1 | /*! |
---|
2 | * @file ini_parser.h |
---|
3 | * A small ini file parser |
---|
4 | * |
---|
5 | * Can be used to find a defined [Section] in an ini file and get the VarName = Value entries |
---|
6 | */ |
---|
7 | |
---|
8 | #ifndef _INI_PARSER_H |
---|
9 | #define _INI_PARSER_H |
---|
10 | |
---|
11 | #define PARSELINELENGHT 512 //!< how many chars to read at once |
---|
12 | |
---|
13 | #include <string> |
---|
14 | #include <list> |
---|
15 | |
---|
16 | //! ini-file parser |
---|
17 | /** |
---|
18 | * This class can be used to load an initializer file and parse it's contents for variablename=value pairs. |
---|
19 | */ |
---|
20 | class IniParser |
---|
21 | { |
---|
22 | public: |
---|
23 | //////////////////////////////////// |
---|
24 | /// A Node for a Ini-Node. The base of all INI-elements. |
---|
25 | class Node |
---|
26 | { |
---|
27 | public: |
---|
28 | Node(const std::string& name, const std::string& comment = ""); |
---|
29 | virtual ~Node() {}; |
---|
30 | const std::string& name() const { return _name; }; |
---|
31 | const std::string& comment() const { return _comment; }; |
---|
32 | void setName(const std::string& name) { this->_name = name; }; |
---|
33 | void setComment(const std::string& comment) { this->_comment = comment; }; |
---|
34 | |
---|
35 | bool operator==(const std::string& name) const { return _name == name; }; |
---|
36 | bool operator==(const Node& node) const { return this->_name == node._name; }; |
---|
37 | |
---|
38 | virtual void debug() const = 0; |
---|
39 | |
---|
40 | private: |
---|
41 | std::string _comment; //!< A Comment that is appendet to the Top of this Node |
---|
42 | std::string _name; //!< name of a given Node |
---|
43 | }; |
---|
44 | |
---|
45 | //! a class for Entries in the Parser's File's Sections |
---|
46 | class Entry : public Node |
---|
47 | { |
---|
48 | public: |
---|
49 | Entry(const std::string& name, const std::string& value = "", const std::string& comment = ""); |
---|
50 | const std::string& value() const { return _value; }; |
---|
51 | void setValue (const std::string& value) { _value = value; }; |
---|
52 | |
---|
53 | virtual void debug() const; |
---|
54 | |
---|
55 | public: |
---|
56 | typedef std::list<Entry> list; |
---|
57 | typedef list::iterator iterator; |
---|
58 | typedef list::const_iterator const_iterator; |
---|
59 | |
---|
60 | private: |
---|
61 | std::string _value; //!< value of a given Entry |
---|
62 | }; |
---|
63 | |
---|
64 | //! a clas for Sections in the Parser's file |
---|
65 | class Section : public Node |
---|
66 | { |
---|
67 | public: |
---|
68 | Section(const std::string& sectionName, const std::string& comment = ""); |
---|
69 | |
---|
70 | Entry& addEntry(const std::string& entryName, const std::string& value = "", const std::string& comment = ""); |
---|
71 | bool editEntry(const std::string& entryName, const std::string& value, bool createMissing = true); |
---|
72 | const std::string& getValue(const std::string& entryName, const std::string& defaultValue = "") const; |
---|
73 | |
---|
74 | bool setEntryComment(const std::string& entryName, const std::string& comment); |
---|
75 | const std::string& getEntryComment(const std::string& entryName) const; |
---|
76 | |
---|
77 | const Entry::list& entries() const { return _entries; } |
---|
78 | Entry* getEntry(const std::string& entryName); |
---|
79 | |
---|
80 | Entry::const_iterator getEntryIt(const std::string& entryName) const; |
---|
81 | Entry::iterator begin() { return _entries.begin(); }; |
---|
82 | Entry::const_iterator begin() const { return _entries.begin(); }; |
---|
83 | Entry::iterator end() { return _entries.end(); }; |
---|
84 | Entry::const_iterator end() const { return _entries.end(); }; |
---|
85 | |
---|
86 | void clear(); |
---|
87 | |
---|
88 | virtual void debug() const; |
---|
89 | |
---|
90 | public: |
---|
91 | typedef std::list<Section> list; |
---|
92 | typedef list::iterator iterator; |
---|
93 | typedef list::const_iterator const_iterator; |
---|
94 | |
---|
95 | private: |
---|
96 | Entry::list _entries; //!< a list of entries for this section |
---|
97 | }; |
---|
98 | |
---|
99 | //! A class for a INI-file. |
---|
100 | class Document : public Node |
---|
101 | { |
---|
102 | public: |
---|
103 | Document(const std::string& fileName, const std::string& comment = ""); |
---|
104 | |
---|
105 | Section& addSection(const std::string& sectionName, const std::string& comment = ""); |
---|
106 | bool removeSection(const std::string& sectionName); |
---|
