interweave-autolink/src/HashtagMatcher.ts

URL, IP, email, and hashtag autolinking support for Interweave.

import React from 'react';
import { ChildrenNode, Matcher, MatchResponse, Node } from 'interweave';
import { HASHTAG_PATTERN } from './constants';
import { Hashtag } from './Hashtag';
import { HashtagProps } from './types';

export type HashtagMatch = Pick<HashtagProps, 'hashtag'>;

export class HashtagMatcher extends Matcher<HashtagProps> {
	replaceWith(children: ChildrenNode, props: HashtagProps): Node {
		return React.createElement(Hashtag, props, children);
	}

	asTag(): string {
		return 'a';
	}

	match(string: string): MatchResponse<HashtagMatch> | null {
		return this.doMatch(string, HASHTAG_PATTERN, (matches) => ({
			hashtag: matches[0],
		}));
	}
}