eql-engine

E-Learnig query language interpreter

Usage

For node.js

// npm install eql-engine
var eql = require('eql-engine');

var query = eql.parse("select all:some text");
// do something with query

Parsed queries

SELECT

basic

// select all:Lorem ipsum
{
  "command": "select",
  "where": {
    "predicate": {
      "key": "all",
      "operator": "=",
      "value": "Lorem ipsum"
    }
  }
}

advanced

// select all:Lorem ipsum other:dolor sit amet
{
  "command": "select",
  "where": {
    "predicate": {
      "key": "all",
      "operator": "=",
      "value": "Lorem ipsum other"
    }
  }
}

// select all:Lorem ipsum && other!:dolor sit amet
{
  "command": "select",
  "where": {
    "predicate": {
      "key": "all",
      "operator": "=",
      "value": "Lorem ipsum"
    },
    "and": {
      "predicate": {
        "key": "other",
        "operator": "!=",
        "value": "dolor sit amet"
      }
    }
  }
}

// select all:Lorem ipsum || other:dolor sit amet
{
  "command": "select",
  "where": {
    "predicate": {
      "key": "all",
      "operator": "=",
      "value": "Lorem ipsum"
    },
    "or": {
      "predicate": {
        "key": "other",
        "operator": "=",
        "value": "dolor sit amet"
      }
    }
  }
}

// select all%Lorem ipsum || other:dolor sit amet
{
  "command": "select",
  "where": {
    "predicate": {
      "key": "all",
      "operator": "contains",
      "value": "Lorem ipsum"
    },
    "or": {
      "predicate": {
        "key": "other",
        "operator": "=",
        "value": "dolor sit amet"
      }
    }
  }
}

Licencia

Copyright(c) 2014 Dirección de Tecnología Educativa de Buenos Aires (Dte-ba)

Distrubuido bajo la licencia GNU GPL v3