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| 1 // Copyright 2013 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 BASE_INI_PARSER_H_ |
| 6 #define BASE_INI_PARSER_H_ |
| 7 |
| 8 #include <string> |
| 9 |
| 10 #include "base/base_export.h" |
| 11 #include "base/basictypes.h" |
| 12 #include "base/values.h" |
| 13 |
| 14 namespace base { |
| 15 |
| 16 // Parses INI files in a string. Users should in inherit from this class. |
| 17 // This is a very basic INI parser with these characteristics: |
| 18 // - Ignores blank lines. |
| 19 // - Ignores comment lines beginning with '#' or ';'. |
| 20 // - Duplicate key names in the same section will simply cause repeated calls |
| 21 // to HandleTriplet with the same |section| and |key| parameters. |
| 22 // - No escape characters supported. |
| 23 // - Global properties result in calls to HandleTriplet with an empty string in |
| 24 // the |section| argument. |
| 25 // - Section headers begin with a '[' character. It is recommended, but |
| 26 // not required to close the header bracket with a ']' character. All |
| 27 // characters after a closing ']' character is ignored. |
| 28 // - Key value pairs are indicated with an '=' character. Whitespace is not |
| 29 // ignored. Quoting is not supported. Everything before the first '=' |
| 30 // is considered the |key|, and everything after is the |value|. |
| 31 class BASE_EXPORT INIParser { |
| 32 public: |
| 33 INIParser(); |
| 34 virtual ~INIParser(); |
| 35 |
| 36 // May only be called once per instance. |
| 37 void Parse(const std::string& content); |
| 38 |
| 39 private: |
| 40 virtual void HandleTriplet(const std::string& section, |
| 41 const std::string& key, |
| 42 const std::string& value) = 0; |
| 43 |
| 44 bool used_; |
| 45 }; |
| 46 |
| 47 // Parsed values are stored as strings at the "section.key" path. Triplets with |
| 48 // |section| or |key| parameters containing '.' are ignored. |
| 49 class BASE_EXPORT DictionaryValueINIParser : public INIParser { |
| 50 public: |
| 51 DictionaryValueINIParser(); |
| 52 virtual ~DictionaryValueINIParser(); |
| 53 |
| 54 const DictionaryValue& root() const { return root_; } |
| 55 |
| 56 private: |
| 57 // INIParser implementation. |
| 58 virtual void HandleTriplet(const std::string& section, |
| 59 const std::string& key, |
| 60 const std::string& value) OVERRIDE; |
| 61 |
| 62 DictionaryValue root_; |
| 63 |
| 64 DISALLOW_COPY_AND_ASSIGN(DictionaryValueINIParser); |
| 65 }; |
| 66 |
| 67 } // namespace base |
| 68 |
| 69 #endif // BASE_INI_PARSER_H_ |
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