cpp/src/phonenumbers/regex_based_matcher.cc

   1 /*
   2  * Copyright (C) 2014 The Libphonenumber Authors
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include "phonenumbers/regex_based_matcher.h"
  18
  19 #include <memory>
  20 #include <string>
  21
  22 #include "phonenumbers/base/memory/scoped_ptr.h"
  23 #include "phonenumbers/phonemetadata.pb.h"
  24 #include "phonenumbers/regexp_adapter.h"
  25 #include "phonenumbers/regexp_cache.h"
  26 #include "phonenumbers/regexp_factory.h"
  27
  28 namespace i18n {
  29 namespace phonenumbers {
  30
  31 using std::string;
  32
  33 // Same implementations of AbstractRegExpFactory and RegExpCache in
  34 // PhoneNumberUtil (copy from phonenumberutil.cc).
  35 RegexBasedMatcher::RegexBasedMatcher()
  36     : regexp_factory_(new RegExpFactory()),
  37       regexp_cache_(new RegExpCache(*regexp_factory_, 128)) {}
  38
  39 RegexBasedMatcher::~RegexBasedMatcher() {}
  40
  41 bool RegexBasedMatcher::MatchesNationalNumber(
  42     const string& national_number, const PhoneNumberDesc& number_desc,
  43     bool allow_prefix_match) const {
  44   return Match(national_number, number_desc.national_number_pattern(),
  45                allow_prefix_match);
  46 }
  47
  48 bool RegexBasedMatcher::MatchesPossibleNumber(
  49     const string& national_number, const PhoneNumberDesc& number_desc) const {
  50   return Match(national_number, number_desc.possible_number_pattern(), false);
  51 }
  52
  53 bool RegexBasedMatcher::Match(const string& national_number,
  54                               const string& number_pattern,
  55                               bool allow_prefix_match) const {
  56   const RegExp& regexp(regexp_cache_->GetRegExp(number_pattern));
  57
  58   if (allow_prefix_match) {
  59     const scoped_ptr<RegExpInput> normalized_number_input(
  60         regexp_factory_->CreateInput(national_number));
  61     return regexp.Consume(normalized_number_input.get());
  62   } else {
  63     return regexp.FullMatch(national_number);
  64   }
  65 }
  66
  67 }  // namespace phonenumbers
  68 }  // namespace i18n