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 <string>
20
21 #include "phonenumbers/base/memory/scoped_ptr.h"
22 #include "phonenumbers/phonemetadata.pb.h"
23 #include "phonenumbers/regexp_adapter.h"
24 #include "phonenumbers/regexp_cache.h"
25 #include "phonenumbers/regexp_factory.h"
26
27 namespace i18n {
28 namespace phonenumbers {
29
30 // Same implementations of AbstractRegExpFactory and RegExpCache in
31 // PhoneNumberUtil (copy from phonenumberutil.cc).
RegexBasedMatcher()32 RegexBasedMatcher::RegexBasedMatcher()
33 : regexp_factory_(new RegExpFactory()),
34 regexp_cache_(new RegExpCache(*regexp_factory_, 128)) {}
35
~RegexBasedMatcher()36 RegexBasedMatcher::~RegexBasedMatcher() {}
37
MatchNationalNumber(const string & number,const PhoneNumberDesc & number_desc,bool allow_prefix_match) const38 bool RegexBasedMatcher::MatchNationalNumber(
39 const string& number,
40 const PhoneNumberDesc& number_desc,
41 bool allow_prefix_match) const {
42 const string& national_number_pattern = number_desc.national_number_pattern();
43 // We don't want to consider it a prefix match when matching non-empty input
44 // against an empty pattern.
45 if (national_number_pattern.empty()) {
46 return false;
47 }
48 return Match(number, national_number_pattern, allow_prefix_match);
49 }
50
Match(const string & number,const string & number_pattern,bool allow_prefix_match) const51 bool RegexBasedMatcher::Match(
52 const string& number,
53 const string& number_pattern,
54 bool allow_prefix_match) const {
55 const RegExp& regexp(regexp_cache_->GetRegExp(number_pattern));
56
57 if (regexp.FullMatch(number)) {
58 return true;
59 }
60 const scoped_ptr<RegExpInput> normalized_number_input(
61 regexp_factory_->CreateInput(number));
62 return regexp.Consume(normalized_number_input.get())
63 ? allow_prefix_match
64 : false;
65 }
66
67 } // namespace phonenumbers
68 } // namespace i18n
69