update supplement renders

docs/libs/gitbook-2.6.7/css/plugin-bookdown.css

@@ -97,9 +97,3 @@ div.proof>*:last-child:after {
 .header-section-number {
   padding-right: .5em;
 }
-#header .multi-author {
-  margin: 0.5em 0 -0.5em 0;
-}
-#header .date {
-  margin-top: 1.5em;
-}

docs/libs/gitbook-2.6.7/js/plugin-search.js

@@ -1,24 +1,9 @@
 gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
     var index = null;
-    var fuse = null;
-    var _search = {engine: 'lunr', opts: {}};
     var $searchInput, $searchLabel, $searchForm;
     var $highlighted = [], hi, hiOpts = { className: 'search-highlight' };
     var collapse = false, toc_visible = [];
 
-    function init(config) {
-        // Instantiate search settings
-        _search = gitbook.storage.get("search", {
-            engine: config.search.engine || 'lunr',
-            opts: config.search.options || {},
-        });
-    };
-
-    // Save current search settings
-    function saveSearchSettings() {
-        gitbook.storage.set("search", _search);
-    }
-
     // Use a specific index
     function loadIndex(data) {
         // [Yihui] In bookdown, I use a character matrix to store the chapter
@@ -29,36 +14,18 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
         // lunr cannot handle non-English text very well, e.g. the default
         // tokenizer cannot deal with Chinese text, so we may want to replace
         // lunr with a dumb simple text matching approach.
-        if (_search.engine === 'lunr') {
-          index = lunr(function () {
-            this.ref('url');
-            this.field('title', { boost: 10 });
-            this.field('body');
-          });
-          data.map(function(item) {
-            index.add({
-              url: item[0],
-              title: item[1],
-              body: item[2]
-            });
+        index = lunr(function () {
+          this.ref('url');
+          this.field('title', { boost: 10 });
+          this.field('body');
+        });
+        data.map(function(item) {
+          index.add({
+            url: item[0],
+            title: item[1],
+            body: item[2]
           });
-          return;
-        }
-        fuse = new Fuse(data.map((_data => {
-            return {
-                url: _data[0],
-                title: _data[1],
-                body: _data[2]
-            };
-        })), Object.assign(
-            {
-                includeScore: true,
-                threshold: 0.1,
-                ignoreLocation: true,
-                keys: ["title", "body"]
-            },
-            _search.opts
-        ));
+        });
     }
 
     // Fetch the search index
@@ -69,33 +36,20 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
 
     // Search for a term and return results
     function search(q) {
-        let results = [];
-        switch (_search.engine) {
-            case 'fuse':
-                if (!fuse) return;
-                results = fuse.search(q).map(function(result) {
-                    var parts = result.item.url.split('#');
-                    return {
-                        path: parts[0],
-                        hash: parts[1]
-                    };
-                });
-                break;
-            case 'lunr':
-            default:
-                if (!index) return;
-                results = _.chain(index.search(q)).map(function(result) {
-                    var parts = result.ref.split("#");
-                    return {
-                        path: parts[0],
-                        hash: parts[1]
-                    };
-                })
-                .value();
-        }
+        if (!index) return;
+
+        var results = _.chain(index.search(q))
+        .map(function(result) {
+            var parts = result.ref.split("#");
+            return {
+                path: parts[0],
+                hash: parts[1]
+            };
+        })
+        .value();
 
         // [Yihui] Highlight the search keyword on current page
-        $highlighted = $('.page-inner')
+        $highlighted = results.length === 0 ? [] : $('.page-inner')
           .unhighlight(hiOpts).highlight(q, hiOpts).find('span.search-highlight');
         scrollToHighlighted(0);
 
@@ -218,7 +172,6 @@ gitbook.require(["gitbook", "lodash", "jQuery"], function(gitbook, _, $) {
     gitbook.events.bind("start", function(e, config) {
         // [Yihui] disable search
         if (config.search === false) return;
-        init(config);
         collapse = !config.toc || config.toc.collapse === 'section' ||
           config.toc.collapse === 'subsection';