| // Copyright 2020 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef COMPONENTS_AUTOFILL_CORE_COMMON_LANGUAGE_CODE_H_ |
| #define COMPONENTS_AUTOFILL_CORE_COMMON_LANGUAGE_CODE_H_ |
| |
| #include <string> |
| |
| #include "base/types/strong_alias.h" |
| |
| namespace autofill { |
| |
| // A language code is a lowercase alphabetic string of length up to 3, with the |
| // exception of "zh-*", in particular "zh-CN" and "zh-TW", and "mni-*", in |
| // particular "mni-Mtei". A non-exhaustive list of known languages is |
| // translate::kDefaultSupportedLanguages. |
| // |
| // The string "und" represents an undetermined or unknown language. For some |
| // reason, we sometimes also sometimes see "unknown" and perhaps other strings. |
| // See crbug.com/1423819 for an inconclusive discussion. |
| // |
| // C++ small string optimization keeps these objects lightweight so that copying |
| // should not be a worry. |
| using LanguageCode = base::StrongAlias<class LanguageCodeTag, std::string>; |
| |
| } // namespace autofill |
| |
| #endif // COMPONENTS_AUTOFILL_CORE_COMMON_LANGUAGE_CODE_H_ |
