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// Copyright (C) 2012 The Libphonenumber Authors
//
// 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.
// Author: Patrick Mezard
#ifndef I18N_PHONENUMBERS_GEOCODING_MAPPING_FILE_PROVIDER_H_
#define I18N_PHONENUMBERS_GEOCODING_MAPPING_FILE_PROVIDER_H_
#include <string>
#include "base/basictypes.h"
namespace i18n {
namespace phonenumbers {
using std::string;
struct CountryLanguages;
// A utility which knows the data files that are available for the geocoder to
// use. The data files contain mappings from phone number prefixes to text
// descriptions, and are organized by country calling code and language that the
// text descriptions are in.
class MappingFileProvider {
public:
typedef const CountryLanguages* (*country_languages_getter)(int index);
// Initializes a MappingFileProvider with country_calling_codes, a sorted
// list of country_calling_code_size calling codes, and a function
// get_country_languages(int index) returning the CountryLanguage information
// related to the country code at index in country_calling_codes.
MappingFileProvider(const int* country_calling_codes,
int country_calling_code_size,
country_languages_getter get_country_languages);
// Returns the name of the file that contains the mapping data for the
// country_calling_code in the language specified, or an empty string if no
// such file can be found. language is a two-letter lowercase ISO language
// codes as defined by ISO 639-1. script is a four-letter titlecase (the first
// letter is uppercase and the rest of the letters are lowercase) ISO script
// codes as defined in ISO 15924. region is a two-letter uppercase ISO country
// codes as defined by ISO 3166-1.
const string& GetFileName(int country_calling_code, const string& language,
const string& script, const string& region, string*
filename) const;
private:
void FindBestMatchingLanguageCode(const CountryLanguages* languages,
const string& language,
const string& script,
const string& region,
string* best_match) const;
const int* const country_calling_codes_;
const int country_calling_codes_size_;
const country_languages_getter get_country_languages_;
DISALLOW_COPY_AND_ASSIGN(MappingFileProvider);
};
} // namespace phonenumbers
} // namespace i18n
#endif // I18N_PHONENUMBERS_GEOCODING_MAPPING_FILE_PROVIDER_H_
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