Add UTF-8 codepage support

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "fdec64"]
 	path = src/fdec64
 	url = https://github.com/bumbread/fdec64.git
+[submodule "src/libwinsane"]
+	path = src/libwinsane
+	url = https://github.com/flysand7/libwinsane.git

bake-test.cmd

@@ -1 +1 @@
-clang test\test_%test%.c -Iinc -g -lkernel32 -lDbghelp -lciabatta.lib
+clang test\test_%test%.c src\libwinsane\libwinsane.obj -Iinc -g -lkernel32 -lDbghelp -lciabatta.lib

src/_win/stdio.c

@@ -123,6 +123,9 @@ void _setup_io() {
     stdin->buffer  = (stream_buffer_t){1, _IOLBF, BUFSIZ, in_buf};
     stdout->buffer = (stream_buffer_t){1, _IOLBF, BUFSIZ, out_buf};
     stderr->buffer = (stream_buffer_t){1, _IONBF,      0, NULL};
+
+    SetConsoleCP(CP_UTF8);  // maybe will work someday
+    SetConsoleOutputCP(CP_UTF8);
 }
 
 int win_parse_mode(

src/libwinsane

@@ -0,0 +1 @@
+Subproject commit c22973570de5d75eff0f03a823536e781ebdac4c

test/test_os.c

@@ -1,10 +0,0 @@
-
-#include <stdio.h>
-
-int main(int argc, char **argv) {
-    for(int i = 0; i != argc; ++i) {
-        char *arg = argv[i];
-        printf("% 2d: %s\n", i, arg);
-    }
-    return 0;
-}

test/test_windows_utf8.c

@@ -0,0 +1,20 @@
+
+#include <stdio.h>
+#include <Windows.h>
+
+#pragma comment(lib, "user32.lib")
+
+int main(int argc, char **argv) {
+    // Print args:
+    printf("Arguments:\n");
+    for(int i = 0; i != argc; ++i) {
+        char *arg = argv[i];
+        printf("  %s\n", arg);
+    }
+    // Test UTF-8 support:
+    printf(u8"Привет, мир!\n");
+    printf(u8"こんにちくわ世界！\n");
+    // Try UTF-8 in winapi (doesn't use UTF-8 without manifest)
+    MessageBoxA(NULL, u8"Успех", u8"Ошибка", MB_OK);
+    return 0;
+}