logicParser

http://mongo-logic.herokuapp.com/

Turn humain readable logical expressions into mongo query objects.

The main file is logicParser.js This librairie is usable in both the browser and node.js

Three objects are available:

• A lexer: require('logicParser.js').Tokenizer
• A parser: require('logicParser.js').Parser
• A compiler to a mongo query: require('logicParser.js').EvalToMongo

Example:

var Mongofier = require('logicParser.js').EvalToMongo;
var evalToMongo = new Mongofier();

var expression = "a = 4 and b = 2 or ab = 42";
var mongoQuery = evalToMongo.run(expression);

console.log(JSON.stringify(mongoQuery, null, '  '));