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  • License MIT

Lucene query parser and formatter for JavaScript created using PEG.js

Package Exports

  • lucene

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (lucene) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

lucene   Build Status Dependency Status Coverage Status npm version

Parse, modify and stringify lucene queries.

Installation | Try It | Usage | Grammar | History

Installation

npm install --save lucene

Usage

const lucene = require('lucene');

const ast = lucene.parse('name:frank OR job:engineer');
console.log(ast);
// {
//   left: {
//     field: 'name',
//     term: 'frank'
//   },
//   operator: 'OR',
//   right: {
//     field: 'job',
//     term: 'engineer'
//   }
// }

console.log(lucene.toString(ast));
// name:frank OR job:engineer

Grammar

The parser is auto-generated from a PEG implementation in JavaScript called PEG.js.

To test the grammar without using the generated parser, or if you want to modify it, try out PEG.js online. This is a handy way to test arbitrary queries and see what the results will be like or debug a problem with the parser for a given piece of data.

History

This project is based on thoward/lucene-query-parser.js and its forks (most notably xomyaq/lucene-queryparser). The project is forked to allow some broader changes to the API surface area, project structure and additional capabilities.