| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/i18n/timezone.h" |
| |
| #include <memory> |
| #include <string> |
| |
| #include "third_party/icu/source/common/unicode/unistr.h" |
| #include "third_party/icu/source/i18n/unicode/timezone.h" |
| |
| namespace base { |
| |
| std::string CountryCodeForCurrentTimezone() { |
| std::unique_ptr<icu::TimeZone> zone(icu::TimeZone::createDefault()); |
| icu::UnicodeString id; |
| // ICU returns '001' (world) for Etc/GMT. Preserve the old behavior |
| // only for Etc/GMT while returning an empty string for Etc/UTC and |
| // Etc/UCT because they're less likely to be chosen by mistake in UK in |
| // place of Europe/London (Briitish Time). |
| if (zone->getID(id) == UNICODE_STRING_SIMPLE("Etc/GMT")) |
| return "GB"; |
| char region_code[4]; |
| UErrorCode status = U_ZERO_ERROR; |
| int length = zone->getRegion(id, region_code, 4, status); |
| // Return an empty string if region_code is a 3-digit numeric code such |
| // as 001 (World) for Etc/UTC, Etc/UCT. |
| return (U_SUCCESS(status) && length == 2) |
| ? std::string(region_code, static_cast<size_t>(length)) |
| : std::string(); |
| } |
| |
| } // namespace base |
