apt-pkg/deb/deblistparser.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: deblistparser.h,v 1.9 2001/02/20 07:03:17 jgg Exp $
   4 /* ######################################################################
   5
   6    Debian Package List Parser - This implements the abstract parser
   7    interface for Debian package files
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 #ifndef PKGLIB_DEBLISTPARSER_H
  12 #define PKGLIB_DEBLISTPARSER_H
  13
  14 #include <apt-pkg/pkgcachegen.h>
  15 #include <apt-pkg/indexfile.h>
  16 #include <apt-pkg/tagfile.h>
  17
  18 class debListParser : public pkgCacheGenerator::ListParser
  19 {
  20    public:
  21
  22    // Parser Helper
  23    struct WordList
  24    {
  25       const char *Str;
  26       unsigned char Val;
  27    };
  28
  29    private:
  30    /** \brief dpointer placeholder (for later in case we need it) */
  31    void *d;
  32
  33    protected:
  34    pkgTagFile Tags;
  35    pkgTagSection Section;
  36    unsigned long iOffset;
  37    std::string Arch;
  38    std::vector<std::string> Architectures;
  39    bool MultiArchEnabled;
  40
  41    unsigned long UniqFindTagWrite(const char *Tag);
  42    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  43    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
  44                      unsigned int Type);
  45    bool ParseProvides(pkgCache::VerIterator &Ver);
  46    bool NewProvidesAllArch(pkgCache::VerIterator &Ver, std::string const &Package, std::string const &Version);
  47    static bool GrabWord(std::string Word,WordList *List,unsigned char &Out);
  48
  49    public:
  50
  51    static unsigned char GetPrio(std::string Str);
  52
  53    // These all operate against the current section
  54    virtual std::string Package();
  55    virtual std::string Architecture();
  56    virtual bool ArchitectureAll();
  57    virtual std::string Version();
  58    virtual bool NewVersion(pkgCache::VerIterator &Ver);
  59    virtual std::string Description();
  60    virtual std::string DescriptionLanguage();
  61    virtual MD5SumValue Description_md5();
  62    virtual unsigned short VersionHash();
  63    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  64                            pkgCache::VerIterator &Ver);
  65    virtual unsigned long Offset() {return iOffset;};
  66    virtual unsigned long Size() {return Section.size();};
  67
  68    virtual bool Step();
  69
  70    bool LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,FileFd &File,
  71                         std::string section);
  72
  73    static const char *ParseDepends(const char *Start,const char *Stop,
  74                             std::string &Package,std::string &Ver,unsigned int &Op,
  75                             bool const &ParseArchFlags = false,
  76                             bool const &StripMultiArch = true);
  77    static const char *ConvertRelation(const char *I,unsigned int &Op);
  78
  79    debListParser(FileFd *File, std::string const &Arch = "");
  80    virtual ~debListParser() {};
  81 };
  82
  83 #endif