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Modernize docs/assets/js/search.js (#10621)
- reformated file with eslint's --fix - did some minor rule adjustments - removed unneccesary console debug - fixed a typo
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silverwind
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d6657644a9
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@ -36,6 +36,8 @@ rules:
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max-len: [0]
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newline-per-chained-call: [0]
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no-alert: [0]
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no-cond-assign: [2, except-parens]
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no-console: [1, {allow: [info, warn, error]}]
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no-continue: [0]
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no-mixed-operators: [0]
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no-multi-assign: [0]
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@ -1,166 +1,164 @@
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/* global Fuse, Mark */
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function ready(fn) {
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if (document.readyState != 'loading') {
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fn();
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} else {
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document.addEventListener('DOMContentLoaded', fn);
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}
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if (document.readyState !== 'loading') {
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fn();
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} else {
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document.addEventListener('DOMContentLoaded', fn);
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}
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}
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ready(doSearch);
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const summaryInclude = 60;
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const fuseOptions = {
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shouldSort: true,
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includeMatches: true,
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matchAllTokens: true,
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threshold: 0.0, // for parsing diacritics
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tokenize: true,
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location: 0,
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distance: 100,
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maxPatternLength: 32,
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minMatchCharLength: 1,
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keys: [{
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name: "title",
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weight: 0.8
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},
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{
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name: "contents",
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weight: 0.5
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},
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{
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name: "tags",
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weight: 0.3
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},
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{
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name: "categories",
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weight: 0.3
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}
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]
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shouldSort: true,
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includeMatches: true,
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matchAllTokens: true,
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threshold: 0.0, // for parsing diacritics
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tokenize: true,
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location: 0,
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distance: 100,
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maxPatternLength: 32,
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minMatchCharLength: 1,
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keys: [{
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name: 'title',
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weight: 0.8
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},
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{
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name: 'contents',
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weight: 0.5
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},
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{
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name: 'tags',
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weight: 0.3
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},
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{
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name: 'categories',
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weight: 0.3
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}
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]
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};
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function param(name) {
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return decodeURIComponent((location.search.split(name + '=')[1] || '').split('&')[0]).replace(/\+/g, ' ');
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return decodeURIComponent((window.location.search.split(`${name}=`)[1] || '').split('&')[0]).replace(/\+/g, ' ');
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}
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let searchQuery = param("s");
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const searchQuery = param('s');
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function doSearch() {
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if (searchQuery) {
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document.getElementById("search-query").value = searchQuery;
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executeSearch(searchQuery);
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} else {
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const para = document.createElement("P");
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para.innerText = "Please enter a word or phrase above";
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document.getElementById("search-results").appendChild(para);
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}
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if (searchQuery) {
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document.getElementById('search-query').value = searchQuery;
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executeSearch(searchQuery);
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} else {
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const para = document.createElement('P');
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para.innerText = 'Please enter a word or phrase above';
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document.getElementById('search-results').appendChild(para);
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}
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}
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function getJSON(url, fn) {
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const request = new XMLHttpRequest();
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request.open('GET', url, true);
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request.onload = function () {
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if (request.status >= 200 && request.status < 400) {
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const data = JSON.parse(request.responseText);
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fn(data);
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} else {
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console.log("Target reached on " + url + " with error " + request.status);
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}
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};
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request.onerror = function () {
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console.log("Connection error " + request.status);
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};
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request.send();
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const request = new XMLHttpRequest();
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request.open('GET', url, true);
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request.onload = function () {
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if (request.status >= 200 && request.status < 400) {
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const data = JSON.parse(request.responseText);
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fn(data);
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} else {
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console.error(`Target reached on ${url} with error ${request.status}`);
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}
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};
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request.onerror = function () {
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console.error(`Connection error ${request.status}`);
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};
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request.send();
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}
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function executeSearch(searchQuery) {
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getJSON("/" + document.LANG + "/index.json", function (data) {
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const pages = data;
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const fuse = new Fuse(pages, fuseOptions);
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const result = fuse.search(searchQuery);
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console.log({
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"matches": result
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});
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document.getElementById("search-results").innerHTML = "";
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if (result.length > 0) {
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populateResults(result);
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} else {
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const para = document.createElement("P");
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para.innerText = "No matches found";
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document.getElementById("search-results").appendChild(para);
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}
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});
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getJSON(`/${document.LANG}/index.json`, (data) => {
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const pages = data;
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const fuse = new Fuse(pages, fuseOptions);
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const result = fuse.search(searchQuery);
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document.getElementById('search-results').innerHTML = '';
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if (result.length > 0) {
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populateResults(result);
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} else {
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const para = document.createElement('P');
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para.innerText = 'No matches found';
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document.getElementById('search-results').appendChild(para);
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}
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});
