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| 1 // Copyright (c) 2012 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 ANDROID_WEBVIEW_NATIVE_ADDRESS_PARSER_INTERNAL_H_ | |
| 6 #define ANDROID_WEBVIEW_NATIVE_ADDRESS_PARSER_INTERNAL_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "base/macros.h" | |
| 13 #include "base/strings/string_tokenizer.h" | |
| 14 | |
| 15 namespace android_webview { | |
| 16 | |
| 17 namespace address_parser { | |
| 18 | |
| 19 // Internal classes and functions for address parsing. | |
| 20 namespace internal { | |
| 21 | |
| 22 // Exposed for tests. | |
| 23 struct Word { | |
| 24 base::string16::const_iterator begin; | |
| 25 base::string16::const_iterator end; | |
| 26 | |
| 27 Word(); | |
| 28 Word(const base::string16::const_iterator& begin, | |
| 29 const base::string16::const_iterator& end); | |
| 30 Word(const Word& other); | |
| 31 }; | |
| 32 | |
| 33 // Exposed for tests. | |
| 34 class HouseNumberParser { | |
| 35 public: | |
| 36 HouseNumberParser(); | |
| 37 | |
| 38 bool Parse(const base::string16::const_iterator& begin, | |
| 39 const base::string16::const_iterator& end, | |
| 40 Word* word); | |
| 41 | |
| 42 private: | |
| 43 static inline bool IsPreDelimiter(base::char16 character); | |
| 44 static inline bool IsPostDelimiter(base::char16 character); | |
| 45 inline void RestartOnNextDelimiter(); | |
| 46 | |
| 47 inline bool CheckFinished(Word* word) const; | |
| 48 inline void AcceptChars(size_t num_chars); | |
| 49 inline void SkipChars(size_t num_chars); | |
| 50 inline void ResetState(); | |
| 51 | |
| 52 // Iterators to the beginning, current position and ending of the string | |
| 53 // being currently parsed. | |
| 54 base::string16::const_iterator begin_; | |
| 55 base::string16::const_iterator it_; | |
| 56 base::string16::const_iterator end_; | |
| 57 | |
| 58 // Number of digits found in the current result candidate. | |
| 59 size_t num_digits_; | |
| 60 | |
| 61 // Number of characters previous to the current iterator that belong | |
| 62 // to the current result candidate. | |
| 63 size_t result_chars_; | |
| 64 | |
| 65 DISALLOW_COPY_AND_ASSIGN(HouseNumberParser); | |
| 66 }; | |
| 67 | |
| 68 typedef std::vector<Word> WordList; | |
| 69 typedef base::StringTokenizerT<base::string16, base::string16::const_iterator> | |
| 70 String16Tokenizer; | |
| 71 | |
| 72 // These are exposed for tests. | |
| 73 bool FindStateStartingInWord(WordList* words, | |
| 74 size_t state_first_word, | |
| 75 size_t* state_last_word, | |
| 76 String16Tokenizer* tokenizer, | |
| 77 size_t* state_index); | |
| 78 | |
| 79 bool IsValidLocationName(const Word& word); | |
| 80 bool IsZipValid(const Word& word, size_t state_index); | |
| 81 bool IsZipValidForState(const Word& word, size_t state_index); | |
| 82 | |
| 83 } // namespace internal | |
| 84 | |
| 85 } // namespace address_parser | |
| 86 | |
| 87 } // namespace android_webview | |
| 88 | |
| 89 #endif // ANDROID_WEBVIEW_NATIVE_ADDRESS_PARSER_INTERNAL_H_ | |
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