☰

Gazelle extract featured artists from description

Tries to recognize and add featured artists from selected text in group description

当前为 2020-08-11 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Gazelle extract featured artists from description
  3. // @namespace    https://greasyfork.org/cs/users/321857-anakunda
  4. // @version      1.35
  5. // @description  Tries to recognize and add featured artists from selected text in group description
  6. // @author       Anakunda
  7. // @copyright    2020, Anakunda (https://greasyfork.org/cs/users/321857-anakunda)
  8. // @license      GPL-3.0-or-later
  9. // @match        https://redacted.ch/torrents.php?*id=*
  10. // @match        https://orpheus.network/torrents.php?*id=*
  11. // @match        https://notwhat.cd/torrents.php?*id=*
  12. // @grant        RegExp
  13. // @grant        GM_xmlhttpRequest
  14. // @grant        GM_getValue
  15. // @grant        GM_setValue
  16. // @grant        GM_deleteValue
  17. // @grant        GM_log
  18. // @require      https://greasyfork.org/scripts/388280-xpathlib/code/XPathLib.js
  19. // ==/UserScript==
  20.  
  21. const multiArtistParsers = [
  22.   /\s*[,;\u3001](?!\s*(?:[JjSs]r)\b)(?:\s*[Aa]nd\s+)?\s*/,
  23.   /\s+[\/\|\×]\s+/,
  24. ];
  25. const pseudoArtistParsers = [
  26.   /^(?:#??N[\/\-]?A|[JS]r\.?)$/i,
  27.   /^(?:traditional|lidová)$/i,
  28.   /\b(?:traditional|lidová)$/,
  29.   /^(?:tradiční|lidová)\s+/,
  30.   /^(?:[Aa]nonym)/,
  31.   /^(?:[Ll]iturgical\b|[Ll]iturgick[áý])/,
  32.   /^(?:auditorium|[Oo]becenstvo|[Pp]ublikum)$/,
  33.   /^(?:Various\s+Composers)$/i,
  34.   /^(?:Guests|Friends)$/i,
  35. ];
  36. const ampersandParsers = [
  37.   /\s+(?:vs\.?|X)\s+(?!\s*(?:[\&\/\+\,\;]|and))/i,
  38.   /\s*[;\/\|\×]\s*(?!\s*(?:\s*[\&\/\+\,\;]|and))/i,
  39.   /\s+(?:[\&\+]|and)\s+(?!his\b|her\b|Friends$|Strings$)/i, // /\s+(?:[\&\+]|and)\s+(?!(?:The|his|her|Friends)\b)/i,
  40.   /\s*\+\s*(?!(?:his\b|her\b|Friends$|Strings$))/i,
  41. ];
  42. const featParsers = [
  43.   /\s+(?:[Ww]ith)\s+(?!his\b|her\b|Friends$|Strings$)(.*?)\s*$/,
  44.   /(?:\s+[\-\−\—\–\_])?\s+(?:[Ff](?:eaturing|t\.))\s+(.*?)\s*$/,
  45.   /(?:\s+[\-\−\—\–\_])?\s+(?:[Ff](?:ea)?t\.)\s+(.*?)\s*$/,
  46.   /\s+\[\s*f(?:eat(?:\.|uring)|t\.)\s+([^\[\]]+?)\s*\]/i,
  47.   /\s+\(\s*f(?:eat(?:\.|uring)|t\.)\s+([^\(\)]+?)\s*\)/i,
  48.   /\s+\[\s*(?:(?:en\s+)?duo\s+)?avec\s+([^\[\]]+?)\s*\]/i,
  49.   /\s+\(\s*(?:(?:en\s+)?duo\s+)?avec\s+([^\(\)]+?)\s*\)/i,
  50.   /\s+\[\s*(?:with|w\/)\s+(?![Hh]is\b|[Hh]er\b|Friends$|Strings$)([^\[\]]+?)\s*\]/,
