1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_ANDROID_ADDRESS_DETECTOR_H_
#define CONTENT_RENDERER_ANDROID_ADDRESS_DETECTOR_H_
#pragma once
#include <vector>
#include "base/compiler_specific.h"
#include "base/string_tokenizer.h"
#include "content/renderer/android/content_detector.h"
class AddressDetectorTest;
namespace content {
// Finds a geographical address (currently US only) in the given text string.
class AddressDetector : public ContentDetector {
public:
AddressDetector();
virtual ~AddressDetector();
private:
friend class ::AddressDetectorTest;
// Implementation of ContentDetector.
virtual bool FindContent(const string16::const_iterator& begin,
const string16::const_iterator& end,
size_t* start_pos,
size_t* end_pos,
std::string* content_text) OVERRIDE;
virtual GURL GetIntentURL(const std::string& content_text) OVERRIDE;
virtual size_t GetMaximumContentLength() OVERRIDE;
std::string GetContentText(const string16& text);
// Internal structs and classes. Required to be visible by the unit tests.
struct Word {
string16::const_iterator begin;
string16::const_iterator end;
Word() {}
Word(const string16::const_iterator& begin,
const string16::const_iterator& end);
};
class HouseNumberParser {
public:
HouseNumberParser() {}
bool Parse(const string16::const_iterator& begin,
const string16::const_iterator& end,
Word* word);
private:
static inline bool IsPreDelimiter(char16 character);
static inline bool IsPostDelimiter(char16 character);
inline void RestartOnNextDelimiter();
inline bool CheckFinished(Word* word) const;
inline void AcceptChars(size_t num_chars);
inline void SkipChars(size_t num_chars);
inline void ResetState();
// Iterators to the beginning, current position and ending of the string
// being currently parsed.
string16::const_iterator begin_;
string16::const_iterator it_;
string16::const_iterator end_;
// Number of digits found in the current result candidate.
size_t num_digits_;
// Number of characters previous to the current iterator that belong
// to the current result candidate.
size_t result_chars_;
DISALLOW_COPY_AND_ASSIGN(HouseNumberParser);
};
typedef std::vector<Word> WordList;
typedef StringTokenizerT<string16, string16::const_iterator>
String16Tokenizer;
static bool FindStateStartingInWord(WordList* words,
size_t state_first_word,
size_t* state_last_word,
String16Tokenizer* tokenizer,
size_t* state_index);
static bool IsValidLocationName(const Word& word);
static bool IsZipValid(const Word& word, size_t state_index);
static bool IsZipValidForState(const Word& word, size_t state_index);
DISALLOW_COPY_AND_ASSIGN(AddressDetector);
};
} // namespace content
#endif // CONTENT_RENDERER_ANDROID_ADDRESS_DETECTOR_H_
|
