* merged with main

[apt.git] / apt-pkg / contrib / configuration.h

diff --git a/apt-pkg/contrib/configuration.h b/apt-pkg/contrib/configuration.h
index cf5a90f5741c6f5c5056ded56b619263687ec0fd..789bc82cfb6c70ad43270dade76ab647afdada84 100644 (file)
--- a/apt-pkg/contrib/configuration.h
+++ b/apt-pkg/contrib/configuration.h
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: configuration.h,v 1.7 1998/10/30 07:53:44 jgg Exp $
+// $Id: configuration.h,v 1.16 2002/11/11 06:55:50 doogie Exp $
 /* ######################################################################
 
    Configuration Class
@@ -14,13 +14,17 @@
    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
 
@@ -29,9 +33,14 @@
 #endif 
 
 #include <string>
+#include <iostream>
+
+using std::string;
 
 class Configuration
 {
+   public:
+   
    struct Item
    {
       string Value;
@@ -40,39 +49,67 @@ class Configuration
       Item *Child;
       Item *Next;
       
-      string FullTag() const;
+      string FullTag(const Item *Stop = 0) const;
       
-      Item() : Child(0), Next(0) {};
+      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 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);
-   bool FindB(const char *Name,bool Default = false);
+   string Find(const char *Name,const char *Default = 0) const;
+   string Find(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(string Name,int Default = 0) const {return FindI(Name.c_str(),Default);};
+   bool FindB(const char *Name,bool Default = false) const;
+   bool FindB(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(string Name,string Value) {Set(Name.c_str(),Value);};
+   void CndSet(const char *Name,string 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);};
+   inline bool Exists(string Name) const {return Exists(Name.c_str());};
+   bool Exists(const char *Name) const;
+   bool ExistsAny(const char *Name) const;
 
-   void Dump();
-   
+   // clear a whole tree
+   void Clear(string Name);
+
+   // remove a certain value from a list (e.g. the list of "APT::Keep-Fds")
+   void Clear(string List, string Value);
+   void Clear(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,string File);
+bool ReadConfigFile(Configuration &Conf,string FName,bool AsSectional = false,
+                   unsigned Depth = 0);
+
+bool ReadConfigDir(Configuration &Conf,string Dir,bool AsSectional = false,
+                   unsigned Depth = 0);
 
 #endif