feat: support text conversion between simplifed and traditional Chinese, closes #2508 (#2520)

.github/workflows/pull-request.yml

@@ -66,7 +66,7 @@ jobs:
       - name: install Dependencies
         working-directory: apps/readest-app
         run: |
-          pnpm install && pnpm setup-pdfjs
+          pnpm install && pnpm setup-vendors
 
       - name: run tests
         working-directory: apps/readest-app

.github/workflows/release.yml

@@ -180,8 +180,8 @@ jobs:
       - name: install dependencies
         run: pnpm install
 
-      - name: copy pdfjs-dist to public directory
-        run: pnpm --filter @readest/readest-app setup-pdfjs
+      - name: copy pdfjs-dist and simplecc-dist to public directory
+        run: pnpm --filter @readest/readest-app setup-vendors
 
       - name: install Rust stable
         uses: dtolnay/rust-toolchain@stable

.gitmodules

@@ -7,3 +7,6 @@
 [submodule "packages/tauri-plugins"]
 	path = packages/tauri-plugins
 	url = https://github.com/readest/tauri-plugins-workspace.git
+[submodule "packages/simplecc-wasm"]
+	path = packages/simplecc-wasm
+	url = https://github.com/readest/simplecc-wasm.git

README.md

@@ -145,8 +145,8 @@ cd readest
 # might need to rerun this when code is updated
 git submodule update --init --recursive
 pnpm install
-# copy pdfjs-dist to Next.js public directory
-pnpm --filter @readest/readest-app setup-pdfjs
+# copy vendors dist libs to public directory
+pnpm --filter @readest/readest-app setup-vendors
 ```
 
 ### 3. Verify Dependencies Installation

apps/readest-app/package.json

@@ -14,14 +14,17 @@
     "lint": "eslint .",
     "test": "dotenv -e .env -e .env.test.local vitest",
     "tauri": "tauri",
-    "prepare-public-vendor": "mkdirp ./public/vendor/pdfjs",
+    "prepare-public-vendor": "mkdirp ./public/vendor/pdfjs ./public/vendor/simplecc",
     "copy-pdfjs-js": "cpx \"../../packages/foliate-js/node_modules/pdfjs-dist/legacy/build/{pdf.worker.min.mjs,pdf.mjs,pdf.d.mts}\" ./public/vendor/pdfjs",
     "copy-pdfjs-fonts": "cpx \"../../packages/foliate-js/node_modules/pdfjs-dist/{cmaps,standard_fonts}/*\" ./public/vendor/pdfjs",
     "copy-flatten-pdfjs-annotation-layer-css": "npx postcss \"../../packages/foliate-js/vendor/pdfjs/annotation_layer_builder.css\" --no-map -u postcss-nested > ./public/vendor/pdfjs/annotation_layer_builder.css",
     "copy-flatten-pdfjs-text-layer-css": "npx postcss \"../../packages/foliate-js/vendor/pdfjs/text_layer_builder.css\" --no-map -u postcss-nested > ./public/vendor/pdfjs/text_layer_builder.css",
     "copy-flatten-pdfjs-css": "pnpm copy-flatten-pdfjs-annotation-layer-css && pnpm copy-flatten-pdfjs-text-layer-css",
     "copy-pdfjs": "pnpm copy-pdfjs-js && pnpm copy-pdfjs-fonts && pnpm copy-flatten-pdfjs-css",
+    "copy-simplecc": "cpx \"../../packages/simplecc-wasm/dist/web/*\" ./public/vendor/simplecc",
     "setup-pdfjs": "pnpm prepare-public-vendor && pnpm copy-pdfjs",
+    "setup-simplecc": "pnpm prepare-public-vendor && pnpm copy-simplecc",
+    "setup-vendors": "pnpm setup-pdfjs && pnpm setup-simplecc",
     "build-win-x64": "dotenv -e .env.tauri.local -- tauri build --target i686-pc-windows-msvc --bundles nsis",
     "build-win-arm64": "dotenv -e .env.tauri.local -- tauri build --target aarch64-pc-windows-msvc --bundles nsis",
     "build-linux-x64": "dotenv -e .env.tauri.local -- tauri build --target x86_64-unknown-linux-gnu --bundles appimage",

apps/readest-app/public/locales/ar/translation.json

@@ -675,5 +675,16 @@
   "Unable to open book": "غير قادر على فتح الكتاب",
   "Punctuation": "علامات الترقيم",
   "Replace Quotation Marks": "استبدال علامات الاقتباس",
-  "Enabled only in vertical layout.": "مفعل فقط في التخطيط الرأسي."
+  "Enabled only in vertical layout.": "مفعل فقط في التخطيط الرأسي.",
+  "No Conversion": "لا تحويل",
+  "Simplified to Traditional": "من المبسّط إلى التقليدي",
+  "Traditional to Simplified": "من التقليدي إلى المبسّط",
+  "Simplified to Traditional (Taiwan)": "مبسّط → تقليدي (تايوان)",
+  "Simplified to Traditional (Hong Kong)": "مبسّط → تقليدي (هونغ كونغ)",
+  "Simplified to Traditional (Taiwan), with phrases": "مبسّط → تقليدي (تايوان • عبارات)",
+  "Traditional (Taiwan) to Simplified": "تقليدي (تايوان) → مبسّط",
+  "Traditional (Hong Kong) to Simplified": "تقليدي (هونغ كونغ) → مبسّط",
+  "Traditional (Taiwan) to Simplified, with phrases": "تقليدي (تايوان • عبارات) → مبسّط",
+  "Convert Simplified and Traditional Chinese": "تحويل المبسّط/التقليدي",
+  "Convert Mode": "وضع التحويل"
 }

apps/readest-app/public/locales/bn/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "বই খুলতে অক্ষম",
   "Punctuation": "বিরামচিহ্ন",
   "Replace Quotation Marks": "উদ্ধৃতি চিহ্ন প্রতিস্থাপন করুন",
-  "Enabled only in vertical layout.": "শুধুমাত্র উল্লম্ব বিন্যাসে সক্রিয়।"
+  "Enabled only in vertical layout.": "শুধুমাত্র উল্লম্ব বিন্যাসে সক্রিয়।",
+  "No Conversion": "রূপান্তর নয়",
+  "Simplified to Traditional": "সরল → প্রথাগত",
+  "Traditional to Simplified": "প্রথাগত → সরল",
+  "Simplified to Traditional (Taiwan)": "সরল → প্রথাগত (তাইওয়ান)",
+  "Simplified to Traditional (Hong Kong)": "সরল → প্রথাগত (হংকং)",
+  "Simplified to Traditional (Taiwan), with phrases": "সরল → প্রথাগত (তাইওয়ান • বাক্য)",
