import 'moment/locale/es'; import 'moment/locale/el'; import 'moment/locale/eu'; import 'moment/locale/eo'; import 'moment/locale/de'; import 'moment/locale/zh-cn'; import 'moment/locale/fr'; import 'moment/locale/sv'; import 'moment/locale/ru'; import 'moment/locale/nl'; import 'moment/locale/it'; import 'moment/locale/fi'; import 'moment/locale/ca'; import 'moment/locale/fa'; import 'moment/locale/pl'; import 'moment/locale/pt-br'; import 'moment/locale/ja'; import 'moment/locale/ka'; import 'moment/locale/hi'; import 'moment/locale/gl'; import 'moment/locale/tr'; import 'moment/locale/hu'; import 'moment/locale/uk'; import 'moment/locale/sq'; import 'moment/locale/km'; import 'moment/locale/ga'; import 'moment/locale/sr'; import { UserOperation, Comment, CommentNode as CommentNodeI, Post, PrivateMessage, User, SortType, CommentSortType, ListingType, DataType, SearchType, WebSocketResponse, WebSocketJsonResponse, SearchForm, SearchResponse, CommentResponse, PostResponse, } from './interfaces'; import { UserService, WebSocketService } from './services'; import Tribute from 'tributejs/src/Tribute.js'; import markdown_it from 'markdown-it'; import markdown_it_sub from 'markdown-it-sub'; import markdown_it_sup from 'markdown-it-sup'; import markdownitEmoji from 'markdown-it-emoji/light'; import markdown_it_container from 'markdown-it-container'; import emojiShortName from 'emoji-short-name'; import Toastify from 'toastify-js'; import tippy from 'tippy.js'; import moment from 'moment'; export const repoUrl = 'https://github.com/LemmyNet/lemmy'; export const helpGuideUrl = '/docs/about_guide.html'; export const markdownHelpUrl = `${helpGuideUrl}#markdown-guide`; export const sortingHelpUrl = `${helpGuideUrl}#sorting`; export const archiveUrl = 'https://archive.is'; export const postRefetchSeconds: number = 60 * 1000; export const fetchLimit: number = 20; export const mentionDropdownFetchLimit = 10; export const languages = [ { code: 'ca', name: 'Català' }, { code: 'en', name: 'English' }, { code: 'el', name: 'Ελληνικά' }, { code: 'eu', name: 'Euskara' }, { code: 'eo', name: 'Esperanto' }, { code: 'es', name: 'Español' }, { code: 'de', name: 'Deutsch' }, { code: 'ga', name: 'Gaeilge' }, { code: 'gl', name: 'Galego' }, { code: 'hu', name: 'Magyar Nyelv' }, { code: 'ka', name: 'ქართული ენა' }, { code: 'km', name: 'ភាសាខ្មែរ' }, { code: 'hi', name: 'मानक हिन्दी' }, { code: 'fa', name: 'فارسی' }, { code: 'ja', name: '日本語' }, { code: 'pl', name: 'Polski' }, { code: 'pt_BR', name: 'Português Brasileiro' }, { code: 'zh', name: '中文' }, { code: 'fi', name: 'Suomi' }, { code: 'fr', name: 'Français' }, { code: 'sv', name: 'Svenska' }, { code: 'sq', name: 'Shqip' }, { code: 'sr_Latn', name: 'srpski' }, { code: 'tr', name: 'Türkçe' }, { code: 'uk', name: 'Українська Mова' }, { code: 'ru', name: 'Русский' }, { code: 'nl', name: 'Nederlands' }, { code: 'it', name: 'Italiano' }, ]; export const themes = [ 'litera', 'materia', 'minty', 'solar', 'united', 'cyborg', 'darkly', 'journal', 'sketchy', 'vaporwave', 'vaporwave-dark', 'i386', 'litely', ]; const DEFAULT_ALPHABET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; function getRandomCharFromAlphabet(alphabet: string): string { return alphabet.charAt(Math.floor(Math.random() * alphabet.length)); } export function randomStr( idDesiredLength: number = 20, alphabet = DEFAULT_ALPHABET ): string { /** * Create n-long array and map it to random chars from given alphabet. * Then join individual chars as string */ return Array.from({ length: idDesiredLength }) .map(() => { return getRandomCharFromAlphabet(alphabet); }) .join(''); } export function wsJsonToRes(msg: WebSocketJsonResponse): WebSocketResponse { let opStr: string = msg.op; return { op: UserOperation[opStr], data: msg.data, }; } export const md = new markdown_it({ html: false, linkify: true, typographer: true, }) .use(markdown_it_sub) .use(markdown_it_sup) .use(markdown_it_container, 'spoiler', { validate: function (params: any) { return params.trim().match(/^spoiler\s+(.*)$/); }, render: function (tokens: any, idx: any) { var m = tokens[idx].info.trim().match(/^spoiler\s+(.*)$/); if (tokens[idx].nesting === 1) { // opening tag return `
