I have created a lexer and parser in javacc and I am trying to handle errors. I initially tried using try-catch blocks for each symbol that is missing in the parser but I read online something about catching the ParseException only once in the main block with a try-catch and manipulating it to get the last token read and next token and more similar things. I am trying to know more about it but I did not come across anything else as most places use try-catch blocks.
Till now, I know I can do : e.currentToken.image if I catch (ParseException e) and also e.getErrorOffset(), but would like to know if there are other methods that can be used to print a more human-readable and informative error. If anyone has any examples or could direct me to some document.Thanks in advance.
The best way to get better (or different) error messages may be to modify the ParseException class itself.