+  "Traditional (Taiwan) to Simplified": "প্রথাগত (তাইওয়ান) → সরল",
+  "Traditional (Hong Kong) to Simplified": "প্রথাগত (হংকং) → সরল",
+  "Traditional (Taiwan) to Simplified, with phrases": "প্রথাগত (তাইওয়ান • বাক্য) → সরল",
+  "Convert Simplified and Traditional Chinese": "সরল/প্রথাগত রূপান্তর",
+  "Convert Mode": "রূপান্তর মোড"
 }

apps/readest-app/public/locales/bo/translation.json

@@ -655,5 +655,16 @@
   "Unable to open book": "དེབ་ཀྱི་སྤྱོད་བྱས་མ་ཐུབ།",
   "Punctuation": "ཚིག་གྲུབ།",
   "Replace Quotation Marks": "འདྲེན་འབྲེལ་མཐུད་ཐིག་བརྗེ་བ།",
-  "Enabled only in vertical layout.": "གཡས་སྒྲིག་ནང་མིང་བརྗེ་བ།"
+  "Enabled only in vertical layout.": "གཡས་སྒྲིག་ནང་མིང་བརྗེ་བ།",
+  "No Conversion": "བསྒྱུར་བཤེར་མེད་",
+  "Simplified to Traditional": "སྟོང་བཟོས → སྲོལ་རྒྱུན",
+  "Traditional to Simplified": "སྲོལ་རྒྱུན → སྟོང་བཟོས",
+  "Simplified to Traditional (Taiwan)": "སྟོང་བཟོས → སྲོལ་རྒྱུན (ཏའི་ཝན)",
+  "Simplified to Traditional (Hong Kong)": "སྟོང་བཟོས → སྲོལ་རྒྱུན (ཧོང་ཀོང)",
+  "Simplified to Traditional (Taiwan), with phrases": "སྟོང་བཟོས → སྲོལ་རྒྱུན (ཏའི་ཝན • ཚིག་ཕྲེང)",
+  "Traditional (Taiwan) to Simplified": "སྲོལ་རྒྱུན (ཏའི་ཝན) → སྟོང་བཟོས",
+  "Traditional (Hong Kong) to Simplified": "སྲོལ་རྒྱུན (ཧོང་ཀོང) → སྟོང་བཟོས",
+  "Traditional (Taiwan) to Simplified, with phrases": "སྲོལ་རྒྱུན (ཏའི་ཝན • ཚིག་ཕྲེང) → སྟོང་བཟོས",
+  "Convert Simplified and Traditional Chinese": "རྒྱ་ཡིག སྟོང་བཟོས/སྲོལ་རྒྱུན བསྒྱུར་བ",
+  "Convert Mode": "བསྒྱུར་བའི་རྣམ་པ"
 }

apps/readest-app/public/locales/de/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "Buch kann nicht geöffnet werden",
   "Punctuation": "Interpunktion",
   "Replace Quotation Marks": "Anführungszeichen ersetzen",
-  "Enabled only in vertical layout.": "Nur im vertikalen Layout aktiviert."
+  "Enabled only in vertical layout.": "Nur im vertikalen Layout aktiviert.",
+  "No Conversion": "Keine Konvertierung",
+  "Simplified to Traditional": "Vereinfacht → Traditionell",
+  "Traditional to Simplified": "Traditionell → Vereinfacht",
+  "Simplified to Traditional (Taiwan)": "Vereinfacht → Traditionell (Taiwan)",
+  "Simplified to Traditional (Hong Kong)": "Vereinfacht → Traditionell (Hongkong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Vereinfacht → Traditionell (Taiwan • Phrasen)",
+  "Traditional (Taiwan) to Simplified": "Traditionell (Taiwan) → Vereinfacht",
+  "Traditional (Hong Kong) to Simplified": "Traditionell (Hongkong) → Vereinfacht",
+  "Traditional (Taiwan) to Simplified, with phrases": "Traditionell (Taiwan • Phrasen) → Vereinfacht",
+  "Convert Simplified and Traditional Chinese": "Vereinfach./Traditionell konvertieren",
+  "Convert Mode": "Konvertierungsmodus"
 }

apps/readest-app/public/locales/el/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "Αδύνατη η άνοιγμα του βιβλίου",
   "Punctuation": "Στίξη",
   "Replace Quotation Marks": "Αντικατάσταση εισαγωγικών",
-  "Enabled only in vertical layout.": "Ενεργοποιημένο μόνο σε κάθετη διάταξη."
+  "Enabled only in vertical layout.": "Ενεργοποιημένο μόνο σε κάθετη διάταξη.",
+  "No Conversion": "Χωρίς μετατροπή",
+  "Simplified to Traditional": "Απλοπ. → Παραδ.",
+  "Traditional to Simplified": "Παραδ. → Απλοπ.",
+  "Simplified to Traditional (Taiwan)": "Απλοπ. → Παραδ. (Ταϊβάν)",
+  "Simplified to Traditional (Hong Kong)": "Απλοπ. → Παραδ. (Χονγκ Κονγκ)",
+  "Simplified to Traditional (Taiwan), with phrases": "Απλοπ. → Παραδ. (Ταϊβάν • φράσεις)",
+  "Traditional (Taiwan) to Simplified": "Παραδ. (Ταϊβάν) → Απλοπ.",
+  "Traditional (Hong Kong) to Simplified": "Παραδ. (Χονγκ Κονγκ) → Απλοπ.",
+  "Traditional (Taiwan) to Simplified, with phrases": "Παραδ. (Ταϊβάν • φράσεις) → Απλοπ.",
+  "Convert Simplified and Traditional Chinese": "Μετατροπή Απλοπ./Παραδ. Κινέζικων",
+  "Convert Mode": "Λειτουργία μετατροπής"
 }

apps/readest-app/public/locales/es/translation.json

@@ -663,5 +663,16 @@
   "Unable to open book": "No se puede abrir el libro",
   "Punctuation": "Signos de puntuación",
   "Replace Quotation Marks": "Reemplazar comillas",
-  "Enabled only in vertical layout.": "Habilitado solo en diseño vertical."
+  "Enabled only in vertical layout.": "Habilitado solo en diseño vertical.",
+  "No Conversion": "Sin conversión",
+  "Simplified to Traditional": "Simpl. → Trad.",
+  "Traditional to Simplified": "Trad. → Simpl.",
+  "Simplified to Traditional (Taiwán)": "Simpl. → Trad. (Taiwán)",
+  "Simplified to Traditional (Hong Kong)": "Simpl. → Trad. (Hong Kong)",
+  "Simplified to Traditional (Taiwán), with phrases": "Simpl. → Trad. (Taiwán • frases)",
+  "Traditional (Taiwán) to Simplified": "Trad. (Taiwán) → Simpl.",
+  "Traditional (Hong Kong) to Simplified": "Trad. (Hong Kong) → Simpl.",
+  "Traditional (Taiwán) to Simplified, with phrases": "Trad. (Taiwán • frases) → Simpl.",
+  "Convert Simplified and Traditional Chinese": "Convertir chino Simpl./Trad.",
+  "Convert Mode": "Modo de conversión"
 }

apps/readest-app/public/locales/fa/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "قادر به باز کردن کتاب نیست",
   "Punctuation": "علامت نگارشی",
   "Replace Quotation Marks": "جایگزینی علامت نقل قول",
-  "Enabled only in vertical layout.": "فقط در طرح عمودی فعال است."
