When using a little more complex declarations the parser seems to detect errors where there are none. For example:
1. 
int (*(*f3(int z))(double ))(float ){
        return NULL;
}
Which is a declaration of a function returning a pointer to a function returning a pointer to a function.
2.
char (* ( *f())[])(){
    return NULL;
}
Which is a function returning a pointer to an array of pointers to functions.

All the above cases are highlighted with numerous errors like: Unexpected token {, Unexpected token } , Unresolved symbol f3 ,etc.
It's very hard and confusing to work this way because it ruins highlighting in the rest of the file too.