[antlr-interest] Finding character index from parser exception

[Cameron Ross]

Hi,

I have an application that needs to know the index within the lexer's input
character stream where a parser exception occurred.  The RecognizerException
generated in the parser contains the line # and character position within
the line.  It also contains the index within the parser's input token stream
where the exception occurred.  How can I determine the character index
within the lexer's input stream when the exception is generated in the
parser?

Thanks,
Cameron.