private static bool DoTag(Interpreter interpreter, SourceReader reader, State state)
{
reader.Read(TokenType.LeftSquare);
var name = reader.ReadToken();
// Check if metapattern
if (name.Identifier == TokenType.Question)
{
state.AddPreBlueprint(new MetapatternBlueprint(interpreter));
interpreter.PushState(State.CreateDerivedDistinct(reader.Source, reader.ReadToScopeClose(TokenType.LeftSquare, TokenType.RightSquare, BracketPairs.All), interpreter));
return true;
}
// Check if replacer
if (name.Identifier == TokenType.Regex)
{
return DoReplacer(name, interpreter, reader, state);
}
if (name.Identifier == TokenType.Dollar)
{
return reader.IsNext(TokenType.Text) ? DoSubCall(name, interpreter, reader, state) : DoSubDefinition(name, interpreter, reader, state);
}
if (!Util.ValidateName(name.Value.Trim()))
throw new ManhoodException(reader.Source, name, "Invalid tag name '" + name.Value + "'");
bool none = false;
if (!reader.Take(TokenType.Colon))
{
if (!reader.Take(TokenType.RightSquare))
throw new ManhoodException(reader.Source, name, "Expected ':' or ']' after tag name.");
none = true;
}
if (none)
{
state.AddPreBlueprint(new TagBlueprint(interpreter, reader.Source, name));
}
else
{
var items = reader.ReadItemsToClosureTrimmed(TokenType.LeftSquare, TokenType.RightSquare,
TokenType.Semicolon, BracketPairs.All).ToArray();
state.AddPreBlueprint(new TagBlueprint(interpreter, reader.Source, name, items));
}
return true;
}