+  "Enabled only in vertical layout.": "فقط در طرح عمودی فعال است.",
+  "No Conversion": "بدون تبدیل",
+  "Simplified to Traditional": "ساده → سنتی",
+  "Traditional to Simplified": "سنتی → ساده",
+  "Simplified to Traditional (Taiwan)": "ساده → سنتی (تایوان)",
+  "Simplified to Traditional (Hong Kong)": "ساده → سنتی (هنگ‌کنگ)",
+  "Simplified to Traditional (Taiwan), with phrases": "ساده → سنتی (تایوان • عبارات)",
+  "Traditional (Taiwan) to Simplified": "سنتی (تایوان) → ساده",
+  "Traditional (Hong Kong) to Simplified": "سنتی (هنگ‌کنگ) → ساده",
+  "Traditional (Taiwan) to Simplified, with phrases": "سنتی (تایوان • عبارات) → ساده",
+  "Convert Simplified and Traditional Chinese": "تبدیل چینی ساده/سنتی",
+  "Convert Mode": "حالت تبدیل"
 }

apps/readest-app/public/locales/fr/translation.json

@@ -663,5 +663,16 @@
   "Unable to open book": "Impossible d'ouvrir le livre",
   "Punctuation": "Ponctuation",
   "Replace Quotation Marks": "Remplacer les guillemets",
-  "Enabled only in vertical layout.": "Activé uniquement en disposition verticale."
+  "Enabled only in vertical layout.": "Activé uniquement en disposition verticale.",
+  "No Conversion": "Pas de conversion",
+  "Simplified to Traditional": "Simp. → Trad.",
+  "Traditional to Simplified": "Trad. → Simp.",
+  "Simplified to Traditional (Taiwan)": "Simp. → Trad. (Taïwan)",
+  "Simplified to Traditional (Hong Kong)": "Simp. → Trad. (Hong Kong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Simp. → Trad. (Taïwan • phrases)",
+  "Traditional (Taiwan) to Simplified": "Trad. (Taïwan) → Simp.",
+  "Traditional (Hong Kong) to Simplified": "Trad. (Hong Kong) → Simp.",
+  "Traditional (Taiwan) to Simplified, with phrases": "Trad. (Taïwan • phrases) → Simp.",
+  "Convert Simplified and Traditional Chinese": "Convertir chinois simp./trad.",
+  "Convert Mode": "Mode de conversion"
 }

apps/readest-app/public/locales/hi/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "पुस्तक खोलने में असमर्थ",
   "Punctuation": "विराम चिह्न",
   "Replace Quotation Marks": "उद्धरण चिह्न बदलें",
-  "Enabled only in vertical layout.": "केवल ऊर्ध्वाधर लेआउट में सक्षम।"
+  "Enabled only in vertical layout.": "केवल ऊर्ध्वाधर लेआउट में सक्षम।",
+  "No Conversion": "कोई रूपांतरण नहीं",
+  "Simplified to Traditional": "सरलीकृत → पारंपरिक",
+  "Traditional to Simplified": "पारंपरिक → सरलीकृत",
+  "Simplified to Traditional (Taiwan)": "सरलीकृत → पारंपरिक (ताइवान)",
+  "Simplified to Traditional (Hong Kong)": "सरलीकृत → पारंपरिक (हांगकांग)",
+  "Simplified to Traditional (Taiwan), with phrases": "सरलीकृत → पारंपरिक (ताइवान • वाक्यांश)",
+  "Traditional (Taiwan) to Simplified": "पारंपरिक (ताइवान) → सरलीकृत",
+  "Traditional (Hong Kong) to Simplified": "पारंपरिक (हांगकांग) → सरलीकृत",
+  "Traditional (Taiwan) to Simplified, with phrases": "पारंपरिक (ताइवान • वाक्यांश) → सरलीकृत",
+  "Convert Simplified and Traditional Chinese": "सरलीकृत/पारंपरिक चीनी रूपांतरण",
+  "Convert Mode": "रूपांतरण मोड"
 }

apps/readest-app/public/locales/id/translation.json

@@ -655,5 +655,16 @@
   "Unable to open book": "Tidak dapat membuka buku",
   "Punctuation": "Tanda Baca",
   "Replace Quotation Marks": "Ganti Tanda Kutip",
-  "Enabled only in vertical layout.": "Hanya diaktifkan dalam tata letak vertikal."
+  "Enabled only in vertical layout.": "Hanya diaktifkan dalam tata letak vertikal.",
+  "No Conversion": "Tanpa konversi",
+  "Simplified to Traditional": "Sederhana → Tradisional",
+  "Traditional to Simplified": "Tradisional → Sederhana",
+  "Simplified to Traditional (Taiwan)": "Sederhana → Tradisional (Taiwan)",
+  "Simplified to Traditional (Hong Kong)": "Sederhana → Tradisional (Hong Kong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Sederhana → Tradisional (Taiwan • frasa)",
+  "Traditional (Taiwan) to Simplified": "Tradisional (Taiwan) → Sederhana",
+  "Traditional (Hong Kong) to Simplified": "Tradisional (Hong Kong) → Sederhana",
+  "Traditional (Taiwan) to Simplified, with phrases": "Tradisional (Taiwan • frasa) → Sederhana",
+  "Convert Simplified and Traditional Chinese": "Konversi Tionghoa Sederhana/Tradisional",
+  "Convert Mode": "Mode Konversi"
 }

apps/readest-app/public/locales/it/translation.json

@@ -663,5 +663,16 @@
   "Unable to open book": "Impossibile aprire il libro",
   "Punctuation": "Segni di punteggiatura",
   "Replace Quotation Marks": "Sostituisci le virgolette",
-  "Enabled only in vertical layout.": "Abilitato solo in layout verticale."
+  "Enabled only in vertical layout.": "Abilitato solo in layout verticale.",
+  "No Conversion": "Nessuna conversione",
+  "Simplified to Traditional": "Semplificato → Tradizionale",
+  "Traditional to Simplified": "Tradizionale → Semplificato",
+  "Simplified to Traditional (Taiwan)": "Semplificato → Tradizionale (Taiwan)",
+  "Simplified to Traditional (Hong Kong)": "Semplificato → Tradizionale (Hong Kong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Semplificato → Tradizionale (Taiwan • frasi)",
+  "Traditional (Taiwan) to Simplified": "Tradizionale (Taiwan) → Semplificato",
+  "Traditional (Hong Kong) to Simplified": "Tradizionale (Hong Kong) → Semplificato",
+  "Traditional (Taiwan) to Simplified, with phrases": "Tradizionale (Taiwan • frasi) → Semplificato",
+  "Convert Simplified and Traditional Chinese": "Converti Cinese Semplificato/Tradizionale",
+  "Convert Mode": "Modalità conversione"
 }

apps/readest-app/public/locales/ja/translation.json

@@ -655,5 +655,16 @@
   "Unable to open book": "本を開くことができません",
   "Punctuation": "句読点",
   "Replace Quotation Marks": "引用符を置き換える",
-  "Enabled only in vertical layout.": "縦書きレイアウトでのみ有効です。"
+  "Enabled only in vertical layout.": "縦書きレイアウトでのみ有効です。",
+  "No Conversion": "変換なし",
+  "Simplified to Traditional": "簡体字 → 繁体字",
+  "Traditional to Simplified": "繁体字 → 簡体字",
+  "Simplified to Traditional (Taiwan)": "簡体字 → 繁体字（台湾）",
+  "Simplified to Traditional (Hong Kong)": "簡体字 → 繁体字（香港）",
+  "Simplified to Traditional (Taiwan), with phrases": "簡体字 → 繁体字（台湾）• フレーズ",
+  "Traditional (Taiwan) to Simplified": "繁体字（台湾） → 簡体字",
+  "Traditional (Hong Kong) to Simplified": "繁体字（香港） → 簡体字",
+  "Traditional (Taiwan) to Simplified, with phrases": "繁体字（台湾） → 簡体字 • フレーズ",
+  "Convert Simplified and Traditional Chinese": "簡体字/繁体字変換",
+  "Convert Mode": "変換モード"
 }

apps/readest-app/public/locales/ko/translation.json

@@ -655,5 +655,16 @@
   "Unable to open book": "책을 열 수 없습니다",
   "Punctuation": "구두점",
   "Replace Quotation Marks": "인용 부호 바꾸기",
-  "Enabled only in vertical layout.": "세로 레이아웃에서만 활성화됩니다."