  51.   /\s+\(\s*(?:with|w\/)\s+(?![Hh]is\b|[Hh]er\b|Friends$|Strings$)([^\(\)]+?)\s*\)/,
  52. ];
  53. const remixParsers = [
  54.   /\s+\((?:The\s+)Remix(?:e[sd])?\)/i,
  55.   /\s+\[(?:The\s+)Remix(?:e[sd])?\]/i,
  56.   /\s+(?:The\s+)Remix(?:e[sd])?\s*$/i,
  57.   /^(Remixes)\b/,
  58.   /\s+\(([^\(\)]+?)(?:[\'\’\`]s)?\s+(?:(?:Extended|Enhanced)\s+)?Remix\)/i,
  59.   /\s+\[([^\[\]]+?)(?:[\'\’\`]s)?\s+(?:(?:Extended|Enhanced)\s+)?Remix\]/i,
  60.   /\s+\([^\(\)]*\b(?:(Extended|Enhanced)\s+)?Remix(?:ed)?\s+by\s+([^\(\)]+)\)/i,
  61.   /\s+\[[^\[\]]*\b(?:(Extended|Enhanced)\s+)?Remix(?:ed)?\s+by\s+([^\[\]]+)\]/i,
  62. ];
  63. const otherArtistsParsers = [
  64.   [/^(.*?)\s+(?:under|(?:conducted)\s+by)\s+(.*)$/, 4],
  65.   [/^()(.*?)\s+\(conductor\)$/i, 4],
  66.   //[/^()(.*?)\s+\(.*\)$/i, 1],
  67. ];
  68. const artistStrips = [
  69.   /\s+(?:aka|AKA)\.?\s+(.*)$/,
  70.   /\s+\(([^\(\)]+)\)$/,
  71.   /\s+\[([^\[\]]+)\]$/,
  72.   /\s+\{([^\{\}]+)\}$/,
  73. ];
  74.  
  75. const siteApiTimeframeStorageKey = document.location.hostname + ' API time frame';
  76. const gazelleApiFrame = 10500;
  77. var artist_index, siteArtistsCache = {}, notSiteArtistsCache = [], xhr = new XMLHttpRequest;
  78. var modal = null, btnAdd = null, btnCustom = null, customCtrls = [], sel = null, ajaxRejects = 0;
  79. var prefs = {
  80.   set: function(prop, def) { this[prop] = GM_getValue(prop, def) }
  81. };
  82.  
  83. (function() {
  84.   'use strict';
  85.  
  86.   const styleSheet = `
  87. .modal {
  88.   position: fixed;
  89.   left: 0;
  90.   top: 0;
  91.   width: 100%;
  92.   height: 100%;
  93.   background-color: rgba(0, 0, 0, 0.5);
  94.   opacity: 0;
  95.   visibility: hidden;
  96.   transform: scale(1.1);
  97.   transition: visibility 0s linear 0.25s, opacity 0.25s 0s, transform 0.25s;
  98. }
  99. .modal-content {
  100.   position: absolute;
  101.   top: 50%;
  102.   left: 50%;
  103.   font-size: 17px;
  104.   transform: translate(-50%, -50%);
  105.   background-color: FloralWhite;
  106.   color: black;
  107.   width: 31rem;
  108.   border-radius: 0.5rem;
  109.   padding: 2rem 2rem 2rem 2rem;
  110.   font-family: monospace;
  111. }
  112. .show-modal {
  113.   opacity: 1;
  114.   visibility: visible;
  115.   transform: scale(1.0);
  116.   transition: visibility 0s linear 0s, opacity 0.25s 0s, transform 0.25s;
  117. }
  118. input[type="text"] { cursor: text; }
  119. input[type="radio"] { cursor: pointer; }
  120. .lbl { cursor: pointer; }
  121.  
  122. .tooltip {
  123.   position: relative;
  124. }
  125.  
