Add usage example read-me document

[NigelThorne]

I took a look at your code... I was trying to swap to your library from the Newtonsoft JSONPath implementation...

I can't work out how to do that.

How do I use your code? please can you update the readme with a worked example.. :)

Thanks,
Nigel

[atifaziz]

Meanwhile, have a look at the answer by Rick Sladkey to the question “How to use C# example using JsonPath?” on StackOverflow.

[NigelThorne]

Thanks for that...
I'm still hitting problems running through your examples in your readme.
None of the expressions in [] seem to work (because the ScriptEvaluator is missing).

My goal is to get all the examples in your Readme working...

    class JsonPathExecutor
    {
        public JContainer Apply(string input, string path)
        {
            var source = JToken.Parse(input);
            return new JArray(ApplyObj(path, source));
        }

        private object[] ApplyObj(string path, JToken source)
        {
            var context = new JsonPathContext
            {
                ValueSystem = new JsonNetValueSystem(),
                ScriptEvaluator = EvaluateScript
            };

            return context.Select(source, path).ToArray();
        }

        private object EvaluateScript(string path, object obj, string arg3)
        {
            var p = Regex.Replace(path, "^@", "");
            var results = ApplyObj(p, obj as JToken);
            return results.Any() ? new JArray(results) : null;
        }

I'm currently doing this... but it's not working exactly...

https://bitbucket.org/nigel__thorne/jsonpathsandbox/branch/JSONPath-experiment

[cburgmer]

I can offer https://github.com/cburgmer/json-path-comparison/tree/master/implementations/dotNET_JsonPathLib