re-template-tag: easily compose regular expressions

This package provides the template tag re for composing regular expressions.

Basic syntax

Syntax: the following two expressions produce the same regular expression.

``js
re/abc/gu
/abc/gu
`

Composing regular expressions

`js
import {re} from 're-template-tag';

const RE_YEAR = /([0-9]{4})/;
const RE_MONTH = /([0-9]{2})/;
const RE_DAY = /([0-9]{2})/;
const RE_DATE = re/^${RE_YEAR}-${RE_MONTH}-${RE_DAY}$/u;

RE_DATE.test('2017-01-23'); // true
``

More information

* Take a look at the unit tests.
* Check out the blog post on re-template-tag.

Acknowledgement

The syntax for separating flags from the actual regular expression is based on an idea by Mathias Bynens.