  126. .tooltip .tooltiptext {
  127.   visibility: hidden;
  128.   width: 120px;
  129.   background-color: #555;
  130.   color: #fff;
  131.   text-align: center;
  132.   border-radius: 6px;
  133.   padding: 5px 0;
  134.   position: absolute;
  135.   z-index: 1;
  136.   bottom: 125%;
  137.   left: 50%;
  138.   margin-left: -60px;
  139.   opacity: 0;
  140.   transition: opacity 0.3s;
  141. }
  142.  
  143. .tooltip .tooltiptext::after {
  144.   position: absolute;
  145.   top: 100%;
  146.   left: 50%;
  147.   margin-left: -5px;
  148.   border-width: 5px;
  149.   border-style: solid;
  150.   border-color: #555 transparent transparent transparent;
  151. }
  152.  
  153. .tooltip:hover .tooltiptext {
  154.   visibility: visible;
  155.   opacity: 1;
  156. }
  157. `;
  158.  
  159.   var addBox = document.querySelector('form.add_form[name="artists"]');
  160.   if (addBox == null) return;
  161.   btnAdd = document.createElement('input');
  162.   btnAdd.id = 'add-artists-from-selection';
  163.   btnAdd.value = 'Extract from selection';
  164.   btnAdd.onclick = add_from_selection;
  165.   btnAdd.type = 'button';
  166.   btnAdd.style.marginLeft = '5px';
  167.   btnAdd.style.visibility = 'hidden';
  168.   addBox.appendChild(btnAdd);
  169.  
  170.   var style = document.createElement('style');
  171.   document.head.appendChild(style);
  172.   style.id = 'artist-parser-form';
  173.   style.type = 'text/css';
  174.   style.innerHTML = styleSheet;
  175.   var el, elem = [];
  176.   elem.push(document.createElement('div'));
  177.   elem[elem.length - 1].className = 'modal';
  178.   elem[elem.length - 1].id = 'add-from-selection-form';
  179.   modal = elem[0];
  180.   elem.push(document.createElement('div'));
  181.   elem[elem.length - 1].className = 'modal-content';
  182.   elem.push(document.createElement('input'));
  183.   elem[elem.length - 1].id = 'btnFill';
  184.   elem[elem.length - 1].type = 'submit';
  185.   elem[elem.length - 1].value = 'Capture';
  186.   elem[elem.length - 1].style = "position: fixed; right: 30px; width: 80px; top: 30px;";
  187.   elem[elem.length - 1].onclick = do_parse;
  188.   elem.push(document.createElement('input'));
  189.   elem[elem.length - 1].id = 'btnCancel';
  190.   elem[elem.length - 1].type = 'button';
  191.   elem[elem.length - 1].value = 'Cancel';
  192.   elem[elem.length - 1].style = "position: fixed; right: 30px; width: 80px; top: 65px;";
  193.   elem[elem.length - 1].onclick = closeModal;
  194.   var presetIndex = 0;
  195.   function addPreset(val, label = 'Custom', rx = null, order = [1, 2]) {
  196. 	elem.push(document.createElement('div'));
  197. 	el = document.createElement('input');
  198. 	elem[elem.length - 1].style.paddingBottom = '10px';
  199. 	el.id = 'parse-preset-' + val;
  200. 	el.name = 'parse-preset';
  201. 	el.value = val;
  202. 	if (val == 1) el.checked = true;
  203. 	el.type = 'radio';
  204. 	el.onchange = update_custom_ctrls;
  205. 	if (rx) {
  206. 	  el.rx = rx;
