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 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  23 #include <apt-pkg/string_view.h>
  24 #endif
  25
  26 #ifndef APT_8_CLEANER_HEADERS
  27 #include <apt-pkg/indexfile.h>
  28 #endif
  29
  30 class FileFd;
  31
  32 class APT_HIDDEN debListParser : public pkgCacheListParser
  33 {
  34    public:
  35
  36 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  37    // Parser Helper
  38    struct WordList
  39    {
  40       APT::StringView Str;
  41       unsigned char Val;
  42    };
  43 #endif
  44
  45    private:
  46    std::vector<std::string> forceEssential;
  47    std::vector<std::string> forceImportant;
  48    std::string MD5Buffer;
  49
  50    protected:
  51    pkgTagFile Tags;
  52    pkgTagSection Section;
  53    map_filesize_t iOffset;
  54
  55    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  56    bool ParseDepends(pkgCache::VerIterator &Ver, pkgTagSection::Key Key,
  57                      unsigned int Type);
  58    bool ParseProvides(pkgCache::VerIterator &Ver);
  59
  60 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  61    APT_HIDDEN static bool GrabWord(APT::StringView Word,const WordList *List,unsigned char &Out);
  62 #endif
  63    APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
  64
  65    public:
  66
  67    APT_PUBLIC static unsigned char GetPrio(std::string Str);
  68
  69    // These all operate against the current section
  70    virtual std::string Package() APT_OVERRIDE;
  71    virtual bool ArchitectureAll() APT_OVERRIDE;
  72 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  73    virtual APT::StringView Architecture() APT_OVERRIDE;
  74    virtual APT::StringView Version() APT_OVERRIDE;
  75 #endif
  76    virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
  77    virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
  78 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  79    virtual APT::StringView Description_md5() APT_OVERRIDE;
  80 #endif
  81    virtual unsigned short VersionHash() APT_OVERRIDE;
  82    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver) APT_OVERRIDE;
  83    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  84                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
  85    virtual map_filesize_t Offset() APT_OVERRIDE {return iOffset;};
  86    virtual map_filesize_t Size() APT_OVERRIDE {return Section.size();};
  87
  88    virtual bool Step() APT_OVERRIDE;
  89
  90    bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
  91                         std::string const &section);
  92
  93    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  94          std::string &Package,std::string &Ver,unsigned int &Op);
  95    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  96          std::string &Package,std::string &Ver,unsigned int &Op,
  97          bool const &ParseArchFlags);
  98    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  99          std::string &Package,std::string &Ver,unsigned int &Op,
 100          bool const &ParseArchFlags, bool const &StripMultiArch);
 101    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
 102          std::string &Package,std::string &Ver,unsigned int &Op,
 103          bool const &ParseArchFlags, bool const &StripMultiArch,
 104          bool const &ParseRestrictionsList);
 105
 106 #ifdef APT_PKG_EXPOSE_STRING_VIEW
 107    APT_HIDDEN static const char *ParseDepends(const char *Start,const char *Stop,
 108          APT::StringView &Package,
 109     APT::StringView &Ver,unsigned int &Op,
 110          bool const ParseArchFlags = false, bool StripMultiArch = true,
 111          bool const ParseRestrictionsList = false);
 112 #endif
 113
 114    APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
 115
 116    debListParser(FileFd *File);
 117    virtual ~debListParser();
 118 };
 119
 120 class APT_HIDDEN debDebFileParser : public debListParser
 121 {
 122  private:
 123    std::string DebFile;
 124
 125  public:
 126    debDebFileParser(FileFd *File, std::string const &DebFile);
 127    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
 128                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
 129 };
 130
 131 class APT_HIDDEN debTranslationsParser : public debListParser
 132 {
 133  public:
 134 #ifdef APT_PKG_EXPOSE_STRING_VIEW
 135    // a translation can never be a real package
 136    virtual APT::StringView Architecture() APT_OVERRIDE { return ""; }
 137    virtual APT::StringView Version() APT_OVERRIDE { return ""; }
 138 #endif
 139
 140    debTranslationsParser(FileFd *File)
 141       : debListParser(File) {};
 142 };
 143
 144 class APT_HIDDEN debStatusListParser : public debListParser
 145 {
 146  public:
 147    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
 148    debStatusListParser(FileFd *File)
 149       : debListParser(File) {};
 150 };
 151 #endif