;
}
internal Lexer(Lexicon lexicon, int index, Lexer baseLexer)
{
Children = new List<Lexer>();
Lexicon = lexicon;
BaseLexer = baseLexer;
m_tokens = new List<TokenInfo>();
Index = index;
if (baseLexer == null)
{
Level = 0;
}
else
{
Level = baseLexer.Level + 1;
baseLexer.Children.Add(this);
}
}