feat: enhance FlexSearch encoding for CJK support (#553)

- Added support for CJK (Chinese, Japanese, Korean) languages in FlexSearch encoding.
- Introduced `isCJK` function to detect language and select appropriate encoding method.
- Implemented `encodeCJK` and `encodeDefault` functions for different tokenization strategies.

assets/js/flexsearch.js

@@ -195,8 +195,19 @@ document.addEventListener("DOMContentLoaded", function () {
    */
   async function preloadIndex() {
     const tokenize = '{{- site.Params.search.flexsearch.tokenize | default  "forward" -}}';
+
+    const isCJK = () => {
+      const lang = document.documentElement.lang || "en";
+      return lang.startsWith("zh") || lang.startsWith("ja") || lang.startsWith("ko");
+    }
+
+    const encodeCJK = (str) => str.replace(/[\x00-\x7F]/g, "").split("");
+    const encodeDefault = (str) => (""+str).toLocaleLowerCase().split(/[\p{Z}\p{S}\p{P}\p{C}]+/u);
+    const encodeFunction = isCJK() ? encodeCJK : encodeDefault;
+
     window.pageIndex = new FlexSearch.Document({
       tokenize,
+      encode: encodeFunction,
       cache: 100,
       document: {
         id: 'id',
@@ -207,6 +218,7 @@ document.addEventListener("DOMContentLoaded", function () {
 
     window.sectionIndex = new FlexSearch.Document({
       tokenize,
+      encode: encodeFunction,
       cache: 100,
       document: {
         id: 'id',

exampleSite/content/docs/advanced/customization.md

@@ -195,7 +195,7 @@ You can add extra section in the footer by creating a file `layouts/partials/cus
 The added section will be added before the copyright section in the footer.
 You can use [HTML](https://developer.mozilla.org/en-US/docs/Web/HTML) and [Hugo template syntax](https://gohugo.io/templates/) to add your own content.
 
-Hugo variables available in the footer section are: `.switchesVisible` and `.copyrightVisible`.
+Hugo variables available in the footer section are: `.switchesVisible` and `.displayCopyright`.
 
 ## Custom Layouts
 

layouts/shortcodes/card.html

@@ -15,18 +15,23 @@
 {{- $options := .Get "options" | default "800x webp q80" -}}
 {{- $process := .Get "process" | default (printf "%s %s" $method $options) -}}
 
+{{- if and $image (not (urls.Parse $image).Scheme) -}}
   {{- with or (.Page.Resources.Get $image) (resources.Get $image) -}}
+    {{/* .Process does not work on svgs */}}
+    {{- if (not (eq .MediaType.SubType "svg")) -}}
       {{/* Retrieve the $image resource from local or global resources */}}
       {{- $processed := .Process $process -}}
       {{- $width = $processed.Width -}}
       {{- $height = $processed.Height -}}
       {{- $image = $processed.RelPermalink -}}
+    {{- end -}}
   {{ else }}
     {{/* Otherwise, use relative link of the image */}}
     {{- if hasPrefix $image "/" -}}
       {{- $image = relURL (strings.TrimPrefix "/" $image) -}}
     {{- end -}}
   {{- end -}}
+{{- end -}}
 
 {{- partial "shortcodes/card" (dict
   "page"        .Page