// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: configuration.h,v 1.3 1998/07/12 23:58:45 jgg Exp $
+// $Id: configuration.h,v 1.16 2002/11/11 06:55:50 doogie Exp $
/* ######################################################################
Configuration Class
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".
##################################################################### */
/*}}}*/
-// Header section: pkglib
#ifndef PKGLIB_CONFIGURATION_H
#define PKGLIB_CONFIGURATION_H
#endif
#include <string>
+#include <iostream>
+
+using std::string;
class Configuration
{
+ public:
+
struct Item
{
string Value;
Item *Parent;
Item *Child;
Item *Next;
- Item() : Child(0), Next(0) {};
+
+ string FullTag(const Item *Stop = 0) const;
+
+ Item() : Parent(0), Child(0), Next(0) {};
};
+
+ private:
+
Item *Root;
+ bool ToFree;
Item *Lookup(Item *Head,const char *S,unsigned long Len,bool Create);
- Item *Lookup(const char *Name,bool Create);
-
+ Item *Lookup(const char *Name,bool Create);
+ inline const Item *Lookup(const char *Name) const
+ {
+ return ((Configuration *)this)->Lookup(Name,false);
+ }
+
public:
- string Find(const char *Name,const char *Default = 0);
- string FindDir(const char *Name,const char *Default = 0);
- int FindI(const char *Name,int Default = 0);
-
- void Set(const char *Name,string Value);
- void Set(const char *Name,int Value);
+ string Find(const char *Name,const char *Default = 0) const;
+ string Find(const string Name,const char *Default = 0) const {return Find(Name.c_str(),Default);};
+ string FindFile(const char *Name,const char *Default = 0) const;
+ string FindDir(const char *Name,const char *Default = 0) const;
+ int FindI(const char *Name,int Default = 0) const;
+ int FindI(const string Name,int Default = 0) const {return FindI(Name.c_str(),Default);};
+ bool FindB(const char *Name,bool Default = false) const;
+ bool FindB(const string Name,bool Default = false) const {return FindB(Name.c_str(),Default);};
+ string FindAny(const char *Name,const char *Default = 0) const;
+
+ inline void Set(const string Name,string Value) {Set(Name.c_str(),Value);};
+ void CndSet(const char *Name,const string &Value);
+ void Set(const char *Name,const string &Value);
+ void Set(const char *Name,int Value);
+ inline bool Exists(const string Name) const {return Exists(Name.c_str());};
+ bool Exists(const char *Name) const;
+ bool ExistsAny(const char *Name) const;
+
+ // clear a whole tree
+ void Clear(const string Name);
+
+ // remove a certain value from a list (e.g. the list of "APT::Keep-Fds")
+ void Clear(const string List, string Value);
+ void Clear(const string List, int Value);
+
+ inline const Item *Tree(const char *Name) const {return Lookup(Name);};
+
+ inline void Dump() { Dump(std::clog); };
+ void Dump(std::ostream& str);
+
+ Configuration(const Item *Root);
Configuration();
+ ~Configuration();
};
extern Configuration *_config;
+bool ReadConfigFile(Configuration &Conf,const string &FName,
+ bool AsSectional = false,
+ unsigned Depth = 0);
+
+bool ReadConfigDir(Configuration &Conf,const string &Dir,
+ bool AsSectional = false,
+ unsigned Depth = 0);
+
#endif