+  "Enabled only in vertical layout.": "세로 레이아웃에서만 활성화됩니다.",
+  "No Conversion": "변환 없음",
+  "Simplified to Traditional": "간체 → 번체",
+  "Traditional to Simplified": "번체 → 간체",
+  "Simplified to Traditional (Taiwan)": "간체 → 번체 (대만)",
+  "Simplified to Traditional (Hong Kong)": "간체 → 번체 (홍콩)",
+  "Simplified to Traditional (Taiwan), with phrases": "간체 → 번체 (대만) • 문구",
+  "Traditional (Taiwan) to Simplified": "번체 (대만) → 간체",
+  "Traditional (Hong Kong) to Simplified": "번체 (홍콩) → 간체",
+  "Traditional (Taiwan) to Simplified, with phrases": "번체 (대만) → 간체 • 문구",
+  "Convert Simplified and Traditional Chinese": "간체/번체 변환",
+  "Convert Mode": "변환 모드"
 }

apps/readest-app/public/locales/nl/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "Kan boek niet openen",
   "Punctuation": "Interpunctie",
   "Replace Quotation Marks": "Aanhalingstekens vervangen",
-  "Enabled only in vertical layout.": "Alleen ingeschakeld in verticale lay-out."
+  "Enabled only in vertical layout.": "Alleen ingeschakeld in verticale lay-out.",
+  "No Conversion": "Geen conversie",
+  "Simplified to Traditional": "Vereenvoudigd → Traditioneel",
+  "Traditional to Simplified": "Traditioneel → Vereenvoudigd",
+  "Simplified to Traditional (Taiwan)": "Vereenvoudigd → Traditioneel (Taiwan)",
+  "Simplified to Traditional (Hong Kong)": "Vereenvoudigd → Traditioneel (Hong Kong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Vereenvoudigd → Traditioneel (Taiwan • zinnen)",
+  "Traditional (Taiwan) to Simplified": "Traditioneel (Taiwan) → Vereenvoudigd",
+  "Traditional (Hong Kong) to Simplified": "Traditioneel (Hong Kong) → Vereenvoudigd",
+  "Traditional (Taiwan) to Simplified, with phrases": "Traditioneel (Taiwan • zinnen) → Vereenvoudigd",
+  "Convert Simplified and Traditional Chinese": "Converteer Vereenvoudigd/Traditioneel Chinees",
+  "Convert Mode": "Conversiemodus"
 }

apps/readest-app/public/locales/pl/translation.json

@@ -667,5 +667,16 @@
   "Unable to open book": "Nie można otworzyć książki",
   "Punctuation": "Interpunkcja",
   "Replace Quotation Marks": "Zamień cudzysłowy",
-  "Enabled only in vertical layout.": "Włączone tylko w układzie pionowym."
+  "Enabled only in vertical layout.": "Włączone tylko w układzie pionowym.",
+  "No Conversion": "Brak konwersji",
+  "Simplified to Traditional": "Uproszczony → Tradycyjny",
+  "Traditional to Simplified": "Tradycyjny → Uproszczony",
+  "Simplified to Traditional (Taiwan)": "Uproszczony → Tradycyjny (Tajwan)",
+  "Simplified to Traditional (Hong Kong)": "Uproszczony → Tradycyjny (Hongkong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Uproszczony → Tradycyjny (Tajwan • frazy)",
+  "Traditional (Taiwan) to Simplified": "Tradycyjny (Tajwan) → Uproszczony",
+  "Traditional (Hong Kong) to Simplified": "Tradycyjny (Hongkong) → Uproszczony",
+  "Traditional (Taiwan) to Simplified, with phrases": "Tradycyjny (Tajwan • frazy) → Uproszczony",
+  "Convert Simplified and Traditional Chinese": "Konwertuj chiński uproszczony/tradycyjny",
+  "Convert Mode": "Tryb konwersji"
 }

apps/readest-app/public/locales/pt/translation.json

@@ -663,5 +663,16 @@
   "Unable to open book": "Não foi possível abrir o livro",
   "Punctuation": "Pontuação",
   "Replace Quotation Marks": "Substituir Aspas",
-  "Enabled only in vertical layout.": "Habilitado apenas no layout vertical."
+  "Enabled only in vertical layout.": "Habilitado apenas no layout vertical.",
+  "No Conversion": "Sem conversão",
+  "Simplified to Traditional": "Simplificado → Tradicional",
+  "Traditional to Simplified": "Tradicional → Simplificado",
+  "Simplified to Traditional (Taiwan)": "Simplificado → Tradicional (Taiwan)",
+  "Simplified to Traditional (Hong Kong)": "Simplificado → Tradicional (Hong Kong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Simplificado → Tradicional (Taiwan • frases)",
+  "Traditional (Taiwan) to Simplified": "Tradicional (Taiwan) → Simplificado",
+  "Traditional (Hong Kong) to Simplified": "Tradicional (Hong Kong) → Simplificado",
+  "Traditional (Taiwan) to Simplified, with phrases": "Tradicional (Taiwan • frases) → Simplificado",
+  "Convert Simplified and Traditional Chinese": "Converter Chinês Simpl./Trad.",
+  "Convert Mode": "Modo de conversão"
 }

apps/readest-app/public/locales/ru/translation.json

@@ -667,5 +667,16 @@
   "Unable to open book": "Не удалось открыть книгу",
   "Punctuation": "Пунктуация",
   "Replace Quotation Marks": "Заменить кавычки",
-  "Enabled only in vertical layout.": "Включено только в вертикальной раскладке."
+  "Enabled only in vertical layout.": "Включено только в вертикальной раскладке.",
+  "No Conversion": "Без преобразования",
+  "Simplified to Traditional": "Упрощённый → Традиционный",
+  "Traditional to Simplified": "Традиционный → Упрощённый",
+  "Simplified to Traditional (Taiwan)": "Упрощённый → Традиционный (Тайвань)",
+  "Simplified to Traditional (Hong Kong)": "Упрощённый → Традиционный (Гонконг)",
+  "Simplified to Traditional (Taiwan), with phrases": "Упрощённый → Традиционный (Тайвань • фразы)",
+  "Traditional (Taiwan) to Simplified": "Традиционный (Тайвань) → Упрощённый",
+  "Traditional (Hong Kong) to Simplified": "Традиционный (Гонконг) → Упрощённый",
+  "Traditional (Taiwan) to Simplified, with phrases": "Традиционный (Тайвань • фразы) → Упрощённый",
+  "Convert Simplified and Traditional Chinese": "Преобразовать упрощённый/традиционный китайский",
+  "Convert Mode": "Режим преобразования"
 }

apps/readest-app/public/locales/si/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "පොත විවෘත කිරීමට නොහැක",
   "Punctuation": "ලකුණු",
   "Replace Quotation Marks": "උද්ධෘත ලකුණු ප්‍රතිස්ථාපනය කරන්න",
-  "Enabled only in vertical layout.": "සිරස් ආකෘතියේ පමණක් සක්‍රීයයි."