${md.utils.escapeHtml(m[1])} \n`; } else { // closing tag return '
\n'; } }, }) .use(markdownitEmoji, { defs: objectFlip(emojiShortName), }); export function hotRankComment(comment: Comment): number { return hotRank(comment.score, comment.published); } export function hotRankPost(post: Post): number { return hotRank(post.score, post.newest_activity_time); } export function hotRank(score: number, timeStr: string): number { // Rank = ScaleFactor * sign(Score) * log(1 + abs(Score)) / (Time + 2)^Gravity let date: Date = new Date(timeStr + 'Z'); // Add Z to convert from UTC date let now: Date = new Date(); let hoursElapsed: number = (now.getTime() - date.getTime()) / 36e5; let rank = (10000 * Math.log10(Math.max(1, 3 + score))) / Math.pow(hoursElapsed + 2, 1.8); // console.log(`Comment: ${comment.content}\nRank: ${rank}\nScore: ${comment.score}\nHours: ${hoursElapsed}`); return rank; } export function mdToHtml(text: string) { return { __html: md.render(text) }; } export function getUnixTime(text: string): number { return text ? new Date(text).getTime() / 1000 : undefined; } export function addTypeInfo( arr: Array, name: string ): Array<{ type_: string; data: T }> { return arr.map(e => { return { type_: name, data: e }; }); } export function canMod( user: User, modIds: Array, creator_id: number, onSelf: boolean = false ): boolean { // You can do moderator actions only on the mods added after you. if (user) { let yourIndex = modIds.findIndex(id => id == user.id); if (yourIndex == -1) { return false; } else { // onSelf +1 on mod actions not for yourself, IE ban, remove, etc modIds = modIds.slice(0, yourIndex + (onSelf ? 0 : 1)); return !modIds.includes(creator_id); } } else { return false; } } export function isMod(modIds: Array, creator_id: number): boolean { return modIds.includes(creator_id); } const imageRegex = new RegExp( /(http)?s?:?(\/\/[^"']*\.(?:jpg|jpeg|gif|png|svg|webp))/ ); const videoRegex = new RegExp(`(http)?s?:?(\/\/[^"']*\.(?:mp4))`); export function isImage(url: string) { return imageRegex.test(url); } export function isVideo(url: string) { return videoRegex.test(url); } export function validURL(str: string) { try { return !!new URL(str); } catch { return false; } } export function validEmail(email: string) { let re = /^(([^\s"(),.:;<>@[\\\]]+(\.[^\s"(),.:;<>@[\\\]]+)*)|(".+"))@((\[(?:\d{1,3}\.){3}\d{1,3}])|(([\dA-Za-z\-]+\.)+[A-Za-z]{2,}))$/; return re.test(String(email).toLowerCase()); } export function capitalizeFirstLetter(str: string): string { return str.charAt(0).toUpperCase() + str.slice(1); } export function routeSortTypeToEnum(sort: string): SortType { if (sort == 'new') { return SortType.New; } else if (sort == 'hot') { return SortType.Hot; } else if (sort == 'topday') { return SortType.TopDay; } else if (sort == 'topweek') { return SortType.TopWeek; } else if (sort == 'topmonth') { return SortType.TopMonth; } else if (sort == 'topyear') { return SortType.TopYear; } else if (sort == 'topall') { return SortType.TopAll; } } export function routeListingTypeToEnum(type: string): ListingType { return ListingType[capitalizeFirstLetter(type)]; } export function routeDataTypeToEnum(type: string): DataType { return DataType[capitalizeFirstLetter(type)]; } export function routeSearchTypeToEnum(type: string): SearchType { return SearchType[capitalizeFirstLetter(type)]; } export async function getPageTitle(url: string) { let res = await fetch(`/iframely/oembed?url=${url}`).then(res => res.json()); let title = await res.title; return title; } export function debounce( func: any, wait: number = 1000, immediate: boolean = false ) { // 'private' variable for instance // The returned function will be able to reference this due to closure. // Each call to the returned function will share this common timer. let timeout: any; // Calling debounce returns a new anonymous function return function () { // reference the context and args for the setTimeout