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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef COMPONENTS_AUTOFILL_CORE_BROWSER_ADDRESS_REWRITER_H_ | |
| 6 #define COMPONENTS_AUTOFILL_CORE_BROWSER_ADDRESS_REWRITER_H_ | |
| 7 | |
| 8 #include "base/strings/string16.h" | |
| 9 #include "base/strings/string_piece.h" | |
| 10 #include "base/strings/string_util.h" | |
| 11 | |
| 12 namespace autofill { | |
| 13 | |
| 14 // A class to apply address normalization rewriting rules to strings. This | |
| 15 // class is a wrapper to a handle for a set of cached rules. As such, it is | |
| 16 // copyable, movable, and passable by value. | |
| 17 class AddressRewriter { | |
| 18 public: | |
| 19 // Get an AddressRewrite instance which applies the rules for |country_code|. | |
| 20 static AddressRewriter ForCountryCode(const base::string16& country_code); | |
| 21 | |
| 22 // Apply the rewrite rules to |text| and return the result. | |
| 23 base::string16 Rewrite(const base::string16& text) const; | |
| 24 | |
| 25 private: | |
| 26 // A handle to the internal rewrite rules this instance is using. | |
| 27 const void* impl_ = nullptr; | |
| 28 }; | |
| 29 | |
| 30 // Implementation details follow. Not part of the public interface. | |
| 31 namespace internal { | |
| 32 | |
| 33 // The structure used to statically define a rule. | |
| 34 struct Rule { | |
| 35 const char* pattern; | |
| 36 const char* rewrite; | |
| 37 }; | |
| 38 | |
| 39 // The structure used to statically define a set of rules for a region. | |
| 40 struct RegionInfo { | |
| 41 const char* region; | |
| 42 const Rule* rules; | |
| 43 size_t num_rules; | |
| 44 | |
| 45 bool operator<(const base::StringPiece& region) const { | |
| 46 return base::CompareCaseInsensitiveASCII(this->region, region) < 0; | |
| 47 } | |
| 48 | |
| 49 bool operator==(const base::StringPiece& region) const { | |
| 50 return base::EqualsCaseInsensitiveASCII(this->region, region); | |
| 51 } | |
| 52 }; | |
| 53 | |
| 54 // The statically defined rule table, sorted by region. | |
| 55 extern const internal::RegionInfo kRuleTable[]; | |
| 56 | |
| 57 // The size (in records) of the statically defined rule table. | |
| 58 extern const size_t kRuleTableSize; | |
| 59 | |
| 60 } // namespace internal | |
| 61 | |
| 62 } // namespace autofill | |
| 63 | |
| 64 #endif // COMPONENTS_AUTOFILL_CORE_BROWSER_ADDRESS_REWRITER_H_ | |
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