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diff --git a/apt-pkg/sourcelist.h b/apt-pkg/sourcelist.h
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+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   SourceList - Manage a list of sources
+   
+   The Source List class provides access to a list of sources. It 
+   can read them from a file and generate a list of all the distinct
+   sources.
+   
+   All sources have a type associated with them that defines the layout
+   of the archive. The exact format of the file is documented in
+   files.sgml.
+
+   The types are mapped through a list of type definitions which handle
+   the actual construction of the back end type. After loading a source 
+   list all you have is a list of package index files that have the ability
+   to be Acquired.
+   
+   ##################################################################### */
+									/*}}}*/
+#ifndef PKGLIB_SOURCELIST_H
+#define PKGLIB_SOURCELIST_H
+
+#include <apt-pkg/macros.h>
+#include <apt-pkg/pkgcache.h>
+
+#include <ctime>
+
+#include <map>
+#include <string>
+#include <vector>
+
+
+class FileFd;
+class pkgTagSection;
+class pkgAcquire;
+class pkgIndexFile;
+class metaIndex;
+class CommandLine;
+
+class APT_PUBLIC pkgSourceList
+{
+   void * const d;
+   std::vector<pkgIndexFile*> VolatileFiles;
+   public:
+
+   // List of supported source list types
+   class Type
+   {
+      public:
+
+      // Global list of Items supported
+      static Type **GlobalList;
+      static unsigned long GlobalListLen;
+      static Type *GetType(const char *Type) APT_PURE;
+
+      char const * const Name;
+      char const * const Label;
+
+      bool FixupURI(std::string &URI) const;
+      virtual bool ParseStanza(std::vector<metaIndex *> &List,
+                               pkgTagSection &Tags,
+                               unsigned int const stanza_n,
+                               FileFd &Fd);
+      virtual bool ParseLine(std::vector<metaIndex *> &List,
+			     const char *Buffer,
+			     unsigned int const CurLine,std::string const &File) const;
+      virtual bool CreateItem(std::vector<metaIndex *> &List,std::string const &URI,
+			      std::string const &Dist,std::string const &Section,
+			      std::map<std::string, std::string> const &Options) const = 0;
+      Type(char const * const Name, char const * const Label);
+      virtual ~Type();
+   };
+
+   typedef std::vector<metaIndex *>::const_iterator const_iterator;
+
+   protected:
+
+   std::vector<metaIndex *> SrcList;
+
+   private:
+   APT_HIDDEN bool ParseFileDeb822(std::string const &File);
+   APT_HIDDEN bool ParseFileOldStyle(std::string const &File);
+
+   public:
+
+   bool ReadMainList();
+   bool Read(std::string const &File);
+
+   // CNC:2003-03-03
+   void Reset();
+   bool ReadAppend(std::string const &File);
+   bool ReadSourceDir(std::string const &Dir);
+   
+   // List accessors
+   inline const_iterator begin() const {return SrcList.begin();};
+   inline const_iterator end() const {return SrcList.end();};
+   inline unsigned int size() const {return SrcList.size();};
+   inline bool empty() const {return SrcList.empty();};
+
+   bool FindIndex(pkgCache::PkgFileIterator File,
+		  pkgIndexFile *&Found) const;
+   bool GetIndexes(pkgAcquire *Owner, bool GetAll=false) const;
+   
+   // query last-modified time
+   time_t GetLastModifiedTime();
+
+   /** \brief add file for parsing, but not to the cache
+    *
+    *  pkgIndexFiles originating from pkgSourcesList are included in
+    *  srcpkgcache, the status files added via #AddStatusFiles are
+    *  included in pkgcache, but these files here are not included in
+    *  any cache to have the possibility of having a file included just
+    *  for a single run like a local .deb/.dsc file.
+    *
+    *  The volatile files do not count as "normal" sourceslist entries,
+    *  can't be iterated over with #begin and #end and can't be
+    *  downloaded, but they can be found via #FindIndex.
+    *
+    *  @param File is an index file; pointer-ownership is transferred
+    */
+   void AddVolatileFile(pkgIndexFile * const File);
+   bool AddVolatileFile(std::string const &File);
+   bool AddVolatileFile(std::string const &File, std::vector<std::string> * const VolatileCmdL);
+   void AddVolatileFiles(CommandLine &CmdL, std::vector<std::string> * const VolatileCmdL);
+
+   /** @return list of files registered with #AddVolatileFile */
+   std::vector<pkgIndexFile*> GetVolatileFiles() const;
+
+   pkgSourceList();
+   virtual ~pkgSourceList();
+};
+
+#endif