Antlr parsing rule to parse string with matching braces

[subhara...@gmail.com]

Crossposting from stackoverflow

I have a parser rule which looks like below

nested_query: ~(LPARAN | RPARAN)+? LPARAN nested_query RPARAN ~(LPARAN | RPARAN)+?
    | nested_query nested_query_op LPARAN nested_query RPARAN
    | ~(LPARAN | RPARAN)+?
    ;
nested_query_op: binary_in | binary_not_in ;
binary_in: 'in'; 
binary_not_in: 'not' 'in';
LPARAN: '(';
RPARAN: ')';

This correctly matches the string list(srcVm) of flows where typeTag ="TAG_SRC_IP_VM" until timestamp




But when I try to parse a string having more than one matching brackets it does not get properly parsed for example list(srcVm) of flows where (typeTag ="TAG_SRC_IP_VM") until timestamp




Can someone let me know how can I modify the above rule to match a string with more than one matching braces under nested_query rule?