David A. Carley dacarley

dacarley / regex-tagged-template-string.ts

Created August 7, 2024 17:25

A tagged template string implementation for composing regexes

	import { isRegExp, zipWith } from 'lodash';

	export function regex(strings: TemplateStringsArray, ...values: any[]): RegExp {
	const pattern = zipWith(strings, values, (str, value) => {
	if (isRegExp(value)) {
	value = value.source.replace(/^\^\|\$$/g, '');
	}

	return str + (value ?? '');
	}).join('');