[antlr-interest] Step-by-Step parsing

[Pablo H]

Hi everybody,

I am newbie in parser generator tools. I have just downloaded antlr and I
have made some basic examples. I would like to know how to use antlr for
parsing a grammar step-by-step. My goal is to develop a program that, given
that a particular state of the parsing processing, it returns the list of
candidate tokens. For example, given that the following grammar:

S : 'a' A 'c' B ;
A : ('b')* | 'c' ;
B : ('d')+ ;

if the parser has already recognized "abb", calling the function
getCandidateList() will return "b c".

May you provide me some hints?

Thank very much in advance
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