[Fix] mpt/string_transcode/transcode.hpp: Try to work-around Cygwin l…

…ocale handling problems the same way we did in libopenmpt 0.5.x and earlier. See <https://cygwin.com/cgit/cygwin-packages/libopenmpt/tree/libopenmpt-0.7.12-1.src.patch?id=c4baa491e8a0975a1c7e0dfdf5ddf208d5b4ba6b>. git-svn-id: https://source.openmpt.org/svn/openmpt/trunk/OpenMPT@22750 56274372-70c3-4bfc-bfc3-4c3a0b034d27
OpenMPT · Jan 3, 2025 · 036af51 · 036af51
1 parent 4f81905
commit 036af51
Showing 1 changed file with 101 additions and 0 deletions.
diff --git a/src/mpt/string_transcode/transcode.hpp b/src/mpt/string_transcode/transcode.hpp
@@ -11,6 +11,7 @@
 #include "mpt/base/namespace.hpp"
 #include "mpt/base/saturate_cast.hpp"
 #include "mpt/detect/mfc.hpp"
+#include "mpt/out_of_memory/out_of_memory.hpp"
 #include "mpt/string/types.hpp"
 #include "mpt/string/utility.hpp"
 
@@ -1694,10 +1695,60 @@ inline Tdststring encode(logical_encoding encoding, const mpt::widestring & src)
 #elif !defined(MPT_COMPILER_QUIRK_NO_WCHAR)
 	switch (encoding) {
 		case logical_encoding::locale:
+#if defined(MPT_LIBCXX_QUIRK_BROKEN_USER_LOCALE)
+			try {
+				return encode_locale<Tdststring>(std::locale(""), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			try {
+				return encode_locale<Tdststring>(std::locale(), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			try {
+				return encode_locale<Tdststring>(std::locale::classic(), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			return encode_ascii<Tdststring>(src);
+#else
 			return encode_locale<Tdststring>(std::locale(""), src);
+#endif
 			break;
 		case logical_encoding::active_locale:
+#if defined(MPT_LIBCXX_QUIRK_BROKEN_ACTIVE_LOCALE)
+			try {
+				return encode_locale<Tdststring>(std::locale(), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			try {
+				return encode_locale<Tdststring>(std::locale(""), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			try {
+				return encode_locale<Tdststring>(std::locale::classic(), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			return encode_ascii<Tdststring>(src);
+#else
 			return encode_locale<Tdststring>(std::locale(), src);
+#endif
 			break;
 	}
 	throw std::domain_error("unsupported encoding");
@@ -1865,10 +1916,60 @@ inline mpt::widestring decode(logical_encoding encoding, const Tsrcstring & src)
 #elif !defined(MPT_COMPILER_QUIRK_NO_WCHAR)
 	switch (encoding) {
 		case logical_encoding::locale:
+#if defined(MPT_LIBCXX_QUIRK_BROKEN_USER_LOCALE)
+			try {
+				return decode_locale(std::locale(""), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			try {
+				return decode_locale(std::locale(), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			try {
+				return decode_locale(std::locale::classic(), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			return decode_ascii(src);
+#else
 			return decode_locale(std::locale(""), src);
+#endif
 			break;
 		case logical_encoding::active_locale:
+#if defined(MPT_LIBCXX_QUIRK_BROKEN_USER_LOCALE)
+			try {
+				return decode_locale(std::locale(), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			try {
+				return decode_locale(std::locale(""), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			try {
+				return decode_locale(std::locale::classic(), src);
+			} catch (mpt::out_of_memory e) {
+				mpt::rethrow_out_of_memory(e);
+			} catch (...) {
+				// nothing
+			}
+			return decode_ascii(src);
+#else
 			return decode_locale(std::locale(), src);
+#endif
 			break;
 	}
 	throw std::domain_error("unsupported encoding");