Shows code error fragment of input file
npm install code-error-fragment[npm-icon]: https://img.shields.io/npm/v/code-error-fragment.svg
[npm-downloads-icon]: https://img.shields.io/npm/dm/code-error-fragment.svg
[npm-url]: https://www.npmjs.com/package/code-error-fragment
[node-versions-icon]: https://img.shields.io/node/v/code-error-fragment.svg
[node-url]: https://nodejs.org
[test-icon]: https://travis-ci.org/vtrushin/code-error-fragment.svg?branch=master
[test-url]: https://travis-ci.org/vtrushin/code-error-fragment
[coverage-icon]: https://coveralls.io/repos/github/vtrushin/code-error-fragment/badge.svg?branch=master
[coverage-url]: https://coveralls.io/github/vtrushin/code-error-fragment?branch=master
[![NPM][npm-icon]][npm-url]
[![NPM downloads][npm-downloads-icon]][npm-url]
[![Requirements][node-versions-icon]][node-url]
[![Travis-CI][test-icon]][test-url]
Partially taken from https://github.com/csstree/csstree/blob/master/lib/tokenizer/error.js