| // 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. |
| |
| #include <string> |
| #include <vector> |
| |
| #include <libaddressinput/address_data.h> |
| #include <libaddressinput/address_field.h> |
| |
| #include "format_element.h" |
| #include "language.h" |
| #include "region_data_constants.h" |
| #include "rule.h" |
| |
| namespace i18n { |
| namespace addressinput { |
| |
| namespace { |
| |
| const char kCommaSeparator[] = ", "; |
| const char kSpaceSeparator[] = " "; |
| const char kArabicCommaSeparator[] = "\xD8\x8C" " "; /* "، " */ |
| |
| const char* kLanguagesThatUseSpace[] = { |
| "th", |
| "ko" |
| }; |
| |
| const char* kLanguagesThatHaveNoSeparator[] = { |
| "ja", |
| "zh" // All Chinese variants. |
| }; |
| |
| // This data is based on CLDR, for languages that are in official use in some |
| // country, where Arabic is the most likely script tag. |
| // TODO: Consider supporting variants such as tr-Arab by detecting the script |
| // code. |
| const char* kLanguagesThatUseAnArabicComma[] = { |
| "ar", |
| "az", |
| "fa", |
| "kk", |
| "ku", |
| "ky", |
| "ps", |
| "tg", |
| "tk", |
| "ur", |
| "uz" |
| }; |
| |
| // Case insensitive matcher for language tags. |
| struct LanguageMatcher { |
| LanguageMatcher(const std::string& tag) : tag(tag) {} |
| std::string tag; |
| bool operator() (const std::string& s) { |
| return strcasecmp(tag.c_str(), s.c_str()) == 0; |
| } |
| }; |
| |
| std::string GetLineSeparatorForLanguage(const std::string& language_tag) { |
| Language address_language(language_tag); |
| |
| // First deal with explicit script tags. |
| if (address_language.has_latin_script) { |
| return kCommaSeparator; |
| } |
| |
| // Now guess something appropriate based on the base language. |
| std::string base_language = address_language.base; |
| if (std::find_if(kLanguagesThatUseSpace, |
| kLanguagesThatUseSpace + arraysize(kLanguagesThatUseSpace), |
| LanguageMatcher(base_language)) != |
| kLanguagesThatUseSpace + arraysize(kLanguagesThatUseSpace)) { |
| return kSpaceSeparator; |
| } else if (std::find_if(kLanguagesThatHaveNoSeparator, |
| kLanguagesThatHaveNoSeparator + |
| arraysize(kLanguagesThatHaveNoSeparator), |
| LanguageMatcher(base_language)) != |
| kLanguagesThatHaveNoSeparator + |
| arraysize(kLanguagesThatHaveNoSeparator)) { |
| return ""; |
| } else if (std::find_if(kLanguagesThatUseAnArabicComma, |
| kLanguagesThatUseAnArabicComma + |
| arraysize(kLanguagesThatUseAnArabicComma), |
| LanguageMatcher(base_language)) != |
| kLanguagesThatUseAnArabicComma + |
| arraysize(kLanguagesThatUseAnArabicComma)) { |
| return kArabicCommaSeparator; |
| } |
| // Either the language is a latin-script language, or no language was |
| // specified. In the latter case we still return ", " as the most common |
| // separator in use. In countries that don't use this, e.g. Thailand, |
| // addresses are often written in latin script where this would still be |
| // appropriate, so this is a reasonable default in the absence of information. |
| return kCommaSeparator; |
| } |
| |
| void CombineLinesForLanguage( |
| const std::vector<std::string>& lines, const std::string& language_tag, |
| std::string *line) { |
| if (lines.size() > 0) { |
| line->assign(lines[0]); |
| } |
| std::string separator = GetLineSeparatorForLanguage(language_tag); |
| for (std::vector<std::string>::const_iterator it = lines.begin() + 1; |
| it < lines.end(); ++it) { |
| line->append(separator); |
| line->append(*it); |
| } |
| } |
| |
| } // namespace |
| |
| void GetFormattedNationalAddress( |
| const AddressData& address_data, std::vector<std::string>* lines) { |
| assert(lines != NULL); |
| lines->clear(); |
| |
| Rule rule; |
| rule.CopyFrom(Rule::GetDefault()); |
| // TODO: Eventually, we should get the best rule for this country and |
| // language, rather than just for the country. |
| rule.ParseSerializedRule(RegionDataConstants::GetRegionData( |
| address_data.region_code)); |
| |
| Language language(address_data.language_code); |
| |
| // If latinized rules are available and the |language_code| of this address is |
| // explicitly tagged as being Latin, then use the latinized formatting rules. |
| const std::vector<FormatElement>& format = |
| language.has_latin_script && !rule.GetLatinFormat().empty() |
| ? rule.GetLatinFormat() : rule.GetFormat(); |
| |
| std::string line; |
| for (size_t i = 0; i < format.size(); ++i) { |
| FormatElement element = format[i]; |
| if (element.IsNewline()) { |
| if (!line.empty()) { |
| lines->push_back(line); |
| line.clear(); |
| } |
| } else if (element.IsField()) { |
| AddressField field = element.GetField(); |
| if (field == STREET_ADDRESS) { |
| // The field "street address" represents the street address lines of an |
| // address, so there can be multiple values. |
| if (!line.empty()) { |
| lines->push_back(line); |
| line.clear(); |
| } |
| lines->insert(lines->end(), address_data.address_line.begin(), |
| address_data.address_line.end()); |
| } else { |
| line.append(address_data.GetFieldValue(field)); |
| } |
| } else { |
| line.append(element.GetLiteral()); |
| } |
| } |
| if (!line.empty()) { |
| lines->push_back(line); |
| } |
| } |
| |
| void GetFormattedNationalAddressLine( |
| const AddressData& address_data, std::string* line) { |
| std::vector<std::string> address_lines; |
| GetFormattedNationalAddress(address_data, &address_lines); |
| CombineLinesForLanguage(address_lines, address_data.language_code, line); |
| } |
| |
| void GetStreetAddressLinesAsSingleLine( |
| const AddressData& address_data, std::string* line) { |
| CombineLinesForLanguage( |
| address_data.address_line, address_data.language_code, line); |
| } |
| |
| } // namespace addressinput |
| } // namespace i18n |