apt-pkg/srcrecords.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: srcrecords.h,v 1.3 1999/04/07 05:30:18 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
  50       virtual string Package() = 0;
  51       virtual string Version() = 0;
  52       virtual string Maintainer() = 0;
  53       virtual string Section() = 0;
  54       virtual const char **Binaries() = 0;
  55       virtual bool Files(vector<File> &F) = 0;
  56
  57       Parser(FileFd *File,pkgSourceList::const_iterator SrcItem) : File(File),
  58              SrcItem(SrcItem) {};
  59       virtual ~Parser() {delete File;};
  60    };
  61
  62    private:
  63
  64    // The list of files and the current parser pointer
  65    Parser **Files;
  66    Parser **Current;
  67
  68    public:
  69
  70    // Reset the search
  71    bool Restart();
  72
  73    // Locate a package by name
  74    Parser *Find(const char *Package,bool SrcOnly = false);
  75
  76    pkgSrcRecords(pkgSourceList &List);
  77    ~pkgSrcRecords();
  78 };
  79
  80
  81 #endif