+  "Enabled only in vertical layout.": "සිරස් ආකෘතියේ පමණක් සක්‍රීයයි.",
+  "No Conversion": "ප්‍රතිවර්තනයක් නැත",
+  "Simplified to Traditional": "සරල → සාම්ප්‍රදායික",
+  "Traditional to Simplified": "සාම්ප්‍රදායික → සරල",
+  "Simplified to Traditional (Taiwan)": "සරල → සාම්ප්‍රදායික (තායිවான்)",
+  "Simplified to Traditional (Hong Kong)": "සරල → සාම්ප්‍රදායික (හොං කොං)",
+  "Simplified to Traditional (Taiwan), with phrases": "සරල → සාම්ප්‍රදායික (තායිවාන • වාක්‍ය)",
+  "Traditional (Taiwan) to Simplified": "සාම්ප්‍රදායික (තායිවාන) → සරල",
+  "Traditional (Hong Kong) to Simplified": "සාම්ප්‍රදායික (හොං කොං) → සරල",
+  "Traditional (Taiwan) to Simplified, with phrases": "සාම්ප්‍රදායික (තායිවාන • වාක්‍ය) → සරල",
+  "Convert Simplified and Traditional Chinese": "සරල/සාම්ප්‍රදායික චීන පරිවර්තනය",
+  "Convert Mode": "පරිවර්තන මෝඩියුලය"
 }

apps/readest-app/public/locales/sv/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "Kunde inte öppna bok",
   "Punctuation": "Interpunktion",
   "Replace Quotation Marks": "Ersätt citattecken",
-  "Enabled only in vertical layout.": "Aktiverad endast i vertikal layout."
+  "Enabled only in vertical layout.": "Aktiverad endast i vertikal layout.",
+  "No Conversion": "Ingen konvertering",
+  "Simplified to Traditional": "Förenklad → Traditionell",
+  "Traditional to Simplified": "Traditionell → Förenklad",
+  "Simplified to Traditional (Taiwan)": "Förenklad → Traditionell (Taiwan)",
+  "Simplified to Traditional (Hong Kong)": "Förenklad → Traditionell (Hongkong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Förenklad → Traditionell (Taiwan • fraser)",
+  "Traditional (Taiwan) to Simplified": "Traditionell (Taiwan) → Förenklad",
+  "Traditional (Hong Kong) to Simplified": "Traditionell (Hongkong) → Förenklad",
+  "Traditional (Taiwan) to Simplified, with phrases": "Traditionell (Taiwan • fraser) → Förenklad",
+  "Convert Simplified and Traditional Chinese": "Konvertera förenklad/traditionell kinesiska",
+  "Convert Mode": "Konverteringsläge"
 }

apps/readest-app/public/locales/ta/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "புத்தகத்தைத் திறக்க முடியவில்லை",
   "Punctuation": "விருத்தி",
   "Replace Quotation Marks": "உதயம்சுட்டிகளை மாற்றவும்",
-  "Enabled only in vertical layout.": "செங்குத்து அமைப்பில் மட்டுமே இயலுமைப்படுத்தப்பட்டது."
+  "Enabled only in vertical layout.": "செங்குத்து அமைப்பில் மட்டுமே இயலுமைப்படுத்தப்பட்டது.",
+  "No Conversion": "மாற்றம் செய்யவில்லை",
+  "Simplified to Traditional": "எளிய → பாரம்பரிய",
+  "Traditional to Simplified": "பாரம்பரிய → எளிய",
+  "Simplified to Traditional (Taiwan)": "எளிய → பாரம்பரிய (தைவான்)",
+  "Simplified to Traditional (Hong Kong)": "எளிய → பாரம்பரிய (ஹாங்காங்)",
+  "Simplified to Traditional (Taiwan), with phrases": "எளிய → பாரம்பரிய (தைவான் • வசனங்கள்)",
+  "Traditional (Taiwan) to Simplified": "பாரம்பரிய (தைவான்) → எளிய",
+  "Traditional (Hong Kong) to Simplified": "பாரம்பரிய (ஹாங்காங்) → எளிய",
+  "Traditional (Taiwan) to Simplified, with phrases": "பாரம்பரிய (தைவான் • வசனங்கள்) → எளிய",
+  "Convert Simplified and Traditional Chinese": "எளிய/பாரம்பரிய சீன மொழி மாற்றம்",
+  "Convert Mode": "மாற்ற முறை"
 }

apps/readest-app/public/locales/th/translation.json

@@ -655,5 +655,16 @@
   "Unable to open book": "ไม่สามารถเปิดหนังสือได้",
   "Punctuation": "เครื่องหมายวรรคตอน",
   "Replace Quotation Marks": "แทนที่เครื่องหมายคำพูด",
-  "Enabled only in vertical layout.": "เปิดใช้งานเฉพาะในเค้าโครงแนวตั้งเท่านั้น"
+  "Enabled only in vertical layout.": "เปิดใช้งานเฉพาะในเค้าโครงแนวตั้งเท่านั้น",
+  "No Conversion": "ไม่แปลงค่า",
+  "Simplified to Traditional": "ตัวย่อ → ตัวเต็ม",
+  "Traditional to Simplified": "ตัวเต็ม → ตัวย่อ",
+  "Simplified to Traditional (Taiwan)": "ตัวย่อ → ตัวเต็ม (ไต้หวัน)",
+  "Simplified to Traditional (Hong Kong)": "ตัวย่อ → ตัวเต็ม (ฮ่องกง)",
+  "Simplified to Traditional (Taiwan), with phrases": "ตัวย่อ → ตัวเต็ม (ไต้หวัน • วลี)",
+  "Traditional (Taiwan) to Simplified": "ตัวเต็ม (ไต้หวัน) → ตัวย่อ",
+  "Traditional (Hong Kong) to Simplified": "ตัวเต็ม (ฮ่องกง) → ตัวย่อ",
+  "Traditional (Taiwan) to Simplified, with phrases": "ตัวเต็ม (ไต้หวัน • วลี) → ตัวย่อ",
+  "Convert Simplified and Traditional Chinese": "แปลงจีนตัวย่อ/ตัวเต็ม",
+  "Convert Mode": "โหมดแปลงค่า"
 }

apps/readest-app/public/locales/tr/translation.json

@@ -659,5 +659,16 @@
   "Unable to open book": "Kitap açılamıyor",
   "Punctuation": "Noktalama İşaretleri",
   "Replace Quotation Marks": "Tırnak İşaretlerini Değiştir",
-  "Enabled only in vertical layout.": "Yalnızca dikey düzenle etkinleştirildi."
