[antlr-interest] Context-sensitive Lexer

[Arcadio Rubio García]

Hi everyone,

I've recently migrated to ANTLR from Yacc, and I don't find the way to  
do context-sensitive scanning (lexing) with ANTLR.

Can anyone point how to define an identifier token so that it's not  
recognized when it's adjacent to an integer for instance, 1a is not  
recognized as an integer + identifier?

I used to do this with regular expressions, e.g.:

identifier = /\b[a-zA-Z_][a-zA-Z0-9_]*\b/

Thanks in advance.


- A. Rubio