public void Init()
{
if (!_tokenizer.MoveNext())
{
ParseException.ExpectedToken();
}
_lookahead = _tokenizer.Token;
}
public bool Exist(Token name)
{
return _tags.Any(t => t.TagName.Equals(name));
}
public ITag Get(Token name)
{
return Get(name.Contents, name.Context);
}
private void ReinitLookAhead()
{
if (_tokenizer.MoveNext())
{
_lookahead = _tokenizer.Token;
}
}
private void InitLookAhead()
{
if (_tokenizer.MoveNext())
{
_previous = _current;
_current = _lookahead;
_lookahead = _tokenizer.Token;
}
}
public Token Next()
{
_previous = _current;
_current = _lookahead;
_lookahead = null;
if (_tokenizer.MoveNext())
{
_lookahead = _tokenizer.Token;
}
if (_current == null)
{
throw ParseException.ExpectedToken().Decorate(_previous);
}
return _current;
}
public TextPart(Token token)
: this(token.Contents, token.Context)
{
}
public bool At(ICollection <string> expectedTokens)
{
Token current = Current;
return(Current != null?expectedTokens.Contains(current.Contents) : false);
}