From ed44d866dffe55935395d449307d2881374f3ba2 Mon Sep 17 00:00:00 2001
From: mboehmlaender <mboehmlaender@gmx.net>
Date: Mon, 16 Mar 2026 08:36:02 +0000
Subject: [PATCH] 0.10.2-7 Layout/Chars

---
 backend/src/services/cdRipService.js |  6 ++----
 backend/src/utils/files.js           | 24 +++++++++++++++++++++++-
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/backend/src/services/cdRipService.js b/backend/src/services/cdRipService.js
index e966030..aff7916 100644
--- a/backend/src/services/cdRipService.js
+++ b/backend/src/services/cdRipService.js
@@ -5,7 +5,7 @@ const { promisify } = require('util');
 const logger = require('./logger').child('CD_RIP');
 const { spawnTrackedProcess } = require('./processRunner');
 const { parseCdParanoiaProgress } = require('../utils/progressParsers');
-const { ensureDir } = require('../utils/files');
+const { ensureDir, transliterateForFilename } = require('../utils/files');
 const { errorToMeta } = require('../utils/errorMeta');
 
 const execFileAsync = promisify(execFile);
@@ -120,10 +120,8 @@ function buildOutputFilename(track, meta, format, outputTemplate = DEFAULT_CD_OU
 }
 
 function sanitizePathSegment(value, fallback = 'unknown') {
-  const raw = String(value == null ? '' : value)
-    .normalize('NFC')
+  const raw = transliterateForFilename(String(value == null ? '' : value))
     .replace(/[\\/:*?"<>|]/g, '-')
-    // Keep umlauts/special letters, but filter heart symbols in filenames.
     .replace(/[♥❤♡❥❣❦❧]/gu, ' ')
     .replace(/\p{C}+/gu, ' ')
     .replace(/\s+/g, ' ')
diff --git a/backend/src/utils/files.js b/backend/src/utils/files.js
index f1705f4..c0bdcde 100644
--- a/backend/src/utils/files.js
+++ b/backend/src/utils/files.js
@@ -5,8 +5,29 @@ function ensureDir(dirPath) {
   fs.mkdirSync(dirPath, { recursive: true });
 }
 
+function transliterateForFilename(input) {
+  return String(input || '')
+    // German — must come before NFD to get ae/oe/ue instead of just a/o/u
+    .replace(/ä/g, 'ae').replace(/Ä/g, 'Ae')
+    .replace(/ö/g, 'oe').replace(/Ö/g, 'Oe')
+    .replace(/ü/g, 'ue').replace(/Ü/g, 'Ue')
+    .replace(/ß/g, 'ss')
+    // Danish / Norwegian / Swedish
+    .replace(/å/g, 'a').replace(/Å/g, 'A')
+    .replace(/æ/g, 'ae').replace(/Æ/g, 'Ae')
+    .replace(/ø/g, 'o').replace(/Ø/g, 'O')
+    // Icelandic
+    .replace(/ð/g, 'd').replace(/Ð/g, 'D')
+    .replace(/þ/g, 'th').replace(/Þ/g, 'Th')
+    // NFD decomposition + strip combining diacritical marks (handles é→e, ñ→n, ç→c, etc.)
+    .normalize('NFD')
+    .replace(/\p{M}+/gu, '')
+    // Drop any remaining non-ASCII characters
+    .replace(/[^\x00-\x7F]/g, '');
+}
+
 function sanitizeFileName(input) {
-  return String(input || 'untitled')
+  return transliterateForFilename(String(input || 'untitled'))
     .replace(/[\\/:*?"<>|]/g, '_')
     .replace(/\s+/g, ' ')
     .trim()
@@ -63,6 +84,7 @@ function findMediaFiles(dirPath, extensions = ['.mkv', '.mp4']) {
 
 module.exports = {
   ensureDir,
+  transliterateForFilename,
   sanitizeFileName,
   renderTemplate,
   findLargestMediaFile,