function var context = this, args = arguments; // Should the function be called now? If immediate is true // and not already in a timeout then the answer is: Yes var callNow = immediate && !timeout; // This is the basic debounce behaviour where you can call this // function several times, but it will only execute once // [before or after imposing a delay]. // Each time the returned function is called, the timer starts over. clearTimeout(timeout); // Set the new timeout timeout = setTimeout(function () { // Inside the timeout function, clear the timeout variable // which will let the next execution run when in 'immediate' mode timeout = null; // Check if the function already ran with the immediate flag if (!immediate) { // Call the original function with apply // apply lets you define the 'this' object as well as the arguments // (both captured before setTimeout) func.apply(context, args); } }, wait); // Immediate mode and no wait timer? Execute the function.. if (callNow) func.apply(context, args); }; } export function getLanguage(): string { let user = UserService.Instance.user; let lang = user && user.lang ? user.lang : 'browser'; if (lang == 'browser') { return getBrowserLanguage(); } else { return lang; } } export function getBrowserLanguage(): string { return navigator.language; } export function getMomentLanguage(): string { let lang = getLanguage(); if (lang.startsWith('zh')) { lang = 'zh-cn'; } else if (lang.startsWith('sv')) { lang = 'sv'; } else if (lang.startsWith('fr')) { lang = 'fr'; } else if (lang.startsWith('de')) { lang = 'de'; } else if (lang.startsWith('ru')) { lang = 'ru'; } else if (lang.startsWith('es')) { lang = 'es'; } else if (lang.startsWith('eo')) { lang = 'eo'; } else if (lang.startsWith('nl')) { lang = 'nl'; } else if (lang.startsWith('it')) { lang = 'it'; } else if (lang.startsWith('fi')) { lang = 'fi'; } else if (lang.startsWith('ca')) { lang = 'ca'; } else if (lang.startsWith('fa')) { lang = 'fa'; } else if (lang.startsWith('pl')) { lang = 'pl'; } else if (lang.startsWith('pt')) { lang = 'pt-br'; } else if (lang.startsWith('ja')) { lang = 'ja'; } else if (lang.startsWith('ka')) { lang = 'ka'; } else if (lang.startsWith('hi')) { lang = 'hi'; } else if (lang.startsWith('el')) { lang = 'el'; } else if (lang.startsWith('eu')) { lang = 'eu'; } else if (lang.startsWith('gl')) { lang = 'gl'; } else if (lang.startsWith('tr')) { lang = 'tr'; } else if (lang.startsWith('hu')) { lang = 'hu'; } else if (lang.startsWith('uk')) { lang = 'uk'; } else if (lang.startsWith('sq')) { lang = 'sq'; } else if (lang.startsWith('km')) { lang = 'km'; } else if (lang.startsWith('ga')) { lang = 'ga'; } else if (lang.startsWith('sr')) { lang = 'sr'; } else { lang = 'en'; } return lang; } export function setTheme(theme: string = 'darkly', loggedIn: boolean = false) { // unload all the other themes for (var i = 0; i < themes.length; i++) { let styleSheet = document.getElementById(themes[i]); if (styleSheet) { styleSheet.setAttribute('disabled', 'disabled'); } } // if the user is not logged in, we load the default themes and let the browser decide if (!loggedIn) { document.getElementById('default-light').removeAttribute('disabled'); document.getElementById('default-dark').removeAttribute('disabled'); } else { document .getElementById('default-light') .setAttribute('disabled', 'disabled'); document .getElementById('default-dark') .setAttribute('disabled', 'disabled'); // Load the theme dynamically let cssLoc = `/static/assets/css/themes/${theme}.min.css`; loadCss(theme, cssLoc); document.getElementById(theme).removeAttribute('disabled'); } } export function loadCss(id: string, loc: string) { if (!document.getElementById(id)) { var head = document.getElementsByTagName('head')[0]; var link = document.createElement('link'); link.id = id; link.rel = 'stylesheet'; link.type = 'text/css'; link.href = loc; link.media = 'all'; head.appendChild(link); } } export function objectFlip(obj: any) { const ret = {}; Object.keys(obj).forEach(key => { ret[obj[key]] = key; }); return ret; } export function pictrsAvatarThumbnail(src: string): string { // sample url: http://localhost:8535/pictrs/image/thumbnail256/gs7xuu.jpg let split = src.split('/pictrs/image'); let out = `${split[0]}/pictrs/image/${ canUseWebP() ? 