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 #include <apt-pkg/md5.h>
  17 #include <apt-pkg/pkgcache.h>
  18 #include <apt-pkg/macros.h>
  19
  20 #include <string>
  21 #include <vector>
  22
  23 #ifndef APT_8_CLEANER_HEADERS
  24 #include <apt-pkg/indexfile.h>
  25 #endif
  26
  27 class FileFd;
  28
  29 class APT_HIDDEN debListParser : public pkgCacheListParser
  30 {
  31    public:
  32
  33    // Parser Helper
  34    struct WordList
  35    {
  36       const char *Str;
  37       unsigned char Val;
  38    };
  39
  40    private:
  41    /** \brief dpointer placeholder (for later in case we need it) */
  42    void * const d;
  43
  44    protected:
  45    pkgTagFile Tags;
  46    pkgTagSection Section;
  47    map_filesize_t iOffset;
  48    std::string Arch;
  49    std::vector<std::string> Architectures;
  50    bool MultiArchEnabled;
  51
  52    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  53    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
  54                      unsigned int Type);
  55    bool ParseProvides(pkgCache::VerIterator &Ver);
  56    static bool GrabWord(std::string Word,WordList *List,unsigned char &Out);
  57    APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
  58
  59    public:
  60
  61    APT_PUBLIC static unsigned char GetPrio(std::string Str);
  62
  63    // These all operate against the current section
  64    virtual std::string Package() APT_OVERRIDE;
  65    virtual std::string Architecture() APT_OVERRIDE;
  66    virtual bool ArchitectureAll() APT_OVERRIDE;
  67    virtual std::string Version() APT_OVERRIDE;
  68    virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
  69    virtual std::string Description(std::string const &lang) APT_OVERRIDE;
  70    virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
  71    virtual MD5SumValue Description_md5() APT_OVERRIDE;
  72    virtual unsigned short VersionHash() APT_OVERRIDE;
  73    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver) APT_OVERRIDE;
  74    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  75                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
  76    virtual map_filesize_t Offset() APT_OVERRIDE {return iOffset;};
  77    virtual map_filesize_t Size() APT_OVERRIDE {return Section.size();};
  78
  79    virtual bool Step() APT_OVERRIDE;
  80
  81    bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
  82                         std::string const &section);
  83
  84    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  85          std::string &Package,std::string &Ver,unsigned int &Op);
  86    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  87          std::string &Package,std::string &Ver,unsigned int &Op,
  88          bool const &ParseArchFlags);
  89    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  90          std::string &Package,std::string &Ver,unsigned int &Op,
  91          bool const &ParseArchFlags, bool const &StripMultiArch);
  92    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  93          std::string &Package,std::string &Ver,unsigned int &Op,
  94          bool const &ParseArchFlags, bool const &StripMultiArch,
  95          bool const &ParseRestrictionsList);
  96
  97    APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
  98
  99    debListParser(FileFd *File, std::string const &Arch = "");
 100    virtual ~debListParser();
 101 };
 102
 103 class APT_HIDDEN debDebFileParser : public debListParser
 104 {
 105  private:
 106    std::string DebFile;
 107
 108  public:
 109    debDebFileParser(FileFd *File, std::string const &DebFile);
 110    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
 111                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
 112 };
 113
 114 class APT_HIDDEN debTranslationsParser : public debListParser
 115 {
 116  public:
 117    // a translation can never be a real package
 118    virtual std::string Architecture() APT_OVERRIDE { return ""; }
 119    virtual std::string Version() APT_OVERRIDE { return ""; }
 120
 121    debTranslationsParser(FileFd *File, std::string const &Arch = "")
 122       : debListParser(File, Arch) {};
 123 };
 124
 125 #endif