/// <summary>
/// This is called by
/// <see cref="ReportError(Parser, RecognitionException)">ReportError(Parser, RecognitionException)
/// </see>
/// when the exception is a
/// <see cref="NoViableAltException">NoViableAltException</see>
/// .
/// </summary>
/// <seealso cref="ReportError(Parser, RecognitionException)">ReportError(Parser, RecognitionException)
/// </seealso>
/// <param name="recognizer">the parser instance</param>
/// <param name="e">the recognition exception</param>
protected internal virtual void ReportNoViableAlternative(Parser recognizer, NoViableAltException
e)
{
ITokenStream tokens = ((ITokenStream)recognizer.InputStream);
string input;
if (tokens is ITokenStream)
{
if (e.GetStartToken().Type == TokenConstants.Eof)
{
input = "<EOF>";
}
else
{
input = tokens.GetText(e.GetStartToken(), e.OffendingToken);
}
}
else
{
input = "<unknown input>";
}
string msg = "no viable alternative at input " + EscapeWSAndQuote(input);
NotifyErrorListeners(recognizer, msg, e);
}
/// <summary>
/// This is called by
/// <see cref="ReportError(Parser, RecognitionException)"/>
/// when the exception is a
/// <see cref="NoViableAltException"/>
/// .
/// </summary>
/// <seealso cref="ReportError(Parser, RecognitionException)"/>
/// <param name="recognizer">the parser instance</param>
/// <param name="e">the recognition exception</param>
protected internal virtual void ReportNoViableAlternative(Parser recognizer, NoViableAltException e)
{
ITokenStream tokens = ((ITokenStream)recognizer.InputStream);
string input;
if (tokens != null)
{
if (e.StartToken.Type == TokenConstants.Eof)
{
input = "<EOF>";
}
else
{
input = tokens.GetText(e.StartToken, e.OffendingToken);
}
}
else
{
input = "<unknown input>";
}
string msg = "no viable alternative at input " + EscapeWSAndQuote(input);
NotifyErrorListeners(recognizer, msg, e);
}