'webp/' : '' }thumbnail96${split[1]}`; return out; } export function showAvatars(): boolean { return ( (UserService.Instance.user && UserService.Instance.user.show_avatars) || !UserService.Instance.user ); } export function isCakeDay(published: string): boolean { // moment(undefined) or moment.utc(undefined) returns the current date/time // moment(null) or moment.utc(null) returns null const userCreationDate = moment.utc(published || null).local(); const currentDate = moment(new Date()); return ( userCreationDate.date() === currentDate.date() && userCreationDate.month() === currentDate.month() && userCreationDate.year() !== currentDate.year() ); } // Converts to image thumbnail export function pictrsImage(hash: string, thumbnail: boolean = false): string { let root = `/pictrs/image`; // Necessary for other servers / domains if (hash.includes('pictrs')) { let split = hash.split('/pictrs/image/'); root = `${split[0]}/pictrs/image`; hash = split[1]; } let out = `${root}/${canUseWebP() ? 'webp/' : ''}${ thumbnail ? 'thumbnail256/' : '' }${hash}`; return out; } export function isCommentType(item: Comment | PrivateMessage): item is Comment { return (item as Comment).community_id !== undefined; } export function toast(text: string, background: string = 'success') { let backgroundColor = `var(--${background})`; Toastify({ text: text, backgroundColor: backgroundColor, gravity: 'bottom', position: 'left', }).showToast(); } export function pictrsDeleteToast( clickToDeleteText: string, deletePictureText: string, deleteUrl: string ) { let backgroundColor = `var(--light)`; let toast = Toastify({ text: clickToDeleteText, backgroundColor: backgroundColor, gravity: 'top', position: 'right', duration: 10000, onClick: () => { if (toast) { window.location.replace(deleteUrl); alert(deletePictureText); toast.hideToast(); } }, close: true, }).showToast(); } export function messageToastify( creator: string, avatar: string, body: string, link: string, router: any ) { let backgroundColor = `var(--light)`; let toast = Toastify({ text: `${body}
${creator}`, avatar: avatar, backgroundColor: backgroundColor, className: 'text-dark', close: true, gravity: 'top', position: 'right', duration: 5000, onClick: () => { if (toast) { toast.hideToast(); router.history.push(link); } }, }).showToast(); } export function setupTribute(): Tribute { return new Tribute({ collection: [ // Emojis { trigger: ':', menuItemTemplate: (item: any) => { let shortName = `:${item.original.key}:`; return `${item.original.val} ${shortName}`; }, selectTemplate: (item: any) => { return `:${item.original.key}:`; }, values: Object.entries(emojiShortName).map(e => { return { key: e[1], val: e[0] }; }), allowSpaces: false, autocompleteMode: true, menuItemLimit: mentionDropdownFetchLimit, menuShowMinLength: 2, }, // Users { trigger: '@', selectTemplate: (item: any) => { let link = item.original.local ? `[${item.original.key}](/u/${item.original.name})` : `[${item.original.key}](/user/${item.original.id})`; return link; }, values: (text: string, cb: any) => { userSearch(text, (users: any) => cb(users)); }, allowSpaces: false, autocompleteMode: true, menuItemLimit: mentionDropdownFetchLimit, menuShowMinLength: 2, }, // Communities { trigger: '!', selectTemplate: (item: any) => { let link = item.original.local ? `[${item.original.key}](/c/${item.original.name})` : `[${item.original.key}](/community/${item.original.id})`; return link; }, values: (text: string, cb: any) => { communitySearch(text, (communities: any) => cb(communities)); }, allowSpaces: false, autocompleteMode: true, menuItemLimit: mentionDropdownFetchLimit, menuShowMinLength: 2, }, ], }); } let tippyInstance = tippy('[data-tippy-content]'); export function setupTippy() { tippyInstance.forEach(e => e.destroy()); tippyInstance = tippy('[data-tippy-content]', { delay: [500, 