apt-pkg/deb/deblistparser.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: deblistparser.h,v 1.8 1999/07/26 17:46:08 jgg Exp $
   4 /* ######################################################################
   5
   6    Debian Package List Parser - This implements the abstract parser
   7    interface for Debian package files
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 // Header section: pkglib
  12 #ifndef PKGLIB_DEBLISTPARSER_H
  13 #define PKGLIB_DEBLISTPARSER_H
  14
  15 #include <apt-pkg/pkgcachegen.h>
  16 #include <apt-pkg/tagfile.h>
  17
  18 class debListParser : public pkgCacheGenerator::ListParser
  19 {
  20    pkgTagFile Tags;
  21    pkgTagSection Section;
  22    unsigned long iOffset;
  23    string Arch;
  24
  25    // Parser Helper
  26    struct WordList
  27    {
  28       char *Str;
  29       unsigned char Val;
  30    };
  31
  32    unsigned long UniqFindTagWrite(const char *Tag);
  33    bool ParseStatus(pkgCache::PkgIterator Pkg,pkgCache::VerIterator Ver);
  34    const char *ParseDepends(const char *Start,const char *Stop,
  35                             string &Package,string &Ver,unsigned int &Op);
  36    bool ParseDepends(pkgCache::VerIterator Ver,const char *Tag,
  37                      unsigned int Type);
  38    bool ParseProvides(pkgCache::VerIterator Ver);
  39    bool GrabWord(string Word,WordList *List,int Count,unsigned char &Out);
  40
  41    public:
  42
  43    // These all operate against the current section
  44    virtual string Package();
  45    virtual string Version();
  46    virtual bool NewVersion(pkgCache::VerIterator Ver);
  47    virtual unsigned short VersionHash();
  48    virtual bool UsePackage(pkgCache::PkgIterator Pkg,
  49                            pkgCache::VerIterator Ver);
  50    virtual unsigned long Offset() {return iOffset;};
  51    virtual unsigned long Size() {return Section.size();};
  52
  53    virtual bool Step();
  54
  55    bool LoadReleaseInfo(pkgCache::PkgFileIterator FileI,FileFd &File);
  56
  57    debListParser(FileFd &File);
  58 };
  59
  60 #endif