import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

intl/uconv/ucvko/nsCP949ToUnicode.cpp

@@ -0,0 +1,60 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsCP949ToUnicode.h"
+#include "nsUCvKODll.h"
+#include "nsUCConstructors.h"
+
+//----------------------------------------------------------------------
+// Global functions and data [declaration]
+
+static const uScanClassID g_CP949ScanClassIDs[] = {
+  u1ByteCharset,
+// This is necessary to decode 8byte sequence representation of Hangul
+// syllables. This representation is uniq to EUC-KR and is not used
+// in CP949. However, this converter is for both EUC-KR and CP949
+// so that this class ID is put here. See bug 131388. 
+  uDecomposedHangulCharset,  
+  u2BytesGRCharset,       // EUC_KR
+  u2BytesGR128Charset,    // CP949 High
+  u2BytesCharset          // CP949 Low
+};
+
+// CP949(non-EUC-KR portion) to Unicode
+static const uint16_t g_utCP949NoKSCHangulMapping[] = {
+#include "u20cp949hangul.ut"
+};
+
+static const uRange g_CP949Ranges[] = {
+  { 0x00, 0x7F },
+  { 0xA4, 0xA4 },   // 8byte seq. for Hangul syllables not available
+                    // in pre-composed form in KS X 1001
+  { 0xA1, 0xFE },
+  { 0xA1, 0xC6 },   // CP949 extension B. ends at 0xC6.
+  { 0x80, 0xA0 }
+};
+
+static const uint16_t *g_CP949MappingTableSet [] ={
+  g_ASCIIMappingTable,
+  g_HangulNullMapping,
+  g_utKSC5601Mapping,
+  g_utCP949NoKSCHangulMapping,
+  g_utCP949NoKSCHangulMapping
+//g_CP949HighMapping,
+//g_CP949LowMapping
+};
+
+
+nsresult
+nsCP949ToUnicodeConstructor(nsISupports *aOuter, REFNSIID aIID,
+                            void **aResult)
+{
+  return CreateMultiTableDecoder(sizeof(g_CP949Ranges) / sizeof(g_CP949Ranges[0]),
+                                 (const uRange*) &g_CP949Ranges,
+                                 (uScanClassID*) &g_CP949ScanClassIDs,
+                                 (uMappingTable**) &g_CP949MappingTableSet, 1,
+                                 aOuter, aIID, aResult);
+}
+