0], // Display on "long press" touch: ['hold', 500], }); } function userSearch(text: string, cb: any) { if (text) { let form: SearchForm = { q: text, type_: SearchType[SearchType.Users], sort: SortType[SortType.TopAll], page: 1, limit: mentionDropdownFetchLimit, }; WebSocketService.Instance.search(form); this.userSub = WebSocketService.Instance.subject.subscribe( msg => { let res = wsJsonToRes(msg); if (res.op == UserOperation.Search) { let data = res.data as SearchResponse; let users = data.users.map(u => { return { key: `@${u.name}@${hostname(u.actor_id)}`, name: u.name, local: u.local, id: u.id, }; }); cb(users); this.userSub.unsubscribe(); } }, err => console.error(err), () => console.log('complete') ); } else { cb([]); } } function communitySearch(text: string, cb: any) { if (text) { let form: SearchForm = { q: text, type_: SearchType[SearchType.Communities], sort: SortType[SortType.TopAll], page: 1, limit: mentionDropdownFetchLimit, }; WebSocketService.Instance.search(form); this.communitySub = WebSocketService.Instance.subject.subscribe( msg => { let res = wsJsonToRes(msg); if (res.op == UserOperation.Search) { let data = res.data as SearchResponse; let communities = data.communities.map(c => { return { key: `!${c.name}@${hostname(c.actor_id)}`, name: c.name, local: c.local, id: c.id, }; }); cb(communities); this.communitySub.unsubscribe(); } }, err => console.error(err), () => console.log('complete') ); } else { cb([]); } } export function getListingTypeFromProps(props: any): ListingType { return props.match.params.listing_type ? routeListingTypeToEnum(props.match.params.listing_type) : UserService.Instance.user ? UserService.Instance.user.default_listing_type : ListingType.All; } // TODO might need to add a user setting for this too export function getDataTypeFromProps(props: any): DataType { return props.match.params.data_type ? routeDataTypeToEnum(props.match.params.data_type) : DataType.Post; } export function getSortTypeFromProps(props: any): SortType { return props.match.params.sort ? routeSortTypeToEnum(props.match.params.sort) : UserService.Instance.user ? UserService.Instance.user.default_sort_type : SortType.Hot; } export function getPageFromProps(props: any): number { return props.match.params.page ? Number(props.match.params.page) : 1; } export function editCommentRes( data: CommentResponse, comments: Array ) { let found = comments.find(c => c.id == data.comment.id); if (found) { found.content = data.comment.content; found.updated = data.comment.updated; found.removed = data.comment.removed; found.deleted = data.comment.deleted; found.upvotes = data.comment.upvotes; found.downvotes = data.comment.downvotes; found.score = data.comment.score; } } export function saveCommentRes( data: CommentResponse, comments: Array ) { let found = comments.find(c => c.id == data.comment.id); if (found) { found.saved = data.comment.saved; } } export function createCommentLikeRes( data: CommentResponse, comments: Array ) { let found: Comment = comments.find(c => c.id === data.comment.id); if (found) { found.score = data.comment.score; found.upvotes = data.comment.upvotes; found.downvotes = data.comment.downvotes; if (data.comment.my_vote !== null) { found.my_vote = data.comment.my_vote; } } } export function createPostLikeFindRes(data: PostResponse, posts: Array) { let found = posts.find(c => c.id == data.post.id); if (found) { createPostLikeRes(data, found); } } export function createPostLikeRes(data: PostResponse, post: Post) { if (post) { post.score = data.post.score; post.upvotes = data.post.upvotes; post.downvotes = data.post.downvotes; if (data.post.my_vote !