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}
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function populateResults(result) {
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result.forEach(function (value, key) {
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const content = value.item.contents;
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let snippet = "";
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const snippetHighlights = [];
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if (fuseOptions.tokenize) {
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snippetHighlights.push(searchQuery);
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value.matches.forEach(function (mvalue) {
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if (mvalue.key === "tags" || mvalue.key === "categories") {
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snippetHighlights.push(mvalue.value);
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} else if (mvalue.key === "contents") {
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const ind = content.toLowerCase().indexOf(searchQuery.toLowerCase());
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const start = ind - summaryInclude > 0 ? ind - summaryInclude : 0;
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const end = ind + searchQuery.length + summaryInclude < content.length ? ind + searchQuery.length + summaryInclude : content.length;
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snippet += content.substring(start, end);
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if (ind > -1) {
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snippetHighlights.push(content.substring(ind, ind + searchQuery.length))
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} else {
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snippetHighlights.push(mvalue.value.substring(mvalue.indices[0][0], mvalue.indices[0][1] - mvalue.indices[0][0] + 1));
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}
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}
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});
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result.forEach((value, key) => {
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const content = value.item.contents;
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let snippet = '';
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const snippetHighlights = [];
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if (fuseOptions.tokenize) {
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snippetHighlights.push(searchQuery);
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value.matches.forEach((mvalue) => {
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if (mvalue.key === 'tags' || mvalue.key === 'categories') {
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snippetHighlights.push(mvalue.value);
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} else if (mvalue.key === 'contents') {
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const ind = content.toLowerCase().indexOf(searchQuery.toLowerCase());
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const start = ind - summaryInclude > 0 ? ind - summaryInclude : 0;
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const end = ind + searchQuery.length + summaryInclude < content.length ? ind + searchQuery.length + summaryInclude : content.length;
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snippet += content.substring(start, end);
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if (ind > -1) {
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snippetHighlights.push(content.substring(ind, ind + searchQuery.length));
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} else {
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snippetHighlights.push(mvalue.value.substring(mvalue.indices[0][0], mvalue.indices[0][1] - mvalue.indices[0][0] + 1));
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}
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}
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});
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}
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if (snippet.length < 1) {
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snippet += content.substring(0, summaryInclude * 2);
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}
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//pull template from hugo templarte definition
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const templateDefinition = document.getElementById("search-result-template").innerHTML;
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//replace values
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const output = render(templateDefinition, {
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key: key,
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title: value.item.title,
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link: value.item.permalink,
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tags: value.item.tags,
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categories: value.item.categories,
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snippet: snippet
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});
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document.getElementById("search-results").appendChild(htmlToElement(output));
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snippetHighlights.forEach(function (snipvalue) {
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new Mark(document.getElementById("summary-" + key)).mark(snipvalue);
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});
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if (snippet.length < 1) {
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snippet += content.substring(0, summaryInclude * 2);
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}
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// pull template from hugo template definition
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const templateDefinition = document.getElementById('search-result-template').innerHTML;
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// replace values
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const output = render(templateDefinition, {
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key,
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title: value.item.title,
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link: value.item.permalink,
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tags: value.item.tags,
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categories: value.item.categories,
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snippet
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});
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document.getElementById('search-results').appendChild(htmlToElement(output));
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snippetHighlights.forEach((snipvalue) => {
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new Mark(document.getElementById(`summary-${key}`)).mark(snipvalue);
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});
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});
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}
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function render(templateString, data) {
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let conditionalMatches, copy;
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const conditionalPattern = /\$\{\s*isset ([a-zA-Z]*) \s*\}(.*)\$\{\s*end\s*}/g;
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//since loop below depends on re.lastInxdex, we use a copy to capture any manipulations whilst inside the loop
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copy = templateString;
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while ((conditionalMatches = conditionalPattern.exec(templateString)) !== null) {
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if (data[conditionalMatches[1]]) {
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//valid key, remove conditionals, leave content.
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copy = copy.replace(conditionalMatches[0], conditionalMatches[2]);
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} else {
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//not valid, remove entire section
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copy = copy.replace(conditionalMatches[0], '');
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}
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let conditionalMatches, copy;
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const conditionalPattern = /\$\{\s*isset ([a-zA-Z]*) \s*\}(.*)\$\{\s*end\s*}/g;
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// since loop below depends on re.lastInxdex, we use a copy to capture any manipulations whilst inside the loop
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copy = templateString;
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while ((conditionalMatches = conditionalPattern.exec(templateString)) !== null) {
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if (data[conditionalMatches[1]]) {
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// valid key, remove conditionals, leave content.
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copy = copy.replace(conditionalMatches[0], conditionalMatches[2]);
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} else {
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// not valid, remove entire section
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copy = copy.replace(conditionalMatches[0], '');
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}
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templateString = copy;
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//now any conditionals removed we can do simple substitution
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let key, find, re;
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for (key in data) {
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find = '\\$\\{\\s*' + key + '\\s*\\}';
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re = new RegExp(find, 'g');
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templateString = templateString.replace(re, data[key]);
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}
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return templateString;
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}
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templateString = copy;
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// now any conditionals removed we can do simple substitution
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let key, find, re;
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for (key of Object.keys(data)) {
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find = `\\$\\{\\s*${key}\\s*\\}`;
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re = new RegExp(find, 'g');
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templateString = templateString.replace(re, data[key]);
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}
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return templateString;
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}
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/**
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@ -169,8 +167,8 @@ function render(templateString, data) {
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* @return {Element}
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*/
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function htmlToElement(html) {
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const template = document.createElement('template');
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html = html.trim(); // Never return a text node of whitespace as the result
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template.innerHTML = html;
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return template.content.firstChild;
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const template = document.createElement('template');
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html = html.trim(); // Never return a text node of whitespace as the result
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template.innerHTML = html;
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return template.content.firstChild;
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}
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