matcher.service.js
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matcher.service.js
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	export const mentionMatchesUrl = (attention, url) => {
	if (url === attention.statusnet_profile_url) {
	return true
	}
	const [namepart, instancepart] = attention.screen_name.split('@')
	const matchstring = new RegExp('://' + instancepart + '/.*' + namepart + '$', 'g')

	return !!url.match(matchstring)
	}

	/**
	* Extract tag name from pleroma or mastodon url.
	* i.e https://bikeshed.party/tag/photo or https://quey.org/tags/sky
	* @param {string} url
	*/
	export const extractTagFromUrl = (url) => {
	const decoded = decodeURI(url)
	// https://git.pleroma.social/pleroma/elixir-libraries/linkify/-/blob/master/lib/linkify/parser.ex
	// https://www.pcre.org/original/doc/html/pcrepattern.html
	const regex = /tag[s]\/([\p{L}\p{N}_][\p{Alphabetic}_·\u{200c}][\p{L}\p{N}_·\p{M}\u{200c}]*)$/ug
	const result = regex.exec(decoded)
	if (!result) {
	return false
	}
	return result[1]
	}