// 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 #include #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 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(length)) : std::string(); } } // namespace base