even if RightAngleBrace priority is higher than RightMove, i still got a RightMove

[ReverseJay]

in my lexer grammar, i put a lot of operators and arrange them in a particular priority, like below

//...
LAngleBrace     : '<';
RAngleBrace     : '>';
//...
LeftMove        : '<<';
RightMove       : '>>';
Smaller         : '<';
Bigger          : '>';

in my parser, i put a expr parser to recognize expression, like below

expr        : expr '::' expr
            //...
            | expr LAngleBrace expr? RAngleBrace
            //...
            | expr ('<<'|'>>') expr
            | expr (Smaller | Bigger | '>=' | '<=') expr
            ;

i manually assign LAngleBrace/RAngleBrace or Smaller/Bigger, so that it won't be confused
but when i run with
TypeA<TypeB<TypeC>> Var
i still got a TypeC '>>' Var, even if lexer grammar has a higher priority, or parser grammar(expr LAngleBrace expr? RAngleBrace) has a higher priority
i asked this question once, but i think last time i didn't figure out how it happens, now i am here again

[ReverseJay]

now i guess it's because lexer run before parser, and lexer could only use one strategy, either fit the longest one, or shortest one, so it seems impossible to recognize correctly unless parser could effect lexer