== null) { post.my_vote = data.post.my_vote; } } } export function editPostFindRes(data: PostResponse, posts: Array) { let found = posts.find(c => c.id == data.post.id); if (found) { editPostRes(data, found); } } export function editPostRes(data: PostResponse, post: Post) { if (post) { post.url = data.post.url; post.name = data.post.name; post.nsfw = data.post.nsfw; post.deleted = data.post.deleted; post.removed = data.post.removed; post.stickied = data.post.stickied; post.body = data.post.body; post.locked = data.post.locked; } } export function commentsToFlatNodes( comments: Array ): Array { let nodes: Array = []; for (let comment of comments) { nodes.push({ comment: comment }); } return nodes; } export function commentSort(tree: Array, sort: CommentSortType) { // First, put removed and deleted comments at the bottom, then do your other sorts if (sort == CommentSortType.Top) { tree.sort( (a, b) => +a.comment.removed - +b.comment.removed || +a.comment.deleted - +b.comment.deleted || b.comment.score - a.comment.score ); } else if (sort == CommentSortType.New) { tree.sort( (a, b) => +a.comment.removed - +b.comment.removed || +a.comment.deleted - +b.comment.deleted || b.comment.published.localeCompare(a.comment.published) ); } else if (sort == CommentSortType.Old) { tree.sort( (a, b) => +a.comment.removed - +b.comment.removed || +a.comment.deleted - +b.comment.deleted || a.comment.published.localeCompare(b.comment.published) ); } else if (sort == CommentSortType.Hot) { tree.sort( (a, b) => +a.comment.removed - +b.comment.removed || +a.comment.deleted - +b.comment.deleted || hotRankComment(b.comment) - hotRankComment(a.comment) ); } // Go through the children recursively for (let node of tree) { if (node.children) { commentSort(node.children, sort); } } } export function commentSortSortType(tree: Array, sort: SortType) { commentSort(tree, convertCommentSortType(sort)); } function convertCommentSortType(sort: SortType): CommentSortType { if ( sort == SortType.TopAll || sort == SortType.TopDay || sort == SortType.TopWeek || sort == SortType.TopMonth || sort == SortType.TopYear ) { return CommentSortType.Top; } else if (sort == SortType.New) { return CommentSortType.New; } else if (sort == SortType.Hot) { return CommentSortType.Hot; } else { return CommentSortType.Hot; } } export function postSort( posts: Array, sort: SortType, communityType: boolean ) { // First, put removed and deleted comments at the bottom, then do your other sorts if ( sort == SortType.TopAll || sort == SortType.TopDay || sort == SortType.TopWeek || sort == SortType.TopMonth || sort == SortType.TopYear ) { posts.sort( (a, b) => +a.removed - +b.removed || +a.deleted - +b.deleted || (communityType && +b.stickied - +a.stickied) || b.score - a.score ); } else if (sort == SortType.New) { posts.sort( (a, b) => +a.removed - +b.removed || +a.deleted - +b.deleted || (communityType && +b.stickied - +a.stickied) || b.published.localeCompare(a.published) ); } else if (sort == SortType.Hot) { posts.sort( (a, b) => +a.removed - +b.removed || +a.deleted - +b.deleted || (communityType && +b.stickied - +a.stickied) || b.hot_rank - a.hot_rank ); } } export const colorList: Array = [ hsl(0), hsl(100), hsl(150), hsl(200), hsl(250), hsl(300), ]; function hsl(num: number) { return `hsla(${num}, 35%, 50%, 1)`; } function randomHsl() { return `hsla(${Math.random() * 360}, 100%, 50%, 1)`; } export function previewLines(text: string, lines: number = 3): string { // Use lines * 2 because markdown requires 2 lines return text .split('\n') .slice(0, lines * 2) .join('\n'); } export function hostname(url: string): string { let cUrl = new URL(url); return window.location.port ? `${cUrl.hostname}:${cUrl.port}` : `${cUrl.hostname}`; } function canUseWebP() { // TODO pictshare might have a webp conversion bug, try disabling this return false; // var elem = document.createElement('canvas'); // if (!!(elem.getContext && elem.getContext('2d'))) { // var testString = !(window.mozInnerScreenX == null) ? 'png' : 'webp'; // // was able or not to get WebP representation // return ( // elem.toDataURL('image/webp').startsWith('data:image/' + testString) // ); // } // // very old browser like IE 8, canvas not supported // return false; } export function validTitle(title?: string): boolean { // Initial title is null, minimum length is taken care of by textarea's minLength={3} if (title === null || title.length < 3) return true; const regex = new RegExp(/.*\S.*/, 'g'); return regex.test(title); }