src/optionsfile.h

   1 #ifndef OPTIONSFILE_H
   2 #define OPTIONSFILE_H
   3
   4 #include <fstream>
   5 #include <cstring>
   6 using namespace std;
   7
   8 typedef unsigned long long int UIntT;
   9 typedef signed long long int SIntT;
  10 typedef long double FloatT;
  11 typedef const char *StringT;
  12
  13 class OptionsFile : private fstream {
  14         OptionsFile(const OptionsFile &);
  15         OptionsFile &operator=(const OptionsFile &);
  16
  17 public:
  18         OptionsFile(const char *file, bool load = true, bool saveOnDel = false);
  19         ~OptionsFile();
  20
  21         void Load();
  22         void Save();
  23         inline bool IsSaved() const;
  24
  25         void Clear();
  26         bool IsClear() const;
  27
  28         void SetUInt(const char *sect, const char *key, UIntT val);
  29         void SetUIntHex(const char *sect, const char *key, UIntT val);
  30         void SetSInt(const char *sect, const char *key, SIntT val);
  31         void SetFloat(const char *sect, const char *key, FloatT val);
  32         void SetString(const char *sect, const char *key, StringT ptr);
  33
  34         UIntT GetUInt(const char *sect, const char *key) const;
  35         SIntT GetSInt(const char *sect, const char *key) const;
  36         FloatT GetFloat(const char *sect, const char *key) const;
  37         StringT GetString(const char *sect, const char *key) const;
  38
  39         void Unset(const char *sect, const char *key);
  40         bool Has(const char *sect, const char *key) const { return (GetString(sect, key) != NULL); }
  41
  42 private:
  43         class StrList {
  44                 StrList(const StrList &);
  45                 StrList &operator=(const StrList &);
  46
  47         public:
  48                 StrList();
  49                 ~StrList();
  50
  51                 void Clear();
  52                 bool IsClear() const;
  53
  54                 void Set(const char *key, const char *val);
  55                 char *Get(const char *key) const;
  56                 void Unset(const char *key);
  57
  58                 void StartPoll();
  59                 int PollNext(char **, char **);
  60
  61         private:
  62                 struct Node {
  63                         char *keyword;
  64                         char *value;
  65                         Node *next;
  66                 } *head, *cur;
  67         } opts;
  68         char *fileName;
  69         bool autoSave, isSaved;
  70
  71         void Set(const char *sect, const char *key, const char *val);
  72         char *Get(const char *sect, const char *key) const;
  73         char *CreateKeyword(const char *sect, const char *key) const;
  74         void SeparateKeyword(const char *keyword, char **sect, char **key) const;
  75         int NextSignificant();
  76         void AddChar(char *, char, size_t);
  77         void ParseString(char *, size_t);
  78 };
  79
  80 bool OptionsFile::IsSaved() const {
  81         return isSaved;
  82 }
  83
  84 #endif // OPTIONSFILE_H