apt-pkg/srcrecords.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: srcrecords.h,v 1.5 1999/10/18 03:44:39 jgg Exp $
   4 /* ######################################################################
   5
   6    Source Package Records - Allows access to source package records
   7
   8    Parses and allows access to the list of source records and searching by
   9    source name on that list.
  10
  11    ##################################################################### */
  12                                                                         /*}}}*/
  13 #ifndef PKGLIB_SRCRECORDS_H
  14 #define PKGLIB_SRCRECORDS_H
  15
  16 #ifdef __GNUG__
  17 #pragma interface "apt-pkg/srcrecords.h"
  18 #endif
  19
  20 #include <apt-pkg/fileutl.h>
  21 #include <apt-pkg/sourcelist.h>
  22
  23 class pkgSrcRecords
  24 {
  25    public:
  26
  27    // Describes a single file
  28    struct File
  29    {
  30       string MD5Hash;
  31       unsigned long Size;
  32       string Path;
  33    };
  34
  35    // Abstract parser for each source record
  36    class Parser
  37    {
  38       FileFd *File;
  39       pkgSourceList::const_iterator SrcItem;
  40
  41       public:
  42
  43       inline pkgSourceList::const_iterator Source() const {return SrcItem;};
  44
  45       virtual bool Restart() = 0;
  46       virtual bool Step() = 0;
  47       virtual bool Jump(unsigned long Off) = 0;
  48       virtual unsigned long Offset() = 0;
  49       virtual string AsStr() = 0;
  50
  51       virtual string Package() = 0;
  52       virtual string Version() = 0;
  53       virtual string Maintainer() = 0;
  54       virtual string Section() = 0;
  55       virtual const char **Binaries() = 0;
  56       virtual bool Files(vector<pkgSrcRecords::File> &F) = 0;
  57
  58       Parser(FileFd *File,pkgSourceList::const_iterator SrcItem) : File(File),
  59              SrcItem(SrcItem) {};
  60       virtual ~Parser() {delete File;};
  61    };
  62
  63    private:
  64
  65    // The list of files and the current parser pointer
  66    Parser **Files;
  67    Parser **Current;
  68
  69    public:
  70
  71    // Reset the search
  72    bool Restart();
  73
  74    // Locate a package by name
  75    Parser *Find(const char *Package,bool SrcOnly = false);
  76
  77    pkgSrcRecords(pkgSourceList &List);
  78    ~pkgSrcRecords();
  79 };
  80
  81
  82 #endif