[antlr-interest] question on simple grammar for tick format to decimal conversion

[Micheal J]

> Can you please tell me more about the Fancy option - are you 
> saying that I need to implement a TokenStream which will do 
> this toggling after hitting the MINUS ?

Yes. After seeing a NUM MINUS sequence you may set a flag then if the next
token is NUM break up into digits. 

And then use it in your code. 
- You create your lexer. 
- Create the filter TokenStream to reads from your lexer. 
- Create the parser to read from your filter.
- Use parser.


Cheers,

Micheal