  207. 	  el.order = order;
  208. 	}
  209. 	if (val == 999) btnCustom = el;
  210. 	elem[elem.length - 1].appendChild(el);
  211. 	el = document.createElement('label');
  212. 	el.style.marginLeft = '10px';
  213. 	el.style.marginRight = '10px';
  214. 	el.htmlFor = 'parse-preset-' + val;
  215. 	el.className = 'lbl';
  216. 	el.innerHTML = label;
  217. 	elem[elem.length - 1].appendChild(el);
  218. 	if (val != 999) return;
  219. 	el = document.createElement('input');
  220. 	el.type = 'text';
  221. 	el.id = 'custom-pattern';
  222. 	el.style.width = '20rem';
  223. 	el.style.fontFamily = 'monospace';
  224. 	el.autoComplete = "on";
  225. 	addTooltip(el, 'RegExp to parse lines, first two captured groups are used');
  226. 	customCtrls.push(elem[elem.length - 1].appendChild(el));
  227. 	el = document.createElement('input');
  228. 	el.type = 'radio';
  229. 	el.name = 'parse-order';
  230. 	el.id = 'parse-order-1';
  231. 	el.value = 1;
  232. 	el.checked = true;
  233. 	el.style.marginLeft = '1rem';
  234. 	addTooltip(el, 'Captured regex groups assigned in order $1: artist(s), $2: assignment');
  235. 	customCtrls.push(elem[elem.length - 1].appendChild(el));
  236. 	el = document.createElement('label');
  237. 	el.htmlFor = 'parse-order-1';
  238. 	el.textContent = '→';
  239. 	el.style.marginLeft = '5px';
  240. 	elem[elem.length - 1].appendChild(el);
  241. 	el = document.createElement('input');
  242. 	el.type = 'radio';
  243. 	el.name = 'parse-order';
  244. 	el.id = 'parse-order-2';
  245. 	el.value = 2;
  246. 	el.style.marginLeft = '10px';
  247. 	addTooltip(el, 'Captured regex groups assigned in order $1: assignment, $2: artist(s)');
  248. 	customCtrls.push(elem[elem.length - 1].appendChild(el));
  249. 	el = document.createElement('label');
  250. 	el.htmlFor = 'parse-order-2';
  251. 	el.textContent = '←';
  252. 	el.style.marginLeft = '5px';
  253. 	elem[elem.length - 1].appendChild(el);
  254.   }
  255.   addPreset(++presetIndex, escapeHTML('<artist(s)> - <assignment>]'), /^\s*(.+?)(?:\:|\s+[\-\−\—\~\–]+\s+(.*?))?\s*$/);
  256.   addPreset(++presetIndex, escapeHTML('<artist>[, <assignment>]') +
  257. 	'<span style="font-family: initial;">&nbsp;&nbsp;<i>(HRA style)</i></span>', /^\s*(.+?)(?:\:|\s*,\s*(.*?))?\s*$/);
  258.   addPreset(++presetIndex, escapeHTML('<artist(s)>[: <assignment>]'), /^\s*(.+?)(?:\:|\s*:+\s*(.*?))?(?:\s*,)?\s*$/);
  259.   addPreset(++presetIndex, escapeHTML('<artist(s)>[ (<assignment>)]'), /^\s*(.+?)(?:\:|\s+(?:\([^\(\)]+\)|\[[^\[\]]+\]|\{[^\{\}]+\}))?(?:\s*,)?\s*$/);
  260.   addPreset(++presetIndex, escapeHTML('[<assignment> - ]<artist(s)>'), /^\s*(?:(.*?)\s+[\-\−\—\~\–]+\s+)?(.+?)\:?(?:\s*,)?\s*$/, [2, 1]);
  261.   addPreset(++presetIndex, escapeHTML('[<assignment>: ]<artist(s)>'), /^\s*(?:(.*?)\s*:+\s*)?(.+?)\:?(?:\s*,)?\s*$/, [2, 1]);
  262.   addPreset(++presetIndex, escapeHTML('<artist>[ / <assignment>]'), /^\s*(.+?)(?:\:|\s*\/+\s*(.*?))?(?:\s*,)?\s*$/);
  263.   addPreset(++presetIndex, escapeHTML('<artist>[; <assignment>]'), /^\s*(.+?)(?:\:|\s*;\s*(.*?))?(?:\s*,)?\s*$/);
