From f454ae9cab46ac8c31e909ef1c7728ae7b12bfa3 Mon Sep 17 00:00:00 2001
From: Simon Rozman <simon@rozman.si>
Date: Thu, 5 Jun 2025 12:00:17 +0200
Subject: [PATCH] unicode: add ASCII charset

Signed-off-by: Simon Rozman <simon@rozman.si>
---
 include/stdex/unicode.hpp | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/include/stdex/unicode.hpp b/include/stdex/unicode.hpp
index 34a4d5fef..f61aaccb5 100644
--- a/include/stdex/unicode.hpp
+++ b/include/stdex/unicode.hpp
@@ -1,4 +1,4 @@
-/*
+/*
 	SPDX-License-Identifier: MIT
 	Copyright © 2023-2025 Amebis
 */
@@ -31,6 +31,7 @@ namespace stdex
 #ifdef _WIN32
 		system = CP_ACP,
 		oem = CP_OEMCP,
+		ascii = 20127,
 		utf7 = CP_UTF7,
 		utf8 = CP_UTF8,
 		utf16 = 1200 /*CP_WINUNICODE*/,
@@ -40,6 +41,7 @@ namespace stdex
 		windows1252 = 1252,
 #else
 		system = 0,
+		ascii,
 		utf7,
 		utf8,
 		utf16,
@@ -80,6 +82,18 @@ namespace stdex
 			}
 		};
 		static const std::map<const char*, charset_id, charset_less> charsets = {
+			{ "ANSI_X3.4-1968", charset_id::ascii },
+			{ "ANSI_X3.4-1986", charset_id::ascii },
+			{ "ASCII", charset_id::ascii },
+			{ "CP367", charset_id::ascii },
+			{ "IBM367", charset_id::ascii },
+			{ "ISO-IR-6", charset_id::ascii },
+			{ "ISO646-US", charset_id::ascii },
+			{ "ISO_646.IRV:1991", charset_id::ascii },
+			{ "US", charset_id::ascii },
+			{ "US-ASCII", charset_id::ascii },
+			{ "CSASCII", charset_id::ascii },
+
 			{ "UNICODE-1-1-UTF-7", charset_id::utf7 },
 			{ "UTF-7", charset_id::utf7 },
 			{ "CSUNICODE11UTF7", charset_id::utf7 },
@@ -458,6 +472,7 @@ namespace stdex
 		{
 			static const char* const encodings[static_cast<std::underlying_type_t<charset_id>>(charset_id::_max)] = {
 				"",         // system
+				"ASCII",    // ascii
 				"UTF-7",    // utf7
 				"UTF-8",    // utf8
 #if BYTE_ORDER == BIG_ENDIAN