mlang: Accept "ascii" as an alias for "us-ascii".

[Huw Davies]

---
 dlls/mlang/mlang.c       | 13 ++++++++++++-
 dlls/mlang/tests/mlang.c | 12 ++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/dlls/mlang/mlang.c b/dlls/mlang/mlang.c
index e44e862..8a4e78f 100644
--- a/dlls/mlang/mlang.c
+++ b/dlls/mlang/mlang.c
@@ -65,6 +65,7 @@ typedef struct
     const char *web_charset;
     const char *header_charset;
     const char *body_charset;
+    const WCHAR *alias;
 } MIME_CP_INFO;
 
 /* These data are based on the codepage info in libs/unicode/cpmap.pl */
@@ -363,6 +364,9 @@ static const MIME_CP_INFO vietnamese_cp[] =
             MIMECONTF_MIME_LATEST,
       "windows-1258", "windows-1258", "windows-1258" }
 };
+
+static const WCHAR asciiW[] = {'a','s','c','i','i',0};
+
 static const MIME_CP_INFO western_cp[] =
 {
     { "IBM EBCDIC (US-Canada)",
@@ -415,7 +419,7 @@ static const MIME_CP_INFO western_cp[] =
       20127, MIMECONTF_MAILNEWS | MIMECONTF_IMPORT | MIMECONTF_EXPORT |
              MIMECONTF_SAVABLE_MAILNEWS | MIMECONTF_VALID |
              MIMECONTF_VALID_NLS | MIMECONTF_MIME_LATEST,
-      "us-ascii", "us-ascii", "us-ascii" },
+      "us-ascii", "us-ascii", "us-ascii", asciiW },
     { "Western European (ISO)",
       28591, MIMECONTF_MAILNEWS | MIMECONTF_BROWSER | MIMECONTF_IMPORT |
              MIMECONTF_SAVABLE_MAILNEWS | MIMECONTF_SAVABLE_BROWSER |
@@ -2600,6 +2604,13 @@ static HRESULT WINAPI fnIMultiLanguage3_GetCharsetInfo(
                 strcpyW(pCharsetInfo->wszCharset, csetW);
                 return S_OK;
             }
+            if (mlang_data[i].mime_cp_info[n].alias && !lstrcmpiW(Charset, mlang_data[i].mime_cp_info[n].alias))
+            {
+                pCharsetInfo->uiCodePage = mlang_data[i].family_codepage;
+                pCharsetInfo->uiInternetEncoding = mlang_data[i].mime_cp_info[n].cp;
+                strcpyW(pCharsetInfo->wszCharset, mlang_data[i].mime_cp_info[n].alias);
+                return S_OK;
+            }
         }
     }
 
diff --git a/dlls/mlang/tests/mlang.c b/dlls/mlang/tests/mlang.c
index 1d52af6..a840b4a 100644
--- a/dlls/mlang/tests/mlang.c
+++ b/dlls/mlang/tests/mlang.c
@@ -696,6 +696,17 @@ static void test_EnumCodePages(IMultiLanguage2 *iML2, DWORD flags)
     IEnumCodePage_Release(iEnumCP);
 }
 
+static void test_GetCharsetInfo_alias(IMultiLanguage *ml)
+{
+    WCHAR asciiW[] = {'a','s','c','i','i',0};
+    MIMECSETINFO info;
+    HRESULT hr;
+
+    hr = IMultiLanguage_GetCharsetInfo(ml, asciiW, &info);
+    ok(hr == S_OK, "got %08x\n", hr);
+    ok(!lstrcmpW(info.wszCharset, asciiW), "got %s\n", wine_dbgstr_w(info.wszCharset));
+}
+
 static void scriptinfo_cmp(SCRIPTINFO *sinfo1, SCRIPTINFO *sinfo2)
 {
     ok(sinfo1->ScriptId == sinfo2->ScriptId, "ScriptId mismatch: %d != %d\n", sinfo1->ScriptId, sinfo2->ScriptId);
@@ -2000,6 +2011,7 @@ START_TEST(mlang)
 
     test_GetNumberOfCodePageInfo((IMultiLanguage2 *)iML);
     test_IMLangConvertCharset(iML);
+    test_GetCharsetInfo_alias(iML);
     IMultiLanguage_Release(iML);
 
 
-- 
1.8.0