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// 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_COMMON_ADDRESS_PARSER_INTERNAL_H_
#define CONTENT_COMMON_ADDRESS_PARSER_INTERNAL_H_
#include <vector>
#include "base/strings/string_tokenizer.h"
#include "content/common/content_export.h"
namespace content {
namespace address_parser {
// Internal classes and functions for address parsing.
namespace internal {
// Exposed for tests.
struct CONTENT_EXPORT Word {
string16::const_iterator begin;
string16::const_iterator end;
Word() {}
Word(const string16::const_iterator& begin,
const string16::const_iterator& end);
};
// Exposed for tests.
class CONTENT_EXPORT 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 base::StringTokenizerT<string16, string16::const_iterator>
String16Tokenizer;
// These are exposed for tests.
CONTENT_EXPORT bool FindStateStartingInWord(WordList* words,
size_t state_first_word,
size_t* state_last_word,
String16Tokenizer* tokenizer,
size_t* state_index);
CONTENT_EXPORT bool IsValidLocationName(const Word& word);
CONTENT_EXPORT bool IsZipValid(const Word& word, size_t state_index);
CONTENT_EXPORT bool IsZipValidForState(const Word& word, size_t state_index);
} // namespace internal
} // namespace address_parser
} // namespace content
#endif // CONTENT_COMMON_ADDRESS_PARSER_INTERNAL_H_
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