public EmitToken(Channel channel, string tokenType, bool isError)
{
if(channel == null) throw new ArgumentNullException(nameof(channel));
if(string.IsNullOrWhiteSpace(tokenType)) throw new ArgumentNullException(nameof(tokenType));
Channel = channel;
TokenType = tokenType;
IsError = isError;
}
public void AddStates(IDictionary<Mode, State> modeMap, CodePointEquivalenceClasses equivalenceClasses, NFA<LexerAction> nfa, int priority, Channel defaultChannel)
{
var states = Expression.AddTo(nfa, equivalenceClasses);
foreach(var mode in Modes)
nfa.AddEpsilonTransition(modeMap[mode], states.Start);
nfa.SetFinal(states.End);
// Set Action
nfa.SetData(states.End, new LexerAction(priority, GetValueAction(), GetModeActions(), GetEmitAction(defaultChannel), GetCodeAction()));
}
private LexerSpec(string lexerName, string lexerNamespace, IEnumerable<RuleSpec> rules, IEnumerable<Channel> channels, Channel defaultChannel, IEnumerable<Mode> modes, Mode initialMode, bool hasBeenSimplified)
{
LexerName = lexerName;
LexerNamespace = lexerNamespace;
Rules = new RuleSpecs(rules);
Channels = new HashSet<Channel>(channels);
DefaultChannel = defaultChannel;
Channels.Add(DefaultChannel);
Modes = new HashSet<Mode>(modes);
InitialMode = initialMode;
Modes.Add(InitialMode);
HasBeenSimplified = hasBeenSimplified;
}
public LexerSpec(string lexerName, string lexerNamespace, IEnumerable<RuleSpec> rules, IEnumerable<Channel> channels, Channel defaultChannel, IEnumerable<Mode> modes, Mode initialMode)
: this(lexerName, lexerNamespace, rules, channels, defaultChannel, modes, initialMode, false)
{
}
private LexerEmitAction GetEmitAction(Channel defaultChannel)
{
if(Commands.Contains(Command.More))
return LexerEmitAction.More;
if(Commands.Contains(Command.Skip))
return LexerEmitAction.Skip;
return LexerEmitAction.Token(Channel ?? defaultChannel, TokenType, Commands.Contains(Command.FlagError));
}
protected bool Equals(Channel other)
{
return string.Equals(Name, other.Name);
}