[rac] Download all rules for a country code in libaddressinput.

third_party/libaddressinput/chromium/cpp/src/ruleset.h

+// Copyright (C) 2014 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef I18N_ADDRESSINPUT_RULESET_H_
+#define I18N_ADDRESSINPUT_RULESET_H_
+
+#include <libaddressinput/util/basictypes.h>
+#include <libaddressinput/util/scoped_ptr.h>
+
+#include <map>
+#include <string>
+
+namespace i18n {
+namespace addressinput {
+
+class Rule;
+
+// A recursive data structure that stores a set of rules for a region. Can store
+// the rules for a country, its administrative areas, localities, and dependent
+// localities, in addition to the language-specific rules.
+//
+// Example for Canada and some of its provinces:
+//                   CA-->fr
+//                   |
+// -------------------------------------
+// |        |        |        |        |
+// v        v        v        v        v
+// AB-->fr  BC-->fr  MB-->fr  NB-->fr  NL-->fr
+//
+// The rules in Canada are in English by default. Each rule also has a French
+// language version.
+class Ruleset {
+ public:
+  // Builds a ruleset with a region-wide |rule| in the default language of the
+  // country. The |rule| should not be NULL.
+  explicit Ruleset(scoped_ptr<Rule> rule);
+
+  ~Ruleset();
+
+  // Returns the region-wide rule in the default language of the country.
+  const Rule& rule() const { return *rule_.get(); }
+
+  // Adds and returns a ruleset for |sub_region| with the subregion-wide |rule|
+  // in the default language of the country. The caller does not own the result.
+  Ruleset* AddSubRegion(const std::string& sub_region, scoped_ptr<Rule> rule);
+
+  // Adds a language-specific |rule| for |language_code| for this region.
+  void AddLanguageCode(const std::string& language_code, scoped_ptr<Rule> rule);
+
+  // Returns the set of rules for |sub_region|. The result can be NULL. The
+  // caller does not own the result.
+  Ruleset* GetSubRegion(const std::string& sub_region) const;
+
+  // Returns the language-specific rule for |language_code|. The result can be
+  // NULL. The caller does not own the result.
+  const Rule* GetLanguageCode(const std::string& language_code) const;
+
+ private:
+  // The region-wide rule in the default language of the country.
+  scoped_ptr<const Rule> rule_;
+
+  // Owned rulesets for sub-regions.
+  std::map<std::string, Ruleset*> sub_regions_;
+
+  // Owned language-specific rules for the region.
+  std::map<std::string, const Rule*> language_codes_;
+
+  DISALLOW_COPY_AND_ASSIGN(Ruleset);
+};
+
+}  // namespace addressinput
+}  // namespace i18n
+
+#endif  // I18N_ADDRESSINPUT_RULESET_H_