[antlr-interest] a question about 'while' logic

[csnowfox_antlr at 126.com]

hi``everybody
I am a beginners of antlr .
Now, I would like to add the cycle  logic to a new language, but I have no way to start. 
For example, to implement a logic 
a = 3;
While (a >1) {a --;}
not only get a string but do the logic.
Someone can enlighten about it? Or give examples.
thanks`
 
 


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