Any plan to support Bracket-notated child or children

[chace20]

Hi, I found you work only support '.' to get child, is there any plan to support '[]'?

var pathDelimiter = "."

Such like that:

JsonPath expressions can use the dot–notation $.store.book[0].title or the bracket–notation $['store']['book'][0]['title']

https://github.com/json-path/JsonPath