Less code, simpler, better.

src/common/fs/fs_util.cpp

@@ -36,63 +36,4 @@ std::string PathToUTF8String(const std::filesystem::path& path) {
     return ToUTF8String(path.u8string());
 }
 
-std::u8string U8FilenameSanitizer(const std::u8string_view u8filename) {
-    std::u8string u8path_sanitized{u8filename.begin(), u8filename.end()};
-    size_t eSizeSanitized = u8path_sanitized.size();
-
-    // The name is improved to make it look more beautiful and prohibited characters and shapes are
-    // removed. Switch is used since it is better with many conditions.
-    for (size_t i = 0; i < eSizeSanitized; i++) {
-        switch (u8path_sanitized[i]) {
-        case u8':':
-            if (i == 0 || i == eSizeSanitized - 1) {
-                u8path_sanitized.replace(i, 1, u8"_");
-            } else if (u8path_sanitized[i - 1] == u8' ') {
-                u8path_sanitized.replace(i, 1, u8"-");
-            } else {
-                u8path_sanitized.replace(i, 1, u8" -");
-                eSizeSanitized++;
-            }
-            break;
-        case u8'\\':
-        case u8'/':
-        case u8'*':
-        case u8'?':
-        case u8'\"':
-        case u8'<':
-        case u8'>':
-        case u8'|':
-        case u8'\0':
-            u8path_sanitized.replace(i, 1, u8"_");
-            break;
-        default:
-            break;
-        }
-    }
-
-    // Delete duplicated spaces and dots
-    for (size_t i = 0; i < eSizeSanitized - 1; i++) {
-        if ((u8path_sanitized[i] == u8' ' && u8path_sanitized[i + 1] == u8' ') ||
-            (u8path_sanitized[i] == u8'.' && u8path_sanitized[i + 1] == u8'.')) {
-            u8path_sanitized.erase(i, 1);
-            i--;
-        }
-    }
-
-    // Delete all spaces and dots at the end of the name
-    while (u8path_sanitized.back() == u8' ' || u8path_sanitized.back() == u8'.') {
-        u8path_sanitized.pop_back();
-    }
-
-    if (u8path_sanitized.empty()) {
-        return u8"";
-    }
-
-    return u8path_sanitized;
-}
-
-std::string UTF8FilenameSanitizer(const std::string_view filename) {
-    return ToUTF8String(U8FilenameSanitizer(ToU8String(filename)));
-}
-
 } // namespace Common::FS

src/common/fs/fs_util.h

@@ -82,24 +82,4 @@ concept IsChar = std::same_as<T, char>;
  */
 [[nodiscard]] std::string PathToUTF8String(const std::filesystem::path& path);
 
-/**
- * Fix filename (remove invalid characters)
- *
- * @param u8_string dirty encoded filename string
- *
- * @returns utf8_string sanitized filename string
- *
- */
-[[nodiscard]] std::u8string U8FilenameSanitizer(const std::u8string_view u8filename);
-
-/**
- * Fix filename (remove invalid characters)
- *
- * @param utf8_string dirty encoded filename string
- *
- * @returns utf8_string sanitized filename string
- *
- */
-[[nodiscard]] std::string UTF8FilenameSanitizer(const std::string_view filename);
-
 } // namespace Common::FS

src/yuzu/main.cpp

@@ -2849,9 +2849,21 @@ bool GMainWindow::CreateShortcutLink(const std::filesystem::path& shortcut_path,
 
     bool shortcut_succeeded = false;
 
+    // Copy characters if they are not illegal in Windows filenames
+    std::string filename = "";
+    const std::string illegal_chars = "<>:\"/\\|?*";
+    filename.reserve(name.size());
+    std::copy_if(name.begin(), name.end(), std::back_inserter(filename),
+                 [&illegal_chars](char c) { return illegal_chars.find(c) == std::string::npos; });
+
+    if (filename.empty()) {
+        LOG_ERROR(Frontend, "Filename is empty");
+        shortcut_succeeded = false;
+        return shortcut_succeeded;
+    }
+
     // Replace characters that are illegal in Windows filenames
-    std::filesystem::path shortcut_path_full =
-        shortcut_path / Common::FS::UTF8FilenameSanitizer(name);
+    std::filesystem::path shortcut_path_full = shortcut_path / filename;
 
 #if defined(__linux__) || defined(__FreeBSD__)
     shortcut_path_full += ".desktop";