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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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