+  "Enabled only in vertical layout.": "Yalnızca dikey düzenle etkinleştirildi.",
+  "No Conversion": "Dönüştürme yok",
+  "Simplified to Traditional": "Basitleştirilmiş → Geleneksel",
+  "Traditional to Simplified": "Geleneksel → Basitleştirilmiş",
+  "Simplified to Traditional (Taiwan)": "Basitleştirilmiş → Geleneksel (Tayvan)",
+  "Simplified to Traditional (Hong Kong)": "Basitleştirilmiş → Geleneksel (Hong Kong)",
+  "Simplified to Traditional (Taiwan), with phrases": "Basitleştirilmiş → Geleneksel (Tayvan • ifadeler)",
+  "Traditional (Taiwan) to Simplified": "Geleneksel (Tayvan) → Basitleştirilmiş",
+  "Traditional (Hong Kong) to Simplified": "Geleneksel (Hong Kong) → Basitleştirilmiş",
+  "Traditional (Taiwan) to Simplified, with phrases": "Geleneksel (Tayvan • ifadeler) → Basitleştirilmiş",
+  "Convert Simplified and Traditional Chinese": "Basitleştirilmiş/Geleneksel Çince Dönüştür",
+  "Convert Mode": "Dönüştürme Modu"
 }

apps/readest-app/public/locales/uk/translation.json

@@ -667,5 +667,16 @@
   "Unable to open book": "Не вдалося відкрити книгу",
   "Punctuation": "Пунктуація",
   "Replace Quotation Marks": "Замінити лапки",
-  "Enabled only in vertical layout.": "Активовано лише у вертикальному макеті."
+  "Enabled only in vertical layout.": "Активовано лише у вертикальному макеті.",
+  "No Conversion": "Без конвертації",
+  "Simplified to Traditional": "Спрощене → Традиційне",
+  "Traditional to Simplified": "Традиційне → Спрощене",
+  "Simplified to Traditional (Taiwan)": "Спрощене → Традиційне (Тайвань)",
+  "Simplified to Traditional (Hong Kong)": "Спрощене → Традиційне (Гонконг)",
+  "Simplified to Traditional (Taiwan), with phrases": "Спрощене → Традиційне (Тайвань • фрази)",
+  "Traditional (Taiwan) to Simplified": "Традиційне (Тайвань) → Спрощене",
+  "Traditional (Hong Kong) to Simplified": "Традиційне (Гонконг) → Спрощене",
+  "Traditional (Taiwan) to Simplified, with phrases": "Традиційне (Тайвань • фрази) → Спрощене",
+  "Convert Simplified and Traditional Chinese": "Конвертувати спрощену/традиційну китайську",
+  "Convert Mode": "Режим конвертації"
 }

apps/readest-app/public/locales/vi/translation.json

@@ -655,5 +655,16 @@
   "Unable to open book": "Không thể mở sách",
   "Punctuation": "Dấu câu",
   "Replace Quotation Marks": "Thay thế dấu ngoặc kép",
-  "Enabled only in vertical layout.": "Chỉ bật trong bố cục dọc."
+  "Enabled only in vertical layout.": "Chỉ bật trong bố cục dọc.",
+  "No Conversion": "Không chuyển đổi",
+  "Simplified to Traditional": "Giản thể → Phồn thể",
+  "Traditional to Simplified": "Phồn thể → Giản thể",
+  "Simplified to Traditional (Taiwan)": "Giản thể → Phồn thể (Đài Loan)",
+  "Simplified to Traditional (Hong Kong)": "Giản thể → Phồn thể (Hồng Kông)",
+  "Simplified to Traditional (Taiwan), with phrases": "Giản thể → Phồn thể (Đài Loan • cụm từ)",
+  "Traditional (Taiwan) to Simplified": "Phồn thể (Đài Loan) → Giản thể",
+  "Traditional (Hong Kong) to Simplified": "Phồn thể (Hồng Kông) → Giản thể",
+  "Traditional (Taiwan) to Simplified, with phrases": "Phồn thể (Đài Loan • cụm từ) → Giản thể",
+  "Convert Simplified and Traditional Chinese": "Chuyển đổi Trung giản/Phồn thể",
+  "Convert Mode": "Chế độ chuyển đổi"
 }

apps/readest-app/public/locales/zh-CN/translation.json

@@ -655,5 +655,16 @@
   "Unable to open book": "无法打开书籍",
   "Punctuation": "标点符号",
   "Replace Quotation Marks": "替换引号",
-  "Enabled only in vertical layout.": "仅在竖排布局中启用"
+  "Enabled only in vertical layout.": "仅在竖排布局中启用",
+  "No Conversion": "不转换",
+  "Simplified to Traditional": "简体 → 繁体",
+  "Traditional to Simplified": "繁体 → 简体",
+  "Simplified to Traditional (Taiwan)": "简体 → 繁体（台湾）",
+  "Simplified to Traditional (Hong Kong)": "简体 → 繁体（香港）",
+  "Simplified to Traditional (Taiwan), with phrases": "简体 → 繁体（台湾）习惯用语",
+  "Traditional (Taiwan) to Simplified": "繁体（台湾） → 简体",
+  "Traditional (Hong Kong) to Simplified": "繁体（香港） → 简体",
+  "Traditional (Taiwan) to Simplified, with phrases": "繁体（台湾） → 简体习惯用语",
+  "Convert Simplified and Traditional Chinese": "简繁中文转换",
+  "Convert Mode": "转换模式"
 }

apps/readest-app/public/locales/zh-TW/translation.json

@@ -655,5 +655,16 @@
   "Unable to open book": "無法打開書籍",
   "Punctuation": "標點符號",
   "Replace Quotation Marks": "替換引號",
-  "Enabled only in vertical layout.": "僅在直排佈局中啟用"
+  "Enabled only in vertical layout.": "僅在直排佈局中啟用",
+  "No Conversion": "不轉換",
+  "Simplified to Traditional": "簡體 → 繁體",
+  "Traditional to Simplified": "繁體 → 簡體",
+  "Simplified to Traditional (Taiwan)": "簡體 → 繁體（台灣）",
+  "Simplified to Traditional (Hong Kong)": "簡體 → 繁體（香港）",
+  "Simplified to Traditional (Taiwan), with phrases": "簡體 → 繁體（台灣）慣用語",
+  "Traditional (Taiwan) to Simplified": "繁體（台灣） → 簡體",
+  "Traditional (Hong Kong) to Simplified": "繁體（香港） → 簡體",
+  "Traditional (Taiwan) to Simplified, with phrases": "繁體（台灣） → 簡體慣用語",
+  "Convert Simplified and Traditional Chinese": "簡繁中文轉換",
+  "Convert Mode": "轉換模式"
 }

apps/readest-app/src/__tests__/utils/simplecc.test.ts

@@ -0,0 +1,42 @@
+import { describe, test, expect, beforeAll } from 'vitest';
+import init, { simplecc } from '@simplecc/simplecc_wasm';
+import { readFile } from 'fs/promises';
+import { join } from 'path';
+
+describe.concurrent('suite', () => {
+  beforeAll(async () => {
+    const wasmPath = join(process.cwd(), 'public/vendor/simplecc/simplecc_wasm_bg.wasm');
+    const wasmBuffer = await readFile(wasmPath);
+    await init(wasmBuffer);
+    await init();
+  });
+
+  test('basic s2t and t2s', () => {
+    expect(simplecc('发财了去植发', 's2t')).toBe('發財了去植髮');
+    expect(simplecc('發財了去植髮', 't2s')).toBe('发财了去植发');
+  });
+
+  test('s2tw - Simplified to Traditional (Taiwan)', () => {
+    expect(simplecc('鼠标', 's2tw')).toBe('鼠標');
+    expect(simplecc('软件', 's2tw')).toBe('軟件');
+    expect(simplecc('信息', 's2tw')).toBe('信息');
+  });
+
+  test('s2twp - Simplified to Traditional (Taiwan) with phrases', () => {
+    expect(simplecc('计算机', 's2twp')).toBe('計算機');
+    expect(simplecc('打印机', 's2twp')).toBe('印表機');
