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/tagfile.h>
  16
  17 class debListParser : public pkgCacheGenerator::ListParser
  18 {
  19    public:
  20
  21    // Parser Helper
  22    struct WordList
  23    {
  24       const char *Str;
  25       unsigned char Val;
  26    };
  27
  28    private:
  29    /** \brief dpointer placeholder (for later in case we need it) */
  30    void *d;
  31
  32    protected:
  33    pkgTagFile Tags;
  34    pkgTagSection Section;
  35    unsigned long iOffset;
  36    std::string Arch;
  37    std::vector<std::string> Architectures;
  38    bool MultiArchEnabled;
  39
  40    unsigned long UniqFindTagWrite(const char *Tag);
  41    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  42    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
  43                      unsigned int Type);
  44    bool ParseProvides(pkgCache::VerIterator &Ver);
  45    bool NewProvidesAllArch(pkgCache::VerIterator &Ver, std::string const &Package, std::string const &Version);
  46    static bool GrabWord(std::string Word,WordList *List,unsigned char &Out);
  47
  48    public:
  49
  50    static unsigned char GetPrio(std::string Str);
  51
  52    // These all operate against the current section
  53    virtual std::string Package();
  54    virtual std::string Architecture();
  55    virtual bool ArchitectureAll();
  56    virtual std::string Version();
  57    virtual bool NewVersion(pkgCache::VerIterator &Ver);
  58    virtual std::string Description();
  59    virtual std::string DescriptionLanguage();
  60    virtual MD5SumValue Description_md5();
  61    virtual unsigned short VersionHash();
  62    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  63                            pkgCache::VerIterator &Ver);
  64    virtual unsigned long Offset() {return iOffset;};
  65    virtual unsigned long Size() {return Section.size();};
  66
  67    virtual bool Step();
  68
  69    bool LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,FileFd &File,
  70                         std::string section);
  71
  72    static const char *ParseDepends(const char *Start,const char *Stop,
  73                             std::string &Package,std::string &Ver,unsigned int &Op,
  74                             bool const &ParseArchFlags = false,
  75                             bool const &StripMultiArch = true);
  76    static const char *ConvertRelation(const char *I,unsigned int &Op);
  77
  78    debListParser(FileFd *File, std::string const &Arch = "");
  79    virtual ~debListParser() {};
  80 };
  81
  82 #endif