I finally worked it out.
$var(c) = 0; Branch Count
looping through the ul:
append_branch($(ulc(aor=>addr)[$var(i)])); $(branch(dst_uri)[-1]) = $(ulc(aor=>received)[$var(i)]); $(branch(send_socket)[-1]) = $(ulc(aor=>socket)[$var(i)]); $avp(ua) = $(ulc(aor=>user_agent)[$var(i)]); $var(c) = $var(c) + 1;
branch_route[BR_T] { $var(uax) = $var(c) - $T_branch_idx - 1; xlog("L_INFO", "$cfg(route): BR_idx: $T_branch_idx UAX: $var(uax) User Agent: $(avp(ua)[$var(uax)]) \n"); route(FILTER_USERAGENT); # Do user_agent specific stuff. }
I hope append_branch works by adding at the end of the index and never inserting a branch in between.