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      1 // Copyright (C) 2014 Google Inc.
      2 //
      3 // Licensed under the Apache License, Version 2.0 (the "License");
      4 // you may not use this file except in compliance with the License.
      5 // You may obtain a copy of the License at
      6 //
      7 // http://www.apache.org/licenses/LICENSE-2.0
      8 //
      9 // Unless required by applicable law or agreed to in writing, software
     10 // distributed under the License is distributed on an "AS IS" BASIS,
     11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 // See the License for the specific language governing permissions and
     13 // limitations under the License.
     14 
     15 #include <libaddressinput/address_data.h>
     16 
     17 #include <libaddressinput/address_field.h>
     18 #include <libaddressinput/util/basictypes.h>
     19 
     20 #include <algorithm>
     21 #include <cassert>
     22 #include <cstddef>
     23 #include <functional>
     24 #include <ostream>
     25 #include <string>
     26 #include <vector>
     27 
     28 #include <re2/re2.h>
     29 
     30 namespace i18n {
     31 namespace addressinput {
     32 
     33 namespace {
     34 
     35 // Mapping from AddressField value to pointer to AddressData member.
     36 std::string AddressData::*kStringField[] = {
     37   &AddressData::region_code,
     38   &AddressData::administrative_area,
     39   &AddressData::locality,
     40   &AddressData::dependent_locality,
     41   &AddressData::sorting_code,
     42   &AddressData::postal_code,
     43   NULL,
     44   &AddressData::organization,
     45   &AddressData::recipient
     46 };
     47 
     48 // Mapping from AddressField value to pointer to AddressData member.
     49 const std::vector<std::string> AddressData::*kVectorStringField[] = {
     50   NULL,
     51   NULL,
     52   NULL,
     53   NULL,
     54   NULL,
     55   NULL,
     56   &AddressData::address_line,
     57   NULL,
     58   NULL
     59 };
     60 
     61 COMPILE_ASSERT(arraysize(kStringField) == arraysize(kVectorStringField),
     62                field_mapping_array_size_mismatch);
     63 
     64 // A string is considered to be "empty" not only if it actually is empty, but
     65 // also if it contains nothing but whitespace.
     66 bool IsStringEmpty(const std::string& str) {
     67   static const RE2 kMatcher("\\S");
     68   return str.empty() || !RE2::PartialMatch(str, kMatcher);
     69 }
     70 
     71 }  // namespace
     72 
     73 bool AddressData::IsFieldEmpty(AddressField field) const {
     74   assert(field >= 0);
     75   assert(static_cast<size_t>(field) < arraysize(kStringField));
     76   if (kStringField[field] != NULL) {
     77     const std::string& value = GetFieldValue(field);
     78     return IsStringEmpty(value);
     79   } else {
     80     const std::vector<std::string>& value = GetRepeatedFieldValue(field);
     81     return std::find_if(value.begin(),
     82                         value.end(),
     83                         std::not1(std::ptr_fun(&IsStringEmpty))) == value.end();
     84   }
     85 }
     86 
     87 const std::string& AddressData::GetFieldValue(
     88     AddressField field) const {
     89   assert(field >= 0);
     90   assert(static_cast<size_t>(field) < arraysize(kStringField));
     91   assert(kStringField[field] != NULL);
     92   return this->*kStringField[field];
     93 }
     94 
     95 void AddressData::SetFieldValue(AddressField field, const std::string& value) {
     96   assert(field >= 0);
     97   assert(static_cast<size_t>(field) < arraysize(kStringField));
     98   assert(kStringField[field] != NULL);
     99   (this->*kStringField[field]).assign(value);
    100 }
    101 
    102 const std::vector<std::string>& AddressData::GetRepeatedFieldValue(
    103     AddressField field) const {
    104   assert(IsRepeatedFieldValue(field));
    105   return this->*kVectorStringField[field];
    106 }
    107 
    108 bool AddressData::operator==(const AddressData& other) const {
    109   return region_code == other.region_code &&
    110          address_line == other.address_line &&
    111          administrative_area == other.administrative_area &&
    112          locality == other.locality &&
    113          dependent_locality == other.dependent_locality &&
    114          postal_code == other.postal_code &&
    115          sorting_code == other.sorting_code &&
    116          language_code == other.language_code &&
    117          organization == other.organization &&
    118          recipient == other.recipient;
    119 }
    120 
    121 // static
    122 bool AddressData::IsRepeatedFieldValue(AddressField field) {
    123   assert(field >= 0);
    124   assert(static_cast<size_t>(field) < arraysize(kVectorStringField));
    125   return kVectorStringField[field] != NULL;
    126 }
    127 
    128 }  // namespace addressinput
    129 }  // namespace i18n
    130 
    131 std::ostream& operator<<(std::ostream& o,
    132                          const i18n::addressinput::AddressData& address) {
    133   o << "region_code: \"" << address.region_code << "\"\n"
    134     "administrative_area: \"" << address.administrative_area << "\"\n"
    135     "locality: \"" << address.locality << "\"\n"
    136     "dependent_locality: \"" << address.dependent_locality << "\"\n"
    137     "postal_code: \"" << address.postal_code << "\"\n"
    138     "sorting_code: \"" << address.sorting_code << "\"\n";
    139 
    140   // TODO: Update the field order in the .h file to match the order they are
    141   // printed out here, for consistency.
    142   for (std::vector<std::string>::const_iterator it =
    143            address.address_line.begin();
    144        it != address.address_line.end(); ++it) {
    145     o << "address_line: \"" << *it << "\"\n";
    146   }
    147 
    148   o << "language_code: \"" << address.language_code << "\"\n"
    149     "organization: \"" << address.organization << "\"\n"
    150     "recipient: \"" << address.recipient << "\"\n";
    151 
    152   return o;
    153 }
    154