107 | bool setSectionComment(const std::string& sectionName, const std::string& comment); |
---|
108 | |
---|
109 | const Section::list& sections() const { return _sections; } |
---|
110 | Section* getSection(const std::string& sectionName); |
---|
111 | |
---|
112 | Section::const_iterator getSectionIt(const std::string& sectionName) const; |
---|
113 | Section::iterator begin() { return _sections.begin(); }; |
---|
114 | Section::const_iterator begin() const { return _sections.begin(); }; |
---|
115 | Section::iterator end() { return _sections.end(); }; |
---|
116 | Section::const_iterator end() const { return _sections.end(); }; |
---|
117 | |
---|
118 | bool addEntry(const std::string& sectionName, const std::string& entryName, const std::string& value = "", const std::string& comment = ""); |
---|
119 | bool editEntry(const std::string& sectionName, const std::string& entryName, const std::string& value, bool createMissing = true); |
---|
120 | const std::string& getValue(const std::string& sectionName, const std::string& entryName, const std::string& defaultValue = "") const; |
---|
121 | |
---|
122 | bool setEntryComment(const std::string& sectionName, const std::string& entryName, const std::string& comment); |
---|
123 | const std::string& getEntryComment(const std::string& sectionName, const std::string& entryName) const; |
---|
124 | |
---|
125 | void clear(); |
---|
126 | |
---|
127 | virtual void debug() const; |
---|
128 | |
---|
129 | private: |
---|
130 | Section::list _sections; //!< a list of all stored Sections of the Parser. |
---|
131 | }; |
---|
132 | |
---|
133 | public: |
---|
134 | IniParser (const std::string& filename = ""); |
---|
135 | virtual ~IniParser (); |
---|
136 | |
---|
137 | /** @returns true if the file is opened, false otherwise */ |
---|
138 | bool isOpen() const { return !this->_document.sections().empty(); }; |
---|
139 | /** @returns the fileName we have opened. */ |
---|
140 | const std::string& getFileName() const { return this->_document.name(); }; |
---|
141 | |
---|
142 | /// Read and Write the File |
---|
143 | bool readFile(const std::string& fileName, bool keepSettings = false); |
---|
144 | bool writeFile(const std::string& fileName) const; |
---|
145 | |
---|
146 | void setFileComment(const std::string& fileComment); |
---|
147 | const std::string& getFileComment() const { return this->_document.comment(); }; |
---|
148 | |
---|
149 | /// Woring with Sections. |
---|
150 | Section& addSection(const std::string& sectionName); |
---|
151 | // iterate through sections with these Functions |
---|
152 | Section* getSection(const std::string& sectionName) { return this->_document.getSection(sectionName); }; |
---|
153 | Section::const_iterator getSectionIt(const std::string& sectionName) const; |
---|
154 | |
---|
155 | Section::iterator begin() { return this->_document.begin(); }; |
---|
156 | Section::const_iterator begin() const { return this->_document.begin(); }; |
---|
157 | Section::iterator end() { return this->_document.end(); }; |
---|
158 | Section::const_iterator end() const { return this->_document.end(); }; |
---|
159 | |
---|
160 | void setSectionComment(const std::string& sectionName, const std::string& comment); |
---|
161 | const std::string& getSectionsComment(const std::string& sectionNane) const; |
---|
162 | |
---|
163 | /// Working on Entries. (globally) |
---|
164 | bool addEntry(const std::string& sectionName, const std::string& entryName, const std::string& value, const std::string& comment); |
---|
165 | const std::string& getValue(const std::string& sectionNmae, const std::string& entryName, const std::string& defaultValue = "") const; |
---|
166 | bool editEntry(const std::string& sectionName, const std::string& entryName, const std::string& value, bool createMissing = true); |
---|
167 | |
---|
168 | void setEntryComment(const std::string& sectionName, const std::string& entryName, const std::string& comment); |
---|
169 | const std::string& getEntryComment(const std::string& sectionName, const std::string& entryName) const; |
---|
170 | |
---|
171 | // maintenance. |
---|
172 | void debug() const; |
---|
173 | |
---|
174 | private: |
---|
175 | void setNodeComment(Node* node, std::list<std::string>* comments); |
---|
176 | private: |
---|
177 | std::string _fileName; |
---|
178 | Document _document; |
---|
179 | |
---|
180 | static const std::string _emptyString; //!< Just an Empty String that will be returned if nothing else is found. |
---|
181 | }; |
---|
182 | |
---|
183 | #endif /* _INI_PARSER_H */ |
---|