index.d.ts

export interface Options {
	/**
	Modifies the [`source`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/source) property of the cloned `RegExp` instance.
	*/
	source?: string;

	/**
	Modifies the [`global`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/global) property of the cloned `RegExp` instance.
	*/
	global?: boolean;

	/**
	Modifies the [`ignoreCase`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/ignoreCase) property of the cloned `RegExp` instance.
	*/
	ignoreCase?: boolean;

	/**
	Modifies the [`multiline`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/multiline) property of the cloned `RegExp` instance.
	*/
	multiline?: boolean;

	/**
	Modifies the [`dotAll`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/dotAll) property of the cloned `RegExp` instance.
	*/
	dotAll?: boolean;

	/**
	Modifies the [`sticky`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/sticky) property of the cloned `RegExp` instance.
	*/
	sticky?: boolean;

	/**
	Modifies the [`unicode`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/unicode) property of the cloned `RegExp` instance.
	*/
	unicode?: boolean;

	/**
	Modifies the [`lastIndex`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex) property of the cloned `RegExp` instance.
	*/
	lastIndex?: number;
}

/**
Clone and modify a [RegExp](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp) instance.

@param regexp - Regex to clone.

@example
```
import cloneRegexp from 'clone-regexp';

const regex = /[a-z]/gi;

cloneRegexp(regex);
//=> /[a-z]/gi

cloneRegexp(regex) === regex;
//=> false

cloneRegexp(regex, {global: false});
//=> /[a-z]/i

cloneRegexp(regex, {multiline: true});
//=> /[a-z]/gim

cloneRegexp(regex, {source: 'unicorn'});
//=> /unicorn/gi
```
*/
export default function cloneRegexp(regexp: RegExp, options?: Options): RegExp;