| public CreateErrorToken ( string message ) : Token | ||
| message | string | |
| return | Token | |
}//method
//Scans the source text and constructs a new token
private void ScanToken()
{
if (!MatchNonGrammarTerminals() && !MatchRegularTerminals())
{
//we are in error already; try to match ANY terminal and let the parser report an error
MatchAllTerminals(); //try to match any terminal out there
}
var token = Context.CurrentToken;
//If we have normal token then return it
if (token != null && !token.IsError())
{
//set position to point after the result token
SourceStream.PreviewPosition = SourceStream.Location.Position + token.Length;
SourceStream.MoveLocationToPreviewPosition();
return;
}
//we have an error: either error token or no token at all
if (token == null) //if no token then create error token
{
Context.CurrentToken = SourceStream.CreateErrorToken(Resources.ErrInvalidChar, SourceStream.PreviewChar);
}
Recover();
}