* apt-pkg/depcache.cc:

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

diff --git a/apt-pkg/contrib/configuration.h b/apt-pkg/contrib/configuration.h
index 7476346ef37d1fb4c5098e83e19edd1b6b64ab00..cbe18e4e56e6e7fa24f03f286c3582ee538405b3 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 1.1 1998/07/07 04:17:10 jgg Exp $
+// $Id: configuration.h,v 1.16 2002/11/11 06:55:50 doogie Exp $
 /* ######################################################################
 
    Configuration Class
@@ -14,48 +14,123 @@
    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_TAGFILE_H
-#define PKGLIB_TAGFILE_H
+#ifndef PKGLIB_CONFIGURATION_H
+#define PKGLIB_CONFIGURATION_H
 
-#ifdef __GNUG__
-#pragma interface "pkglib/configuration.h"
-#endif 
+#include <regex.h>
 
 #include <string>
+#include <vector>
+#include <iostream>
+
+using std::string;
 
 class Configuration
 {
+   public:
+   
    struct Item
    {
       string Value;
       string Tag;
+      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 const &Len,bool const &Create);
+   Item *Lookup(const char *Name,const bool &Create);
+   inline const Item *Lookup(const char *Name) const
+   {
+      return ((Configuration *)this)->Lookup(Name,false);
+   }  
    
-   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);
-   int FindI(const char *Name,int Default = 0);
+   string Find(const char *Name,const char *Default = 0) const;
+   string Find(string const &Name,const char *Default = 0) const {return Find(Name.c_str(),Default);};
+   string Find(string const &Name, string const &Default) const {return Find(Name.c_str(),Default.c_str());};
+   string FindFile(const char *Name,const char *Default = 0) const;
+   string FindDir(const char *Name,const char *Default = 0) const;
+   std::vector<string> FindVector(string const &Name) const;
+   std::vector<string> FindVector(const char *Name) const;
+   int FindI(const char *Name,int const &Default = 0) const;
+   int FindI(string const &Name,int const &Default = 0) const {return FindI(Name.c_str(),Default);};
+   bool FindB(const char *Name,bool const &Default = false) const;
+   bool FindB(string const &Name,bool const &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,const 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,const int &Value);
    
-   void Set(const char *Name,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(string const &List, string const &Value);
+   void Clear(string const &List, int const &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();
+
+   /** \brief match a string against a configurable list of patterns */
+   class MatchAgainstConfig
+   {
+     std::vector<regex_t *> patterns;
+
+   public:
+     MatchAgainstConfig(char const * Config);
+     virtual ~MatchAgainstConfig();
+
+     /** \brief Returns \b true for a string matching one of the patterns */
+     bool Match(char const * str) const;
+     bool Match(std::string const &str) const { return Match(str.c_str()); };
+
+     /** \brief returns if the matcher setup was successful */
+     bool wasConstructedSuccessfully() const { return patterns.empty() == false; }
+   };
 };
 
 extern Configuration *_config;
 
+bool ReadConfigFile(Configuration &Conf,const string &FName,
+                   bool const &AsSectional = false,
+                   unsigned const &Depth = 0);
+
+bool ReadConfigDir(Configuration &Conf,const string &Dir,
+                  bool const &AsSectional = false,
+                  unsigned const &Depth = 0);
+
 #endif