Is C#’s lambda expression grammar LALR(1)?

First off, parser theory was always one of my weak points. I mostly work on semantic analyzers. Second, all the C# parsers I’ve ever worked on have been hand-generated recursive descent parsers. One of my former colleagues who does have a strong background in parser theory did build his own parser generator and fed the … Read more

Getting String Value from Json Object Android

This might help you. Java: JSONArray arr = new JSONArray(result); JSONObject jObj = arr.getJSONObject(0); String date = jObj.getString(“NeededString”); Kotlin: val jsonArray = JSONArray(result) val jsonObject: JSONObject = jsonArray.getJSONObject(0) val date= jsonObject.get(“NeededString”) getJSONObject(index). In above example 0 represents index.

Lexer written in Javascript? [closed]

Something like http://jscc.phorward-software.com/, maybe? JS/CC is the first available parser development system for JavaScript and ECMAScript-derivates. It has been developed, both, with the intention of building a productive compiler development system and with the intention of creating an easy-to-use academic environment for people interested in how parse table generation is done general in bottom-up parsing. … Read more

Parse JSON object with string and value only

You need to get a list of all the keys, loop over them and add them to your map as shown in the example below: String s = “{menu:{\”1\”:\”sql\”, \”2\”:\”android\”, \”3\”:\”mvc\”}}”; JSONObject jObject = new JSONObject(s); JSONObject menu = jObject.getJSONObject(“menu”); Map<String,String> map = new HashMap<String,String>(); Iterator iter = menu.keys(); while(iter.hasNext()){ String key = (String)iter.next(); String … Read more