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
  49    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  50    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
  51                      unsigned int Type);
  52    bool ParseProvides(pkgCache::VerIterator &Ver);
  53    static bool GrabWord(std::string Word,const WordList *List,unsigned char &Out);
  54    APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
  55
  56    public:
  57
  58    APT_PUBLIC static unsigned char GetPrio(std::string Str);
  59
  60    // These all operate against the current section
  61    virtual std::string Package() APT_OVERRIDE;
  62    virtual std::string Architecture() APT_OVERRIDE;
  63    virtual bool ArchitectureAll() APT_OVERRIDE;
  64    virtual std::string Version() APT_OVERRIDE;
  65    virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
  66    virtual std::string Description(std::string const &lang) APT_OVERRIDE;
  67    virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
  68    virtual MD5SumValue Description_md5() APT_OVERRIDE;
  69    virtual unsigned short VersionHash() APT_OVERRIDE;
  70    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver) APT_OVERRIDE;
  71    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  72                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
  73    virtual map_filesize_t Offset() APT_OVERRIDE {return iOffset;};
  74    virtual map_filesize_t Size() APT_OVERRIDE {return Section.size();};
  75
  76    virtual bool Step() APT_OVERRIDE;
  77
  78    bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
  79                         std::string const &section);
  80
  81    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  82          std::string &Package,std::string &Ver,unsigned int &Op);
  83    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  84          std::string &Package,std::string &Ver,unsigned int &Op,
  85          bool const &ParseArchFlags);
  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, bool const &StripMultiArch);
  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          bool const &ParseRestrictionsList);
  93
  94    APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
  95
  96    debListParser(FileFd *File);
  97    virtual ~debListParser();
  98 };
  99
 100 class APT_HIDDEN debDebFileParser : public debListParser
 101 {
 102  private:
 103    std::string DebFile;
 104
 105  public:
 106    debDebFileParser(FileFd *File, std::string const &DebFile);
 107    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
 108                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
 109 };
 110
 111 class APT_HIDDEN debTranslationsParser : public debListParser
 112 {
 113  public:
 114    // a translation can never be a real package
 115    virtual std::string Architecture() APT_OVERRIDE { return ""; }
 116    virtual std::string Version() APT_OVERRIDE { return ""; }
 117
 118    debTranslationsParser(FileFd *File)
 119       : debListParser(File) {};
 120 };
 121
 122 class APT_HIDDEN debStatusListParser : public debListParser
 123 {
 124  public:
 125    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
 126    debStatusListParser(FileFd *File)
 127       : debListParser(File) {};
 128 };
 129 #endif