  264.   addPreset(++presetIndex, escapeHTML('[<assignment> / ]<artist(s)>'), /^\s*(?:(.*?)\s*\/+\s*)?(.+?)\:?(?:\s*,)?\s*$/, [2, 1]);
  265.   addPreset(++presetIndex, '<span style="font-family: initial;">From tracklist</span>', /^\s*\d+(?:\s*[\-\−\—\~\–\.\:]\s*|\s+)(.+?)\s*$/, []);
  266.   addPreset(999);
  267.   elem.slice(2).forEach(k => { elem[1].appendChild(k) });
  268.   elem[0].appendChild(elem[1]);
  269.   document.body.appendChild(elem[0]);
  270.   window.addEventListener("click", windowOnClick);
  271.   document.addEventListener('selectionchange', () => {
  272. 	var cs = window.getComputedStyle(modal);
  273. 	if (!btnAdd || window.getComputedStyle(modal).visibility != 'hidden') return;
  274. 	var sel = document.getSelection();
  275. 	ShowHideAddbutton();
  276.   });
  277. })();
  278.  
  279. function add_from_selection() {
  280.   sel = document.getSelection();
  281.   if (sel.isCollapsed || modal == null) return;
  282.   prefs.set('preset', 1);
  283.   prefs.set('custom_pattern', '^\\s*(.+?)(?:\\s*:+\\s*(.*?)|\\:)?\\s*$');
  284.   prefs.set('custom_pattern_order', 1);
  285.   setRadiosValue('parse-preset', prefs.preset);
  286.   customCtrls[0].value = prefs.custom_pattern;
  287.   setRadiosValue('parse-order', prefs.custom_pattern_order);
  288.   sel = sel.toString();
  289.   update_custom_ctrls();
  290.   modal.classList.add("show-modal");
  291. }
  292.  
  293. function do_parse(expr, flags = '') {
  294.   closeModal();
  295.   if (!sel) return;
  296.   var preset = getSelectedRadio('parse-preset');
  297.   if (preset == null) return;
  298.   prefs.preset = preset.value;
  299.   var order = preset.order;
  300.   var custom_parse_order = getSelectedRadio('parse-order');
  301.   var rx = preset.rx;
  302.   if (!rx && preset.value == 999 && custom_parse_order != null) {
  303. 	rx = [new RegExp(customCtrls[0].value)];
  304. 	order = custom_parse_order != null ?
  305. 	  custom_parse_order.value == 1 ? [1, 2] : custom_parse_order.value == 2 ? [2, 1] : null : [1, 2];
  306.   }
  307.   const guest_parser = /^(.*?)(?:\s+(?:feat(?:\.|uring)|with|meets)\s+(.*))?$/;
  308.   function extr_artists(kind) { return document.querySelectorAll('ul#artist_list > li.' + kind + ' > a') }
  309.   var artists = [
  310. 	extr_artists('artist_main'),
  311. 	extr_artists('artist_guest'),
  312. 	extr_artists('artists_remix'),
  313. 	extr_artists('artists_composers'),
  314. 	extr_artists('artists_conductors'),
  315. 	extr_artists('artists_dj'),
  316. 	extr_artists('artists_producer'),
  317.   ];
  318.   cleanupArtistsForm();
  319.   var addedartists = [];
  320.   for (var i = 0; i < artists.length; ++i) addedartists[i] = [];
  321.   artist_index = 0;
  322.   sel.split(/(?:\r?\n)+/).forEach(function(line) {
  323. 	if (!line || !line.trim()) return;
  324. 	if (line.search(/^\s*(?:Recorded|Mastered)\b/i) >= 0) return;
  325. 	line = line.replace(/\s+\(tracks?\b[^\(\)]+\)/, '').replace(/\s+\[tracks?\b[^\[\]]+\]/, '')
