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- // -*- mode: cpp; mode: fold -*-
- // Description /*{{{*/
- // $Id: configuration.h,v 1.11 1999/04/03 00:34:33 jgg Exp $
- /* ######################################################################
-
- Configuration Class
-
- This class provides a configuration file and command line parser
- for a tree-oriented configuration environment. All runtime configuration
- is stored in here.
-
- Each configuration name is given as a fully scoped string such as
- Foo::Bar
- And has associated with it a text string. The Configuration class only
- provides storage and lookup for this tree, other classes provide
- configuration file formats (and parsers/emitters if needed).
-
- Most things can get by quite happily with,
- cout << _config->Find("Foo::Bar") << endl;
-
- A special extension, support for ordered lists is provided by using the
- special syntax, "block::list::" the trailing :: designates the
- item as a list. To access the list you must use the tree function on
- "block::list".
-
- ##################################################################### */
- /*}}}*/
- #ifndef PKGLIB_CONFIGURATION_H
- #define PKGLIB_CONFIGURATION_H
-
- #ifdef __GNUG__
- #pragma interface "apt-pkg/configuration.h"
- #endif
-
- #include <string>
-
- class Configuration
- {
- struct Item
- {
- string Value;
- string Tag;
- Item *Parent;
- Item *Child;
- Item *Next;
-
- string FullTag() const;
-
- Item() : Parent(0), Child(0), Next(0) {};
- };
- Item *Root;
-
- Item *Lookup(Item *Head,const char *S,unsigned long Len,bool Create);
- Item *Lookup(const char *Name,bool Create);
-
- public:
-
- string Find(const char *Name,const char *Default = 0);
- string Find(string Name,const char *Default = 0) {return Find(Name.c_str(),Default);};
- string FindFile(const char *Name,const char *Default = 0);
- string FindDir(const char *Name,const char *Default = 0);
- int FindI(const char *Name,int Default = 0);
- int FindI(string Name,bool Default = 0) {return FindI(Name.c_str(),Default);};
- bool FindB(const char *Name,bool Default = false);
- bool FindB(string Name,bool Default = false) {return FindB(Name.c_str(),Default);};
-
- inline void Set(string Name,string Value) {Set(Name.c_str(),Value);};
- void Set(const char *Name,string Value);
- void Set(const char *Name,int Value);
-
- inline bool Exists(string Name) {return Exists(Name.c_str());};
- bool Exists(const char *Name);
-
- inline const Item *Tree(const char *Name) {return Lookup(Name,false);};
-
- void Dump();
-
- Configuration();
- };
-
- extern Configuration *_config;
-
- bool ReadConfigFile(Configuration &Conf,string File);
-
- #endif
-