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    bool ParseTag(pkgCache::VerIterator &Ver);
  60
  61 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  62    APT_HIDDEN static bool GrabWord(APT::StringView Word,const WordList *List,unsigned char &Out);
  63 #endif
  64    APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
  65
  66    public:
  67
  68    APT_PUBLIC static unsigned char GetPrio(std::string Str);
  69
  70    // These all operate against the current section
  71    virtual std::string Package() APT_OVERRIDE;
  72    virtual bool ArchitectureAll() APT_OVERRIDE;
  73 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  74    virtual APT::StringView Architecture() APT_OVERRIDE;
  75    virtual APT::StringView Version() APT_OVERRIDE;
  76 #endif
  77    virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
  78    virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
  79 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  80    virtual APT::StringView Description_md5() APT_OVERRIDE;
  81 #endif
  82    virtual unsigned short VersionHash() APT_OVERRIDE;
  83    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver) APT_OVERRIDE;
  84    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  85                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
  86    virtual map_filesize_t Offset() APT_OVERRIDE {return iOffset;};
  87    virtual map_filesize_t Size() APT_OVERRIDE {return Section.size();};
  88
  89    virtual bool Step() APT_OVERRIDE;
  90
  91    bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
  92                         std::string const &section);
  93
  94    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  95          std::string &Package,std::string &Ver,unsigned int &Op);
  96    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  97          std::string &Package,std::string &Ver,unsigned int &Op,
  98          bool const &ParseArchFlags);
  99    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
 100          std::string &Package,std::string &Ver,unsigned int &Op,
 101          bool const &ParseArchFlags, bool const &StripMultiArch);
 102    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
 103          std::string &Package,std::string &Ver,unsigned int &Op,
 104          bool const &ParseArchFlags, bool const &StripMultiArch,
 105          bool const &ParseRestrictionsList);
 106
 107 #ifdef APT_PKG_EXPOSE_STRING_VIEW
 108    APT_HIDDEN static const char *ParseDepends(const char *Start,const char *Stop,
 109          APT::StringView &Package,
 110     APT::StringView &Ver,unsigned int &Op,
 111          bool const ParseArchFlags = false, bool StripMultiArch = true,
 112          bool const ParseRestrictionsList = false);
 113 #endif
 114
 115    APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
 116
 117    debListParser(FileFd *File);
 118    virtual ~debListParser();
 119 };
 120
 121 class APT_HIDDEN debDebFileParser : public debListParser
 122 {
 123  private:
 124    std::string DebFile;
 125
 126  public:
 127    debDebFileParser(FileFd *File, std::string const &DebFile);
 128    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
 129                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
 130 };
 131
 132 class APT_HIDDEN debTranslationsParser : public debListParser
 133 {
 134  public:
 135 #ifdef APT_PKG_EXPOSE_STRING_VIEW
 136    // a translation can never be a real package
 137    virtual APT::StringView Architecture() APT_OVERRIDE { return ""; }
 138    virtual APT::StringView Version() APT_OVERRIDE { return ""; }
 139 #endif
 140
 141    debTranslationsParser(FileFd *File)
 142       : debListParser(File) {};
 143 };
 144
 145 class APT_HIDDEN debStatusListParser : public debListParser
 146 {
 147  public:
 148    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
 149    debStatusListParser(FileFd *File)
 150       : debListParser(File) {};
 151 };
 152 #endif