+    expect(simplecc('激光', 's2twp')).toBe('雷射');
+  });
+
+  test('tw2s - Traditional (Taiwan) to Simplified', () => {
+    expect(simplecc('滑鼠', 'tw2s')).toBe('滑鼠');
+    expect(simplecc('軟體', 'tw2s')).toBe('软体');
+    expect(simplecc('資訊', 'tw2s')).toBe('资讯');
+  });
+
+  test('tw2sp - Traditional (Taiwan) to Simplified with phrases', () => {
+    expect(simplecc('電腦', 'tw2sp')).toBe('电脑');
+    expect(simplecc('印表機', 'tw2sp')).toBe('打印机');
+    expect(simplecc('雷射', 'tw2sp')).toBe('激光');
+  });
+});

apps/readest-app/src/app/reader/components/FoliateViewer.tsx

@@ -147,6 +147,7 @@ const FoliateViewer: React.FC<{
                 'whitespace',
                 'language',
                 'sanitizer',
+                'simplecc',
               ],
             };
             return Promise.resolve(transformContent(ctx));

apps/readest-app/src/components/Select.tsx

@@ -26,7 +26,10 @@ export default function Select({
       value={value}
       onChange={onChange}
       onKeyDown={(e) => e.stopPropagation()}
-      className={clsx('select bg-base-200 h-8 min-h-8 rounded-md border-none text-sm', className)}
+      className={clsx(
+        'select bg-base-200 h-8 min-h-8 max-w-[60%] truncate rounded-md border-none text-sm',
+        className,
+      )}
       disabled={disabled}
       style={{
         textAlignLast: 'end',

apps/readest-app/src/components/settings/LangPanel.tsx

@@ -9,6 +9,7 @@ import { saveViewSettings } from '@/helpers/settings';
 import { getTranslators } from '@/services/translators';
 import { useResetViewSettings } from '@/hooks/useResetSettings';
 import { TRANSLATED_LANGS, TRANSLATOR_LANGS } from '@/services/constants';
+import { ConvertChineseVariant } from '@/types/book';
 import { SettingsPanelPanelProp } from './SettingsDialog';
 import { isCJKEnv } from '@/utils/misc';
 import Select from '@/components/Select';
@@ -30,6 +31,9 @@ const LangPanel: React.FC<SettingsPanelPanelProp> = ({ bookKey, onRegisterReset
   const [replaceQuotationMarks, setReplaceQuotationMarks] = useState(
     viewSettings.replaceQuotationMarks,
   );
+  const [convertChineseVariant, setConvertChineseVariant] = useState(
+    viewSettings.convertChineseVariant,
+  );
 
   const resetToDefaults = useResetViewSettings();
 
@@ -195,6 +199,46 @@ const LangPanel: React.FC<SettingsPanelPanelProp> = ({ bookKey, onRegisterReset
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [replaceQuotationMarks]);
 
+  const getConvertModeOptions: () => { value: ConvertChineseVariant; label: string }[] = () => {
+    return [
+      { value: 'none', label: _('No Conversion') },
+      { value: 's2t', label: _('Simplified to Traditional') },
+      { value: 't2s', label: _('Traditional to Simplified') },
+      { value: 's2tw', label: _('Simplified to Traditional (Taiwan)') },
+      { value: 's2hk', label: _('Simplified to Traditional (Hong Kong)') },
+      { value: 's2twp', label: _('Simplified to Traditional (Taiwan), with phrases') },
+      { value: 'tw2s', label: _('Traditional (Taiwan) to Simplified') },
+      { value: 'hk2s', label: _('Traditional (Hong Kong) to Simplified') },
+      { value: 'tw2sp', label: _('Traditional (Taiwan) to Simplified, with phrases') },
+    ];
+  };
+
+  const getConvertModeOption = () => {
+    const value = convertChineseVariant;
+    const availableOptions = getConvertModeOptions();
+    return availableOptions.find((o) => o.value === value) || availableOptions[0]!;
+  };
+
+  const handleSelectConvertMode = (event: React.ChangeEvent<HTMLSelectElement>) => {
+    const option = event.target.value as ConvertChineseVariant;
+    setConvertChineseVariant(option);
+  };
+
+  useEffect(() => {
+    if (convertChineseVariant === viewSettings.convertChineseVariant) return;
+    saveViewSettings(
+      envConfig,
+      bookKey,
+      'convertChineseVariant',
+      convertChineseVariant,
+      true,
+      false,
+    ).then(() => {
+      recreateViewer(envConfig, bookKey);
+    });
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [convertChineseVariant]);
+
   return (
     <div className={clsx('my-4 w-full space-y-6')}>
       <div className='w-full'>
@@ -288,6 +332,24 @@ const LangPanel: React.FC<SettingsPanelPanelProp> = ({ bookKey, onRegisterReset
           </div>
         </div>
       )}
+
+      {isCJKEnv() && (
+        <div className='w-full'>
+          <h2 className='mb-2 font-medium'>{_('Convert Simplified and Traditional Chinese')}</h2>
+          <div className='card border-base-200 bg-base-100 border shadow'>
+            <div className='divide-base-200'>
+              <div className='config-item'>
+                <span className=''>{_('Convert Mode')}</span>
+                <Select
+                  value={getConvertModeOption().value}
+                  onChange={handleSelectConvertMode}
+                  options={getConvertModeOptions()}
+                />
+              </div>
+            </div>
+          </div>
+        </div>
+      )}
     </div>
   );
 };

apps/readest-app/src/services/appService.ts

@@ -38,6 +38,7 @@ import {
   DEFAULT_BOOK_LAYOUT,
   DEFAULT_BOOK_STYLE,
   DEFAULT_BOOK_FONT,
+  DEFAULT_BOOK_LANGUAGE,
   DEFAULT_VIEW_CONFIG,
   DEFAULT_READSETTINGS,
   SYSTEM_SETTINGS_VERSION,
@@ -169,6 +170,7 @@ export abstract class BaseAppService implements AppService {
       ...DEFAULT_BOOK_LAYOUT,
       ...DEFAULT_BOOK_STYLE,
       ...DEFAULT_BOOK_FONT,
+      ...DEFAULT_BOOK_LANGUAGE,
       ...(this.isMobile ? DEFAULT_MOBILE_VIEW_SETTINGS : {}),
       ...(isCJKEnv() ? DEFAULT_CJK_VIEW_SETTINGS : {}),
       ...DEFAULT_VIEW_CONFIG,

apps/readest-app/src/services/constants.ts

@@ -1,5 +1,6 @@
 import {
   BookFont,
+  BookLanguage,
   BookLayout,
   BookSearchConfig,
   BookStyle,
@@ -148,11 +149,15 @@ export const DEFAULT_BOOK_LAYOUT: BookLayout = {
   writingMode: 'auto',
   vertical: false,
   rtl: false,
-  replaceQuotationMarks: true,
   scrollingOverlap: 0,
   allowScript: false,
 };
 
+export const DEFAULT_BOOK_LANGUAGE: BookLanguage = {
