1*635a8641SAndroid Build Coastguard Worker // Copyright 2016 The Chromium Authors. All rights reserved.
2*635a8641SAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be
3*635a8641SAndroid Build Coastguard Worker // found in the LICENSE file.
4*635a8641SAndroid Build Coastguard Worker
5*635a8641SAndroid Build Coastguard Worker #include "base/i18n/character_encoding.h"
6*635a8641SAndroid Build Coastguard Worker
7*635a8641SAndroid Build Coastguard Worker #include "base/macros.h"
8*635a8641SAndroid Build Coastguard Worker #include "third_party/icu/source/common/unicode/ucnv.h"
9*635a8641SAndroid Build Coastguard Worker
10*635a8641SAndroid Build Coastguard Worker namespace base {
11*635a8641SAndroid Build Coastguard Worker namespace {
12*635a8641SAndroid Build Coastguard Worker
13*635a8641SAndroid Build Coastguard Worker // An array of all supported canonical encoding names.
14*635a8641SAndroid Build Coastguard Worker const char* const kCanonicalEncodingNames[] = {
15*635a8641SAndroid Build Coastguard Worker "Big5", "EUC-JP", "EUC-KR", "gb18030",
16*635a8641SAndroid Build Coastguard Worker "GBK", "IBM866", "ISO-2022-JP", "ISO-8859-10",
17*635a8641SAndroid Build Coastguard Worker "ISO-8859-13", "ISO-8859-14", "ISO-8859-15", "ISO-8859-16",
18*635a8641SAndroid Build Coastguard Worker "ISO-8859-2", "ISO-8859-3", "ISO-8859-4", "ISO-8859-5",
19*635a8641SAndroid Build Coastguard Worker "ISO-8859-6", "ISO-8859-7", "ISO-8859-8", "ISO-8859-8-I",
20*635a8641SAndroid Build Coastguard Worker "KOI8-R", "KOI8-U", "macintosh", "Shift_JIS",
21*635a8641SAndroid Build Coastguard Worker "UTF-16LE", "UTF-8", "windows-1250", "windows-1251",
22*635a8641SAndroid Build Coastguard Worker "windows-1252", "windows-1253", "windows-1254", "windows-1255",
23*635a8641SAndroid Build Coastguard Worker "windows-1256", "windows-1257", "windows-1258", "windows-874"};
24*635a8641SAndroid Build Coastguard Worker
25*635a8641SAndroid Build Coastguard Worker } // namespace
26*635a8641SAndroid Build Coastguard Worker
GetCanonicalEncodingNameByAliasName(const std::string & alias_name)27*635a8641SAndroid Build Coastguard Worker std::string GetCanonicalEncodingNameByAliasName(const std::string& alias_name) {
28*635a8641SAndroid Build Coastguard Worker for (auto* encoding_name : kCanonicalEncodingNames) {
29*635a8641SAndroid Build Coastguard Worker if (alias_name == encoding_name)
30*635a8641SAndroid Build Coastguard Worker return alias_name;
31*635a8641SAndroid Build Coastguard Worker }
32*635a8641SAndroid Build Coastguard Worker static const char* kStandards[3] = {"HTML", "MIME", "IANA"};
33*635a8641SAndroid Build Coastguard Worker for (auto* standard : kStandards) {
34*635a8641SAndroid Build Coastguard Worker UErrorCode error_code = U_ZERO_ERROR;
35*635a8641SAndroid Build Coastguard Worker const char* canonical_name =
36*635a8641SAndroid Build Coastguard Worker ucnv_getStandardName(alias_name.c_str(), standard, &error_code);
37*635a8641SAndroid Build Coastguard Worker if (U_SUCCESS(error_code) && canonical_name)
38*635a8641SAndroid Build Coastguard Worker return canonical_name;
39*635a8641SAndroid Build Coastguard Worker }
40*635a8641SAndroid Build Coastguard Worker return std::string();
41*635a8641SAndroid Build Coastguard Worker }
42*635a8641SAndroid Build Coastguard Worker } // namespace base
43