Windows: convert program arguments to UTF-8

magiblot · magiblot · commit 6645ae23af0b · 2025-03-14T23:45:55.000+01:00
See #83
diff --git a/source/turbo/app.h b/source/turbo/app.h
@@ -28,7 +28,7 @@ struct TurboApp : public TApplication, EditorWindowParent
     turbo::SearchSettings searchSettings;
     std::string mostRecentDir;
 
-    TurboApp(int argc=0, const char *argv[]=0) noexcept;
+    TurboApp(int argc, const char **argv) noexcept;
     static TMenuBar* initMenuBar(TRect r);
     static TStatusLine* initStatusLine(TRect r);
 
diff --git a/source/turbo/main.cc b/source/turbo/main.cc
@@ -1,8 +1,69 @@
 #include "app.h"
 
-int main(int argc, const char *argv[])
+static void runTurbo(int argc, const char **argv)
 {
     TurboApp app(argc, argv);
     app.run();
     app.shutDown();
 }
+
+#if !defined(_WIN32)
+
+int main(int argc, const char *argv[])
+{
+    runTurbo(argc, argv);
+}
+
+#else
+
+static const char *convertToUtf8(const wchar_t *wstr) {
+    int bytes = WideCharToMultiByte(
+        /*CodePage*/ CP_UTF8,
+        /*dwFlags*/ 0,
+        /*lpWideCharStr*/ wstr,
+        /*cchWideChar*/ -1,
+        /*lpMultiByteStr*/ nullptr,
+        /*cbMultiByte*/ 0,
+        /*lpDefaultChar*/ nullptr,
+        /*lpUsedDefaultChar*/ nullptr
+    );
+
+    char *result;
+    if (bytes <= 1)
+    {
+        result = new char[1];
+        result[0] = '\0';
+    }
+    else
+    {
+        result = new char[bytes];
+        WideCharToMultiByte(
+            /*CodePage*/ CP_UTF8,
+            /*dwFlags*/ 0,
+            /*lpWideCharStr*/ wstr,
+            /*cchWideChar*/ -1,
+            /*lpMultiByteStr*/ result,
+            /*cbMultiByte*/ bytes,
+            /*lpDefaultChar*/ nullptr,
+            /*lpUsedDefaultChar*/ nullptr
+        );
+    }
+
+    return result;
+}
+
+int wmain(int argc, const wchar_t *wargv[])
+{
+    // We need to convert arguments to UTF-8 manually.
+    const char **argv = new const char *[argc];
+    for (int i = 0; i < argc; ++i)
+        argv[i] = convertToUtf8(wargv[i]);
+
+    runTurbo(argc, argv);
+
+    for (int i = 0; i < argc; ++i)
+        delete[] argv[i];
+    delete[] argv;
+}
+
+#endif // _WIN32
