Fix gettext on MSVC

src/gettext.cpp

@@ -26,24 +26,24 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "log.h"
 
 #if USE_GETTEXT && defined(_MSC_VER)
-#include <WinNls.h>
+#include <windows.h>
 #include <map>
 #include <direct.h>
 #include "filesys.h"
 
-#define setlocale(category,localename) \
-	setlocale(category,MSVC_LocaleLookup(localename))
+#define setlocale(category, localename) \
+	setlocale(category, MSVC_LocaleLookup(localename))
 
-static std::map<std::wstring,std::wstring> glb_supported_locales;
+static std::map<std::wstring, std::wstring> glb_supported_locales;
 
 /******************************************************************************/
 BOOL CALLBACK UpdateLocaleCallback(LPTSTR pStr)
 {
 	char* endptr = 0;
-	int LOCALEID = strtol(pStr,&endptr,16);
+	int LOCALEID = strtol(pStr, &endptr,16);
 
 	wchar_t buffer[LOCALE_NAME_MAX_LENGTH];
-	memset(buffer,0,sizeof(buffer));
+	memset(buffer, 0, sizeof(buffer));
 	if (GetLocaleInfoW(
 		LOCALEID,
 		LOCALE_SISO639LANGNAME,
@@ -52,7 +52,7 @@ BOOL CALLBACK UpdateLocaleCallback(LPTSTR pStr)
 
 		std::wstring name = buffer;
 
-		memset(buffer,0,sizeof(buffer));
+		memset(buffer, 0, sizeof(buffer));
 		GetLocaleInfoW(
 		LOCALEID,
 		LOCALE_SISO3166CTRYNAME,
@@ -61,7 +61,7 @@ BOOL CALLBACK UpdateLocaleCallback(LPTSTR pStr)
 
 		std::wstring country = buffer;
 
-		memset(buffer,0,sizeof(buffer));
+		memset(buffer, 0, sizeof(buffer));
 		GetLocaleInfoW(
 		LOCALEID,
 		LOCALE_SENGLISHLANGUAGENAME,
@@ -96,7 +96,7 @@ const char* MSVC_LocaleLookup(const char* raw_shortname) {
 	}
 
 	if (first_use) {
-		EnumSystemLocalesA(UpdateLocaleCallback,LCID_SUPPORTED | LCID_ALTERNATE_SORTS);
+		EnumSystemLocalesA(UpdateLocaleCallback, LCID_SUPPORTED | LCID_ALTERNATE_SORTS);
 		first_use = false;
 	}
 
@@ -148,8 +148,8 @@ void init_gettext(const char *path, const std::string &configured_language) {
 		if (current_language_var != configured_language) {
 			STARTUPINFO startupinfo;
 			PROCESS_INFORMATION processinfo;
-			memset(&startupinfo,0,sizeof(startupinfo));
-			memset(&processinfo,0,sizeof(processinfo));
+			memset(&startupinfo, 0, sizeof(startupinfo));
+			memset(&processinfo, 0, sizeof(processinfo));
 			errorstream << "MSVC localization workaround active restating minetest in new environment!" << std::endl;
 
 			std::string parameters = "";
@@ -169,7 +169,7 @@ void init_gettext(const char *path, const std::string &configured_language) {
 			
 			/** users may start by short name in commandline without extention **/
 			std::string appname = argv[0];
-			if (appname.substr(appname.length() -4) != ".exe") {
+			if (appname.substr(appname.length() - 4) != ".exe") {
 				appname += ".exe";
 			}
 
@@ -260,7 +260,7 @@ void init_gettext(const char *path, const std::string &configured_language) {
 	/* no matter what locale is used we need number format to be "C" */
 	/* to ensure formspec parameters are evaluated correct!          */
 
-	setlocale(LC_NUMERIC,"C");
+	setlocale(LC_NUMERIC, "C");
 	infostream << "Message locale is now set to: "
 			<< setlocale(LC_ALL, 0) << std::endl;
 }

src/gettext.h

@@ -41,16 +41,19 @@ void init_gettext(const char *path, const std::string &configured_language);
 extern const wchar_t *narrow_to_wide_c(const char *mbs);
 extern std::wstring narrow_to_wide(const std::string &mbs);
 
-
 // You must free the returned string!
 inline const wchar_t *wgettext(const char *str)
 {
 	return narrow_to_wide_c(gettext(str));
 }
 
+// Gettext under MSVC needs this strange way. Just don't ask...
 inline std::wstring wstrgettext(const std::string &text)
 {
-	return narrow_to_wide(gettext(text.c_str()));
+	const wchar_t *tmp = wgettext(text.c_str());
+	std::wstring retval = (std::wstring)tmp;
+	delete[] tmp;
+	return retval;
 }
 
 inline std::string strgettext(const std::string &text)

src/util/string.cpp

@@ -98,11 +98,13 @@ const wchar_t *narrow_to_wide_c(const char *mbs)
 {
 	wchar_t *wcs = NULL;
 #if defined(_WIN32)
-	int wcl = MultiByteToWideChar(CP_UTF8, 0, (LPCSTR) mbs, -1, NULL, 0);
-	if (!wcl)
-		return NULL;
-	wcs = new wchar_t[wcl];
-	MultiByteToWideChar(CP_UTF8, 0, (LPCSTR) mbs, -1, (WCHAR *) wcs, wcl);
+	int nResult = MultiByteToWideChar(CP_UTF8, 0, (LPCSTR) mbs, -1, 0, 0);
+	if (nResult == 0) {
+		errorstream << "gettext: MultiByteToWideChar returned null" << std::endl;
+	} else {
+		wcs = new wchar_t[nResult];
+		MultiByteToWideChar(CP_UTF8, 0, (LPCSTR) mbs, -1, (WCHAR *) wcs, nResult);
+	}
 #else
 	size_t wcl = mbstowcs(NULL, mbs, 0);
 	if (wcl == (size_t) -1)
@@ -120,12 +122,13 @@ const wchar_t *narrow_to_wide_c(const char *mbs)
 
 std::wstring narrow_to_wide(const std::string& mbs)
 {
-	const wchar_t *wcs = narrow_to_wide_c(mbs.c_str());
-	if (!wcs)
+	size_t wcl = mbs.size();
+	Buffer<wchar_t> wcs(wcl + 1);
+	size_t l = mbstowcs(*wcs, mbs.c_str(), wcl);
+	if (l == (size_t)(-1))
 		return L"<invalid multibyte string>";
-	std::wstring wstr(wcs);
-	delete [] wcs;
-	return wstr;
+	wcs[l] = 0;
+	return *wcs;
 }
 
 #ifdef __ANDROID__