  326. 	let matches = /^\s*(?:Produced)[ \-\−\—\~\–]by (.+?)\s*$/.exec(line);
  327. 	if (matches != null) splitAmpersands(matches[1]).forEach(producer => { add_artist(producer, 7) });
  328. 	else if (rx instanceof RegExp && (matches = rx.exec(line)) != null) {
  329. 	  if (!Array.isArray(order) || order.length < 2) {
  330. 		let title = matches[1];
  331. 		if (/^(.+?) - /.test(title)) {
  332. 		  let artist = RegExp.$1;
  333. 		  if ((matches = featParsers.slice(0, 3).reduce((m, rx) => m || rx.exec(artist), null)) != null) {
  334. 			splitAmpersands(artist.slice(0, matches.index)).forEach(artist => { add_artist(artist, 1) });
  335. 			splitAmpersands(matches[1]).forEach(artist => { add_artist(artist, 2) });
  336. 		  } else splitAmpersands(artist).forEach(artist => { add_artist(artist, 1) });
  337. 		}
  338. 		if ((matches = featParsers.slice(1).reduce((m, rx) => m || rx.exec(title), null)) != null)
  339. 		  splitAmpersands(matches[1]).forEach(artist => { add_artist(artist, 2) });
  340. 	  } else if (matches[order[0]]) {
  341. 		let role = deduce_artist(matches[order[1]]);
  342. 	  	splitAmpersands(matches[order[0]]).forEach(artist => { add_artist(artist, role) });
  343. 	  } else splitAmpersands(matches[order[1]]).forEach(artist => { add_artist(artist, 2) });
  344. 	}
  345.   });
  346.   prefs.custom_pattern = customCtrls[0].value;
  347.   prefs.custom_pattern_order = custom_parse_order != null ? custom_parse_order.value : 1;
  348.   for (i in prefs) { if (typeof prefs[i] != 'function') GM_setValue(i, prefs[i]) }
  349.   return;
  350.  
  351.   function deduce_artist(str) {
  352. 	if (/\b(?:remix)/i.test(str)) return 3; // remixer
  353. 	if (/\b(?:composer|libretto|lyric\w*|written[ \-\−\—\~\–]by)\b/i.test(str)) return 4; // composer
  354. 	if (/\b(?:conduct|rirector\b)/i.test(str)) return 5; // conductor
  355. 	if (/\b(?:compiler\b)/i.test(str)) return 6; // compiler
  356. 	if (/\b(?:producer\b|produced[ \-\−\—\~\–]by\b)/i.test(str)) return 7; // producer
  357. 	return 2;
  358.   }
  359.  
  360.   function add_artist(name, type = 1) {
  361. 	if (!name || !type) return false;
  362. 	if (/^(?:(?:Special\s+)?Guests?):?$/i.test(name)) return false;
  363. 	// avoid dupes
  364. 	var n = name.toLowerCase();
  365. 	for (var i of artists[0]) { if (n == i.textContent.toLowerCase()) return false }
  366. 	if (type >= 2) for (i of artists[type - 1]) { if (n == i.textContent.toLowerCase()) return false }
  367. 	for (i of addedartists[0]) { if (n == i.toLowerCase()) return false }
  368. 	if (type >= 2) for (i of addedartists[type - 1]) { if (n == i.toLowerCase()) return false }
  369. 	var id = get_artist_field(artist_index);
  370. 	if (id == null) {
  371. 	  AddArtistField();
  372. 	  id = get_artist_field(artist_index);
  373. 	  if (id == null) return false;
  374. 	}
  375. 	id.value = name;
  376. 	id.nextElementSibling.value = type;
  377. 	addedartists[type - 1].push(name);
  378. 	++artist_index;
  379. 	return true;
  380.   }
  381. }
  382.  
