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source: orxonox.OLD/trunk/src/lib/parser/ini_parser/ini_parser.h @ 7001

Last change on this file since 7001 was 6981, checked in by bensch, 19 years ago

trunk: some virtuals

File size: 4.0 KB
Line 
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#ifndef NULL
13 #define NULL 0x0                     //!< NULL
14#endif
15
16#include <list>
17
18//! ini-file parser
19/**
20 * This class can be used to load an initializer file and parse it's contents for variablename=value pairs.
21 */
22class IniParser
23{
24  private:
25    ////////////////////////////////////
26    //! a struct for Entries in the Parser's File's Sections
27    struct IniEntry
28    {
29      char*               comment;  //!< A Comment that is appendet to the Top of this Entry.
30      char*               name;     //!< name of a given Entry
31      char*               value;    //!< value of a given Entry
32    };
33
34    //! a struct for Sections in the Parser's file
35    struct IniSection
36    {
37      char*               comment;  //!< A Comment that is appendet to the Top of this Section.
38      char*               name;     //!< name of a given section
39      std::list<IniEntry> entries;  //!< a list of entries for this section
40    };
41    ////////////////////////////////////
42
43  public:
44    IniParser (const char* filename = NULL);
45    virtual ~IniParser ();
46
47    /** @returns true if the file is opened, false otherwise*/
48    bool isOpen() const { return (this->fileName != NULL)? true : false; };
49    /** @returns the fileName we have opened. */
50    const char* getFileName() const { return this->fileName; };
51
52    bool readFile(const char* fileName);
53    bool writeFile(const char* fileName) const;
54
55    void setFileComment(const char* fileComment);
56    const char* getFileComment() const { return this->comment; };
57
58    bool addSection(const char* sectionName);
59    bool getSection(const char* sectionName);
60    void setSectionComment(const char* comment, const char* sectionName);
61    const char* getSectionComment(const char* sectionNane) const;
62
63    // iterate through sections with these Functions
64    void firstSection();
65    const char* nextSection();
66
67
68    bool addVar(const char* entryName, const char* value, const char* sectionName = NULL);
69    const char* getVar(const char* entryName, const char* sectionName, const char* defaultValue = "") const;
70    void setEntryComment(const char* comment, const char* entryName, const char* sectionName);
71    const char* getEntryComment(const char* entryName, const char* sectionName) const;
72
73    // iterate Through Variables with these Functions.
74    void firstVar();
75    bool nextVar();
76
77
78    // retrieving functions when iterating.
79    const char* getCurrentSection() const;
80    const char* getCurrentName() const;
81    const char* getCurrentValue() const;
82
83
84    // maintenance.
85    void debug() const;
86
87
88  private:
89    void deleteSections();
90    void setFileName(const char* fileName);
91
92    void setFileComment();
93    void setSectionComment();
94    void setEntryComment();
95
96    std::list<IniSection>::const_iterator getSectionIT(const char* sectionName) const;
97    std::list<IniSection>::iterator getSectionIT(const char* sectionName);
98
99    std::list<IniEntry>::const_iterator getEntryIT(const char* entryName, const char* sectionName = NULL) const;
100    std::list<IniEntry>::iterator getEntryIT(const char* entryName, const char* sectionName = NULL);
101
102  private:
103    char*                            fileName;        //!< The name of the File that was parsed.
104    char*                            comment;         //!< A Comment for the header of this File.
105    std::list<IniSection>            sections;        //!< a list of all stored Sections of the Parser
106    std::list<IniSection>::iterator  currentSection;  //!< the current selected Section
107    std::list<IniEntry>::iterator    currentEntry;    //!< the current selected entry (in currentSection)
108
109    std::list<char*>                 commentList;     //!< A list of Comments. (this is for temporary saving of Comments, that are inserted in front of Sections/Entries.)
110};
111
112#endif /* _INI_PARSER_H */
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