Ember-cli-nearley NPM

ember-cli-nearley

Simple Wrapper around Nearley. This provides a service that can be used to parse source code and also automatically compiles the index.ne file in app/grammar/

DEMO

Installation

ember install ember-cli-nearley

Usage

import Route from '@ember/routing/route';

import { inject } from '@ember/service';

export default Route.extend({
	nearley: inject(),

	actions: {
		onClick() {
			let value = this.controller.get('value');
			this.get('nearley').parse(value);
		}
	}
});

<div>
	{{#nearley-parse
		value=(concat input1 operator input2)
	as |computed|}}
		Result: {{computed}}
	{{/nearley-parse}}
</div>

Note this also includes Moo for tokenizing if needed
To use tokens from a different file file must be called tokens.js within app/grammar directory
and in your index.ne you must do this below. grammar-tokens is a shim created to allow you to import into your grammar.js file created from index.ne

@{%
	let moo = require('moo').default;

	let tokens = require('grammar-tokens').default;

	let lexer = moo.compile(tokens);
%}
# Pass your lexer object using the @lexer option:
@lexer lexer