Issue: keyword usage not works for Cyrillic keywords/content #721

CHANGELOG.md

@@ -10,6 +10,7 @@
 
 ### 🐞 Fixes
 
+- [#721](https://github.com/estruyf/vscode-front-matter/issues/721): Fix keywords regex to support unicode characters
 - [#725](https://github.com/estruyf/vscode-front-matter/issues/725): Fix for opening menu of pinned items
 
 ## [9.4.0] - 2023-12-12 - [Release notes](https://beta.frontmatter.codes/updates/v9.4.0)

src/panelWebView/components/SeoKeywordInfo.tsx

@@ -28,7 +28,7 @@ const SeoKeywordInfo: React.FunctionComponent<ISeoKeywordInfoProps> = ({
       return null;
     }
 
-    const pattern = new RegExp('\\b' + keyword.toLowerCase() + '\\b', 'ig');
+    const pattern = new RegExp(`(^${keyword.toLowerCase()}(?=\\s|$))|(\\s${keyword.toLowerCase()}(?=\\s|$))`, 'ig');
     const count = (content.match(pattern) || []).length;
     const density = (count / wordCount) * 100;
     const densityTitle = l10n.t(LocalizationKey.panelSeoKeywordInfoDensity, `${density.toFixed(2)}%`);