ES3Parser.PromoteEOL C# (CSharp) Method

        private void PromoteEOL(ParserRuleReturnScope rule)
        {
        	// Get current token and its type (the possibly offending token).
        	IToken lt = input.LT(1);
        	int la = lt.Type;
        	
        	// We only need to promote an EOL when the current token is offending (not a SEMIC, EOF, RBRACE, EOL or MultiLineComment).
        	// EOL and MultiLineComment are not offending as they're already promoted in a previous call to this method.
        	// Promoting an EOL means switching it from off channel to on channel.
        	// A MultiLineComment gets promoted when it contains an EOL.
        	if (!(la == SEMIC || la == EOF || la == RBRACE || la == EOL || la == MultiLineComment))
        	{
        		// Start on the possition before the current token and scan backwards off channel tokens until the previous on channel token.
        		for (int ix = lt.TokenIndex - 1; ix > 0; ix--)
        		{
        			lt = input.Get(ix);
        			if (lt.Channel == Token.DEFAULT_CHANNEL)
        			{
        				// On channel token found: stop scanning.
        				break;
        			}
        			else if (lt.Type == EOL || (lt.Type == MultiLineComment && (lt.Text.EndsWith("\r") || lt.Text.EndsWith("\n"))))
        			{
        				// We found our EOL: promote the token to on channel, position the input on it and reset the rule start.
        				lt.Channel = Token.DEFAULT_CHANNEL;
        				input.Seek(lt.TokenIndex);
        				if (rule != null)
        				{
        					rule.Start = lt;
        				}
        				break;
        			}
        		}
        	}
        }