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 #ifndef APT_8_CLEANER_HEADERS
  18 #include <apt-pkg/indexfile.h>
  19 #endif
  20
  21 class debListParser : public pkgCacheGenerator::ListParser
  22 {
  23    public:
  24
  25    // Parser Helper
  26    struct WordList
  27    {
  28       const char *Str;
  29       unsigned char Val;
  30    };
  31
  32    private:
  33    /** \brief dpointer placeholder (for later in case we need it) */
  34    void *d;
  35
  36    protected:
  37    pkgTagFile Tags;
  38    pkgTagSection Section;
  39    unsigned long iOffset;
  40    std::string Arch;
  41    std::vector<std::string> Architectures;
  42    bool MultiArchEnabled;
  43
  44    unsigned long UniqFindTagWrite(const char *Tag);
  45    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  46    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
  47                      unsigned int Type);
  48    bool ParseProvides(pkgCache::VerIterator &Ver);
  49    bool NewProvidesAllArch(pkgCache::VerIterator &Ver, std::string const &Package, std::string const &Version);
  50    static bool GrabWord(std::string Word,WordList *List,unsigned char &Out);
  51
  52    public:
  53
  54    static unsigned char GetPrio(std::string Str);
  55
  56    // These all operate against the current section
  57    virtual std::string Package();
  58    virtual std::string Architecture();
  59    virtual bool ArchitectureAll();
  60    virtual std::string Version();
  61    virtual bool NewVersion(pkgCache::VerIterator &Ver);
  62    virtual std::string Description();
  63    virtual std::string DescriptionLanguage();
  64    virtual MD5SumValue Description_md5();
  65    virtual unsigned short VersionHash();
  66    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  67                            pkgCache::VerIterator &Ver);
  68    virtual unsigned long Offset() {return iOffset;};
  69    virtual unsigned long Size() {return Section.size();};
  70
  71    virtual bool Step();
  72
  73    bool LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,FileFd &File,
  74                         std::string section);
  75
  76    static const char *ParseDepends(const char *Start,const char *Stop,
  77                             std::string &Package,std::string &Ver,unsigned int &Op,
  78                             bool const &ParseArchFlags = false,
  79                             bool const &StripMultiArch = true);
  80    static const char *ConvertRelation(const char *I,unsigned int &Op);
  81
  82    debListParser(FileFd *File, std::string const &Arch = "");
  83    virtual ~debListParser() {};
  84 };
  85
  86 #endif