+  replaceQuotationMarks: true,
+  convertChineseVariant: 'none',
+};
+
 export const DEFAULT_BOOK_STYLE: BookStyle = {
   zoomLevel: 100,
   paragraphMargin: 0.6,

apps/readest-app/src/services/transformers/index.ts

@@ -4,6 +4,7 @@ import { languageTransformer } from './language';
 import { punctuationTransformer } from './punctuation';
 import { whitespaceTransformer } from './whitespace';
 import { sanitizerTransformer } from './sanitizer';
+import { simpleccTransformer } from './simplecc';
 import { styleTransformer } from './style';
 
 export const availableTransformers: Transformer[] = [
@@ -13,5 +14,6 @@ export const availableTransformers: Transformer[] = [
   styleTransformer,
   whitespaceTransformer,
   sanitizerTransformer,
+  simpleccTransformer,
   // Add more transformers here
 ];

apps/readest-app/src/services/transformers/simplecc.ts

@@ -0,0 +1,46 @@
+import type { Transformer } from './types';
+import { simplecc, initSimpleCC } from '@/utils/simplecc';
+
+export const simpleccTransformer: Transformer = {
+  name: 'simplecc',
+
+  transform: async (ctx) => {
+    const convertChineseVariant = ctx.viewSettings.convertChineseVariant;
+    if (!convertChineseVariant || convertChineseVariant === 'none') {
+      return ctx.content;
+    }
+
+    await initSimpleCC();
+    const parser = new DOMParser();
+    const doc = parser.parseFromString(ctx.content, 'text/html');
+
+    const walker = document.createTreeWalker(
+      doc.body || doc.documentElement,
+      NodeFilter.SHOW_TEXT,
+      {
+        acceptNode: (node) => {
+          const parent = node.parentElement;
+          if (parent && (parent.tagName === 'SCRIPT' || parent.tagName === 'STYLE')) {
+            return NodeFilter.FILTER_REJECT;
+          }
+          return node.textContent?.trim() ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_REJECT;
+        },
+      },
+    );
+
+    const textNodes: Text[] = [];
+    let currentNode: Node | null;
+    while ((currentNode = walker.nextNode())) {
+      textNodes.push(currentNode as Text);
+    }
+
+    for (const textNode of textNodes) {
+      if (textNode.textContent) {
+        textNode.textContent = simplecc(textNode.textContent, convertChineseVariant);
+      }
+    }
+
+    const serializer = new XMLSerializer();
+    return serializer.serializeToString(doc);
+  },
+};

apps/readest-app/src/store/readerStore.ts

@@ -156,7 +156,11 @@ export const useReaderStore = create<ReaderStore>((set, get) => ({
         const { file, config } = content;
         console.log('Loading book', key);
         const { book: bookDoc } = await new DocumentLoader(file).open();
-        updateToc(bookDoc, config.viewSettings?.sortedTOC ?? false);
+        await updateToc(
+          bookDoc,
+          config.viewSettings?.sortedTOC ?? false,
+          config.viewSettings?.convertChineseVariant ?? 'none',
+        );
         if (!bookDoc.metadata.title) {
           bookDoc.metadata.title = getBaseFilename(file.name);
         }

apps/readest-app/src/types/book.ts

@@ -112,7 +112,6 @@ export interface BookLayout {
   writingMode: WritingMode;
   vertical: boolean;
   rtl: boolean;
-  replaceQuotationMarks: boolean;
   scrollingOverlap: number;
   allowScript: boolean;
 }
@@ -156,6 +155,22 @@ export interface BookFont {
   fontWeight: number;
 }
 
+export type ConvertChineseVariant =
+  | 'none'
+  | 's2t'
+  | 't2s'
+  | 's2tw'
+  | 's2hk'
+  | 's2twp'
+  | 'tw2s'
+  | 'hk2s'
+  | 'tw2sp';
+
+export interface BookLanguage {
+  replaceQuotationMarks: boolean;
+  convertChineseVariant: ConvertChineseVariant;
+}
+
 export interface ViewConfig {
   sideBarTab: string;
   uiLanguage: string;
@@ -197,6 +212,7 @@ export interface ViewSettings
   extends BookLayout,
     BookStyle,
     BookFont,
+    BookLanguage,
     ViewConfig,
     TTSConfig,
     TranslatorConfig,

apps/readest-app/src/utils/simplecc.ts

@@ -0,0 +1,12 @@
+import init, { simplecc } from '@simplecc/simplecc_wasm';
+
+let initialized = false;
+
+const initSimpleCC = async () => {
+  if (initialized) return;
+
+  await init('/vendor/simplecc/simplecc_wasm_bg.wasm');
+  initialized = true;
+};
+
+export { simplecc, initSimpleCC };

apps/readest-app/src/utils/toc.ts

@@ -1,4 +1,6 @@
+import { ConvertChineseVariant } from '@/types/book';
 import { SectionItem, TOCItem, CFI, BookDoc } from '@/libs/document';
+import { simplecc, initSimpleCC } from '@/utils/simplecc';
 
 export const findParentPath = (toc: TOCItem[], href: string): TOCItem[] => {
   for (const item of toc) {
@@ -37,10 +39,21 @@ export const findTocItemBS = (toc: TOCItem[], cfi: string): TOCItem | null => {
   return result;
 };
 
-export const updateToc = (bookDoc: BookDoc, sortedTOC: boolean): void => {
+export const updateToc = async (
+  bookDoc: BookDoc,
+  sortedTOC: boolean,
+  convertChineseVariant: ConvertChineseVariant,
+) => {
   const items = bookDoc?.toc || [];
+  if (!items.length) return;
+
+  if (convertChineseVariant && convertChineseVariant !== 'none') {
+    await initSimpleCC();
+    convertTocLabels(items, convertChineseVariant);
+  }
+
   const sections = bookDoc?.sections || [];
-  if (!items.length || !sections.length) return;
+  if (!sections.length) return;
 
   const sizes = sections.map((s) => (s.linear != 'no' && s.size > 0 ? s.size : 0));
   let cumulativeSize = 0;
@@ -71,6 +84,17 @@ export const updateToc = (bookDoc: BookDoc, sortedTOC: boolean): void => {
   }
 };
 
+const convertTocLabels = (items: TOCItem[], convertChineseVariant: ConvertChineseVariant) => {
+  items.forEach((item) => {
+    if (item.label) {
+      item.label = simplecc(item.label, convertChineseVariant);
+    }
+    if (item.subitems) {
+      convertTocLabels(item.subitems, convertChineseVariant);
+    }
+  });
+};
+
 const updateTocData = (
   bookDoc: BookDoc,
   items: TOCItem[],

apps/readest-app/tsconfig.json

@@ -30,6 +30,9 @@
       "@pdfjs/*": [
         "./public/vendor/pdfjs/*"
       ],
+      "@simplecc/*": [
+        "./public/vendor/simplecc/*"
+      ]
     }
   },
   "include": [