  383. function get_artist_field(index) {
  384.   var id = document.getElementById('artist');
  385.   if (index <= 0) return id;
  386.   for (var i = 0; i < index; ++i) {
  387. 	do { id = id.nextElementSibling } while (id != null && (id.localName != 'input' || id.name != 'aliasname[]'));
  388. 	if (id == null) break;
  389.   }
  390.   return id;
  391. }
  392.  
  393. function closeModal() {
  394.   if (modal == null) return;
  395.   ShowHideAddbutton();
  396.   modal.classList.remove("show-modal");
  397. }
  398.  
  399. function windowOnClick(event) {
  400.   if (modal != null && event.target === modal) closeModal();
  401. }
  402.  
  403. function update_custom_ctrls() {
  404.   function en(elem) {
  405. 	if (elem == null || btnCustom == null) return;
  406. 	elem.disabled = !btnCustom.checked;
  407. 	elem.style.opacity = btnCustom.checked ? 1 : 0.5;
  408.   }
  409.   customCtrls.forEach(k => { en(k) });
  410. }
  411.  
  412. function getSelectedRadio(name) {
  413.   for (var i of document.getElementsByName(name)) { if (i.checked) return i }
  414.   return null;
  415. }
  416.  
  417. function setRadiosValue(name, val) {
  418.   for (var i of document.getElementsByName(name)) { if (i.value == val) i.checked = true }
  419. }
  420.  
  421. function ShowHideAddbutton() {
  422.   //btnAdd.style.visibility = document.getSelection().type == 'Range' ? 'visible' : 'hidden';
  423.   btnAdd.style.visibility = document.getSelection().isCollapsed ? 'hidden' : 'visible';
  424. }
  425.  
  426. function escapeHTML(string) {
  427.   var pre = document.createElement('pre');
  428.   var text = document.createTextNode(string);
  429.   pre.appendChild(text);
  430.   return pre.innerHTML;
  431. }
  432.  
  433. function cleanupArtistsForm() {
  434.   var id = get_artist_field(0);
  435.   do {
  436. 	id.value = null;
  437. 	id = id.nextElementSibling;
  438. 	if (id == null) break;
  439. 	id.value = 1;
  440. 	do { id = id.nextElementSibling } while (id != null && (id.localName != 'input' || id.name != 'aliasname[]'));
  441.   } while (id != null);
  442. }
  443.  
  444. function addTooltip(elem, text) {
  445.   if (elem == null) return;
  446.   elem.classList.add('tooltip');
  447.   var tt = document.createElement('span');
  448.   tt.className = 'tooltiptext';
  449.   tt.textContent = text;
  450.   elem.appendChild(tt);
  451. }
  452.  
  453. function twoOrMore(artist) { return artist.length >= 2 && !pseudoArtistParsers.some(rx => rx.test(artist)) };
  454. function looksLikeTrueName(artist, index = 0) {
  455.   return twoOrMore(artist)
  456. 	&& (index == 0 || !/^(?:his\b|her\b|Friends$|Strings$)/i.test(artist))
  457. 	&& artist.split(/\s+/).length >= 2
  458. 	&& !pseudoArtistParsers.some(rx => rx.test(artist)) || getSiteArtist(artist);
  459. }
  460.  
  461. function strip(art) {
  462.   return artistStrips.reduce(function(acc, rx, ndx) {
  463. 	return ndx != 1 || rx.test(acc)/* && !notMonospaced(RegExp.$1)*/ ? acc.replace(rx, '') : acc;
  464.   }, art);
  465. }
  466.  
