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 debListParser : public pkgCacheGenerator::ListParser
  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 *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    map_stringitem_t UniqFindTagWrite(const char *Tag);
  53    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  54    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
  55                      unsigned int Type);
  56    bool ParseProvides(pkgCache::VerIterator &Ver);
  57    bool NewProvidesAllArch(pkgCache::VerIterator &Ver, std::string const &Package, std::string const &Version);
  58    static bool GrabWord(std::string Word,WordList *List,unsigned char &Out);
  59    APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
  60
  61    public:
  62
  63    static unsigned char GetPrio(std::string Str);
  64
  65    // These all operate against the current section
  66    virtual std::string Package();
  67    virtual std::string Architecture();
  68    virtual bool ArchitectureAll();
  69    virtual std::string Version();
  70    virtual bool NewVersion(pkgCache::VerIterator &Ver);
  71    virtual std::string Description(std::string const &lang);
  72    virtual std::vector<std::string> AvailableDescriptionLanguages();
  73    virtual MD5SumValue Description_md5();
  74    virtual unsigned short VersionHash();
  75 #if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
  76    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver);
  77 #endif
  78    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  79                            pkgCache::VerIterator &Ver);
  80    virtual map_filesize_t Offset() {return iOffset;};
  81    virtual map_filesize_t Size() {return Section.size();};
  82
  83    virtual bool Step();
  84
  85    bool LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,FileFd &File,
  86                         std::string section);
  87
  88    static const char *ParseDepends(const char *Start,const char *Stop,
  89          std::string &Package,std::string &Ver,unsigned int &Op);
  90    static const char *ParseDepends(const char *Start,const char *Stop,
  91          std::string &Package,std::string &Ver,unsigned int &Op,
  92          bool const &ParseArchFlags);
  93    static const char *ParseDepends(const char *Start,const char *Stop,
  94          std::string &Package,std::string &Ver,unsigned int &Op,
  95          bool const &ParseArchFlags, bool const &StripMultiArch);
  96    static const char *ParseDepends(const char *Start,const char *Stop,
  97          std::string &Package,std::string &Ver,unsigned int &Op,
  98          bool const &ParseArchFlags, bool const &StripMultiArch,
  99          bool const &ParseRestrictionsList);
 100
 101    static const char *ConvertRelation(const char *I,unsigned int &Op);
 102
 103    debListParser(FileFd *File, std::string const &Arch = "");
 104    virtual ~debListParser() {};
 105 };
 106
 107 class debDebFileParser : public debListParser
 108 {
 109  private:
 110    std::string DebFile;
 111
 112  public:
 113    debDebFileParser(FileFd *File, std::string const &DebFile);
 114    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
 115                            pkgCache::VerIterator &Ver);
 116 };
 117
 118 class debTranslationsParser : public debListParser
 119 {
 120  public:
 121    // a translation can never be a real package
 122    virtual std::string Architecture() { return ""; }
 123    virtual std::string Version() { return ""; }
 124
 125    debTranslationsParser(FileFd *File, std::string const &Arch = "")
 126       : debListParser(File, Arch) {};
 127 };
 128
 129 #endif