  467. function getSiteArtist(artist) {
  468.   //if (isOPS) return undefined;
  469.   if (!artist || notSiteArtistsCache.includesCaseless(artist)) return null;
  470.   var key = Object.keys(siteArtistsCache).find(it => it.toLowerCase() == artist.toLowerCase());
  471.   if (key) return siteArtistsCache[key];
  472.   var now = Date.now();
  473.   try { var apiTimeFrame = JSON.parse(window.localStorage[siteApiTimeframeStorageKey]) } catch(e) { apiTimeFrame = {} }
  474.   if (!apiTimeFrame.timeStamp || now > apiTimeFrame.timeStamp + gazelleApiFrame) {
  475. 	apiTimeFrame.timeStamp = now;
  476. 	apiTimeFrame.requestCounter = 1;
  477.   } else ++apiTimeFrame.requestCounter;
  478.   window.localStorage[siteApiTimeframeStorageKey] = JSON.stringify(apiTimeFrame);
  479.   if (apiTimeFrame.requestCounter > 5) {
  480. 	console.debug('getSiteArtist() request exceeding AJAX API time frame: /ajax.php?action=artist&artistname="' +
  481. 		artist + '" (' + apiTimeFrame.requestCounter + ')');
  482. 	++ajaxRejects;
  483. 	return undefined;
  484.   }
  485.   try {
  486. 	var requestUrl = '/ajax.php?action=artist&artistname=' + encodeURIComponent(artist);
  487. 	xhr.open('GET', requestUrl, false);
  488. 	//if (isRED && prefs.redacted_api_key) xhr.setRequestHeader('Authorization', prefs.redacted_api_key);
  489. 	xhr.send();
  490. 	if (xhr.status == 404) {
  491. 	  notSiteArtistsCache.pushUniqueCaseless(artist);
  492. 	  return null;
  493. 	}
  494. 	if (xhr.readyState != XMLHttpRequest.DONE || xhr.status < 200 || xhr.status >= 400) {
  495. 	  console.warn('getSiteArtist("' + artist + '") error:', xhr, 'url:', document.location.origin + requestUrl);
  496. 	  return undefined; // error
  497. 	}
  498. 	let response = JSON.parse(xhr.responseText);
  499. 	if (response.status != 'success') {
  500. 	  notSiteArtistsCache.pushUniqueCaseless(artist);
  501. 	  return null;
  502. 	}
  503. 	siteArtistsCache[artist] = response.response;
  504. 	if (prefs.diag_mode) console.log('getSiteArtist("' + artist + '") success:', siteArtistsCache[artist]);
  505. 	return (siteArtistsCache[artist]);
  506.   } catch(e) {
  507. 	console.error('UA::getSiteArtist("' + artist + '"):', e, xhr);
  508. 	return undefined;
  509.   }
  510. }
  511.  
  512. function splitArtists(str, parsers = multiArtistParsers) {
  513.   var result = [str];
  514.   parsers.forEach(function(parser) {
  515. 	for (var i = result.length; i > 0; --i) {
  516. 	  var j = result[i - 1].split(parser).map(strip);
  517. 	  if (j.length > 1 && j.every(twoOrMore) && !j.some(artist => pseudoArtistParsers.some(rx => rx.test(artist)))
  518. 		  && !getSiteArtist(result[i - 1])) result.splice(i - 1, 1, ...j);
  519. 	}
  520.   });
  521.   return result;
  522. }
  523.  
  524. function splitAmpersands(artists) {
  525.   if (typeof artists == 'string') var result = splitArtists(artists);
  526.   else if (Array.isArray(artists)) result = Array.from(artists); else return [];
  527.   ampersandParsers.forEach(function(ampersandParser) {
  528. 	for (let i = result.length; i > 0; --i) {
  529. 	  let j = result[i - 1].split(ampersandParser).map(strip);
  530. 	  if (j.length <= 1 || !j.every(looksLikeTrueName) || getSiteArtist(result[i - 1])) continue;
  531. 	  result.splice(i - 1, 1, ...j.filter(function(artist) {
  532. 		return !result.includesCaseless(artist) && !pseudoArtistParsers.some(rx => rx.test(artist));
  533. 	  }));
  534. 	}
  535.   });
  536.   return result;
  537. }